[PATCH v2 00/28] ARM MMU code improvements and on-demand PTE allocation
Andrey Smirnov
andrew.smirnov at gmail.com
Wed May 16 13:00:08 PDT 2018
Everyone:
With exeception of patch 27/28, all patches in this series are just
small improvements(IMHO) that I made while working with ARM MMU code.
Patch 27/28, OTOH, brings a bit of a change to how MMU code allocates
PTEs, postponing that until the users of DMA API actually request
that.
Feedback is welcome!
Changes since [v1]:
- create_sections() reworked to keep all of its arguments
32-bits
- Fixed compliation error in 9/28
- Small style fix for 26/28
- Collected Reviewed-by's from Lucas
[v1] http://lists.infradead.org/pipermail/barebox/2018-May/032816.html
Andrey Smirnov (28):
ARM: mmu: Remove unused ARM_VECTORS_SIZE
ARM: mmu: Make use of IS_ALIGNED in arm_mmu_remap_sdram()
ARM: mmu: Use ALIGN and ALIGN_DOWN in map_cachable()
ARM: mmu: Introduce set_ttbr()
ARM: mmu: Introduce set_domain()
ARM: mmu: Share code for create_sections()
ARM: mmu: Separate index and address in create_sections()
sizes.h: Sync with Linux 4.16
ARM: mmu: Specify size in bytes in create_sections()
ARM: mmu: Share code for initial flat mapping creation
ARM: mmu: Share PMD_SECT_DEF_CACHED
ARM: mmu: Drop needless shifting in map_io_sections()
ARM: mmu: Replace hardcoded shifts with pgd_index() from Linux
ARM: mmu: Trivial simplification in arm_mmu_remap_sdram()
ARM: mmu: Replace various SZ_1M with PGDIR_SIZE
ARM: mmu: Use PAGE_SIZE when specifying size of one page
ARM: mmu: Define and use PTRS_PER_PTE
ARM: mmu: Use PAGE_SIZE instead of magic right shift by 12
ARM: mmu: Use xmemalign in arm_create_pte()
ARM: mmu: Use xmemalign in mmu_init()
ARM: mmu: Share code between dma_alloc_*() functions
ARM: mmu: Pass PTE flags a parameter to arm_create_pte()
ARM: mmu: Make sure that address is 1M aligned in arm_create_pte()
ARM: mmu: Use find_pte() to find PTE in create_vector_table()
ARM: mmu: Use dma_inv_range() in dma_sync_single_for_cpu()
ARM: mmu: Simplify the use of dma_flush_range()
ARM: mmu: Implement on-demand PTE allocation
ARM: mmu: Introduce ARM_TTB_SIZE
arch/arm/boards/phytec-som-imx6/lowlevel.c | 1 +
arch/arm/cpu/mmu-early.c | 31 +-
arch/arm/cpu/mmu.c | 321 ++++++++++-----------
arch/arm/cpu/mmu.h | 53 ++++
arch/arm/include/asm/barebox-arm.h | 8 +-
include/linux/sizes.h | 4 +
6 files changed, 221 insertions(+), 197 deletions(-)
--
2.17.0
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