From 20bc41fa7e90912ad7dbb216cb890aeb4de3cd2f Mon Sep 17 00:00:00 2001
From: Tianci Yin <tianci.yin@amd.com>
Date: Tue, 15 Mar 2022 09:58:09 +0800
Subject: drm/amdgpu/vcn: fix vcn ring test failure in igt reload test
Git-commit: 4e2f50e2306fdd0e5fc7db3d9a452ba1327b787e
Patch-mainline: v5.18-rc1
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
[why]
On Renoir, vcn ring test failed on the second time insmod in the reload
test. After investigation, it proves that vcn only can disable dpg under
dpg unpause mode (dpg unpause mode is default for dec only, dpg pause
mode is for dec/enc).
[how]
unpause dpg in dpg stopping procedure.
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Tianci Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
index 8cb2124405f6..7a7f35e83dd5 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
@@ -1098,8 +1098,10 @@ static int vcn_v2_0_start(struct amdgpu_device *adev)
static int vcn_v2_0_stop_dpg_mode(struct amdgpu_device *adev)
{
+ struct dpg_pause_state state = {.fw_based = VCN_DPG_STATE__UNPAUSE};
uint32_t tmp;
+ vcn_v2_0_pause_dpg_mode(adev, 0, &state);
/* Wait for power status to be 1 */
SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS, 1,
UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
--
2.38.1