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* [PATCH v2 0/4] iommu/vt-d: Disable igfx iommu superpage on bxt/skl/glk
@ 2021-07-14 13:18 ` Ville Syrjala
  0 siblings, 0 replies; 13+ messages in thread
From: Ville Syrjala @ 2021-07-14 13:18 UTC (permalink / raw)
  To: intel-gfx; +Cc: iommu, David Woodhouse

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

I ran into some kind of fail with VT-d superpage on Geminlake igfx,
so without any better ideas let's just disable it.

Additionally Skylake/Broxton igfx have known issues with VT-d
superpage as well, so let's disable it there as well. This should
let us re-enable frame buffer compression (FBC) for some extra
power savings when the display is on.

v2: disable superpage only for the igfx iommu

Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Lu Baolu <baolu.lu@linux.intel.com>
Cc: iommu@lists.linux-foundation.org

Ville Syrjälä (4):
  iommu/vt-d: Disable superpage for Geminilake igfx
  iommu/vt-d: Disable superpage for Broxton igfx
  iommu/vt-d: Disable superpage for Skylake igfx
  drm/i915/fbc: Allow FBC + VT-d on SKL/BXT

 drivers/gpu/drm/i915/display/intel_fbc.c | 16 ------
 drivers/iommu/intel/iommu.c              | 68 +++++++++++++++++++++++-
 2 files changed, 67 insertions(+), 17 deletions(-)

-- 
2.31.1

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^ permalink raw reply	[flat|nested] 13+ messages in thread

end of thread, other threads:[~2021-07-16 17:40 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-14 13:18 [PATCH v2 0/4] iommu/vt-d: Disable igfx iommu superpage on bxt/skl/glk Ville Syrjala
2021-07-14 13:18 ` [Intel-gfx] " Ville Syrjala
2021-07-14 13:18 ` [PATCH v2 1/4] iommu/vt-d: Disable superpage for Geminilake igfx Ville Syrjala
2021-07-14 13:18   ` [Intel-gfx] " Ville Syrjala
2021-07-14 13:18 ` [PATCH v2 2/4] iommu/vt-d: Disable superpage for Broxton igfx Ville Syrjala
2021-07-14 13:18   ` [Intel-gfx] " Ville Syrjala
2021-07-14 13:18 ` [PATCH v2 3/4] iommu/vt-d: Disable superpage for Skylake igfx Ville Syrjala
2021-07-14 13:18   ` [Intel-gfx] " Ville Syrjala
2021-07-14 13:18 ` [PATCH v2 4/4] drm/i915/fbc: Allow FBC + VT-d on SKL/BXT Ville Syrjala
2021-07-14 13:18   ` [Intel-gfx] " Ville Syrjala
2021-07-16 14:03 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for iommu/vt-d: Disable igfx iommu superpage on bxt/skl/glk (rev4) Patchwork
2021-07-16 14:33 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-07-16 17:40 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork

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