drm/xe/guc_pc: add missing mem_access for freq_rpe_show

The mem_access is meant to cover any kind of device level memory access,
mmio included.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Anshuman Gupta <anshuman.gupta@intel.com>
Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

diff --git a/drivers/gpu/drm/xe/xe_guc_pc.c b/drivers/gpu/drm/xe/xe_guc_pc.c
index 03dfbde29fe51c21803ffae2a90569b465bee757..0927cb669603c1d3aed203275930ad306db2fec6 100644 (file)
--- a/drivers/gpu/drm/xe/xe_guc_pc.c
+++ b/drivers/gpu/drm/xe/xe_guc_pc.c
@@ -422,8 +422,12 @@ static ssize_t freq_rpe_show(struct device *dev,
                             struct device_attribute *attr, char *buf)
 {
        struct xe_guc_pc *pc = dev_to_pc(dev);
+       struct xe_gt *gt = pc_to_gt(pc);
+       struct xe_device *xe = gt_to_xe(gt);
 
+       xe_device_mem_access_get(xe);
        pc_update_rp_values(pc);
+       xe_device_mem_access_put(xe);
        return sysfs_emit(buf, "%d\n", pc->rpe_freq);
 }
 static DEVICE_ATTR_RO(freq_rpe);