Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/xe/tests/mocs: Hold XE_FORCEWAKE_ALL for LNCF regs
LNCF registers report wrong values when XE_FORCEWAKE_GT
only is held. Holding XE_FORCEWAKE_ALL ensures correct
operations on LNCF regs.
V2(Himal):
- Use xe_force_wake_ref_has_domain
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/1999
Fixes: a6a4ea6d7d37 ("drm/xe: Add mocs kunit")
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250428082357.1730068-1-tejas.upadhyay@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
+5
-2
+5
-2
drivers/gpu/drm/xe/tests/xe_mocs.c
+5
-2
drivers/gpu/drm/xe/tests/xe_mocs.c
···
46
46
unsigned int fw_ref, i;
47
47
u32 reg_val;
48
48
49
-
fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
50
-
KUNIT_ASSERT_NE_MSG(test, fw_ref, 0, "Forcewake Failed.\n");
49
+
fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL);
50
+
if (!xe_force_wake_ref_has_domain(fw_ref, XE_FORCEWAKE_ALL)) {
51
+
xe_force_wake_put(gt_to_fw(gt), fw_ref);
52
+
KUNIT_ASSERT_TRUE_MSG(test, true, "Forcewake Failed.\n");
53
+
}
51
54
52
55
for (i = 0; i < info->num_mocs_regs; i++) {
53
56
if (!(i & 1)) {