drm/amd/powerplay: Add CG and PG support for tonga

Implement clock and power gating support for tonga.  On Tonga
this is handles by the SMU rather than direct register settings
in the driver.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_clockpowergating.h b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_clockpowergating.h
new file mode 100644
index 0000000..8bc38cb
--- /dev/null
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_clockpowergating.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _TONGA_CLOCK_POWER_GATING_H_
+#define _TONGA_CLOCK_POWER_GATING_H_
+
+#include "tonga_hwmgr.h"
+#include "pp_asicblocks.h"
+
+extern int tonga_phm_set_asic_block_gating(struct pp_hwmgr *hwmgr, enum PHM_AsicBlock block, enum PHM_ClockGateSetting gating);
+extern int tonga_phm_powergate_vce(struct pp_hwmgr *hwmgr, bool bgate);
+extern int tonga_phm_powergate_uvd(struct pp_hwmgr *hwmgr, bool bgate);
+extern int tonga_phm_powerdown_uvd(struct pp_hwmgr *hwmgr);
+extern int tonga_phm_disable_clock_power_gating(struct pp_hwmgr *hwmgr);
+extern int tonga_phm_update_clock_gatings(struct pp_hwmgr *hwmgr, const uint32_t *msg_id);
+#endif /* _TONGA_CLOCK_POWER_GATING_H_ */