• FUJITA Tomonori's avatar
    dma-mapping: add asm-generic/dma-mapping-common.h · c147d8ea
    FUJITA Tomonori authored
    We unified x86 and IA64's handling of multiple dma mapping operations
    (struct dma_map_ops in linux/dma-mapping.h) so we can remove duplication
    in their arch/include/asm/dma-mapping.h.
    
    This patchset adds include/asm-generic/dma-mapping-common.h that provides
    some generic dma mapping function definitions for the users of struct
    dma_map_ops.  This enables us to remove about 100 lines.  This also
    enables us to easily add CONFIG_DMA_API_DEBUG support, which only x86
    supports for now.  The 4th patch adds CONFIG_DMA_API_DEBUG support to IA64
    by adding only 8 lines.
    
    This patch:
    
    This header file provides some mapping function definitions that the users
    of struct dma_map_ops can use.
    Signed-off-by: default avatarFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
    Acked-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: "Luck, Tony" <tony.luck@intel.com>
    Cc: Arnd Bergmann <arnd@arndb.de>
    Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
    Cc: "David S. Miller" <davem@davemloft.net>
    Cc: Catalin Marinas <catalin.marinas@arm.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    c147d8ea
dma-mapping-common.h 5.51 KB