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* [PATCH] drm/i915/tgl: Disable read-only support
@ 2019-09-11 12:57 Chris Wilson
  2019-09-11 13:08 ` Mika Kuoppala
                   ` (3 more replies)
  0 siblings, 4 replies; 6+ messages in thread
From: Chris Wilson @ 2019-09-11 12:57 UTC (permalink / raw)
  To: intel-gfx

The same read-only affliction as befell Icelake is affecting Tigerlake.
Disable the read-only support as cleary it was not fixed.

Testcase: igt/i915_selftests/live_gem_context
References: 3936867dbc1e ("drm/i915: Disable read only ppgtt support for gen11")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index e4f66bfe74c2..a09a9b62afbe 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1486,8 +1486,10 @@ static struct i915_ppgtt *gen8_ppgtt_create(struct drm_i915_private *i915)
 	 *
 	 * Gen11 has HSDES#:1807136187 unresolved. Disable ro support
 	 * for now.
+	 *
+	 * Gen12 has inherited the same read-only fault issue from gen11.
 	 */
-	ppgtt->vm.has_read_only = INTEL_GEN(i915) != 11;
+	ppgtt->vm.has_read_only = !IS_GEN_RANGE(i915, 11, 12);
 
 	/* There are only few exceptions for gen >=6. chv and bxt.
 	 * And we are not sure about the latter so play safe for now.
-- 
2.23.0

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^ permalink raw reply related	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2019-09-11 23:11 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2019-09-11 12:57 [PATCH] drm/i915/tgl: Disable read-only support Chris Wilson
2019-09-11 13:08 ` Mika Kuoppala
2019-09-11 15:11   ` Chris Wilson
2019-09-11 13:38 ` ✗ Fi.CI.CHECKPATCH: warning for " Patchwork
2019-09-11 14:11 ` ✓ Fi.CI.BAT: success " Patchwork
2019-09-11 23:11 ` ✓ Fi.CI.IGT: " Patchwork

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