[PATCH 1/2] drm/amdgpu: Don't query CE and UE errors

[Luben Tuikov]

On QUERY2 IOCTL don't query counts of correctable
and uncorrectable errors, since when RAS is
enabled and supported on Vega20 server boards,
this takes insurmountably long time, in O(n^3),
which slows the system down to the point of it
being unusable when we have GUI up.

Fixes: ae363a212b14 ("drm/amdgpu: Add a new flag to AMDGPU_CTX_OP_QUERY_STATE2")
Cc: Alexander Deucher <Alexander.Deucher at amd.com>
Cc: stable at vger.kernel.org
Signed-off-by: Luben Tuikov <luben.tuikov at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 26 ++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
index 01fe60fedcbe..d481a33f4eaf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -363,19 +363,19 @@ static int amdgpu_ctx_query2(struct amdgpu_device *adev,
 		out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_GUILTY;
 
 	/*query ue count*/
-	ras_counter = amdgpu_ras_query_error_count(adev, false);
-	/*ras counter is monotonic increasing*/
-	if (ras_counter != ctx->ras_counter_ue) {
-		out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_RAS_UE;
-		ctx->ras_counter_ue = ras_counter;
-	}
-
-	/*query ce count*/
-	ras_counter = amdgpu_ras_query_error_count(adev, true);
-	if (ras_counter != ctx->ras_counter_ce) {
-		out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_RAS_CE;
-		ctx->ras_counter_ce = ras_counter;
-	}
+	/* ras_counter = amdgpu_ras_query_error_count(adev, false); */
+	/* /\*ras counter is monotonic increasing*\/ */
+	/* if (ras_counter != ctx->ras_counter_ue) { */
+	/* 	out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_RAS_UE; */
+	/* 	ctx->ras_counter_ue = ras_counter; */
+	/* } */
+
+	/* /\*query ce count*\/ */
+	/* ras_counter = amdgpu_ras_query_error_count(adev, true); */
+	/* if (ras_counter != ctx->ras_counter_ce) { */
+	/* 	out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_RAS_CE; */
+	/* 	ctx->ras_counter_ce = ras_counter; */
+	/* } */
 
 	mutex_unlock(&mgr->lock);
 	return 0;
-- 
2.31.1.527.g2d677e5b15