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path: root/drivers/iommu/arm-smmu-v3.c
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Diffstat (limited to 'drivers/iommu/arm-smmu-v3.c')
-rw-r--r--drivers/iommu/arm-smmu-v3.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 4ff73ff64e49..ebab33e77d67 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -590,6 +590,7 @@ struct arm_smmu_device {
unsigned long ias; /* IPA */
unsigned long oas; /* PA */
+ unsigned long pgsize_bitmap;
#define ARM_SMMU_MAX_ASIDS (1 << 16)
unsigned int asid_bits;
@@ -1516,8 +1517,6 @@ static int arm_smmu_domain_finalise_s2(struct arm_smmu_domain *smmu_domain,
return 0;
}
-static struct iommu_ops arm_smmu_ops;
-
static int arm_smmu_domain_finalise(struct iommu_domain *domain)
{
int ret;
@@ -1555,7 +1554,7 @@ static int arm_smmu_domain_finalise(struct iommu_domain *domain)
}
pgtbl_cfg = (struct io_pgtable_cfg) {
- .pgsize_bitmap = arm_smmu_ops.pgsize_bitmap,
+ .pgsize_bitmap = smmu->pgsize_bitmap,
.ias = ias,
.oas = oas,
.tlb = &arm_smmu_gather_ops,
@@ -1566,7 +1565,7 @@ static int arm_smmu_domain_finalise(struct iommu_domain *domain)
if (!pgtbl_ops)
return -ENOMEM;
- arm_smmu_ops.pgsize_bitmap = pgtbl_cfg.pgsize_bitmap;
+ domain->pgsize_bitmap = pgtbl_cfg.pgsize_bitmap;
smmu_domain->pgtbl_ops = pgtbl_ops;
ret = finalise_stage_fn(smmu_domain, &pgtbl_cfg);
@@ -2410,7 +2409,6 @@ static int arm_smmu_device_probe(struct arm_smmu_device *smmu)
{
u32 reg;
bool coherent;
- unsigned long pgsize_bitmap = 0;
/* IDR0 */
reg = readl_relaxed(smmu->base + ARM_SMMU_IDR0);
@@ -2541,13 +2539,16 @@ static int arm_smmu_device_probe(struct arm_smmu_device *smmu)
/* Page sizes */
if (reg & IDR5_GRAN64K)
- pgsize_bitmap |= SZ_64K | SZ_512M;
+ smmu->pgsize_bitmap |= SZ_64K | SZ_512M;
if (reg & IDR5_GRAN16K)
- pgsize_bitmap |= SZ_16K | SZ_32M;
+ smmu->pgsize_bitmap |= SZ_16K | SZ_32M;
if (reg & IDR5_GRAN4K)
- pgsize_bitmap |= SZ_4K | SZ_2M | SZ_1G;
+ smmu->pgsize_bitmap |= SZ_4K | SZ_2M | SZ_1G;
- arm_smmu_ops.pgsize_bitmap &= pgsize_bitmap;
+ if (arm_smmu_ops.pgsize_bitmap == -1UL)
+ arm_smmu_ops.pgsize_bitmap = smmu->pgsize_bitmap;
+ else
+ arm_smmu_ops.pgsize_bitmap |= smmu->pgsize_bitmap;
/* Output address size */
switch (reg & IDR5_OAS_MASK << IDR5_OAS_SHIFT) {