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iommu/arm-smmu: Implement {enable,disable}_config_clocks

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Some of our users need to be able to call
iommu_{enable,disable}_config_clocks on domains for SMMUs that we
control.  Implement them.

CRs-Fixed: 997751
Change-Id: Idc3692679409093faf8f458d53326e669d7f6479
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
This commit is contained in:
Mitchel Humpherys 2015-12-14 16:12:00 -08:00 • committed by Jeevan Shriram
parent fc72f22379
commit def4ba9fee
1 changed files with 16 additions and 0 deletions
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16
drivers/iommu/arm-smmu.c
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@ -1008,6 +1008,20 @@ static void arm_smmu_tlbi_domain(struct iommu_domain *domain)
arm_smmu_tlb_inv_context(to_smmu_domain(domain)); arm_smmu_tlb_inv_context(to_smmu_domain(domain));
} }
static int arm_smmu_enable_config_clocks(struct iommu_domain *domain)
{
struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
return arm_smmu_enable_clocks(smmu_domain->smmu);
}
static void arm_smmu_disable_config_clocks(struct iommu_domain *domain)
{
struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
arm_smmu_disable_clocks(smmu_domain->smmu);
}
struct arm_smmu_secure_pool_chunk { struct arm_smmu_secure_pool_chunk {
void *addr; void *addr;
size_t size; size_t size;
@ -3109,6 +3123,8 @@ static struct iommu_ops arm_smmu_ops = {
.reg_read = arm_smmu_reg_read, .reg_read = arm_smmu_reg_read,
.reg_write = arm_smmu_reg_write, .reg_write = arm_smmu_reg_write,
.tlbi_domain = arm_smmu_tlbi_domain, .tlbi_domain = arm_smmu_tlbi_domain,
.enable_config_clocks = arm_smmu_enable_config_clocks,
.disable_config_clocks = arm_smmu_disable_config_clocks,
}; };
static void arm_smmu_device_reset(struct arm_smmu_device *smmu) static void arm_smmu_device_reset(struct arm_smmu_device *smmu)