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charset="iso-8859-1" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 X-OriginatorOrg: csgroup.eu X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MRZP264MB2988.FRAP264.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-Network-Message-Id: f696c67b-593d-462d-b02e-08d9ba6eb986 X-MS-Exchange-CrossTenant-originalarrivaltime: 08 Dec 2021 17:18:17.0540 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 9914def7-b676-4fda-8815-5d49fb3b45c8 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: vkGnQDKXslgBy5m0aaC0dXUkkDKF/YGs+9O7f2SHtNXYGJLoCMD42ReOh6DJdpUQwzpfTjWoUvZ3sddxrvaTgdDKFiMvUwnUjud6/821f/o= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MR2P264MB0228 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Rebased on top of Nic's series "powerpc: Make hash MMU code build configurable" in today's powerpc/merge-test on github This series converts powerpc to default topdown mmap layout. powerpc requires its own arch_get_unmapped_area() only when slices are needed, which is only for book3s/64. First part of the series moves slices into book3s/64 specific directories and cleans up other subarchitectures. Last part converts to default topdown mmap layout. A small modification is done to core mm to allow powerpc to still provide its own arch_randomize_brk() Another modification is done to core mm to allow powerpc to use generic versions of get_unmapped_area functions for Radix while still providing its own implementation for Hash, the selection between Radix and Hash being doing at runtime. Signed-off-by: Christophe Leroy Changes in v4: - Move arch_randomize_brk() simplification out of this series - Add a change to core mm to enable using generic implementation while providing arch specific one at the same time. - Reworked radix get_unmapped_area to use generic implementation - Rebase on top of Nic's series v6 Changes in v3: - Fixed missing in last patch - Added a patch to move SZ_1T out of drivers/pci/controller/pci-xgene.c Changes in v2: - Moved patch 4 before patch 2 - Make generic arch_randomize_brk() __weak - Added patch 9 Christophe Leroy (10): mm: Allow arch specific arch_randomize_brk() with CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT mm, hugetlbfs: Allow an arch to always use generic versions of get_unmapped_area functions powerpc/mm: Move vma_mmu_pagesize() powerpc/mm: Make slice specific to book3s/64 powerpc/mm: Remove CONFIG_PPC_MM_SLICES powerpc/mm: Use generic_get_unmapped_area() and call it from arch_get_unmapped_area() powerpc/mm: Use generic_hugetlb_get_unmapped_area() powerpc/mm: Move get_unmapped_area functions to slice.c powerpc/mm: Convert to default topdown mmap layout powerpc/mm: Properly randomise mmap with slices arch/powerpc/Kconfig | 2 +- arch/powerpc/include/asm/book3s/64/hugetlb.h | 4 - arch/powerpc/include/asm/book3s/64/mmu-hash.h | 1 + arch/powerpc/include/asm/book3s/64/mmu.h | 6 - arch/powerpc/include/asm/book3s/64/slice.h | 24 ++ arch/powerpc/include/asm/hugetlb.h | 2 +- arch/powerpc/include/asm/paca.h | 7 - arch/powerpc/include/asm/page.h | 1 - arch/powerpc/include/asm/processor.h | 2 - arch/powerpc/include/asm/slice.h | 46 ---- arch/powerpc/kernel/paca.c | 5 - arch/powerpc/mm/Makefile | 3 +- arch/powerpc/mm/book3s64/Makefile | 2 +- arch/powerpc/mm/book3s64/hash_utils.c | 14 - arch/powerpc/mm/book3s64/radix_hugetlbpage.c | 55 ---- arch/powerpc/mm/{ => book3s64}/slice.c | 71 ++++- arch/powerpc/mm/hugetlbpage.c | 34 --- arch/powerpc/mm/mmap.c | 256 ------------------ arch/powerpc/mm/nohash/mmu_context.c | 9 - arch/powerpc/mm/nohash/tlb.c | 4 - arch/powerpc/platforms/Kconfig.cputype | 4 - fs/hugetlbfs/inode.c | 17 +- include/linux/hugetlb.h | 5 + include/linux/sched/mm.h | 9 + mm/mmap.c | 31 ++- mm/util.c | 2 +- 26 files changed, 139 insertions(+), 477 deletions(-) delete mode 100644 arch/powerpc/include/asm/slice.h rename arch/powerpc/mm/{ => book3s64}/slice.c (91%) delete mode 100644 arch/powerpc/mm/mmap.c -- 2.33.1