diff options
| author | Stepan Moskovchenko <stepanm@codeaurora.org> | 2010-11-16 05:19:35 +0300 |
|---|---|---|
| committer | Daniel Walker <dwalker@codeaurora.org> | 2010-12-01 03:05:05 +0300 |
| commit | 08bd6839783319085ee0db4c888534e626225774 (patch) | |
| tree | 74f0374f4905a45bad209868fac45adb9ed333a2 /arch/arm/mach-msm | |
| parent | 0ab84745ef65043a616b36b26bec58e1cb62a742 (diff) | |
| download | linux-08bd6839783319085ee0db4c888534e626225774.tar.xz | |
msm: iommu: Definitions for extended memory attributes
Add the register field definitions and memory attribute
definitions that will be needed to support IOMMU
transactions with cache-coherent memory access.
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
Diffstat (limited to 'arch/arm/mach-msm')
| -rw-r--r-- | arch/arm/mach-msm/include/mach/iommu.h | 13 | ||||
| -rw-r--r-- | arch/arm/mach-msm/include/mach/iommu_hw-8xxx.h | 22 |
2 files changed, 34 insertions, 1 deletions
diff --git a/arch/arm/mach-msm/include/mach/iommu.h b/arch/arm/mach-msm/include/mach/iommu.h index 17fc79fc8bc2..296c0f10f230 100644 --- a/arch/arm/mach-msm/include/mach/iommu.h +++ b/arch/arm/mach-msm/include/mach/iommu.h @@ -20,6 +20,19 @@ #include <linux/interrupt.h> +/* Sharability attributes of MSM IOMMU mappings */ +#define MSM_IOMMU_ATTR_NON_SH 0x0 +#define MSM_IOMMU_ATTR_SH 0x4 + +/* Cacheability attributes of MSM IOMMU mappings */ +#define MSM_IOMMU_ATTR_NONCACHED 0x0 +#define MSM_IOMMU_ATTR_CACHED_WB_WA 0x1 +#define MSM_IOMMU_ATTR_CACHED_WB_NWA 0x2 +#define MSM_IOMMU_ATTR_CACHED_WT 0x3 + +/* Mask for the cache policy attribute */ +#define MSM_IOMMU_CP_MASK 0x03 + /* Maximum number of Machine IDs that we are allowing to be mapped to the same * context bank. The number of MIDs mapped to the same CB does not affect * performance, but there is a practical limit on how many distinct MIDs may diff --git a/arch/arm/mach-msm/include/mach/iommu_hw-8xxx.h b/arch/arm/mach-msm/include/mach/iommu_hw-8xxx.h index f9386d3a2f77..c2c3da9444f4 100644 --- a/arch/arm/mach-msm/include/mach/iommu_hw-8xxx.h +++ b/arch/arm/mach-msm/include/mach/iommu_hw-8xxx.h @@ -54,6 +54,7 @@ do { \ #define NUM_FL_PTE 4096 #define NUM_SL_PTE 256 +#define NUM_TEX_CLASS 8 /* First-level page table bits */ #define FL_BASE_MASK 0xFFFFFC00 @@ -63,6 +64,9 @@ do { \ #define FL_AP_WRITE (1 << 10) #define FL_AP_READ (1 << 11) #define FL_SHARED (1 << 16) +#define FL_BUFFERABLE (1 << 2) +#define FL_CACHEABLE (1 << 3) +#define FL_TEX0 (1 << 12) #define FL_OFFSET(va) (((va) & 0xFFF00000) >> 20) /* Second-level page table bits */ @@ -73,8 +77,20 @@ do { \ #define SL_AP0 (1 << 4) #define SL_AP1 (2 << 4) #define SL_SHARED (1 << 10) +#define SL_BUFFERABLE (1 << 2) +#define SL_CACHEABLE (1 << 3) +#define SL_TEX0 (1 << 6) #define SL_OFFSET(va) (((va) & 0xFF000) >> 12) +/* Memory type and cache policy attributes */ +#define MT_SO 0 +#define MT_DEV 1 +#define MT_NORMAL 2 +#define CP_NONCACHED 0 +#define CP_WB_WA 1 +#define CP_WT 2 +#define CP_WB_NWA 3 + /* Global register setters / getters */ #define SET_M2VCBR_N(b, N, v) SET_GLOBAL_REG_N(M2VCBR_N, N, (b), (v)) #define SET_CBACR_N(b, N, v) SET_GLOBAL_REG_N(CBACR_N, N, (b), (v)) @@ -706,7 +722,9 @@ do { \ #define GET_OCPC5(b, c) GET_CONTEXT_FIELD(b, c, NMRR, OCPC5) #define GET_OCPC6(b, c) GET_CONTEXT_FIELD(b, c, NMRR, OCPC6) #define GET_OCPC7(b, c) GET_CONTEXT_FIELD(b, c, NMRR, OCPC7) - +#define NMRR_ICP(nmrr, n) (((nmrr) & (3 << ((n) * 2))) >> ((n) * 2)) +#define NMRR_OCP(nmrr, n) (((nmrr) & (3 << ((n) * 2 + 16))) >> \ + ((n) * 2 + 16)) /* PAR */ #define GET_FAULT(b, c) GET_CONTEXT_FIELD(b, c, PAR, FAULT) @@ -750,6 +768,8 @@ do { \ #define GET_NOS5(b, c) GET_CONTEXT_FIELD(b, c, PRRR, NOS5) #define GET_NOS6(b, c) GET_CONTEXT_FIELD(b, c, PRRR, NOS6) #define GET_NOS7(b, c) GET_CONTEXT_FIELD(b, c, PRRR, NOS7) +#define PRRR_NOS(prrr, n) ((prrr) & (1 << ((n) + 24)) ? 1 : 0) +#define PRRR_MT(prrr, n) ((((prrr) & (3 << ((n) * 2))) >> ((n) * 2))) /* RESUME */ |