diff options
| author | Fenghua Yu <fenghua.yu@intel.com> | 2020-09-15 19:30:05 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-09-17 20:21:16 +0300 |
| commit | c7b6bac9c72c5fcbd6e9e12545bd3022c7f21860 (patch) | |
| tree | dd187df25c58ff75768a40b51b42422d949b233a /drivers/iommu/intel/svm.c | |
| parent | 856deb866d16e29bd65952e0289066f6078af773 (diff) | |
| download | linux-c7b6bac9c72c5fcbd6e9e12545bd3022c7f21860.tar.xz | |
drm, iommu: Change type of pasid to u32
PASID is defined as a few different types in iommu including "int",
"u32", and "unsigned int". To be consistent and to match with uapi
definitions, define PASID and its variations (e.g. max PASID) as "u32".
"u32" is also shorter and a little more explicit than "unsigned int".
No PASID type change in uapi although it defines PASID as __u64 in
some places.
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
Link: https://lkml.kernel.org/r/1600187413-163670-2-git-send-email-fenghua.yu@intel.com
Diffstat (limited to 'drivers/iommu/intel/svm.c')
| -rw-r--r-- | drivers/iommu/intel/svm.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c index 95c3164a2302..e78a74a9c1cf 100644 --- a/drivers/iommu/intel/svm.c +++ b/drivers/iommu/intel/svm.c @@ -23,7 +23,7 @@ #include "pasid.h" static irqreturn_t prq_event_thread(int irq, void *d); -static void intel_svm_drain_prq(struct device *dev, int pasid); +static void intel_svm_drain_prq(struct device *dev, u32 pasid); #define PRQ_ORDER 0 @@ -399,7 +399,7 @@ int intel_svm_bind_gpasid(struct iommu_domain *domain, struct device *dev, return ret; } -int intel_svm_unbind_gpasid(struct device *dev, int pasid) +int intel_svm_unbind_gpasid(struct device *dev, u32 pasid) { struct intel_iommu *iommu = device_to_iommu(dev, NULL, NULL); struct intel_svm_dev *sdev; @@ -620,7 +620,7 @@ out: } /* Caller must hold pasid_mutex */ -static int intel_svm_unbind_mm(struct device *dev, int pasid) +static int intel_svm_unbind_mm(struct device *dev, u32 pasid) { struct intel_svm_dev *sdev; struct intel_iommu *iommu; @@ -739,7 +739,7 @@ static bool is_canonical_address(u64 addr) * described in VT-d spec CH7.10 to drain all page requests and page * responses pending in the hardware. */ -static void intel_svm_drain_prq(struct device *dev, int pasid) +static void intel_svm_drain_prq(struct device *dev, u32 pasid) { struct device_domain_info *info; struct dmar_domain *domain; @@ -1067,10 +1067,10 @@ void intel_svm_unbind(struct iommu_sva *sva) mutex_unlock(&pasid_mutex); } -int intel_svm_get_pasid(struct iommu_sva *sva) +u32 intel_svm_get_pasid(struct iommu_sva *sva) { struct intel_svm_dev *sdev; - int pasid; + u32 pasid; mutex_lock(&pasid_mutex); sdev = to_intel_svm_dev(sva); |