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-rw-r--r--arch/arm/mach-msm/include/mach/iommu.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/arm/mach-msm/include/mach/iommu.h b/arch/arm/mach-msm/include/mach/iommu.h
index 218ef5732a24..296c0f10f230 100644
--- a/arch/arm/mach-msm/include/mach/iommu.h
+++ b/arch/arm/mach-msm/include/mach/iommu.h
@@ -20,13 +20,26 @@
20 20
21#include <linux/interrupt.h> 21#include <linux/interrupt.h>
22 22
23/* Sharability attributes of MSM IOMMU mappings */
24#define MSM_IOMMU_ATTR_NON_SH 0x0
25#define MSM_IOMMU_ATTR_SH 0x4
26
27/* Cacheability attributes of MSM IOMMU mappings */
28#define MSM_IOMMU_ATTR_NONCACHED 0x0
29#define MSM_IOMMU_ATTR_CACHED_WB_WA 0x1
30#define MSM_IOMMU_ATTR_CACHED_WB_NWA 0x2
31#define MSM_IOMMU_ATTR_CACHED_WT 0x3
32
33/* Mask for the cache policy attribute */
34#define MSM_IOMMU_CP_MASK 0x03
35
23/* Maximum number of Machine IDs that we are allowing to be mapped to the same 36/* Maximum number of Machine IDs that we are allowing to be mapped to the same
24 * context bank. The number of MIDs mapped to the same CB does not affect 37 * context bank. The number of MIDs mapped to the same CB does not affect
25 * performance, but there is a practical limit on how many distinct MIDs may 38 * performance, but there is a practical limit on how many distinct MIDs may
26 * be present. These mappings are typically determined at design time and are 39 * be present. These mappings are typically determined at design time and are
27 * not expected to change at run time. 40 * not expected to change at run time.
28 */ 41 */
29#define MAX_NUM_MIDS 16 42#define MAX_NUM_MIDS 32
30 43
31/** 44/**
32 * struct msm_iommu_dev - a single IOMMU hardware instance 45 * struct msm_iommu_dev - a single IOMMU hardware instance