diff options
| author | Badal Nilawar <badal.nilawar@intel.com> | 2025-10-15 12:46:11 +0300 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2025-10-16 22:04:55 +0300 |
| commit | 95af8155746cbbc9e97ceb16a4977c095da1eb40 (patch) | |
| tree | 33fde686dc51688e8af8bcb5acbc87250cac6832 | |
| parent | 409b9499099b4ad14ca60b59c6edfebfaf74f907 (diff) | |
| download | linux-95af8155746cbbc9e97ceb16a4977c095da1eb40.tar.xz | |
drm/xe: Prevent runtime PM wake while reading rp0 frequency
The rp0 frequency is a fused value that is read once during probe
and then cached, so there’s no need to trigger a runtime wake
when accessing rp0.
Signed-off-by: Badal Nilawar <badal.nilawar@intel.com>
Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Reviewed-by: Karthik Poosa <karthik.poosa@intel.com>
Link: https://lore.kernel.org/r/20251015094611.1468939-1-badal.nilawar@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_freq.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_freq.c b/drivers/gpu/drm/xe/xe_gt_freq.c index 4ff1b6b58d6b..701349251bbc 100644 --- a/drivers/gpu/drm/xe/xe_gt_freq.c +++ b/drivers/gpu/drm/xe/xe_gt_freq.c @@ -99,13 +99,8 @@ static ssize_t rp0_freq_show(struct kobject *kobj, { struct device *dev = kobj_to_dev(kobj); struct xe_guc_pc *pc = dev_to_pc(dev); - u32 freq; - xe_pm_runtime_get(dev_to_xe(dev)); - freq = xe_guc_pc_get_rp0_freq(pc); - xe_pm_runtime_put(dev_to_xe(dev)); - - return sysfs_emit(buf, "%d\n", freq); + return sysfs_emit(buf, "%d\n", xe_guc_pc_get_rp0_freq(pc)); } static struct kobj_attribute attr_rp0_freq = __ATTR_RO(rp0_freq); |