From 50993d89da8d65123f58ffc2e5ff632464e2b7cf Mon Sep 17 00:00:00 2001
From: Graham Sider <Graham.Sider@amd.com>
Date: Fri, 23 Sep 2022 10:07:15 -0400
Subject: drm/amdkfd: fix dropped interrupt in kfd_int_process_v11
Git-commit: 664883ddde67971d59764f2dda855183ecf8bc46
Patch-mainline: v6.0
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
Shader wave interrupts were getting dropped in event_interrupt_wq_v11
if the PRIV bit was set to 1. This would often lead to a hang. Until
debugger logic is upstreamed, expand comment to stop early return.
Signed-off-by: Graham Sider <Graham.Sider@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdkfd/kfd_int_process_v11.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_int_process_v11.c b/drivers/gpu/drm/amd/amdkfd/kfd_int_process_v11.c
index a6fcbeeb7428..0d53f6067422 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_int_process_v11.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_int_process_v11.c
@@ -350,11 +350,11 @@ static void event_interrupt_wq_v11(struct kfd_dev *dev,
print_sq_intr_info_inst(context_id0, context_id1);
sq_int_priv = REG_GET_FIELD(context_id0,
SQ_INTERRUPT_WORD_WAVE_CTXID0, PRIV);
- if (sq_int_priv /*&& (kfd_set_dbg_ev_from_interrupt(dev, pasid,
+ /*if (sq_int_priv && (kfd_set_dbg_ev_from_interrupt(dev, pasid,
KFD_CTXID0_DOORBELL_ID(context_id0),
KFD_CTXID0_TRAP_CODE(context_id0),
- NULL, 0))*/)
- return;
+ NULL, 0)))
+ return;*/
break;
case SQ_INTERRUPT_WORD_ENCODING_ERROR:
print_sq_intr_info_error(context_id0, context_id1);
--
2.38.1