drm/amd/pp: Add new asic support in pp_psm.c

In new asics(vega12), no power state management in driver,
So no need to implement related callback functions.
and add some ps checks in pp_psm.c

Revert "drm/amd/powerplay: add new pp_psm infrastructure for vega12 (v2)"
This reverts commit 7d1a63f3aa331b853e41f92d0e7890ed31de8c13.

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

1 files changed, 237 insertions, 33 deletions

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c
index 295ab9fed3f0..0f2851b5b368 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c
@@ -21,65 +21,269 @@
  *
  */
 
+#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)
 {
-	if (hwmgr->chip_id != CHIP_VEGA12)
-		return psm_legacy_init_power_state_table(hwmgr);
-	else
-		return psm_new_init_power_state_table(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 0;
+
+	if (hwmgr->hwmgr_func->get_power_state_size == NULL)
+		return 0;
+
+	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);
+
+	if (table_entries == 0 || size == 0) {
+		pr_warn("Please check whether power state management is suppported on this asic\n");
+		return 0;
+	}
+
+	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_fini_power_state_table(struct pp_hwmgr *hwmgr)
 {
-	if (hwmgr->chip_id != CHIP_VEGA12)
-		return psm_legacy_fini_power_state_table(hwmgr);
-	else
-		return psm_new_fini_power_state_table(hwmgr);
+	if (hwmgr == NULL)
+		return -EINVAL;
+
+	if (!hwmgr->ps)
+		return 0;
+
+	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;
 }
 
 int psm_set_boot_states(struct pp_hwmgr *hwmgr)
 {
-	if (hwmgr->chip_id != CHIP_VEGA12)
-		return psm_legacy_set_boot_states(hwmgr);
-	else
-		return psm_new_set_boot_states(hwmgr);
+	unsigned long state_id;
+	int ret = -EINVAL;
+
+	if (!hwmgr->ps)
+		return 0;
+
+	if (!psm_get_state_by_classification(hwmgr, PP_StateClassificationFlag_Boot,
+					&state_id))
+		ret = psm_set_states(hwmgr, state_id);
+
+	return ret;
 }
 
 int psm_set_performance_states(struct pp_hwmgr *hwmgr)
 {
-	if (hwmgr->chip_id != CHIP_VEGA12)
-		return psm_legacy_set_performance_states(hwmgr);
-	else
-		return psm_new_set_performance_states(hwmgr);
+	unsigned long state_id;
+	int ret = -EINVAL;
+
+	if (!hwmgr->ps)
+		return 0;
+
+	if (!psm_get_ui_state(hwmgr, PP_StateUILabel_Performance,
+					&state_id))
+		ret = psm_set_states(hwmgr, state_id);
+
+	return ret;
 }
 
 int psm_set_user_performance_state(struct pp_hwmgr *hwmgr,
 					enum PP_StateUILabel label_id,
 					struct pp_power_state **state)
 {
-	if (hwmgr->chip_id != CHIP_VEGA12)
-		return psm_legacy_set_user_performance_state(hwmgr,
-				label_id,
-				state);
+	int table_entries;
+	int i;
+
+	if (!hwmgr->ps)
+		return 0;
+
+	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;
+}
+
+static void power_state_management(struct pp_hwmgr *hwmgr,
+						struct pp_power_state *new_ps)
+{
+	struct pp_power_state *pcurrent;
+	struct pp_power_state *requested;
+	bool equal;
+
+	if (new_ps != NULL)
+		requested = new_ps;
 	else
-		return psm_new_set_user_performance_state(hwmgr,
-				label_id,
-				state);
+		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);
+	}
 }
 
 int psm_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip,
 						struct pp_power_state *new_ps)
 {
-	if (hwmgr->chip_id != CHIP_VEGA12)
-		return psm_legacy_adjust_power_state_dynamic(hwmgr,
-				skip,
-				new_ps);
-	else
-		return psm_new_adjust_power_state_dynamic(hwmgr,
-				skip,
-				new_ps);
+	uint32_t index;
+	long workload;
+
+	if (skip)
+		return 0;
+
+	phm_display_configuration_changed(hwmgr);
+
+	if (hwmgr->ps)
+		power_state_management(hwmgr, new_ps);
+
+	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;
 }
+