From: Prike Liang Date: Mon, 16 Sep 2019 07:56:52 +0000 (+0800) Subject: drm/amd/powerplay: implement VCN power gating control interface X-Git-Tag: v5.5-rc1~128^2~26^2~156 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=08dac62f3e20f1069a8a7e0a1938a3a18886af20;p=linux.git drm/amd/powerplay: implement VCN power gating control interface VCN Gate/Ungate by processing the SMU power up/down message, otherwise S3 will resume failed as JPEG always power off during start VCN stage. Signed-off-by: Prike Liang Reviewed-by: Evan Quan Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c index 2c22ba49c453..9311b6acc34d 100644 --- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c +++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c @@ -278,6 +278,32 @@ static enum amd_pm_state_type renoir_get_current_power_state(struct smu_context return pm_type; } +static int renoir_dpm_set_uvd_enable(struct smu_context *smu, bool enable) +{ + struct smu_power_context *smu_power = &smu->smu_power; + struct smu_power_gate *power_gate = &smu_power->power_gate; + int ret = 0; + + if (enable) { + /* vcn dpm on is a prerequisite for vcn power gate messages */ + if (smu_feature_is_enabled(smu, SMU_FEATURE_VCN_PG_BIT)) { + ret = smu_send_smc_msg_with_param(smu, SMU_MSG_PowerUpVcn, 1); + if (ret) + return ret; + } + power_gate->vcn_gated = false; + } else { + if (smu_feature_is_enabled(smu, SMU_FEATURE_VCN_PG_BIT)) { + ret = smu_send_smc_msg(smu, SMU_MSG_PowerDownVcn); + if (ret) + return ret; + } + power_gate->vcn_gated = true; + } + + return ret; +} + static const struct pptable_funcs renoir_ppt_funcs = { .get_smu_msg_index = renoir_get_smu_msg_index, .get_smu_table_index = renoir_get_smu_table_index, @@ -286,7 +312,7 @@ static const struct pptable_funcs renoir_ppt_funcs = { .get_dpm_uclk_limited = renoir_get_dpm_uclk_limited, .print_clk_levels = renoir_print_clk_levels, .get_current_power_state = renoir_get_current_power_state, - + .dpm_set_uvd_enable = renoir_dpm_set_uvd_enable, }; void renoir_set_ppt_funcs(struct smu_context *smu)