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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH 00/12] ARM/ARM64 MMU code consolidation, zeroing of DMA coherent memory
Date: Wed, 16 Jan 2019 22:38:28 -0800	[thread overview]
Message-ID: <20190117063840.13674-1-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

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() internaly
  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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             reply	other threads:[~2019-01-17  6:38 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-17  6:38 Andrey Smirnov [this message]
2019-01-17  6:38 ` [PATCH 01/12] ARM: mmu: Drop custom virt_to_phys/phys_to_virt Andrey Smirnov
2019-01-17  6:38 ` [PATCH 02/12] ARM: mmu: Simplify the use of dma_inv_range() Andrey Smirnov
2019-01-17  6:38 ` [PATCH 03/12] ARM: mmu: Share code for dma_(un)map_single() Andrey Smirnov
2019-01-17  6:38 ` [PATCH 04/12] ARM64: mmu: Use arch_remap_range() internaly Andrey Smirnov
2019-01-17  6:38 ` [PATCH 05/12] ARM64: mmu: Merge create_sections() and map_region() together Andrey Smirnov
2019-01-17  6:38 ` [PATCH 06/12] ARM: mmu: Share code for dma_free_coherent() Andrey Smirnov
2019-01-17  6:38 ` [PATCH 07/12] ARM64: mmu: Invalidate memory before remapping as DMA coherent Andrey Smirnov
2019-01-17  6:38 ` [PATCH 08/12] ARM: mmu: Share code for dma_alloc_coherent() Andrey Smirnov
2019-01-17 21:23   ` Sam Ravnborg
2019-01-17 21:54     ` Andrey Smirnov
2019-01-17 22:06       ` Sam Ravnborg
2019-01-17  6:38 ` [PATCH 09/12] ARM: mmu: Share code for dma_sync_single_for_cpu() Andrey Smirnov
2019-01-17 21:28   ` Sam Ravnborg
2019-01-17 21:50     ` Andrey Smirnov
2019-01-17 22:04       ` Sam Ravnborg
2019-01-17  6:38 ` [PATCH 10/12] ARM: mmu: Share sanity checking code in mmu_init() Andrey Smirnov
2019-01-17  6:38 ` [PATCH 11/12] ARM: mmu: Share code for arm_mmu_not_initialized_error() Andrey Smirnov
2019-01-17  6:38 ` [PATCH 12/12] ARM: mmu: Make sure DMA coherent memory is zeroed out Andrey Smirnov
2019-01-17 21:36   ` Sam Ravnborg
2019-01-17 22:00     ` Andrey Smirnov
2019-01-17 22:11       ` Sam Ravnborg
2019-01-17 21:40 ` [PATCH 00/12] ARM/ARM64 MMU code consolidation, zeroing of DMA coherent memory Sam Ravnborg
2019-01-17 22:01   ` Andrey Smirnov
2019-01-17 22:06   ` Sam Ravnborg

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