* [PATCH] drm/amdgpu/vcn: improve vcn dpg stop procedure
@ 2022-03-23 16:01 Tianci Yin
2022-03-23 18:41 ` Zhu, James
0 siblings, 1 reply; 2+ messages in thread
From: Tianci Yin @ 2022-03-23 16:01 UTC (permalink / raw)
To: amd-gfx; +Cc: Wang Yu, Zhu James, Tianci Yin, Guchun Chen
Prior to disabling dpg, VCN need unpausing dpg mode, or VCN will hang in
S3 resuming.
Signed-off-by: Tianci Yin <tianci.yin@amd.com>
---
drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
index b16c56aa2d22..0d590183328f 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
@@ -1480,8 +1480,11 @@ static int vcn_v3_0_start_sriov(struct amdgpu_device *adev)
static int vcn_v3_0_stop_dpg_mode(struct amdgpu_device *adev, int inst_idx)
{
+ struct dpg_pause_state state = {.fw_based = VCN_DPG_STATE__UNPAUSE};
uint32_t tmp;
+ vcn_v3_0_pause_dpg_mode(adev, 0, &state);
+
/* Wait for power status to be 1 */
SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_POWER_STATUS, 1,
UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] drm/amdgpu/vcn: improve vcn dpg stop procedure
2022-03-23 16:01 [PATCH] drm/amdgpu/vcn: improve vcn dpg stop procedure Tianci Yin
@ 2022-03-23 18:41 ` Zhu, James
0 siblings, 0 replies; 2+ messages in thread
From: Zhu, James @ 2022-03-23 18:41 UTC (permalink / raw)
To: Yin, Tianci (Rico), amd-gfx; +Cc: Wang, Yu (Charlie), Chen, Guchun
[-- Attachment #1: Type: text/plain, Size: 1453 bytes --]
[AMD Official Use Only]
This patch is Reviewed-by: James Zhu <James.Zhu@amd.com>
________________________________
From: Tianci Yin <tianci.yin@amd.com>
Sent: Wednesday, March 23, 2022 12:01 PM
To: amd-gfx@lists.freedesktop.org <amd-gfx@lists.freedesktop.org>
Cc: Chen, Guchun <Guchun.Chen@amd.com>; Zhu, James <James.Zhu@amd.com>; Wang, Yu (Charlie) <Yu.Wang4@amd.com>; Yin, Tianci (Rico) <Tianci.Yin@amd.com>
Subject: [PATCH] drm/amdgpu/vcn: improve vcn dpg stop procedure
Prior to disabling dpg, VCN need unpausing dpg mode, or VCN will hang in
S3 resuming.
Signed-off-by: Tianci Yin <tianci.yin@amd.com>
---
drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
index b16c56aa2d22..0d590183328f 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c
@@ -1480,8 +1480,11 @@ static int vcn_v3_0_start_sriov(struct amdgpu_device *adev)
static int vcn_v3_0_stop_dpg_mode(struct amdgpu_device *adev, int inst_idx)
{
+ struct dpg_pause_state state = {.fw_based = VCN_DPG_STATE__UNPAUSE};
uint32_t tmp;
+ vcn_v3_0_pause_dpg_mode(adev, 0, &state);
+
/* Wait for power status to be 1 */
SOC15_WAIT_ON_RREG(VCN, inst_idx, mmUVD_POWER_STATUS, 1,
UVD_POWER_STATUS__UVD_POWER_STATUS_MASK);
--
2.25.1
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