Messages in this thread | | | From | Hideki EIRAKU <> | Subject | [PATCH v3 0/4] Use dma_mmap_coherent to support IOMMU mapper | Date | Mon, 6 Aug 2012 18:55:20 +0900 |
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There is a dma_mmap_coherent() API in some architectures. This API provides a mmap function for memory allocated by dma_alloc_coherent(). Some drivers mmap a dma_addr_t returned by dma_alloc_coherent() as a physical address. But such drivers do not work correctly when IOMMU mapper is used.
v3: - Remove an unnecessary line which sets page protection bits. v2: - Rebase on fbdev-next branch of git://github.com/schandinat/linux-2.6.git. - Initialize .fb_mmap in both sh_mobile_lcdc_overlay_ops and sh_mobile_lcdc_ops. - Add Laurent's clean up patch.
Hideki EIRAKU (3): ARM: dma-mapping: define ARCH_HAS_DMA_MMAP_COHERENT media: videobuf2-dma-contig: use dma_mmap_coherent if available fbdev: sh_mobile_lcdc: use dma_mmap_coherent if available
Laurent Pinchart (1): ALSA: pcm - Don't define ARCH_HAS_DMA_MMAP_COHERENT privately for ARM
arch/arm/include/asm/dma-mapping.h | 1 + drivers/media/video/videobuf2-dma-contig.c | 17 +++++++++++++++++ drivers/video/sh_mobile_lcdcfb.c | 28 ++++++++++++++++++++++++++++ sound/core/pcm_native.c | 7 ------- 4 files changed, 46 insertions(+), 7 deletions(-)
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