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author | Olof Johansson <olof@lixom.net> | 2012-12-01 09:40:59 +0400 |
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committer | Olof Johansson <olof@lixom.net> | 2012-12-01 09:40:59 +0400 |
commit | 8556650dd3370a927217f16444aac5cc0c71e61b (patch) | |
tree | a392b07b5d72a6522d3d5f1561b8fe2b64ca8021 /drivers/iommu/omap-iovmm.c | |
parent | fbac7d7d6c1f873c89d88ca6ab8a2891ac837796 (diff) | |
parent | 2ab7c84815cffd5fe4946a472fc67fefa8ac3c29 (diff) | |
download | linux-8556650dd3370a927217f16444aac5cc0c71e61b.tar.xz |
Merge tag 'omap-for-v3.8/cleanup-headers-iommu-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/headers
From Tony Lindgren:
Move most of remaining omap iommu code to drivers/iommu.
This is needed for the multiplatform kernels as the plat
and mach headers cannot be included.
These changes were agreed to be merged via the arm-soc
tree by Joerg and Ohad as these will cause some merge
conflicts with the other related clean-up branches.
So omap-for-v3.8/cleanup-headers-iommu should be added
as one of the depends branches for arm-soc.
* tag 'omap-for-v3.8/cleanup-headers-iommu-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Move iommu/iovmm headers to platform_data
ARM: OMAP2+: Make some definitions local
ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.c
ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h
ARM: OMAP2+: Move iopgtable header to drivers/iommu/
ARM: OMAP: Merge iommu2.h into iommu.h
Conflicts due to surrounding changes in:
arch/arm/mach-omap2/omap_hwmod_44xx_data.c
drivers/media/platform/omap3isp/ispvideo.c
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/iommu/omap-iovmm.c')
-rw-r--r-- | drivers/iommu/omap-iovmm.c | 50 |
1 files changed, 47 insertions, 3 deletions
diff --git a/drivers/iommu/omap-iovmm.c b/drivers/iommu/omap-iovmm.c index 2e10c3e0a7ae..46d875690739 100644 --- a/drivers/iommu/omap-iovmm.c +++ b/drivers/iommu/omap-iovmm.c @@ -17,14 +17,58 @@ #include <linux/device.h> #include <linux/scatterlist.h> #include <linux/iommu.h> +#include <linux/omap-iommu.h> +#include <linux/platform_data/iommu-omap.h> #include <asm/cacheflush.h> #include <asm/mach/map.h> -#include <plat/iommu.h> -#include <plat/iovmm.h> +#include "omap-iopgtable.h" +#include "omap-iommu.h" -#include <plat/iopgtable.h> +/* + * IOVMF_FLAGS: attribute for iommu virtual memory area(iovma) + * + * lower 16 bit is used for h/w and upper 16 bit is for s/w. + */ +#define IOVMF_SW_SHIFT 16 + +/* + * iovma: h/w flags derived from cam and ram attribute + */ +#define IOVMF_CAM_MASK (~((1 << 10) - 1)) +#define IOVMF_RAM_MASK (~IOVMF_CAM_MASK) + +#define IOVMF_PGSZ_MASK (3 << 0) +#define IOVMF_PGSZ_1M MMU_CAM_PGSZ_1M +#define IOVMF_PGSZ_64K MMU_CAM_PGSZ_64K +#define IOVMF_PGSZ_4K MMU_CAM_PGSZ_4K +#define IOVMF_PGSZ_16M MMU_CAM_PGSZ_16M + +#define IOVMF_ENDIAN_MASK (1 << 9) +#define IOVMF_ENDIAN_BIG MMU_RAM_ENDIAN_BIG + +#define IOVMF_ELSZ_MASK (3 << 7) +#define IOVMF_ELSZ_16 MMU_RAM_ELSZ_16 +#define IOVMF_ELSZ_32 MMU_RAM_ELSZ_32 +#define IOVMF_ELSZ_NONE MMU_RAM_ELSZ_NONE + +#define IOVMF_MIXED_MASK (1 << 6) +#define IOVMF_MIXED MMU_RAM_MIXED + +/* + * iovma: s/w flags, used for mapping and umapping internally. + */ +#define IOVMF_MMIO (1 << IOVMF_SW_SHIFT) +#define IOVMF_ALLOC (2 << IOVMF_SW_SHIFT) +#define IOVMF_ALLOC_MASK (3 << IOVMF_SW_SHIFT) + +/* "superpages" is supported just with physically linear pages */ +#define IOVMF_DISCONT (1 << (2 + IOVMF_SW_SHIFT)) +#define IOVMF_LINEAR (2 << (2 + IOVMF_SW_SHIFT)) +#define IOVMF_LINEAR_MASK (3 << (2 + IOVMF_SW_SHIFT)) + +#define IOVMF_DA_FIXED (1 << (4 + IOVMF_SW_SHIFT)) static struct kmem_cache *iovm_area_cachep; |