1 files changed, 119 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_clockpowergating.c b/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_clockpowergating.c
new file mode 100644
index 0000000..47949f5
--- /dev/null
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_clockpowergating.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright 2016 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.
+ *
+ * Author: Huang Rui <ray.huang@amd.com>
+ *
+ */
+
+#include "hwmgr.h"
+#include "iceland_clockpowergating.h"
+#include "ppsmc.h"
+#include "iceland_hwmgr.h"
+
+int iceland_phm_powerdown_uvd(struct pp_hwmgr *hwmgr)
+{
+	/* iceland does not have MM hardware block */
+	return 0;
+}
+
+static int iceland_phm_powerup_uvd(struct pp_hwmgr *hwmgr)
+{
+	/* iceland does not have MM hardware block */
+	return 0;
+}
+
+static int iceland_phm_powerdown_vce(struct pp_hwmgr *hwmgr)
+{
+	/* iceland does not have MM hardware block */
+	return 0;
+}
+
+static int iceland_phm_powerup_vce(struct pp_hwmgr *hwmgr)
+{
+	/* iceland does not have MM hardware block */
+	return 0;
+}
+
+int iceland_phm_set_asic_block_gating(struct pp_hwmgr *hwmgr, enum
+		PHM_AsicBlock block, enum PHM_ClockGateSetting gating)
+{
+	int ret = 0;
+
+	switch (block) {
+	case PHM_AsicBlock_UVD_MVC:
+	case PHM_AsicBlock_UVD:
+	case PHM_AsicBlock_UVD_HD:
+	case PHM_AsicBlock_UVD_SD:
+		if (gating == PHM_ClockGateSetting_StaticOff)
+			ret = iceland_phm_powerdown_uvd(hwmgr);
+		else
+			ret = iceland_phm_powerup_uvd(hwmgr);
+		break;
+	case PHM_AsicBlock_GFX:
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+int iceland_phm_disable_clock_power_gating(struct pp_hwmgr *hwmgr)
+{
+	struct iceland_hwmgr *data = (struct iceland_hwmgr *)(hwmgr->backend);
+
+	data->uvd_power_gated = false;
+	data->vce_power_gated = false;
+
+	iceland_phm_powerup_uvd(hwmgr);
+	iceland_phm_powerup_vce(hwmgr);
+
+	return 0;
+}
+
+int iceland_phm_powergate_uvd(struct pp_hwmgr *hwmgr, bool bgate)
+{
+	if (bgate) {
+		iceland_update_uvd_dpm(hwmgr, true);
+		iceland_phm_powerdown_uvd(hwmgr);
+	} else {
+		iceland_phm_powerup_uvd(hwmgr);
+		iceland_update_uvd_dpm(hwmgr, false);
+	}
+
+	return 0;
+}
+
+int iceland_phm_powergate_vce(struct pp_hwmgr *hwmgr, bool bgate)
+{
+	if (bgate)
+		return iceland_phm_powerdown_vce(hwmgr);
+	else
+		return iceland_phm_powerup_vce(hwmgr);
+
+	return 0;
+}
+
+int iceland_phm_update_clock_gatings(struct pp_hwmgr *hwmgr,
+					const uint32_t *msg_id)
+{
+	/* iceland does not have MM hardware block */
+	return 0;
+}