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| author | Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com> | 2019-05-24 16:40:16 -0700 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2019-05-27 16:16:09 +0200 |
| commit | cdd3a2499d30695730b22dc025c00b9b28884c6b (patch) | |
| tree | e6b9a78cf6c89d436bf89fe43f630fde179fafb1 /drivers/iommu/intel-iommu.c | |
| parent | ea09506c363e90ef0b7532fdcf187bb67281a5e6 (diff) | |
| download | linux-cdd3a2499d30695730b22dc025c00b9b28884c6b.tar.bz2 | |
iommu/vt-d: Introduce macros useful for dumping DMAR table
A scalable mode DMAR table walk would involve looking at bits in each stage
of walk, like,
1. Is PASID enabled in the context entry?
2. What's the size of PASID directory?
3. Is the PASID directory entry present?
4. Is the PASID table entry present?
5. Number of PASID table entries?
Hence, add these macros that will later be used during this walk.
Apart from adding new macros, move existing macros (like
pasid_pde_is_present(), get_pasid_table_from_pde() and pasid_supported())
to appropriate header files so that they could be reused.
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Sohil Mehta <sohil.mehta@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel-iommu.c')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 1b7ad80c0537..9722c2ffe428 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -357,6 +357,7 @@ int dmar_disabled = 0; int dmar_disabled = 1; #endif /*CONFIG_INTEL_IOMMU_DEFAULT_ON*/ +int intel_iommu_sm; int intel_iommu_enabled = 0; EXPORT_SYMBOL_GPL(intel_iommu_enabled); @@ -364,17 +365,12 @@ static int dmar_map_gfx = 1; static int dmar_forcedac; static int intel_iommu_strict; static int intel_iommu_superpage = 1; -static int intel_iommu_sm; static int iommu_identity_mapping; #define IDENTMAP_ALL 1 #define IDENTMAP_GFX 2 #define IDENTMAP_AZALIA 4 -#define sm_supported(iommu) (intel_iommu_sm && ecap_smts((iommu)->ecap)) -#define pasid_supported(iommu) (sm_supported(iommu) && \ - ecap_pasid((iommu)->ecap)) - int intel_iommu_gfx_mapped; EXPORT_SYMBOL_GPL(intel_iommu_gfx_mapped); |