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authorRex Zhu <Rex.Zhu@amd.com>2018-01-10 18:42:36 +0800
committerAlex Deucher <alexander.deucher@amd.com>2018-02-19 14:17:52 -0500
commit37c5c4dbf03b167b5ca68d4bbc7fb6c92a463fb4 (patch)
treef6f3e9bc026333a533d078b9dbc508fdbee84468 /drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
parente8ea1b9aa0f34b32764582bd4214d70ecb1b53eb (diff)
download96b-common-37c5c4dbf03b167b5ca68d4bbc7fb6c92a463fb4.tar.gz
drm/amdgpu: add custom power policy support in sysfs
when cat pp_power_profile_mode on Vega10 NUM MODE_NAME BUSY_SET_POINT FPS USE_RLC_BUSY MIN_ACTIVE_LEVEL 0 3D_FULL_SCREEN : 70 60 1 3 1 POWER_SAVING : 90 60 0 0 2 VIDEO*: 70 60 0 0 3 VR : 70 90 0 0 4 COMPUTER : 30 60 0 6 5 CUSTOM : 0 0 0 0 the result show all the profile mode we can support and custom mode. user can echo the num(0-4) to pp_power_profile_mode to select the profile mode or can echo "5 value value value value" to enter CUSTOM mode. the four parameter is set_point/FPS/USER_RLC_BUSY/MIN_ACTIVE_LEVEL. 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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c81
1 files changed, 80 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index e5ee7cf0e9d8..662edca5722d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -584,6 +584,73 @@ fail:
return count;
}
+static ssize_t amdgpu_get_pp_power_profile_mode(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_device *ddev = dev_get_drvdata(dev);
+ struct amdgpu_device *adev = ddev->dev_private;
+
+ if (adev->powerplay.pp_funcs->get_power_profile_mode)
+ return amdgpu_dpm_get_power_profile_mode(adev, buf);
+
+ return snprintf(buf, PAGE_SIZE, "\n");
+}
+
+
+static ssize_t amdgpu_set_pp_power_profile_mode(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ int ret = 0xff;
+ struct drm_device *ddev = dev_get_drvdata(dev);
+ struct amdgpu_device *adev = ddev->dev_private;
+ uint32_t parameter_size = 0;
+ long parameter[64];
+ char *sub_str, buf_cpy[128];
+ char *tmp_str;
+ uint32_t i = 0;
+ char tmp[2];
+ long int profile_mode = 0;
+ const char delimiter[3] = {' ', '\n', '\0'};
+
+ tmp[0] = *(buf);
+ tmp[1] = '\0';
+ ret = kstrtol(tmp, 0, &profile_mode);
+ if (ret)
+ goto fail;
+
+ if (profile_mode == PP_SMC_POWER_PROFILE_CUSTOM) {
+ if (count < 2 || count > 127)
+ return -EINVAL;
+ while (isspace(*++buf))
+ i++;
+ memcpy(buf_cpy, buf, count-i);
+ tmp_str = buf_cpy;
+ while (tmp_str[0]) {
+ sub_str = strsep(&tmp_str, delimiter);
+ ret = kstrtol(sub_str, 0, &parameter[parameter_size]);
+ if (ret) {
+ count = -EINVAL;
+ goto fail;
+ }
+ pr_info("value is %ld \n", parameter[parameter_size]);
+ parameter_size++;
+ while (isspace(*tmp_str))
+ tmp_str++;
+ }
+ }
+ parameter[parameter_size] = profile_mode;
+ if (adev->powerplay.pp_funcs->set_power_profile_mode)
+ ret = amdgpu_dpm_set_power_profile_mode(adev, parameter, parameter_size);
+
+ if (!ret)
+ return count;
+fail:
+ return -EINVAL;
+}
+
static ssize_t amdgpu_get_pp_power_profile(struct device *dev,
char *buf, struct amd_pp_profile *query)
{
@@ -772,7 +839,9 @@ 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_power_profile_mode, S_IRUGO | S_IWUSR,
+ amdgpu_get_pp_power_profile_mode,
+ amdgpu_set_pp_power_profile_mode);
static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -1405,6 +1474,14 @@ int amdgpu_pm_sysfs_init(struct amdgpu_device *adev)
return ret;
}
+ ret = device_create_file(adev->dev,
+ &dev_attr_pp_power_profile_mode);
+ if (ret) {
+ DRM_ERROR("failed to create device file "
+ "pp_power_profile_mode\n");
+ return ret;
+ }
+
ret = amdgpu_debugfs_pm_init(adev);
if (ret) {
DRM_ERROR("Failed to register debugfs file for dpm!\n");
@@ -1440,6 +1517,8 @@ 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_power_profile_mode);
}
void amdgpu_pm_compute_clocks(struct amdgpu_device *adev)