diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/0089-drm-amd-powerplay-avoid-enabling-disabling-uvd-vce-d.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/0089-drm-amd-powerplay-avoid-enabling-disabling-uvd-vce-d.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/0089-drm-amd-powerplay-avoid-enabling-disabling-uvd-vce-d.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/0089-drm-amd-powerplay-avoid-enabling-disabling-uvd-vce-d.patch new file mode 100644 index 00000000..fd9d9b6d --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/0089-drm-amd-powerplay-avoid-enabling-disabling-uvd-vce-d.patch @@ -0,0 +1,44 @@ +From 247236b22aa72a94ebde753de1fa529f94295ba1 Mon Sep 17 00:00:00 2001 +From: Evan Quan <evan.quan@amd.com> +Date: Thu, 19 Jul 2018 18:40:25 +0800 +Subject: [PATCH 0089/2940] drm/amd/powerplay: avoid enabling/disabling uvd/vce + dpm twice + +For vega20, there are two UVD rings which share one powerplay instance. +Under some case(two rings used parallel), the uvd dpm is disabled twice +which causes the SMC hang. + +Signed-off-by: Evan Quan <evan.quan@amd.com> +Reviewed-by: Rex Zhu <rezhu@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c +index ad6ce148fb3f..c4302bc41a24 100644 +--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c ++++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c +@@ -2464,6 +2464,9 @@ static void vega20_power_gate_vce(struct pp_hwmgr *hwmgr, bool bgate) + { + struct vega20_hwmgr *data = (struct vega20_hwmgr *)(hwmgr->backend); + ++ if (data->vce_power_gated == bgate) ++ return ; ++ + data->vce_power_gated = bgate; + vega20_enable_disable_vce_dpm(hwmgr, !bgate); + } +@@ -2472,6 +2475,9 @@ static void vega20_power_gate_uvd(struct pp_hwmgr *hwmgr, bool bgate) + { + struct vega20_hwmgr *data = (struct vega20_hwmgr *)(hwmgr->backend); + ++ if (data->uvd_power_gated == bgate) ++ return ; ++ + data->uvd_power_gated = bgate; + vega20_enable_disable_uvd_dpm(hwmgr, !bgate); + } +-- +2.17.1 + |