Re: [PATCH 02/19] iommu/arm-smmu: Pass io-pgtable config to implementation specific function

2020-08-31 Thread Bjorn Andersson 
On Thu 13 Aug 21:40 CDT 2020, Rob Clark wrote:

> From: Jordan Crouse 
> 
> Construct the io-pgtable config before calling the implementation specific
> init_context function and pass it so the implementation specific function
> can get a chance to change it before the io-pgtable is created.
> 
> Signed-off-by: Jordan Crouse 
> Signed-off-by: Rob Clark 

Reviewed-by: Bjorn Andersson 

Regards,
Bjorn

> ---
>  drivers/iommu/arm/arm-smmu/arm-smmu-impl.c |  3 ++-
>  drivers/iommu/arm/arm-smmu/arm-smmu.c  | 11 ++-
>  drivers/iommu/arm/arm-smmu/arm-smmu.h  |  3 ++-
>  3 files changed, 10 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c 
> b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
> index f4ff124a1967..a9861dcd0884 100644
> --- a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
> @@ -68,7 +68,8 @@ static int cavium_cfg_probe(struct arm_smmu_device *smmu)
>   return 0;
>  }
>  
> -static int cavium_init_context(struct arm_smmu_domain *smmu_domain)
> +static int cavium_init_context(struct arm_smmu_domain *smmu_domain,
> + struct io_pgtable_cfg *pgtbl_cfg)
>  {
>   struct cavium_smmu *cs = container_of(smmu_domain->smmu,
> struct cavium_smmu, smmu);
> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c 
> b/drivers/iommu/arm/arm-smmu/arm-smmu.c
> index 09c42af9f31e..37d8d49299b4 100644
> --- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c
> @@ -795,11 +795,6 @@ static int arm_smmu_init_domain_context(struct 
> iommu_domain *domain,
>   cfg->asid = cfg->cbndx;
>  
>   smmu_domain->smmu = smmu;
> - if (smmu->impl && smmu->impl->init_context) {
> - ret = smmu->impl->init_context(smmu_domain);
> - if (ret)
> - goto out_unlock;
> - }
>  
>   pgtbl_cfg = (struct io_pgtable_cfg) {
>   .pgsize_bitmap  = smmu->pgsize_bitmap,
> @@ -810,6 +805,12 @@ static int arm_smmu_init_domain_context(struct 
> iommu_domain *domain,
>   .iommu_dev  = smmu->dev,
>   };
>  
> + if (smmu->impl && smmu->impl->init_context) {
> + ret = smmu->impl->init_context(smmu_domain, _cfg);
> + if (ret)
> + goto out_clear_smmu;
> + }
> +
>   if (smmu_domain->non_strict)
>   pgtbl_cfg.quirks |= IO_PGTABLE_QUIRK_NON_STRICT;
>  
> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.h 
> b/drivers/iommu/arm/arm-smmu/arm-smmu.h
> index d890a4a968e8..83294516ac08 100644
> --- a/drivers/iommu/arm/arm-smmu/arm-smmu.h
> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.h
> @@ -386,7 +386,8 @@ struct arm_smmu_impl {
>   u64 val);
>   int (*cfg_probe)(struct arm_smmu_device *smmu);
>   int (*reset)(struct arm_smmu_device *smmu);
> - int (*init_context)(struct arm_smmu_domain *smmu_domain);
> + int (*init_context)(struct arm_smmu_domain *smmu_domain,
> + struct io_pgtable_cfg *cfg);
>   void (*tlb_sync)(struct arm_smmu_device *smmu, int page, int sync,
>int status);
>   int (*def_domain_type)(struct device *dev);
> -- 
> 2.26.2
>

[PATCH 02/19] iommu/arm-smmu: Pass io-pgtable config to implementation specific function

2020-08-13 Thread Rob Clark 
From: Jordan Crouse 

Construct the io-pgtable config before calling the implementation specific
init_context function and pass it so the implementation specific function
can get a chance to change it before the io-pgtable is created.

Signed-off-by: Jordan Crouse 
Signed-off-by: Rob Clark 
---
 drivers/iommu/arm/arm-smmu/arm-smmu-impl.c |  3 ++-
 drivers/iommu/arm/arm-smmu/arm-smmu.c  | 11 ++-
 drivers/iommu/arm/arm-smmu/arm-smmu.h  |  3 ++-
 3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c 
b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
index f4ff124a1967..a9861dcd0884 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c
@@ -68,7 +68,8 @@ static int cavium_cfg_probe(struct arm_smmu_device *smmu)
return 0;
 }
 
-static int cavium_init_context(struct arm_smmu_domain *smmu_domain)
+static int cavium_init_context(struct arm_smmu_domain *smmu_domain,
+   struct io_pgtable_cfg *pgtbl_cfg)
 {
struct cavium_smmu *cs = container_of(smmu_domain->smmu,
  struct cavium_smmu, smmu);
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c 
b/drivers/iommu/arm/arm-smmu/arm-smmu.c
index 09c42af9f31e..37d8d49299b4 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c
@@ -795,11 +795,6 @@ static int arm_smmu_init_domain_context(struct 
iommu_domain *domain,
cfg->asid = cfg->cbndx;
 
smmu_domain->smmu = smmu;
-   if (smmu->impl && smmu->impl->init_context) {
-   ret = smmu->impl->init_context(smmu_domain);
-   if (ret)
-   goto out_unlock;
-   }
 
pgtbl_cfg = (struct io_pgtable_cfg) {
.pgsize_bitmap  = smmu->pgsize_bitmap,
@@ -810,6 +805,12 @@ static int arm_smmu_init_domain_context(struct 
iommu_domain *domain,
.iommu_dev  = smmu->dev,
};
 
+   if (smmu->impl && smmu->impl->init_context) {
+   ret = smmu->impl->init_context(smmu_domain, _cfg);
+   if (ret)
+   goto out_clear_smmu;
+   }
+
if (smmu_domain->non_strict)
pgtbl_cfg.quirks |= IO_PGTABLE_QUIRK_NON_STRICT;
 
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.h 
b/drivers/iommu/arm/arm-smmu/arm-smmu.h
index d890a4a968e8..83294516ac08 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.h
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.h
@@ -386,7 +386,8 @@ struct arm_smmu_impl {
u64 val);
int (*cfg_probe)(struct arm_smmu_device *smmu);
int (*reset)(struct arm_smmu_device *smmu);
-   int (*init_context)(struct arm_smmu_domain *smmu_domain);
+   int (*init_context)(struct arm_smmu_domain *smmu_domain,
+   struct io_pgtable_cfg *cfg);
void (*tlb_sync)(struct arm_smmu_device *smmu, int page, int sync,
 int status);
int (*def_domain_type)(struct device *dev);
-- 
2.26.2