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authorOhad Ben-Cohen <ohad@wizery.com>2011-11-10 11:32:28 +0200
committerJoerg Roedel <joerg.roedel@amd.com>2011-11-10 11:40:37 +0100
commit83427275546a6e36076d4f1a0545335b1bb2afc2 (patch)
tree8f65c27cb919b5fa38b6731b340df55bcd1cb6bf /drivers/iommu/msm_iommu.c
parent66bc8cf3b1f70227a7847c88c24a36b4886bb3c3 (diff)
downloadop-kernel-dev-83427275546a6e36076d4f1a0545335b1bb2afc2.zip
op-kernel-dev-83427275546a6e36076d4f1a0545335b1bb2afc2.tar.gz
iommu/msm: announce supported page sizes
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@wizery.com> Acked-by: David Brown <davidb@codeaurora.org> Cc: Stepan Moskovchenko <stepanm@codeaurora.org> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/iommu/msm_iommu.c')
-rw-r--r--drivers/iommu/msm_iommu.c6
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)
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