AMD polaris GPUs have an issue about audio noise on RKL platform, they provide a commit to fix but for SMU7-based GPU still need another module parameter, modprobe amdgpu ppfeaturemask=0xfff7bffb to avoid the module parameter, switch PCI_DPM by determining intel platform in amd drm driver is a better way. Fixes: 1a31474cdb48 ("drm/amd/pm: workaround for audio noise issue") Ref: https://lists.freedesktop.org/archives/amd-gfx/2021-August/067413.html Signed-off-by: Koba Ko <koba.ko@xxxxxxxxxxxxx> --- .../gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c index 0541bfc81c1b..1d76cf7cd85d 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c @@ -27,6 +27,9 @@ #include <linux/pci.h> #include <linux/slab.h> #include <asm/div64.h> +#if IS_ENABLED(CONFIG_X86_64) +#include <asm/intel-family.h> +#endif #include <drm/amdgpu_drm.h> #include "ppatomctrl.h" #include "atombios.h" @@ -1733,6 +1736,17 @@ static int smu7_disable_dpm_tasks(struct pp_hwmgr *hwmgr) return result; } +static bool intel_core_rkl_chk(void) +{ +#if IS_ENABLED(CONFIG_X86_64) + struct cpuinfo_x86 *c = &cpu_data(0); + + return (c->x86 == 6 && c->x86_model == INTEL_FAM6_ROCKETLAKE); +#else + return false; +#endif +} + static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr) { struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend); @@ -1758,7 +1772,8 @@ static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr) data->mclk_dpm_key_disabled = hwmgr->feature_mask & PP_MCLK_DPM_MASK ? false : true; data->sclk_dpm_key_disabled = hwmgr->feature_mask & PP_SCLK_DPM_MASK ? false : true; - data->pcie_dpm_key_disabled = hwmgr->feature_mask & PP_PCIE_DPM_MASK ? false : true; + data->pcie_dpm_key_disabled = + intel_core_rkl_chk() || !(hwmgr->feature_mask & PP_PCIE_DPM_MASK); /* need to set voltage control types before EVV patching */ data->voltage_control = SMU7_VOLTAGE_CONTROL_NONE; data->vddci_control = SMU7_VOLTAGE_CONTROL_NONE; -- 2.25.1