[PATCH 39/42] drm/amd/powerplay: add new pp_psm infrastructure for vega12 (v2)

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From: Evan Quan <evan.quan@xxxxxxx>

New psm infrastructure for vega12.

v2: rebase (Alex)

Signed-off-by: Evan Quan <evan.quan at amd.com>
Acked-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/Makefile       |   2 +-
 drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c       | 244 +++----------------
 .../gpu/drm/amd/powerplay/hwmgr/pp_psm_legacy.c    | 262 +++++++++++++++++++++
 .../gpu/drm/amd/powerplay/hwmgr/pp_psm_legacy.h    |  40 ++++
 drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_new.c   |  76 ++++++
 drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_new.h   |  40 ++++
 6 files changed, 452 insertions(+), 212 deletions(-)
 create mode 100644 drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_legacy.c
 create mode 100644 drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_legacy.h
 create mode 100644 drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_new.c
 create mode 100644 drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_new.h

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/Makefile b/drivers/gpu/drm/amd/powerplay/hwmgr/Makefile
index f868b955da92..c1249e03c912 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/Makefile
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/Makefile
@@ -31,7 +31,7 @@ HARDWARE_MGR = hwmgr.o processpptables.o \
 		smu7_clockpowergating.o \
 		vega10_processpptables.o vega10_hwmgr.o vega10_powertune.o \
 		vega10_thermal.o smu10_hwmgr.o pp_psm.o\
-		pp_overdriver.o smu_helper.o
+		pp_overdriver.o smu_helper.o pp_psm_legacy.o pp_psm_new.o
 
 AMD_PP_HWMGR = $(addprefix $(AMD_PP_PATH)/hwmgr/,$(HARDWARE_MGR))
 
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c
index d0ef8f9c1361..295ab9fed3f0 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c
@@ -21,243 +21,65 @@
  *
  */
 
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
 #include "pp_psm.h"
+#include "pp_psm_legacy.h"
+#include "pp_psm_new.h"
 
 int psm_init_power_state_table(struct pp_hwmgr *hwmgr)
 {
-	int result;
-	unsigned int i;
-	unsigned int table_entries;
-	struct pp_power_state *state;
-	int size;
-
-	if (hwmgr->hwmgr_func->get_num_of_pp_table_entries == NULL)
-		return -EINVAL;
-
-	if (hwmgr->hwmgr_func->get_power_state_size == NULL)
-		return -EINVAL;
-
-	hwmgr->num_ps = table_entries = hwmgr->hwmgr_func->get_num_of_pp_table_entries(hwmgr);
-
-	hwmgr->ps_size = size = hwmgr->hwmgr_func->get_power_state_size(hwmgr) +
-					  sizeof(struct pp_power_state);
-
-	hwmgr->ps = kzalloc(size * table_entries, GFP_KERNEL);
-	if (hwmgr->ps == NULL)
-		return -ENOMEM;
-
-	hwmgr->request_ps = kzalloc(size, GFP_KERNEL);
-	if (hwmgr->request_ps == NULL) {
-		kfree(hwmgr->ps);
-		hwmgr->ps = NULL;
-		return -ENOMEM;
-	}
-
-	hwmgr->current_ps = kzalloc(size, GFP_KERNEL);
-	if (hwmgr->current_ps == NULL) {
-		kfree(hwmgr->request_ps);
-		kfree(hwmgr->ps);
-		hwmgr->request_ps = NULL;
-		hwmgr->ps = NULL;
-		return -ENOMEM;
-	}
-
-	state = hwmgr->ps;
-
-	for (i = 0; i < table_entries; i++) {
-		result = hwmgr->hwmgr_func->get_pp_table_entry(hwmgr, i, state);
-
-		if (state->classification.flags & PP_StateClassificationFlag_Boot) {
-			hwmgr->boot_ps = state;
-			memcpy(hwmgr->current_ps, state, size);
-			memcpy(hwmgr->request_ps, state, size);
-		}
-
-		state->id = i + 1; /* assigned unique num for every power state id */
-
-		if (state->classification.flags & PP_StateClassificationFlag_Uvd)
-			hwmgr->uvd_ps = state;
-		state = (struct pp_power_state *)((unsigned long)state + size);
-	}
-
-	return 0;
+	if (hwmgr->chip_id != CHIP_VEGA12)
+		return psm_legacy_init_power_state_table(hwmgr);
+	else
+		return psm_new_init_power_state_table(hwmgr);
 }
 
 int psm_fini_power_state_table(struct pp_hwmgr *hwmgr)
 {
-	if (hwmgr == NULL)
-		return -EINVAL;
-
-	kfree(hwmgr->current_ps);
-	kfree(hwmgr->request_ps);
-	kfree(hwmgr->ps);
-	hwmgr->request_ps = NULL;
-	hwmgr->ps = NULL;
-	hwmgr->current_ps = NULL;
-	return 0;
-}
-
-static int psm_get_ui_state(struct pp_hwmgr *hwmgr,
-				enum PP_StateUILabel ui_label,
-				unsigned long *state_id)
-{
-	struct pp_power_state *state;
-	int table_entries;
-	int i;
-
-	table_entries = hwmgr->num_ps;
-	state = hwmgr->ps;
-
-	for (i = 0; i < table_entries; i++) {
-		if (state->classification.ui_label & ui_label) {
-			*state_id = state->id;
-			return 0;
-		}
-		state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
-	}
-	return -EINVAL;
-}
-
-static int psm_get_state_by_classification(struct pp_hwmgr *hwmgr,
-					enum PP_StateClassificationFlag flag,
-					unsigned long *state_id)
-{
-	struct pp_power_state *state;
-	int table_entries;
-	int i;
-
-	table_entries = hwmgr->num_ps;
-	state = hwmgr->ps;
-
-	for (i = 0; i < table_entries; i++) {
-		if (state->classification.flags & flag) {
-			*state_id = state->id;
-			return 0;
-		}
-		state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
-	}
-	return -EINVAL;
-}
-
-static int psm_set_states(struct pp_hwmgr *hwmgr, unsigned long state_id)
-{
-	struct pp_power_state *state;
-	int table_entries;
-	int i;
-
-	table_entries = hwmgr->num_ps;
-
-	state = hwmgr->ps;
-
-	for (i = 0; i < table_entries; i++) {
-		if (state->id == state_id) {
-			memcpy(hwmgr->request_ps, state, hwmgr->ps_size);
-			return 0;
-		}
-		state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
-	}
-	return -EINVAL;
+	if (hwmgr->chip_id != CHIP_VEGA12)
+		return psm_legacy_fini_power_state_table(hwmgr);
+	else
+		return psm_new_fini_power_state_table(hwmgr);
 }
 
 int psm_set_boot_states(struct pp_hwmgr *hwmgr)
 {
-	unsigned long state_id;
-	int ret = -EINVAL;
-
-	if (!psm_get_state_by_classification(hwmgr, PP_StateClassificationFlag_Boot,
-					&state_id))
-		ret = psm_set_states(hwmgr, state_id);
-
-	return ret;
+	if (hwmgr->chip_id != CHIP_VEGA12)
+		return psm_legacy_set_boot_states(hwmgr);
+	else
+		return psm_new_set_boot_states(hwmgr);
 }
 
 int psm_set_performance_states(struct pp_hwmgr *hwmgr)
 {
-	unsigned long state_id;
-	int ret = -EINVAL;
-
-	if (!psm_get_ui_state(hwmgr, PP_StateUILabel_Performance,
-					&state_id))
-		ret = psm_set_states(hwmgr, state_id);
-
-	return ret;
+	if (hwmgr->chip_id != CHIP_VEGA12)
+		return psm_legacy_set_performance_states(hwmgr);
+	else
+		return psm_new_set_performance_states(hwmgr);
 }
 
 int psm_set_user_performance_state(struct pp_hwmgr *hwmgr,
 					enum PP_StateUILabel label_id,
 					struct pp_power_state **state)
 {
-	int table_entries;
-	int i;
-
-	table_entries = hwmgr->num_ps;
-	*state = hwmgr->ps;
-
-restart_search:
-	for (i = 0; i < table_entries; i++) {
-		if ((*state)->classification.ui_label & label_id)
-			return 0;
-		*state = (struct pp_power_state *)((uintptr_t)*state + hwmgr->ps_size);
-	}
-
-	switch (label_id) {
-	case PP_StateUILabel_Battery:
-	case PP_StateUILabel_Balanced:
-		label_id = PP_StateUILabel_Performance;
-		goto restart_search;
-	default:
-		break;
-	}
-	return -EINVAL;
+	if (hwmgr->chip_id != CHIP_VEGA12)
+		return psm_legacy_set_user_performance_state(hwmgr,
+				label_id,
+				state);
+	else
+		return psm_new_set_user_performance_state(hwmgr,
+				label_id,
+				state);
 }
 
 int psm_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip,
 						struct pp_power_state *new_ps)
 {
-	struct pp_power_state *pcurrent;
-	struct pp_power_state *requested;
-	bool equal;
-	uint32_t index;
-	long workload;
-
-	if (skip)
-		return 0;
-
-	phm_display_configuration_changed(hwmgr);
-
-	if (new_ps != NULL)
-		requested = new_ps;
+	if (hwmgr->chip_id != CHIP_VEGA12)
+		return psm_legacy_adjust_power_state_dynamic(hwmgr,
+				skip,
+				new_ps);
 	else
-		requested = hwmgr->request_ps;
-
-	pcurrent = hwmgr->current_ps;
-
-	phm_apply_state_adjust_rules(hwmgr, requested, pcurrent);
-	if (pcurrent == NULL || (0 != phm_check_states_equal(hwmgr,
-			&pcurrent->hardware, &requested->hardware, &equal)))
-		equal = false;
-
-	if (!equal || phm_check_smc_update_required_for_display_configuration(hwmgr)) {
-		phm_set_power_state(hwmgr, &pcurrent->hardware, &requested->hardware);
-		memcpy(hwmgr->current_ps, hwmgr->request_ps, hwmgr->ps_size);
-	}
-
-	phm_notify_smc_display_config_after_ps_adjustment(hwmgr);
-	if (!phm_force_dpm_levels(hwmgr, hwmgr->request_dpm_level))
-		hwmgr->dpm_level = hwmgr->request_dpm_level;
-
-	if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) {
-		index = fls(hwmgr->workload_mask);
-		index = index > 0 && index <= Workload_Policy_Max ? index - 1 : 0;
-		workload = hwmgr->workload_setting[index];
-
-		if (hwmgr->power_profile_mode != workload && hwmgr->hwmgr_func->set_power_profile_mode)
-			hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, &workload, 0);
-	}
-
-	return 0;
+		return psm_new_adjust_power_state_dynamic(hwmgr,
+				skip,
+				new_ps);
 }
-
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_legacy.c b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_legacy.c
new file mode 100644
index 000000000000..e3ac52820641
--- /dev/null
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_legacy.c
@@ -0,0 +1,262 @@
+/*
+ * Copyright 2017 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 <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include "pp_psm_legacy.h"
+
+int psm_legacy_init_power_state_table(struct pp_hwmgr *hwmgr)
+{
+	int result;
+	unsigned int i;
+	unsigned int table_entries;
+	struct pp_power_state *state;
+	int size;
+
+	if (hwmgr->hwmgr_func->get_num_of_pp_table_entries == NULL)
+		return -EINVAL;
+
+	if (hwmgr->hwmgr_func->get_power_state_size == NULL)
+		return -EINVAL;
+
+	hwmgr->num_ps = table_entries = hwmgr->hwmgr_func->get_num_of_pp_table_entries(hwmgr);
+
+	hwmgr->ps_size = size = hwmgr->hwmgr_func->get_power_state_size(hwmgr) +
+					  sizeof(struct pp_power_state);
+
+	hwmgr->ps = kzalloc(size * table_entries, GFP_KERNEL);
+	if (hwmgr->ps == NULL)
+		return -ENOMEM;
+
+	hwmgr->request_ps = kzalloc(size, GFP_KERNEL);
+	if (hwmgr->request_ps == NULL) {
+		kfree(hwmgr->ps);
+		hwmgr->ps = NULL;
+		return -ENOMEM;
+	}
+
+	hwmgr->current_ps = kzalloc(size, GFP_KERNEL);
+	if (hwmgr->current_ps == NULL) {
+		kfree(hwmgr->request_ps);
+		kfree(hwmgr->ps);
+		hwmgr->request_ps = NULL;
+		hwmgr->ps = NULL;
+		return -ENOMEM;
+	}
+
+	state = hwmgr->ps;
+
+	for (i = 0; i < table_entries; i++) {
+		result = hwmgr->hwmgr_func->get_pp_table_entry(hwmgr, i, state);
+
+		if (state->classification.flags & PP_StateClassificationFlag_Boot) {
+			hwmgr->boot_ps = state;
+			memcpy(hwmgr->current_ps, state, size);
+			memcpy(hwmgr->request_ps, state, size);
+		}
+
+		state->id = i + 1; /* assigned unique num for every power state id */
+
+		if (state->classification.flags & PP_StateClassificationFlag_Uvd)
+			hwmgr->uvd_ps = state;
+		state = (struct pp_power_state *)((unsigned long)state + size);
+	}
+
+	return 0;
+}
+
+int psm_legacy_fini_power_state_table(struct pp_hwmgr *hwmgr)
+{
+	if (hwmgr == NULL)
+		return -EINVAL;
+
+	kfree(hwmgr->current_ps);
+	kfree(hwmgr->request_ps);
+	kfree(hwmgr->ps);
+	hwmgr->request_ps = NULL;
+	hwmgr->ps = NULL;
+	hwmgr->current_ps = NULL;
+	return 0;
+}
+
+static int get_ui_state(struct pp_hwmgr *hwmgr,
+				enum PP_StateUILabel ui_label,
+				unsigned long *state_id)
+{
+	struct pp_power_state *state;
+	int table_entries;
+	int i;
+
+	table_entries = hwmgr->num_ps;
+	state = hwmgr->ps;
+
+	for (i = 0; i < table_entries; i++) {
+		if (state->classification.ui_label & ui_label) {
+			*state_id = state->id;
+			return 0;
+		}
+		state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
+	}
+	return -EINVAL;
+}
+
+static int get_state_by_classification(struct pp_hwmgr *hwmgr,
+					enum PP_StateClassificationFlag flag,
+					unsigned long *state_id)
+{
+	struct pp_power_state *state;
+	int table_entries;
+	int i;
+
+	table_entries = hwmgr->num_ps;
+	state = hwmgr->ps;
+
+	for (i = 0; i < table_entries; i++) {
+		if (state->classification.flags & flag) {
+			*state_id = state->id;
+			return 0;
+		}
+		state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
+	}
+	return -EINVAL;
+}
+
+static int set_states(struct pp_hwmgr *hwmgr, unsigned long state_id)
+{
+	struct pp_power_state *state;
+	int table_entries;
+	int i;
+
+	table_entries = hwmgr->num_ps;
+
+	state = hwmgr->ps;
+
+	for (i = 0; i < table_entries; i++) {
+		if (state->id == state_id) {
+			memcpy(hwmgr->request_ps, state, hwmgr->ps_size);
+			return 0;
+		}
+		state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
+	}
+	return -EINVAL;
+}
+
+int psm_legacy_set_boot_states(struct pp_hwmgr *hwmgr)
+{
+	unsigned long state_id;
+	int ret = -EINVAL;
+
+	if (!get_state_by_classification(hwmgr, PP_StateClassificationFlag_Boot,
+					&state_id))
+		ret = set_states(hwmgr, state_id);
+
+	return ret;
+}
+
+int psm_legacy_set_performance_states(struct pp_hwmgr *hwmgr)
+{
+	unsigned long state_id;
+	int ret = -EINVAL;
+
+	if (!get_ui_state(hwmgr, PP_StateUILabel_Performance,
+					&state_id))
+		ret = set_states(hwmgr, state_id);
+
+	return ret;
+}
+
+int psm_legacy_set_user_performance_state(struct pp_hwmgr *hwmgr,
+					enum PP_StateUILabel label_id,
+					struct pp_power_state **state)
+{
+	int table_entries;
+	int i;
+
+	table_entries = hwmgr->num_ps;
+	*state = hwmgr->ps;
+
+restart_search:
+	for (i = 0; i < table_entries; i++) {
+		if ((*state)->classification.ui_label & label_id)
+			return 0;
+		*state = (struct pp_power_state *)((uintptr_t)*state + hwmgr->ps_size);
+	}
+
+	switch (label_id) {
+	case PP_StateUILabel_Battery:
+	case PP_StateUILabel_Balanced:
+		label_id = PP_StateUILabel_Performance;
+		goto restart_search;
+	default:
+		break;
+	}
+	return -EINVAL;
+}
+
+int psm_legacy_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip,
+						struct pp_power_state *new_ps)
+{
+	struct pp_power_state *pcurrent;
+	struct pp_power_state *requested;
+	bool equal;
+	uint32_t index;
+	long workload;
+
+	if (skip)
+		return 0;
+
+	phm_display_configuration_changed(hwmgr);
+
+	if (new_ps != NULL)
+		requested = new_ps;
+	else
+		requested = hwmgr->request_ps;
+
+	pcurrent = hwmgr->current_ps;
+
+	phm_apply_state_adjust_rules(hwmgr, requested, pcurrent);
+	if (pcurrent == NULL || (0 != phm_check_states_equal(hwmgr,
+			&pcurrent->hardware, &requested->hardware, &equal)))
+		equal = false;
+
+	if (!equal || phm_check_smc_update_required_for_display_configuration(hwmgr)) {
+		phm_set_power_state(hwmgr, &pcurrent->hardware, &requested->hardware);
+		memcpy(hwmgr->current_ps, hwmgr->request_ps, hwmgr->ps_size);
+	}
+
+	phm_notify_smc_display_config_after_ps_adjustment(hwmgr);
+	if (!phm_force_dpm_levels(hwmgr, hwmgr->request_dpm_level))
+		hwmgr->dpm_level = hwmgr->request_dpm_level;
+
+	if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) {
+		index = fls(hwmgr->workload_mask);
+		index = index > 0 && index <= Workload_Policy_Max ? index - 1 : 0;
+		workload = hwmgr->workload_setting[index];
+
+		if (hwmgr->power_profile_mode != workload && hwmgr->hwmgr_func->set_power_profile_mode)
+			hwmgr->hwmgr_func->set_power_profile_mode(hwmgr, &workload, 0);
+	}
+
+	return 0;
+}
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_legacy.h b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_legacy.h
new file mode 100644
index 000000000000..bc99411c1a46
--- /dev/null
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_legacy.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2017 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 PP_PSM_LEGACY_H
+#define PP_PSM_LEGACY_H
+
+#include "hwmgr.h"
+
+int psm_legacy_init_power_state_table(struct pp_hwmgr *hwmgr);
+int psm_legacy_fini_power_state_table(struct pp_hwmgr *hwmgr);
+int psm_legacy_set_boot_states(struct pp_hwmgr *hwmgr);
+int psm_legacy_set_performance_states(struct pp_hwmgr *hwmgr);
+int psm_legacy_set_user_performance_state(struct pp_hwmgr *hwmgr,
+					enum PP_StateUILabel label_id,
+					struct pp_power_state **state);
+int psm_legacy_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr,
+				bool skip,
+				struct pp_power_state *new_ps);
+
+#endif
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_new.c b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_new.c
new file mode 100644
index 000000000000..9eba8a1f2855
--- /dev/null
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_new.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2017 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 <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include "pp_psm_new.h"
+
+int psm_new_init_power_state_table(struct pp_hwmgr *hwmgr)
+{
+	hwmgr->ps_size = 0;
+	hwmgr->num_ps = 0;
+	hwmgr->ps = NULL;
+	hwmgr->request_ps = NULL;
+	hwmgr->current_ps = NULL;
+	hwmgr->boot_ps = NULL;
+	hwmgr->uvd_ps = NULL;
+
+	return 0;
+}
+
+int psm_new_fini_power_state_table(struct pp_hwmgr *hwmgr)
+{
+	return 0;
+}
+
+int psm_new_set_boot_states(struct pp_hwmgr *hwmgr)
+{
+	return 0;
+}
+
+int psm_new_set_performance_states(struct pp_hwmgr *hwmgr)
+{
+	return 0;
+}
+
+int psm_new_set_user_performance_state(struct pp_hwmgr *hwmgr,
+					enum PP_StateUILabel label_id,
+					struct pp_power_state **state)
+{
+	return 0;
+}
+
+int psm_new_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr,
+					bool skip,
+					struct pp_power_state *new_ps)
+{
+	if (skip)
+		return 0;
+
+	phm_display_configuration_changed(hwmgr);
+
+	phm_notify_smc_display_config_after_ps_adjustment(hwmgr);
+
+	return 0;
+}
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_new.h b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_new.h
new file mode 100644
index 000000000000..5c4fabcd8a15
--- /dev/null
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm_new.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2017 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 PP_PSM_NEW_H
+#define PP_PSM_NEW_H
+
+#include "hwmgr.h"
+
+int psm_new_init_power_state_table(struct pp_hwmgr *hwmgr);
+int psm_new_fini_power_state_table(struct pp_hwmgr *hwmgr);
+int psm_new_set_boot_states(struct pp_hwmgr *hwmgr);
+int psm_new_set_performance_states(struct pp_hwmgr *hwmgr);
+int psm_new_set_user_performance_state(struct pp_hwmgr *hwmgr,
+					enum PP_StateUILabel label_id,
+					struct pp_power_state **state);
+int psm_new_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr,
+				bool skip,
+				struct pp_power_state *new_ps);
+
+#endif
-- 
2.13.6



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