From: Bruce Chang <yu.bruce.ch...@intel.com>
Whenever Full soft reset is required, reset all individual engines
first, and then do a full soft reset.
Signed-off-by: Bruce Chang <yu.bruce.ch...@intel.com>
cc: Matt Roper <matthew.d.ro...@intel.com>
Cc: Rodrigo Vivi <rodrigo.v...@intel.com>
Signed-off-by: Ramalingam C <ramalinga...@intel.com>
---
drivers/gpu/drm/i915/gt/intel_reset.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c
b/drivers/gpu/drm/i915/gt/intel_reset.c
index 6f2821cca409..5fae56b89319 100644
--- a/drivers/gpu/drm/i915/gt/intel_reset.c
+++ b/drivers/gpu/drm/i915/gt/intel_reset.c
@@ -600,6 +600,15 @@ static int gen8_reset_engines(struct intel_gt *gt,
*/
}
+ /*
+ * Wa_22011100796:dg2, whenever Full soft reset is required,
+ * reset all individual engines firstly, and then do a full soft reset.
+ *
+ * This is best effort, so ignore any error from the initial reset.
+ */
+ if (IS_DG2(gt->i915) && engine_mask == ALL_ENGINES)
+ gen11_reset_engines(gt, gt->info.engine_mask, 0);
+
if (GRAPHICS_VER(gt->i915) >= 11)
ret = gen11_reset_engines(gt, engine_mask, retry);
else
--
2.20.1
