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Date: Tue, 27 Nov 2012 16:17:55 -0500 From: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> To: Yinghai Lu <yinghai@...nel.org> Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>, Jacob Shin <jacob.shin@....com>, Andrew Morton <akpm@...ux-foundation.org>, Stefano Stabellini <stefano.stabellini@...citrix.com>, linux-kernel@...r.kernel.org Subject: Re: [PATCH v8 00/46] x86, mm: map ram from top-down with BRK and memblock. On Fri, Nov 16, 2012 at 07:38:37PM -0800, Yinghai Lu wrote: > rebase patchset together tip/x86/mm2 on top of linus v3.7-rc4 > Pardon me for taking so long to respond. Right after you posted it I had a mini-conference and then vacation and I am just now unburrying myself from email avalanche. I will take a look at them tomorrow and review them. > so this one include patchset : x86, mm: init_memory_mapping cleanup > in tip/x86/mm2 > --- > Current kernel init memory mapping between [0, TOML) and [4G, TOMH) > Some AMD systems have mem hole between 4G and TOMH, around 1T. > According to HPA, we should only mapping ram range. > 1. Seperate calculate_table_space_size and find_early_page_table out with > init_memory_mapping. > 2. For all ranges, will allocate page table one time > 3. init mapping for ram range one by one. > --- > > pre mapping page table patcheset includes: > 1. use brk to mapping first PMD_SIZE range under end of ram. > 2. top down to initialize page table range by range. > 3. get rid of calculate_page_table, and find_early_page_table. > 4. remove early_ioremap in page table accessing. > 5. remove workaround in xen to mark page RO. > > v2: changes, update xen interface about pagetable_reserve, so not > use pgt_buf_* in xen code directly. > v3: use range top-down to initialize page table, so will not use > calculating/find early table anymore. > also reorder the patches sequence. > v4: add mapping_mark_page_ro to fix xen, also move pgt_buf_* to init.c > and merge alloc_low_page(), and for 32bit need to add alloc_low_pages > to fix 32bit kmap setting. > v5: remove mark_page_ro workaround and add another 5 cleanup patches. > v6: rebase on v3.7-rc4 and add 4 cleanup patches. > v7: fix max_low_pfn_mapped for xen domu memmap that does not have hole under 4g > add pfn_range_is_mapped() calling for left over. > v8: updated some changelog and add some Acks from Stefano. > Put v8 on every patch's subject, so hpa would not check old version. > hope could catch window for v3.8 > > could be found at: > git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git for-x86-mm > > Jacob Shin (3): > x86, mm: if kernel .text .data .bss are not marked as E820_RAM, complain and fix > x86, mm: Fixup code testing if a pfn is direct mapped > x86, mm: Only direct map addresses that are marked as E820_RAM > > Stefano Stabellini (1): > x86, mm: Add pointer about Xen mmu requirement for alloc_low_pages > > Yinghai Lu (42): > x86, mm: Add global page_size_mask and probe one time only > x86, mm: Split out split_mem_range from init_memory_mapping > x86, mm: Move down find_early_table_space() > x86, mm: Move init_memory_mapping calling out of setup.c > x86, mm: Revert back good_end setting for 64bit > x86, mm: Change find_early_table_space() paramters > x86, mm: Find early page table buffer together > x86, mm: Separate out calculate_table_space_size() > x86, mm: Set memblock initial limit to 1M > x86, mm: use pfn_range_is_mapped() with CPA > x86, mm: use pfn_range_is_mapped() with gart > x86, mm: use pfn_range_is_mapped() with reserve_initrd > x86, mm: relocate initrd under all mem for 64bit > x86, mm: Align start address to correct big page size > x86, mm: Use big page size for small memory range > x86, mm: Don't clear page table if range is ram > x86, mm: Break down init_all_memory_mapping > x86, mm: setup page table in top-down > x86, mm: Remove early_memremap workaround for page table accessing on 64bit > x86, mm: Remove parameter in alloc_low_page for 64bit > x86, mm: Merge alloc_low_page between 64bit and 32bit > x86, mm: Move min_pfn_mapped back to mm/init.c > x86, mm, Xen: Remove mapping_pagetable_reserve() > x86, mm: Add alloc_low_pages(num) > x86, mm: only call early_ioremap_page_table_range_init() once > x86, mm: Move back pgt_buf_* to mm/init.c > x86, mm: Move init_gbpages() out of setup.c > x86, mm: change low/hignmem_pfn_init to static on 32bit > x86, mm: Move function declaration into mm_internal.h > x86, mm: Add check before clear pte above max_low_pfn on 32bit > x86, mm: use round_up/down in split_mem_range() > x86, mm: use PFN_DOWN in split_mem_range() > x86, mm: use pfn instead of pos in split_mem_range > x86, mm: use limit_pfn for end pfn > x86, mm: Unifying after_bootmem for 32bit and 64bit > x86, mm: Move after_bootmem to mm_internel.h > x86, mm: Use clamp_t() in init_range_memory_mapping > x86, mm: kill numa_free_all_bootmem() > x86, mm: kill numa_64.h > sparc, mm: Remove calling of free_all_bootmem_node() > mm: Kill NO_BOOTMEM version free_all_bootmem_node() > x86, mm: Let "memmap=" take more entries one time > > arch/sparc/mm/init_64.c | 24 +- > arch/x86/include/asm/init.h | 21 +-- > arch/x86/include/asm/numa.h | 2 - > arch/x86/include/asm/numa_64.h | 6 - > arch/x86/include/asm/page_types.h | 2 + > arch/x86/include/asm/pgtable.h | 2 + > arch/x86/include/asm/pgtable_types.h | 1 - > arch/x86/include/asm/x86_init.h | 12 - > arch/x86/kernel/acpi/boot.c | 1 - > arch/x86/kernel/amd_gart_64.c | 5 +- > arch/x86/kernel/cpu/amd.c | 9 +- > arch/x86/kernel/cpu/intel.c | 1 - > arch/x86/kernel/e820.c | 16 ++- > arch/x86/kernel/setup.c | 121 ++++------ > arch/x86/kernel/x86_init.c | 4 - > arch/x86/mm/init.c | 449 ++++++++++++++++++++++------------ > arch/x86/mm/init_32.c | 106 +++++--- > arch/x86/mm/init_64.c | 140 ++++------- > arch/x86/mm/mm_internal.h | 19 ++ > arch/x86/mm/numa_64.c | 13 - > arch/x86/mm/pageattr.c | 16 +- > arch/x86/platform/efi/efi.c | 7 +- > arch/x86/xen/mmu.c | 28 -- > include/linux/mm.h | 1 - > mm/nobootmem.c | 14 - > 25 files changed, 516 insertions(+), 504 deletions(-) > delete mode 100644 arch/x86/include/asm/numa_64.h > create mode 100644 arch/x86/mm/mm_internal.h > > -- > 1.7.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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