Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756340Ab0KLSBA (ORCPT ); Fri, 12 Nov 2010 13:01:00 -0500 Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:50887 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756045Ab0KLSA6 (ORCPT ); Fri, 12 Nov 2010 13:00:58 -0500 From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 00/20] ARM: Add support for the Large Physical Address Extensions Date: Fri, 12 Nov 2010 18:00:20 +0000 Message-Id: <1289584840-18097-1-git-send-email-catalin.marinas@arm.com> X-Mailer: git-send-email 1.7.3.2.164.g6f10c X-OriginalArrivalTime: 12 Nov 2010 18:00:48.0016 (UTC) FILETIME=[88FB3900:01CB8293] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5315 Lines: 110 Hi, This set of patches adds support for the Large Physical Extensions on the ARM architecture (available with the Cortex-A15 processor). LPAE comes with a 3-level page table format (compared to 2-level for the classic one), allowing up to 40-bit physical address space. The ARM LPAE documentation is available from (free registration needed): http://infocenter.arm.com/help/topic/com.arm.doc.ddi0406b_virtualization_extns/index.html The full set of patches (kernel fixes, LPAE and support for an emulated Versatile Express with Cortex-A15 tile) is available on this branch: git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-2.6-cm.git arm-lpae Changelog: - Upgraded to latest mainline kernel (2.6.37-rc1) solving several conflicts. - Enable CONFIG_ARCH_DMA_ADDR_T_64BIT for future compatibility with the unified dma_addr_t patch. - PHYS_ADDR_FMT printk format changed to be ANSI C compliant. - Alignment fault now uses SIGBUS instead of SIGILL. - arch/arm/kernel/head.S modified to use SECTION_SHIFT and reduce the amount of #ifdef's. - setup_mm_for_reboot() modified for LPAE. - identity_mapping_add/del() modified for LPAE. - Removed FIRST_USER_PGD_NR definition as the place where it was used have been modified. Any comments are welcome. Thanks. Catalin Marinas (13): ARM: LPAE: Use PMD_(SHIFT|SIZE|MASK) instead of PGDIR_* ARM: LPAE: Factor out 2-level page table definitions into separate files ARM: LPAE: Do not assume Linux PTEs are always at PTRS_PER_PTE offset ARM: LPAE: Introduce L_PTE_NOEXEC and L_PTE_NOWRITE ARM: LPAE: Introduce the 3-level page table format definitions ARM: LPAE: Page table maintenance for the 3-level format ARM: LPAE: MMU setup for the 3-level page table format ARM: LPAE: Change setup_mm_for_reboot() to work with LPAE ARM: LPAE: Remove the FIRST_USER_PGD_NR and USER_PTRS_PER_PGD definitions ARM: LPAE: Add fault handling support ARM: LPAE: Add context switching support ARM: LPAE: Add SMP support for the 3-level page table format ARM: LPAE: Add the Kconfig entries Will Deacon (7): ARM: LPAE: use u32 instead of unsigned long for 32-bit ptes ARM: LPAE: use phys_addr_t instead of unsigned long for physical addresses ARM: LPAE: Use generic dma_addr_t type definition ARM: LPAE: mark memory banks with start > ULONG_MAX as highmem ARM: LPAE: use phys_addr_t for physical start address in early_mem ARM: LPAE: add support for ATAG_MEM64 ARM: LPAE: define printk format for physical addresses and page table entries arch/arm/Kconfig | 2 +- arch/arm/include/asm/cpu-multi32.h | 8 + arch/arm/include/asm/cpu-single.h | 4 + arch/arm/include/asm/memory.h | 17 +- arch/arm/include/asm/outercache.h | 14 +- arch/arm/include/asm/page-nommu.h | 8 +- arch/arm/include/asm/page.h | 42 +---- arch/arm/include/asm/pgalloc.h | 34 +++- arch/arm/include/asm/pgtable-2level-hwdef.h | 91 +++++++++ arch/arm/include/asm/pgtable-2level-types.h | 64 +++++++ arch/arm/include/asm/pgtable-2level.h | 147 +++++++++++++++ arch/arm/include/asm/pgtable-3level-hwdef.h | 78 ++++++++ arch/arm/include/asm/pgtable-3level-types.h | 55 ++++++ arch/arm/include/asm/pgtable-3level.h | 110 +++++++++++ arch/arm/include/asm/pgtable-hwdef.h | 81 +-------- arch/arm/include/asm/pgtable.h | 267 +++++++++++---------------- arch/arm/include/asm/proc-fns.h | 13 ++ arch/arm/include/asm/setup.h | 12 +- arch/arm/include/asm/types.h | 24 +-- arch/arm/kernel/compat.c | 4 +- arch/arm/kernel/head.S | 106 ++++++++---- arch/arm/kernel/module.c | 2 +- arch/arm/kernel/setup.c | 19 ++- arch/arm/kernel/smp.c | 43 ++++- arch/arm/mm/Kconfig | 13 ++ arch/arm/mm/alignment.c | 8 +- arch/arm/mm/context.c | 18 ++- arch/arm/mm/dma-mapping.c | 6 +- arch/arm/mm/fault.c | 88 +++++++++- arch/arm/mm/init.c | 6 +- arch/arm/mm/ioremap.c | 8 +- arch/arm/mm/mm.h | 8 +- arch/arm/mm/mmu.c | 99 +++++++--- arch/arm/mm/pgd.c | 20 ++- arch/arm/mm/proc-macros.S | 5 +- arch/arm/mm/proc-v7.S | 115 +++++++++++- 36 files changed, 1213 insertions(+), 426 deletions(-) create mode 100644 arch/arm/include/asm/pgtable-2level-hwdef.h create mode 100644 arch/arm/include/asm/pgtable-2level-types.h create mode 100644 arch/arm/include/asm/pgtable-2level.h create mode 100644 arch/arm/include/asm/pgtable-3level-hwdef.h create mode 100644 arch/arm/include/asm/pgtable-3level-types.h create mode 100644 arch/arm/include/asm/pgtable-3level.h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/