diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2595-drm-amd-powerplay-check-prerequisite-for-VCN-power-g.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2595-drm-amd-powerplay-check-prerequisite-for-VCN-power-g.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2595-drm-amd-powerplay-check-prerequisite-for-VCN-power-g.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2595-drm-amd-powerplay-check-prerequisite-for-VCN-power-g.patch new file mode 100644 index 00000000..97ebd909 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2595-drm-amd-powerplay-check-prerequisite-for-VCN-power-g.patch @@ -0,0 +1,48 @@ +From 00c5b9691211f24c073c20bd8e954cbefc385716 Mon Sep 17 00:00:00 2001 +From: Evan Quan <evan.quan@amd.com> +Date: Mon, 17 Jun 2019 17:27:49 +0800 +Subject: [PATCH 2595/2940] drm/amd/powerplay: check prerequisite for VCN power + gating + +VCN DPM is a necessary prerequisite for VCN power gating. + +Change-Id: Ibfefc7c5031f1faf4ab2f2498b79fe2f7c7aebc6 +Signed-off-by: Evan Quan <evan.quan@amd.com> +Reviewed-by: Kevin Wang <kevin1.wang@amd.com> +--- + drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 16 ++++++++++------ + 1 file changed, 10 insertions(+), 6 deletions(-) + +diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c +index 1c59a0f243ab..e2925e317201 100644 +--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c ++++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c +@@ -574,15 +574,19 @@ static int navi10_dpm_set_uvd_enable(struct smu_context *smu, bool enable) + struct smu_power_gate *power_gate = &smu_power->power_gate; + + if (enable && power_gate->uvd_gated) { +- ret = smu_send_smc_msg_with_param(smu, SMU_MSG_PowerUpVcn, 1); +- if (ret) +- return ret; ++ if (smu_feature_is_enabled(smu, SMU_FEATURE_DPM_UVD_BIT)) { ++ ret = smu_send_smc_msg_with_param(smu, SMU_MSG_PowerUpVcn, 1); ++ if (ret) ++ return ret; ++ } + power_gate->uvd_gated = false; + } else { + if (!enable && !power_gate->uvd_gated) { +- ret = smu_send_smc_msg(smu, SMU_MSG_PowerDownVcn); +- if (ret) +- return ret; ++ if (smu_feature_is_enabled(smu, SMU_FEATURE_DPM_UVD_BIT)) { ++ ret = smu_send_smc_msg(smu, SMU_MSG_PowerDownVcn); ++ if (ret) ++ return ret; ++ } + power_gate->uvd_gated = true; + } + } +-- +2.17.1 + |