diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 50f57d4dfd8f..b83697b75221 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -151,6 +151,7 @@ struct amdgpu_watchdog_timer */ extern int amdgpu_modeset; extern unsigned int amdgpu_vram_limit; +extern int amdgpu_ignore_min_pcap; extern int amdgpu_vis_vram_limit; extern int amdgpu_gart_size; extern int amdgpu_gtt_size; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index a7ad77ed09ca..2b7ed2e48e33 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -131,6 +131,7 @@ enum AMDGPU_DEBUG_MASK { }; unsigned int amdgpu_vram_limit = UINT_MAX; +int amdgpu_ignore_min_pcap = 1; /* do not ignore by default */ int amdgpu_vis_vram_limit; int amdgpu_gart_size = -1; /* auto */ int amdgpu_gtt_size = -1; /* auto */ @@ -238,6 +239,15 @@ struct amdgpu_watchdog_timer amdgpu_watchdog_timer = { .period = 0x0, /* default to 0x0 (timeout disable) */ }; +/** + * DOC: ignore_min_pcap (int) + * Ignore the minimum power cap. + * Useful on graphics cards where the minimum power cap is very high. + * The default is 0 (Do not ignore). + */ +MODULE_PARM_DESC(ignore_min_pcap, "Ignore the minimum power cap"); +module_param_named(ignore_min_pcap, amdgpu_ignore_min_pcap, int, 0600); + /** * DOC: vramlimit (int) * Restrict the total amount of VRAM in MiB for testing. The default is 0 (Use full VRAM). diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c index 20c53eefd680..6d00cae9caec 100644 --- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c @@ -2984,6 +2984,9 @@ static ssize_t amdgpu_hwmon_show_power_cap_min(struct device *dev, struct device_attribute *attr, char *buf) { + if (amdgpu_ignore_min_pcap) + return sysfs_emit(buf, "%i\n", 0); + return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_MIN); } diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index 60dce148b2d7..72891811b2d5 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -2487,7 +2487,10 @@ int smu_get_power_limit(void *handle, *limit = smu->max_power_limit; break; case SMU_PPT_LIMIT_MIN: - *limit = smu->min_power_limit; + if (amdgpu_ignore_min_pcap) + *limit = 0; + else + *limit = smu->min_power_limit; break; default: return -EINVAL; @@ -2511,7 +2514,14 @@ static int smu_set_power_limit(void *handle, uint32_t limit) if (smu->ppt_funcs->set_power_limit) return smu->ppt_funcs->set_power_limit(smu, limit_type, limit); - if ((limit > smu->max_power_limit) || (limit < smu->min_power_limit)) { + if (amdgpu_ignore_min_pcap) { + if ((limit > smu->max_power_limit)) { + dev_err(smu->adev->dev, + "New power limit (%d) is over the max allowed %d\n", + limit, smu->max_power_limit); + return -EINVAL; + } + } else if ((limit > smu->max_power_limit) || (limit < smu->min_power_limit)) { dev_err(smu->adev->dev, "New power limit (%d) is out of range [%d,%d]\n", limit, smu->min_power_limit, smu->max_power_limit);