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.
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 | 18 ++++++++++++++++++ drivers/video/sh_mobile_lcdcfb.c | 28 ++++++++++++++++++++++++++++ sound/core/pcm_native.c | 7 ------- 4 files changed, 47 insertions(+), 7 deletions(-)