On 5/3/2022 5:44 PM, Daniele Ceraolo Spurio wrote:
From: Matthew Brost <matthew.brost@xxxxxxxxx>
The EU priority register must be updated by the GuC rather than the
driver as it is context specific and only the GuC knows which context
is currently executing.
Cc: John Harrison <john.c.harrison@xxxxxxxxx>
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Signed-off-by: Matthew Brost <matthew.brost@xxxxxxxxx>
Signed-off-by: Aravind Iddamsetty <aravind.iddamsetty@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index 75291e9846c50..8f3ed60ff07d9 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -2420,6 +2420,8 @@ static void prepare_context_registration_info(struct intel_context *ce,
*/
info->hwlrca_lo = lower_32_bits(ce->lrc.lrca);
info->hwlrca_hi = upper_32_bits(ce->lrc.lrca);
+ if (engine->flags & I915_ENGINE_HAS_EU_PRIORITY)
+ info->hwlrca_lo |= lrc_desc_priority(ce->guc_state.prio);
Just realized that I forgot to squash in a change when I moved branch
(guc_state.prio is the GuC-side value while lrc_desc_priority expects
the i915 one). Ignore this, will fix up and re-send later.
Daniele
info->flags = CONTEXT_REGISTRATION_FLAG_KMD;
/*
