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From 5886c4dbdde92191a881ea36d3d12dd8bc32d8af Mon Sep 17 00:00:00 2001
From: Jay Cornwall <Jay.Cornwall@amd.com>
Date: Wed, 22 Feb 2017 11:04:50 -0600
Subject: [PATCH 1241/4131] drm/amdkfd: Fix Gfx9 AQL MQD initialization
CP_HQD_AQL_CONTROL.CONTROL0_EN should not be set in the initial
MQD state. Doing so can cause intermittent failures in barrier
packet processing.
Clear CP_HQD_AQL_CONTROL.CONTROL0_EN in the initial MQD state.
Signed-off-by: Jay Cornwall <Jay.Cornwall@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c
index 3caeb6e..c80691e 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c
@@ -148,8 +148,7 @@ static int init_mqd(struct mqd_manager *mm, void **mqd,
if (q->format == KFD_QUEUE_FORMAT_AQL) {
m->cp_hqd_aql_control =
- 1 << CP_HQD_AQL_CONTROL__CONTROL0__SHIFT |
- 1 << CP_HQD_AQL_CONTROL__CONTROL0_EN__SHIFT;
+ 1 << CP_HQD_AQL_CONTROL__CONTROL0__SHIFT;
}
if (q->tba_addr) {
--
2.7.4
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