[PATCH] drm/i915/perf: fix gen11 engine class shift

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Use the correct engine class shift value while storing the ctx hw id.
Fixes the copy+paste error from commit 61d5676b5561 ("drm/i915/perf: fix
ctx_id read with GuC & ICL").

Apologies for not spotting this in the original review, the
specific_ctx_id_mask is correct, only the specific_ctx_id had this
problem.

Signed-off-by: Michel Thierry <michel.thierry@xxxxxxxxx>
Cc: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_perf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index a6c8d61add0c..c15c7b0fb482 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1291,7 +1291,7 @@ static int oa_get_render_ctx_id(struct i915_perf_stream *stream)
 		i915->perf.oa.specific_ctx_id =
 			stream->ctx->hw_id << (GEN11_SW_CTX_ID_SHIFT - 32) |
 			engine->instance << (GEN11_ENGINE_INSTANCE_SHIFT - 32) |
-			engine->class << (GEN11_ENGINE_INSTANCE_SHIFT - 32);
+			engine->class << (GEN11_ENGINE_CLASS_SHIFT - 32);
 		i915->perf.oa.specific_ctx_id_mask =
 			((1U << GEN11_SW_CTX_ID_WIDTH) - 1) << (GEN11_SW_CTX_ID_SHIFT - 32) |
 			((1U << GEN11_ENGINE_INSTANCE_WIDTH) - 1) << (GEN11_ENGINE_INSTANCE_SHIFT - 32) |
-- 
2.17.1

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