Revert "drm/xe/tests/mocs: Update xe_force_wake_get() return handling"

This reverts commit 95a75ed.

The reverted commit updated the handling of xe_force_wake_get to match
the new "return refcounted domain mask" semantics introduced in commit
a7ddcea ("drm/xe: Error handling in xe_force_wake_get()"). However,
that API change only exists in 6.13 and later.

In 6.12 stable kernel, xe_force_wake_get still returns a status code.
The update incorrectly treats the return value as a mask, causing the
return value of 0 to be misinterpreted as an error.

Cc: Rodrigo Vivi <[email protected]>
Cc: Lucas De Marchi <[email protected]>
Cc: Himal Prasad Ghimiray <[email protected]>
Cc: Nirmoy Das <[email protected]>
Cc: Badal Nilawar <[email protected]>
Acked-by: Rodrigo Vivi <[email protected]>
Signed-off-by: Tomita Moeko <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: tomitamoeko

drivers/gpu/drm/xe/tests/xe_mocs.c

@@ -43,14 +43,12 @@ static void read_l3cc_table(struct xe_gt *gt,
 {
 	struct kunit *test = kunit_get_current_test();
 	u32 l3cc, l3cc_expected;
-	unsigned int fw_ref, i;
+	unsigned int i;
 	u32 reg_val;
+	u32 ret;
 
-	fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
-	if (!xe_force_wake_ref_has_domain(fw_ref, XE_FORCEWAKE_ALL)) {
-		xe_force_wake_put(gt_to_fw(gt), fw_ref);
-		KUNIT_ASSERT_TRUE_MSG(test, true, "Forcewake Failed.\n");
-	}
+	ret = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
+	KUNIT_ASSERT_EQ_MSG(test, ret, 0, "Forcewake Failed.\n");
 
 	for (i = 0; i < info->num_mocs_regs; i++) {
 		if (!(i & 1)) {
@@ -74,22 +72,23 @@ static void read_l3cc_table(struct xe_gt *gt,
 		KUNIT_EXPECT_EQ_MSG(test, l3cc_expected, l3cc,
 				    "l3cc idx=%u has incorrect val.\n", i);
 	}
-	xe_force_wake_put(gt_to_fw(gt), fw_ref);
+	xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL);
 }
 
 static void read_mocs_table(struct xe_gt *gt,
 			    const struct xe_mocs_info *info)
 {
 	struct kunit *test = kunit_get_current_test();
 	u32 mocs, mocs_expected;
-	unsigned int fw_ref, i;
+	unsigned int i;
 	u32 reg_val;
+	u32 ret;
 
 	KUNIT_EXPECT_TRUE_MSG(test, info->unused_entries_index,
 			      "Unused entries index should have been defined\n");
 
-	fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
-	KUNIT_ASSERT_NE_MSG(test, fw_ref, 0, "Forcewake Failed.\n");
+	ret = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
+	KUNIT_ASSERT_EQ_MSG(test, ret, 0, "Forcewake Failed.\n");
 
 	for (i = 0; i < info->num_mocs_regs; i++) {
 		if (regs_are_mcr(gt))
@@ -107,7 +106,7 @@ static void read_mocs_table(struct xe_gt *gt,
 				    "mocs reg 0x%x has incorrect val.\n", i);
 	}
 
-	xe_force_wake_put(gt_to_fw(gt), fw_ref);
+	xe_force_wake_put(gt_to_fw(gt), XE_FW_GT);
 }
 
 static int mocs_kernel_test_run_device(struct xe_device *xe)