[PATCH v9 17/26] drm/xe/huc: Update handling of xe_force_wake_get return

Himal Prasad Ghimiray himal.prasad.ghimiray at intel.com
Mon Oct 14 07:55:52 UTC 2024


xe_force_wake_get() now returns the reference count-incremented domain
mask. If it fails for individual domains, the return value will always
be 0. However, for XE_FORCEWAKE_ALL, it may return a non-zero value even
in the event of failure. Update the return handling of xe_force_wake_get()
to reflect this behavior, and ensure that the return value is passed as
input to xe_force_wake_put().

v3
- return xe_wakeref_t instead of int in xe_force_wake_get()

v5
- return unsigned int from xe_force_wake_get()

v7
- Fix commit message

Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Cc: Lucas De Marchi <lucas.demarchi at intel.com>
Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray at intel.com>
---
 drivers/gpu/drm/xe/xe_huc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_huc.c b/drivers/gpu/drm/xe/xe_huc.c
index 77c5830309cf..6a846e4cb221 100644
--- a/drivers/gpu/drm/xe/xe_huc.c
+++ b/drivers/gpu/drm/xe/xe_huc.c
@@ -296,19 +296,19 @@ void xe_huc_sanitize(struct xe_huc *huc)
 void xe_huc_print_info(struct xe_huc *huc, struct drm_printer *p)
 {
 	struct xe_gt *gt = huc_to_gt(huc);
-	int err;
+	unsigned int fw_ref;
 
 	xe_uc_fw_print(&huc->fw, p);
 
 	if (!xe_uc_fw_is_enabled(&huc->fw))
 		return;
 
-	err = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
-	if (err)
+	fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
+	if (!fw_ref)
 		return;
 
 	drm_printf(p, "\nHuC status: 0x%08x\n",
 		   xe_mmio_read32(&gt->mmio, HUC_KERNEL_LOAD_INFO));
 
-	xe_force_wake_put(gt_to_fw(gt), XE_FW_GT);
+	xe_force_wake_put(gt_to_fw(gt), fw_ref);
 }
-- 
2.34.1



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