drm/xe/pf: Prefer guard(mutex) when doing fair LMEM provisioning

We will add more code there and with guard() it will easier to
avoid mistakes in unlocking.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Link: https://patch.msgid.link/20260218205553.3561-9-michal.wajdeczko@intel.com

diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
index 72cd46554230fbe125b9a5fe46ab3a33148e3c9d..d2a2201440b806be7264b80f63effe4e219bdc27 100644 (file)
--- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_config.c
@@ -1945,10 +1945,9 @@ int xe_gt_sriov_pf_config_set_fair_lmem(struct xe_gt *gt, unsigned int vfid,
        if (!xe_device_has_lmtt(gt_to_xe(gt)))
                return 0;
 
-       mutex_lock(xe_gt_sriov_pf_master_mutex(gt));
-       fair = pf_estimate_fair_lmem(gt, num_vfs);
-       mutex_unlock(xe_gt_sriov_pf_master_mutex(gt));
+       guard(mutex)(xe_gt_sriov_pf_master_mutex(gt));
 
+       fair = pf_estimate_fair_lmem(gt, num_vfs);
        if (!fair)
                return -ENOSPC;
 
@@ -1958,7 +1957,7 @@ int xe_gt_sriov_pf_config_set_fair_lmem(struct xe_gt *gt, unsigned int vfid,
                xe_gt_sriov_info(gt, "Using non-profile provisioning (%s %llu vs %llu)\n",
                                 "VRAM", fair, profile);
 
-       return xe_gt_sriov_pf_config_bulk_set_lmem(gt, vfid, num_vfs, fair);
+       return xe_gt_sriov_pf_config_bulk_set_lmem_locked(gt, vfid, num_vfs, fair);
 }
 
 /**