diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-25 11:23:27 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-25 11:23:27 +0100 |
| commit | 1d6a81519d9d27b99bca638d14eca63c31111afd (patch) | |
| tree | 8063d42442b46bac5e3defa59de277fecc524ad6 /drivers/iommu/intel/svm.c | |
| parent | 386ce1d748edfdf57f21310647e2d42dd5f737f2 (diff) | |
| parent | 6ee1d745b7c9fd573fba142a2efdad76a9f1cb04 (diff) | |
Merge v5.11-rc5 into usb-next
We need the fixes in here and this resolves a merge issue with
drivers/usb/gadget/udc/bdc/Kconfig.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iommu/intel/svm.c')
| -rw-r--r-- | drivers/iommu/intel/svm.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c index 790ef3497e7e..18a9f05df407 100644 --- a/drivers/iommu/intel/svm.c +++ b/drivers/iommu/intel/svm.c @@ -118,8 +118,10 @@ void intel_svm_check(struct intel_iommu *iommu) iommu->flags |= VTD_FLAG_SVM_CAPABLE; } -static void intel_flush_svm_range_dev (struct intel_svm *svm, struct intel_svm_dev *sdev, - unsigned long address, unsigned long pages, int ih) +static void __flush_svm_range_dev(struct intel_svm *svm, + struct intel_svm_dev *sdev, + unsigned long address, + unsigned long pages, int ih) { struct qi_desc desc; @@ -170,6 +172,22 @@ static void intel_flush_svm_range_dev (struct intel_svm *svm, struct intel_svm_d } } +static void intel_flush_svm_range_dev(struct intel_svm *svm, + struct intel_svm_dev *sdev, + unsigned long address, + unsigned long pages, int ih) +{ + unsigned long shift = ilog2(__roundup_pow_of_two(pages)); + unsigned long align = (1ULL << (VTD_PAGE_SHIFT + shift)); + unsigned long start = ALIGN_DOWN(address, align); + unsigned long end = ALIGN(address + (pages << VTD_PAGE_SHIFT), align); + + while (start < end) { + __flush_svm_range_dev(svm, sdev, start, align >> VTD_PAGE_SHIFT, ih); + start += align; + } +} + static void intel_flush_svm_range(struct intel_svm *svm, unsigned long address, unsigned long pages, int ih) { |