drm/amd/pm: disable BACO entry/exit completely on several sienna cichlid cards

From Guchun Chen
f76d6f309a685d24a32703b4d5c5a71e76f4b793 in linux 5.15.y/5.15.71
7c6fb61a400bf3218c6504cb2d48858f98822c9d in mainline linux

diff --git a/sys/dev/pci/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/sys/dev/pci/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
index 628f896..0e49900 100644 (file)
--- a/sys/dev/pci/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
+++ b/sys/dev/pci/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
@@ -358,6 +358,17 @@ static void sienna_cichlid_check_bxco_support(struct smu_context *smu)
                smu_baco->platform_support =
                        (val & RCC_BIF_STRAP0__STRAP_PX_CAPABLE_MASK) ? true :
                                                                        false;
+
+               /*
+                * Disable BACO entry/exit completely on below SKUs to
+                * avoid hardware intermittent failures.
+                */
+               if (((adev->pdev->device == 0x73A1) &&
+                   (adev->pdev->revision == 0x00)) ||
+                   ((adev->pdev->device == 0x73BF) &&
+                   (adev->pdev->revision == 0xCF)))
+                       smu_baco->platform_support = false;
+
        }
 }