Let the IOMMU core know we support 4KiB, 64KiB, 1MiB and 16MiB page sizes.
This way the IOMMU core can split any arbitrary-sized physically
contiguous regions (that it needs to map) as needed.
Signed-off-by: Ohad Ben-Cohen <ohad@xxxxxxxxxx>
Acked-by: David Brown <davidb@xxxxxxxxxxxxxx>
Cc: Stepan Moskovchenko <stepanm@xxxxxxxxxxxxxx>
---
drivers/iommu/msm_iommu.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index 13718d9..08a90b8 100644
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -42,6 +42,9 @@ __asm__ __volatile__ ( \
#define RCP15_PRRR(reg) MRC(reg, p15, 0, c10, c2, 0)
#define RCP15_NMRR(reg) MRC(reg, p15, 0, c10, c2, 1)
+/* bitmap of the page sizes currently supported */
+#define MSM_IOMMU_PGSIZES (SZ_4K | SZ_64K | SZ_1M | SZ_16M)
+
static int msm_iommu_tex_class[4];
DEFINE_SPINLOCK(msm_iommu_lock);
@@ -679,7 +682,8 @@ static struct iommu_ops msm_iommu_ops = {
.map = msm_iommu_map,
.unmap = msm_iommu_unmap,
.iova_to_phys = msm_iommu_iova_to_phys,
- .domain_has_cap = msm_iommu_domain_has_cap
+ .domain_has_cap = msm_iommu_domain_has_cap,
+ .pgsize_bitmap = MSM_IOMMU_PGSIZES,
};
static int __init get_tex_class(int icp, int ocp, int mt, int nos)
--
1.7.4.1
--
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