diff options
| author | Hiroshi Doyu <hdoyu@nvidia.com> | 2014-05-30 14:20:31 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2014-06-03 17:19:56 +0200 |
| commit | e87c35e0708d03681729b08fad3e6d131feb78a5 (patch) | |
| tree | 23bef2d304a0be33d49ea4aa5437d6fe22e74f4f /drivers | |
| parent | 9d8e54187af589d062d0bb2597ec38e2705fffdf (diff) | |
iommu/tegra124: smmu: adjust TLB_FLUSH_ASID bit range
TLB_FLUSH_ASID bit range depends on the number of asids to support
other number than the current 4, especially for a new Tegra124. Based
on Terje's internal patch.
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Cc: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/tegra-smmu.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index 7f13133eab0..f499ca1f849 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -92,11 +92,14 @@ enum { #define SMMU_TLB_FLUSH_VA_MATCH_ALL 0 #define SMMU_TLB_FLUSH_VA_MATCH_SECTION 2 #define SMMU_TLB_FLUSH_VA_MATCH_GROUP 3 -#define SMMU_TLB_FLUSH_ASID_SHIFT 29 +#define SMMU_TLB_FLUSH_ASID_SHIFT_BASE 31 #define SMMU_TLB_FLUSH_ASID_MATCH_DISABLE 0 #define SMMU_TLB_FLUSH_ASID_MATCH_ENABLE 1 #define SMMU_TLB_FLUSH_ASID_MATCH_SHIFT 31 +#define SMMU_TLB_FLUSH_ASID_SHIFT(as) \ + (SMMU_TLB_FLUSH_ASID_SHIFT_BASE - __ffs((as)->smmu->num_as)) + #define SMMU_PTC_FLUSH 0x34 #define SMMU_PTC_FLUSH_TYPE_ALL 0 #define SMMU_PTC_FLUSH_TYPE_ADR 1 @@ -562,7 +565,7 @@ static void flush_ptc_and_tlb(struct smmu_device *smmu, val = tlb_flush_va | SMMU_TLB_FLUSH_ASID_MATCH__ENABLE | - (as->asid << SMMU_TLB_FLUSH_ASID_SHIFT); + (as->asid << SMMU_TLB_FLUSH_ASID_SHIFT(as)); smmu_write(smmu, val, SMMU_TLB_FLUSH); FLUSH_SMMU_REGS(smmu); } @@ -729,7 +732,7 @@ static int alloc_pdir(struct smmu_as *as) val = SMMU_TLB_FLUSH_VA_MATCH_ALL | SMMU_TLB_FLUSH_ASID_MATCH__ENABLE | - (as->asid << SMMU_TLB_FLUSH_ASID_SHIFT); + (as->asid << SMMU_TLB_FLUSH_ASID_SHIFT(as)); smmu_write(smmu, val, SMMU_TLB_FLUSH); FLUSH_SMMU_REGS(as->smmu); |