diff options
| author | Jonathan Cavitt <jonathan.cavitt@intel.com> | 2023-07-25 02:19:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-30 16:10:59 +0200 |
| commit | 017d4404312ab94a61be218c0221cd0048a37896 (patch) | |
| tree | 90f5a0f52645cfae8a57ba2e78899d1a9777d779 /drivers | |
| parent | c23126f2c76a17b97520d306542cee32bb26fad8 (diff) | |
| download | linux-017d4404312ab94a61be218c0221cd0048a37896.tar.gz | |
drm/i915/gt: Ensure memory quiesced before invalidation
[ Upstream commit 78a6ccd65fa3a7cc697810db079cc4b84dff03d5 ]
All memory traffic must be quiesced before requesting
an aux invalidation on platforms that use Aux CCS.
Fixes: 972282c4cf24 ("drm/i915/gen12: Add aux table invalidate for all engines")
Requires: a2a4aa0eef3b ("drm/i915: Add the gen12_needs_ccs_aux_inv helper")
Signed-off-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Cc: <stable@vger.kernel.org> # v5.8+
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230725001950.1014671-4-andi.shyti@linux.intel.com
(cherry picked from commit ad8ebf12217e451cd19804b1c3e97ad56491c74a)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/gen8_engine_cs.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c index 8e286733a436..6a8c2fab4ca8 100644 --- a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c @@ -193,7 +193,11 @@ int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode) { struct intel_engine_cs *engine = rq->engine; - if (mode & EMIT_FLUSH) { + /* + * On Aux CCS platforms the invalidation of the Aux + * table requires quiescing memory traffic beforehand + */ + if (mode & EMIT_FLUSH || gen12_needs_ccs_aux_inv(engine)) { u32 flags = 0; u32 *cs; |