diff options
author | Huang Rui | 2018-12-25 09:34:39 +0100 |
---|---|---|
committer | Alex Deucher | 2019-03-19 21:03:57 +0100 |
commit | 7457cf02540571e17ce464e5cb1865cfb020de31 (patch) | |
tree | 7e0e69c448b56090b03da38baebe171f4cef63f7 /drivers/gpu/drm/amd/powerplay/smu_v11_0.c | |
parent | drm/amd/powerplay: print clock levels for smu11 (v2) (diff) | |
download | kernel-qcow2-linux-7457cf02540571e17ce464e5cb1865cfb020de31.tar.gz kernel-qcow2-linux-7457cf02540571e17ce464e5cb1865cfb020de31.tar.xz kernel-qcow2-linux-7457cf02540571e17ce464e5cb1865cfb020de31.zip |
drm/amd/powerplay: add get_max_sustainable_clock function
This patch adds get_max_sustainable_clock function for smu11.
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Kevin Wang <Kevin1.Wang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/smu_v11_0.c')
-rw-r--r-- | drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c index def64f5a967d..129d2b1c1487 100644 --- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c +++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c @@ -738,6 +738,119 @@ static int smu_v11_0_notify_display_change(struct smu_context *smu) return ret; } +static int +smu_v11_0_get_max_sustainable_clock(struct smu_context *smu, uint32_t *clock, + PPCLK_e clock_select) +{ + int ret = 0; + + ret = smu_send_smc_msg_with_param(smu, SMU_MSG_GetDcModeMaxDpmFreq, + clock_select << 16); + if (ret) { + pr_err("[GetMaxSustainableClock] Failed to get max DC clock from SMC!"); + return ret; + } + + ret = smu_read_smc_arg(smu, clock); + if (ret) + return ret; + + if (*clock != 0) + return 0; + + /* if DC limit is zero, return AC limit */ + ret = smu_send_smc_msg_with_param(smu, SMU_MSG_GetMaxDpmFreq, + clock_select << 16); + if (ret) { + pr_err("[GetMaxSustainableClock] failed to get max AC clock from SMC!"); + return ret; + } + + ret = smu_read_smc_arg(smu, clock); + + return ret; +} + +static int smu_v11_0_init_max_sustainable_clocks(struct smu_context *smu) +{ + struct smu_11_0_max_sustainable_clocks *max_sustainable_clocks; + int ret = 0; + + max_sustainable_clocks = kzalloc(sizeof(struct smu_11_0_max_sustainable_clocks), + GFP_KERNEL); + smu->smu_table.max_sustainable_clocks = (void *)max_sustainable_clocks; + + max_sustainable_clocks->uclock = smu->smu_table.boot_values.uclk / 100; + max_sustainable_clocks->soc_clock = smu->smu_table.boot_values.socclk / 100; + max_sustainable_clocks->dcef_clock = smu->smu_table.boot_values.dcefclk / 100; + max_sustainable_clocks->display_clock = 0xFFFFFFFF; + max_sustainable_clocks->phy_clock = 0xFFFFFFFF; + max_sustainable_clocks->pixel_clock = 0xFFFFFFFF; + + if (smu_feature_is_enabled(smu, FEATURE_DPM_UCLK_BIT)) { + ret = smu_v11_0_get_max_sustainable_clock(smu, + &(max_sustainable_clocks->uclock), + PPCLK_UCLK); + if (ret) { + pr_err("[%s] failed to get max UCLK from SMC!", + __func__); + return ret; + } + } + + if (smu_feature_is_enabled(smu, FEATURE_DPM_SOCCLK_BIT)) { + ret = smu_v11_0_get_max_sustainable_clock(smu, + &(max_sustainable_clocks->soc_clock), + PPCLK_SOCCLK); + if (ret) { + pr_err("[%s] failed to get max SOCCLK from SMC!", + __func__); + return ret; + } + } + + if (smu_feature_is_enabled(smu, FEATURE_DPM_DCEFCLK_BIT)) { + ret = smu_v11_0_get_max_sustainable_clock(smu, + &(max_sustainable_clocks->dcef_clock), + PPCLK_DCEFCLK); + if (ret) { + pr_err("[%s] failed to get max DCEFCLK from SMC!", + __func__); + return ret; + } + + ret = smu_v11_0_get_max_sustainable_clock(smu, + &(max_sustainable_clocks->display_clock), + PPCLK_DISPCLK); + if (ret) { + pr_err("[%s] failed to get max DISPCLK from SMC!", + __func__); + return ret; + } + ret = smu_v11_0_get_max_sustainable_clock(smu, + &(max_sustainable_clocks->phy_clock), + PPCLK_PHYCLK); + if (ret) { + pr_err("[%s] failed to get max PHYCLK from SMC!", + __func__); + return ret; + } + ret = smu_v11_0_get_max_sustainable_clock(smu, + &(max_sustainable_clocks->pixel_clock), + PPCLK_PIXCLK); + if (ret) { + pr_err("[%s] failed to get max PIXCLK from SMC!", + __func__); + return ret; + } + } + + if (max_sustainable_clocks->soc_clock < max_sustainable_clocks->uclock) + max_sustainable_clocks->uclock = max_sustainable_clocks->soc_clock; + + return 0; +} + static int smu_v11_0_get_power_limit(struct smu_context *smu) { int ret; @@ -810,6 +923,7 @@ static const struct smu_funcs smu_v11_0_funcs = { .notify_display_change = smu_v11_0_notify_display_change, .get_power_limit = smu_v11_0_get_power_limit, .get_current_clk_freq = smu_v11_0_get_current_clk_freq, + .init_max_sustainable_clocks = smu_v11_0_init_max_sustainable_clocks, }; void smu_v11_0_set_smu_funcs(struct smu_context *smu) |