From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH v2 00/12] ARM/ARM64 MMU code consolidation, zeroing of DMA coherent memory
Date: Thu, 17 Jan 2019 16:38:15 -0800 [thread overview]
Message-ID: <20190118003827.17517-1-andrew.smirnov@gmail.com> (raw)
Everyone:
This series is a result of my attempt at changing the behaviour of
dma_alloc_coherent() to guarantee that memory it returns is zeroed
out. Mostly to avoid having to do that explicitly in driver code, but
also to match behaviour that that function has in Linux. While working
on that I noticed that there was a fair bit of MMU/DMA related code
between ARM/ARM64 that can be shared, so I created a number of patches
to do just that.
Feedback is welcome!
Thanks,
Andrey Smirnov
Changes since [v1]
- Collected Reviewed-by from Sam Ravnborg
- Fixed various spelling errors
[v1] http://lists.infradead.org/pipermail/barebox/2019-January/036605.html
Andrey Smirnov (12):
ARM: mmu: Drop custom virt_to_phys/phys_to_virt
ARM: mmu: Simplify the use of dma_inv_range()
ARM: mmu: Share code for dma_(un)map_single()
ARM64: mmu: Use arch_remap_range() internally
ARM64: mmu: Merge create_sections() and map_region() together
ARM: mmu: Share code for dma_free_coherent()
ARM64: mmu: Invalidate memory before remapping as DMA coherent
ARM: mmu: Share code for dma_alloc_coherent()
ARM: mmu: Share code for dma_sync_single_for_cpu()
ARM: mmu: Share sanity checking code in mmu_init()
ARM: mmu: Share code for arm_mmu_not_initialized_error()
ARM: mmu: Make sure DMA coherent memory is zeroed out
arch/arm/cpu/Makefile | 2 +-
arch/arm/cpu/mmu-common.c | 82 +++++++++++++++++++++++++++++++++
arch/arm/cpu/mmu-common.h | 20 ++++++++
arch/arm/cpu/mmu.c | 96 +++------------------------------------
arch/arm/cpu/mmu.h | 2 +
arch/arm/cpu/mmu_64.c | 96 ++++++---------------------------------
arch/arm/cpu/mmu_64.h | 2 +
arch/arm/include/asm/io.h | 5 --
8 files changed, 128 insertions(+), 177 deletions(-)
create mode 100644 arch/arm/cpu/mmu-common.c
create mode 100644 arch/arm/cpu/mmu-common.h
--
2.20.1
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next reply other threads:[~2019-01-18 0:38 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-18 0:38 Andrey Smirnov [this message]
2019-01-18 0:38 ` [PATCH v2 01/12] ARM: mmu: Drop custom virt_to_phys/phys_to_virt Andrey Smirnov
2019-01-18 0:38 ` [PATCH v2 02/12] ARM: mmu: Simplify the use of dma_inv_range() Andrey Smirnov
2019-01-18 0:38 ` [PATCH v2 03/12] ARM: mmu: Share code for dma_(un)map_single() Andrey Smirnov
2019-01-18 0:38 ` [PATCH v2 04/12] ARM64: mmu: Use arch_remap_range() internally Andrey Smirnov
2019-01-18 0:38 ` [PATCH v2 05/12] ARM64: mmu: Merge create_sections() and map_region() together Andrey Smirnov
2019-01-18 0:38 ` [PATCH v2 06/12] ARM: mmu: Share code for dma_free_coherent() Andrey Smirnov
2019-01-18 0:38 ` [PATCH v2 07/12] ARM64: mmu: Invalidate memory before remapping as DMA coherent Andrey Smirnov
2019-01-18 0:38 ` [PATCH v2 08/12] ARM: mmu: Share code for dma_alloc_coherent() Andrey Smirnov
2019-01-18 0:38 ` [PATCH v2 09/12] ARM: mmu: Share code for dma_sync_single_for_cpu() Andrey Smirnov
2019-01-18 0:38 ` [PATCH v2 10/12] ARM: mmu: Share sanity checking code in mmu_init() Andrey Smirnov
2019-01-18 0:38 ` [PATCH v2 11/12] ARM: mmu: Share code for arm_mmu_not_initialized_error() Andrey Smirnov
2019-01-18 0:38 ` [PATCH v2 12/12] ARM: mmu: Make sure DMA coherent memory is zeroed out Andrey Smirnov
2019-01-21 7:34 ` [PATCH v2 00/12] ARM/ARM64 MMU code consolidation, zeroing of DMA coherent memory Sascha Hauer
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