hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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>
This commit is contained in:
Ohad Ben-Cohen 2011-11-10 11:32:28 +02:00 committed by Joerg Roedel
parent 66bc8cf3b1
commit 8342727554
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/iommu/msm_iommu.c
View File

@ -42,6 +42,9 @@ __asm__ __volatile__ ( \
#define RCP15_PRRR(reg) MRC(reg, p15, 0, c10, c2, 0) #define RCP15_PRRR(reg) MRC(reg, p15, 0, c10, c2, 0)
#define RCP15_NMRR(reg) MRC(reg, p15, 0, c10, c2, 1) #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]; static int msm_iommu_tex_class[4];
DEFINE_SPINLOCK(msm_iommu_lock); DEFINE_SPINLOCK(msm_iommu_lock);
@ -679,7 +682,8 @@ static struct iommu_ops msm_iommu_ops = {
.map = msm_iommu_map, .map = msm_iommu_map,
.unmap = msm_iommu_unmap, .unmap = msm_iommu_unmap,
.iova_to_phys = msm_iommu_iova_to_phys, .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) static int __init get_tex_class(int icp, int ocp, int mt, int nos)