Tejas Upadhyay 4475d3c3b2 iommu/vt-d: Add RPLS to quirk list to skip TE disabling ... [ Upstream commit 0a967f5bfd ] The VT-d spec requires (10.4.4 Global Command Register, TE field) that: Hardware implementations supporting DMA draining must drain any in-flight DMA read/write requests queued within the Root-Complex before completing the translation enable command and reflecting the status of the command through the TES field in the Global Status register. Unfortunately, some integrated graphic devices fail to do so after some kind of power state transition. As the result, the system might stuck in iommu_disable_translati on(), waiting for the completion of TE transition. This adds RPLS to a quirk list for those devices and skips TE disabling if the qurik hits. Link: https://gitlab.freedesktop.org/drm/intel/-/issues/4898 Tested-by: Raviteja Goud Talla <ravitejax.goud.talla@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Tejas Upadhyay <tejaskumarx.surendrakumar.upadhyay@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220302043256.191529-1-tejaskumarx.surendrakumar.upadhyay@intel.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-06-09 10:22:30 +02:00
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cap_audit.c	iommu/vt-d: Move capability check code to cap_audit files	2021-02-04 14:42:00 +01:00
cap_audit.h	iommu/vt-d: Move capability check code to cap_audit files	2021-02-04 14:42:00 +01:00
debugfs.c	iommu/vt-d: Expose latency monitor data through debugfs	2021-06-10 09:06:13 +02:00
dmar.c	iommu/vt-d: Drop "0x" prefix from PCI bus & device addresses	2021-09-28 11:41:11 +02:00
iommu.c	iommu/vt-d: Add RPLS to quirk list to skip TE disabling	2022-06-09 10:22:30 +02:00
irq_remapping.c	iommu/vt-d: Fix potential memory leak in intel_setup_irq_remapping()	2022-02-08 18:34:07 +01:00
Kconfig	iommu/vt-d: Enable Intel IOMMU scalable mode by default	2021-08-19 10:41:08 +02:00
Makefile	iommu/vt-d: Add common code for dmar latency performance monitors	2021-06-10 09:06:13 +02:00
pasid.c	Merge branches 'apple/dart', 'arm/smmu', 'iommu/fixes', 'x86/amd', 'x86/vt-d' and 'core' into next	2021-08-20 17:14:35 +02:00
pasid.h	Merge branches 'apple/dart', 'arm/smmu', 'iommu/fixes', 'x86/amd', 'x86/vt-d' and 'core' into next	2021-08-20 17:14:35 +02:00
perf.c	iommu/vt-d: Drop the kernel doc annotation	2021-08-19 10:41:08 +02:00
perf.h	iommu/vt-d: Add common code for dmar latency performance monitors	2021-06-10 09:06:13 +02:00
svm.c	iommu/vt-d: Drop stop marker messages	2022-05-12 12:30:12 +02:00
trace.c