From: Rex Zhu <Rex.Zhu@amd.com>
Date: Mon, 25 Sep 2017 18:51:50 +0800
Subject: drm/amdgpu: delete pp_enable in adev
Git-commit: 6d07fe7bcae57ee73d87766b6cd1e026d3fee85d
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

amdgpu not care powerplay or dpm is enabled.
just check ip functions and pp functions

Reviewed-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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h           |    1 
 drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c        |   77 +++++++++++---------------
 drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c |    7 --
 drivers/gpu/drm/amd/powerplay/amd_powerplay.c |   18 +++++-
 4 files changed, 53 insertions(+), 50 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1525,7 +1525,6 @@ struct amdgpu_device {
 
 	/* powerplay */
 	struct amd_powerplay		powerplay;
-	bool				pp_enabled;
 	bool				pp_force_state_enabled;
 
 	/* dpm */
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -64,10 +64,6 @@ static const struct cg_flag_name clocks[
 
 void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev)
 {
-	if (adev->pp_enabled)
-		/* TODO */
-		return;
-
 	if (adev->pm.dpm_enabled) {
 		mutex_lock(&adev->pm.mutex);
 		if (power_supply_is_system_supplied() > 0)
@@ -118,7 +114,7 @@ static ssize_t amdgpu_set_dpm_state(stru
 		goto fail;
 	}
 
-	if (adev->pp_enabled) {
+	if (adev->powerplay.pp_funcs->dispatch_tasks) {
 		amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_ENABLE_USER_STATE, &state, NULL);
 	} else {
 		mutex_lock(&adev->pm.mutex);
@@ -303,7 +299,8 @@ static ssize_t amdgpu_set_pp_force_state
 
 	if (strlen(buf) == 1)
 		adev->pp_force_state_enabled = false;
-	else if (adev->pp_enabled) {
+	else if (adev->powerplay.pp_funcs->dispatch_tasks &&
+			adev->powerplay.pp_funcs->get_pp_num_states) {
 		struct pp_states_info data;
 
 		ret = kstrtoul(buf, 0, &idx);
@@ -531,7 +528,7 @@ static ssize_t amdgpu_set_pp_sclk_od(str
 	if (adev->powerplay.pp_funcs->set_sclk_od)
 		amdgpu_dpm_set_sclk_od(adev, (uint32_t)value);
 
-	if (adev->pp_enabled) {
+	if (adev->powerplay.pp_funcs->dispatch_tasks) {
 		amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_READJUST_POWER_STATE, NULL, NULL);
 	} else {
 		adev->pm.dpm.current_ps = adev->pm.dpm.boot_ps;
@@ -575,7 +572,7 @@ static ssize_t amdgpu_set_pp_mclk_od(str
 	if (adev->powerplay.pp_funcs->set_mclk_od)
 		amdgpu_dpm_set_mclk_od(adev, (uint32_t)value);
 
-	if (adev->pp_enabled) {
+	if (adev->powerplay.pp_funcs->dispatch_tasks) {
 		amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_READJUST_POWER_STATE, NULL, NULL);
 	} else {
 		adev->pm.dpm.current_ps = adev->pm.dpm.boot_ps;
@@ -959,9 +956,6 @@ static umode_t hwmon_attributes_visible(
 	     attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
 		return 0;
 
-	if (adev->pp_enabled)
-		return effective_mode;
-
 	/* Skip fan attributes if fan is not present */
 	if (adev->pm.no_fan &&
 	    (attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
@@ -1344,27 +1338,26 @@ int amdgpu_pm_sysfs_init(struct amdgpu_d
 		return ret;
 	}
 
-	if (adev->pp_enabled) {
-		ret = device_create_file(adev->dev, &dev_attr_pp_num_states);
-		if (ret) {
-			DRM_ERROR("failed to create device file pp_num_states\n");
-			return ret;
-		}
-		ret = device_create_file(adev->dev, &dev_attr_pp_cur_state);
-		if (ret) {
-			DRM_ERROR("failed to create device file pp_cur_state\n");
-			return ret;
-		}
-		ret = device_create_file(adev->dev, &dev_attr_pp_force_state);
-		if (ret) {
-			DRM_ERROR("failed to create device file pp_force_state\n");
-			return ret;
-		}
-		ret = device_create_file(adev->dev, &dev_attr_pp_table);
-		if (ret) {
-			DRM_ERROR("failed to create device file pp_table\n");
-			return ret;
-		}
+
+	ret = device_create_file(adev->dev, &dev_attr_pp_num_states);
+	if (ret) {
+		DRM_ERROR("failed to create device file pp_num_states\n");
+		return ret;
+	}
+	ret = device_create_file(adev->dev, &dev_attr_pp_cur_state);
+	if (ret) {
+		DRM_ERROR("failed to create device file pp_cur_state\n");
+		return ret;
+	}
+	ret = device_create_file(adev->dev, &dev_attr_pp_force_state);
+	if (ret) {
+		DRM_ERROR("failed to create device file pp_force_state\n");
+		return ret;
+	}
+	ret = device_create_file(adev->dev, &dev_attr_pp_table);
+	if (ret) {
+		DRM_ERROR("failed to create device file pp_table\n");
+		return ret;
 	}
 
 	ret = device_create_file(adev->dev, &dev_attr_pp_dpm_sclk);
@@ -1427,12 +1420,12 @@ void amdgpu_pm_sysfs_fini(struct amdgpu_
 		hwmon_device_unregister(adev->pm.int_hwmon_dev);
 	device_remove_file(adev->dev, &dev_attr_power_dpm_state);
 	device_remove_file(adev->dev, &dev_attr_power_dpm_force_performance_level);
-	if (adev->pp_enabled) {
-		device_remove_file(adev->dev, &dev_attr_pp_num_states);
-		device_remove_file(adev->dev, &dev_attr_pp_cur_state);
-		device_remove_file(adev->dev, &dev_attr_pp_force_state);
-		device_remove_file(adev->dev, &dev_attr_pp_table);
-	}
+
+	device_remove_file(adev->dev, &dev_attr_pp_num_states);
+	device_remove_file(adev->dev, &dev_attr_pp_cur_state);
+	device_remove_file(adev->dev, &dev_attr_pp_force_state);
+	device_remove_file(adev->dev, &dev_attr_pp_table);
+
 	device_remove_file(adev->dev, &dev_attr_pp_dpm_sclk);
 	device_remove_file(adev->dev, &dev_attr_pp_dpm_mclk);
 	device_remove_file(adev->dev, &dev_attr_pp_dpm_pcie);
@@ -1463,7 +1456,7 @@ void amdgpu_pm_compute_clocks(struct amd
 			amdgpu_fence_wait_empty(ring);
 	}
 
-	if (adev->pp_enabled) {
+	if (adev->powerplay.pp_funcs->dispatch_tasks) {
 		amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_DISPLAY_CONFIG_CHANGE, NULL, NULL);
 	} else {
 		mutex_lock(&adev->pm.mutex);
@@ -1598,15 +1591,15 @@ static int amdgpu_debugfs_pm_info(struct
 	if  ((adev->flags & AMD_IS_PX) &&
 	     (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) {
 		seq_printf(m, "PX asic powered off\n");
-	} else if (adev->pp_enabled) {
-		return amdgpu_debugfs_pm_info_pp(m, adev);
-	} else {
+	} else if (adev->powerplay.pp_funcs->debugfs_print_current_performance_level) {
 		mutex_lock(&adev->pm.mutex);
 		if (adev->powerplay.pp_funcs->debugfs_print_current_performance_level)
 			adev->powerplay.pp_funcs->debugfs_print_current_performance_level(adev, m);
 		else
 			seq_printf(m, "Debugfs support not implemented for this asic\n");
 		mutex_unlock(&adev->pm.mutex);
+	} else {
+		return amdgpu_debugfs_pm_info_pp(m, adev);
 	}
 
 	return 0;
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_powerplay.c
@@ -59,7 +59,6 @@ static int amdgpu_pp_early_init(void *ha
 	int ret = 0;
 
 	amd_pp = &(adev->powerplay);
-	adev->pp_enabled = false;
 	amd_pp->pp_handle = (void *)adev;
 
 	switch (adev->asic_type) {
@@ -73,7 +72,6 @@ static int amdgpu_pp_early_init(void *ha
 	case CHIP_STONEY:
 	case CHIP_VEGA10:
 	case CHIP_RAVEN:
-		adev->pp_enabled = true;
 		amd_pp->cgs_device = amdgpu_cgs_create_device(adev);
 		if (amdgpu_create_pp_handle(adev))
 			return -EINVAL;
@@ -138,9 +136,6 @@ static int amdgpu_pp_late_init(void *han
 		ret = adev->powerplay.ip_funcs->late_init(
 					adev->powerplay.pp_handle);
 
-	if (adev->pp_enabled && adev->pm.dpm_enabled)
-		amdgpu_dpm_dispatch_task(adev, AMD_PP_TASK_COMPLETE_INIT, NULL, NULL);
-
 	return ret;
 }
 
@@ -212,7 +207,7 @@ static void amdgpu_pp_late_fini(void *ha
 			  adev->powerplay.pp_handle);
 
 
-	if (adev->pp_enabled) {
+	if (adev->powerplay.cgs_device) {
 		amd_powerplay_destroy(adev->powerplay.pp_handle);
 		amdgpu_cgs_destroy_device(adev->powerplay.cgs_device);
 	}
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -30,6 +30,9 @@
 #include "pp_instance.h"
 #include "power_state.h"
 
+static int pp_dpm_dispatch_tasks(void *handle, enum amd_pp_task task_id,
+		void *input, void *output);
+
 static inline int pp_check(struct pp_instance *handle)
 {
 	if (handle == NULL || handle->pp_valid != PP_VALID)
@@ -146,6 +149,19 @@ static int pp_hw_fini(void *handle)
 	return 0;
 }
 
+static int pp_late_init(void *handle)
+{
+	struct pp_instance *pp_handle = (struct pp_instance *)handle;
+	int ret = 0;
+
+	ret = pp_check(pp_handle);
+	if (ret == 0)
+		pp_dpm_dispatch_tasks(pp_handle,
+					AMD_PP_TASK_COMPLETE_INIT, NULL, NULL);
+
+	return 0;
+}
+
 static bool pp_is_idle(void *handle)
 {
 	return false;
@@ -254,7 +270,7 @@ static int pp_resume(void *handle)
 const struct amd_ip_funcs pp_ip_funcs = {
 	.name = "powerplay",
 	.early_init = pp_early_init,
-	.late_init = NULL,
+	.late_init = pp_late_init,
 	.sw_init = pp_sw_init,
 	.sw_fini = pp_sw_fini,
 	.hw_init = pp_hw_init,