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Commit 83427275 authored by Ohad Ben-Cohen's avatar Ohad Ben-Cohen Committed by Joerg Roedel
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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: default avatarOhad Ben-Cohen <ohad@wizery.com>
Acked-by: default avatarDavid Brown <davidb@codeaurora.org>
Cc: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent 66bc8cf3

drivers/iommu/msm_iommu.c

+5 −1
Original line number Diff line number Diff line
@@ -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)