From: Ohad Ben-Cohen Date: Thu, 10 Nov 2011 09:32:28 +0000 (+0200) Subject: iommu/msm: announce supported page sizes X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=83427275546a6e36076d4f1a0545335b1bb2afc2;p=mv-sheeva.git 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 Acked-by: David Brown Cc: Stepan Moskovchenko Signed-off-by: Joerg Roedel --- diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c index 13718d958da..08a90b88e40 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)