From: Xin Wang <x.wang@intel.com>
Date: Wed, 27 Aug 2025 00:06:32 +0000 (-0700)
Subject: drm/xe: make xe_gt_idle_disable_c6() handle the forcewake internally
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=1313351e71181a4818afeb8dfe202e4162091ef6;p=users%2Fhch%2Fmisc.git

drm/xe: make xe_gt_idle_disable_c6() handle the forcewake internally

Move forcewake_get() into xe_gt_idle_enable_c6() to streamline the
code and make it easier to use.

Suggested-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Xin Wang <x.wang@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/20250827000633.1369890-2-x.wang@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---

diff --git a/drivers/gpu/drm/xe/xe_gt_idle.c b/drivers/gpu/drm/xe/xe_gt_idle.c
index ffb210216aa9..f8950a52d0a4 100644
--- a/drivers/gpu/drm/xe/xe_gt_idle.c
+++ b/drivers/gpu/drm/xe/xe_gt_idle.c
@@ -322,15 +322,11 @@ static void gt_idle_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 	struct xe_gt *gt = kobj_to_gt(kobj->parent);
-	unsigned int fw_ref;
 
 	xe_gt_idle_disable_pg(gt);
 
-	if (gt_to_xe(gt)->info.skip_guc_pc) {
-		fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
+	if (gt_to_xe(gt)->info.skip_guc_pc)
 		xe_gt_idle_disable_c6(gt);
-		xe_force_wake_put(gt_to_fw(gt), fw_ref);
-	}
 
 	sysfs_remove_files(kobj, gt_idle_attrs);
 	kobject_put(kobj);
@@ -390,14 +386,23 @@ void xe_gt_idle_enable_c6(struct xe_gt *gt)
 			RC_CTL_HW_ENABLE | RC_CTL_TO_MODE | RC_CTL_RC6_ENABLE);
 }
 
-void xe_gt_idle_disable_c6(struct xe_gt *gt)
+int xe_gt_idle_disable_c6(struct xe_gt *gt)
 {
+	unsigned int fw_ref;
+
 	xe_device_assert_mem_access(gt_to_xe(gt));
-	xe_force_wake_assert_held(gt_to_fw(gt), XE_FW_GT);
 
 	if (IS_SRIOV_VF(gt_to_xe(gt)))
-		return;
+		return 0;
+
+	fw_ref = xe_force_wake_get(gt_to_fw(gt), XE_FW_GT);
+	if (!fw_ref)
+		return -ETIMEDOUT;
 
 	xe_mmio_write32(&gt->mmio, RC_CONTROL, 0);
 	xe_mmio_write32(&gt->mmio, RC_STATE, 0);
+
+	xe_force_wake_put(gt_to_fw(gt), fw_ref);
+
+	return 0;
 }
diff --git a/drivers/gpu/drm/xe/xe_gt_idle.h b/drivers/gpu/drm/xe/xe_gt_idle.h
index 591a01e181bc..9c34a155e102 100644
--- a/drivers/gpu/drm/xe/xe_gt_idle.h
+++ b/drivers/gpu/drm/xe/xe_gt_idle.h
@@ -13,7 +13,7 @@ struct xe_gt;
 
 int xe_gt_idle_init(struct xe_gt_idle *gtidle);
 void xe_gt_idle_enable_c6(struct xe_gt *gt);
-void xe_gt_idle_disable_c6(struct xe_gt *gt);
+int xe_gt_idle_disable_c6(struct xe_gt *gt);
 void xe_gt_idle_enable_pg(struct xe_gt *gt);
 void xe_gt_idle_disable_pg(struct xe_gt *gt);
 int xe_gt_idle_pg_print(struct xe_gt *gt, struct drm_printer *p);
diff --git a/drivers/gpu/drm/xe/xe_guc_pc.c b/drivers/gpu/drm/xe/xe_guc_pc.c
index 0f8430acd16d..88557e86d637 100644
--- a/drivers/gpu/drm/xe/xe_guc_pc.c
+++ b/drivers/gpu/drm/xe/xe_guc_pc.c
@@ -1076,7 +1076,6 @@ int xe_guc_pc_gucrc_disable(struct xe_guc_pc *pc)
 {
 	struct xe_device *xe = pc_to_xe(pc);
 	struct xe_gt *gt = pc_to_gt(pc);
-	unsigned int fw_ref;
 	int ret = 0;
 
 	if (xe->info.skip_guc_pc)
@@ -1086,17 +1085,7 @@ int xe_guc_pc_gucrc_disable(struct xe_guc_pc *pc)
 	if (ret)
 		return 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);
-		return -ETIMEDOUT;
-	}
-
-	xe_gt_idle_disable_c6(gt);
-
-	xe_force_wake_put(gt_to_fw(gt), fw_ref);
-
-	return 0;
+	return xe_gt_idle_disable_c6(gt);
 }
 
 /**