There is duplication and subtle differences between the 32-bit and 64-bit MMU code for historical reasons.
Let's refactor the code for more similarity, implement flush_cacheable_pages for 32-bit and prepare for observing break-before-make requirements. Ahmad Fatoum (22): ARM: mmu: introduce new maptype_t type ARM: mmu: compare only lowest 16 bits for map type ARM: mmu: prefix pre-MMU functions with early_ ARM: mmu: panic when alloc_pte fails ARM: mmu32: introduce new mmu_addr_t type ARM: mmu: provide zero page control in PBL ARM: mmu: print map type as string ARM: mmu64: rename create_sections to __arch_remap_range ARM: mmu: move get_pte_attrs call into __arch_remap_range ARM: mmu64: print debug message in __arch_remap_range ARM: mmu: make force_pages a maptype_t flag ARM: mmu64: move granule_size to the top of the file ARM: mmu64: fix benign off-by-one in flush_cacheable_pages ARM: mmu64: make flush_cacheable_pages less 64-bit dependent ARM: mmu64: allow asserting last level page in __find_pte ARM: mmu64: rename __find_pte to find_pte ARM: mmu32: rework find_pte to have ARM64 find_pte semantics ARM: mmu64: factor out flush_cacheable_pages for reusability ARM: mmu32: flush only cacheable pages on remap ARM: mmu32: factor out set_pte_range helper ARM: mmu64: factor out set_pte_range helper ARM: mmu: define dma_alloc_writecombine in common code arch/arm/cpu/Makefile | 2 +- arch/arm/cpu/flush_cacheable_pages.h | 77 +++++ arch/arm/cpu/mmu-common.c | 23 +- arch/arm/cpu/mmu-common.h | 29 +- arch/arm/cpu/mmu_32.c | 237 +++++++++----- arch/arm/cpu/mmu_32.h | 2 + arch/arm/cpu/mmu_64.c | 445 ++++++++++++--------------- arch/arm/cpu/mmu_64.h | 2 + arch/arm/include/asm/mmu.h | 2 +- arch/powerpc/cpu-85xx/mmu.c | 4 +- arch/powerpc/include/asm/mmu.h | 2 +- commands/memtest.c | 8 +- include/linux/types.h | 2 + include/mmu.h | 25 +- include/zero_page.h | 2 +- 15 files changed, 509 insertions(+), 353 deletions(-) create mode 100644 arch/arm/cpu/flush_cacheable_pages.h -- 2.39.5
