Change-Id: Ie54af5a8056dba16aa9849190441377c5958b385
Signed-off-by: Rex Zhu <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 27 ++++++++++++++++++++++++++
drivers/gpu/drm/amd/include/kgd_pp_interface.h | 8 ++++++++
2 files changed, 35 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index 01a996c..c2bf384 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -247,6 +247,23 @@ static ssize_t amdgpu_get_pp_num_states(struct device *dev,
return buf_len;
}
+static ssize_t amdgpu_get_voltage_control_type(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_device *ddev = dev_get_drvdata(dev);
+ struct amdgpu_device *adev = ddev->dev_private;
+ enum PP_VOLTAGE_CONTROL_TYPE data = PP_INVALID_VOLTAGE_TYPE;
+ int buf_len;
+
+ if (adev->powerplay.pp_funcs->get_pp_voltage_control_type)
+ adev->powerplay.pp_funcs->get_pp_voltage_control_type(adev,
&data);
+
+ buf_len = snprintf(buf, PAGE_SIZE, "%d\n", data);
+
+ return buf_len;
+}
+
static ssize_t amdgpu_get_pp_cur_state(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -772,6 +789,7 @@ static DEVICE_ATTR(pp_gfx_power_profile, S_IRUGO | S_IWUSR,
static DEVICE_ATTR(pp_compute_power_profile, S_IRUGO | S_IWUSR,
amdgpu_get_pp_compute_power_profile,
amdgpu_set_pp_compute_power_profile);
+static DEVICE_ATTR(pp_get_voltage_control_type, S_IRUGO,
amdgpu_get_voltage_control_type, NULL);
static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
struct device_attribute *attr,
@@ -1404,6 +1422,13 @@ int amdgpu_pm_sysfs_init(struct amdgpu_device *adev)
"pp_compute_power_profile\n");
return ret;
}
+ ret = device_create_file(adev->dev,
+ &dev_attr_pp_get_voltage_control_type);
+ if (ret) {
+ DRM_ERROR("failed to create device file "
+ "pp_get_voltage_control_type\n");
+ return ret;
+ }
ret = amdgpu_debugfs_pm_init(adev);
if (ret) {
@@ -1440,6 +1465,8 @@ void amdgpu_pm_sysfs_fini(struct amdgpu_device *adev)
&dev_attr_pp_gfx_power_profile);
device_remove_file(adev->dev,
&dev_attr_pp_compute_power_profile);
+ device_remove_file(adev->dev,
+ &dev_attr_pp_get_voltage_control_type);
}
void amdgpu_pm_compute_clocks(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
index ed27626..251ccb4 100644
--- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
@@ -197,6 +197,13 @@ struct pp_gpu_power {
((group) << PP_GROUP_SHIFT | (block) << PP_BLOCK_SHIFT | \
(support) << PP_STATE_SUPPORT_SHIFT | (state) << PP_STATE_SHIFT)
+enum PP_VOLTAGE_CONTROL_TYPE {
+ PP_EXTENDED_VOLTAGE,
+ PP_EXTENDED_VARIABLE_VOLTAGE,
+ PP_ADAPTIVE_VOLGATE_FREQUENCY_SCALING,
+ PP_INVALID_VOLTAGE_TYPE = 0xFF,
+};
+
struct seq_file;
enum amd_pp_clock_type;
struct amd_pp_simple_clock_info;
@@ -289,6 +296,7 @@ struct amd_pm_funcs {
struct pp_display_clock_request *clock);
int (*get_display_mode_validation_clocks)(void *handle,
struct amd_pp_simple_clock_info *clocks);
+ int (*get_pp_voltage_control_type)(void *handle, enum
PP_VOLTAGE_CONTROL_TYPE *type);
};
#endif
--
1.9.1
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