diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 114 |
1 files changed, 87 insertions, 27 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index 723ae682bf25..346e80a7119b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -34,6 +34,28 @@ static int amdgpu_debugfs_pm_init(struct amdgpu_device *adev); +static const struct cg_flag_name clocks[] = { + {AMD_CG_SUPPORT_GFX_MGCG, "Graphics Medium Grain Clock Gating"}, + {AMD_CG_SUPPORT_GFX_MGLS, "Graphics Medium Grain memory Light Sleep"}, + {AMD_CG_SUPPORT_GFX_CGCG, "Graphics Coarse Grain Clock Gating"}, + {AMD_CG_SUPPORT_GFX_CGLS, "Graphics Coarse Grain memory Light Sleep"}, + {AMD_CG_SUPPORT_GFX_CGTS, "Graphics Coarse Grain Tree Shader Clock Gating"}, + {AMD_CG_SUPPORT_GFX_CGTS_LS, "Graphics Coarse Grain Tree Shader Light Sleep"}, + {AMD_CG_SUPPORT_GFX_CP_LS, "Graphics Command Processor Light Sleep"}, + {AMD_CG_SUPPORT_GFX_RLC_LS, "Graphics Run List Controller Light Sleep"}, + {AMD_CG_SUPPORT_MC_LS, "Memory Controller Light Sleep"}, + {AMD_CG_SUPPORT_MC_MGCG, "Memory Controller Medium Grain Clock Gating"}, + {AMD_CG_SUPPORT_SDMA_LS, "System Direct Memory Access Light Sleep"}, + {AMD_CG_SUPPORT_SDMA_MGCG, "System Direct Memory Access Medium Grain Clock Gating"}, + {AMD_CG_SUPPORT_BIF_LS, "Bus Interface Light Sleep"}, + {AMD_CG_SUPPORT_UVD_MGCG, "Unified Video Decoder Medium Grain Clock Gating"}, + {AMD_CG_SUPPORT_VCE_MGCG, "Video Compression Engine Medium Grain Clock Gating"}, + {AMD_CG_SUPPORT_HDP_LS, "Host Data Path Light Sleep"}, + {AMD_CG_SUPPORT_HDP_MGCG, "Host Data Path Medium Grain Clock Gating"}, + {AMD_CG_SUPPORT_ROM_MGCG, "Rom Medium Grain Clock Gating"}, + {0, NULL}, +}; + void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev) { if (adev->pp_enabled) @@ -112,28 +134,23 @@ static ssize_t amdgpu_get_dpm_forced_performance_level(struct device *dev, { struct drm_device *ddev = dev_get_drvdata(dev); struct amdgpu_device *adev = ddev->dev_private; + enum amd_dpm_forced_level level; if ((adev->flags & AMD_IS_PX) && (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) return snprintf(buf, PAGE_SIZE, "off\n"); - if (adev->pp_enabled) { - enum amd_dpm_forced_level level; - - level = amdgpu_dpm_get_performance_level(adev); - return snprintf(buf, PAGE_SIZE, "%s\n", - (level == AMD_DPM_FORCED_LEVEL_AUTO) ? "auto" : - (level == AMD_DPM_FORCED_LEVEL_LOW) ? "low" : - (level == AMD_DPM_FORCED_LEVEL_HIGH) ? "high" : - (level == AMD_DPM_FORCED_LEVEL_MANUAL) ? "manual" : "unknown"); - } else { - enum amdgpu_dpm_forced_level level; - - level = adev->pm.dpm.forced_level; - return snprintf(buf, PAGE_SIZE, "%s\n", - (level == AMDGPU_DPM_FORCED_LEVEL_AUTO) ? "auto" : - (level == AMDGPU_DPM_FORCED_LEVEL_LOW) ? "low" : "high"); - } + level = amdgpu_dpm_get_performance_level(adev); + return snprintf(buf, PAGE_SIZE, "%s\n", + (level == AMD_DPM_FORCED_LEVEL_AUTO) ? "auto" : + (level == AMD_DPM_FORCED_LEVEL_LOW) ? "low" : + (level == AMD_DPM_FORCED_LEVEL_HIGH) ? "high" : + (level == AMD_DPM_FORCED_LEVEL_MANUAL) ? "manual" : + (level == AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD) ? "profile_standard" : + (level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK) ? "profile_min_sclk" : + (level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK) ? "profile_min_mclk" : + (level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) ? "profile_peak" : + "unknown"); } static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev, @@ -143,7 +160,8 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev, { struct drm_device *ddev = dev_get_drvdata(dev); struct amdgpu_device *adev = ddev->dev_private; - enum amdgpu_dpm_forced_level level; + enum amd_dpm_forced_level level; + enum amd_dpm_forced_level current_level; int ret = 0; /* Can't force performance level when the card is off */ @@ -151,19 +169,34 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev, (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) return -EINVAL; + current_level = amdgpu_dpm_get_performance_level(adev); + if (strncmp("low", buf, strlen("low")) == 0) { - level = AMDGPU_DPM_FORCED_LEVEL_LOW; + level = AMD_DPM_FORCED_LEVEL_LOW; } else if (strncmp("high", buf, strlen("high")) == 0) { - level = AMDGPU_DPM_FORCED_LEVEL_HIGH; + level = AMD_DPM_FORCED_LEVEL_HIGH; } else if (strncmp("auto", buf, strlen("auto")) == 0) { - level = AMDGPU_DPM_FORCED_LEVEL_AUTO; + level = AMD_DPM_FORCED_LEVEL_AUTO; } else if (strncmp("manual", buf, strlen("manual")) == 0) { - level = AMDGPU_DPM_FORCED_LEVEL_MANUAL; - } else { + level = AMD_DPM_FORCED_LEVEL_MANUAL; + } else if (strncmp("profile_exit", buf, strlen("profile_exit")) == 0) { + level = AMD_DPM_FORCED_LEVEL_PROFILE_EXIT; + } else if (strncmp("profile_standard", buf, strlen("profile_standard")) == 0) { + level = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD; + } else if (strncmp("profile_min_sclk", buf, strlen("profile_min_sclk")) == 0) { + level = AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK; + } else if (strncmp("profile_min_mclk", buf, strlen("profile_min_mclk")) == 0) { + level = AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK; + } else if (strncmp("profile_peak", buf, strlen("profile_peak")) == 0) { + level = AMD_DPM_FORCED_LEVEL_PROFILE_PEAK; + } else { count = -EINVAL; goto fail; } + if (current_level == level) + return count; + if (adev->pp_enabled) amdgpu_dpm_force_performance_level(adev, level); else { @@ -180,6 +213,7 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev, adev->pm.dpm.forced_level = level; mutex_unlock(&adev->pm.mutex); } + fail: return count; } @@ -1060,9 +1094,9 @@ static void amdgpu_dpm_change_power_state_locked(struct amdgpu_device *adev) if (adev->pm.funcs->force_performance_level) { if (adev->pm.dpm.thermal_active) { - enum amdgpu_dpm_forced_level level = adev->pm.dpm.forced_level; + enum amd_dpm_forced_level level = adev->pm.dpm.forced_level; /* force low perf level for thermal */ - amdgpu_dpm_force_performance_level(adev, AMDGPU_DPM_FORCED_LEVEL_LOW); + amdgpu_dpm_force_performance_level(adev, AMD_DPM_FORCED_LEVEL_LOW); /* save the user's level */ adev->pm.dpm.forced_level = level; } else { @@ -1108,12 +1142,22 @@ void amdgpu_dpm_enable_vce(struct amdgpu_device *adev, bool enable) /* XXX select vce level based on ring/task */ adev->pm.dpm.vce_level = AMD_VCE_LEVEL_AC_ALL; mutex_unlock(&adev->pm.mutex); + amdgpu_pm_compute_clocks(adev); + amdgpu_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE, + AMD_PG_STATE_UNGATE); + amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_VCE, + AMD_CG_STATE_UNGATE); } else { + amdgpu_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE, + AMD_PG_STATE_GATE); + amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_VCE, + AMD_CG_STATE_GATE); mutex_lock(&adev->pm.mutex); adev->pm.dpm.vce_active = false; mutex_unlock(&adev->pm.mutex); + amdgpu_pm_compute_clocks(adev); } - amdgpu_pm_compute_clocks(adev); + } } @@ -1252,7 +1296,8 @@ void amdgpu_pm_compute_clocks(struct amdgpu_device *adev) if (!adev->pm.dpm_enabled) return; - amdgpu_display_bandwidth_update(adev); + if (adev->mode_info.num_crtc) + amdgpu_display_bandwidth_update(adev); for (i = 0; i < AMDGPU_MAX_RINGS; i++) { struct amdgpu_ring *ring = adev->rings[i]; @@ -1351,12 +1396,27 @@ static int amdgpu_debugfs_pm_info_pp(struct seq_file *m, struct amdgpu_device *a return 0; } +static void amdgpu_parse_cg_state(struct seq_file *m, u32 flags) +{ + int i; + + for (i = 0; clocks[i].flag; i++) + seq_printf(m, "\t%s: %s\n", clocks[i].name, + (flags & clocks[i].flag) ? "On" : "Off"); +} + static int amdgpu_debugfs_pm_info(struct seq_file *m, void *data) { struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; struct amdgpu_device *adev = dev->dev_private; struct drm_device *ddev = adev->ddev; + u32 flags = 0; + + amdgpu_get_clockgating_state(adev, &flags); + seq_printf(m, "Clock Gating Flags Mask: 0x%x\n", flags); + amdgpu_parse_cg_state(m, flags); + seq_printf(m, "\n"); if (!adev->pm.dpm_enabled) { seq_printf(m, "dpm not enabled\n"); |
