drm/amd/powerplay: add the hw manager for vega20 (v3)

hwmgr is the interface for the driver to setup state
structures which are used by the smu for managing the
power state.

v2: squash in fixes:
- update set_watermarks_for_clocks_ranges to use common code
- drop unsupported apis
- correct MAX_REGULAR_DPM_NUMBER value
- multimonitor fixes
- add check for vbios pptable version
- revise dpm table setup
- init fclk dpm state
- Remove unused definition in vega20_hwmgr
- support power limit setup
- enable vega20 to honour DAL clock limits
- comment out dump_table debugging
v3: switch to SOC15 register access macros

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_powertune.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_powertune.c
new file mode 100644
index 000000000000..a0bfb65cc5d6
--- /dev/null
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_powertune.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2018 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.
+ *
+ */
+
+#include "hwmgr.h"
+#include "vega20_hwmgr.h"
+#include "vega20_powertune.h"
+#include "vega20_smumgr.h"
+#include "vega20_ppsmc.h"
+#include "vega20_inc.h"
+#include "pp_debug.h"
+
+int vega20_set_power_limit(struct pp_hwmgr *hwmgr, uint32_t n)
+{
+	struct vega20_hwmgr *data =
+			(struct vega20_hwmgr *)(hwmgr->backend);
+
+	if (data->smu_features[GNLD_PPT].enabled)
+		return smum_send_msg_to_smc_with_parameter(hwmgr,
+				PPSMC_MSG_SetPptLimit, n);
+
+	return 0;
+}
+
+int vega20_validate_power_level_request(struct pp_hwmgr *hwmgr,
+		uint32_t tdp_percentage_adjustment, uint32_t tdp_absolute_value_adjustment)
+{
+	return (tdp_percentage_adjustment > hwmgr->platform_descriptor.TDPLimit) ? -1 : 0;
+}
+
+static int vega20_set_overdrive_target_percentage(struct pp_hwmgr *hwmgr,
+		uint32_t adjust_percent)
+{
+	return smum_send_msg_to_smc_with_parameter(hwmgr,
+			PPSMC_MSG_OverDriveSetPercentage, adjust_percent);
+}
+
+int vega20_power_control_set_level(struct pp_hwmgr *hwmgr)
+{
+	int adjust_percent, result = 0;
+
+	if (PP_CAP(PHM_PlatformCaps_PowerContainment)) {
+		adjust_percent =
+				hwmgr->platform_descriptor.TDPAdjustmentPolarity ?
+				hwmgr->platform_descriptor.TDPAdjustment :
+				(-1 * hwmgr->platform_descriptor.TDPAdjustment);
+		result = vega20_set_overdrive_target_percentage(hwmgr,
+				(uint32_t)adjust_percent);
+	}
+	return result;
+}