drm/radeon/kms/pm: add asic specific callbacks for setting power state (v2)
(v2) Add evergreen vbl checks
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 094c29d..c2d1946 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -92,6 +92,43 @@
void r600_fini(struct radeon_device *rdev);
void r600_irq_disable(struct radeon_device *rdev);
+void r600_set_power_state(struct radeon_device *rdev)
+{
+ /* if *_clock_mode are the same, *_power_state are as well */
+ if (rdev->pm.requested_clock_mode == rdev->pm.current_clock_mode)
+ return;
+
+ DRM_INFO("Setting: e: %d m: %d p: %d\n",
+ rdev->pm.requested_clock_mode->sclk,
+ rdev->pm.requested_clock_mode->mclk,
+ rdev->pm.requested_power_state->non_clock_info.pcie_lanes);
+
+ /* set pcie lanes */
+ /* TODO */
+
+ /* set voltage */
+ /* TODO */
+
+ /* set engine clock */
+ radeon_sync_with_vblank(rdev);
+ radeon_pm_debug_check_in_vbl(rdev, false);
+ radeon_set_engine_clock(rdev, rdev->pm.requested_clock_mode->sclk);
+ radeon_pm_debug_check_in_vbl(rdev, true);
+
+#if 0
+ /* set memory clock */
+ if (rdev->asic->set_memory_clock) {
+ radeon_sync_with_vblank(rdev);
+ radeon_pm_debug_check_in_vbl(rdev, false);
+ radeon_set_memory_clock(rdev, rdev->pm.requested_clock_mode->mclk);
+ radeon_pm_debug_check_in_vbl(rdev, true);
+ }
+#endif
+
+ rdev->pm.current_power_state = rdev->pm.requested_power_state;
+ rdev->pm.current_clock_mode = rdev->pm.requested_clock_mode;
+}
+
bool r600_gui_idle(struct radeon_device *rdev)
{
if (RREG32(GRBM_STATUS) & GUI_ACTIVE)
