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amdgpu/pm: remove code duplication in show_power_cap calls

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v3: updated patch to apply to latest code
 v2: reorder to check pointers before calling pm_runtime_* functions

 created generic function and call with enum from
 * amdgpu_hwmon_show_power_cap_max
 * amdgpu_hwmon_show_power_cap
 * amdgpu_hwmon_show_power_cap_default

=== Test ===
AMDGPU_PCI_ADDR=`lspci -nn | grep "VGA\|Display" | cut -d " " -f 1`
AMDGPU_HWMON=`ls -la /sys/class/hwmon | grep $AMDGPU_PCI_ADDR | cut -d " " -f 10`
HWMON_DIR=/sys/class/hwmon/${AMDGPU_HWMON}

cp pp_show_power_cap.txt{,.old}
lspci -nn | grep "VGA\|Display" > pp_show_power_cap.test.log
FILES="
power1_cap
power1_cap_max
power1_cap_default "

for f in $FILES
do
  echo  $f = `cat $HWMON_DIR/$f` >> pp_show_power_cap.test.log
done

Signed-off-by: Darren Powell <darren.powell@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Darren Powell 2021-06-24 22:54:35 -04:00 committed by Alex Deucher
parent ed50995514
commit 91161b06be
1 changed files with 22 additions and 75 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

97
drivers/gpu/drm/amd/pm/amdgpu_pm.c
View File

@ -2902,14 +2902,15 @@ static ssize_t amdgpu_hwmon_show_power_cap_min(struct device *dev,
return sprintf(buf, "%i\n", 0);
}
static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
struct device_attribute *attr,
char *buf)
static ssize_t amdgpu_hwmon_show_power_cap_generic(struct device *dev,
struct device_attribute *attr,
char *buf,
enum pp_power_limit_level pp_limit_level)
{
struct amdgpu_device *adev = dev_get_drvdata(dev);
const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
enum pp_power_type power_type = to_sensor_dev_attr(attr)->index;
enum pp_power_limit_level pp_limit_level = PP_PWR_LIMIT_MAX;
uint32_t limit;
ssize_t size;
int r;
@ -2919,17 +2920,17 @@ static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
if (adev->in_suspend && !adev->in_runpm)
return -EPERM;
if ( !(pp_funcs && pp_funcs->get_power_limit))
return -ENODATA;
r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
if (r < 0) {
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
return r;
}
if (pp_funcs && pp_funcs->get_power_limit)
r = pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit,
pp_limit_level, power_type);
else
r = -ENODATA;
r = pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit,
pp_limit_level, power_type);
if (!r)
size = sysfs_emit(buf, "%u\n", limit * 1000000);
@ -2942,85 +2943,31 @@ static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
return size;
}
static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_MAX);
}
static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct amdgpu_device *adev = dev_get_drvdata(dev);
const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
enum pp_power_type power_type = to_sensor_dev_attr(attr)->index;
enum pp_power_limit_level pp_limit_level = PP_PWR_LIMIT_CURRENT;
uint32_t limit;
ssize_t size;
int r;
return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_CURRENT);
if (amdgpu_in_reset(adev))
return -EPERM;
if (adev->in_suspend && !adev->in_runpm)
return -EPERM;
r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
if (r < 0) {
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
return r;
}
if (pp_funcs && pp_funcs->get_power_limit)
r = pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit,
pp_limit_level, power_type);
else
r = -ENODATA;
if (!r)
size = sysfs_emit(buf, "%u\n", limit * 1000000);
else
size = sysfs_emit(buf, "\n");
pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
return size;
}
static ssize_t amdgpu_hwmon_show_power_cap_default(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct amdgpu_device *adev = dev_get_drvdata(dev);
const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
enum pp_power_type power_type = to_sensor_dev_attr(attr)->index;
enum pp_power_limit_level pp_limit_level = PP_PWR_LIMIT_DEFAULT;
uint32_t limit;
ssize_t size;
int r;
return amdgpu_hwmon_show_power_cap_generic(dev, attr, buf, PP_PWR_LIMIT_DEFAULT);
if (amdgpu_in_reset(adev))
return -EPERM;
if (adev->in_suspend && !adev->in_runpm)
return -EPERM;
r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
if (r < 0) {
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
return r;
}
if (pp_funcs && pp_funcs->get_power_limit)
r = pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit,
pp_limit_level, power_type);
else
r = -ENODATA;
if (!r)
size = sysfs_emit(buf, "%u\n", limit * 1000000);
else
size = sysfs_emit(buf, "\n");
pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
return size;
}
static ssize_t amdgpu_hwmon_show_power_label(struct device *dev,
struct device_attribute *attr,
char *buf)