diff options
| author |   José Pekkarinen <jose.pekkarinen@nokia.com> | 2015-10-19 08:35:30 +0300 |
|---|---|---|
| committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2015-10-19 08:35:30 +0300 |
| commit | ec0a2ed6d8a5e555edef907895c041e285fdb495 (patch) | |
| tree | a4c8d982f8ac820b1b60818df22ad3ccac2036d5 /kernel/drivers/iommu/tegra-smmu.c | |
| parent | 342fa5dfa053559f47caad657132522496dcf1b3 (diff) | |
These changes are a raw update to a vanilla kernel 4.1.10, with the
recently announced rt patch patch-4.1.10-rt10.patch. No further changes
needed.
Change-Id: I9a0cf084498133b10771e744b6da4b29dff706ba
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/iommu/tegra-smmu.c')
| -rw-r--r-- | kernel/drivers/iommu/tegra-smmu.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/kernel/drivers/iommu/tegra-smmu.c b/kernel/drivers/iommu/tegra-smmu.c index c845d99ec..e0ff5f4d7 100644 --- a/kernel/drivers/iommu/tegra-smmu.c +++ b/kernel/drivers/iommu/tegra-smmu.c @@ -26,6 +26,7 @@ struct tegra_smmu { const struct tegra_smmu_soc *soc; unsigned long pfn_mask; + unsigned long tlb_mask; unsigned long *asids; struct mutex lock; @@ -65,7 +66,8 @@ static inline u32 smmu_readl(struct tegra_smmu *smmu, unsigned long offset) #define SMMU_TLB_CONFIG 0x14 #define SMMU_TLB_CONFIG_HIT_UNDER_MISS (1 << 29) #define SMMU_TLB_CONFIG_ROUND_ROBIN_ARBITRATION (1 << 28) -#define SMMU_TLB_CONFIG_ACTIVE_LINES(x) ((x) & 0x3f) +#define SMMU_TLB_CONFIG_ACTIVE_LINES(smmu) \ + ((smmu)->soc->num_tlb_lines & (smmu)->tlb_mask) #define SMMU_PTC_CONFIG 0x18 #define SMMU_PTC_CONFIG_ENABLE (1 << 29) @@ -716,6 +718,9 @@ struct tegra_smmu *tegra_smmu_probe(struct device *dev, smmu->pfn_mask = BIT_MASK(mc->soc->num_address_bits - PAGE_SHIFT) - 1; dev_dbg(dev, "address bits: %u, PFN mask: %#lx\n", mc->soc->num_address_bits, smmu->pfn_mask); + smmu->tlb_mask = (smmu->soc->num_tlb_lines << 1) - 1; + dev_dbg(dev, "TLB lines: %u, mask: %#lx\n", smmu->soc->num_tlb_lines, + smmu->tlb_mask); value = SMMU_PTC_CONFIG_ENABLE | SMMU_PTC_CONFIG_INDEX_MAP(0x3f); @@ -725,7 +730,7 @@ struct tegra_smmu *tegra_smmu_probe(struct device *dev, smmu_writel(smmu, value, SMMU_PTC_CONFIG); value = SMMU_TLB_CONFIG_HIT_UNDER_MISS | - SMMU_TLB_CONFIG_ACTIVE_LINES(0x20); + SMMU_TLB_CONFIG_ACTIVE_LINES(smmu); if (soc->supports_round_robin_arbitration) value |= SMMU_TLB_CONFIG_ROUND_ROBIN_ARBITRATION; |