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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2020-05-16 14:20:55 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-05-18 15:37:26 +0200 |
| commit | 8a1d824625402b3ef3c3e5965663354ff0394d86 (patch) | |
| tree | 38ef2a4bd725cd3cdf73e8656fc5cf2e08236fb8 /drivers/iommu/intel_irq_remapping.c | |
| parent | 064a57d7ddfc46ada02b477b91c478001b03bfa3 (diff) | |
| download | lwn-8a1d824625402b3ef3c3e5965663354ff0394d86.tar.gz lwn-8a1d824625402b3ef3c3e5965663354ff0394d86.zip | |
iommu/vt-d: Multiple descriptors per qi_submit_sync()
Current qi_submit_sync() only supports single invalidation descriptor
per submission and appends wait descriptor after each submission to
poll the hardware completion. This extends the qi_submit_sync() helper
to support multiple descriptors, and add an option so that the caller
could specify the Page-request Drain (PD) bit in the wait descriptor.
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20200516062101.29541-13-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel_irq_remapping.c')
| -rw-r--r-- | drivers/iommu/intel_irq_remapping.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c index 81e43c1df7ec..a042f123b091 100644 --- a/drivers/iommu/intel_irq_remapping.c +++ b/drivers/iommu/intel_irq_remapping.c @@ -151,7 +151,7 @@ static int qi_flush_iec(struct intel_iommu *iommu, int index, int mask) desc.qw2 = 0; desc.qw3 = 0; - return qi_submit_sync(&desc, iommu); + return qi_submit_sync(iommu, &desc, 1, 0); } static int modify_irte(struct irq_2_iommu *irq_iommu, |