From: CQ Tang <cq.t...@intel.com>
During high threads contention, the same object had been pinned
with a different type. A new pinning will catch -EBUSY if the
FORCE flag is not specified.
This error was observed on DG1 silicon during PO.
Cc: Matthew Auld <matthew.a...@intel.com>
Cc: Lucas De Marchi <lucas.demar...@intel.com>
Cc: Abdiel Janulgue <abdiel.janul...@linux.intel.com>
Cc: Balestrieri, Francesco <francesco.balestri...@intel.com>
Cc: Niranjana Vishwanathapura <niranjana.vishwanathap...@intel.com>
Cc: Venkata S Dhanalakota <venkata.s.dhanalak...@intel.com>
Cc: Neel Desai <neel.de...@intel.com>
Cc: Matthew Brost <matthew.br...@intel.com>
Cc: Sudeep Dutt <sudeep.d...@intel.com>
Signed-off-by: CQ Tang <cq.t...@intel.com>
---
drivers/gpu/drm/i915/gem/i915_gem_object_blt.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_blt.c
b/drivers/gpu/drm/i915/gem/i915_gem_object_blt.c
index b41b076f6864..1096f27627d4 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object_blt.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object_blt.c
@@ -57,7 +57,7 @@ struct i915_vma *intel_emit_vma_fill_blt(struct intel_context
*ce,
/* we pinned the pool, mark it as such */
intel_gt_buffer_pool_mark_used(pool);
- cmd = i915_gem_object_pin_map(pool->obj, I915_MAP_WC);
+ cmd = i915_gem_object_pin_map(pool->obj, I915_MAP_FORCE_WC);
if (IS_ERR(cmd)) {
err = PTR_ERR(cmd);
goto out_unpin;
@@ -297,7 +297,7 @@ struct i915_vma *intel_emit_vma_copy_blt(struct
intel_context *ce,
/* we pinned the pool, mark it as such */
intel_gt_buffer_pool_mark_used(pool);
- cmd = i915_gem_object_pin_map(pool->obj, I915_MAP_WC);
+ cmd = i915_gem_object_pin_map(pool->obj, I915_MAP_FORCE_WC);
if (IS_ERR(cmd)) {
err = PTR_ERR(cmd);
goto out_unpin;
--
2.26.2
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