drm/amdgpu: Disable PCIE_DPM on Intel RKL Platform

From Koba Ko
45bd9dd1bee8aedc4cbd409b1ba7f9b4f941eea6 in linux 5.10.y/5.10.69
b3dc549986eb7b38eba4a144e979dc93f386751f in mainline linux

diff --git a/sys/dev/pci/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c b/sys/dev/pci/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c
index ea46abe..0d57c16 100644 (file)
--- a/sys/dev/pci/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c
+++ b/sys/dev/pci/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) && defined(__linux__)
+#include <asm/intel-family.h>
+#endif
 #include <drm/amdgpu_drm.h>
 #include "ppatomctrl.h"
 #include "atombios.h"
@@ -1606,6 +1609,17 @@ 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 cpu_info *ci = curcpu();
+
+       return (ci->ci_family == 6 && ci->ci_model == 0xa7);
+#else
+       return false;
+#endif
+}
+
 static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr)
 {
        struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
@@ -1629,7 +1643,8 @@ 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;