drm/radeon/kms: add dpm support for rv6xx (v3)

This adds dpm support for rv6xx asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching

Set radeon.dpm=1 to enable.

v2: remove duplicate line
v3: fix thermal interrupt check noticed by Jerome

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index a2faabd..36f66fa 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -402,6 +402,18 @@ int r600_mc_wait_for_idle(struct radeon_device *rdev);
 u32 r600_get_xclk(struct radeon_device *rdev);
 uint64_t r600_get_gpu_clock_counter(struct radeon_device *rdev);
 int rv6xx_get_temp(struct radeon_device *rdev);
+/* rv6xx dpm */
+int rv6xx_dpm_init(struct radeon_device *rdev);
+int rv6xx_dpm_enable(struct radeon_device *rdev);
+void rv6xx_dpm_disable(struct radeon_device *rdev);
+int rv6xx_dpm_set_power_state(struct radeon_device *rdev);
+void rv6xx_setup_asic(struct radeon_device *rdev);
+void rv6xx_dpm_display_configuration_changed(struct radeon_device *rdev);
+void rv6xx_dpm_fini(struct radeon_device *rdev);
+u32 rv6xx_dpm_get_sclk(struct radeon_device *rdev, bool low);
+u32 rv6xx_dpm_get_mclk(struct radeon_device *rdev, bool low);
+void rv6xx_dpm_print_power_state(struct radeon_device *rdev,
+				 struct radeon_ps *ps);
 /* rs780 dpm */
 int rs780_dpm_init(struct radeon_device *rdev);
 int rs780_dpm_enable(struct radeon_device *rdev);