drm/radeon/kms: add dpm support for evergreen (v4)
This adds dpm support for evergreen asics. This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching (requires additional acpi support)
Set radeon.dpm=1 to enable.
v2: reduce stack usage, rename ulv struct
v3: fix thermal interrupt check notices by Jerome
v4: fix state enable
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 09eef28..e1d0796 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -1041,6 +1041,11 @@
case CHIP_RV730:
case CHIP_RV710:
case CHIP_RV740:
+ case CHIP_CEDAR:
+ case CHIP_REDWOOD:
+ case CHIP_JUNIPER:
+ case CHIP_CYPRESS:
+ case CHIP_HEMLOCK:
if (radeon_dpm == 1)
rdev->pm.pm_method = PM_METHOD_DPM;
else