Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751720AbdLAVjP (ORCPT ); Fri, 1 Dec 2017 16:39:15 -0500 Received: from mail-pf0-f196.google.com ([209.85.192.196]:40037 "EHLO mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750921AbdLAVjO (ORCPT ); Fri, 1 Dec 2017 16:39:14 -0500 X-Google-Smtp-Source: AGs4zMb8C18bYDWJi8DEQLNJqdL8plBtJLLt1bJfFWX6QofS4Y7jddcVkpHA7iSJD9dd9zlfLckiXw== Date: Fri, 01 Dec 2017 13:39:12 -0800 (PST) X-Google-Original-Date: Fri, 01 Dec 2017 13:37:32 PST (-0800) Subject: [GIT PULL] RISC-V Cleanups and ABI Fixes for 4.15-rc2 CC: linux-kernel@vger.kernel.org, patches@groups.riscv.org From: Palmer Dabbelt To: Linus Torvalds Message-ID: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6365 Lines: 132 The following changes since commit 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323: Linux 4.15-rc1 (2017-11-26 16:01:47 -0800) are available in the git repository at: ssh://git@gitolite.kernel.org/pub/scm/linux/kernel/git/palmer/linux.git tags/riscv-for-linus-4.15-rc2_cleanups for you to fetch changes up to 3b62de26cf5ef17340a0e986d3e53eb4f74f96d5: RISC-V: Fixes for clean allmodconfig build (2017-12-01 13:31:31 -0800) ---------------------------------------------------------------- RISC-V Cleanups and ABI Fixes for 4.15-rc2 This tag contains a handful of small cleanups that are a result of feedback that didn't make it into our original patch set, either because the feedback hadn't been given yet, I missed the original emails, or we weren't ready to submit the changes yet. I've been maintaining the various cleanup patch sets I have as their own branches, which I then merged together and signed. Each merge commit has a short summary of the changes, and each branch is based on your latest tag (4.15-rc1, in this case). If this isn't the right way to do this then feel free to suggest something else, but it seems sane to me. Here's a short summary of the changes, roughly in order of how interesting they are. * libgcc.h has been moved from include/lib, where it's the only member, to include/linux. This is meant to avoid tab completion conflicts. * VDSO entries for clock_get/gettimeofday/getcpu have been added. These are simple syscalls now, but we want to let glibc use them from the start so we can make them faster later. * A VDSO entry for instruction cache flushing has been added so userspace can flush the instruction cache. * The VDSO symbol versions for __vdso_cmpxchg{32,64} have been removed, as those VDSO entries don't actually exist. * __io_writes has been corrected to respect the given type. * A new READ_ONCE in arch_spin_is_locked(). * __test_and_op_bit_ord() is now actually ordered. * Various small fixes throughout the tree to enable allmodconfig to build cleanly. * Removal of some dead code in our atomic support headers. * Improvements to various comments in our atomic support headers. ---------------------------------------------------------------- Andrew Waterman (3): RISC-V: Add VDSO entries for clock_get/gettimeofday/getcpu RISC-V: Flush I$ when making a dirty page executable RISC-V: Allow userspace to flush the instruction cache Christoph Hellwig (1): move libgcc.h to include/linux Olof Johansson (8): RISC-V: use generic serial.h RISC-V: use RISCV_{INT,SHORT} instead of {INT,SHORT} for asm macros RISC-V: io.h: type fixes for warnings RISC-V: move empty_zero_page definition to C and export it RISC-V: Export some expected symbols for modules RISC-V: Provide stub of setup_profiling_timer() RISC-V: Use define for get_cycles like other architectures RISC-V: Add missing include Palmer Dabbelt (16): RISC-V: Remove __vdso_cmpxchg{32,64} symbol versions RISC-V: Remove unused arguments from ATOMIC_OP RISC-V: Comment on why {,cmp}xchg is ordered how it is RISC-V: Remove __smp_bp__{before,after}_atomic RISC-V: Remove smb_mb__{before,after}_spinlock() RISC-V: __test_and_op_bit_ord should be strongly ordered RISC-V: Add READ_ONCE in arch_spin_is_locked() RISC-V: `sfence.vma` orderes the instruction cache RISC-V: remove spin_unlock_wait() RISC-V: Clean up an unused include RISC-V: __io_writes should respect the length argument RISC-V Atomic Cleanups RISC-V: User-Visible Changes RISC-V: __io_writes should respect the length argument move libgcc.h to include/linux RISC-V: Fixes for clean allmodconfig build arch/riscv/include/asm/Kbuild | 1 + arch/riscv/include/asm/asm.h | 12 ++-- arch/riscv/include/asm/atomic.h | 103 +++++++++++++++++---------------- arch/riscv/include/asm/barrier.h | 23 -------- arch/riscv/include/asm/bitops.h | 2 +- arch/riscv/include/asm/bug.h | 6 +- arch/riscv/include/asm/cacheflush.h | 30 ++++++++-- arch/riscv/include/asm/io.h | 18 +++--- arch/riscv/include/asm/mmu.h | 4 ++ arch/riscv/include/asm/mmu_context.h | 45 ++++++++++++++ arch/riscv/include/asm/pgtable.h | 58 ++++++++++--------- arch/riscv/include/asm/spinlock.h | 11 +--- arch/riscv/include/asm/timex.h | 3 +- arch/riscv/include/asm/tlbflush.h | 7 ++- arch/riscv/include/asm/vdso-syscalls.h | 28 +++++++++ arch/riscv/include/asm/vdso.h | 4 ++ arch/riscv/kernel/head.S | 3 - arch/riscv/kernel/riscv_ksyms.c | 3 + arch/riscv/kernel/setup.c | 5 ++ arch/riscv/kernel/smp.c | 55 ++++++++++++++++++ arch/riscv/kernel/sys_riscv.c | 33 ++++++++++- arch/riscv/kernel/syscall_table.c | 2 + arch/riscv/kernel/vdso/Makefile | 7 ++- arch/riscv/kernel/vdso/clock_getres.S | 26 +++++++++ arch/riscv/kernel/vdso/clock_gettime.S | 26 +++++++++ arch/riscv/kernel/vdso/flush_icache.S | 31 ++++++++++ arch/riscv/kernel/vdso/getcpu.S | 26 +++++++++ arch/riscv/kernel/vdso/gettimeofday.S | 26 +++++++++ arch/riscv/kernel/vdso/vdso.lds.S | 7 ++- arch/riscv/lib/delay.c | 1 + arch/riscv/mm/Makefile | 1 + arch/riscv/mm/cacheflush.c | 23 ++++++++ arch/riscv/mm/ioremap.c | 2 +- include/{lib => linux}/libgcc.h | 0 lib/ashldi3.c | 2 +- lib/ashrdi3.c | 2 +- lib/cmpdi2.c | 2 +- lib/lshrdi3.c | 2 +- lib/muldi3.c | 2 +- lib/ucmpdi2.c | 2 +- 40 files changed, 498 insertions(+), 146 deletions(-) create mode 100644 arch/riscv/include/asm/vdso-syscalls.h create mode 100644 arch/riscv/kernel/vdso/clock_getres.S create mode 100644 arch/riscv/kernel/vdso/clock_gettime.S create mode 100644 arch/riscv/kernel/vdso/flush_icache.S create mode 100644 arch/riscv/kernel/vdso/getcpu.S create mode 100644 arch/riscv/kernel/vdso/gettimeofday.S create mode 100644 arch/riscv/mm/cacheflush.c rename include/{lib => linux}/libgcc.h (100%)