LinuxLists.cc - [RFC PATCH 0/5] Retire IA64/Itanium support

2023-02-15 10:01:19

Subject: [RFC PATCH 0/5] Retire IA64/Itanium support

The IA64 port of Linux has no maintainer, and according to a report from
its only remaining user [0], it has been broken for a month and nobody
cares.

Given that keeping a complex but unused architecture alive uses up
valuable developer bandwidth, let's just get rid of it.

This supersedes my patch proposing to mark it as 'dead', which received
no replies from anyone that wants to keep it alive. [1]

[0] https://www.spinics.net/lists/linux-ia64/msg21926.html
[1] https://lore.kernel.org/all/[email protected]/

Cc: Jonathan Corbet <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Jessica Clarke <[email protected]>
Cc: John Paul Adrian Glaubitz <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Guenter Roeck <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: [email protected]

Ard Biesheuvel (5):
arch: Remove Itanium (IA-64) architecture
kernel: Drop IA64 support from sig_fault handlers
Documentation: Drop IA64 from feature descriptions
lib/raid6: Drop IA64 support
Documentation: Drop or replace remaining mentions of IA64

Documentation/ABI/testing/sysfs-devices-system-cpu | 3 -
Documentation/ABI/testing/sysfs-firmware-dmi-entries | 2 +-
Documentation/admin-guide/kdump/kdump.rst | 37 +-
Documentation/admin-guide/kdump/vmcoreinfo.rst | 30 -
Documentation/admin-guide/kernel-parameters.txt | 8 +-
Documentation/admin-guide/mm/memory-hotplug.rst | 2 +-
Documentation/admin-guide/sysctl/kernel.rst | 23 +-
Documentation/arch.rst | 1 -
Documentation/block/ioprio.rst | 3 -
Documentation/core-api/cpu_hotplug.rst | 6 -
Documentation/core-api/debugging-via-ohci1394.rst | 6 +-
Documentation/features/core/cBPF-JIT/arch-support.txt | 1 -
Documentation/features/core/eBPF-JIT/arch-support.txt | 1 -
Documentation/features/core/generic-idle-thread/arch-support.txt | 1 -
Documentation/features/core/jump-labels/arch-support.txt | 1 -
Documentation/features/core/thread-info-in-task/arch-support.txt | 1 -
Documentation/features/core/tracehook/arch-support.txt | 1 -
Documentation/features/debug/KASAN/arch-support.txt | 1 -
Documentation/features/debug/debug-vm-pgtable/arch-support.txt | 1 -
Documentation/features/debug/gcov-profile-all/arch-support.txt | 1 -
Documentation/features/debug/kcov/arch-support.txt | 1 -
Documentation/features/debug/kgdb/arch-support.txt | 1 -
Documentation/features/debug/kmemleak/arch-support.txt | 1 -
Documentation/features/debug/kprobes-on-ftrace/arch-support.txt | 1 -
Documentation/features/debug/kprobes/arch-support.txt | 1 -
Documentation/features/debug/kretprobes/arch-support.txt | 1 -
Documentation/features/debug/optprobes/arch-support.txt | 1 -
Documentation/features/debug/stackprotector/arch-support.txt | 1 -
Documentation/features/debug/uprobes/arch-support.txt | 1 -
Documentation/features/debug/user-ret-profiler/arch-support.txt | 1 -
Documentation/features/io/dma-contiguous/arch-support.txt | 1 -
Documentation/features/locking/cmpxchg-local/arch-support.txt | 1 -
Documentation/features/locking/lockdep/arch-support.txt | 1 -
Documentation/features/locking/queued-rwlocks/arch-support.txt | 1 -
Documentation/features/locking/queued-spinlocks/arch-support.txt | 1 -
Documentation/features/perf/kprobes-event/arch-support.txt | 1 -
Documentation/features/perf/perf-regs/arch-support.txt | 1 -
Documentation/features/perf/perf-stackdump/arch-support.txt | 1 -
Documentation/features/sched/membarrier-sync-core/arch-support.txt | 1 -
Documentation/features/sched/numa-balancing/arch-support.txt | 1 -
Documentation/features/seccomp/seccomp-filter/arch-support.txt | 1 -
Documentation/features/time/arch-tick-broadcast/arch-support.txt | 1 -
Documentation/features/time/clockevents/arch-support.txt | 1 -
Documentation/features/time/context-tracking/arch-support.txt | 1 -
Documentation/features/time/irq-time-acct/arch-support.txt | 1 -
Documentation/features/time/virt-cpuacct/arch-support.txt | 1 -
Documentation/features/vm/ELF-ASLR/arch-support.txt | 1 -
Documentation/features/vm/PG_uncached/arch-support.txt | 1 -
Documentation/features/vm/THP/arch-support.txt | 1 -
Documentation/features/vm/TLB/arch-support.txt | 1 -
Documentation/features/vm/huge-vmap/arch-support.txt | 1 -
Documentation/features/vm/ioremap_prot/arch-support.txt | 1 -
Documentation/features/vm/pte_special/arch-support.txt | 1 -
Documentation/ia64/aliasing.rst | 246 ---
Documentation/ia64/efirtc.rst | 144 --
Documentation/ia64/err_inject.rst | 1067 ---------
Documentation/ia64/features.rst | 3 -
Documentation/ia64/fsys.rst | 303 ---
Documentation/ia64/ia64.rst | 49 -
Documentation/ia64/index.rst | 19 -
Documentation/ia64/irq-redir.rst | 80 -
Documentation/ia64/mca.rst | 198 --
Documentation/ia64/serial.rst | 165 --
Documentation/kbuild/makefiles.rst | 2 +-
Documentation/networking/device_drivers/ethernet/neterion/s2io.rst | 4 +-
Documentation/scheduler/sched-arch.rst | 4 +-
Documentation/trace/kprobes.rst | 1 -
Documentation/translations/zh_CN/arch.rst | 1 -
Documentation/translations/zh_CN/core-api/cpu_hotplug.rst | 6 -
Documentation/translations/zh_CN/scheduler/sched-arch.rst | 5 +-
MAINTAINERS | 11 -
Makefile | 4 +-
arch/Kconfig | 1 -
arch/ia64/Kbuild | 3 -
arch/ia64/Kconfig | 410 ----
arch/ia64/Kconfig.debug | 55 -
arch/ia64/Makefile | 82 -
arch/ia64/configs/bigsur_defconfig | 102 -
arch/ia64/configs/generic_defconfig | 206 --
arch/ia64/configs/gensparse_defconfig | 184 --
arch/ia64/configs/tiger_defconfig | 169 --
arch/ia64/configs/zx1_defconfig | 148 --
arch/ia64/hp/common/Makefile | 10 -
arch/ia64/hp/common/aml_nfw.c | 232 --
arch/ia64/hp/common/sba_iommu.c | 2147 ------------------
arch/ia64/include/asm/Kbuild | 5 -
arch/ia64/include/asm/acenv.h | 49 -
arch/ia64/include/asm/acpi-ext.h | 17 -
arch/ia64/include/asm/acpi.h | 110 -
arch/ia64/include/asm/agp.h | 27 -
arch/ia64/include/asm/asm-offsets.h | 1 -
arch/ia64/include/asm/asm-prototypes.h | 30 -
arch/ia64/include/asm/asmmacro.h | 136 --
arch/ia64/include/asm/atomic.h | 223 --
arch/ia64/include/asm/barrier.h | 79 -
arch/ia64/include/asm/bitops.h | 453 ----
arch/ia64/include/asm/bug.h | 19 -
arch/ia64/include/asm/bugs.h | 20 -
arch/ia64/include/asm/cache.h | 30 -
arch/ia64/include/asm/cacheflush.h | 33 -
arch/ia64/include/asm/checksum.h | 63 -
arch/ia64/include/asm/clocksource.h | 11 -
arch/ia64/include/asm/cmpxchg.h | 16 -
arch/ia64/include/asm/cpu.h | 23 -
arch/ia64/include/asm/cputime.h | 21 -
arch/ia64/include/asm/current.h | 18 -
arch/ia64/include/asm/cyclone.h | 16 -
arch/ia64/include/asm/delay.h | 89 -
arch/ia64/include/asm/device.h | 14 -
arch/ia64/include/asm/div64.h | 1 -
arch/ia64/include/asm/dma-mapping.h | 16 -
arch/ia64/include/asm/dma.h | 17 -
arch/ia64/include/asm/dmi.h | 15 -
arch/ia64/include/asm/early_ioremap.h | 11 -
arch/ia64/include/asm/efi.h | 13 -
arch/ia64/include/asm/elf.h | 233 --
arch/ia64/include/asm/emergency-restart.h | 6 -
arch/ia64/include/asm/esi.h | 30 -
arch/ia64/include/asm/exception.h | 23 -
arch/ia64/include/asm/export.h | 3 -
arch/ia64/include/asm/extable.h | 12 -
arch/ia64/include/asm/fb.h | 24 -
arch/ia64/include/asm/fpswa.h | 74 -
arch/ia64/include/asm/ftrace.h | 28 -
arch/ia64/include/asm/futex.h | 109 -
arch/ia64/include/asm/gcc_intrin.h | 13 -
arch/ia64/include/asm/hardirq.h | 27 -
arch/ia64/include/asm/hugetlb.h | 34 -
arch/ia64/include/asm/hw_irq.h | 167 --
arch/ia64/include/asm/idle.h | 8 -
arch/ia64/include/asm/intrinsics.h | 13 -
arch/ia64/include/asm/io.h | 274 ---
arch/ia64/include/asm/iommu.h | 22 -
arch/ia64/include/asm/iosapic.h | 106 -
arch/ia64/include/asm/irq.h | 37 -
arch/ia64/include/asm/irq_regs.h | 1 -
arch/ia64/include/asm/irq_remapping.h | 5 -
arch/ia64/include/asm/irqflags.h | 95 -
arch/ia64/include/asm/kdebug.h | 45 -
arch/ia64/include/asm/kexec.h | 46 -
arch/ia64/include/asm/kprobes.h | 116 -
arch/ia64/include/asm/kregs.h | 166 --
arch/ia64/include/asm/libata-portmap.h | 9 -
arch/ia64/include/asm/linkage.h | 19 -
arch/ia64/include/asm/local.h | 1 -
arch/ia64/include/asm/mca.h | 185 --
arch/ia64/include/asm/mca_asm.h | 245 ---
arch/ia64/include/asm/meminit.h | 59 -
arch/ia64/include/asm/mman.h | 18 -
arch/ia64/include/asm/mmiowb.h | 17 -
arch/ia64/include/asm/mmu.h | 14 -
arch/ia64/include/asm/mmu_context.h | 194 --
arch/ia64/include/asm/mmzone.h | 35 -
arch/ia64/include/asm/module.h | 35 -
arch/ia64/include/asm/module.lds.h | 14 -
arch/ia64/include/asm/msidef.h | 43 -
arch/ia64/include/asm/native/inst.h | 119 -
arch/ia64/include/asm/native/irq.h | 20 -
arch/ia64/include/asm/native/patchlist.h | 24 -
arch/ia64/include/asm/nodedata.h | 63 -
arch/ia64/include/asm/numa.h | 83 -
arch/ia64/include/asm/page.h | 214 --
arch/ia64/include/asm/pal.h | 1827 ---------------
arch/ia64/include/asm/param.h | 18 -
arch/ia64/include/asm/parport.h | 20 -
arch/ia64/include/asm/patch.h | 28 -
arch/ia64/include/asm/pci.h | 66 -
arch/ia64/include/asm/percpu.h | 53 -
arch/ia64/include/asm/pgalloc.h | 64 -
arch/ia64/include/asm/pgtable.h | 520 -----
arch/ia64/include/asm/processor.h | 663 ------
arch/ia64/include/asm/ptrace.h | 146 --
arch/ia64/include/asm/sal.h | 919 --------
arch/ia64/include/asm/sections.h | 33 -
arch/ia64/include/asm/serial.h | 17 -
arch/ia64/include/asm/shmparam.h | 13 -
arch/ia64/include/asm/signal.h | 33 -
arch/ia64/include/asm/smp.h | 103 -
arch/ia64/include/asm/sn/intr.h | 15 -
arch/ia64/include/asm/sn/sn_sal.h | 124 --
arch/ia64/include/asm/sparsemem.h | 28 -
arch/ia64/include/asm/spinlock.h | 265 ---
arch/ia64/include/asm/spinlock_types.h | 22 -
arch/ia64/include/asm/string.h | 22 -
arch/ia64/include/asm/switch_to.h | 71 -
arch/ia64/include/asm/syscall.h | 65 -
arch/ia64/include/asm/thread_info.h | 131 --
arch/ia64/include/asm/timex.h | 47 -
arch/ia64/include/asm/tlb.h | 50 -
arch/ia64/include/asm/tlbflush.h | 128 --
arch/ia64/include/asm/topology.h | 56 -
arch/ia64/include/asm/types.h | 32 -
arch/ia64/include/asm/uaccess.h | 265 ---
arch/ia64/include/asm/uncached.h | 9 -
arch/ia64/include/asm/unistd.h | 38 -
arch/ia64/include/asm/unwind.h | 234 --
arch/ia64/include/asm/user.h | 53 -
arch/ia64/include/asm/ustack.h | 12 -
arch/ia64/include/asm/uv/uv.h | 30 -
arch/ia64/include/asm/uv/uv_hub.h | 315 ---
arch/ia64/include/asm/uv/uv_mmrs.h | 825 -------
arch/ia64/include/asm/vermagic.h | 15 -
arch/ia64/include/asm/vga.h | 26 -
arch/ia64/include/asm/vmalloc.h | 4 -
arch/ia64/include/asm/xor.h | 30 -
arch/ia64/include/asm/xtp.h | 46 -
arch/ia64/include/uapi/asm/Kbuild | 2 -
arch/ia64/include/uapi/asm/auxvec.h | 14 -
arch/ia64/include/uapi/asm/bitsperlong.h | 9 -
arch/ia64/include/uapi/asm/break.h | 23 -
arch/ia64/include/uapi/asm/byteorder.h | 7 -
arch/ia64/include/uapi/asm/cmpxchg.h | 159 --
arch/ia64/include/uapi/asm/fcntl.h | 15 -
arch/ia64/include/uapi/asm/fpu.h | 67 -
arch/ia64/include/uapi/asm/gcc_intrin.h | 619 ------
arch/ia64/include/uapi/asm/ia64regs.h | 101 -
arch/ia64/include/uapi/asm/intel_intrin.h | 162 --
arch/ia64/include/uapi/asm/intrinsics.h | 86 -
arch/ia64/include/uapi/asm/mman.h | 17 -
arch/ia64/include/uapi/asm/param.h | 30 -
arch/ia64/include/uapi/asm/posix_types.h | 9 -
arch/ia64/include/uapi/asm/ptrace.h | 248 ---
arch/ia64/include/uapi/asm/ptrace_offsets.h | 269 ---
arch/ia64/include/uapi/asm/resource.h | 8 -
arch/ia64/include/uapi/asm/rse.h | 67 -
arch/ia64/include/uapi/asm/setup.h | 25 -
arch/ia64/include/uapi/asm/sigcontext.h | 71 -
arch/ia64/include/uapi/asm/siginfo.h | 28 -
arch/ia64/include/uapi/asm/signal.h | 98 -
arch/ia64/include/uapi/asm/stat.h | 52 -
arch/ia64/include/uapi/asm/statfs.h | 21 -
arch/ia64/include/uapi/asm/swab.h | 35 -
arch/ia64/include/uapi/asm/types.h | 32 -
arch/ia64/include/uapi/asm/ucontext.h | 13 -
arch/ia64/include/uapi/asm/unistd.h | 22 -
arch/ia64/include/uapi/asm/ustack.h | 13 -
arch/ia64/install.sh | 30 -
arch/ia64/kernel/.gitignore | 3 -
arch/ia64/kernel/Makefile | 46 -
arch/ia64/kernel/Makefile.gate | 29 -
arch/ia64/kernel/acpi-ext.c | 101 -
arch/ia64/kernel/acpi.c | 911 --------
arch/ia64/kernel/asm-offsets.c | 289 ---
arch/ia64/kernel/audit.c | 63 -
arch/ia64/kernel/brl_emu.c | 217 --
arch/ia64/kernel/crash.c | 266 ---
arch/ia64/kernel/crash_dump.c | 27 -
arch/ia64/kernel/cyclone.c | 125 --
arch/ia64/kernel/dma-mapping.c | 9 -
arch/ia64/kernel/efi.c | 1360 ------------
arch/ia64/kernel/efi_stub.S | 87 -
arch/ia64/kernel/elfcore.c | 77 -
arch/ia64/kernel/entry.S | 1428 ------------
arch/ia64/kernel/entry.h | 83 -
arch/ia64/kernel/err_inject.c | 273 ---
arch/ia64/kernel/esi.c | 193 --
arch/ia64/kernel/esi_stub.S | 99 -
arch/ia64/kernel/fsys.S | 837 -------
arch/ia64/kernel/fsyscall_gtod_data.h | 30 -
arch/ia64/kernel/ftrace.c | 196 --
arch/ia64/kernel/gate-data.S | 3 -
arch/ia64/kernel/gate.S | 380 ----
arch/ia64/kernel/gate.lds.S | 108 -
arch/ia64/kernel/head.S | 1168 ----------
arch/ia64/kernel/iosapic.c | 1137 ----------
arch/ia64/kernel/irq.c | 181 --
arch/ia64/kernel/irq.h | 3 -
arch/ia64/kernel/irq_ia64.c | 645 ------
arch/ia64/kernel/irq_lsapic.c | 45 -
arch/ia64/kernel/ivt.S | 1689 --------------
arch/ia64/kernel/kprobes.c | 911 --------
arch/ia64/kernel/machine_kexec.c | 163 --
arch/ia64/kernel/mca.c | 2111 ------------------
arch/ia64/kernel/mca_asm.S | 1123 ----------
arch/ia64/kernel/mca_drv.c | 796 -------
arch/ia64/kernel/mca_drv.h | 123 --
arch/ia64/kernel/mca_drv_asm.S | 56 -
arch/ia64/kernel/minstate.h | 251 ---
arch/ia64/kernel/module.c | 955 --------
arch/ia64/kernel/msi_ia64.c | 198 --
arch/ia64/kernel/numa.c | 73 -
arch/ia64/kernel/pal.S | 306 ---
arch/ia64/kernel/palinfo.c | 942 --------
arch/ia64/kernel/patch.c | 237 --
arch/ia64/kernel/pci-dma.c | 33 -
arch/ia64/kernel/perfmon_itanium.h | 116 -
arch/ia64/kernel/process.c | 610 -----
arch/ia64/kernel/ptrace.c | 2012 -----------------
arch/ia64/kernel/relocate_kernel.S | 321 ---
arch/ia64/kernel/sal.c | 400 ----
arch/ia64/kernel/salinfo.c | 646 ------
arch/ia64/kernel/setup.c | 1082 ---------
arch/ia64/kernel/sigframe.h | 26 -
arch/ia64/kernel/signal.c | 412 ----
arch/ia64/kernel/smp.c | 335 ---
arch/ia64/kernel/smpboot.c | 839 -------
arch/ia64/kernel/stacktrace.c | 40 -
arch/ia64/kernel/sys_ia64.c | 197 --
arch/ia64/kernel/syscalls/Makefile | 32 -
arch/ia64/kernel/syscalls/syscall.tbl | 373 ----
arch/ia64/kernel/time.c | 462 ----
arch/ia64/kernel/topology.c | 410 ----
arch/ia64/kernel/traps.c | 612 ------
arch/ia64/kernel/unaligned.c | 1560 -------------
arch/ia64/kernel/uncached.c | 273 ---
arch/ia64/kernel/unwind.c | 2320 --------------------
arch/ia64/kernel/unwind_decoder.c | 460 ----
arch/ia64/kernel/unwind_i.h | 165 --
arch/ia64/kernel/vmlinux.lds.S | 225 --
arch/ia64/lib/Makefile | 48 -
arch/ia64/lib/checksum.c | 102 -
arch/ia64/lib/clear_page.S | 79 -
arch/ia64/lib/clear_user.S | 212 --
arch/ia64/lib/copy_page.S | 101 -
arch/ia64/lib/copy_page_mck.S | 188 --
arch/ia64/lib/copy_user.S | 613 ------
arch/ia64/lib/csum_partial_copy.c | 98 -
arch/ia64/lib/do_csum.S | 324 ---
arch/ia64/lib/flush.S | 120 -
arch/ia64/lib/idiv32.S | 86 -
arch/ia64/lib/idiv64.S | 83 -
arch/ia64/lib/io.c | 51 -
arch/ia64/lib/ip_fast_csum.S | 148 --
arch/ia64/lib/memcpy.S | 304 ---
arch/ia64/lib/memcpy_mck.S | 659 ------
arch/ia64/lib/memset.S | 365 ---
arch/ia64/lib/strlen.S | 195 --
arch/ia64/lib/strncpy_from_user.S | 47 -
arch/ia64/lib/strnlen_user.S | 48 -
arch/ia64/lib/xor.S | 181 --
arch/ia64/mm/Makefile | 11 -
arch/ia64/mm/contig.c | 208 --
arch/ia64/mm/discontig.c | 635 ------
arch/ia64/mm/extable.c | 24 -
arch/ia64/mm/fault.c | 272 ---
arch/ia64/mm/hugetlbpage.c | 186 --
arch/ia64/mm/init.c | 518 -----
arch/ia64/mm/ioremap.c | 123 --
arch/ia64/mm/numa.c | 80 -
arch/ia64/mm/tlb.c | 591 -----
arch/ia64/pci/Makefile | 5 -
arch/ia64/pci/fixup.c | 80 -
arch/ia64/pci/pci.c | 576 -----
arch/ia64/scripts/check-gas | 16 -
arch/ia64/scripts/check-gas-asm.S | 2 -
arch/ia64/scripts/check-model.c | 1 -
arch/ia64/scripts/check-segrel.S | 5 -
arch/ia64/scripts/check-segrel.lds | 13 -
arch/ia64/scripts/check-serialize.S | 2 -
arch/ia64/scripts/check-text-align.S | 7 -
arch/ia64/scripts/toolchain-flags | 54 -
arch/ia64/scripts/unwcheck.py | 65 -
arch/ia64/uv/Makefile | 12 -
arch/ia64/uv/kernel/Makefile | 12 -
arch/ia64/uv/kernel/setup.c | 120 -
drivers/acpi/Kconfig | 6 +-
drivers/acpi/numa/Kconfig | 4 +-
drivers/acpi/osl.c | 2 +-
drivers/char/Kconfig | 4 +-
drivers/char/Makefile | 1 -
drivers/char/agp/Kconfig | 16 +-
drivers/char/agp/Makefile | 2 -
drivers/char/agp/hp-agp.c | 550 -----
drivers/char/agp/i460-agp.c | 659 ------
drivers/char/hpet.c | 30 -
drivers/char/hw_random/Kconfig | 2 +-
drivers/char/mem.c | 12 -
drivers/char/mspec.c | 295 ---
drivers/cpufreq/Kconfig | 11 -
drivers/cpufreq/Makefile | 1 -
drivers/cpufreq/ia64-acpi-cpufreq.c | 353 ---
drivers/firmware/Kconfig | 24 -
drivers/firmware/Makefile | 1 -
drivers/firmware/efi/Kconfig | 6 +-
drivers/firmware/efi/efi.c | 13 +-
drivers/firmware/pcdp.c | 135 --
drivers/firmware/pcdp.h | 108 -
drivers/gpu/drm/drm_ioc32.c | 4 +-
drivers/input/serio/i8042.h | 2 +-
drivers/iommu/Kconfig | 4 +-
drivers/iommu/intel/Kconfig | 2 +-
drivers/media/cec/platform/Kconfig | 2 +-
drivers/misc/Kconfig | 2 +-
drivers/misc/sgi-gru/gru.h | 4 +-
drivers/misc/sgi-gru/gru_instructions.h | 12 +-
drivers/misc/sgi-gru/grufile.c | 72 -
drivers/misc/sgi-gru/gruhandles.c | 6 -
drivers/misc/sgi-gru/grumain.c | 4 -
drivers/misc/sgi-xp/xp.h | 2 +-
drivers/misc/sgi-xp/xp_uv.c | 24 -
drivers/misc/sgi-xp/xpc_main.c | 31 -
drivers/misc/sgi-xp/xpc_uv.c | 85 -
drivers/net/ethernet/broadcom/tg3.c | 2 +-
drivers/net/ethernet/brocade/bna/bnad.h | 1 -
drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c | 2 -
drivers/pci/vgaarb.c | 2 +-
drivers/tty/serial/8250/Kconfig | 2 +-
drivers/tty/vt/keyboard.c | 2 +-
drivers/video/fbdev/Kconfig | 2 +-
drivers/watchdog/Kconfig | 2 +-
fs/Kconfig | 2 +-
fs/afs/main.c | 2 -
fs/xfs/xfs_ioctl32.h | 2 +-
include/linux/acpi.h | 9 +-
include/linux/efi.h | 7 -
include/linux/mm.h | 2 -
include/linux/moduleparam.h | 2 +-
include/linux/raid/pq.h | 2 -
include/linux/sched/signal.h | 17 +-
include/trace/events/mmflags.h | 2 +-
init/Kconfig | 2 +-
kernel/cpu.c | 3 -
kernel/fork.c | 2 +-
kernel/sched/core.c | 29 +-
kernel/signal.c | 25 +-
kernel/sysctl.c | 9 -
lib/Kconfig.debug | 2 +-
lib/decompress_unxz.c | 3 -
lib/raid6/Makefile | 4 +-
lib/raid6/algos.c | 4 -
lib/xz/Kconfig | 5 -
mm/mmap.c | 6 +-
scripts/headers_install.sh | 1 -
tools/arch/ia64/include/asm/barrier.h | 59 -
tools/arch/ia64/include/uapi/asm/bitsperlong.h | 9 -
tools/arch/ia64/include/uapi/asm/mman.h | 7 -
usr/include/Makefile | 6 -
427 files changed, 74 insertions(+), 65400 deletions(-)
delete mode 100644 Documentation/ia64/aliasing.rst
delete mode 100644 Documentation/ia64/efirtc.rst
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delete mode 100644 Documentation/ia64/features.rst
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--
2.39.1

2023-02-15 10:01:19

by Ard Biesheuvel

[permalink] [raw]

Subject: [RFC PATCH 1/5] arch: Remove Itanium (IA-64) architecture

Itanium is the original architecture for which EFI was developed, and
the way Linux supports it deviates significantly from other
architectures.

So it is anyone's guess whether the ongoing maintenance and developement
of the EFI subsystem has regressed Itanium or not - QEMU no longer
implements support for it, and so there is zero test coverage using
actual hardware.

Note that the Intel firmware team themselves already removed all IA-64
support from the Tianocore/EDK2 reference implementation of EFI in 2018,
so let's follow suit, and drop IA-64 from Linux as well.

Acked-by: Tony Luck <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
---
Documentation/core-api/cpu_hotplug.rst | 6 -
Documentation/ia64/aliasing.rst | 246 ---
Documentation/ia64/efirtc.rst | 144 --
Documentation/ia64/err_inject.rst | 1067 ---------
Documentation/ia64/features.rst | 3 -
Documentation/ia64/fsys.rst | 303 ---
Documentation/ia64/ia64.rst | 49 -
Documentation/ia64/index.rst | 19 -
Documentation/ia64/irq-redir.rst | 80 -
Documentation/ia64/mca.rst | 198 --
Documentation/ia64/serial.rst | 165 --
MAINTAINERS | 11 -
arch/Kconfig | 1 -
arch/ia64/Kbuild | 3 -
arch/ia64/Kconfig | 410 ----
arch/ia64/Kconfig.debug | 55 -
arch/ia64/Makefile | 82 -
arch/ia64/configs/bigsur_defconfig | 102 -
arch/ia64/configs/generic_defconfig | 206 --
arch/ia64/configs/gensparse_defconfig | 184 --
arch/ia64/configs/tiger_defconfig | 169 --
arch/ia64/configs/zx1_defconfig | 148 --
arch/ia64/hp/common/Makefile | 10 -
arch/ia64/hp/common/aml_nfw.c | 232 --
arch/ia64/hp/common/sba_iommu.c | 2147 ------------------
arch/ia64/include/asm/Kbuild | 5 -
arch/ia64/include/asm/acenv.h | 49 -
arch/ia64/include/asm/acpi-ext.h | 17 -
arch/ia64/include/asm/acpi.h | 110 -
arch/ia64/include/asm/agp.h | 27 -
arch/ia64/include/asm/asm-offsets.h | 1 -
arch/ia64/include/asm/asm-prototypes.h | 30 -
arch/ia64/include/asm/asmmacro.h | 136 --
arch/ia64/include/asm/atomic.h | 223 --
arch/ia64/include/asm/barrier.h | 79 -
arch/ia64/include/asm/bitops.h | 453 ----
arch/ia64/include/asm/bug.h | 19 -
arch/ia64/include/asm/bugs.h | 20 -
arch/ia64/include/asm/cache.h | 30 -
arch/ia64/include/asm/cacheflush.h | 33 -
arch/ia64/include/asm/checksum.h | 63 -
arch/ia64/include/asm/clocksource.h | 11 -
arch/ia64/include/asm/cmpxchg.h | 16 -
arch/ia64/include/asm/cpu.h | 23 -
arch/ia64/include/asm/cputime.h | 21 -
arch/ia64/include/asm/current.h | 18 -
arch/ia64/include/asm/cyclone.h | 16 -
arch/ia64/include/asm/delay.h | 89 -
arch/ia64/include/asm/device.h | 14 -
arch/ia64/include/asm/div64.h | 1 -
arch/ia64/include/asm/dma-mapping.h | 16 -
arch/ia64/include/asm/dma.h | 17 -
arch/ia64/include/asm/dmi.h | 15 -
arch/ia64/include/asm/early_ioremap.h | 11 -
arch/ia64/include/asm/efi.h | 13 -
arch/ia64/include/asm/elf.h | 233 --
arch/ia64/include/asm/emergency-restart.h | 6 -
arch/ia64/include/asm/esi.h | 30 -
arch/ia64/include/asm/exception.h | 23 -
arch/ia64/include/asm/export.h | 3 -
arch/ia64/include/asm/extable.h | 12 -
arch/ia64/include/asm/fb.h | 24 -
arch/ia64/include/asm/fpswa.h | 74 -
arch/ia64/include/asm/ftrace.h | 28 -
arch/ia64/include/asm/futex.h | 109 -
arch/ia64/include/asm/gcc_intrin.h | 13 -
arch/ia64/include/asm/hardirq.h | 27 -
arch/ia64/include/asm/hugetlb.h | 34 -
arch/ia64/include/asm/hw_irq.h | 167 --
arch/ia64/include/asm/idle.h | 8 -
arch/ia64/include/asm/intrinsics.h | 13 -
arch/ia64/include/asm/io.h | 274 ---
arch/ia64/include/asm/iommu.h | 22 -
arch/ia64/include/asm/iosapic.h | 106 -
arch/ia64/include/asm/irq.h | 37 -
arch/ia64/include/asm/irq_regs.h | 1 -
arch/ia64/include/asm/irq_remapping.h | 5 -
arch/ia64/include/asm/irqflags.h | 95 -
arch/ia64/include/asm/kdebug.h | 45 -
arch/ia64/include/asm/kexec.h | 46 -
arch/ia64/include/asm/kprobes.h | 116 -
arch/ia64/include/asm/kregs.h | 166 --
arch/ia64/include/asm/libata-portmap.h | 9 -
arch/ia64/include/asm/linkage.h | 19 -
arch/ia64/include/asm/local.h | 1 -
arch/ia64/include/asm/mca.h | 185 --
arch/ia64/include/asm/mca_asm.h | 245 ---
arch/ia64/include/asm/meminit.h | 59 -
arch/ia64/include/asm/mman.h | 18 -
arch/ia64/include/asm/mmiowb.h | 17 -
arch/ia64/include/asm/mmu.h | 14 -
arch/ia64/include/asm/mmu_context.h | 194 --
arch/ia64/include/asm/mmzone.h | 35 -
arch/ia64/include/asm/module.h | 35 -
arch/ia64/include/asm/module.lds.h | 14 -
arch/ia64/include/asm/msidef.h | 43 -
arch/ia64/include/asm/native/inst.h | 119 -
arch/ia64/include/asm/native/irq.h | 20 -
arch/ia64/include/asm/native/patchlist.h | 24 -
arch/ia64/include/asm/nodedata.h | 63 -
arch/ia64/include/asm/numa.h | 83 -
arch/ia64/include/asm/page.h | 214 --
arch/ia64/include/asm/pal.h | 1827 ---------------
arch/ia64/include/asm/param.h | 18 -
arch/ia64/include/asm/parport.h | 20 -
arch/ia64/include/asm/patch.h | 28 -
arch/ia64/include/asm/pci.h | 66 -
arch/ia64/include/asm/percpu.h | 53 -
arch/ia64/include/asm/pgalloc.h | 64 -
arch/ia64/include/asm/pgtable.h | 520 -----
arch/ia64/include/asm/processor.h | 663 ------
arch/ia64/include/asm/ptrace.h | 146 --
arch/ia64/include/asm/sal.h | 919 --------
arch/ia64/include/asm/sections.h | 33 -
arch/ia64/include/asm/serial.h | 17 -
arch/ia64/include/asm/shmparam.h | 13 -
arch/ia64/include/asm/signal.h | 33 -
arch/ia64/include/asm/smp.h | 103 -
arch/ia64/include/asm/sn/intr.h | 15 -
arch/ia64/include/asm/sn/sn_sal.h | 124 --
arch/ia64/include/asm/sparsemem.h | 28 -
arch/ia64/include/asm/spinlock.h | 265 ---
arch/ia64/include/asm/spinlock_types.h | 22 -
arch/ia64/include/asm/string.h | 22 -
arch/ia64/include/asm/switch_to.h | 71 -
arch/ia64/include/asm/syscall.h | 65 -
arch/ia64/include/asm/thread_info.h | 131 --
arch/ia64/include/asm/timex.h | 47 -
arch/ia64/include/asm/tlb.h | 50 -
arch/ia64/include/asm/tlbflush.h | 128 --
arch/ia64/include/asm/topology.h | 56 -
arch/ia64/include/asm/types.h | 32 -
arch/ia64/include/asm/uaccess.h | 265 ---
arch/ia64/include/asm/uncached.h | 9 -
arch/ia64/include/asm/unistd.h | 38 -
arch/ia64/include/asm/unwind.h | 234 --
arch/ia64/include/asm/user.h | 53 -
arch/ia64/include/asm/ustack.h | 12 -
arch/ia64/include/asm/uv/uv.h | 30 -
arch/ia64/include/asm/uv/uv_hub.h | 315 ---
arch/ia64/include/asm/uv/uv_mmrs.h | 825 -------
arch/ia64/include/asm/vermagic.h | 15 -
arch/ia64/include/asm/vga.h | 26 -
arch/ia64/include/asm/vmalloc.h | 4 -
arch/ia64/include/asm/xor.h | 30 -
arch/ia64/include/asm/xtp.h | 46 -
arch/ia64/include/uapi/asm/Kbuild | 2 -
arch/ia64/include/uapi/asm/auxvec.h | 14 -
arch/ia64/include/uapi/asm/bitsperlong.h | 9 -
arch/ia64/include/uapi/asm/break.h | 23 -
arch/ia64/include/uapi/asm/byteorder.h | 7 -
arch/ia64/include/uapi/asm/cmpxchg.h | 159 --
arch/ia64/include/uapi/asm/fcntl.h | 15 -
arch/ia64/include/uapi/asm/fpu.h | 67 -
arch/ia64/include/uapi/asm/gcc_intrin.h | 619 ------
arch/ia64/include/uapi/asm/ia64regs.h | 101 -
arch/ia64/include/uapi/asm/intel_intrin.h | 162 --
arch/ia64/include/uapi/asm/intrinsics.h | 86 -
arch/ia64/include/uapi/asm/mman.h | 17 -
arch/ia64/include/uapi/asm/param.h | 30 -
arch/ia64/include/uapi/asm/posix_types.h | 9 -
arch/ia64/include/uapi/asm/ptrace.h | 248 ---
arch/ia64/include/uapi/asm/ptrace_offsets.h | 269 ---
arch/ia64/include/uapi/asm/resource.h | 8 -
arch/ia64/include/uapi/asm/rse.h | 67 -
arch/ia64/include/uapi/asm/setup.h | 25 -
arch/ia64/include/uapi/asm/sigcontext.h | 71 -
arch/ia64/include/uapi/asm/siginfo.h | 28 -
arch/ia64/include/uapi/asm/signal.h | 98 -
arch/ia64/include/uapi/asm/stat.h | 52 -
arch/ia64/include/uapi/asm/statfs.h | 21 -
arch/ia64/include/uapi/asm/swab.h | 35 -
arch/ia64/include/uapi/asm/types.h | 32 -
arch/ia64/include/uapi/asm/ucontext.h | 13 -
arch/ia64/include/uapi/asm/unistd.h | 22 -
arch/ia64/include/uapi/asm/ustack.h | 13 -
arch/ia64/install.sh | 30 -
arch/ia64/kernel/.gitignore | 3 -
arch/ia64/kernel/Makefile | 46 -
arch/ia64/kernel/Makefile.gate | 29 -
arch/ia64/kernel/acpi-ext.c | 101 -
arch/ia64/kernel/acpi.c | 911 --------
arch/ia64/kernel/asm-offsets.c | 289 ---
arch/ia64/kernel/audit.c | 63 -
arch/ia64/kernel/brl_emu.c | 217 --
arch/ia64/kernel/crash.c | 266 ---
arch/ia64/kernel/crash_dump.c | 27 -
arch/ia64/kernel/cyclone.c | 125 --
arch/ia64/kernel/dma-mapping.c | 9 -
arch/ia64/kernel/efi.c | 1360 ------------
arch/ia64/kernel/efi_stub.S | 87 -
arch/ia64/kernel/elfcore.c | 77 -
arch/ia64/kernel/entry.S | 1428 ------------
arch/ia64/kernel/entry.h | 83 -
arch/ia64/kernel/err_inject.c | 273 ---
arch/ia64/kernel/esi.c | 193 --
arch/ia64/kernel/esi_stub.S | 99 -
arch/ia64/kernel/fsys.S | 837 -------
arch/ia64/kernel/fsyscall_gtod_data.h | 30 -
arch/ia64/kernel/ftrace.c | 196 --
arch/ia64/kernel/gate-data.S | 3 -
arch/ia64/kernel/gate.S | 380 ----
arch/ia64/kernel/gate.lds.S | 108 -
arch/ia64/kernel/head.S | 1168 ----------
arch/ia64/kernel/iosapic.c | 1137 ----------
arch/ia64/kernel/irq.c | 181 --
arch/ia64/kernel/irq.h | 3 -
arch/ia64/kernel/irq_ia64.c | 645 ------
arch/ia64/kernel/irq_lsapic.c | 45 -
arch/ia64/kernel/ivt.S | 1689 --------------
arch/ia64/kernel/kprobes.c | 911 --------
arch/ia64/kernel/machine_kexec.c | 163 --
arch/ia64/kernel/mca.c | 2111 ------------------
arch/ia64/kernel/mca_asm.S | 1123 ----------
arch/ia64/kernel/mca_drv.c | 796 -------
arch/ia64/kernel/mca_drv.h | 123 --
arch/ia64/kernel/mca_drv_asm.S | 56 -
arch/ia64/kernel/minstate.h | 251 ---
arch/ia64/kernel/module.c | 955 --------
arch/ia64/kernel/msi_ia64.c | 198 --
arch/ia64/kernel/numa.c | 73 -
arch/ia64/kernel/pal.S | 306 ---
arch/ia64/kernel/palinfo.c | 942 --------
arch/ia64/kernel/patch.c | 237 --
arch/ia64/kernel/pci-dma.c | 33 -
arch/ia64/kernel/perfmon_itanium.h | 116 -
arch/ia64/kernel/process.c | 610 -----
arch/ia64/kernel/ptrace.c | 2012 -----------------
arch/ia64/kernel/relocate_kernel.S | 321 ---
arch/ia64/kernel/sal.c | 400 ----
arch/ia64/kernel/salinfo.c | 646 ------
arch/ia64/kernel/setup.c | 1082 ---------
arch/ia64/kernel/sigframe.h | 26 -
arch/ia64/kernel/signal.c | 412 ----
arch/ia64/kernel/smp.c | 335 ---
arch/ia64/kernel/smpboot.c | 839 -------
arch/ia64/kernel/stacktrace.c | 40 -
arch/ia64/kernel/sys_ia64.c | 197 --
arch/ia64/kernel/syscalls/Makefile | 32 -
arch/ia64/kernel/syscalls/syscall.tbl | 373 ----
arch/ia64/kernel/time.c | 462 ----
arch/ia64/kernel/topology.c | 410 ----
arch/ia64/kernel/traps.c | 612 ------
arch/ia64/kernel/unaligned.c | 1560 -------------
arch/ia64/kernel/uncached.c | 273 ---
arch/ia64/kernel/unwind.c | 2320 --------------------
arch/ia64/kernel/unwind_decoder.c | 460 ----
arch/ia64/kernel/unwind_i.h | 165 --
arch/ia64/kernel/vmlinux.lds.S | 225 --
arch/ia64/lib/Makefile | 48 -
arch/ia64/lib/checksum.c | 102 -
arch/ia64/lib/clear_page.S | 79 -
arch/ia64/lib/clear_user.S | 212 --
arch/ia64/lib/copy_page.S | 101 -
arch/ia64/lib/copy_page_mck.S | 188 --
arch/ia64/lib/copy_user.S | 613 ------
arch/ia64/lib/csum_partial_copy.c | 98 -
arch/ia64/lib/do_csum.S | 324 ---
arch/ia64/lib/flush.S | 120 -
arch/ia64/lib/idiv32.S | 86 -
arch/ia64/lib/idiv64.S | 83 -
arch/ia64/lib/io.c | 51 -
arch/ia64/lib/ip_fast_csum.S | 148 --
arch/ia64/lib/memcpy.S | 304 ---
arch/ia64/lib/memcpy_mck.S | 659 ------
arch/ia64/lib/memset.S | 365 ---
arch/ia64/lib/strlen.S | 195 --
arch/ia64/lib/strncpy_from_user.S | 47 -
arch/ia64/lib/strnlen_user.S | 48 -
arch/ia64/lib/xor.S | 181 --
arch/ia64/mm/Makefile | 11 -
arch/ia64/mm/contig.c | 208 --
arch/ia64/mm/discontig.c | 635 ------
arch/ia64/mm/extable.c | 24 -
arch/ia64/mm/fault.c | 272 ---
arch/ia64/mm/hugetlbpage.c | 186 --
arch/ia64/mm/init.c | 518 -----
arch/ia64/mm/ioremap.c | 123 --
arch/ia64/mm/numa.c | 80 -
arch/ia64/mm/tlb.c | 591 -----
arch/ia64/pci/Makefile | 5 -
arch/ia64/pci/fixup.c | 80 -
arch/ia64/pci/pci.c | 576 -----
arch/ia64/scripts/check-gas | 16 -
arch/ia64/scripts/check-gas-asm.S | 2 -
arch/ia64/scripts/check-model.c | 1 -
arch/ia64/scripts/check-segrel.S | 5 -
arch/ia64/scripts/check-segrel.lds | 13 -
arch/ia64/scripts/check-serialize.S | 2 -
arch/ia64/scripts/check-text-align.S | 7 -
arch/ia64/scripts/toolchain-flags | 54 -
arch/ia64/scripts/unwcheck.py | 65 -
arch/ia64/uv/Makefile | 12 -
arch/ia64/uv/kernel/Makefile | 12 -
arch/ia64/uv/kernel/setup.c | 120 -
drivers/acpi/Kconfig | 6 +-
drivers/acpi/numa/Kconfig | 4 +-
drivers/acpi/osl.c | 2 +-
drivers/char/Kconfig | 4 +-
drivers/char/Makefile | 1 -
drivers/char/agp/Kconfig | 16 +-
drivers/char/agp/Makefile | 2 -
drivers/char/agp/hp-agp.c | 550 -----
drivers/char/agp/i460-agp.c | 659 ------
drivers/char/hpet.c | 30 -
drivers/char/hw_random/Kconfig | 2 +-
drivers/char/mem.c | 12 -
drivers/char/mspec.c | 295 ---
drivers/cpufreq/Kconfig | 11 -
drivers/cpufreq/Makefile | 1 -
drivers/cpufreq/ia64-acpi-cpufreq.c | 353 ---
drivers/firmware/Kconfig | 24 -
drivers/firmware/Makefile | 1 -
drivers/firmware/efi/Kconfig | 6 +-
drivers/firmware/efi/efi.c | 13 +-
drivers/firmware/pcdp.c | 135 --
drivers/firmware/pcdp.h | 108 -
drivers/gpu/drm/drm_ioc32.c | 4 +-
drivers/input/serio/i8042.h | 2 +-
drivers/iommu/Kconfig | 4 +-
drivers/iommu/intel/Kconfig | 2 +-
drivers/media/cec/platform/Kconfig | 2 +-
drivers/misc/Kconfig | 2 +-
drivers/misc/sgi-gru/gru.h | 4 +-
drivers/misc/sgi-gru/gru_instructions.h | 12 +-
drivers/misc/sgi-gru/grufile.c | 72 -
drivers/misc/sgi-gru/gruhandles.c | 6 -
drivers/misc/sgi-gru/grumain.c | 4 -
drivers/misc/sgi-xp/xp.h | 2 +-
drivers/misc/sgi-xp/xp_uv.c | 24 -
drivers/misc/sgi-xp/xpc_main.c | 31 -
drivers/misc/sgi-xp/xpc_uv.c | 85 -
drivers/net/ethernet/broadcom/tg3.c | 2 +-
drivers/net/ethernet/brocade/bna/bnad.h | 1 -
drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c | 2 -
drivers/pci/vgaarb.c | 2 +-
drivers/tty/serial/8250/Kconfig | 2 +-
drivers/tty/vt/keyboard.c | 2 +-
drivers/video/fbdev/Kconfig | 2 +-
drivers/watchdog/Kconfig | 2 +-
fs/Kconfig | 2 +-
fs/afs/main.c | 2 -
fs/xfs/xfs_ioctl32.h | 2 +-
include/linux/acpi.h | 9 +-
include/linux/efi.h | 7 -
include/linux/mm.h | 2 -
include/linux/moduleparam.h | 2 +-
include/trace/events/mmflags.h | 2 +-
init/Kconfig | 2 +-
kernel/cpu.c | 3 -
kernel/fork.c | 2 +-
kernel/sched/core.c | 29 +-
kernel/sysctl.c | 9 -
lib/Kconfig.debug | 2 +-
lib/decompress_unxz.c | 3 -
lib/xz/Kconfig | 5 -
mm/mmap.c | 6 +-
scripts/headers_install.sh | 1 -
tools/arch/ia64/include/asm/barrier.h | 59 -
tools/arch/ia64/include/uapi/asm/bitsperlong.h | 9 -
tools/arch/ia64/include/uapi/asm/mman.h | 7 -
usr/include/Makefile | 6 -
362 files changed, 45 insertions(+), 65193 deletions(-)

diff --git a/Documentation/core-api/cpu_hotplug.rst b/Documentation/core-api/cpu_hotplug.rst
index f75778d374884810..67eab9742753e8f8 100644
--- a/Documentation/core-api/cpu_hotplug.rst
+++ b/Documentation/core-api/cpu_hotplug.rst
@@ -40,12 +40,6 @@ Command Line Switches
supplied here is lower than the number of physically available CPUs, then
those CPUs can not be brought online later.

-``additional_cpus=n``
- Use this to limit hotpluggable CPUs. This option sets
- ``cpu_possible_mask = cpu_present_mask + additional_cpus``
-
- This option is limited to the IA64 architecture.
-
``possible_cpus=n``
This option sets ``possible_cpus`` bits in ``cpu_possible_mask``.

diff --git a/Documentation/ia64/aliasing.rst b/Documentation/ia64/aliasing.rst
deleted file mode 100644
index 36a1e1d4842b8139..0000000000000000
diff --git a/Documentation/ia64/efirtc.rst b/Documentation/ia64/efirtc.rst
deleted file mode 100644
index fd832840830152b8..0000000000000000
diff --git a/Documentation/ia64/err_inject.rst b/Documentation/ia64/err_inject.rst
deleted file mode 100644
index 900f71e93a29c5ae..0000000000000000
diff --git a/Documentation/ia64/features.rst b/Documentation/ia64/features.rst
deleted file mode 100644
index d7226fdcf5f8c003..0000000000000000
diff --git a/Documentation/ia64/fsys.rst b/Documentation/ia64/fsys.rst
deleted file mode 100644
index a702d2cc94b6300e..0000000000000000
diff --git a/Documentation/ia64/ia64.rst b/Documentation/ia64/ia64.rst
deleted file mode 100644
index b725019a94927f72..0000000000000000
diff --git a/Documentation/ia64/index.rst b/Documentation/ia64/index.rst
deleted file mode 100644
index 761f2154dfa27a30..0000000000000000
diff --git a/Documentation/ia64/irq-redir.rst b/Documentation/ia64/irq-redir.rst
deleted file mode 100644
index 6bbbbe4f73efc487..0000000000000000
diff --git a/Documentation/ia64/mca.rst b/Documentation/ia64/mca.rst
deleted file mode 100644
index 08270bba44a44313..0000000000000000
diff --git a/Documentation/ia64/serial.rst b/Documentation/ia64/serial.rst
deleted file mode 100644
index 1de70c305a7911cd..0000000000000000
diff --git a/MAINTAINERS b/MAINTAINERS
index 39ff1a7176252700..b797093f60cd048f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9840,12 +9840,6 @@ F: Documentation/driver-api/i3c
F: drivers/i3c/
F: include/linux/i3c/

-IA64 (Itanium) PLATFORM
-L: [email protected]
-S: Orphan
-F: Documentation/ia64/
-F: arch/ia64/
-
IBM Operation Panel Input Driver
M: Eddie James <[email protected]>
L: [email protected]
@@ -15930,11 +15924,6 @@ L: [email protected]
S: Maintained
F: drivers/i2c/muxes/i2c-mux-pca9541.c

-PCDP - PRIMARY CONSOLE AND DEBUG PORT
-M: Khalid Aziz <[email protected]>
-S: Maintained
-F: drivers/firmware/pcdp.*
-
PCI DRIVER FOR AARDVARK (Marvell Armada 3700)
M: Thomas Petazzoni <[email protected]>
M: Pali Rohár <[email protected]>
diff --git a/arch/Kconfig b/arch/Kconfig
index 12e3ddabac9d3be0..774448a24c511f22 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -1036,7 +1036,6 @@ config HAVE_ARCH_COMPAT_MMAP_BASES
config PAGE_SIZE_LESS_THAN_64KB
def_bool y
depends on !ARM64_64K_PAGES
- depends on !IA64_PAGE_SIZE_64KB
depends on !PAGE_SIZE_64KB
depends on !PARISC_PAGE_SIZE_64KB
depends on PAGE_SIZE_LESS_THAN_256KB
diff --git a/arch/ia64/Kbuild b/arch/ia64/Kbuild
deleted file mode 100644
index e77cc76d228cdb8c..0000000000000000
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
deleted file mode 100644
index d7e4a24e8644cdec..0000000000000000
diff --git a/arch/ia64/Kconfig.debug b/arch/ia64/Kconfig.debug
deleted file mode 100644
index 2ce008e2d1644b84..0000000000000000
diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
deleted file mode 100644
index d553ab7022fe4088..0000000000000000
diff --git a/arch/ia64/configs/bigsur_defconfig b/arch/ia64/configs/bigsur_defconfig
deleted file mode 100644
index 3e1337aceb37154d..0000000000000000
diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig
deleted file mode 100644
index f8033bacea89e491..0000000000000000
diff --git a/arch/ia64/configs/gensparse_defconfig b/arch/ia64/configs/gensparse_defconfig
deleted file mode 100644
index ffebe6c503f5119c..0000000000000000
diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig
deleted file mode 100644
index 45f5d6e2da0afc6a..0000000000000000
diff --git a/arch/ia64/configs/zx1_defconfig b/arch/ia64/configs/zx1_defconfig
deleted file mode 100644
index ed104550d0d519a2..0000000000000000
diff --git a/arch/ia64/hp/common/Makefile b/arch/ia64/hp/common/Makefile
deleted file mode 100644
index 11a56ed3822905e0..0000000000000000
diff --git a/arch/ia64/hp/common/aml_nfw.c b/arch/ia64/hp/common/aml_nfw.c
deleted file mode 100644
index 901df49461a058fd..0000000000000000
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
deleted file mode 100644
index 8ad6946521d88d63..0000000000000000
diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
deleted file mode 100644
index f994c1daf9d424f1..0000000000000000
diff --git a/arch/ia64/include/asm/acenv.h b/arch/ia64/include/asm/acenv.h
deleted file mode 100644
index 9d673cd4c2ad1eaf..0000000000000000
diff --git a/arch/ia64/include/asm/acpi-ext.h b/arch/ia64/include/asm/acpi-ext.h
deleted file mode 100644
index eaa57583d1515a78..0000000000000000
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
deleted file mode 100644
index 87927eb824ccd9ed..0000000000000000
diff --git a/arch/ia64/include/asm/agp.h b/arch/ia64/include/asm/agp.h
deleted file mode 100644
index 0261507dc2649fce..0000000000000000
diff --git a/arch/ia64/include/asm/asm-offsets.h b/arch/ia64/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182ba51..0000000000000000
diff --git a/arch/ia64/include/asm/asm-prototypes.h b/arch/ia64/include/asm/asm-prototypes.h
deleted file mode 100644
index a96689447a74c62f..0000000000000000
diff --git a/arch/ia64/include/asm/asmmacro.h b/arch/ia64/include/asm/asmmacro.h
deleted file mode 100644
index 52619c517f099e54..0000000000000000
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
deleted file mode 100644
index 266c429b91372e93..0000000000000000
diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h
deleted file mode 100644
index 751cdd3534469da4..0000000000000000
diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h
deleted file mode 100644
index 1accb7842f588064..0000000000000000
diff --git a/arch/ia64/include/asm/bug.h b/arch/ia64/include/asm/bug.h
deleted file mode 100644
index 66b37a5327654f87..0000000000000000
diff --git a/arch/ia64/include/asm/bugs.h b/arch/ia64/include/asm/bugs.h
deleted file mode 100644
index 0d6b9bded56c6ba2..0000000000000000
diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h
deleted file mode 100644
index 2f1c70647068270f..0000000000000000
diff --git a/arch/ia64/include/asm/cacheflush.h b/arch/ia64/include/asm/cacheflush.h
deleted file mode 100644
index 708c0fa5d975e4d3..0000000000000000
diff --git a/arch/ia64/include/asm/checksum.h b/arch/ia64/include/asm/checksum.h
deleted file mode 100644
index f3026213aa32b9ef..0000000000000000
diff --git a/arch/ia64/include/asm/clocksource.h b/arch/ia64/include/asm/clocksource.h
deleted file mode 100644
index 71a517751afa80c3..0000000000000000
diff --git a/arch/ia64/include/asm/cmpxchg.h b/arch/ia64/include/asm/cmpxchg.h
deleted file mode 100644
index 94ef844298431ad0..0000000000000000
diff --git a/arch/ia64/include/asm/cpu.h b/arch/ia64/include/asm/cpu.h
deleted file mode 100644
index db125df9e0888228..0000000000000000
diff --git a/arch/ia64/include/asm/cputime.h b/arch/ia64/include/asm/cputime.h
deleted file mode 100644
index 7f28c3564d5d5080..0000000000000000
diff --git a/arch/ia64/include/asm/current.h b/arch/ia64/include/asm/current.h
deleted file mode 100644
index 86fbcc88dff2155b..0000000000000000
diff --git a/arch/ia64/include/asm/cyclone.h b/arch/ia64/include/asm/cyclone.h
deleted file mode 100644
index a481393647e9e32c..0000000000000000
diff --git a/arch/ia64/include/asm/delay.h b/arch/ia64/include/asm/delay.h
deleted file mode 100644
index 0227ac586107652c..0000000000000000
diff --git a/arch/ia64/include/asm/device.h b/arch/ia64/include/asm/device.h
deleted file mode 100644
index 918b198cd5bbe5ed..0000000000000000
diff --git a/arch/ia64/include/asm/div64.h b/arch/ia64/include/asm/div64.h
deleted file mode 100644
index 6cd978cefb2850be..0000000000000000
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
deleted file mode 100644
index a5d9d788eede1f1d..0000000000000000
diff --git a/arch/ia64/include/asm/dma.h b/arch/ia64/include/asm/dma.h
deleted file mode 100644
index eaed2626ffdad3c6..0000000000000000
diff --git a/arch/ia64/include/asm/dmi.h b/arch/ia64/include/asm/dmi.h
deleted file mode 100644
index ecd9e0a0f5f98ee1..0000000000000000
diff --git a/arch/ia64/include/asm/early_ioremap.h b/arch/ia64/include/asm/early_ioremap.h
deleted file mode 100644
index 934191b1e2e3eaa4..0000000000000000
diff --git a/arch/ia64/include/asm/efi.h b/arch/ia64/include/asm/efi.h
deleted file mode 100644
index 6a4a50d8f19a50f7..0000000000000000
diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h
deleted file mode 100644
index 2ef5f9966ad18fe6..0000000000000000
diff --git a/arch/ia64/include/asm/emergency-restart.h b/arch/ia64/include/asm/emergency-restart.h
deleted file mode 100644
index 108d8c48e42e8697..0000000000000000
diff --git a/arch/ia64/include/asm/esi.h b/arch/ia64/include/asm/esi.h
deleted file mode 100644
index 56d1310af06e5489..0000000000000000
diff --git a/arch/ia64/include/asm/exception.h b/arch/ia64/include/asm/exception.h
deleted file mode 100644
index 1d5df8116a31268b..0000000000000000
diff --git a/arch/ia64/include/asm/export.h b/arch/ia64/include/asm/export.h
deleted file mode 100644
index ad18c65832520b84..0000000000000000
diff --git a/arch/ia64/include/asm/extable.h b/arch/ia64/include/asm/extable.h
deleted file mode 100644
index 83eac6aa06390146..0000000000000000
diff --git a/arch/ia64/include/asm/fb.h b/arch/ia64/include/asm/fb.h
deleted file mode 100644
index 5f95782bfa46d665..0000000000000000
diff --git a/arch/ia64/include/asm/fpswa.h b/arch/ia64/include/asm/fpswa.h
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deleted file mode 100644
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diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
deleted file mode 100644
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deleted file mode 100755
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diff --git a/arch/ia64/scripts/check-gas-asm.S b/arch/ia64/scripts/check-gas-asm.S
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deleted file mode 100644
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deleted file mode 100644
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diff --git a/arch/ia64/scripts/check-text-align.S b/arch/ia64/scripts/check-text-align.S
deleted file mode 100644
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deleted file mode 100755
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diff --git a/arch/ia64/scripts/unwcheck.py b/arch/ia64/scripts/unwcheck.py
deleted file mode 100644
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diff --git a/arch/ia64/uv/Makefile b/arch/ia64/uv/Makefile
deleted file mode 100644
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diff --git a/arch/ia64/uv/kernel/Makefile b/arch/ia64/uv/kernel/Makefile
deleted file mode 100644
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diff --git a/arch/ia64/uv/kernel/setup.c b/arch/ia64/uv/kernel/setup.c
deleted file mode 100644
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diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index ccbeab9500ecb003..92c0bdadf5283659 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -257,7 +257,7 @@ config ACPI_CPU_FREQ_PSS
config ACPI_PROCESSOR_CSTATE
def_bool y
depends on ACPI_PROCESSOR
- depends on IA64 || X86
+ depends on X86

config ACPI_PROCESSOR_IDLE
bool
@@ -281,9 +281,9 @@ config ACPI_CPPC_LIB

config ACPI_PROCESSOR
tristate "Processor"
- depends on X86 || IA64 || ARM64 || LOONGARCH
+ depends on X86 || ARM64 || LOONGARCH
select ACPI_PROCESSOR_IDLE
- select ACPI_CPU_FREQ_PSS if X86 || IA64 || LOONGARCH
+ select ACPI_CPU_FREQ_PSS if X86 || LOONGARCH
select THERMAL
default y
help
diff --git a/drivers/acpi/numa/Kconfig b/drivers/acpi/numa/Kconfig
index 39b1f34c21dfd7a8..849c2bd820b93e90 100644
--- a/drivers/acpi/numa/Kconfig
+++ b/drivers/acpi/numa/Kconfig
@@ -2,8 +2,8 @@
config ACPI_NUMA
bool "NUMA support"
depends on NUMA
- depends on (X86 || IA64 || ARM64 || LOONGARCH)
- default y if IA64 || ARM64
+ depends on (X86 || ARM64 || LOONGARCH)
+ default y if ARM64

config ACPI_HMAT
bool "ACPI Heterogeneous Memory Attribute Table Support"
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 3269a888fb7a97a3..23bcb6d5cfeeb082 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -276,7 +276,7 @@ acpi_map_lookup_virt(void __iomem *virt, acpi_size size)
return NULL;
}

-#if defined(CONFIG_IA64) || defined(CONFIG_ARM64)
+#if defined(CONFIG_ARM64)
/* ioremap will take care of cache attributes */
#define should_use_kmap(pfn) 0
#else
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 30fe9848dac1c1dc..02189b4756d01937 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -349,7 +349,7 @@ config DEVPORT
device is similar to /dev/mem, but for I/O ports.

config HPET
- bool "HPET - High Precision Event Timer" if (X86 || IA64)
+ bool "HPET - High Precision Event Timer" if X86
default n
depends on ACPI
help
@@ -378,7 +378,7 @@ config HPET_MMAP_DEFAULT

config HANGCHECK_TIMER
tristate "Hangcheck timer"
- depends on X86 || IA64 || PPC64 || S390
+ depends on X86 || PPC64 || S390
help
The hangcheck-timer module detects when the system has gone
out to lunch past a certain margin. It can reboot the system
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 1b35d1724565ebfd..9f492f8a13acf71a 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -8,7 +8,6 @@ obj-$(CONFIG_TTY_PRINTK) += ttyprintk.o
obj-y += misc.o
obj-$(CONFIG_ATARI_DSP56K) += dsp56k.o
obj-$(CONFIG_VIRTIO_CONSOLE) += virtio_console.o
-obj-$(CONFIG_MSPEC) += mspec.o
obj-$(CONFIG_UV_MMTIMER) += uv_mmtimer.o
obj-$(CONFIG_IBM_BSR) += bsr.o

diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig
index 4f501e4842ab391d..c47eb7bf06d46b58 100644
--- a/drivers/char/agp/Kconfig
+++ b/drivers/char/agp/Kconfig
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
menuconfig AGP
tristate "/dev/agpgart (AGP Support)"
- depends on ALPHA || IA64 || PARISC || PPC || X86
+ depends on ALPHA || PARISC || PPC || X86
depends on PCI
help
AGP (Accelerated Graphics Port) is a bus system mainly used to
@@ -109,20 +109,6 @@ config AGP_VIA
This option gives you AGP support for the GLX component of
X on VIA MVP3/Apollo Pro chipsets.

-config AGP_I460
- tristate "Intel 460GX chipset support"
- depends on AGP && IA64
- help
- This option gives you AGP GART support for the Intel 460GX chipset
- for IA64 processors.
-
-config AGP_HP_ZX1
- tristate "HP ZX1 chipset AGP support"
- depends on AGP && IA64
- help
- This option gives you AGP GART support for the HP ZX1 chipset
- for IA64 processors.
-
config AGP_PARISC
tristate "HP Quicksilver AGP support"
depends on AGP && PARISC && 64BIT && IOMMU_SBA
diff --git a/drivers/char/agp/Makefile b/drivers/char/agp/Makefile
index 90ed8c789e4824fb..25834557e486538c 100644
--- a/drivers/char/agp/Makefile
+++ b/drivers/char/agp/Makefile
@@ -14,9 +14,7 @@ obj-$(CONFIG_AGP_AMD) += amd-k7-agp.o
obj-$(CONFIG_AGP_AMD64) += amd64-agp.o
obj-$(CONFIG_AGP_ALPHA_CORE) += alpha-agp.o
obj-$(CONFIG_AGP_EFFICEON) += efficeon-agp.o
-obj-$(CONFIG_AGP_HP_ZX1) += hp-agp.o
obj-$(CONFIG_AGP_PARISC) += parisc-agp.o
-obj-$(CONFIG_AGP_I460) += i460-agp.o
obj-$(CONFIG_AGP_INTEL) += intel-agp.o
obj-$(CONFIG_INTEL_GTT) += intel-gtt.o
obj-$(CONFIG_AGP_NVIDIA) += nvidia-agp.o
diff --git a/drivers/char/agp/hp-agp.c b/drivers/char/agp/hp-agp.c
deleted file mode 100644
index 84d9adbb62f6a7bb..0000000000000000
diff --git a/drivers/char/agp/i460-agp.c b/drivers/char/agp/i460-agp.c
deleted file mode 100644
index 15b240ea4848f1b8..0000000000000000
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index ee71376f174b70db..3b2159416e624a6a 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -64,25 +64,6 @@
static DEFINE_MUTEX(hpet_mutex); /* replaces BKL */
static u32 hpet_nhpet, hpet_max_freq = HPET_USER_FREQ;

-/* This clocksource driver currently only works on ia64 */
-#ifdef CONFIG_IA64
-static void __iomem *hpet_mctr;
-
-static u64 read_hpet(struct clocksource *cs)
-{
- return (u64)read_counter((void __iomem *)hpet_mctr);
-}
-
-static struct clocksource clocksource_hpet = {
- .name = "hpet",
- .rating = 250,
- .read = read_hpet,
- .mask = CLOCKSOURCE_MASK(64),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-static struct clocksource *hpet_clocksource;
-#endif
-
/* A lock for concurrent access by app and isr hpet activity. */
static DEFINE_SPINLOCK(hpet_lock);

@@ -907,17 +888,6 @@ int hpet_alloc(struct hpet_data *hdp)

hpetp->hp_delta = hpet_calibrate(hpetp);

-/* This clocksource driver currently only works on ia64 */
-#ifdef CONFIG_IA64
- if (!hpet_clocksource) {
- hpet_mctr = (void __iomem *)&hpetp->hp_hpet->hpet_mc;
- clocksource_hpet.archdata.fsys_mmio = hpet_mctr;
- clocksource_register_hz(&clocksource_hpet, hpetp->hp_tick_freq);
- hpetp->hp_clocksource = &clocksource_hpet;
- hpet_clocksource = &clocksource_hpet;
- }
-#endif
-
return 0;
}

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 3da8e85f8aae03c7..aa59b5c24c44c8df 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -37,7 +37,7 @@ config HW_RANDOM_TIMERIOMEM

config HW_RANDOM_INTEL
tristate "Intel HW Random Number Generator support"
- depends on (X86 || IA64) && PCI
+ depends on X86 && PCI
default HW_RANDOM
help
This driver provides kernel-side support for the Random Number
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 83bf2a4dcb57ed84..efd29fb5417e1fd3 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -31,10 +31,6 @@
#include <linux/uaccess.h>
#include <linux/security.h>

-#ifdef CONFIG_IA64
-# include <linux/efi.h>
-#endif
-
#define DEVMEM_MINOR 1
#define DEVPORT_MINOR 4

@@ -284,13 +280,6 @@ int __weak phys_mem_access_prot_allowed(struct file *file,
#ifdef pgprot_noncached
static int uncached_access(struct file *file, phys_addr_t addr)
{
-#if defined(CONFIG_IA64)
- /*
- * On ia64, we ignore O_DSYNC because we cannot tolerate memory
- * attribute aliases.
- */
- return !(efi_mem_attributes(addr) & EFI_MEMORY_WB);
-#else
/*
* Accessing memory above the top the kernel knows about or through a
* file pointer
@@ -299,7 +288,6 @@ static int uncached_access(struct file *file, phys_addr_t addr)
if (file->f_flags & O_DSYNC)
return 1;
return addr >= __pa(high_memory);
-#endif
}
#endif

diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c
deleted file mode 100644
index f8231e2e84beccec..0000000000000000
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index 2a84fc63371e2ea2..faaf36c2e9a62bb7 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -239,17 +239,6 @@ if PPC32 || PPC64
source "drivers/cpufreq/Kconfig.powerpc"
endif

-if IA64
-config IA64_ACPI_CPUFREQ
- tristate "ACPI Processor P-States driver"
- depends on ACPI_PROCESSOR
- help
- This driver adds a CPUFreq driver which utilizes the ACPI
- Processor Performance States.
-
- If in doubt, say N.
-endif
-
if MIPS
config BMIPS_CPUFREQ
tristate "BMIPS CPUfreq Driver"
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index 32a7029e25ed8103..12b5c8fd20eae57e 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -109,7 +109,6 @@ obj-$(CONFIG_POWERNV_CPUFREQ) += powernv-cpufreq.o
##################################################################################
# Other platform drivers
obj-$(CONFIG_BMIPS_CPUFREQ) += bmips-cpufreq.o
-obj-$(CONFIG_IA64_ACPI_CPUFREQ) += ia64-acpi-cpufreq.o
obj-$(CONFIG_LOONGSON2_CPUFREQ) += loongson2_cpufreq.o
obj-$(CONFIG_LOONGSON1_CPUFREQ) += loongson1-cpufreq.o
obj-$(CONFIG_SH_CPU_FREQ) += sh-cpufreq.o
diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
deleted file mode 100644
index c6bdc455517f856b..0000000000000000
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index b59e3041fd627585..a79579fea6f05ae5 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -77,30 +77,6 @@ config FIRMWARE_MEMMAP

See also Documentation/ABI/testing/sysfs-firmware-memmap.

-config EFI_PCDP
- bool "Console device selection via EFI PCDP or HCDP table"
- depends on ACPI && EFI && IA64
- default y if IA64
- help
- If your firmware supplies the PCDP table, and you want to
- automatically use the primary console device it describes
- as the Linux console, say Y here.
-
- If your firmware supplies the HCDP table, and you want to
- use the first serial port it describes as the Linux console,
- say Y here. If your EFI ConOut path contains only a UART
- device, it will become the console automatically. Otherwise,
- you must specify the "console=hcdp" kernel boot argument.
-
- Neither the PCDP nor the HCDP affects naming of serial devices,
- so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
- on how the driver discovers devices.
-
- You must also enable the appropriate drivers (serial, VGA, etc.)
-
- See DIG64_HCDPv20_042804.pdf available from
- <http://www.dig64.org/specifications/>
-
config DMIID
bool "Export DMI identification via sysfs to userspace"
depends on DMI
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index 28fcddcd688fc2fd..1d1eb671d805d099 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -8,7 +8,6 @@ obj-$(CONFIG_ARM_SDE_INTERFACE) += arm_sdei.o
obj-$(CONFIG_DMI) += dmi_scan.o
obj-$(CONFIG_DMI_SYSFS) += dmi-sysfs.o
obj-$(CONFIG_EDD) += edd.o
-obj-$(CONFIG_EFI_PCDP) += pcdp.o
obj-$(CONFIG_DMIID) += dmi-id.o
obj-$(CONFIG_INTEL_STRATIX10_SERVICE) += stratix10-svc.o
obj-$(CONFIG_INTEL_STRATIX10_RSU) += stratix10-rsu.o
diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig
index 043ca31c114ebf2a..923b07690cbf0061 100644
--- a/drivers/firmware/efi/Kconfig
+++ b/drivers/firmware/efi/Kconfig
@@ -4,7 +4,7 @@ menu "EFI (Extensible Firmware Interface) Support"

config EFI_ESRT
bool
- depends on EFI && !IA64
+ depends on EFI
default y

config EFI_VARS_PSTORE
@@ -123,7 +123,7 @@ config EFI_BOOTLOADER_CONTROL

config EFI_CAPSULE_LOADER
tristate "EFI capsule loader"
- depends on EFI && !IA64
+ depends on EFI
help
This option exposes a loader interface "/dev/efi_capsule_loader" for
users to load EFI capsules. This driver requires working runtime
@@ -224,7 +224,7 @@ config EFI_DISABLE_PCI_DMA

config EFI_EARLYCON
def_bool y
- depends on SERIAL_EARLYCON && !ARM && !IA64
+ depends on SERIAL_EARLYCON && !ARM
select FONT_SUPPORT
select ARCH_USE_MEMREMAP_PROT

diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 1e0b016fdc2b1217..b30d5c3e03a9e7a4 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -144,7 +144,7 @@ static ssize_t systab_show(struct kobject *kobj,
if (efi.smbios != EFI_INVALID_TABLE_ADDR)
str += sprintf(str, "SMBIOS=0x%lx\n", efi.smbios);

- if (IS_ENABLED(CONFIG_IA64) || IS_ENABLED(CONFIG_X86))
+ if (IS_ENABLED(CONFIG_X86))
str = efi_systab_show_arch(str);

return str - buf;
@@ -737,7 +737,6 @@ int __init efi_systab_check_header(const efi_table_hdr_t *systab_hdr,
return 0;
}

-#ifndef CONFIG_IA64
static const efi_char16_t *__init map_fw_vendor(unsigned long fw_vendor,
size_t size)
{
@@ -753,10 +752,6 @@ static void __init unmap_fw_vendor(const void *fw_vendor, size_t size)
{
early_memunmap((void *)fw_vendor, size);
}
-#else
-#define map_fw_vendor(p, s) __va(p)
-#define unmap_fw_vendor(v, s)
-#endif

void __init efi_systab_report_header(const efi_table_hdr_t *systab_hdr,
unsigned long fw_vendor)
@@ -853,11 +848,6 @@ char * __init efi_md_typeattr_format(char *buf, size_t size,
return buf;
}

-/*
- * IA64 has a funky EFI memory map that doesn't work the same way as
- * other architectures.
- */
-#ifndef CONFIG_IA64
/*
* efi_mem_attributes - lookup memmap attributes for physical address
* @phys_addr: the physical address to lookup
@@ -905,7 +895,6 @@ int efi_mem_type(unsigned long phys_addr)
}
return -EINVAL;
}
-#endif

int efi_status_to_err(efi_status_t status)
{
diff --git a/drivers/firmware/pcdp.c b/drivers/firmware/pcdp.c
deleted file mode 100644
index 715a45442d1cfe64..0000000000000000
diff --git a/drivers/firmware/pcdp.h b/drivers/firmware/pcdp.h
deleted file mode 100644
index e02540571c524c40..0000000000000000
diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
index 5d82891c32223e4d..4414d99e02ac658b 100644
--- a/drivers/gpu/drm/drm_ioc32.c
+++ b/drivers/gpu/drm/drm_ioc32.c
@@ -945,11 +945,11 @@ static struct {
DRM_IOCTL32_DEF(DRM_IOCTL_SG_ALLOC, compat_drm_sg_alloc),
DRM_IOCTL32_DEF(DRM_IOCTL_SG_FREE, compat_drm_sg_free),
#endif
-#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+#if defined(CONFIG_X86)
DRM_IOCTL32_DEF(DRM_IOCTL_UPDATE_DRAW, compat_drm_update_draw),
#endif
DRM_IOCTL32_DEF(DRM_IOCTL_WAIT_VBLANK, compat_drm_wait_vblank),
-#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+#if defined(CONFIG_X86)
DRM_IOCTL32_DEF(DRM_IOCTL_MODE_ADDFB2, compat_drm_mode_addfb2),
#endif
};
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
index adb5173372d3ee6d..5f61672d55b73aaa 100644
--- a/drivers/input/serio/i8042.h
+++ b/drivers/input/serio/i8042.h
@@ -19,7 +19,7 @@
#include "i8042-snirm.h"
#elif defined(CONFIG_SPARC)
#include "i8042-sparcio.h"
-#elif defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH)
+#elif defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
#include "i8042-acpipnpio.h"
#else
#include "i8042-io.h"
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 79707685d54a4f8f..013683ad7ecc9319 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -93,7 +93,7 @@ config IOMMU_DEBUGFS
choice
prompt "IOMMU default domain type"
depends on IOMMU_API
- default IOMMU_DEFAULT_DMA_LAZY if X86 || IA64
+ default IOMMU_DEFAULT_DMA_LAZY if X86
default IOMMU_DEFAULT_DMA_STRICT
help
Choose the type of IOMMU domain used to manage DMA API usage by
@@ -148,7 +148,7 @@ config OF_IOMMU

# IOMMU-agnostic DMA-mapping layer
config IOMMU_DMA
- def_bool ARM64 || IA64 || X86
+ def_bool ARM64 || X86
select DMA_OPS
select IOMMU_API
select IOMMU_IOVA
diff --git a/drivers/iommu/intel/Kconfig b/drivers/iommu/intel/Kconfig
index b7dff5092fd21c06..44205ffdcb5cc149 100644
--- a/drivers/iommu/intel/Kconfig
+++ b/drivers/iommu/intel/Kconfig
@@ -11,7 +11,7 @@ config DMAR_DEBUG

config INTEL_IOMMU
bool "Support for Intel IOMMU using DMA Remapping Devices"
- depends on PCI_MSI && ACPI && (X86 || IA64)
+ depends on PCI_MSI && ACPI && X86
select DMA_OPS
select IOMMU_API
select IOMMU_IOVA
diff --git a/drivers/media/cec/platform/Kconfig b/drivers/media/cec/platform/Kconfig
index b672d3142eb795f4..ede81fe331b0de73 100644
--- a/drivers/media/cec/platform/Kconfig
+++ b/drivers/media/cec/platform/Kconfig
@@ -99,7 +99,7 @@ config CEC_TEGRA

config CEC_SECO
tristate "SECO Boards HDMI CEC driver"
- depends on (X86 || IA64) || COMPILE_TEST
+ depends on X86 || COMPILE_TEST
depends on PCI && DMI
select CEC_CORE
select CEC_NOTIFIER
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 9947b7892bd5af61..2573dd21d0aa77d4 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -166,7 +166,7 @@ config ENCLOSURE_SERVICES
config SGI_XP
tristate "Support communication between SGI SSIs"
depends on NET
- depends on (IA64_SGI_UV || X86_UV) && SMP
+ depends on X86_UV && SMP
depends on X86_64 || BROKEN
select SGI_GRU if X86_64 && SMP
help
diff --git a/drivers/misc/sgi-gru/gru.h b/drivers/misc/sgi-gru/gru.h
index 3ad76cd18b4bb41a..6ae045037219a339 100644
--- a/drivers/misc/sgi-gru/gru.h
+++ b/drivers/misc/sgi-gru/gru.h
@@ -30,9 +30,7 @@
/*
* Size used to map GRU GSeg
*/
-#if defined(CONFIG_IA64)
-#define GRU_GSEG_PAGESIZE (256 * 1024UL)
-#elif defined(CONFIG_X86_64)
+#if defined(CONFIG_X86_64)
#define GRU_GSEG_PAGESIZE (256 * 1024UL) /* ZZZ 2MB ??? */
#else
#error "Unsupported architecture"
diff --git a/drivers/misc/sgi-gru/gru_instructions.h b/drivers/misc/sgi-gru/gru_instructions.h
index 04d5170ac1497352..da5eb9edf9ecd6bd 100644
--- a/drivers/misc/sgi-gru/gru_instructions.h
+++ b/drivers/misc/sgi-gru/gru_instructions.h
@@ -29,17 +29,7 @@ extern void gru_wait_abort_proc(void *cb);
* Architecture dependent functions
*/

-#if defined(CONFIG_IA64)
-#include <linux/compiler.h>
-#include <asm/intrinsics.h>
-#define __flush_cache(p) ia64_fc((unsigned long)p)
-/* Use volatile on IA64 to ensure ordering via st4.rel */
-#define gru_ordered_store_ulong(p, v) \
- do { \
- barrier(); \
- *((volatile unsigned long *)(p)) = v; /* force st.rel */ \
- } while (0)
-#elif defined(CONFIG_X86_64)
+#if defined(CONFIG_X86_64)
#include <asm/cacheflush.h>
#define __flush_cache(p) clflush(p)
#define gru_ordered_store_ulong(p, v) \
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index 7ffcfc0bb58723fe..ab731678b0428b1f 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -337,72 +337,6 @@ static unsigned long gru_chiplet_cpu_to_mmr(int chiplet, int cpu, int *corep)
return mmr;
}

-#ifdef CONFIG_IA64
-
-static int gru_irq_count[GRU_CHIPLETS_PER_BLADE];
-
-static void gru_noop(struct irq_data *d)
-{
-}
-
-static struct irq_chip gru_chip[GRU_CHIPLETS_PER_BLADE] = {
- [0 ... GRU_CHIPLETS_PER_BLADE - 1] {
- .irq_mask = gru_noop,
- .irq_unmask = gru_noop,
- .irq_ack = gru_noop
- }
-};
-
-static int gru_chiplet_setup_tlb_irq(int chiplet, char *irq_name,
- irq_handler_t irq_handler, int cpu, int blade)
-{
- unsigned long mmr;
- int irq = IRQ_GRU + chiplet;
- int ret, core;
-
- mmr = gru_chiplet_cpu_to_mmr(chiplet, cpu, &core);
- if (mmr == 0)
- return 0;
-
- if (gru_irq_count[chiplet] == 0) {
- gru_chip[chiplet].name = irq_name;
- ret = irq_set_chip(irq, &gru_chip[chiplet]);
- if (ret) {
- printk(KERN_ERR "%s: set_irq_chip failed, errno=%d\n",
- GRU_DRIVER_ID_STR, -ret);
- return ret;
- }
-
- ret = request_irq(irq, irq_handler, 0, irq_name, NULL);
- if (ret) {
- printk(KERN_ERR "%s: request_irq failed, errno=%d\n",
- GRU_DRIVER_ID_STR, -ret);
- return ret;
- }
- }
- gru_irq_count[chiplet]++;
-
- return 0;
-}
-
-static void gru_chiplet_teardown_tlb_irq(int chiplet, int cpu, int blade)
-{
- unsigned long mmr;
- int core, irq = IRQ_GRU + chiplet;
-
- if (gru_irq_count[chiplet] == 0)
- return;
-
- mmr = gru_chiplet_cpu_to_mmr(chiplet, cpu, &core);
- if (mmr == 0)
- return;
-
- if (--gru_irq_count[chiplet] == 0)
- free_irq(irq, NULL);
-}
-
-#elif defined CONFIG_X86_64
-
static int gru_chiplet_setup_tlb_irq(int chiplet, char *irq_name,
irq_handler_t irq_handler, int cpu, int blade)
{
@@ -447,8 +381,6 @@ static void gru_chiplet_teardown_tlb_irq(int chiplet, int cpu, int blade)
}
}

-#endif
-
static void gru_teardown_tlb_irqs(void)
{
int blade;
@@ -514,12 +446,8 @@ static int __init gru_init(void)
if (!gru_supported())
return 0;

-#if defined CONFIG_IA64
- gru_start_paddr = 0xd000000000UL; /* ZZZZZZZZZZZZZZZZZZZ fixme */
-#else
gru_start_paddr = uv_read_local_mmr(UVH_RH_GAM_GRU_OVERLAY_CONFIG) &
0x7fffffffffffUL;
-#endif
gru_start_vaddr = __va(gru_start_paddr);
gru_end_paddr = gru_start_paddr + GRU_MAX_BLADES * GRU_SIZE;
printk(KERN_INFO "GRU space: 0x%lx - 0x%lx\n",
diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c
index 1d75d5e540bc992b..695316a83b01044f 100644
--- a/drivers/misc/sgi-gru/gruhandles.c
+++ b/drivers/misc/sgi-gru/gruhandles.c
@@ -11,16 +11,10 @@
#include "grutables.h"

/* 10 sec */
-#ifdef CONFIG_IA64
-#include <asm/processor.h>
-#define GRU_OPERATION_TIMEOUT (((cycles_t) local_cpu_data->itc_freq)*10)
-#define CLKS2NSEC(c) ((c) *1000000000 / local_cpu_data->itc_freq)
-#else
#include <linux/sync_core.h>
#include <asm/tsc.h>
#define GRU_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
#define CLKS2NSEC(c) ((c) * 1000000 / tsc_khz)
-#endif

/* Extract the status field from a kernel handle */
#define GET_MSEG_HANDLE_STATUS(h) (((*(unsigned long *)(h)) >> 16) & 3)
diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c
index 4eb4b94551390791..0f5b09e290c89981 100644
--- a/drivers/misc/sgi-gru/grumain.c
+++ b/drivers/misc/sgi-gru/grumain.c
@@ -41,16 +41,12 @@ struct device *grudev = &gru_device;
*/
int gru_cpu_fault_map_id(void)
{
-#ifdef CONFIG_IA64
- return uv_blade_processor_id() % GRU_NUM_TFM;
-#else
int cpu = smp_processor_id();
int id, core;

core = uv_cpu_core_number(cpu);
id = core + UV_MAX_INT_CORES * uv_cpu_socket_number(cpu);
return id;
-#endif
}

/*--------- ASID Management -------------------------------------------
diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h
index f1336f43d3bd13ee..3185711beb0780f2 100644
--- a/drivers/misc/sgi-xp/xp.h
+++ b/drivers/misc/sgi-xp/xp.h
@@ -16,7 +16,7 @@

#include <linux/mutex.h>

-#if defined CONFIG_X86_UV || defined CONFIG_IA64_SGI_UV
+#if defined CONFIG_X86_UV
#include <asm/uv/uv.h>
#endif

diff --git a/drivers/misc/sgi-xp/xp_uv.c b/drivers/misc/sgi-xp/xp_uv.c
index 19fc7076af274f74..3faa7eadf679e3c2 100644
--- a/drivers/misc/sgi-xp/xp_uv.c
+++ b/drivers/misc/sgi-xp/xp_uv.c
@@ -18,8 +18,6 @@
#include <asm/uv/uv_hub.h>
#if defined CONFIG_X86_64
#include <asm/uv/bios.h>
-#elif defined CONFIG_IA64_SGI_UV
-#include <asm/sn/sn_sal.h>
#endif
#include "../sgi-gru/grukservices.h"
#include "xp.h"
@@ -99,17 +97,6 @@ xp_expand_memprotect_uv(unsigned long phys_addr, unsigned long size)
"UV_MEMPROT_ALLOW_RW) failed, ret=%d\n", ret);
return xpBiosError;
}
-
-#elif defined CONFIG_IA64_SGI_UV
- u64 nasid_array;
-
- ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_1,
- &nasid_array);
- if (ret != 0) {
- dev_err(xp, "sn_change_memprotect(,, "
- "SN_MEMPROT_ACCESS_CLASS_1,) failed ret=%d\n", ret);
- return xpSalError;
- }
#else
#error not a supported configuration
#endif
@@ -129,17 +116,6 @@ xp_restrict_memprotect_uv(unsigned long phys_addr, unsigned long size)
"UV_MEMPROT_RESTRICT_ACCESS) failed, ret=%d\n", ret);
return xpBiosError;
}
-
-#elif defined CONFIG_IA64_SGI_UV
- u64 nasid_array;
-
- ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_0,
- &nasid_array);
- if (ret != 0) {
- dev_err(xp, "sn_change_memprotect(,, "
- "SN_MEMPROT_ACCESS_CLASS_0,) failed ret=%d\n", ret);
- return xpSalError;
- }
#else
#error not a supported configuration
#endif
diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
index b2c3c22fc13c1361..ea540b03a0f6e9b8 100644
--- a/drivers/misc/sgi-xp/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -1162,36 +1162,6 @@ xpc_die_deactivate(void)
static int
xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
{
-#ifdef CONFIG_IA64 /* !!! temporary kludge */
- switch (event) {
- case DIE_MACHINE_RESTART:
- case DIE_MACHINE_HALT:
- xpc_die_deactivate();
- break;
-
- case DIE_KDEBUG_ENTER:
- /* Should lack of heartbeat be ignored by other partitions? */
- if (!xpc_kdebug_ignore)
- break;
-
- fallthrough;
- case DIE_MCA_MONARCH_ENTER:
- case DIE_INIT_MONARCH_ENTER:
- xpc_arch_ops.offline_heartbeat();
- break;
-
- case DIE_KDEBUG_LEAVE:
- /* Is lack of heartbeat being ignored by other partitions? */
- if (!xpc_kdebug_ignore)
- break;
-
- fallthrough;
- case DIE_MCA_MONARCH_LEAVE:
- case DIE_INIT_MONARCH_LEAVE:
- xpc_arch_ops.online_heartbeat();
- break;
- }
-#else
struct die_args *die_args = _die_args;

switch (event) {
@@ -1213,7 +1183,6 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
default:
xpc_die_deactivate();
}
-#endif

return NOTIFY_DONE;
}
diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
index fff522d347e33f31..2f03a7080d965235 100644
--- a/drivers/misc/sgi-xp/xpc_uv.c
+++ b/drivers/misc/sgi-xp/xpc_uv.c
@@ -24,34 +24,12 @@
#include <linux/slab.h>
#include <linux/numa.h>
#include <asm/uv/uv_hub.h>
-#if defined CONFIG_X86_64
#include <asm/uv/bios.h>
#include <asm/uv/uv_irq.h>
-#elif defined CONFIG_IA64_SGI_UV
-#include <asm/sn/intr.h>
-#include <asm/sn/sn_sal.h>
-#endif
#include "../sgi-gru/gru.h"
#include "../sgi-gru/grukservices.h"
#include "xpc.h"

-#if defined CONFIG_IA64_SGI_UV
-struct uv_IO_APIC_route_entry {
- __u64 vector : 8,
- delivery_mode : 3,
- dest_mode : 1,
- delivery_status : 1,
- polarity : 1,
- __reserved_1 : 1,
- trigger : 1,
- mask : 1,
- __reserved_2 : 15,
- dest : 32;
-};
-
-#define sn_partition_id 0
-#endif
-
static struct xpc_heartbeat_uv *xpc_heartbeat_uv;

#define XPC_ACTIVATE_MSG_SIZE_UV (1 * GRU_CACHE_LINE_BYTES)
@@ -113,7 +91,6 @@ xpc_get_gru_mq_irq_uv(struct xpc_gru_mq_uv *mq, int cpu, char *irq_name)
{
int mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);

-#if defined CONFIG_X86_64
mq->irq = uv_setup_irq(irq_name, cpu, mq->mmr_blade, mq->mmr_offset,
UV_AFFINITY_CPU);
if (mq->irq < 0)
@@ -121,40 +98,13 @@ xpc_get_gru_mq_irq_uv(struct xpc_gru_mq_uv *mq, int cpu, char *irq_name)

mq->mmr_value = uv_read_global_mmr64(mmr_pnode, mq->mmr_offset);

-#elif defined CONFIG_IA64_SGI_UV
- if (strcmp(irq_name, XPC_ACTIVATE_IRQ_NAME) == 0)
- mq->irq = SGI_XPC_ACTIVATE;
- else if (strcmp(irq_name, XPC_NOTIFY_IRQ_NAME) == 0)
- mq->irq = SGI_XPC_NOTIFY;
- else
- return -EINVAL;
-
- mq->mmr_value = (unsigned long)cpu_physical_id(cpu) << 32 | mq->irq;
- uv_write_global_mmr64(mmr_pnode, mq->mmr_offset, mq->mmr_value);
-#else
- #error not a supported configuration
-#endif
-
return 0;
}

static void
xpc_release_gru_mq_irq_uv(struct xpc_gru_mq_uv *mq)
{
-#if defined CONFIG_X86_64
uv_teardown_irq(mq->irq);
-
-#elif defined CONFIG_IA64_SGI_UV
- int mmr_pnode;
- unsigned long mmr_value;
-
- mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);
- mmr_value = 1UL << 16;
-
- uv_write_global_mmr64(mmr_pnode, mq->mmr_offset, mmr_value);
-#else
- #error not a supported configuration
-#endif
}

static int
@@ -162,17 +112,6 @@ xpc_gru_mq_watchlist_alloc_uv(struct xpc_gru_mq_uv *mq)
{
int ret;

-#if defined CONFIG_IA64_SGI_UV
- int mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);
-
- ret = sn_mq_watchlist_alloc(mmr_pnode, (void *)uv_gpa(mq->address),
- mq->order, &mq->mmr_offset);
- if (ret < 0) {
- dev_err(xpc_part, "sn_mq_watchlist_alloc() failed, ret=%d\n",
- ret);
- return -EBUSY;
- }
-#elif defined CONFIG_X86_64
ret = uv_bios_mq_watchlist_alloc(uv_gpa(mq->address),
mq->order, &mq->mmr_offset);
if (ret < 0) {
@@ -180,9 +119,6 @@ xpc_gru_mq_watchlist_alloc_uv(struct xpc_gru_mq_uv *mq)
"ret=%d\n", ret);
return ret;
}
-#else
- #error not a supported configuration
-#endif

mq->watchlist_num = ret;
return 0;
@@ -194,15 +130,8 @@ xpc_gru_mq_watchlist_free_uv(struct xpc_gru_mq_uv *mq)
int ret;
int mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);

-#if defined CONFIG_X86_64
ret = uv_bios_mq_watchlist_free(mmr_pnode, mq->watchlist_num);
BUG_ON(ret != BIOS_STATUS_SUCCESS);
-#elif defined CONFIG_IA64_SGI_UV
- ret = sn_mq_watchlist_free(mmr_pnode, mq->watchlist_num);
- BUG_ON(ret != SALRET_OK);
-#else
- #error not a supported configuration
-#endif
}

static struct xpc_gru_mq_uv *
@@ -786,7 +715,6 @@ xpc_get_partition_rsvd_page_pa_uv(void *buf, u64 *cookie, unsigned long *rp_pa,
s64 status;
enum xp_retval ret;

-#if defined CONFIG_X86_64
status = uv_bios_reserved_page_pa((u64)buf, cookie, (u64 *)rp_pa,
(u64 *)len);
if (status == BIOS_STATUS_SUCCESS)
@@ -796,19 +724,6 @@ xpc_get_partition_rsvd_page_pa_uv(void *buf, u64 *cookie, unsigned long *rp_pa,
else
ret = xpBiosError;

-#elif defined CONFIG_IA64_SGI_UV
- status = sn_partition_reserved_page_pa((u64)buf, cookie, rp_pa, len);
- if (status == SALRET_OK)
- ret = xpSuccess;
- else if (status == SALRET_MORE_PASSES)
- ret = xpNeedMoreInfo;
- else
- ret = xpSalError;
-
-#else
- #error not a supported configuration
-#endif
-
return ret;
}

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 58747292521d8199..f219878c4b79655c 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -17001,7 +17001,7 @@ static u32 tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
!tg3_flag(tp, PCI_EXPRESS))
goto out;

-#if defined(CONFIG_PPC64) || defined(CONFIG_IA64) || defined(CONFIG_PARISC)
+#if defined(CONFIG_PPC64) || defined(CONFIG_PARISC)
goal = BOUNDARY_MULTI_CACHELINE;
#else
#if defined(CONFIG_SPARC64) || defined(CONFIG_ALPHA)
diff --git a/drivers/net/ethernet/brocade/bna/bnad.h b/drivers/net/ethernet/brocade/bna/bnad.h
index 627a93ce38ab07dd..10b1e534030e628d 100644
--- a/drivers/net/ethernet/brocade/bna/bnad.h
+++ b/drivers/net/ethernet/brocade/bna/bnad.h
@@ -19,7 +19,6 @@
#include <linux/firmware.h>
#include <linux/if_vlan.h>

-/* Fix for IA64 */
#include <asm/checksum.h>
#include <net/ip6_checksum.h>

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index de8d54b23f738523..2e1b2d9c0f54cbfc 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -234,9 +234,7 @@ static int nx_set_dma_mask(struct netxen_adapter *adapter)
cmask = DMA_BIT_MASK(32);

if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
-#ifndef CONFIG_IA64
mask = DMA_BIT_MASK(35);
-#endif
} else {
mask = DMA_BIT_MASK(39);
cmask = mask;
diff --git a/drivers/pci/vgaarb.c b/drivers/pci/vgaarb.c
index f80b6ec88dc301e0..a9c2aa0ea5751dc7 100644
--- a/drivers/pci/vgaarb.c
+++ b/drivers/pci/vgaarb.c
@@ -545,7 +545,7 @@ EXPORT_SYMBOL(vga_put);

static bool vga_is_firmware_default(struct pci_dev *pdev)
{
-#if defined(CONFIG_X86) || defined(CONFIG_IA64)
+#if defined(CONFIG_X86)
u64 base = screen_info.lfb_base;
u64 size = screen_info.lfb_size;
u64 limit;
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index b0f62345bc846dcb..fc4acb9e323b6922 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -216,7 +216,7 @@ config SERIAL_8250_EXTENDED

config SERIAL_8250_MANY_PORTS
bool "Support more than 4 legacy serial ports"
- depends on SERIAL_8250_EXTENDED && !IA64
+ depends on SERIAL_8250_EXTENDED
help
Say Y here if you have dumb serial boards other than the four
standard COM 1/2/3/4 ports. This may happen if you have an AST
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index be8313cdbac360ac..218dae88ad575a0e 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -1273,7 +1273,7 @@ static void kbd_bh(struct tasklet_struct *unused)
}
}

-#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\
+#if defined(CONFIG_X86) || defined(CONFIG_ALPHA) ||\
defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\
defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\
(defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC))
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index b2bed599e6c6ea1c..834a2a615786d168 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -641,7 +641,7 @@ config FB_VESA

config FB_EFI
bool "EFI-based Framebuffer Support"
- depends on (FB = y) && !IA64 && EFI
+ depends on (FB = y) && EFI
select APERTURE_HELPERS
select DRM_PANEL_ORIENTATION_QUIRKS
select FB_CFB_FILLRECT
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 0bc40b763b065210..fe51fb2bd4947c42 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1268,7 +1268,7 @@ config INTEL_MID_WATCHDOG

config ITCO_WDT
tristate "Intel TCO Timer/Watchdog"
- depends on (X86 || IA64) && PCI
+ depends on X86 && PCI
select WATCHDOG_CORE
depends on I2C || I2C=n
depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
diff --git a/fs/Kconfig b/fs/Kconfig
index 2685a4d0d353188b..11f5dd246fce4a68 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -234,7 +234,7 @@ config ARCH_SUPPORTS_HUGETLBFS

config HUGETLBFS
bool "HugeTLB file system support"
- depends on X86 || IA64 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN
+ depends on X86 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN
depends on (SYSFS || SYSCTL)
help
hugetlbfs is a filesystem backing for HugeTLB pages, based on
diff --git a/fs/afs/main.c b/fs/afs/main.c
index eae288c8d40a3b28..6425c81d07deac4d 100644
--- a/fs/afs/main.c
+++ b/fs/afs/main.c
@@ -41,8 +41,6 @@ const char afs_init_sysname[] = "arm_linux26";
const char afs_init_sysname[] = "aarch64_linux26";
#elif defined(CONFIG_X86_32)
const char afs_init_sysname[] = "i386_linux26";
-#elif defined(CONFIG_IA64)
-const char afs_init_sysname[] = "ia64_linux26";
#elif defined(CONFIG_PPC64)
const char afs_init_sysname[] = "ppc64_linux26";
#elif defined(CONFIG_PPC32)
diff --git a/fs/xfs/xfs_ioctl32.h b/fs/xfs/xfs_ioctl32.h
index c14852362fceab4f..052d0e888c273a3a 100644
--- a/fs/xfs/xfs_ioctl32.h
+++ b/fs/xfs/xfs_ioctl32.h
@@ -22,7 +22,7 @@
/*
* On intel, even if sizes match, alignment and/or padding may differ.
*/
-#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
+#if defined(CONFIG_X86_64)
#define BROKEN_X86_ALIGNMENT
#define __compat_packed __attribute__((packed))
#else
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 5e6a876e17ba0794..78753513bc5cb9a9 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -270,7 +270,7 @@ void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
/* the following numa functions are architecture-dependent */
void acpi_numa_slit_init (struct acpi_table_slit *slit);

-#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH)
+#if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
#else
static inline void
@@ -1090,15 +1090,8 @@ struct acpi_s2idle_dev_ops {
int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);
#endif /* CONFIG_X86 */
-#ifndef CONFIG_IA64
void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
#else
-static inline void arch_reserve_mem_area(acpi_physical_address addr,
- size_t size)
-{
-}
-#endif /* CONFIG_X86 */
-#else
#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
#endif

diff --git a/include/linux/efi.h b/include/linux/efi.h
index 98598bd1d2fa5208..bdc77cc74b1accf4 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -356,13 +356,10 @@ void efi_native_runtime_setup(void);
* where the UEFI SPEC breaks the line.
*/
#define NULL_GUID EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
-#define MPS_TABLE_GUID EFI_GUID(0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
#define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
#define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81)
#define SMBIOS_TABLE_GUID EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
#define SMBIOS3_TABLE_GUID EFI_GUID(0xf2fd1544, 0x9794, 0x4a2c, 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94)
-#define SAL_SYSTEM_TABLE_GUID EFI_GUID(0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
-#define HCDP_TABLE_GUID EFI_GUID(0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98)
#define UGA_IO_PROTOCOL_GUID EFI_GUID(0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0x0b, 0x07, 0xa2)
#define EFI_GLOBAL_VARIABLE_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)
#define UV_SYSTEM_TABLE_GUID EFI_GUID(0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93)
@@ -831,10 +828,6 @@ static inline int efi_range_is_wc(unsigned long start, unsigned long len)
return 1;
}

-#ifdef CONFIG_EFI_PCDP
-extern int __init efi_setup_pcdp_console(char *);
-#endif
-
/*
* We play games with efi_enabled so that the compiler will, if
* possible, remove EFI-related code altogether.
diff --git a/include/linux/mm.h b/include/linux/mm.h
index f13f20258ce9893c..97e4b34381a38625 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -347,8 +347,6 @@ extern unsigned int kobjsize(const void *objp);
# define VM_SAO VM_ARCH_1 /* Strong Access Ordering (powerpc) */
#elif defined(CONFIG_PARISC)
# define VM_GROWSUP VM_ARCH_1
-#elif defined(CONFIG_IA64)
-# define VM_GROWSUP VM_ARCH_1
#elif defined(CONFIG_SPARC64)
# define VM_SPARC_ADI VM_ARCH_1 /* Uses ADI tag for access control */
# define VM_ARCH_CLEAR VM_SPARC_ADI
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 962cd41a2cb5aff1..99e4f1f718c705ce 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -276,7 +276,7 @@ struct kparam_array
read-only sections (which is part of respective UNIX ABI on these
platforms). So 'const' makes no sense and even causes compile failures
with some compilers. */
-#if defined(CONFIG_ALPHA) || defined(CONFIG_IA64) || defined(CONFIG_PPC64)
+#if defined(CONFIG_ALPHA) || defined(CONFIG_PPC64)
#define __moduleparam_const
#else
#define __moduleparam_const const
diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index 412b5a46374c036f..c00b48003f63d094 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -143,7 +143,7 @@ IF_HAVE_PG_SKIP_KASAN_POISON(PG_skip_kasan_poison, "skip_kasan_poison")
#define __VM_ARCH_SPECIFIC_1 {VM_PAT, "pat" }
#elif defined(CONFIG_PPC)
#define __VM_ARCH_SPECIFIC_1 {VM_SAO, "sao" }
-#elif defined(CONFIG_PARISC) || defined(CONFIG_IA64)
+#elif defined(CONFIG_PARISC)
#define __VM_ARCH_SPECIFIC_1 {VM_GROWSUP, "growsup" }
#elif !defined(CONFIG_MMU)
#define __VM_ARCH_SPECIFIC_1 {VM_MAPPED_COPY,"mappedcopy" }
diff --git a/init/Kconfig b/init/Kconfig
index 44e90b28a30f12e8..b62319d85b198fa7 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1775,7 +1775,7 @@ config KALLSYMS_ABSOLUTE_PERCPU
config KALLSYMS_BASE_RELATIVE
bool
depends on KALLSYMS
- default !IA64
+ default y
help
Instead of emitting them as absolute values in the native word size,
emit the symbol references in the kallsyms table as 32-bit entries,
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 6c0a92ca6bb59c2c..14eddcc4d654f7ef 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1423,9 +1423,6 @@ static int cpu_up(unsigned int cpu, enum cpuhp_state target)
if (!cpu_possible(cpu)) {
pr_err("can't online cpu %d because it is not configured as may-hotadd at boot time\n",
cpu);
-#if defined(CONFIG_IA64)
- pr_err("please check additional_cpus= boot parameter\n");
-#endif
return -EINVAL;
}

diff --git a/kernel/fork.c b/kernel/fork.c
index 9f7fe354189785c2..6a2475d1442f0966 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2914,7 +2914,7 @@ static inline bool clone3_stack_valid(struct kernel_clone_args *kargs)
if (!access_ok((void __user *)kargs->stack, kargs->stack_size))
return false;

-#if !defined(CONFIG_STACK_GROWSUP) && !defined(CONFIG_IA64)
+#if !defined(CONFIG_STACK_GROWSUP)
kargs->stack += kargs->stack_size;
#endif
}
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index e838feb6adc50460..285f5c3c92f13476 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -10144,9 +10144,9 @@ void normalize_rt_tasks(void)

#endif /* CONFIG_MAGIC_SYSRQ */

-#if defined(CONFIG_IA64) || defined(CONFIG_KGDB_KDB)
+#if defined(CONFIG_KGDB_KDB)
/*
- * These functions are only useful for the IA64 MCA handling, or kdb.
+ * These functions are only useful for kdb.
*
* They can only be called when the whole system has been
* stopped - every CPU needs to be quiescent, and no scheduling
@@ -10168,30 +10168,7 @@ struct task_struct *curr_task(int cpu)
return cpu_curr(cpu);
}

-#endif /* defined(CONFIG_IA64) || defined(CONFIG_KGDB_KDB) */
-
-#ifdef CONFIG_IA64
-/**
- * ia64_set_curr_task - set the current task for a given CPU.
- * @cpu: the processor in question.
- * @p: the task pointer to set.
- *
- * Description: This function must only be used when non-maskable interrupts
- * are serviced on a separate stack. It allows the architecture to switch the
- * notion of the current task on a CPU in a non-blocking manner. This function
- * must be called with all CPU's synchronized, and interrupts disabled, the
- * and caller must save the original value of the current task (see
- * curr_task() above) and restore that value before reenabling interrupts and
- * re-starting the system.
- *
- * ONLY VALID WHEN THE WHOLE SYSTEM IS STOPPED!
- */
-void ia64_set_curr_task(int cpu, struct task_struct *p)
-{
- cpu_curr(cpu) = p;
-}
-
-#endif
+#endif /* defined(CONFIG_KGDB_KDB) */

#ifdef CONFIG_CGROUP_SCHED
/* task_group_lock serializes the addition/removal of task groups */
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 137d4abe3eda11a6..a2ae4f9c5c218acd 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1961,15 +1961,6 @@ static struct ctl_table kern_table[] = {
.proc_handler = proc_dointvec,
},
#endif
-#ifdef CONFIG_IA64
- {
- .procname = "unaligned-dump-stack",
- .data = &unaligned_dump_stack,
- .maxlen = sizeof (int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
-#endif
#ifdef CONFIG_RT_MUTEXES
{
.procname = "max_lock_depth",
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 02ee440f7be36cab..b2b8163f1e5e3494 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -816,7 +816,7 @@ config DEBUG_KMEMLEAK_AUTO_SCAN

config DEBUG_STACK_USAGE
bool "Stack utilization instrumentation"
- depends on DEBUG_KERNEL && !IA64
+ depends on DEBUG_KERNEL
help
Enables the display of the minimum amount of free stack which each
task has ever had available in the sysrq-T and sysrq-P debug output.
diff --git a/lib/decompress_unxz.c b/lib/decompress_unxz.c
index 9f4262ee33a5b9cb..33017d1eb3683302 100644
--- a/lib/decompress_unxz.c
+++ b/lib/decompress_unxz.c
@@ -131,9 +131,6 @@
#ifdef CONFIG_ARM
# define XZ_DEC_ARM
#endif
-#ifdef CONFIG_IA64
-# define XZ_DEC_IA64
-#endif
#ifdef CONFIG_SPARC
# define XZ_DEC_SPARC
#endif
diff --git a/lib/xz/Kconfig b/lib/xz/Kconfig
index adce22ac18d660b1..aef086a6bf2f3d27 100644
--- a/lib/xz/Kconfig
+++ b/lib/xz/Kconfig
@@ -19,11 +19,6 @@ config XZ_DEC_POWERPC
default y
select XZ_DEC_BCJ

-config XZ_DEC_IA64
- bool "IA-64 BCJ filter decoder" if EXPERT
- default y
- select XZ_DEC_BCJ
-
config XZ_DEC_ARM
bool "ARM BCJ filter decoder" if EXPERT
default y
diff --git a/mm/mmap.c b/mm/mmap.c
index 425a9349e610825f..62d7bb74c6d0f74e 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1902,9 +1902,9 @@ static int acct_stack_growth(struct vm_area_struct *vma,
return 0;
}

-#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
+#if defined(CONFIG_STACK_GROWSUP)
/*
- * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
+ * PA-RISC uses this for its stack.
* vma is the last one with address > vma->vm_end. Have to extend vma.
*/
int expand_upwards(struct vm_area_struct *vma, unsigned long address)
@@ -1994,7 +1994,7 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
mas_destroy(&mas);
return error;
}
-#endif /* CONFIG_STACK_GROWSUP || CONFIG_IA64 */
+#endif /* CONFIG_STACK_GROWSUP */

/*
* vma is the first one with address < vma->vm_start. Have to extend vma.
diff --git a/scripts/headers_install.sh b/scripts/headers_install.sh
index 4041881746adef21..9c009558e7286983 100755
--- a/scripts/headers_install.sh
+++ b/scripts/headers_install.sh
@@ -76,7 +76,6 @@ arch/arc/include/uapi/asm/swab.h:CONFIG_ARC_HAS_SWAPE
arch/arm/include/uapi/asm/ptrace.h:CONFIG_CPU_ENDIAN_BE8
arch/hexagon/include/uapi/asm/ptrace.h:CONFIG_HEXAGON_ARCH_VERSION
arch/hexagon/include/uapi/asm/user.h:CONFIG_HEXAGON_ARCH_VERSION
-arch/ia64/include/uapi/asm/cmpxchg.h:CONFIG_IA64_DEBUG_CMPXCHG
arch/m68k/include/uapi/asm/ptrace.h:CONFIG_COLDFIRE
arch/nios2/include/uapi/asm/swab.h:CONFIG_NIOS2_CI_SWAB_NO
arch/nios2/include/uapi/asm/swab.h:CONFIG_NIOS2_CI_SWAB_SUPPORT
diff --git a/tools/arch/ia64/include/asm/barrier.h b/tools/arch/ia64/include/asm/barrier.h
deleted file mode 100644
index 6fffe56827134385..0000000000000000
diff --git a/tools/arch/ia64/include/uapi/asm/bitsperlong.h b/tools/arch/ia64/include/uapi/asm/bitsperlong.h
deleted file mode 100644
index 1146d55563db3773..0000000000000000
diff --git a/tools/arch/ia64/include/uapi/asm/mman.h b/tools/arch/ia64/include/uapi/asm/mman.h
deleted file mode 100644
index 2a19bb1db4ab6076..0000000000000000
diff --git a/usr/include/Makefile b/usr/include/Makefile
index 07796df0a295b960..338c81f1fcf310e0 100644
--- a/usr/include/Makefile
+++ b/usr/include/Makefile
@@ -59,12 +59,6 @@ ifeq ($(SRCARCH),arc)
no-header-test += linux/bpf_perf_event.h
endif

-ifeq ($(SRCARCH),ia64)
-no-header-test += asm/setup.h
-no-header-test += asm/sigcontext.h
-no-header-test += linux/if_bonding.h
-endif
-
ifeq ($(SRCARCH),powerpc)
no-header-test += linux/bpf_perf_event.h
endif
--
2.39.1

2023-02-15 10:17:23

by John Paul Adrian Glaubitz

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

Hello Ard!

On Wed, 2023-02-15 at 11:00 +0100, Ard Biesheuvel wrote:
> The IA64 port of Linux has no maintainer, and according to a report from
> its only remaining user [0], it has been broken for a month and nobody
> cares.

It's not that I don't care. I just haven't been able to bisect the bug .yet

> Given that keeping a complex but unused architecture alive uses up
> valuable developer bandwidth, let's just get rid of it.
>
> This supersedes my patch proposing to mark it as 'dead', which received
> no replies from anyone that wants to keep it alive. [1]

I'm actually fine with marking it as dead. I forgot to ack.

Adrian

--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer
`. `' Physicist
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

2023-02-15 16:50:45

by Palmer Dabbelt

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

On Wed, 15 Feb 2023 02:00:03 PST (-0800), [email protected] wrote:
> The IA64 port of Linux has no maintainer, and according to a report from
> its only remaining user [0], it has been broken for a month and nobody
> cares.
>
> Given that keeping a complex but unused architecture alive uses up
> valuable developer bandwidth, let's just get rid of it.
>
> This supersedes my patch proposing to mark it as 'dead', which received
> no replies from anyone that wants to keep it alive. [1]
>
> [0] https://www.spinics.net/lists/linux-ia64/msg21926.html
> [1] https://lore.kernel.org/all/[email protected]/
>
> Cc: Jonathan Corbet <[email protected]>
> Cc: Arnd Bergmann <[email protected]>
> Cc: Tony Luck <[email protected]>
> Cc: Jessica Clarke <[email protected]>
> Cc: John Paul Adrian Glaubitz <[email protected]>
> Cc: Matthew Wilcox <[email protected]>
> Cc: Marc Zyngier <[email protected]>
> Cc: Guenter Roeck <[email protected]>
> Cc: Linus Torvalds <[email protected]>
> Cc: [email protected]
>
> Ard Biesheuvel (5):
> arch: Remove Itanium (IA-64) architecture
> kernel: Drop IA64 support from sig_fault handlers
> Documentation: Drop IA64 from feature descriptions
> lib/raid6: Drop IA64 support
> Documentation: Drop or replace remaining mentions of IA64

Not sure if I'm missing it in the diff, but it looks like there's also a
bunch of "#ifdef __ia64__" and "#ifdef __IA64__" type code spread
throughout the kernel. I didn't look at the actual diff, but it's in
files that aren't showing up in the diffstat.

Just "git grep -i __ia64__" lists a bunch. I didn't look at all of
them, but at least spot checking include/acpi/actypes.h looks like it's
a real Itanium workaround. If the arch goes, it's probbaly worth
removing those too?

There's also some mentions of "Itanium" in Documentation outside that
don't look like they got caught here. Not sure if they'd be worth
getting rid of, though as they could still be useful examples. The
blurb in Documentation/memory-barriers.txt looks pretty port-specific,
though.

> Documentation/ABI/testing/sysfs-devices-system-cpu | 3 -
> Documentation/ABI/testing/sysfs-firmware-dmi-entries | 2 +-
> Documentation/admin-guide/kdump/kdump.rst | 37 +-
> Documentation/admin-guide/kdump/vmcoreinfo.rst | 30 -
> Documentation/admin-guide/kernel-parameters.txt | 8 +-
> Documentation/admin-guide/mm/memory-hotplug.rst | 2 +-
> Documentation/admin-guide/sysctl/kernel.rst | 23 +-
> Documentation/arch.rst | 1 -
> Documentation/block/ioprio.rst | 3 -
> Documentation/core-api/cpu_hotplug.rst | 6 -
> Documentation/core-api/debugging-via-ohci1394.rst | 6 +-
> Documentation/features/core/cBPF-JIT/arch-support.txt | 1 -
> Documentation/features/core/eBPF-JIT/arch-support.txt | 1 -
> Documentation/features/core/generic-idle-thread/arch-support.txt | 1 -
> Documentation/features/core/jump-labels/arch-support.txt | 1 -
> Documentation/features/core/thread-info-in-task/arch-support.txt | 1 -
> Documentation/features/core/tracehook/arch-support.txt | 1 -
> Documentation/features/debug/KASAN/arch-support.txt | 1 -
> Documentation/features/debug/debug-vm-pgtable/arch-support.txt | 1 -
> Documentation/features/debug/gcov-profile-all/arch-support.txt | 1 -
> Documentation/features/debug/kcov/arch-support.txt | 1 -
> Documentation/features/debug/kgdb/arch-support.txt | 1 -
> Documentation/features/debug/kmemleak/arch-support.txt | 1 -
> Documentation/features/debug/kprobes-on-ftrace/arch-support.txt | 1 -
> Documentation/features/debug/kprobes/arch-support.txt | 1 -
> Documentation/features/debug/kretprobes/arch-support.txt | 1 -
> Documentation/features/debug/optprobes/arch-support.txt | 1 -
> Documentation/features/debug/stackprotector/arch-support.txt | 1 -
> Documentation/features/debug/uprobes/arch-support.txt | 1 -
> Documentation/features/debug/user-ret-profiler/arch-support.txt | 1 -
> Documentation/features/io/dma-contiguous/arch-support.txt | 1 -
> Documentation/features/locking/cmpxchg-local/arch-support.txt | 1 -
> Documentation/features/locking/lockdep/arch-support.txt | 1 -
> Documentation/features/locking/queued-rwlocks/arch-support.txt | 1 -
> Documentation/features/locking/queued-spinlocks/arch-support.txt | 1 -
> Documentation/features/perf/kprobes-event/arch-support.txt | 1 -
> Documentation/features/perf/perf-regs/arch-support.txt | 1 -
> Documentation/features/perf/perf-stackdump/arch-support.txt | 1 -
> Documentation/features/sched/membarrier-sync-core/arch-support.txt | 1 -
> Documentation/features/sched/numa-balancing/arch-support.txt | 1 -
> Documentation/features/seccomp/seccomp-filter/arch-support.txt | 1 -
> Documentation/features/time/arch-tick-broadcast/arch-support.txt | 1 -
> Documentation/features/time/clockevents/arch-support.txt | 1 -
> Documentation/features/time/context-tracking/arch-support.txt | 1 -
> Documentation/features/time/irq-time-acct/arch-support.txt | 1 -
> Documentation/features/time/virt-cpuacct/arch-support.txt | 1 -
> Documentation/features/vm/ELF-ASLR/arch-support.txt | 1 -
> Documentation/features/vm/PG_uncached/arch-support.txt | 1 -
> Documentation/features/vm/THP/arch-support.txt | 1 -
> Documentation/features/vm/TLB/arch-support.txt | 1 -
> Documentation/features/vm/huge-vmap/arch-support.txt | 1 -
> Documentation/features/vm/ioremap_prot/arch-support.txt | 1 -
> Documentation/features/vm/pte_special/arch-support.txt | 1 -
> Documentation/ia64/aliasing.rst | 246 ---
> Documentation/ia64/efirtc.rst | 144 --
> Documentation/ia64/err_inject.rst | 1067 ---------
> Documentation/ia64/features.rst | 3 -
> Documentation/ia64/fsys.rst | 303 ---
> Documentation/ia64/ia64.rst | 49 -
> Documentation/ia64/index.rst | 19 -
> Documentation/ia64/irq-redir.rst | 80 -
> Documentation/ia64/mca.rst | 198 --
> Documentation/ia64/serial.rst | 165 --
> Documentation/kbuild/makefiles.rst | 2 +-
> Documentation/networking/device_drivers/ethernet/neterion/s2io.rst | 4 +-
> Documentation/scheduler/sched-arch.rst | 4 +-
> Documentation/trace/kprobes.rst | 1 -
> Documentation/translations/zh_CN/arch.rst | 1 -
> Documentation/translations/zh_CN/core-api/cpu_hotplug.rst | 6 -
> Documentation/translations/zh_CN/scheduler/sched-arch.rst | 5 +-
> MAINTAINERS | 11 -
> Makefile | 4 +-
> arch/Kconfig | 1 -
> arch/ia64/Kbuild | 3 -
> arch/ia64/Kconfig | 410 ----
> arch/ia64/Kconfig.debug | 55 -
> arch/ia64/Makefile | 82 -
> arch/ia64/configs/bigsur_defconfig | 102 -
> arch/ia64/configs/generic_defconfig | 206 --
> arch/ia64/configs/gensparse_defconfig | 184 --
> arch/ia64/configs/tiger_defconfig | 169 --
> arch/ia64/configs/zx1_defconfig | 148 --
> arch/ia64/hp/common/Makefile | 10 -
> arch/ia64/hp/common/aml_nfw.c | 232 --
> arch/ia64/hp/common/sba_iommu.c | 2147 ------------------
> arch/ia64/include/asm/Kbuild | 5 -
> arch/ia64/include/asm/acenv.h | 49 -
> arch/ia64/include/asm/acpi-ext.h | 17 -
> arch/ia64/include/asm/acpi.h | 110 -
> arch/ia64/include/asm/agp.h | 27 -
> arch/ia64/include/asm/asm-offsets.h | 1 -
> arch/ia64/include/asm/asm-prototypes.h | 30 -
> arch/ia64/include/asm/asmmacro.h | 136 --
> arch/ia64/include/asm/atomic.h | 223 --
> arch/ia64/include/asm/barrier.h | 79 -
> arch/ia64/include/asm/bitops.h | 453 ----
> arch/ia64/include/asm/bug.h | 19 -
> arch/ia64/include/asm/bugs.h | 20 -
> arch/ia64/include/asm/cache.h | 30 -
> arch/ia64/include/asm/cacheflush.h | 33 -
> arch/ia64/include/asm/checksum.h | 63 -
> arch/ia64/include/asm/clocksource.h | 11 -
> arch/ia64/include/asm/cmpxchg.h | 16 -
> arch/ia64/include/asm/cpu.h | 23 -
> arch/ia64/include/asm/cputime.h | 21 -
> arch/ia64/include/asm/current.h | 18 -
> arch/ia64/include/asm/cyclone.h | 16 -
> arch/ia64/include/asm/delay.h | 89 -
> arch/ia64/include/asm/device.h | 14 -
> arch/ia64/include/asm/div64.h | 1 -
> arch/ia64/include/asm/dma-mapping.h | 16 -
> arch/ia64/include/asm/dma.h | 17 -
> arch/ia64/include/asm/dmi.h | 15 -
> arch/ia64/include/asm/early_ioremap.h | 11 -
> arch/ia64/include/asm/efi.h | 13 -
> arch/ia64/include/asm/elf.h | 233 --
> arch/ia64/include/asm/emergency-restart.h | 6 -
> arch/ia64/include/asm/esi.h | 30 -
> arch/ia64/include/asm/exception.h | 23 -
> arch/ia64/include/asm/export.h | 3 -
> arch/ia64/include/asm/extable.h | 12 -
> arch/ia64/include/asm/fb.h | 24 -
> arch/ia64/include/asm/fpswa.h | 74 -
> arch/ia64/include/asm/ftrace.h | 28 -
> arch/ia64/include/asm/futex.h | 109 -
> arch/ia64/include/asm/gcc_intrin.h | 13 -
> arch/ia64/include/asm/hardirq.h | 27 -
> arch/ia64/include/asm/hugetlb.h | 34 -
> arch/ia64/include/asm/hw_irq.h | 167 --
> arch/ia64/include/asm/idle.h | 8 -
> arch/ia64/include/asm/intrinsics.h | 13 -
> arch/ia64/include/asm/io.h | 274 ---
> arch/ia64/include/asm/iommu.h | 22 -
> arch/ia64/include/asm/iosapic.h | 106 -
> arch/ia64/include/asm/irq.h | 37 -
> arch/ia64/include/asm/irq_regs.h | 1 -
> arch/ia64/include/asm/irq_remapping.h | 5 -
> arch/ia64/include/asm/irqflags.h | 95 -
> arch/ia64/include/asm/kdebug.h | 45 -
> arch/ia64/include/asm/kexec.h | 46 -
> arch/ia64/include/asm/kprobes.h | 116 -
> arch/ia64/include/asm/kregs.h | 166 --
> arch/ia64/include/asm/libata-portmap.h | 9 -
> arch/ia64/include/asm/linkage.h | 19 -
> arch/ia64/include/asm/local.h | 1 -
> arch/ia64/include/asm/mca.h | 185 --
> arch/ia64/include/asm/mca_asm.h | 245 ---
> arch/ia64/include/asm/meminit.h | 59 -
> arch/ia64/include/asm/mman.h | 18 -
> arch/ia64/include/asm/mmiowb.h | 17 -
> arch/ia64/include/asm/mmu.h | 14 -
> arch/ia64/include/asm/mmu_context.h | 194 --
> arch/ia64/include/asm/mmzone.h | 35 -
> arch/ia64/include/asm/module.h | 35 -
> arch/ia64/include/asm/module.lds.h | 14 -
> arch/ia64/include/asm/msidef.h | 43 -
> arch/ia64/include/asm/native/inst.h | 119 -
> arch/ia64/include/asm/native/irq.h | 20 -
> arch/ia64/include/asm/native/patchlist.h | 24 -
> arch/ia64/include/asm/nodedata.h | 63 -
> arch/ia64/include/asm/numa.h | 83 -
> arch/ia64/include/asm/page.h | 214 --
> arch/ia64/include/asm/pal.h | 1827 ---------------
> arch/ia64/include/asm/param.h | 18 -
> arch/ia64/include/asm/parport.h | 20 -
> arch/ia64/include/asm/patch.h | 28 -
> arch/ia64/include/asm/pci.h | 66 -
> arch/ia64/include/asm/percpu.h | 53 -
> arch/ia64/include/asm/pgalloc.h | 64 -
> arch/ia64/include/asm/pgtable.h | 520 -----
> arch/ia64/include/asm/processor.h | 663 ------
> arch/ia64/include/asm/ptrace.h | 146 --
> arch/ia64/include/asm/sal.h | 919 --------
> arch/ia64/include/asm/sections.h | 33 -
> arch/ia64/include/asm/serial.h | 17 -
> arch/ia64/include/asm/shmparam.h | 13 -
> arch/ia64/include/asm/signal.h | 33 -
> arch/ia64/include/asm/smp.h | 103 -
> arch/ia64/include/asm/sn/intr.h | 15 -
> arch/ia64/include/asm/sn/sn_sal.h | 124 --
> arch/ia64/include/asm/sparsemem.h | 28 -
> arch/ia64/include/asm/spinlock.h | 265 ---
> arch/ia64/include/asm/spinlock_types.h | 22 -
> arch/ia64/include/asm/string.h | 22 -
> arch/ia64/include/asm/switch_to.h | 71 -
> arch/ia64/include/asm/syscall.h | 65 -
> arch/ia64/include/asm/thread_info.h | 131 --
> arch/ia64/include/asm/timex.h | 47 -
> arch/ia64/include/asm/tlb.h | 50 -
> arch/ia64/include/asm/tlbflush.h | 128 --
> arch/ia64/include/asm/topology.h | 56 -
> arch/ia64/include/asm/types.h | 32 -
> arch/ia64/include/asm/uaccess.h | 265 ---
> arch/ia64/include/asm/uncached.h | 9 -
> arch/ia64/include/asm/unistd.h | 38 -
> arch/ia64/include/asm/unwind.h | 234 --
> arch/ia64/include/asm/user.h | 53 -
> arch/ia64/include/asm/ustack.h | 12 -
> arch/ia64/include/asm/uv/uv.h | 30 -
> arch/ia64/include/asm/uv/uv_hub.h | 315 ---
> arch/ia64/include/asm/uv/uv_mmrs.h | 825 -------
> arch/ia64/include/asm/vermagic.h | 15 -
> arch/ia64/include/asm/vga.h | 26 -
> arch/ia64/include/asm/vmalloc.h | 4 -
> arch/ia64/include/asm/xor.h | 30 -
> arch/ia64/include/asm/xtp.h | 46 -
> arch/ia64/include/uapi/asm/Kbuild | 2 -
> arch/ia64/include/uapi/asm/auxvec.h | 14 -
> arch/ia64/include/uapi/asm/bitsperlong.h | 9 -
> arch/ia64/include/uapi/asm/break.h | 23 -
> arch/ia64/include/uapi/asm/byteorder.h | 7 -
> arch/ia64/include/uapi/asm/cmpxchg.h | 159 --
> arch/ia64/include/uapi/asm/fcntl.h | 15 -
> arch/ia64/include/uapi/asm/fpu.h | 67 -
> arch/ia64/include/uapi/asm/gcc_intrin.h | 619 ------
> arch/ia64/include/uapi/asm/ia64regs.h | 101 -
> arch/ia64/include/uapi/asm/intel_intrin.h | 162 --
> arch/ia64/include/uapi/asm/intrinsics.h | 86 -
> arch/ia64/include/uapi/asm/mman.h | 17 -
> arch/ia64/include/uapi/asm/param.h | 30 -
> arch/ia64/include/uapi/asm/posix_types.h | 9 -
> arch/ia64/include/uapi/asm/ptrace.h | 248 ---
> arch/ia64/include/uapi/asm/ptrace_offsets.h | 269 ---
> arch/ia64/include/uapi/asm/resource.h | 8 -
> arch/ia64/include/uapi/asm/rse.h | 67 -
> arch/ia64/include/uapi/asm/setup.h | 25 -
> arch/ia64/include/uapi/asm/sigcontext.h | 71 -
> arch/ia64/include/uapi/asm/siginfo.h | 28 -
> arch/ia64/include/uapi/asm/signal.h | 98 -
> arch/ia64/include/uapi/asm/stat.h | 52 -
> arch/ia64/include/uapi/asm/statfs.h | 21 -
> arch/ia64/include/uapi/asm/swab.h | 35 -
> arch/ia64/include/uapi/asm/types.h | 32 -
> arch/ia64/include/uapi/asm/ucontext.h | 13 -
> arch/ia64/include/uapi/asm/unistd.h | 22 -
> arch/ia64/include/uapi/asm/ustack.h | 13 -
> arch/ia64/install.sh | 30 -
> arch/ia64/kernel/.gitignore | 3 -
> arch/ia64/kernel/Makefile | 46 -
> arch/ia64/kernel/Makefile.gate | 29 -
> arch/ia64/kernel/acpi-ext.c | 101 -
> arch/ia64/kernel/acpi.c | 911 --------
> arch/ia64/kernel/asm-offsets.c | 289 ---
> arch/ia64/kernel/audit.c | 63 -
> arch/ia64/kernel/brl_emu.c | 217 --
> arch/ia64/kernel/crash.c | 266 ---
> arch/ia64/kernel/crash_dump.c | 27 -
> arch/ia64/kernel/cyclone.c | 125 --
> arch/ia64/kernel/dma-mapping.c | 9 -
> arch/ia64/kernel/efi.c | 1360 ------------
> arch/ia64/kernel/efi_stub.S | 87 -
> arch/ia64/kernel/elfcore.c | 77 -
> arch/ia64/kernel/entry.S | 1428 ------------
> arch/ia64/kernel/entry.h | 83 -
> arch/ia64/kernel/err_inject.c | 273 ---
> arch/ia64/kernel/esi.c | 193 --
> arch/ia64/kernel/esi_stub.S | 99 -
> arch/ia64/kernel/fsys.S | 837 -------
> arch/ia64/kernel/fsyscall_gtod_data.h | 30 -
> arch/ia64/kernel/ftrace.c | 196 --
> arch/ia64/kernel/gate-data.S | 3 -
> arch/ia64/kernel/gate.S | 380 ----
> arch/ia64/kernel/gate.lds.S | 108 -
> arch/ia64/kernel/head.S | 1168 ----------
> arch/ia64/kernel/iosapic.c | 1137 ----------
> arch/ia64/kernel/irq.c | 181 --
> arch/ia64/kernel/irq.h | 3 -
> arch/ia64/kernel/irq_ia64.c | 645 ------
> arch/ia64/kernel/irq_lsapic.c | 45 -
> arch/ia64/kernel/ivt.S | 1689 --------------
> arch/ia64/kernel/kprobes.c | 911 --------
> arch/ia64/kernel/machine_kexec.c | 163 --
> arch/ia64/kernel/mca.c | 2111 ------------------
> arch/ia64/kernel/mca_asm.S | 1123 ----------
> arch/ia64/kernel/mca_drv.c | 796 -------
> arch/ia64/kernel/mca_drv.h | 123 --
> arch/ia64/kernel/mca_drv_asm.S | 56 -
> arch/ia64/kernel/minstate.h | 251 ---
> arch/ia64/kernel/module.c | 955 --------
> arch/ia64/kernel/msi_ia64.c | 198 --
> arch/ia64/kernel/numa.c | 73 -
> arch/ia64/kernel/pal.S | 306 ---
> arch/ia64/kernel/palinfo.c | 942 --------
> arch/ia64/kernel/patch.c | 237 --
> arch/ia64/kernel/pci-dma.c | 33 -
> arch/ia64/kernel/perfmon_itanium.h | 116 -
> arch/ia64/kernel/process.c | 610 -----
> arch/ia64/kernel/ptrace.c | 2012 -----------------
> arch/ia64/kernel/relocate_kernel.S | 321 ---
> arch/ia64/kernel/sal.c | 400 ----
> arch/ia64/kernel/salinfo.c | 646 ------
> arch/ia64/kernel/setup.c | 1082 ---------
> arch/ia64/kernel/sigframe.h | 26 -
> arch/ia64/kernel/signal.c | 412 ----
> arch/ia64/kernel/smp.c | 335 ---
> arch/ia64/kernel/smpboot.c | 839 -------
> arch/ia64/kernel/stacktrace.c | 40 -
> arch/ia64/kernel/sys_ia64.c | 197 --
> arch/ia64/kernel/syscalls/Makefile | 32 -
> arch/ia64/kernel/syscalls/syscall.tbl | 373 ----
> arch/ia64/kernel/time.c | 462 ----
> arch/ia64/kernel/topology.c | 410 ----
> arch/ia64/kernel/traps.c | 612 ------
> arch/ia64/kernel/unaligned.c | 1560 -------------
> arch/ia64/kernel/uncached.c | 273 ---
> arch/ia64/kernel/unwind.c | 2320 --------------------
> arch/ia64/kernel/unwind_decoder.c | 460 ----
> arch/ia64/kernel/unwind_i.h | 165 --
> arch/ia64/kernel/vmlinux.lds.S | 225 --
> arch/ia64/lib/Makefile | 48 -
> arch/ia64/lib/checksum.c | 102 -
> arch/ia64/lib/clear_page.S | 79 -
> arch/ia64/lib/clear_user.S | 212 --
> arch/ia64/lib/copy_page.S | 101 -
> arch/ia64/lib/copy_page_mck.S | 188 --
> arch/ia64/lib/copy_user.S | 613 ------
> arch/ia64/lib/csum_partial_copy.c | 98 -
> arch/ia64/lib/do_csum.S | 324 ---
> arch/ia64/lib/flush.S | 120 -
> arch/ia64/lib/idiv32.S | 86 -
> arch/ia64/lib/idiv64.S | 83 -
> arch/ia64/lib/io.c | 51 -
> arch/ia64/lib/ip_fast_csum.S | 148 --
> arch/ia64/lib/memcpy.S | 304 ---
> arch/ia64/lib/memcpy_mck.S | 659 ------
> arch/ia64/lib/memset.S | 365 ---
> arch/ia64/lib/strlen.S | 195 --
> arch/ia64/lib/strncpy_from_user.S | 47 -
> arch/ia64/lib/strnlen_user.S | 48 -
> arch/ia64/lib/xor.S | 181 --
> arch/ia64/mm/Makefile | 11 -
> arch/ia64/mm/contig.c | 208 --
> arch/ia64/mm/discontig.c | 635 ------
> arch/ia64/mm/extable.c | 24 -
> arch/ia64/mm/fault.c | 272 ---
> arch/ia64/mm/hugetlbpage.c | 186 --
> arch/ia64/mm/init.c | 518 -----
> arch/ia64/mm/ioremap.c | 123 --
> arch/ia64/mm/numa.c | 80 -
> arch/ia64/mm/tlb.c | 591 -----
> arch/ia64/pci/Makefile | 5 -
> arch/ia64/pci/fixup.c | 80 -
> arch/ia64/pci/pci.c | 576 -----
> arch/ia64/scripts/check-gas | 16 -
> arch/ia64/scripts/check-gas-asm.S | 2 -
> arch/ia64/scripts/check-model.c | 1 -
> arch/ia64/scripts/check-segrel.S | 5 -
> arch/ia64/scripts/check-segrel.lds | 13 -
> arch/ia64/scripts/check-serialize.S | 2 -
> arch/ia64/scripts/check-text-align.S | 7 -
> arch/ia64/scripts/toolchain-flags | 54 -
> arch/ia64/scripts/unwcheck.py | 65 -
> arch/ia64/uv/Makefile | 12 -
> arch/ia64/uv/kernel/Makefile | 12 -
> arch/ia64/uv/kernel/setup.c | 120 -
> drivers/acpi/Kconfig | 6 +-
> drivers/acpi/numa/Kconfig | 4 +-
> drivers/acpi/osl.c | 2 +-
> drivers/char/Kconfig | 4 +-
> drivers/char/Makefile | 1 -
> drivers/char/agp/Kconfig | 16 +-
> drivers/char/agp/Makefile | 2 -
> drivers/char/agp/hp-agp.c | 550 -----
> drivers/char/agp/i460-agp.c | 659 ------
> drivers/char/hpet.c | 30 -
> drivers/char/hw_random/Kconfig | 2 +-
> drivers/char/mem.c | 12 -
> drivers/char/mspec.c | 295 ---
> drivers/cpufreq/Kconfig | 11 -
> drivers/cpufreq/Makefile | 1 -
> drivers/cpufreq/ia64-acpi-cpufreq.c | 353 ---
> drivers/firmware/Kconfig | 24 -
> drivers/firmware/Makefile | 1 -
> drivers/firmware/efi/Kconfig | 6 +-
> drivers/firmware/efi/efi.c | 13 +-
> drivers/firmware/pcdp.c | 135 --
> drivers/firmware/pcdp.h | 108 -
> drivers/gpu/drm/drm_ioc32.c | 4 +-
> drivers/input/serio/i8042.h | 2 +-
> drivers/iommu/Kconfig | 4 +-
> drivers/iommu/intel/Kconfig | 2 +-
> drivers/media/cec/platform/Kconfig | 2 +-
> drivers/misc/Kconfig | 2 +-
> drivers/misc/sgi-gru/gru.h | 4 +-
> drivers/misc/sgi-gru/gru_instructions.h | 12 +-
> drivers/misc/sgi-gru/grufile.c | 72 -
> drivers/misc/sgi-gru/gruhandles.c | 6 -
> drivers/misc/sgi-gru/grumain.c | 4 -
> drivers/misc/sgi-xp/xp.h | 2 +-
> drivers/misc/sgi-xp/xp_uv.c | 24 -
> drivers/misc/sgi-xp/xpc_main.c | 31 -
> drivers/misc/sgi-xp/xpc_uv.c | 85 -
> drivers/net/ethernet/broadcom/tg3.c | 2 +-
> drivers/net/ethernet/brocade/bna/bnad.h | 1 -
> drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c | 2 -
> drivers/pci/vgaarb.c | 2 +-
> drivers/tty/serial/8250/Kconfig | 2 +-
> drivers/tty/vt/keyboard.c | 2 +-
> drivers/video/fbdev/Kconfig | 2 +-
> drivers/watchdog/Kconfig | 2 +-
> fs/Kconfig | 2 +-
> fs/afs/main.c | 2 -
> fs/xfs/xfs_ioctl32.h | 2 +-
> include/linux/acpi.h | 9 +-
> include/linux/efi.h | 7 -
> include/linux/mm.h | 2 -
> include/linux/moduleparam.h | 2 +-
> include/linux/raid/pq.h | 2 -
> include/linux/sched/signal.h | 17 +-
> include/trace/events/mmflags.h | 2 +-
> init/Kconfig | 2 +-
> kernel/cpu.c | 3 -
> kernel/fork.c | 2 +-
> kernel/sched/core.c | 29 +-
> kernel/signal.c | 25 +-
> kernel/sysctl.c | 9 -
> lib/Kconfig.debug | 2 +-
> lib/decompress_unxz.c | 3 -
> lib/raid6/Makefile | 4 +-
> lib/raid6/algos.c | 4 -
> lib/xz/Kconfig | 5 -
> mm/mmap.c | 6 +-
> scripts/headers_install.sh | 1 -
> tools/arch/ia64/include/asm/barrier.h | 59 -
> tools/arch/ia64/include/uapi/asm/bitsperlong.h | 9 -
> tools/arch/ia64/include/uapi/asm/mman.h | 7 -
> usr/include/Makefile | 6 -
> 427 files changed, 74 insertions(+), 65400 deletions(-)
> delete mode 100644 Documentation/ia64/aliasing.rst
> delete mode 100644 Documentation/ia64/efirtc.rst
> delete mode 100644 Documentation/ia64/err_inject.rst
> delete mode 100644 Documentation/ia64/features.rst
> delete mode 100644 Documentation/ia64/fsys.rst
> delete mode 100644 Documentation/ia64/ia64.rst
> delete mode 100644 Documentation/ia64/index.rst
> delete mode 100644 Documentation/ia64/irq-redir.rst
> delete mode 100644 Documentation/ia64/mca.rst
> delete mode 100644 Documentation/ia64/serial.rst
> delete mode 100644 arch/ia64/Kbuild
> delete mode 100644 arch/ia64/Kconfig
> delete mode 100644 arch/ia64/Kconfig.debug
> delete mode 100644 arch/ia64/Makefile
> delete mode 100644 arch/ia64/configs/bigsur_defconfig
> delete mode 100644 arch/ia64/configs/generic_defconfig
> delete mode 100644 arch/ia64/configs/gensparse_defconfig
> delete mode 100644 arch/ia64/configs/tiger_defconfig
> delete mode 100644 arch/ia64/configs/zx1_defconfig
> delete mode 100644 arch/ia64/hp/common/Makefile
> delete mode 100644 arch/ia64/hp/common/aml_nfw.c
> delete mode 100644 arch/ia64/hp/common/sba_iommu.c
> delete mode 100644 arch/ia64/include/asm/Kbuild
> delete mode 100644 arch/ia64/include/asm/acenv.h
> delete mode 100644 arch/ia64/include/asm/acpi-ext.h
> delete mode 100644 arch/ia64/include/asm/acpi.h
> delete mode 100644 arch/ia64/include/asm/agp.h
> delete mode 100644 arch/ia64/include/asm/asm-offsets.h
> delete mode 100644 arch/ia64/include/asm/asm-prototypes.h
> delete mode 100644 arch/ia64/include/asm/asmmacro.h
> delete mode 100644 arch/ia64/include/asm/atomic.h
> delete mode 100644 arch/ia64/include/asm/barrier.h
> delete mode 100644 arch/ia64/include/asm/bitops.h
> delete mode 100644 arch/ia64/include/asm/bug.h
> delete mode 100644 arch/ia64/include/asm/bugs.h
> delete mode 100644 arch/ia64/include/asm/cache.h
> delete mode 100644 arch/ia64/include/asm/cacheflush.h
> delete mode 100644 arch/ia64/include/asm/checksum.h
> delete mode 100644 arch/ia64/include/asm/clocksource.h
> delete mode 100644 arch/ia64/include/asm/cmpxchg.h
> delete mode 100644 arch/ia64/include/asm/cpu.h
> delete mode 100644 arch/ia64/include/asm/cputime.h
> delete mode 100644 arch/ia64/include/asm/current.h
> delete mode 100644 arch/ia64/include/asm/cyclone.h
> delete mode 100644 arch/ia64/include/asm/delay.h
> delete mode 100644 arch/ia64/include/asm/device.h
> delete mode 100644 arch/ia64/include/asm/div64.h
> delete mode 100644 arch/ia64/include/asm/dma-mapping.h
> delete mode 100644 arch/ia64/include/asm/dma.h
> delete mode 100644 arch/ia64/include/asm/dmi.h
> delete mode 100644 arch/ia64/include/asm/early_ioremap.h
> delete mode 100644 arch/ia64/include/asm/efi.h
> delete mode 100644 arch/ia64/include/asm/elf.h
> delete mode 100644 arch/ia64/include/asm/emergency-restart.h
> delete mode 100644 arch/ia64/include/asm/esi.h
> delete mode 100644 arch/ia64/include/asm/exception.h
> delete mode 100644 arch/ia64/include/asm/export.h
> delete mode 100644 arch/ia64/include/asm/extable.h
> delete mode 100644 arch/ia64/include/asm/fb.h
> delete mode 100644 arch/ia64/include/asm/fpswa.h
> delete mode 100644 arch/ia64/include/asm/ftrace.h
> delete mode 100644 arch/ia64/include/asm/futex.h
> delete mode 100644 arch/ia64/include/asm/gcc_intrin.h
> delete mode 100644 arch/ia64/include/asm/hardirq.h
> delete mode 100644 arch/ia64/include/asm/hugetlb.h
> delete mode 100644 arch/ia64/include/asm/hw_irq.h
> delete mode 100644 arch/ia64/include/asm/idle.h
> delete mode 100644 arch/ia64/include/asm/intrinsics.h
> delete mode 100644 arch/ia64/include/asm/io.h
> delete mode 100644 arch/ia64/include/asm/iommu.h
> delete mode 100644 arch/ia64/include/asm/iosapic.h
> delete mode 100644 arch/ia64/include/asm/irq.h
> delete mode 100644 arch/ia64/include/asm/irq_regs.h
> delete mode 100644 arch/ia64/include/asm/irq_remapping.h
> delete mode 100644 arch/ia64/include/asm/irqflags.h
> delete mode 100644 arch/ia64/include/asm/kdebug.h
> delete mode 100644 arch/ia64/include/asm/kexec.h
> delete mode 100644 arch/ia64/include/asm/kprobes.h
> delete mode 100644 arch/ia64/include/asm/kregs.h
> delete mode 100644 arch/ia64/include/asm/libata-portmap.h
> delete mode 100644 arch/ia64/include/asm/linkage.h
> delete mode 100644 arch/ia64/include/asm/local.h
> delete mode 100644 arch/ia64/include/asm/mca.h
> delete mode 100644 arch/ia64/include/asm/mca_asm.h
> delete mode 100644 arch/ia64/include/asm/meminit.h
> delete mode 100644 arch/ia64/include/asm/mman.h
> delete mode 100644 arch/ia64/include/asm/mmiowb.h
> delete mode 100644 arch/ia64/include/asm/mmu.h
> delete mode 100644 arch/ia64/include/asm/mmu_context.h
> delete mode 100644 arch/ia64/include/asm/mmzone.h
> delete mode 100644 arch/ia64/include/asm/module.h
> delete mode 100644 arch/ia64/include/asm/module.lds.h
> delete mode 100644 arch/ia64/include/asm/msidef.h
> delete mode 100644 arch/ia64/include/asm/native/inst.h
> delete mode 100644 arch/ia64/include/asm/native/irq.h
> delete mode 100644 arch/ia64/include/asm/native/patchlist.h
> delete mode 100644 arch/ia64/include/asm/nodedata.h
> delete mode 100644 arch/ia64/include/asm/numa.h
> delete mode 100644 arch/ia64/include/asm/page.h
> delete mode 100644 arch/ia64/include/asm/pal.h
> delete mode 100644 arch/ia64/include/asm/param.h
> delete mode 100644 arch/ia64/include/asm/parport.h
> delete mode 100644 arch/ia64/include/asm/patch.h
> delete mode 100644 arch/ia64/include/asm/pci.h
> delete mode 100644 arch/ia64/include/asm/percpu.h
> delete mode 100644 arch/ia64/include/asm/pgalloc.h
> delete mode 100644 arch/ia64/include/asm/pgtable.h
> delete mode 100644 arch/ia64/include/asm/processor.h
> delete mode 100644 arch/ia64/include/asm/ptrace.h
> delete mode 100644 arch/ia64/include/asm/sal.h
> delete mode 100644 arch/ia64/include/asm/sections.h
> delete mode 100644 arch/ia64/include/asm/serial.h
> delete mode 100644 arch/ia64/include/asm/shmparam.h
> delete mode 100644 arch/ia64/include/asm/signal.h
> delete mode 100644 arch/ia64/include/asm/smp.h
> delete mode 100644 arch/ia64/include/asm/sn/intr.h
> delete mode 100644 arch/ia64/include/asm/sn/sn_sal.h
> delete mode 100644 arch/ia64/include/asm/sparsemem.h
> delete mode 100644 arch/ia64/include/asm/spinlock.h
> delete mode 100644 arch/ia64/include/asm/spinlock_types.h
> delete mode 100644 arch/ia64/include/asm/string.h
> delete mode 100644 arch/ia64/include/asm/switch_to.h
> delete mode 100644 arch/ia64/include/asm/syscall.h
> delete mode 100644 arch/ia64/include/asm/thread_info.h
> delete mode 100644 arch/ia64/include/asm/timex.h
> delete mode 100644 arch/ia64/include/asm/tlb.h
> delete mode 100644 arch/ia64/include/asm/tlbflush.h
> delete mode 100644 arch/ia64/include/asm/topology.h
> delete mode 100644 arch/ia64/include/asm/types.h
> delete mode 100644 arch/ia64/include/asm/uaccess.h
> delete mode 100644 arch/ia64/include/asm/uncached.h
> delete mode 100644 arch/ia64/include/asm/unistd.h
> delete mode 100644 arch/ia64/include/asm/unwind.h
> delete mode 100644 arch/ia64/include/asm/user.h
> delete mode 100644 arch/ia64/include/asm/ustack.h
> delete mode 100644 arch/ia64/include/asm/uv/uv.h
> delete mode 100644 arch/ia64/include/asm/uv/uv_hub.h
> delete mode 100644 arch/ia64/include/asm/uv/uv_mmrs.h
> delete mode 100644 arch/ia64/include/asm/vermagic.h
> delete mode 100644 arch/ia64/include/asm/vga.h
> delete mode 100644 arch/ia64/include/asm/vmalloc.h
> delete mode 100644 arch/ia64/include/asm/xor.h
> delete mode 100644 arch/ia64/include/asm/xtp.h
> delete mode 100644 arch/ia64/include/uapi/asm/Kbuild
> delete mode 100644 arch/ia64/include/uapi/asm/auxvec.h
> delete mode 100644 arch/ia64/include/uapi/asm/bitsperlong.h
> delete mode 100644 arch/ia64/include/uapi/asm/break.h
> delete mode 100644 arch/ia64/include/uapi/asm/byteorder.h
> delete mode 100644 arch/ia64/include/uapi/asm/cmpxchg.h
> delete mode 100644 arch/ia64/include/uapi/asm/fcntl.h
> delete mode 100644 arch/ia64/include/uapi/asm/fpu.h
> delete mode 100644 arch/ia64/include/uapi/asm/gcc_intrin.h
> delete mode 100644 arch/ia64/include/uapi/asm/ia64regs.h
> delete mode 100644 arch/ia64/include/uapi/asm/intel_intrin.h
> delete mode 100644 arch/ia64/include/uapi/asm/intrinsics.h
> delete mode 100644 arch/ia64/include/uapi/asm/mman.h
> delete mode 100644 arch/ia64/include/uapi/asm/param.h
> delete mode 100644 arch/ia64/include/uapi/asm/posix_types.h
> delete mode 100644 arch/ia64/include/uapi/asm/ptrace.h
> delete mode 100644 arch/ia64/include/uapi/asm/ptrace_offsets.h
> delete mode 100644 arch/ia64/include/uapi/asm/resource.h
> delete mode 100644 arch/ia64/include/uapi/asm/rse.h
> delete mode 100644 arch/ia64/include/uapi/asm/setup.h
> delete mode 100644 arch/ia64/include/uapi/asm/sigcontext.h
> delete mode 100644 arch/ia64/include/uapi/asm/siginfo.h
> delete mode 100644 arch/ia64/include/uapi/asm/signal.h
> delete mode 100644 arch/ia64/include/uapi/asm/stat.h
> delete mode 100644 arch/ia64/include/uapi/asm/statfs.h
> delete mode 100644 arch/ia64/include/uapi/asm/swab.h
> delete mode 100644 arch/ia64/include/uapi/asm/types.h
> delete mode 100644 arch/ia64/include/uapi/asm/ucontext.h
> delete mode 100644 arch/ia64/include/uapi/asm/unistd.h
> delete mode 100644 arch/ia64/include/uapi/asm/ustack.h
> delete mode 100755 arch/ia64/install.sh
> delete mode 100644 arch/ia64/kernel/.gitignore
> delete mode 100644 arch/ia64/kernel/Makefile
> delete mode 100644 arch/ia64/kernel/Makefile.gate
> delete mode 100644 arch/ia64/kernel/acpi-ext.c
> delete mode 100644 arch/ia64/kernel/acpi.c
> delete mode 100644 arch/ia64/kernel/asm-offsets.c
> delete mode 100644 arch/ia64/kernel/audit.c
> delete mode 100644 arch/ia64/kernel/brl_emu.c
> delete mode 100644 arch/ia64/kernel/crash.c
> delete mode 100644 arch/ia64/kernel/crash_dump.c
> delete mode 100644 arch/ia64/kernel/cyclone.c
> delete mode 100644 arch/ia64/kernel/dma-mapping.c
> delete mode 100644 arch/ia64/kernel/efi.c
> delete mode 100644 arch/ia64/kernel/efi_stub.S
> delete mode 100644 arch/ia64/kernel/elfcore.c
> delete mode 100644 arch/ia64/kernel/entry.S
> delete mode 100644 arch/ia64/kernel/entry.h
> delete mode 100644 arch/ia64/kernel/err_inject.c
> delete mode 100644 arch/ia64/kernel/esi.c
> delete mode 100644 arch/ia64/kernel/esi_stub.S
> delete mode 100644 arch/ia64/kernel/fsys.S
> delete mode 100644 arch/ia64/kernel/fsyscall_gtod_data.h
> delete mode 100644 arch/ia64/kernel/ftrace.c
> delete mode 100644 arch/ia64/kernel/gate-data.S
> delete mode 100644 arch/ia64/kernel/gate.S
> delete mode 100644 arch/ia64/kernel/gate.lds.S
> delete mode 100644 arch/ia64/kernel/head.S
> delete mode 100644 arch/ia64/kernel/iosapic.c
> delete mode 100644 arch/ia64/kernel/irq.c
> delete mode 100644 arch/ia64/kernel/irq.h
> delete mode 100644 arch/ia64/kernel/irq_ia64.c
> delete mode 100644 arch/ia64/kernel/irq_lsapic.c
> delete mode 100644 arch/ia64/kernel/ivt.S
> delete mode 100644 arch/ia64/kernel/kprobes.c
> delete mode 100644 arch/ia64/kernel/machine_kexec.c
> delete mode 100644 arch/ia64/kernel/mca.c
> delete mode 100644 arch/ia64/kernel/mca_asm.S
> delete mode 100644 arch/ia64/kernel/mca_drv.c
> delete mode 100644 arch/ia64/kernel/mca_drv.h
> delete mode 100644 arch/ia64/kernel/mca_drv_asm.S
> delete mode 100644 arch/ia64/kernel/minstate.h
> delete mode 100644 arch/ia64/kernel/module.c
> delete mode 100644 arch/ia64/kernel/msi_ia64.c
> delete mode 100644 arch/ia64/kernel/numa.c
> delete mode 100644 arch/ia64/kernel/pal.S
> delete mode 100644 arch/ia64/kernel/palinfo.c
> delete mode 100644 arch/ia64/kernel/patch.c
> delete mode 100644 arch/ia64/kernel/pci-dma.c
> delete mode 100644 arch/ia64/kernel/perfmon_itanium.h
> delete mode 100644 arch/ia64/kernel/process.c
> delete mode 100644 arch/ia64/kernel/ptrace.c
> delete mode 100644 arch/ia64/kernel/relocate_kernel.S
> delete mode 100644 arch/ia64/kernel/sal.c
> delete mode 100644 arch/ia64/kernel/salinfo.c
> delete mode 100644 arch/ia64/kernel/setup.c
> delete mode 100644 arch/ia64/kernel/sigframe.h
> delete mode 100644 arch/ia64/kernel/signal.c
> delete mode 100644 arch/ia64/kernel/smp.c
> delete mode 100644 arch/ia64/kernel/smpboot.c
> delete mode 100644 arch/ia64/kernel/stacktrace.c
> delete mode 100644 arch/ia64/kernel/sys_ia64.c
> delete mode 100644 arch/ia64/kernel/syscalls/Makefile
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> delete mode 100644 arch/ia64/kernel/time.c
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> delete mode 100644 arch/ia64/kernel/traps.c
> delete mode 100644 arch/ia64/kernel/unaligned.c
> delete mode 100644 arch/ia64/kernel/uncached.c
> delete mode 100644 arch/ia64/kernel/unwind.c
> delete mode 100644 arch/ia64/kernel/unwind_decoder.c
> delete mode 100644 arch/ia64/kernel/unwind_i.h
> delete mode 100644 arch/ia64/kernel/vmlinux.lds.S
> delete mode 100644 arch/ia64/lib/Makefile
> delete mode 100644 arch/ia64/lib/checksum.c
> delete mode 100644 arch/ia64/lib/clear_page.S
> delete mode 100644 arch/ia64/lib/clear_user.S
> delete mode 100644 arch/ia64/lib/copy_page.S
> delete mode 100644 arch/ia64/lib/copy_page_mck.S
> delete mode 100644 arch/ia64/lib/copy_user.S
> delete mode 100644 arch/ia64/lib/csum_partial_copy.c
> delete mode 100644 arch/ia64/lib/do_csum.S
> delete mode 100644 arch/ia64/lib/flush.S
> delete mode 100644 arch/ia64/lib/idiv32.S
> delete mode 100644 arch/ia64/lib/idiv64.S
> delete mode 100644 arch/ia64/lib/io.c
> delete mode 100644 arch/ia64/lib/ip_fast_csum.S
> delete mode 100644 arch/ia64/lib/memcpy.S
> delete mode 100644 arch/ia64/lib/memcpy_mck.S
> delete mode 100644 arch/ia64/lib/memset.S
> delete mode 100644 arch/ia64/lib/strlen.S
> delete mode 100644 arch/ia64/lib/strncpy_from_user.S
> delete mode 100644 arch/ia64/lib/strnlen_user.S
> delete mode 100644 arch/ia64/lib/xor.S
> delete mode 100644 arch/ia64/mm/Makefile
> delete mode 100644 arch/ia64/mm/contig.c
> delete mode 100644 arch/ia64/mm/discontig.c
> delete mode 100644 arch/ia64/mm/extable.c
> delete mode 100644 arch/ia64/mm/fault.c
> delete mode 100644 arch/ia64/mm/hugetlbpage.c
> delete mode 100644 arch/ia64/mm/init.c
> delete mode 100644 arch/ia64/mm/ioremap.c
> delete mode 100644 arch/ia64/mm/numa.c
> delete mode 100644 arch/ia64/mm/tlb.c
> delete mode 100644 arch/ia64/pci/Makefile
> delete mode 100644 arch/ia64/pci/fixup.c
> delete mode 100644 arch/ia64/pci/pci.c
> delete mode 100755 arch/ia64/scripts/check-gas
> delete mode 100644 arch/ia64/scripts/check-gas-asm.S
> delete mode 100644 arch/ia64/scripts/check-model.c
> delete mode 100644 arch/ia64/scripts/check-segrel.S
> delete mode 100644 arch/ia64/scripts/check-segrel.lds
> delete mode 100644 arch/ia64/scripts/check-serialize.S
> delete mode 100644 arch/ia64/scripts/check-text-align.S
> delete mode 100755 arch/ia64/scripts/toolchain-flags
> delete mode 100644 arch/ia64/scripts/unwcheck.py
> delete mode 100644 arch/ia64/uv/Makefile
> delete mode 100644 arch/ia64/uv/kernel/Makefile
> delete mode 100644 arch/ia64/uv/kernel/setup.c
> delete mode 100644 drivers/char/agp/hp-agp.c
> delete mode 100644 drivers/char/agp/i460-agp.c
> delete mode 100644 drivers/char/mspec.c
> delete mode 100644 drivers/cpufreq/ia64-acpi-cpufreq.c
> delete mode 100644 drivers/firmware/pcdp.c
> delete mode 100644 drivers/firmware/pcdp.h
> delete mode 100644 tools/arch/ia64/include/asm/barrier.h
> delete mode 100644 tools/arch/ia64/include/uapi/asm/bitsperlong.h
> delete mode 100644 tools/arch/ia64/include/uapi/asm/mman.h

2023-02-15 16:55:18

by Guenter Roeck

[permalink] [raw]

Subject: Re: [RFC PATCH 1/5] arch: Remove Itanium (IA-64) architecture

On Wed, Feb 15, 2023 at 11:00:04AM +0100, Ard Biesheuvel wrote:
> Itanium is the original architecture for which EFI was developed, and
> the way Linux supports it deviates significantly from other
> architectures.
>
> So it is anyone's guess whether the ongoing maintenance and developement
> of the EFI subsystem has regressed Itanium or not - QEMU no longer
> implements support for it, and so there is zero test coverage using
> actual hardware.
>
> Note that the Intel firmware team themselves already removed all IA-64
> support from the Tianocore/EDK2 reference implementation of EFI in 2018,
> so let's follow suit, and drop IA-64 from Linux as well.
>
> Acked-by: Tony Luck <[email protected]>
> Signed-off-by: Ard Biesheuvel <[email protected]>

Acked-by: Guenter Roeck <[email protected]>

> ---
> Documentation/core-api/cpu_hotplug.rst | 6 -
> Documentation/ia64/aliasing.rst | 246 ---
> Documentation/ia64/efirtc.rst | 144 --
> Documentation/ia64/err_inject.rst | 1067 ---------
> Documentation/ia64/features.rst | 3 -
> Documentation/ia64/fsys.rst | 303 ---
> Documentation/ia64/ia64.rst | 49 -
> Documentation/ia64/index.rst | 19 -
> Documentation/ia64/irq-redir.rst | 80 -
> Documentation/ia64/mca.rst | 198 --
> Documentation/ia64/serial.rst | 165 --
> MAINTAINERS | 11 -
> arch/Kconfig | 1 -
> arch/ia64/Kbuild | 3 -
> arch/ia64/Kconfig | 410 ----
> arch/ia64/Kconfig.debug | 55 -
> arch/ia64/Makefile | 82 -
> arch/ia64/configs/bigsur_defconfig | 102 -
> arch/ia64/configs/generic_defconfig | 206 --
> arch/ia64/configs/gensparse_defconfig | 184 --
> arch/ia64/configs/tiger_defconfig | 169 --
> arch/ia64/configs/zx1_defconfig | 148 --
> arch/ia64/hp/common/Makefile | 10 -
> arch/ia64/hp/common/aml_nfw.c | 232 --
> arch/ia64/hp/common/sba_iommu.c | 2147 ------------------
> arch/ia64/include/asm/Kbuild | 5 -
> arch/ia64/include/asm/acenv.h | 49 -
> arch/ia64/include/asm/acpi-ext.h | 17 -
> arch/ia64/include/asm/acpi.h | 110 -
> arch/ia64/include/asm/agp.h | 27 -
> arch/ia64/include/asm/asm-offsets.h | 1 -
> arch/ia64/include/asm/asm-prototypes.h | 30 -
> arch/ia64/include/asm/asmmacro.h | 136 --
> arch/ia64/include/asm/atomic.h | 223 --
> arch/ia64/include/asm/barrier.h | 79 -
> arch/ia64/include/asm/bitops.h | 453 ----
> arch/ia64/include/asm/bug.h | 19 -
> arch/ia64/include/asm/bugs.h | 20 -
> arch/ia64/include/asm/cache.h | 30 -
> arch/ia64/include/asm/cacheflush.h | 33 -
> arch/ia64/include/asm/checksum.h | 63 -
> arch/ia64/include/asm/clocksource.h | 11 -
> arch/ia64/include/asm/cmpxchg.h | 16 -
> arch/ia64/include/asm/cpu.h | 23 -
> arch/ia64/include/asm/cputime.h | 21 -
> arch/ia64/include/asm/current.h | 18 -
> arch/ia64/include/asm/cyclone.h | 16 -
> arch/ia64/include/asm/delay.h | 89 -
> arch/ia64/include/asm/device.h | 14 -
> arch/ia64/include/asm/div64.h | 1 -
> arch/ia64/include/asm/dma-mapping.h | 16 -
> arch/ia64/include/asm/dma.h | 17 -
> arch/ia64/include/asm/dmi.h | 15 -
> arch/ia64/include/asm/early_ioremap.h | 11 -
> arch/ia64/include/asm/efi.h | 13 -
> arch/ia64/include/asm/elf.h | 233 --
> arch/ia64/include/asm/emergency-restart.h | 6 -
> arch/ia64/include/asm/esi.h | 30 -
> arch/ia64/include/asm/exception.h | 23 -
> arch/ia64/include/asm/export.h | 3 -
> arch/ia64/include/asm/extable.h | 12 -
> arch/ia64/include/asm/fb.h | 24 -
> arch/ia64/include/asm/fpswa.h | 74 -
> arch/ia64/include/asm/ftrace.h | 28 -
> arch/ia64/include/asm/futex.h | 109 -
> arch/ia64/include/asm/gcc_intrin.h | 13 -
> arch/ia64/include/asm/hardirq.h | 27 -
> arch/ia64/include/asm/hugetlb.h | 34 -
> arch/ia64/include/asm/hw_irq.h | 167 --
> arch/ia64/include/asm/idle.h | 8 -
> arch/ia64/include/asm/intrinsics.h | 13 -
> arch/ia64/include/asm/io.h | 274 ---
> arch/ia64/include/asm/iommu.h | 22 -
> arch/ia64/include/asm/iosapic.h | 106 -
> arch/ia64/include/asm/irq.h | 37 -
> arch/ia64/include/asm/irq_regs.h | 1 -
> arch/ia64/include/asm/irq_remapping.h | 5 -
> arch/ia64/include/asm/irqflags.h | 95 -
> arch/ia64/include/asm/kdebug.h | 45 -
> arch/ia64/include/asm/kexec.h | 46 -
> arch/ia64/include/asm/kprobes.h | 116 -
> arch/ia64/include/asm/kregs.h | 166 --
> arch/ia64/include/asm/libata-portmap.h | 9 -
> arch/ia64/include/asm/linkage.h | 19 -
> arch/ia64/include/asm/local.h | 1 -
> arch/ia64/include/asm/mca.h | 185 --
> arch/ia64/include/asm/mca_asm.h | 245 ---
> arch/ia64/include/asm/meminit.h | 59 -
> arch/ia64/include/asm/mman.h | 18 -
> arch/ia64/include/asm/mmiowb.h | 17 -
> arch/ia64/include/asm/mmu.h | 14 -
> arch/ia64/include/asm/mmu_context.h | 194 --
> arch/ia64/include/asm/mmzone.h | 35 -
> arch/ia64/include/asm/module.h | 35 -
> arch/ia64/include/asm/module.lds.h | 14 -
> arch/ia64/include/asm/msidef.h | 43 -
> arch/ia64/include/asm/native/inst.h | 119 -
> arch/ia64/include/asm/native/irq.h | 20 -
> arch/ia64/include/asm/native/patchlist.h | 24 -
> arch/ia64/include/asm/nodedata.h | 63 -
> arch/ia64/include/asm/numa.h | 83 -
> arch/ia64/include/asm/page.h | 214 --
> arch/ia64/include/asm/pal.h | 1827 ---------------
> arch/ia64/include/asm/param.h | 18 -
> arch/ia64/include/asm/parport.h | 20 -
> arch/ia64/include/asm/patch.h | 28 -
> arch/ia64/include/asm/pci.h | 66 -
> arch/ia64/include/asm/percpu.h | 53 -
> arch/ia64/include/asm/pgalloc.h | 64 -
> arch/ia64/include/asm/pgtable.h | 520 -----
> arch/ia64/include/asm/processor.h | 663 ------
> arch/ia64/include/asm/ptrace.h | 146 --
> arch/ia64/include/asm/sal.h | 919 --------
> arch/ia64/include/asm/sections.h | 33 -
> arch/ia64/include/asm/serial.h | 17 -
> arch/ia64/include/asm/shmparam.h | 13 -
> arch/ia64/include/asm/signal.h | 33 -
> arch/ia64/include/asm/smp.h | 103 -
> arch/ia64/include/asm/sn/intr.h | 15 -
> arch/ia64/include/asm/sn/sn_sal.h | 124 --
> arch/ia64/include/asm/sparsemem.h | 28 -
> arch/ia64/include/asm/spinlock.h | 265 ---
> arch/ia64/include/asm/spinlock_types.h | 22 -
> arch/ia64/include/asm/string.h | 22 -
> arch/ia64/include/asm/switch_to.h | 71 -
> arch/ia64/include/asm/syscall.h | 65 -
> arch/ia64/include/asm/thread_info.h | 131 --
> arch/ia64/include/asm/timex.h | 47 -
> arch/ia64/include/asm/tlb.h | 50 -
> arch/ia64/include/asm/tlbflush.h | 128 --
> arch/ia64/include/asm/topology.h | 56 -
> arch/ia64/include/asm/types.h | 32 -
> arch/ia64/include/asm/uaccess.h | 265 ---
> arch/ia64/include/asm/uncached.h | 9 -
> arch/ia64/include/asm/unistd.h | 38 -
> arch/ia64/include/asm/unwind.h | 234 --
> arch/ia64/include/asm/user.h | 53 -
> arch/ia64/include/asm/ustack.h | 12 -
> arch/ia64/include/asm/uv/uv.h | 30 -
> arch/ia64/include/asm/uv/uv_hub.h | 315 ---
> arch/ia64/include/asm/uv/uv_mmrs.h | 825 -------
> arch/ia64/include/asm/vermagic.h | 15 -
> arch/ia64/include/asm/vga.h | 26 -
> arch/ia64/include/asm/vmalloc.h | 4 -
> arch/ia64/include/asm/xor.h | 30 -
> arch/ia64/include/asm/xtp.h | 46 -
> arch/ia64/include/uapi/asm/Kbuild | 2 -
> arch/ia64/include/uapi/asm/auxvec.h | 14 -
> arch/ia64/include/uapi/asm/bitsperlong.h | 9 -
> arch/ia64/include/uapi/asm/break.h | 23 -
> arch/ia64/include/uapi/asm/byteorder.h | 7 -
> arch/ia64/include/uapi/asm/cmpxchg.h | 159 --
> arch/ia64/include/uapi/asm/fcntl.h | 15 -
> arch/ia64/include/uapi/asm/fpu.h | 67 -
> arch/ia64/include/uapi/asm/gcc_intrin.h | 619 ------
> arch/ia64/include/uapi/asm/ia64regs.h | 101 -
> arch/ia64/include/uapi/asm/intel_intrin.h | 162 --
> arch/ia64/include/uapi/asm/intrinsics.h | 86 -
> arch/ia64/include/uapi/asm/mman.h | 17 -
> arch/ia64/include/uapi/asm/param.h | 30 -
> arch/ia64/include/uapi/asm/posix_types.h | 9 -
> arch/ia64/include/uapi/asm/ptrace.h | 248 ---
> arch/ia64/include/uapi/asm/ptrace_offsets.h | 269 ---
> arch/ia64/include/uapi/asm/resource.h | 8 -
> arch/ia64/include/uapi/asm/rse.h | 67 -
> arch/ia64/include/uapi/asm/setup.h | 25 -
> arch/ia64/include/uapi/asm/sigcontext.h | 71 -
> arch/ia64/include/uapi/asm/siginfo.h | 28 -
> arch/ia64/include/uapi/asm/signal.h | 98 -
> arch/ia64/include/uapi/asm/stat.h | 52 -
> arch/ia64/include/uapi/asm/statfs.h | 21 -
> arch/ia64/include/uapi/asm/swab.h | 35 -
> arch/ia64/include/uapi/asm/types.h | 32 -
> arch/ia64/include/uapi/asm/ucontext.h | 13 -
> arch/ia64/include/uapi/asm/unistd.h | 22 -
> arch/ia64/include/uapi/asm/ustack.h | 13 -
> arch/ia64/install.sh | 30 -
> arch/ia64/kernel/.gitignore | 3 -
> arch/ia64/kernel/Makefile | 46 -
> arch/ia64/kernel/Makefile.gate | 29 -
> arch/ia64/kernel/acpi-ext.c | 101 -
> arch/ia64/kernel/acpi.c | 911 --------
> arch/ia64/kernel/asm-offsets.c | 289 ---
> arch/ia64/kernel/audit.c | 63 -
> arch/ia64/kernel/brl_emu.c | 217 --
> arch/ia64/kernel/crash.c | 266 ---
> arch/ia64/kernel/crash_dump.c | 27 -
> arch/ia64/kernel/cyclone.c | 125 --
> arch/ia64/kernel/dma-mapping.c | 9 -
> arch/ia64/kernel/efi.c | 1360 ------------
> arch/ia64/kernel/efi_stub.S | 87 -
> arch/ia64/kernel/elfcore.c | 77 -
> arch/ia64/kernel/entry.S | 1428 ------------
> arch/ia64/kernel/entry.h | 83 -
> arch/ia64/kernel/err_inject.c | 273 ---
> arch/ia64/kernel/esi.c | 193 --
> arch/ia64/kernel/esi_stub.S | 99 -
> arch/ia64/kernel/fsys.S | 837 -------
> arch/ia64/kernel/fsyscall_gtod_data.h | 30 -
> arch/ia64/kernel/ftrace.c | 196 --
> arch/ia64/kernel/gate-data.S | 3 -
> arch/ia64/kernel/gate.S | 380 ----
> arch/ia64/kernel/gate.lds.S | 108 -
> arch/ia64/kernel/head.S | 1168 ----------
> arch/ia64/kernel/iosapic.c | 1137 ----------
> arch/ia64/kernel/irq.c | 181 --
> arch/ia64/kernel/irq.h | 3 -
> arch/ia64/kernel/irq_ia64.c | 645 ------
> arch/ia64/kernel/irq_lsapic.c | 45 -
> arch/ia64/kernel/ivt.S | 1689 --------------
> arch/ia64/kernel/kprobes.c | 911 --------
> arch/ia64/kernel/machine_kexec.c | 163 --
> arch/ia64/kernel/mca.c | 2111 ------------------
> arch/ia64/kernel/mca_asm.S | 1123 ----------
> arch/ia64/kernel/mca_drv.c | 796 -------
> arch/ia64/kernel/mca_drv.h | 123 --
> arch/ia64/kernel/mca_drv_asm.S | 56 -
> arch/ia64/kernel/minstate.h | 251 ---
> arch/ia64/kernel/module.c | 955 --------
> arch/ia64/kernel/msi_ia64.c | 198 --
> arch/ia64/kernel/numa.c | 73 -
> arch/ia64/kernel/pal.S | 306 ---
> arch/ia64/kernel/palinfo.c | 942 --------
> arch/ia64/kernel/patch.c | 237 --
> arch/ia64/kernel/pci-dma.c | 33 -
> arch/ia64/kernel/perfmon_itanium.h | 116 -
> arch/ia64/kernel/process.c | 610 -----
> arch/ia64/kernel/ptrace.c | 2012 -----------------
> arch/ia64/kernel/relocate_kernel.S | 321 ---
> arch/ia64/kernel/sal.c | 400 ----
> arch/ia64/kernel/salinfo.c | 646 ------
> arch/ia64/kernel/setup.c | 1082 ---------
> arch/ia64/kernel/sigframe.h | 26 -
> arch/ia64/kernel/signal.c | 412 ----
> arch/ia64/kernel/smp.c | 335 ---
> arch/ia64/kernel/smpboot.c | 839 -------
> arch/ia64/kernel/stacktrace.c | 40 -
> arch/ia64/kernel/sys_ia64.c | 197 --
> arch/ia64/kernel/syscalls/Makefile | 32 -
> arch/ia64/kernel/syscalls/syscall.tbl | 373 ----
> arch/ia64/kernel/time.c | 462 ----
> arch/ia64/kernel/topology.c | 410 ----
> arch/ia64/kernel/traps.c | 612 ------
> arch/ia64/kernel/unaligned.c | 1560 -------------
> arch/ia64/kernel/uncached.c | 273 ---
> arch/ia64/kernel/unwind.c | 2320 --------------------
> arch/ia64/kernel/unwind_decoder.c | 460 ----
> arch/ia64/kernel/unwind_i.h | 165 --
> arch/ia64/kernel/vmlinux.lds.S | 225 --
> arch/ia64/lib/Makefile | 48 -
> arch/ia64/lib/checksum.c | 102 -
> arch/ia64/lib/clear_page.S | 79 -
> arch/ia64/lib/clear_user.S | 212 --
> arch/ia64/lib/copy_page.S | 101 -
> arch/ia64/lib/copy_page_mck.S | 188 --
> arch/ia64/lib/copy_user.S | 613 ------
> arch/ia64/lib/csum_partial_copy.c | 98 -
> arch/ia64/lib/do_csum.S | 324 ---
> arch/ia64/lib/flush.S | 120 -
> arch/ia64/lib/idiv32.S | 86 -
> arch/ia64/lib/idiv64.S | 83 -
> arch/ia64/lib/io.c | 51 -
> arch/ia64/lib/ip_fast_csum.S | 148 --
> arch/ia64/lib/memcpy.S | 304 ---
> arch/ia64/lib/memcpy_mck.S | 659 ------
> arch/ia64/lib/memset.S | 365 ---
> arch/ia64/lib/strlen.S | 195 --
> arch/ia64/lib/strncpy_from_user.S | 47 -
> arch/ia64/lib/strnlen_user.S | 48 -
> arch/ia64/lib/xor.S | 181 --
> arch/ia64/mm/Makefile | 11 -
> arch/ia64/mm/contig.c | 208 --
> arch/ia64/mm/discontig.c | 635 ------
> arch/ia64/mm/extable.c | 24 -
> arch/ia64/mm/fault.c | 272 ---
> arch/ia64/mm/hugetlbpage.c | 186 --
> arch/ia64/mm/init.c | 518 -----
> arch/ia64/mm/ioremap.c | 123 --
> arch/ia64/mm/numa.c | 80 -
> arch/ia64/mm/tlb.c | 591 -----
> arch/ia64/pci/Makefile | 5 -
> arch/ia64/pci/fixup.c | 80 -
> arch/ia64/pci/pci.c | 576 -----
> arch/ia64/scripts/check-gas | 16 -
> arch/ia64/scripts/check-gas-asm.S | 2 -
> arch/ia64/scripts/check-model.c | 1 -
> arch/ia64/scripts/check-segrel.S | 5 -
> arch/ia64/scripts/check-segrel.lds | 13 -
> arch/ia64/scripts/check-serialize.S | 2 -
> arch/ia64/scripts/check-text-align.S | 7 -
> arch/ia64/scripts/toolchain-flags | 54 -
> arch/ia64/scripts/unwcheck.py | 65 -
> arch/ia64/uv/Makefile | 12 -
> arch/ia64/uv/kernel/Makefile | 12 -
> arch/ia64/uv/kernel/setup.c | 120 -
> drivers/acpi/Kconfig | 6 +-
> drivers/acpi/numa/Kconfig | 4 +-
> drivers/acpi/osl.c | 2 +-
> drivers/char/Kconfig | 4 +-
> drivers/char/Makefile | 1 -
> drivers/char/agp/Kconfig | 16 +-
> drivers/char/agp/Makefile | 2 -
> drivers/char/agp/hp-agp.c | 550 -----
> drivers/char/agp/i460-agp.c | 659 ------
> drivers/char/hpet.c | 30 -
> drivers/char/hw_random/Kconfig | 2 +-
> drivers/char/mem.c | 12 -
> drivers/char/mspec.c | 295 ---
> drivers/cpufreq/Kconfig | 11 -
> drivers/cpufreq/Makefile | 1 -
> drivers/cpufreq/ia64-acpi-cpufreq.c | 353 ---
> drivers/firmware/Kconfig | 24 -
> drivers/firmware/Makefile | 1 -
> drivers/firmware/efi/Kconfig | 6 +-
> drivers/firmware/efi/efi.c | 13 +-
> drivers/firmware/pcdp.c | 135 --
> drivers/firmware/pcdp.h | 108 -
> drivers/gpu/drm/drm_ioc32.c | 4 +-
> drivers/input/serio/i8042.h | 2 +-
> drivers/iommu/Kconfig | 4 +-
> drivers/iommu/intel/Kconfig | 2 +-
> drivers/media/cec/platform/Kconfig | 2 +-
> drivers/misc/Kconfig | 2 +-
> drivers/misc/sgi-gru/gru.h | 4 +-
> drivers/misc/sgi-gru/gru_instructions.h | 12 +-
> drivers/misc/sgi-gru/grufile.c | 72 -
> drivers/misc/sgi-gru/gruhandles.c | 6 -
> drivers/misc/sgi-gru/grumain.c | 4 -
> drivers/misc/sgi-xp/xp.h | 2 +-
> drivers/misc/sgi-xp/xp_uv.c | 24 -
> drivers/misc/sgi-xp/xpc_main.c | 31 -
> drivers/misc/sgi-xp/xpc_uv.c | 85 -
> drivers/net/ethernet/broadcom/tg3.c | 2 +-
> drivers/net/ethernet/brocade/bna/bnad.h | 1 -
> drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c | 2 -
> drivers/pci/vgaarb.c | 2 +-
> drivers/tty/serial/8250/Kconfig | 2 +-
> drivers/tty/vt/keyboard.c | 2 +-
> drivers/video/fbdev/Kconfig | 2 +-
> drivers/watchdog/Kconfig | 2 +-
> fs/Kconfig | 2 +-
> fs/afs/main.c | 2 -
> fs/xfs/xfs_ioctl32.h | 2 +-
> include/linux/acpi.h | 9 +-
> include/linux/efi.h | 7 -
> include/linux/mm.h | 2 -
> include/linux/moduleparam.h | 2 +-
> include/trace/events/mmflags.h | 2 +-
> init/Kconfig | 2 +-
> kernel/cpu.c | 3 -
> kernel/fork.c | 2 +-
> kernel/sched/core.c | 29 +-
> kernel/sysctl.c | 9 -
> lib/Kconfig.debug | 2 +-
> lib/decompress_unxz.c | 3 -
> lib/xz/Kconfig | 5 -
> mm/mmap.c | 6 +-
> scripts/headers_install.sh | 1 -
> tools/arch/ia64/include/asm/barrier.h | 59 -
> tools/arch/ia64/include/uapi/asm/bitsperlong.h | 9 -
> tools/arch/ia64/include/uapi/asm/mman.h | 7 -
> usr/include/Makefile | 6 -
> 362 files changed, 45 insertions(+), 65193 deletions(-)
>
> diff --git a/Documentation/core-api/cpu_hotplug.rst b/Documentation/core-api/cpu_hotplug.rst
> index f75778d374884810..67eab9742753e8f8 100644
> --- a/Documentation/core-api/cpu_hotplug.rst
> +++ b/Documentation/core-api/cpu_hotplug.rst
> @@ -40,12 +40,6 @@ Command Line Switches
> supplied here is lower than the number of physically available CPUs, then
> those CPUs can not be brought online later.
>
> -``additional_cpus=n``
> - Use this to limit hotpluggable CPUs. This option sets
> - ``cpu_possible_mask = cpu_present_mask + additional_cpus``
> -
> - This option is limited to the IA64 architecture.
> -
> ``possible_cpus=n``
> This option sets ``possible_cpus`` bits in ``cpu_possible_mask``.
>
> diff --git a/Documentation/ia64/aliasing.rst b/Documentation/ia64/aliasing.rst
> deleted file mode 100644
> index 36a1e1d4842b8139..0000000000000000
> diff --git a/Documentation/ia64/efirtc.rst b/Documentation/ia64/efirtc.rst
> deleted file mode 100644
> index fd832840830152b8..0000000000000000
> diff --git a/Documentation/ia64/err_inject.rst b/Documentation/ia64/err_inject.rst
> deleted file mode 100644
> index 900f71e93a29c5ae..0000000000000000
> diff --git a/Documentation/ia64/features.rst b/Documentation/ia64/features.rst
> deleted file mode 100644
> index d7226fdcf5f8c003..0000000000000000
> diff --git a/Documentation/ia64/fsys.rst b/Documentation/ia64/fsys.rst
> deleted file mode 100644
> index a702d2cc94b6300e..0000000000000000
> diff --git a/Documentation/ia64/ia64.rst b/Documentation/ia64/ia64.rst
> deleted file mode 100644
> index b725019a94927f72..0000000000000000
> diff --git a/Documentation/ia64/index.rst b/Documentation/ia64/index.rst
> deleted file mode 100644
> index 761f2154dfa27a30..0000000000000000
> diff --git a/Documentation/ia64/irq-redir.rst b/Documentation/ia64/irq-redir.rst
> deleted file mode 100644
> index 6bbbbe4f73efc487..0000000000000000
> diff --git a/Documentation/ia64/mca.rst b/Documentation/ia64/mca.rst
> deleted file mode 100644
> index 08270bba44a44313..0000000000000000
> diff --git a/Documentation/ia64/serial.rst b/Documentation/ia64/serial.rst
> deleted file mode 100644
> index 1de70c305a7911cd..0000000000000000
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 39ff1a7176252700..b797093f60cd048f 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -9840,12 +9840,6 @@ F: Documentation/driver-api/i3c
> F: drivers/i3c/
> F: include/linux/i3c/
>
> -IA64 (Itanium) PLATFORM
> -L: [email protected]
> -S: Orphan
> -F: Documentation/ia64/
> -F: arch/ia64/
> -
> IBM Operation Panel Input Driver
> M: Eddie James <[email protected]>
> L: [email protected]
> @@ -15930,11 +15924,6 @@ L: [email protected]
> S: Maintained
> F: drivers/i2c/muxes/i2c-mux-pca9541.c
>
> -PCDP - PRIMARY CONSOLE AND DEBUG PORT
> -M: Khalid Aziz <[email protected]>
> -S: Maintained
> -F: drivers/firmware/pcdp.*
> -
> PCI DRIVER FOR AARDVARK (Marvell Armada 3700)
> M: Thomas Petazzoni <[email protected]>
> M: Pali Roh?r <[email protected]>
> diff --git a/arch/Kconfig b/arch/Kconfig
> index 12e3ddabac9d3be0..774448a24c511f22 100644
> --- a/arch/Kconfig
> +++ b/arch/Kconfig
> @@ -1036,7 +1036,6 @@ config HAVE_ARCH_COMPAT_MMAP_BASES
> config PAGE_SIZE_LESS_THAN_64KB
> def_bool y
> depends on !ARM64_64K_PAGES
> - depends on !IA64_PAGE_SIZE_64KB
> depends on !PAGE_SIZE_64KB
> depends on !PARISC_PAGE_SIZE_64KB
> depends on PAGE_SIZE_LESS_THAN_256KB
> diff --git a/arch/ia64/Kbuild b/arch/ia64/Kbuild
> deleted file mode 100644
> index e77cc76d228cdb8c..0000000000000000
> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
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> diff --git a/arch/ia64/Kconfig.debug b/arch/ia64/Kconfig.debug
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> diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
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> diff --git a/arch/ia64/configs/bigsur_defconfig b/arch/ia64/configs/bigsur_defconfig
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> diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig
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> diff --git a/arch/ia64/configs/gensparse_defconfig b/arch/ia64/configs/gensparse_defconfig
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> diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig
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> diff --git a/arch/ia64/configs/zx1_defconfig b/arch/ia64/configs/zx1_defconfig
> deleted file mode 100644
> index ed104550d0d519a2..0000000000000000
> diff --git a/arch/ia64/hp/common/Makefile b/arch/ia64/hp/common/Makefile
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> diff --git a/arch/ia64/hp/common/aml_nfw.c b/arch/ia64/hp/common/aml_nfw.c
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> diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
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> diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
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> diff --git a/arch/ia64/include/asm/acenv.h b/arch/ia64/include/asm/acenv.h
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> diff --git a/arch/ia64/include/asm/acpi-ext.h b/arch/ia64/include/asm/acpi-ext.h
> deleted file mode 100644
> index eaa57583d1515a78..0000000000000000
> diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
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> diff --git a/arch/ia64/include/asm/agp.h b/arch/ia64/include/asm/agp.h
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> diff --git a/arch/ia64/include/asm/asm-offsets.h b/arch/ia64/include/asm/asm-offsets.h
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> diff --git a/arch/ia64/include/asm/asm-prototypes.h b/arch/ia64/include/asm/asm-prototypes.h
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> diff --git a/arch/ia64/include/asm/asmmacro.h b/arch/ia64/include/asm/asmmacro.h
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> index 52619c517f099e54..0000000000000000
> diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
> deleted file mode 100644
> index 266c429b91372e93..0000000000000000
> diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h
> deleted file mode 100644
> index 751cdd3534469da4..0000000000000000
> diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h
> deleted file mode 100644
> index 1accb7842f588064..0000000000000000
> diff --git a/arch/ia64/include/asm/bug.h b/arch/ia64/include/asm/bug.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/bugs.h b/arch/ia64/include/asm/bugs.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h
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> diff --git a/arch/ia64/include/asm/cacheflush.h b/arch/ia64/include/asm/cacheflush.h
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> diff --git a/arch/ia64/include/asm/checksum.h b/arch/ia64/include/asm/checksum.h
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> diff --git a/arch/ia64/include/asm/clocksource.h b/arch/ia64/include/asm/clocksource.h
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> diff --git a/arch/ia64/include/asm/cmpxchg.h b/arch/ia64/include/asm/cmpxchg.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/cpu.h b/arch/ia64/include/asm/cpu.h
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> diff --git a/arch/ia64/include/asm/cputime.h b/arch/ia64/include/asm/cputime.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/current.h b/arch/ia64/include/asm/current.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/cyclone.h b/arch/ia64/include/asm/cyclone.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/delay.h b/arch/ia64/include/asm/delay.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/device.h b/arch/ia64/include/asm/device.h
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> diff --git a/arch/ia64/include/asm/div64.h b/arch/ia64/include/asm/div64.h
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> diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
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> diff --git a/arch/ia64/include/asm/dma.h b/arch/ia64/include/asm/dma.h
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> diff --git a/arch/ia64/include/asm/dmi.h b/arch/ia64/include/asm/dmi.h
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> diff --git a/arch/ia64/include/asm/early_ioremap.h b/arch/ia64/include/asm/early_ioremap.h
> deleted file mode 100644
> index 934191b1e2e3eaa4..0000000000000000
> diff --git a/arch/ia64/include/asm/efi.h b/arch/ia64/include/asm/efi.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h
> deleted file mode 100644
> index 2ef5f9966ad18fe6..0000000000000000
> diff --git a/arch/ia64/include/asm/emergency-restart.h b/arch/ia64/include/asm/emergency-restart.h
> deleted file mode 100644
> index 108d8c48e42e8697..0000000000000000
> diff --git a/arch/ia64/include/asm/esi.h b/arch/ia64/include/asm/esi.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/exception.h b/arch/ia64/include/asm/exception.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/export.h b/arch/ia64/include/asm/export.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/extable.h b/arch/ia64/include/asm/extable.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/fb.h b/arch/ia64/include/asm/fb.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/fpswa.h b/arch/ia64/include/asm/fpswa.h
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> diff --git a/arch/ia64/include/asm/ftrace.h b/arch/ia64/include/asm/ftrace.h
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> index a07a8e57545388a7..0000000000000000
> diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h
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> diff --git a/arch/ia64/include/asm/gcc_intrin.h b/arch/ia64/include/asm/gcc_intrin.h
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> diff --git a/arch/ia64/include/asm/hardirq.h b/arch/ia64/include/asm/hardirq.h
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> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
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> diff --git a/arch/ia64/include/asm/hw_irq.h b/arch/ia64/include/asm/hw_irq.h
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> diff --git a/arch/ia64/include/asm/idle.h b/arch/ia64/include/asm/idle.h
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> diff --git a/arch/ia64/include/asm/intrinsics.h b/arch/ia64/include/asm/intrinsics.h
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> diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
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> diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h
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> index eb0db20c9d4c0caa..0000000000000000
> diff --git a/arch/ia64/include/asm/iosapic.h b/arch/ia64/include/asm/iosapic.h
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> index a91aeb413e17b4c5..0000000000000000
> diff --git a/arch/ia64/include/asm/irq.h b/arch/ia64/include/asm/irq.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/irq_regs.h b/arch/ia64/include/asm/irq_regs.h
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> index 3dd9c0b702704abf..0000000000000000
> diff --git a/arch/ia64/include/asm/irq_remapping.h b/arch/ia64/include/asm/irq_remapping.h
> deleted file mode 100644
> index 547a6e87018c4b61..0000000000000000
> diff --git a/arch/ia64/include/asm/irqflags.h b/arch/ia64/include/asm/irqflags.h
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> diff --git a/arch/ia64/include/asm/kdebug.h b/arch/ia64/include/asm/kdebug.h
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> diff --git a/arch/ia64/include/asm/kexec.h b/arch/ia64/include/asm/kexec.h
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> diff --git a/arch/ia64/include/asm/kprobes.h b/arch/ia64/include/asm/kprobes.h
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> diff --git a/arch/ia64/include/asm/kregs.h b/arch/ia64/include/asm/kregs.h
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> index 44113b75e4ebbd57..0000000000000000
> diff --git a/arch/ia64/include/asm/libata-portmap.h b/arch/ia64/include/asm/libata-portmap.h
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> index 757f84e5dc6e83fa..0000000000000000
> diff --git a/arch/ia64/include/asm/linkage.h b/arch/ia64/include/asm/linkage.h
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> diff --git a/arch/ia64/include/asm/local.h b/arch/ia64/include/asm/local.h
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> diff --git a/arch/ia64/include/asm/mca.h b/arch/ia64/include/asm/mca.h
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> diff --git a/arch/ia64/include/asm/mca_asm.h b/arch/ia64/include/asm/mca_asm.h
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> diff --git a/arch/ia64/include/asm/meminit.h b/arch/ia64/include/asm/meminit.h
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> diff --git a/arch/ia64/include/asm/mman.h b/arch/ia64/include/asm/mman.h
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> diff --git a/arch/ia64/include/asm/mmiowb.h b/arch/ia64/include/asm/mmiowb.h
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> diff --git a/arch/ia64/include/asm/mmu.h b/arch/ia64/include/asm/mmu.h
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> index f75f44f531c2e865..0000000000000000
> diff --git a/arch/ia64/include/asm/mmu_context.h b/arch/ia64/include/asm/mmu_context.h
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> diff --git a/arch/ia64/include/asm/mmzone.h b/arch/ia64/include/asm/mmzone.h
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> diff --git a/arch/ia64/include/asm/module.h b/arch/ia64/include/asm/module.h
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> diff --git a/arch/ia64/include/asm/msidef.h b/arch/ia64/include/asm/msidef.h
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> diff --git a/arch/ia64/include/asm/native/inst.h b/arch/ia64/include/asm/native/inst.h
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> diff --git a/arch/ia64/include/asm/native/irq.h b/arch/ia64/include/asm/native/irq.h
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> diff --git a/arch/ia64/include/asm/native/patchlist.h b/arch/ia64/include/asm/native/patchlist.h
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> diff --git a/arch/ia64/include/asm/nodedata.h b/arch/ia64/include/asm/nodedata.h
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> index 2fb337b0e9b78648..0000000000000000
> diff --git a/arch/ia64/include/asm/numa.h b/arch/ia64/include/asm/numa.h
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> diff --git a/arch/ia64/include/asm/page.h b/arch/ia64/include/asm/page.h
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> diff --git a/arch/ia64/include/asm/pal.h b/arch/ia64/include/asm/pal.h
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> diff --git a/arch/ia64/include/asm/param.h b/arch/ia64/include/asm/param.h
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> diff --git a/arch/ia64/include/asm/parport.h b/arch/ia64/include/asm/parport.h
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> diff --git a/arch/ia64/include/asm/patch.h b/arch/ia64/include/asm/patch.h
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> diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
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> diff --git a/arch/ia64/include/asm/percpu.h b/arch/ia64/include/asm/percpu.h
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> diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
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> diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
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> diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h
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> diff --git a/arch/ia64/include/asm/ptrace.h b/arch/ia64/include/asm/ptrace.h
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> diff --git a/arch/ia64/include/asm/sal.h b/arch/ia64/include/asm/sal.h
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> diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
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> diff --git a/arch/ia64/include/asm/serial.h b/arch/ia64/include/asm/serial.h
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> diff --git a/arch/ia64/include/asm/shmparam.h b/arch/ia64/include/asm/shmparam.h
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> diff --git a/arch/ia64/include/asm/signal.h b/arch/ia64/include/asm/signal.h
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> diff --git a/arch/ia64/include/asm/smp.h b/arch/ia64/include/asm/smp.h
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> diff --git a/arch/ia64/include/asm/sn/intr.h b/arch/ia64/include/asm/sn/intr.h
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> diff --git a/arch/ia64/include/asm/sparsemem.h b/arch/ia64/include/asm/sparsemem.h
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> diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h
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> diff --git a/arch/ia64/include/asm/string.h b/arch/ia64/include/asm/string.h
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> diff --git a/arch/ia64/include/asm/switch_to.h b/arch/ia64/include/asm/switch_to.h
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> diff --git a/arch/ia64/include/asm/syscall.h b/arch/ia64/include/asm/syscall.h
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> diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h
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> diff --git a/arch/ia64/include/asm/timex.h b/arch/ia64/include/asm/timex.h
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> diff --git a/arch/ia64/include/asm/tlb.h b/arch/ia64/include/asm/tlb.h
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> diff --git a/arch/ia64/include/asm/topology.h b/arch/ia64/include/asm/topology.h
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> diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
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> diff --git a/arch/ia64/include/asm/unwind.h b/arch/ia64/include/asm/unwind.h
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> diff --git a/arch/ia64/include/asm/user.h b/arch/ia64/include/asm/user.h
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> diff --git a/arch/ia64/include/asm/ustack.h b/arch/ia64/include/asm/ustack.h
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> diff --git a/arch/ia64/include/asm/uv/uv.h b/arch/ia64/include/asm/uv/uv.h
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> diff --git a/arch/ia64/include/asm/uv/uv_hub.h b/arch/ia64/include/asm/uv/uv_hub.h
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> diff --git a/arch/ia64/include/asm/uv/uv_mmrs.h b/arch/ia64/include/asm/uv/uv_mmrs.h
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> diff --git a/arch/ia64/include/asm/vermagic.h b/arch/ia64/include/asm/vermagic.h
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> diff --git a/arch/ia64/include/asm/vga.h b/arch/ia64/include/asm/vga.h
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> diff --git a/arch/ia64/include/asm/vmalloc.h b/arch/ia64/include/asm/vmalloc.h
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> diff --git a/arch/ia64/include/asm/xor.h b/arch/ia64/include/asm/xor.h
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> diff --git a/arch/ia64/include/asm/xtp.h b/arch/ia64/include/asm/xtp.h
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> diff --git a/arch/ia64/include/uapi/asm/Kbuild b/arch/ia64/include/uapi/asm/Kbuild
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> diff --git a/arch/ia64/include/uapi/asm/auxvec.h b/arch/ia64/include/uapi/asm/auxvec.h
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> deleted file mode 100644
> index e1d4e86e3d63b430..0000000000000000
> diff --git a/arch/ia64/scripts/check-segrel.S b/arch/ia64/scripts/check-segrel.S
> deleted file mode 100644
> index 65d6378adaaaa5fb..0000000000000000
> diff --git a/arch/ia64/scripts/check-segrel.lds b/arch/ia64/scripts/check-segrel.lds
> deleted file mode 100644
> index c385d246e45846e2..0000000000000000
> diff --git a/arch/ia64/scripts/check-serialize.S b/arch/ia64/scripts/check-serialize.S
> deleted file mode 100644
> index 0400c106806cd58d..0000000000000000
> diff --git a/arch/ia64/scripts/check-text-align.S b/arch/ia64/scripts/check-text-align.S
> deleted file mode 100644
> index 107fa1c88c2e115f..0000000000000000
> diff --git a/arch/ia64/scripts/toolchain-flags b/arch/ia64/scripts/toolchain-flags
> deleted file mode 100755
> index 12dff5c981cf1cf3..0000000000000000
> diff --git a/arch/ia64/scripts/unwcheck.py b/arch/ia64/scripts/unwcheck.py
> deleted file mode 100644
> index 9581742f0db23c21..0000000000000000
> diff --git a/arch/ia64/uv/Makefile b/arch/ia64/uv/Makefile
> deleted file mode 100644
> index aa9f91947c492341..0000000000000000
> diff --git a/arch/ia64/uv/kernel/Makefile b/arch/ia64/uv/kernel/Makefile
> deleted file mode 100644
> index 297196578d19d409..0000000000000000
> diff --git a/arch/ia64/uv/kernel/setup.c b/arch/ia64/uv/kernel/setup.c
> deleted file mode 100644
> index bb025486d7912d2f..0000000000000000
> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> index ccbeab9500ecb003..92c0bdadf5283659 100644
> --- a/drivers/acpi/Kconfig
> +++ b/drivers/acpi/Kconfig
> @@ -257,7 +257,7 @@ config ACPI_CPU_FREQ_PSS
> config ACPI_PROCESSOR_CSTATE
> def_bool y
> depends on ACPI_PROCESSOR
> - depends on IA64 || X86
> + depends on X86
>
> config ACPI_PROCESSOR_IDLE
> bool
> @@ -281,9 +281,9 @@ config ACPI_CPPC_LIB
>
> config ACPI_PROCESSOR
> tristate "Processor"
> - depends on X86 || IA64 || ARM64 || LOONGARCH
> + depends on X86 || ARM64 || LOONGARCH
> select ACPI_PROCESSOR_IDLE
> - select ACPI_CPU_FREQ_PSS if X86 || IA64 || LOONGARCH
> + select ACPI_CPU_FREQ_PSS if X86 || LOONGARCH
> select THERMAL
> default y
> help
> diff --git a/drivers/acpi/numa/Kconfig b/drivers/acpi/numa/Kconfig
> index 39b1f34c21dfd7a8..849c2bd820b93e90 100644
> --- a/drivers/acpi/numa/Kconfig
> +++ b/drivers/acpi/numa/Kconfig
> @@ -2,8 +2,8 @@
> config ACPI_NUMA
> bool "NUMA support"
> depends on NUMA
> - depends on (X86 || IA64 || ARM64 || LOONGARCH)
> - default y if IA64 || ARM64
> + depends on (X86 || ARM64 || LOONGARCH)
> + default y if ARM64
>
> config ACPI_HMAT
> bool "ACPI Heterogeneous Memory Attribute Table Support"
> diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
> index 3269a888fb7a97a3..23bcb6d5cfeeb082 100644
> --- a/drivers/acpi/osl.c
> +++ b/drivers/acpi/osl.c
> @@ -276,7 +276,7 @@ acpi_map_lookup_virt(void __iomem *virt, acpi_size size)
> return NULL;
> }
>
> -#if defined(CONFIG_IA64) || defined(CONFIG_ARM64)
> +#if defined(CONFIG_ARM64)
> /* ioremap will take care of cache attributes */
> #define should_use_kmap(pfn) 0
> #else
> diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
> index 30fe9848dac1c1dc..02189b4756d01937 100644
> --- a/drivers/char/Kconfig
> +++ b/drivers/char/Kconfig
> @@ -349,7 +349,7 @@ config DEVPORT
> device is similar to /dev/mem, but for I/O ports.
>
> config HPET
> - bool "HPET - High Precision Event Timer" if (X86 || IA64)
> + bool "HPET - High Precision Event Timer" if X86
> default n
> depends on ACPI
> help
> @@ -378,7 +378,7 @@ config HPET_MMAP_DEFAULT
>
> config HANGCHECK_TIMER
> tristate "Hangcheck timer"
> - depends on X86 || IA64 || PPC64 || S390
> + depends on X86 || PPC64 || S390
> help
> The hangcheck-timer module detects when the system has gone
> out to lunch past a certain margin. It can reboot the system
> diff --git a/drivers/char/Makefile b/drivers/char/Makefile
> index 1b35d1724565ebfd..9f492f8a13acf71a 100644
> --- a/drivers/char/Makefile
> +++ b/drivers/char/Makefile
> @@ -8,7 +8,6 @@ obj-$(CONFIG_TTY_PRINTK) += ttyprintk.o
> obj-y += misc.o
> obj-$(CONFIG_ATARI_DSP56K) += dsp56k.o
> obj-$(CONFIG_VIRTIO_CONSOLE) += virtio_console.o
> -obj-$(CONFIG_MSPEC) += mspec.o
> obj-$(CONFIG_UV_MMTIMER) += uv_mmtimer.o
> obj-$(CONFIG_IBM_BSR) += bsr.o
>
> diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig
> index 4f501e4842ab391d..c47eb7bf06d46b58 100644
> --- a/drivers/char/agp/Kconfig
> +++ b/drivers/char/agp/Kconfig
> @@ -1,7 +1,7 @@
> # SPDX-License-Identifier: GPL-2.0
> menuconfig AGP
> tristate "/dev/agpgart (AGP Support)"
> - depends on ALPHA || IA64 || PARISC || PPC || X86
> + depends on ALPHA || PARISC || PPC || X86
> depends on PCI
> help
> AGP (Accelerated Graphics Port) is a bus system mainly used to
> @@ -109,20 +109,6 @@ config AGP_VIA
> This option gives you AGP support for the GLX component of
> X on VIA MVP3/Apollo Pro chipsets.
>
> -config AGP_I460
> - tristate "Intel 460GX chipset support"
> - depends on AGP && IA64
> - help
> - This option gives you AGP GART support for the Intel 460GX chipset
> - for IA64 processors.
> -
> -config AGP_HP_ZX1
> - tristate "HP ZX1 chipset AGP support"
> - depends on AGP && IA64
> - help
> - This option gives you AGP GART support for the HP ZX1 chipset
> - for IA64 processors.
> -
> config AGP_PARISC
> tristate "HP Quicksilver AGP support"
> depends on AGP && PARISC && 64BIT && IOMMU_SBA
> diff --git a/drivers/char/agp/Makefile b/drivers/char/agp/Makefile
> index 90ed8c789e4824fb..25834557e486538c 100644
> --- a/drivers/char/agp/Makefile
> +++ b/drivers/char/agp/Makefile
> @@ -14,9 +14,7 @@ obj-$(CONFIG_AGP_AMD) += amd-k7-agp.o
> obj-$(CONFIG_AGP_AMD64) += amd64-agp.o
> obj-$(CONFIG_AGP_ALPHA_CORE) += alpha-agp.o
> obj-$(CONFIG_AGP_EFFICEON) += efficeon-agp.o
> -obj-$(CONFIG_AGP_HP_ZX1) += hp-agp.o
> obj-$(CONFIG_AGP_PARISC) += parisc-agp.o
> -obj-$(CONFIG_AGP_I460) += i460-agp.o
> obj-$(CONFIG_AGP_INTEL) += intel-agp.o
> obj-$(CONFIG_INTEL_GTT) += intel-gtt.o
> obj-$(CONFIG_AGP_NVIDIA) += nvidia-agp.o
> diff --git a/drivers/char/agp/hp-agp.c b/drivers/char/agp/hp-agp.c
> deleted file mode 100644
> index 84d9adbb62f6a7bb..0000000000000000
> diff --git a/drivers/char/agp/i460-agp.c b/drivers/char/agp/i460-agp.c
> deleted file mode 100644
> index 15b240ea4848f1b8..0000000000000000
> diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
> index ee71376f174b70db..3b2159416e624a6a 100644
> --- a/drivers/char/hpet.c
> +++ b/drivers/char/hpet.c
> @@ -64,25 +64,6 @@
> static DEFINE_MUTEX(hpet_mutex); /* replaces BKL */
> static u32 hpet_nhpet, hpet_max_freq = HPET_USER_FREQ;
>
> -/* This clocksource driver currently only works on ia64 */
> -#ifdef CONFIG_IA64
> -static void __iomem *hpet_mctr;
> -
> -static u64 read_hpet(struct clocksource *cs)
> -{
> - return (u64)read_counter((void __iomem *)hpet_mctr);
> -}
> -
> -static struct clocksource clocksource_hpet = {
> - .name = "hpet",
> - .rating = 250,
> - .read = read_hpet,
> - .mask = CLOCKSOURCE_MASK(64),
> - .flags = CLOCK_SOURCE_IS_CONTINUOUS,
> -};
> -static struct clocksource *hpet_clocksource;
> -#endif
> -
> /* A lock for concurrent access by app and isr hpet activity. */
> static DEFINE_SPINLOCK(hpet_lock);
>
> @@ -907,17 +888,6 @@ int hpet_alloc(struct hpet_data *hdp)
>
> hpetp->hp_delta = hpet_calibrate(hpetp);
>
> -/* This clocksource driver currently only works on ia64 */
> -#ifdef CONFIG_IA64
> - if (!hpet_clocksource) {
> - hpet_mctr = (void __iomem *)&hpetp->hp_hpet->hpet_mc;
> - clocksource_hpet.archdata.fsys_mmio = hpet_mctr;
> - clocksource_register_hz(&clocksource_hpet, hpetp->hp_tick_freq);
> - hpetp->hp_clocksource = &clocksource_hpet;
> - hpet_clocksource = &clocksource_hpet;
> - }
> -#endif
> -
> return 0;
> }
>
> diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
> index 3da8e85f8aae03c7..aa59b5c24c44c8df 100644
> --- a/drivers/char/hw_random/Kconfig
> +++ b/drivers/char/hw_random/Kconfig
> @@ -37,7 +37,7 @@ config HW_RANDOM_TIMERIOMEM
>
> config HW_RANDOM_INTEL
> tristate "Intel HW Random Number Generator support"
> - depends on (X86 || IA64) && PCI
> + depends on X86 && PCI
> default HW_RANDOM
> help
> This driver provides kernel-side support for the Random Number
> diff --git a/drivers/char/mem.c b/drivers/char/mem.c
> index 83bf2a4dcb57ed84..efd29fb5417e1fd3 100644
> --- a/drivers/char/mem.c
> +++ b/drivers/char/mem.c
> @@ -31,10 +31,6 @@
> #include <linux/uaccess.h>
> #include <linux/security.h>
>
> -#ifdef CONFIG_IA64
> -# include <linux/efi.h>
> -#endif
> -
> #define DEVMEM_MINOR 1
> #define DEVPORT_MINOR 4
>
> @@ -284,13 +280,6 @@ int __weak phys_mem_access_prot_allowed(struct file *file,
> #ifdef pgprot_noncached
> static int uncached_access(struct file *file, phys_addr_t addr)
> {
> -#if defined(CONFIG_IA64)
> - /*
> - * On ia64, we ignore O_DSYNC because we cannot tolerate memory
> - * attribute aliases.
> - */
> - return !(efi_mem_attributes(addr) & EFI_MEMORY_WB);
> -#else
> /*
> * Accessing memory above the top the kernel knows about or through a
> * file pointer
> @@ -299,7 +288,6 @@ static int uncached_access(struct file *file, phys_addr_t addr)
> if (file->f_flags & O_DSYNC)
> return 1;
> return addr >= __pa(high_memory);
> -#endif
> }
> #endif
>
> diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c
> deleted file mode 100644
> index f8231e2e84beccec..0000000000000000
> diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
> index 2a84fc63371e2ea2..faaf36c2e9a62bb7 100644
> --- a/drivers/cpufreq/Kconfig
> +++ b/drivers/cpufreq/Kconfig
> @@ -239,17 +239,6 @@ if PPC32 || PPC64
> source "drivers/cpufreq/Kconfig.powerpc"
> endif
>
> -if IA64
> -config IA64_ACPI_CPUFREQ
> - tristate "ACPI Processor P-States driver"
> - depends on ACPI_PROCESSOR
> - help
> - This driver adds a CPUFreq driver which utilizes the ACPI
> - Processor Performance States.
> -
> - If in doubt, say N.
> -endif
> -
> if MIPS
> config BMIPS_CPUFREQ
> tristate "BMIPS CPUfreq Driver"
> diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
> index 32a7029e25ed8103..12b5c8fd20eae57e 100644
> --- a/drivers/cpufreq/Makefile
> +++ b/drivers/cpufreq/Makefile
> @@ -109,7 +109,6 @@ obj-$(CONFIG_POWERNV_CPUFREQ) += powernv-cpufreq.o
> ##################################################################################
> # Other platform drivers
> obj-$(CONFIG_BMIPS_CPUFREQ) += bmips-cpufreq.o
> -obj-$(CONFIG_IA64_ACPI_CPUFREQ) += ia64-acpi-cpufreq.o
> obj-$(CONFIG_LOONGSON2_CPUFREQ) += loongson2_cpufreq.o
> obj-$(CONFIG_LOONGSON1_CPUFREQ) += loongson1-cpufreq.o
> obj-$(CONFIG_SH_CPU_FREQ) += sh-cpufreq.o
> diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
> deleted file mode 100644
> index c6bdc455517f856b..0000000000000000
> diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
> index b59e3041fd627585..a79579fea6f05ae5 100644
> --- a/drivers/firmware/Kconfig
> +++ b/drivers/firmware/Kconfig
> @@ -77,30 +77,6 @@ config FIRMWARE_MEMMAP
>
> See also Documentation/ABI/testing/sysfs-firmware-memmap.
>
> -config EFI_PCDP
> - bool "Console device selection via EFI PCDP or HCDP table"
> - depends on ACPI && EFI && IA64
> - default y if IA64
> - help
> - If your firmware supplies the PCDP table, and you want to
> - automatically use the primary console device it describes
> - as the Linux console, say Y here.
> -
> - If your firmware supplies the HCDP table, and you want to
> - use the first serial port it describes as the Linux console,
> - say Y here. If your EFI ConOut path contains only a UART
> - device, it will become the console automatically. Otherwise,
> - you must specify the "console=hcdp" kernel boot argument.
> -
> - Neither the PCDP nor the HCDP affects naming of serial devices,
> - so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
> - on how the driver discovers devices.
> -
> - You must also enable the appropriate drivers (serial, VGA, etc.)
> -
> - See DIG64_HCDPv20_042804.pdf available from
> - <http://www.dig64.org/specifications/>
> -
> config DMIID
> bool "Export DMI identification via sysfs to userspace"
> depends on DMI
> diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
> index 28fcddcd688fc2fd..1d1eb671d805d099 100644
> --- a/drivers/firmware/Makefile
> +++ b/drivers/firmware/Makefile
> @@ -8,7 +8,6 @@ obj-$(CONFIG_ARM_SDE_INTERFACE) += arm_sdei.o
> obj-$(CONFIG_DMI) += dmi_scan.o
> obj-$(CONFIG_DMI_SYSFS) += dmi-sysfs.o
> obj-$(CONFIG_EDD) += edd.o
> -obj-$(CONFIG_EFI_PCDP) += pcdp.o
> obj-$(CONFIG_DMIID) += dmi-id.o
> obj-$(CONFIG_INTEL_STRATIX10_SERVICE) += stratix10-svc.o
> obj-$(CONFIG_INTEL_STRATIX10_RSU) += stratix10-rsu.o
> diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig
> index 043ca31c114ebf2a..923b07690cbf0061 100644
> --- a/drivers/firmware/efi/Kconfig
> +++ b/drivers/firmware/efi/Kconfig
> @@ -4,7 +4,7 @@ menu "EFI (Extensible Firmware Interface) Support"
>
> config EFI_ESRT
> bool
> - depends on EFI && !IA64
> + depends on EFI
> default y
>
> config EFI_VARS_PSTORE
> @@ -123,7 +123,7 @@ config EFI_BOOTLOADER_CONTROL
>
> config EFI_CAPSULE_LOADER
> tristate "EFI capsule loader"
> - depends on EFI && !IA64
> + depends on EFI
> help
> This option exposes a loader interface "/dev/efi_capsule_loader" for
> users to load EFI capsules. This driver requires working runtime
> @@ -224,7 +224,7 @@ config EFI_DISABLE_PCI_DMA
>
> config EFI_EARLYCON
> def_bool y
> - depends on SERIAL_EARLYCON && !ARM && !IA64
> + depends on SERIAL_EARLYCON && !ARM
> select FONT_SUPPORT
> select ARCH_USE_MEMREMAP_PROT
>
> diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
> index 1e0b016fdc2b1217..b30d5c3e03a9e7a4 100644
> --- a/drivers/firmware/efi/efi.c
> +++ b/drivers/firmware/efi/efi.c
> @@ -144,7 +144,7 @@ static ssize_t systab_show(struct kobject *kobj,
> if (efi.smbios != EFI_INVALID_TABLE_ADDR)
> str += sprintf(str, "SMBIOS=0x%lx\n", efi.smbios);
>
> - if (IS_ENABLED(CONFIG_IA64) || IS_ENABLED(CONFIG_X86))
> + if (IS_ENABLED(CONFIG_X86))
> str = efi_systab_show_arch(str);
>
> return str - buf;
> @@ -737,7 +737,6 @@ int __init efi_systab_check_header(const efi_table_hdr_t *systab_hdr,
> return 0;
> }
>
> -#ifndef CONFIG_IA64
> static const efi_char16_t *__init map_fw_vendor(unsigned long fw_vendor,
> size_t size)
> {
> @@ -753,10 +752,6 @@ static void __init unmap_fw_vendor(const void *fw_vendor, size_t size)
> {
> early_memunmap((void *)fw_vendor, size);
> }
> -#else
> -#define map_fw_vendor(p, s) __va(p)
> -#define unmap_fw_vendor(v, s)
> -#endif
>
> void __init efi_systab_report_header(const efi_table_hdr_t *systab_hdr,
> unsigned long fw_vendor)
> @@ -853,11 +848,6 @@ char * __init efi_md_typeattr_format(char *buf, size_t size,
> return buf;
> }
>
> -/*
> - * IA64 has a funky EFI memory map that doesn't work the same way as
> - * other architectures.
> - */
> -#ifndef CONFIG_IA64
> /*
> * efi_mem_attributes - lookup memmap attributes for physical address
> * @phys_addr: the physical address to lookup
> @@ -905,7 +895,6 @@ int efi_mem_type(unsigned long phys_addr)
> }
> return -EINVAL;
> }
> -#endif
>
> int efi_status_to_err(efi_status_t status)
> {
> diff --git a/drivers/firmware/pcdp.c b/drivers/firmware/pcdp.c
> deleted file mode 100644
> index 715a45442d1cfe64..0000000000000000
> diff --git a/drivers/firmware/pcdp.h b/drivers/firmware/pcdp.h
> deleted file mode 100644
> index e02540571c524c40..0000000000000000
> diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
> index 5d82891c32223e4d..4414d99e02ac658b 100644
> --- a/drivers/gpu/drm/drm_ioc32.c
> +++ b/drivers/gpu/drm/drm_ioc32.c
> @@ -945,11 +945,11 @@ static struct {
> DRM_IOCTL32_DEF(DRM_IOCTL_SG_ALLOC, compat_drm_sg_alloc),
> DRM_IOCTL32_DEF(DRM_IOCTL_SG_FREE, compat_drm_sg_free),
> #endif
> -#if defined(CONFIG_X86) || defined(CONFIG_IA64)
> +#if defined(CONFIG_X86)
> DRM_IOCTL32_DEF(DRM_IOCTL_UPDATE_DRAW, compat_drm_update_draw),
> #endif
> DRM_IOCTL32_DEF(DRM_IOCTL_WAIT_VBLANK, compat_drm_wait_vblank),
> -#if defined(CONFIG_X86) || defined(CONFIG_IA64)
> +#if defined(CONFIG_X86)
> DRM_IOCTL32_DEF(DRM_IOCTL_MODE_ADDFB2, compat_drm_mode_addfb2),
> #endif
> };
> diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
> index adb5173372d3ee6d..5f61672d55b73aaa 100644
> --- a/drivers/input/serio/i8042.h
> +++ b/drivers/input/serio/i8042.h
> @@ -19,7 +19,7 @@
> #include "i8042-snirm.h"
> #elif defined(CONFIG_SPARC)
> #include "i8042-sparcio.h"
> -#elif defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH)
> +#elif defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
> #include "i8042-acpipnpio.h"
> #else
> #include "i8042-io.h"
> diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> index 79707685d54a4f8f..013683ad7ecc9319 100644
> --- a/drivers/iommu/Kconfig
> +++ b/drivers/iommu/Kconfig
> @@ -93,7 +93,7 @@ config IOMMU_DEBUGFS
> choice
> prompt "IOMMU default domain type"
> depends on IOMMU_API
> - default IOMMU_DEFAULT_DMA_LAZY if X86 || IA64
> + default IOMMU_DEFAULT_DMA_LAZY if X86
> default IOMMU_DEFAULT_DMA_STRICT
> help
> Choose the type of IOMMU domain used to manage DMA API usage by
> @@ -148,7 +148,7 @@ config OF_IOMMU
>
> # IOMMU-agnostic DMA-mapping layer
> config IOMMU_DMA
> - def_bool ARM64 || IA64 || X86
> + def_bool ARM64 || X86
> select DMA_OPS
> select IOMMU_API
> select IOMMU_IOVA
> diff --git a/drivers/iommu/intel/Kconfig b/drivers/iommu/intel/Kconfig
> index b7dff5092fd21c06..44205ffdcb5cc149 100644
> --- a/drivers/iommu/intel/Kconfig
> +++ b/drivers/iommu/intel/Kconfig
> @@ -11,7 +11,7 @@ config DMAR_DEBUG
>
> config INTEL_IOMMU
> bool "Support for Intel IOMMU using DMA Remapping Devices"
> - depends on PCI_MSI && ACPI && (X86 || IA64)
> + depends on PCI_MSI && ACPI && X86
> select DMA_OPS
> select IOMMU_API
> select IOMMU_IOVA
> diff --git a/drivers/media/cec/platform/Kconfig b/drivers/media/cec/platform/Kconfig
> index b672d3142eb795f4..ede81fe331b0de73 100644
> --- a/drivers/media/cec/platform/Kconfig
> +++ b/drivers/media/cec/platform/Kconfig
> @@ -99,7 +99,7 @@ config CEC_TEGRA
>
> config CEC_SECO
> tristate "SECO Boards HDMI CEC driver"
> - depends on (X86 || IA64) || COMPILE_TEST
> + depends on X86 || COMPILE_TEST
> depends on PCI && DMI
> select CEC_CORE
> select CEC_NOTIFIER
> diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
> index 9947b7892bd5af61..2573dd21d0aa77d4 100644
> --- a/drivers/misc/Kconfig
> +++ b/drivers/misc/Kconfig
> @@ -166,7 +166,7 @@ config ENCLOSURE_SERVICES
> config SGI_XP
> tristate "Support communication between SGI SSIs"
> depends on NET
> - depends on (IA64_SGI_UV || X86_UV) && SMP
> + depends on X86_UV && SMP
> depends on X86_64 || BROKEN
> select SGI_GRU if X86_64 && SMP
> help
> diff --git a/drivers/misc/sgi-gru/gru.h b/drivers/misc/sgi-gru/gru.h
> index 3ad76cd18b4bb41a..6ae045037219a339 100644
> --- a/drivers/misc/sgi-gru/gru.h
> +++ b/drivers/misc/sgi-gru/gru.h
> @@ -30,9 +30,7 @@
> /*
> * Size used to map GRU GSeg
> */
> -#if defined(CONFIG_IA64)
> -#define GRU_GSEG_PAGESIZE (256 * 1024UL)
> -#elif defined(CONFIG_X86_64)
> +#if defined(CONFIG_X86_64)
> #define GRU_GSEG_PAGESIZE (256 * 1024UL) /* ZZZ 2MB ??? */
> #else
> #error "Unsupported architecture"
> diff --git a/drivers/misc/sgi-gru/gru_instructions.h b/drivers/misc/sgi-gru/gru_instructions.h
> index 04d5170ac1497352..da5eb9edf9ecd6bd 100644
> --- a/drivers/misc/sgi-gru/gru_instructions.h
> +++ b/drivers/misc/sgi-gru/gru_instructions.h
> @@ -29,17 +29,7 @@ extern void gru_wait_abort_proc(void *cb);
> * Architecture dependent functions
> */
>
> -#if defined(CONFIG_IA64)
> -#include <linux/compiler.h>
> -#include <asm/intrinsics.h>
> -#define __flush_cache(p) ia64_fc((unsigned long)p)
> -/* Use volatile on IA64 to ensure ordering via st4.rel */
> -#define gru_ordered_store_ulong(p, v) \
> - do { \
> - barrier(); \
> - *((volatile unsigned long *)(p)) = v; /* force st.rel */ \
> - } while (0)
> -#elif defined(CONFIG_X86_64)
> +#if defined(CONFIG_X86_64)
> #include <asm/cacheflush.h>
> #define __flush_cache(p) clflush(p)
> #define gru_ordered_store_ulong(p, v) \
> diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
> index 7ffcfc0bb58723fe..ab731678b0428b1f 100644
> --- a/drivers/misc/sgi-gru/grufile.c
> +++ b/drivers/misc/sgi-gru/grufile.c
> @@ -337,72 +337,6 @@ static unsigned long gru_chiplet_cpu_to_mmr(int chiplet, int cpu, int *corep)
> return mmr;
> }
>
> -#ifdef CONFIG_IA64
> -
> -static int gru_irq_count[GRU_CHIPLETS_PER_BLADE];
> -
> -static void gru_noop(struct irq_data *d)
> -{
> -}
> -
> -static struct irq_chip gru_chip[GRU_CHIPLETS_PER_BLADE] = {
> - [0 ... GRU_CHIPLETS_PER_BLADE - 1] {
> - .irq_mask = gru_noop,
> - .irq_unmask = gru_noop,
> - .irq_ack = gru_noop
> - }
> -};
> -
> -static int gru_chiplet_setup_tlb_irq(int chiplet, char *irq_name,
> - irq_handler_t irq_handler, int cpu, int blade)
> -{
> - unsigned long mmr;
> - int irq = IRQ_GRU + chiplet;
> - int ret, core;
> -
> - mmr = gru_chiplet_cpu_to_mmr(chiplet, cpu, &core);
> - if (mmr == 0)
> - return 0;
> -
> - if (gru_irq_count[chiplet] == 0) {
> - gru_chip[chiplet].name = irq_name;
> - ret = irq_set_chip(irq, &gru_chip[chiplet]);
> - if (ret) {
> - printk(KERN_ERR "%s: set_irq_chip failed, errno=%d\n",
> - GRU_DRIVER_ID_STR, -ret);
> - return ret;
> - }
> -
> - ret = request_irq(irq, irq_handler, 0, irq_name, NULL);
> - if (ret) {
> - printk(KERN_ERR "%s: request_irq failed, errno=%d\n",
> - GRU_DRIVER_ID_STR, -ret);
> - return ret;
> - }
> - }
> - gru_irq_count[chiplet]++;
> -
> - return 0;
> -}
> -
> -static void gru_chiplet_teardown_tlb_irq(int chiplet, int cpu, int blade)
> -{
> - unsigned long mmr;
> - int core, irq = IRQ_GRU + chiplet;
> -
> - if (gru_irq_count[chiplet] == 0)
> - return;
> -
> - mmr = gru_chiplet_cpu_to_mmr(chiplet, cpu, &core);
> - if (mmr == 0)
> - return;
> -
> - if (--gru_irq_count[chiplet] == 0)
> - free_irq(irq, NULL);
> -}
> -
> -#elif defined CONFIG_X86_64
> -
> static int gru_chiplet_setup_tlb_irq(int chiplet, char *irq_name,
> irq_handler_t irq_handler, int cpu, int blade)
> {
> @@ -447,8 +381,6 @@ static void gru_chiplet_teardown_tlb_irq(int chiplet, int cpu, int blade)
> }
> }
>
> -#endif
> -
> static void gru_teardown_tlb_irqs(void)
> {
> int blade;
> @@ -514,12 +446,8 @@ static int __init gru_init(void)
> if (!gru_supported())
> return 0;
>
> -#if defined CONFIG_IA64
> - gru_start_paddr = 0xd000000000UL; /* ZZZZZZZZZZZZZZZZZZZ fixme */
> -#else
> gru_start_paddr = uv_read_local_mmr(UVH_RH_GAM_GRU_OVERLAY_CONFIG) &
> 0x7fffffffffffUL;
> -#endif
> gru_start_vaddr = __va(gru_start_paddr);
> gru_end_paddr = gru_start_paddr + GRU_MAX_BLADES * GRU_SIZE;
> printk(KERN_INFO "GRU space: 0x%lx - 0x%lx\n",
> diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c
> index 1d75d5e540bc992b..695316a83b01044f 100644
> --- a/drivers/misc/sgi-gru/gruhandles.c
> +++ b/drivers/misc/sgi-gru/gruhandles.c
> @@ -11,16 +11,10 @@
> #include "grutables.h"
>
> /* 10 sec */
> -#ifdef CONFIG_IA64
> -#include <asm/processor.h>
> -#define GRU_OPERATION_TIMEOUT (((cycles_t) local_cpu_data->itc_freq)*10)
> -#define CLKS2NSEC(c) ((c) *1000000000 / local_cpu_data->itc_freq)
> -#else
> #include <linux/sync_core.h>
> #include <asm/tsc.h>
> #define GRU_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
> #define CLKS2NSEC(c) ((c) * 1000000 / tsc_khz)
> -#endif
>
> /* Extract the status field from a kernel handle */
> #define GET_MSEG_HANDLE_STATUS(h) (((*(unsigned long *)(h)) >> 16) & 3)
> diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c
> index 4eb4b94551390791..0f5b09e290c89981 100644
> --- a/drivers/misc/sgi-gru/grumain.c
> +++ b/drivers/misc/sgi-gru/grumain.c
> @@ -41,16 +41,12 @@ struct device *grudev = &gru_device;
> */
> int gru_cpu_fault_map_id(void)
> {
> -#ifdef CONFIG_IA64
> - return uv_blade_processor_id() % GRU_NUM_TFM;
> -#else
> int cpu = smp_processor_id();
> int id, core;
>
> core = uv_cpu_core_number(cpu);
> id = core + UV_MAX_INT_CORES * uv_cpu_socket_number(cpu);
> return id;
> -#endif
> }
>
> /*--------- ASID Management -------------------------------------------
> diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h
> index f1336f43d3bd13ee..3185711beb0780f2 100644
> --- a/drivers/misc/sgi-xp/xp.h
> +++ b/drivers/misc/sgi-xp/xp.h
> @@ -16,7 +16,7 @@
>
> #include <linux/mutex.h>
>
> -#if defined CONFIG_X86_UV || defined CONFIG_IA64_SGI_UV
> +#if defined CONFIG_X86_UV
> #include <asm/uv/uv.h>
> #endif
>
> diff --git a/drivers/misc/sgi-xp/xp_uv.c b/drivers/misc/sgi-xp/xp_uv.c
> index 19fc7076af274f74..3faa7eadf679e3c2 100644
> --- a/drivers/misc/sgi-xp/xp_uv.c
> +++ b/drivers/misc/sgi-xp/xp_uv.c
> @@ -18,8 +18,6 @@
> #include <asm/uv/uv_hub.h>
> #if defined CONFIG_X86_64
> #include <asm/uv/bios.h>
> -#elif defined CONFIG_IA64_SGI_UV
> -#include <asm/sn/sn_sal.h>
> #endif
> #include "../sgi-gru/grukservices.h"
> #include "xp.h"
> @@ -99,17 +97,6 @@ xp_expand_memprotect_uv(unsigned long phys_addr, unsigned long size)
> "UV_MEMPROT_ALLOW_RW) failed, ret=%d\n", ret);
> return xpBiosError;
> }
> -
> -#elif defined CONFIG_IA64_SGI_UV
> - u64 nasid_array;
> -
> - ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_1,
> - &nasid_array);
> - if (ret != 0) {
> - dev_err(xp, "sn_change_memprotect(,, "
> - "SN_MEMPROT_ACCESS_CLASS_1,) failed ret=%d\n", ret);
> - return xpSalError;
> - }
> #else
> #error not a supported configuration
> #endif
> @@ -129,17 +116,6 @@ xp_restrict_memprotect_uv(unsigned long phys_addr, unsigned long size)
> "UV_MEMPROT_RESTRICT_ACCESS) failed, ret=%d\n", ret);
> return xpBiosError;
> }
> -
> -#elif defined CONFIG_IA64_SGI_UV
> - u64 nasid_array;
> -
> - ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_0,
> - &nasid_array);
> - if (ret != 0) {
> - dev_err(xp, "sn_change_memprotect(,, "
> - "SN_MEMPROT_ACCESS_CLASS_0,) failed ret=%d\n", ret);
> - return xpSalError;
> - }
> #else
> #error not a supported configuration
> #endif
> diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
> index b2c3c22fc13c1361..ea540b03a0f6e9b8 100644
> --- a/drivers/misc/sgi-xp/xpc_main.c
> +++ b/drivers/misc/sgi-xp/xpc_main.c
> @@ -1162,36 +1162,6 @@ xpc_die_deactivate(void)
> static int
> xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
> {
> -#ifdef CONFIG_IA64 /* !!! temporary kludge */
> - switch (event) {
> - case DIE_MACHINE_RESTART:
> - case DIE_MACHINE_HALT:
> - xpc_die_deactivate();
> - break;
> -
> - case DIE_KDEBUG_ENTER:
> - /* Should lack of heartbeat be ignored by other partitions? */
> - if (!xpc_kdebug_ignore)
> - break;
> -
> - fallthrough;
> - case DIE_MCA_MONARCH_ENTER:
> - case DIE_INIT_MONARCH_ENTER:
> - xpc_arch_ops.offline_heartbeat();
> - break;
> -
> - case DIE_KDEBUG_LEAVE:
> - /* Is lack of heartbeat being ignored by other partitions? */
> - if (!xpc_kdebug_ignore)
> - break;
> -
> - fallthrough;
> - case DIE_MCA_MONARCH_LEAVE:
> - case DIE_INIT_MONARCH_LEAVE:
> - xpc_arch_ops.online_heartbeat();
> - break;
> - }
> -#else
> struct die_args *die_args = _die_args;
>
> switch (event) {
> @@ -1213,7 +1183,6 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
> default:
> xpc_die_deactivate();
> }
> -#endif
>
> return NOTIFY_DONE;
> }
> diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
> index fff522d347e33f31..2f03a7080d965235 100644
> --- a/drivers/misc/sgi-xp/xpc_uv.c
> +++ b/drivers/misc/sgi-xp/xpc_uv.c
> @@ -24,34 +24,12 @@
> #include <linux/slab.h>
> #include <linux/numa.h>
> #include <asm/uv/uv_hub.h>
> -#if defined CONFIG_X86_64
> #include <asm/uv/bios.h>
> #include <asm/uv/uv_irq.h>
> -#elif defined CONFIG_IA64_SGI_UV
> -#include <asm/sn/intr.h>
> -#include <asm/sn/sn_sal.h>
> -#endif
> #include "../sgi-gru/gru.h"
> #include "../sgi-gru/grukservices.h"
> #include "xpc.h"
>
> -#if defined CONFIG_IA64_SGI_UV
> -struct uv_IO_APIC_route_entry {
> - __u64 vector : 8,
> - delivery_mode : 3,
> - dest_mode : 1,
> - delivery_status : 1,
> - polarity : 1,
> - __reserved_1 : 1,
> - trigger : 1,
> - mask : 1,
> - __reserved_2 : 15,
> - dest : 32;
> -};
> -
> -#define sn_partition_id 0
> -#endif
> -
> static struct xpc_heartbeat_uv *xpc_heartbeat_uv;
>
> #define XPC_ACTIVATE_MSG_SIZE_UV (1 * GRU_CACHE_LINE_BYTES)
> @@ -113,7 +91,6 @@ xpc_get_gru_mq_irq_uv(struct xpc_gru_mq_uv *mq, int cpu, char *irq_name)
> {
> int mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);
>
> -#if defined CONFIG_X86_64
> mq->irq = uv_setup_irq(irq_name, cpu, mq->mmr_blade, mq->mmr_offset,
> UV_AFFINITY_CPU);
> if (mq->irq < 0)
> @@ -121,40 +98,13 @@ xpc_get_gru_mq_irq_uv(struct xpc_gru_mq_uv *mq, int cpu, char *irq_name)
>
> mq->mmr_value = uv_read_global_mmr64(mmr_pnode, mq->mmr_offset);
>
> -#elif defined CONFIG_IA64_SGI_UV
> - if (strcmp(irq_name, XPC_ACTIVATE_IRQ_NAME) == 0)
> - mq->irq = SGI_XPC_ACTIVATE;
> - else if (strcmp(irq_name, XPC_NOTIFY_IRQ_NAME) == 0)
> - mq->irq = SGI_XPC_NOTIFY;
> - else
> - return -EINVAL;
> -
> - mq->mmr_value = (unsigned long)cpu_physical_id(cpu) << 32 | mq->irq;
> - uv_write_global_mmr64(mmr_pnode, mq->mmr_offset, mq->mmr_value);
> -#else
> - #error not a supported configuration
> -#endif
> -
> return 0;
> }
>
> static void
> xpc_release_gru_mq_irq_uv(struct xpc_gru_mq_uv *mq)
> {
> -#if defined CONFIG_X86_64
> uv_teardown_irq(mq->irq);
> -
> -#elif defined CONFIG_IA64_SGI_UV
> - int mmr_pnode;
> - unsigned long mmr_value;
> -
> - mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);
> - mmr_value = 1UL << 16;
> -
> - uv_write_global_mmr64(mmr_pnode, mq->mmr_offset, mmr_value);
> -#else
> - #error not a supported configuration
> -#endif
> }
>
> static int
> @@ -162,17 +112,6 @@ xpc_gru_mq_watchlist_alloc_uv(struct xpc_gru_mq_uv *mq)
> {
> int ret;
>
> -#if defined CONFIG_IA64_SGI_UV
> - int mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);
> -
> - ret = sn_mq_watchlist_alloc(mmr_pnode, (void *)uv_gpa(mq->address),
> - mq->order, &mq->mmr_offset);
> - if (ret < 0) {
> - dev_err(xpc_part, "sn_mq_watchlist_alloc() failed, ret=%d\n",
> - ret);
> - return -EBUSY;
> - }
> -#elif defined CONFIG_X86_64
> ret = uv_bios_mq_watchlist_alloc(uv_gpa(mq->address),
> mq->order, &mq->mmr_offset);
> if (ret < 0) {
> @@ -180,9 +119,6 @@ xpc_gru_mq_watchlist_alloc_uv(struct xpc_gru_mq_uv *mq)
> "ret=%d\n", ret);
> return ret;
> }
> -#else
> - #error not a supported configuration
> -#endif
>
> mq->watchlist_num = ret;
> return 0;
> @@ -194,15 +130,8 @@ xpc_gru_mq_watchlist_free_uv(struct xpc_gru_mq_uv *mq)
> int ret;
> int mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);
>
> -#if defined CONFIG_X86_64
> ret = uv_bios_mq_watchlist_free(mmr_pnode, mq->watchlist_num);
> BUG_ON(ret != BIOS_STATUS_SUCCESS);
> -#elif defined CONFIG_IA64_SGI_UV
> - ret = sn_mq_watchlist_free(mmr_pnode, mq->watchlist_num);
> - BUG_ON(ret != SALRET_OK);
> -#else
> - #error not a supported configuration
> -#endif
> }
>
> static struct xpc_gru_mq_uv *
> @@ -786,7 +715,6 @@ xpc_get_partition_rsvd_page_pa_uv(void *buf, u64 *cookie, unsigned long *rp_pa,
> s64 status;
> enum xp_retval ret;
>
> -#if defined CONFIG_X86_64
> status = uv_bios_reserved_page_pa((u64)buf, cookie, (u64 *)rp_pa,
> (u64 *)len);
> if (status == BIOS_STATUS_SUCCESS)
> @@ -796,19 +724,6 @@ xpc_get_partition_rsvd_page_pa_uv(void *buf, u64 *cookie, unsigned long *rp_pa,
> else
> ret = xpBiosError;
>
> -#elif defined CONFIG_IA64_SGI_UV
> - status = sn_partition_reserved_page_pa((u64)buf, cookie, rp_pa, len);
> - if (status == SALRET_OK)
> - ret = xpSuccess;
> - else if (status == SALRET_MORE_PASSES)
> - ret = xpNeedMoreInfo;
> - else
> - ret = xpSalError;
> -
> -#else
> - #error not a supported configuration
> -#endif
> -
> return ret;
> }
>
> diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
> index 58747292521d8199..f219878c4b79655c 100644
> --- a/drivers/net/ethernet/broadcom/tg3.c
> +++ b/drivers/net/ethernet/broadcom/tg3.c
> @@ -17001,7 +17001,7 @@ static u32 tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
> !tg3_flag(tp, PCI_EXPRESS))
> goto out;
>
> -#if defined(CONFIG_PPC64) || defined(CONFIG_IA64) || defined(CONFIG_PARISC)
> +#if defined(CONFIG_PPC64) || defined(CONFIG_PARISC)
> goal = BOUNDARY_MULTI_CACHELINE;
> #else
> #if defined(CONFIG_SPARC64) || defined(CONFIG_ALPHA)
> diff --git a/drivers/net/ethernet/brocade/bna/bnad.h b/drivers/net/ethernet/brocade/bna/bnad.h
> index 627a93ce38ab07dd..10b1e534030e628d 100644
> --- a/drivers/net/ethernet/brocade/bna/bnad.h
> +++ b/drivers/net/ethernet/brocade/bna/bnad.h
> @@ -19,7 +19,6 @@
> #include <linux/firmware.h>
> #include <linux/if_vlan.h>
>
> -/* Fix for IA64 */
> #include <asm/checksum.h>
> #include <net/ip6_checksum.h>
>
> diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
> index de8d54b23f738523..2e1b2d9c0f54cbfc 100644
> --- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
> +++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
> @@ -234,9 +234,7 @@ static int nx_set_dma_mask(struct netxen_adapter *adapter)
> cmask = DMA_BIT_MASK(32);
>
> if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
> -#ifndef CONFIG_IA64
> mask = DMA_BIT_MASK(35);
> -#endif
> } else {
> mask = DMA_BIT_MASK(39);
> cmask = mask;
> diff --git a/drivers/pci/vgaarb.c b/drivers/pci/vgaarb.c
> index f80b6ec88dc301e0..a9c2aa0ea5751dc7 100644
> --- a/drivers/pci/vgaarb.c
> +++ b/drivers/pci/vgaarb.c
> @@ -545,7 +545,7 @@ EXPORT_SYMBOL(vga_put);
>
> static bool vga_is_firmware_default(struct pci_dev *pdev)
> {
> -#if defined(CONFIG_X86) || defined(CONFIG_IA64)
> +#if defined(CONFIG_X86)
> u64 base = screen_info.lfb_base;
> u64 size = screen_info.lfb_size;
> u64 limit;
> diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
> index b0f62345bc846dcb..fc4acb9e323b6922 100644
> --- a/drivers/tty/serial/8250/Kconfig
> +++ b/drivers/tty/serial/8250/Kconfig
> @@ -216,7 +216,7 @@ config SERIAL_8250_EXTENDED
>
> config SERIAL_8250_MANY_PORTS
> bool "Support more than 4 legacy serial ports"
> - depends on SERIAL_8250_EXTENDED && !IA64
> + depends on SERIAL_8250_EXTENDED
> help
> Say Y here if you have dumb serial boards other than the four
> standard COM 1/2/3/4 ports. This may happen if you have an AST
> diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
> index be8313cdbac360ac..218dae88ad575a0e 100644
> --- a/drivers/tty/vt/keyboard.c
> +++ b/drivers/tty/vt/keyboard.c
> @@ -1273,7 +1273,7 @@ static void kbd_bh(struct tasklet_struct *unused)
> }
> }
>
> -#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\
> +#if defined(CONFIG_X86) || defined(CONFIG_ALPHA) ||\
> defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\
> defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\
> (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC))
> diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
> index b2bed599e6c6ea1c..834a2a615786d168 100644
> --- a/drivers/video/fbdev/Kconfig
> +++ b/drivers/video/fbdev/Kconfig
> @@ -641,7 +641,7 @@ config FB_VESA
>
> config FB_EFI
> bool "EFI-based Framebuffer Support"
> - depends on (FB = y) && !IA64 && EFI
> + depends on (FB = y) && EFI
> select APERTURE_HELPERS
> select DRM_PANEL_ORIENTATION_QUIRKS
> select FB_CFB_FILLRECT
> diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
> index 0bc40b763b065210..fe51fb2bd4947c42 100644
> --- a/drivers/watchdog/Kconfig
> +++ b/drivers/watchdog/Kconfig
> @@ -1268,7 +1268,7 @@ config INTEL_MID_WATCHDOG
>
> config ITCO_WDT
> tristate "Intel TCO Timer/Watchdog"
> - depends on (X86 || IA64) && PCI
> + depends on X86 && PCI
> select WATCHDOG_CORE
> depends on I2C || I2C=n
> depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
> diff --git a/fs/Kconfig b/fs/Kconfig
> index 2685a4d0d353188b..11f5dd246fce4a68 100644
> --- a/fs/Kconfig
> +++ b/fs/Kconfig
> @@ -234,7 +234,7 @@ config ARCH_SUPPORTS_HUGETLBFS
>
> config HUGETLBFS
> bool "HugeTLB file system support"
> - depends on X86 || IA64 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN
> + depends on X86 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN
> depends on (SYSFS || SYSCTL)
> help
> hugetlbfs is a filesystem backing for HugeTLB pages, based on
> diff --git a/fs/afs/main.c b/fs/afs/main.c
> index eae288c8d40a3b28..6425c81d07deac4d 100644
> --- a/fs/afs/main.c
> +++ b/fs/afs/main.c
> @@ -41,8 +41,6 @@ const char afs_init_sysname[] = "arm_linux26";
> const char afs_init_sysname[] = "aarch64_linux26";
> #elif defined(CONFIG_X86_32)
> const char afs_init_sysname[] = "i386_linux26";
> -#elif defined(CONFIG_IA64)
> -const char afs_init_sysname[] = "ia64_linux26";
> #elif defined(CONFIG_PPC64)
> const char afs_init_sysname[] = "ppc64_linux26";
> #elif defined(CONFIG_PPC32)
> diff --git a/fs/xfs/xfs_ioctl32.h b/fs/xfs/xfs_ioctl32.h
> index c14852362fceab4f..052d0e888c273a3a 100644
> --- a/fs/xfs/xfs_ioctl32.h
> +++ b/fs/xfs/xfs_ioctl32.h
> @@ -22,7 +22,7 @@
> /*
> * On intel, even if sizes match, alignment and/or padding may differ.
> */
> -#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
> +#if defined(CONFIG_X86_64)
> #define BROKEN_X86_ALIGNMENT
> #define __compat_packed __attribute__((packed))
> #else
> diff --git a/include/linux/acpi.h b/include/linux/acpi.h
> index 5e6a876e17ba0794..78753513bc5cb9a9 100644
> --- a/include/linux/acpi.h
> +++ b/include/linux/acpi.h
> @@ -270,7 +270,7 @@ void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
> /* the following numa functions are architecture-dependent */
> void acpi_numa_slit_init (struct acpi_table_slit *slit);
>
> -#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH)
> +#if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
> void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
> #else
> static inline void
> @@ -1090,15 +1090,8 @@ struct acpi_s2idle_dev_ops {
> int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
> void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);
> #endif /* CONFIG_X86 */
> -#ifndef CONFIG_IA64
> void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
> #else
> -static inline void arch_reserve_mem_area(acpi_physical_address addr,
> - size_t size)
> -{
> -}
> -#endif /* CONFIG_X86 */
> -#else
> #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
> #endif
>
> diff --git a/include/linux/efi.h b/include/linux/efi.h
> index 98598bd1d2fa5208..bdc77cc74b1accf4 100644
> --- a/include/linux/efi.h
> +++ b/include/linux/efi.h
> @@ -356,13 +356,10 @@ void efi_native_runtime_setup(void);
> * where the UEFI SPEC breaks the line.
> */
> #define NULL_GUID EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
> -#define MPS_TABLE_GUID EFI_GUID(0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
> #define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
> #define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81)
> #define SMBIOS_TABLE_GUID EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
> #define SMBIOS3_TABLE_GUID EFI_GUID(0xf2fd1544, 0x9794, 0x4a2c, 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94)
> -#define SAL_SYSTEM_TABLE_GUID EFI_GUID(0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
> -#define HCDP_TABLE_GUID EFI_GUID(0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98)
> #define UGA_IO_PROTOCOL_GUID EFI_GUID(0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0x0b, 0x07, 0xa2)
> #define EFI_GLOBAL_VARIABLE_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)
> #define UV_SYSTEM_TABLE_GUID EFI_GUID(0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93)
> @@ -831,10 +828,6 @@ static inline int efi_range_is_wc(unsigned long start, unsigned long len)
> return 1;
> }
>
> -#ifdef CONFIG_EFI_PCDP
> -extern int __init efi_setup_pcdp_console(char *);
> -#endif
> -
> /*
> * We play games with efi_enabled so that the compiler will, if
> * possible, remove EFI-related code altogether.
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index f13f20258ce9893c..97e4b34381a38625 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -347,8 +347,6 @@ extern unsigned int kobjsize(const void *objp);
> # define VM_SAO VM_ARCH_1 /* Strong Access Ordering (powerpc) */
> #elif defined(CONFIG_PARISC)
> # define VM_GROWSUP VM_ARCH_1
> -#elif defined(CONFIG_IA64)
> -# define VM_GROWSUP VM_ARCH_1
> #elif defined(CONFIG_SPARC64)
> # define VM_SPARC_ADI VM_ARCH_1 /* Uses ADI tag for access control */
> # define VM_ARCH_CLEAR VM_SPARC_ADI
> diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
> index 962cd41a2cb5aff1..99e4f1f718c705ce 100644
> --- a/include/linux/moduleparam.h
> +++ b/include/linux/moduleparam.h
> @@ -276,7 +276,7 @@ struct kparam_array
> read-only sections (which is part of respective UNIX ABI on these
> platforms). So 'const' makes no sense and even causes compile failures
> with some compilers. */
> -#if defined(CONFIG_ALPHA) || defined(CONFIG_IA64) || defined(CONFIG_PPC64)
> +#if defined(CONFIG_ALPHA) || defined(CONFIG_PPC64)
> #define __moduleparam_const
> #else
> #define __moduleparam_const const
> diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
> index 412b5a46374c036f..c00b48003f63d094 100644
> --- a/include/trace/events/mmflags.h
> +++ b/include/trace/events/mmflags.h
> @@ -143,7 +143,7 @@ IF_HAVE_PG_SKIP_KASAN_POISON(PG_skip_kasan_poison, "skip_kasan_poison")
> #define __VM_ARCH_SPECIFIC_1 {VM_PAT, "pat" }
> #elif defined(CONFIG_PPC)
> #define __VM_ARCH_SPECIFIC_1 {VM_SAO, "sao" }
> -#elif defined(CONFIG_PARISC) || defined(CONFIG_IA64)
> +#elif defined(CONFIG_PARISC)
> #define __VM_ARCH_SPECIFIC_1 {VM_GROWSUP, "growsup" }
> #elif !defined(CONFIG_MMU)
> #define __VM_ARCH_SPECIFIC_1 {VM_MAPPED_COPY,"mappedcopy" }
> diff --git a/init/Kconfig b/init/Kconfig
> index 44e90b28a30f12e8..b62319d85b198fa7 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1775,7 +1775,7 @@ config KALLSYMS_ABSOLUTE_PERCPU
> config KALLSYMS_BASE_RELATIVE
> bool
> depends on KALLSYMS
> - default !IA64
> + default y
> help
> Instead of emitting them as absolute values in the native word size,
> emit the symbol references in the kallsyms table as 32-bit entries,
> diff --git a/kernel/cpu.c b/kernel/cpu.c
> index 6c0a92ca6bb59c2c..14eddcc4d654f7ef 100644
> --- a/kernel/cpu.c
> +++ b/kernel/cpu.c
> @@ -1423,9 +1423,6 @@ static int cpu_up(unsigned int cpu, enum cpuhp_state target)
> if (!cpu_possible(cpu)) {
> pr_err("can't online cpu %d because it is not configured as may-hotadd at boot time\n",
> cpu);
> -#if defined(CONFIG_IA64)
> - pr_err("please check additional_cpus= boot parameter\n");
> -#endif
> return -EINVAL;
> }
>
> diff --git a/kernel/fork.c b/kernel/fork.c
> index 9f7fe354189785c2..6a2475d1442f0966 100644
> --- a/kernel/fork.c
> +++ b/kernel/fork.c
> @@ -2914,7 +2914,7 @@ static inline bool clone3_stack_valid(struct kernel_clone_args *kargs)
> if (!access_ok((void __user *)kargs->stack, kargs->stack_size))
> return false;
>
> -#if !defined(CONFIG_STACK_GROWSUP) && !defined(CONFIG_IA64)
> +#if !defined(CONFIG_STACK_GROWSUP)
> kargs->stack += kargs->stack_size;
> #endif
> }
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index e838feb6adc50460..285f5c3c92f13476 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -10144,9 +10144,9 @@ void normalize_rt_tasks(void)
>
> #endif /* CONFIG_MAGIC_SYSRQ */
>
> -#if defined(CONFIG_IA64) || defined(CONFIG_KGDB_KDB)
> +#if defined(CONFIG_KGDB_KDB)
> /*
> - * These functions are only useful for the IA64 MCA handling, or kdb.
> + * These functions are only useful for kdb.
> *
> * They can only be called when the whole system has been
> * stopped - every CPU needs to be quiescent, and no scheduling
> @@ -10168,30 +10168,7 @@ struct task_struct *curr_task(int cpu)
> return cpu_curr(cpu);
> }
>
> -#endif /* defined(CONFIG_IA64) || defined(CONFIG_KGDB_KDB) */
> -
> -#ifdef CONFIG_IA64
> -/**
> - * ia64_set_curr_task - set the current task for a given CPU.
> - * @cpu: the processor in question.
> - * @p: the task pointer to set.
> - *
> - * Description: This function must only be used when non-maskable interrupts
> - * are serviced on a separate stack. It allows the architecture to switch the
> - * notion of the current task on a CPU in a non-blocking manner. This function
> - * must be called with all CPU's synchronized, and interrupts disabled, the
> - * and caller must save the original value of the current task (see
> - * curr_task() above) and restore that value before reenabling interrupts and
> - * re-starting the system.
> - *
> - * ONLY VALID WHEN THE WHOLE SYSTEM IS STOPPED!
> - */
> -void ia64_set_curr_task(int cpu, struct task_struct *p)
> -{
> - cpu_curr(cpu) = p;
> -}
> -
> -#endif
> +#endif /* defined(CONFIG_KGDB_KDB) */
>
> #ifdef CONFIG_CGROUP_SCHED
> /* task_group_lock serializes the addition/removal of task groups */
> diff --git a/kernel/sysctl.c b/kernel/sysctl.c
> index 137d4abe3eda11a6..a2ae4f9c5c218acd 100644
> --- a/kernel/sysctl.c
> +++ b/kernel/sysctl.c
> @@ -1961,15 +1961,6 @@ static struct ctl_table kern_table[] = {
> .proc_handler = proc_dointvec,
> },
> #endif
> -#ifdef CONFIG_IA64
> - {
> - .procname = "unaligned-dump-stack",
> - .data = &unaligned_dump_stack,
> - .maxlen = sizeof (int),
> - .mode = 0644,
> - .proc_handler = proc_dointvec,
> - },
> -#endif
> #ifdef CONFIG_RT_MUTEXES
> {
> .procname = "max_lock_depth",
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index 02ee440f7be36cab..b2b8163f1e5e3494 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -816,7 +816,7 @@ config DEBUG_KMEMLEAK_AUTO_SCAN
>
> config DEBUG_STACK_USAGE
> bool "Stack utilization instrumentation"
> - depends on DEBUG_KERNEL && !IA64
> + depends on DEBUG_KERNEL
> help
> Enables the display of the minimum amount of free stack which each
> task has ever had available in the sysrq-T and sysrq-P debug output.
> diff --git a/lib/decompress_unxz.c b/lib/decompress_unxz.c
> index 9f4262ee33a5b9cb..33017d1eb3683302 100644
> --- a/lib/decompress_unxz.c
> +++ b/lib/decompress_unxz.c
> @@ -131,9 +131,6 @@
> #ifdef CONFIG_ARM
> # define XZ_DEC_ARM
> #endif
> -#ifdef CONFIG_IA64
> -# define XZ_DEC_IA64
> -#endif
> #ifdef CONFIG_SPARC
> # define XZ_DEC_SPARC
> #endif
> diff --git a/lib/xz/Kconfig b/lib/xz/Kconfig
> index adce22ac18d660b1..aef086a6bf2f3d27 100644
> --- a/lib/xz/Kconfig
> +++ b/lib/xz/Kconfig
> @@ -19,11 +19,6 @@ config XZ_DEC_POWERPC
> default y
> select XZ_DEC_BCJ
>
> -config XZ_DEC_IA64
> - bool "IA-64 BCJ filter decoder" if EXPERT
> - default y
> - select XZ_DEC_BCJ
> -
> config XZ_DEC_ARM
> bool "ARM BCJ filter decoder" if EXPERT
> default y
> diff --git a/mm/mmap.c b/mm/mmap.c
> index 425a9349e610825f..62d7bb74c6d0f74e 100644
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -1902,9 +1902,9 @@ static int acct_stack_growth(struct vm_area_struct *vma,
> return 0;
> }
>
> -#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
> +#if defined(CONFIG_STACK_GROWSUP)
> /*
> - * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
> + * PA-RISC uses this for its stack.
> * vma is the last one with address > vma->vm_end. Have to extend vma.
> */
> int expand_upwards(struct vm_area_struct *vma, unsigned long address)
> @@ -1994,7 +1994,7 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
> mas_destroy(&mas);
> return error;
> }
> -#endif /* CONFIG_STACK_GROWSUP || CONFIG_IA64 */
> +#endif /* CONFIG_STACK_GROWSUP */
>
> /*
> * vma is the first one with address < vma->vm_start. Have to extend vma.
> diff --git a/scripts/headers_install.sh b/scripts/headers_install.sh
> index 4041881746adef21..9c009558e7286983 100755
> --- a/scripts/headers_install.sh
> +++ b/scripts/headers_install.sh
> @@ -76,7 +76,6 @@ arch/arc/include/uapi/asm/swab.h:CONFIG_ARC_HAS_SWAPE
> arch/arm/include/uapi/asm/ptrace.h:CONFIG_CPU_ENDIAN_BE8
> arch/hexagon/include/uapi/asm/ptrace.h:CONFIG_HEXAGON_ARCH_VERSION
> arch/hexagon/include/uapi/asm/user.h:CONFIG_HEXAGON_ARCH_VERSION
> -arch/ia64/include/uapi/asm/cmpxchg.h:CONFIG_IA64_DEBUG_CMPXCHG
> arch/m68k/include/uapi/asm/ptrace.h:CONFIG_COLDFIRE
> arch/nios2/include/uapi/asm/swab.h:CONFIG_NIOS2_CI_SWAB_NO
> arch/nios2/include/uapi/asm/swab.h:CONFIG_NIOS2_CI_SWAB_SUPPORT
> diff --git a/tools/arch/ia64/include/asm/barrier.h b/tools/arch/ia64/include/asm/barrier.h
> deleted file mode 100644
> index 6fffe56827134385..0000000000000000
> diff --git a/tools/arch/ia64/include/uapi/asm/bitsperlong.h b/tools/arch/ia64/include/uapi/asm/bitsperlong.h
> deleted file mode 100644
> index 1146d55563db3773..0000000000000000
> diff --git a/tools/arch/ia64/include/uapi/asm/mman.h b/tools/arch/ia64/include/uapi/asm/mman.h
> deleted file mode 100644
> index 2a19bb1db4ab6076..0000000000000000
> diff --git a/usr/include/Makefile b/usr/include/Makefile
> index 07796df0a295b960..338c81f1fcf310e0 100644
> --- a/usr/include/Makefile
> +++ b/usr/include/Makefile
> @@ -59,12 +59,6 @@ ifeq ($(SRCARCH),arc)
> no-header-test += linux/bpf_perf_event.h
> endif
>
> -ifeq ($(SRCARCH),ia64)
> -no-header-test += asm/setup.h
> -no-header-test += asm/sigcontext.h
> -no-header-test += linux/if_bonding.h
> -endif
> -
> ifeq ($(SRCARCH),powerpc)
> no-header-test += linux/bpf_perf_event.h
> endif
> --
> 2.39.1
>

2023-02-15 16:58:42

by Guenter Roeck

[permalink] [raw]

Subject: Re: [RFC PATCH 1/5] arch: Remove Itanium (IA-64) architecture

2023-02-15 17:00:00

by Ard Biesheuvel

[permalink] [raw]

Subject: Re: [RFC PATCH 1/5] arch: Remove Itanium (IA-64) architecture

On Wed, 15 Feb 2023 at 17:58, Guenter Roeck <[email protected]> wrote:
>
> On Wed, Feb 15, 2023 at 11:00:04AM +0100, Ard Biesheuvel wrote:
> > Itanium is the original architecture for which EFI was developed, and
> > the way Linux supports it deviates significantly from other
> > architectures.
> >
> > So it is anyone's guess whether the ongoing maintenance and developement
> > of the EFI subsystem has regressed Itanium or not - QEMU no longer
> > implements support for it, and so there is zero test coverage using
> > actual hardware.
> >
> > Note that the Intel firmware team themselves already removed all IA-64
> > support from the Tianocore/EDK2 reference implementation of EFI in 2018,
> > so let's follow suit, and drop IA-64 from Linux as well.
> >
> > Acked-by: Tony Luck <[email protected]>
> > Signed-off-by: Ard Biesheuvel <[email protected]>
>
> Trying again since the previous message bounced with "message too long".
>
> Acked-by: Guenter Roeck <[email protected]>
>
> Sorry for the noise for anyone receiving this twice.
>

Thanks, and this is my fault really - I used the -D option to omit the
pre-images but the patch is still >100k :-(

2023-02-15 17:00:49

by Ard Biesheuvel

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

On Wed, 15 Feb 2023 at 17:50, Palmer Dabbelt <[email protected]> wrote:
>
> On Wed, 15 Feb 2023 02:00:03 PST (-0800), [email protected] wrote:
> > The IA64 port of Linux has no maintainer, and according to a report from
> > its only remaining user [0], it has been broken for a month and nobody
> > cares.
> >
> > Given that keeping a complex but unused architecture alive uses up
> > valuable developer bandwidth, let's just get rid of it.
> >
> > This supersedes my patch proposing to mark it as 'dead', which received
> > no replies from anyone that wants to keep it alive. [1]
> >
> > [0] https://www.spinics.net/lists/linux-ia64/msg21926.html
> > [1] https://lore.kernel.org/all/[email protected]/
> >
> > Cc: Jonathan Corbet <[email protected]>
> > Cc: Arnd Bergmann <[email protected]>
> > Cc: Tony Luck <[email protected]>
> > Cc: Jessica Clarke <[email protected]>
> > Cc: John Paul Adrian Glaubitz <[email protected]>
> > Cc: Matthew Wilcox <[email protected]>
> > Cc: Marc Zyngier <[email protected]>
> > Cc: Guenter Roeck <[email protected]>
> > Cc: Linus Torvalds <[email protected]>
> > Cc: [email protected]
> >
> > Ard Biesheuvel (5):
> > arch: Remove Itanium (IA-64) architecture
> > kernel: Drop IA64 support from sig_fault handlers
> > Documentation: Drop IA64 from feature descriptions
> > lib/raid6: Drop IA64 support
> > Documentation: Drop or replace remaining mentions of IA64
>
> Not sure if I'm missing it in the diff, but it looks like there's also a
> bunch of "#ifdef __ia64__" and "#ifdef __IA64__" type code spread
> throughout the kernel. I didn't look at the actual diff, but it's in
> files that aren't showing up in the diffstat.
>

Thanks for taking a look. It seems I indeed missed a couple.

> Just "git grep -i __ia64__" lists a bunch. I didn't look at all of
> them, but at least spot checking include/acpi/actypes.h looks like it's
> a real Itanium workaround. If the arch goes, it's probbaly worth
> removing those too?
>

The ACPI code is synced with another project, so I didn't touch it.
Same goes for some other header files where IA-64 is referenced, e.g.,
in the PE/COFF header stuff.

> There's also some mentions of "Itanium" in Documentation outside that
> don't look like they got caught here. Not sure if they'd be worth
> getting rid of, though as they could still be useful examples. The
> blurb in Documentation/memory-barriers.txt looks pretty port-specific,
> though.
>

Yeah, I don't think it is necessary to rewrite history soviet-style,
so some remaining references are fine IMHO.

2023-02-15 18:20:53

by Palmer Dabbelt

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

On Wed, 15 Feb 2023 09:00:28 PST (-0800), [email protected] wrote:
> On Wed, 15 Feb 2023 at 17:50, Palmer Dabbelt <[email protected]> wrote:
>>
>> On Wed, 15 Feb 2023 02:00:03 PST (-0800), [email protected] wrote:
>> > The IA64 port of Linux has no maintainer, and according to a report from
>> > its only remaining user [0], it has been broken for a month and nobody
>> > cares.
>> >
>> > Given that keeping a complex but unused architecture alive uses up
>> > valuable developer bandwidth, let's just get rid of it.
>> >
>> > This supersedes my patch proposing to mark it as 'dead', which received
>> > no replies from anyone that wants to keep it alive. [1]
>> >
>> > [0] https://www.spinics.net/lists/linux-ia64/msg21926.html
>> > [1] https://lore.kernel.org/all/[email protected]/
>> >
>> > Cc: Jonathan Corbet <[email protected]>
>> > Cc: Arnd Bergmann <[email protected]>
>> > Cc: Tony Luck <[email protected]>
>> > Cc: Jessica Clarke <[email protected]>
>> > Cc: John Paul Adrian Glaubitz <[email protected]>
>> > Cc: Matthew Wilcox <[email protected]>
>> > Cc: Marc Zyngier <[email protected]>
>> > Cc: Guenter Roeck <[email protected]>
>> > Cc: Linus Torvalds <[email protected]>
>> > Cc: [email protected]
>> >
>> > Ard Biesheuvel (5):
>> > arch: Remove Itanium (IA-64) architecture
>> > kernel: Drop IA64 support from sig_fault handlers
>> > Documentation: Drop IA64 from feature descriptions
>> > lib/raid6: Drop IA64 support
>> > Documentation: Drop or replace remaining mentions of IA64
>>
>> Not sure if I'm missing it in the diff, but it looks like there's also a
>> bunch of "#ifdef __ia64__" and "#ifdef __IA64__" type code spread
>> throughout the kernel. I didn't look at the actual diff, but it's in
>> files that aren't showing up in the diffstat.
>>
>
> Thanks for taking a look. It seems I indeed missed a couple.
>
>> Just "git grep -i __ia64__" lists a bunch. I didn't look at all of
>> them, but at least spot checking include/acpi/actypes.h looks like it's
>> a real Itanium workaround. If the arch goes, it's probbaly worth
>> removing those too?
>>
>
> The ACPI code is synced with another project, so I didn't touch it.
> Same goes for some other header files where IA-64 is referenced, e.g.,
> in the PE/COFF header stuff.

Thanks, I didn't know that. Pretty sure there's some scattered in
drivers, but...

>> There's also some mentions of "Itanium" in Documentation outside that
>> don't look like they got caught here. Not sure if they'd be worth
>> getting rid of, though as they could still be useful examples. The
>> blurb in Documentation/memory-barriers.txt looks pretty port-specific,
>> though.
>>
>
> Yeah, I don't think it is necessary to rewrite history soviet-style,
> so some remaining references are fine IMHO.

That seems reasonable to me -- assuming the port goes the rest is just
dead code so it'll filter out over time (presumably all over userspace
too, which will take a while).

2023-02-15 19:31:15

by Linus Torvalds

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

On Wed, Feb 15, 2023 at 2:17 AM John Paul Adrian Glaubitz
<[email protected]> wrote:
>
> It's not that I don't care. I just haven't been able to bisect the bug .yet

I'm not a fan of ia64 as an architecture, but it's a bit sad to remove
it entirely. It's not like it's been a huge maintenance burden in
general.

That said, if it doesn't work, and nobody has the time and/or
inclination to figure out why, I don't really see any alternative.

Linus

2023-02-15 19:43:35

by Luck, Tony

[permalink] [raw]

Subject: RE: [RFC PATCH 0/5] Retire IA64/Itanium support

> I'm not a fan of ia64 as an architecture, but it's a bit sad to remove
> it entirely. It's not like it's been a huge maintenance burden in
> general.

Maybe you don't see others pain? I added Al Viro ... perhaps
he'll replay some of his thoughts from trying to make signals
and other stuff work correctly on ia64.

-Tony

2023-02-15 20:09:03

by Linus Torvalds

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

On Wed, Feb 15, 2023 at 11:43 AM Luck, Tony <[email protected]> wrote:
>
> Maybe you don't see others pain? I added Al Viro ... perhaps
> he'll replay some of his thoughts from trying to make signals
> and other stuff work correctly on ia64.

Well, as long as it's ia64-specific, I'll just go "hey, it was Al's
choice to look at that code".

IOW, I'm more worried about "ia64 makes it a pain to make _generic_ changes".

IOW, doing something like this:

git log -p --no-merges --since=1.year arch/ia64/

to see what kind of pain ia64 parts of patches have caused, about a
third of them are that "look, somebody cared about ia64 explicitly".

And then the rest are trivial fixups for generic changes that aren't
any different from any other architecture. The only half-way
complicated one is the SET_FS removal, and I don't think it was any
worse than most other architectures.

IOW, it doesn't look like ia64 causes any huge issues _per_se_. I
suspect alpha continues to be more of a pain.

That said, it's entirely possible I've missed some particular painpoint.

But when it's actively known to be broken and nobody has time or
interest to look at it, at that point the "it doesn't look any more
painful than other architectures" becomes kind of moot.

Linus

2023-02-15 23:09:23

by John Paul Adrian Glaubitz

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

Hi Linus!

On Wed, 2023-02-15 at 11:30 -0800, Linus Torvalds wrote:
> On Wed, Feb 15, 2023 at 2:17 AM John Paul Adrian Glaubitz
> <[email protected]> wrote:
> >
> > It's not that I don't care. I just haven't been able to bisect the bug .yet
>
> I'm not a fan of ia64 as an architecture, but it's a bit sad to remove
> it entirely. It's not like it's been a huge maintenance burden in
> general.

I agree. It would be sad to see it go.

> That said, if it doesn't work, and nobody has the time and/or
> inclination to figure out why, I don't really see any alternative.

That's not really what I meant though. I definitely have the time to look
after the architecture as I am also maintaining it in Debian.

What I meant here is that I simply hadn't had the time yet to fully debug
this particular regression that was introduced with 6.1. I did actually
start a bisect and got close to the problematic commit as I got distracted
with my day job.

My plan was definitely to continue debugging the problem in the coming weekend
and at least find the commit that introduced the regression. I always have an
Itanium server ready for testing kernels that I can power on and control remotely
via its built-in management system.

Adrian

--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer
`. `' Physicist
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

2023-02-15 23:14:05

by John Paul Adrian Glaubitz

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

On Wed, 2023-02-15 at 12:08 -0800, Linus Torvalds wrote:
> But when it's actively known to be broken and nobody has time or
> interest to look at it, at that point the "it doesn't look any more
> painful than other architectures" becomes kind of moot.

Let me look after it in the weekend and let's see whether we can unbreak
it. I don't think there is really a big issue. The last time we had a
similar issue was the regression introduced by 974b9b2c68f3 which got fixed
with the simple fix in bd05220c7be3.

It's probably similarly trivial to fix the current regression.

Adrian

--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer
`. `' Physicist
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

2023-02-16 05:05:15

by Mike Rapoport

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

Hi Linus,

On Wed, Feb 15, 2023 at 12:08:28PM -0800, Linus Torvalds wrote:
> On Wed, Feb 15, 2023 at 11:43 AM Luck, Tony <[email protected]> wrote:
> >
> > Maybe you don't see others pain? I added Al Viro ... perhaps
> > he'll replay some of his thoughts from trying to make signals
> > and other stuff work correctly on ia64.
>
> Well, as long as it's ia64-specific, I'll just go "hey, it was Al's
> choice to look at that code".
>
> IOW, I'm more worried about "ia64 makes it a pain to make _generic_ changes".
>
> IOW, doing something like this:
>
> git log -p --no-merges --since=1.year arch/ia64/
>
> to see what kind of pain ia64 parts of patches have caused, about a
> third of them are that "look, somebody cared about ia64 explicitly".

I remember that when I was doing cleanups of mm initialization, ia64
required special care several times.

> That said, it's entirely possible I've missed some particular painpoint.

The largest painpoint IMO is absence of any ability to test ia64 except
sending patches to Adrian in a hope he has time to give them a whirl.

> Linus

--
Sincerely yours,
Mike.

2023-02-22 22:23:49

by matoro

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

On 2023-02-15 18:13, John Paul Adrian Glaubitz wrote:
> On Wed, 2023-02-15 at 12:08 -0800, Linus Torvalds wrote:
>> But when it's actively known to be broken and nobody has time or
>> interest to look at it, at that point the "it doesn't look any more
>> painful than other architectures" becomes kind of moot.
>
> Let me look after it in the weekend and let's see whether we can
> unbreak
> it. I don't think there is really a big issue. The last time we had a
> similar issue was the regression introduced by 974b9b2c68f3 which got
> fixed
> with the simple fix in bd05220c7be3.
>
> It's probably similarly trivial to fix the current regression.
>
> Adrian

Just for reference, this specific bug does not seem to be universal, but
possibly only applies to a specific configuration. I have observed no
problems with 6.1 on my rx 2800 i2 and just booted 6.2 with no issues.
Please feel free to try out my kernel config here:
https://dpaste.com/43CACUUG8.txt

A possible guess is initramfs-related, as according to your logs on the
Debian ML the hang happens shortly after initramfs unpacking, and I do
not use an initramfs.

2023-03-17 23:04:32

by Florian Weimer

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

* Ard Biesheuvel:

> The IA64 port of Linux has no maintainer, and according to a report from
> its only remaining user [0], it has been broken for a month and nobody
> cares.
>
> Given that keeping a complex but unused architecture alive uses up
> valuable developer bandwidth, let's just get rid of it.
>
> This supersedes my patch proposing to mark it as 'dead', which received
> no replies from anyone that wants to keep it alive. [1]

Is this still going ahead?

In userspace, ia64 is of course full of special cases, too, so many of
us really want to see it gone, but we can't really start the removal
process while there is still kernel support.

2023-05-12 14:55:23

by Ard Biesheuvel

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

On Fri, 17 Mar 2023 at 23:56, Florian Weimer <[email protected]> wrote:
>
> * Ard Biesheuvel:
>
> > The IA64 port of Linux has no maintainer, and according to a report from
> > its only remaining user [0], it has been broken for a month and nobody
> > cares.
> >
> > Given that keeping a complex but unused architecture alive uses up
> > valuable developer bandwidth, let's just get rid of it.
> >
> > This supersedes my patch proposing to mark it as 'dead', which received
> > no replies from anyone that wants to keep it alive. [1]
>
> Is this still going ahead?
>
> In userspace, ia64 is of course full of special cases, too, so many of
> us really want to see it gone, but we can't really start the removal
> process while there is still kernel support.

I brought this up again [0] in the context of GRUB (which has similar
issues related to EFI the the kernel has) and Adrian suggested to
raise this discussion more widely, perhaps on the distributions
mailing list, among other places.

Do you have any recommendations for a venue where we might find the
right mix of people who can drive this to a conclusion one way or the
other?

Thanks,

[0] https://lists.gnu.org/archive/html/grub-devel/2023-05/msg00068.html

2023-05-12 15:33:59

by Florian Weimer

[permalink] [raw]

Subject: Re: [RFC PATCH 0/5] Retire IA64/Itanium support

* Ard Biesheuvel:

> I brought this up again [0] in the context of GRUB (which has similar
> issues related to EFI the the kernel has) and Adrian suggested to
> raise this discussion more widely, perhaps on the distributions
> mailing list, among other places.
>
> Do you have any recommendations for a venue where we might find the
> right mix of people who can drive this to a conclusion one way or the
> other?

> [0] https://lists.gnu.org/archive/html/grub-devel/2023-05/msg00068.html

I think Adrian's list of lists to concat looks reasonable.