drm/xe/reg_sr: Use a single parameter for xe_reg_sr_apply_whitelist()

All other parameters can be extracted from a single struct xe_hw_engine
reference. This removes redundancy and simplifies the code.
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20230609143815.302540-2-gustavo.sousa@intel.comSigned-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_gt.c

@@ -491,8 +491,7 @@ static int do_gt_restart(struct xe_gt *gt)
 
 	for_each_hw_engine(hwe, gt, id) {
 		xe_reg_sr_apply_mmio(&hwe->reg_sr, gt);
-		xe_reg_sr_apply_whitelist(&hwe->reg_whitelist,
-					  hwe->mmio_base, gt);
+		xe_reg_sr_apply_whitelist(hwe);
 	}
 
 	return 0;

drivers/gpu/drm/xe/xe_hw_engine.c

@@ -381,7 +381,7 @@ static int hw_engine_init(struct xe_gt *gt, struct xe_hw_engine *hwe,
 	XE_BUG_ON(!(gt->info.engine_mask & BIT(id)));
 
 	xe_reg_sr_apply_mmio(&hwe->reg_sr, gt);
-	xe_reg_sr_apply_whitelist(&hwe->reg_whitelist, hwe->mmio_base, gt);
+	xe_reg_sr_apply_whitelist(hwe);
 
 	hwe->hwsp = xe_bo_create_pin_map(xe, tile, NULL, SZ_4K, ttm_bo_type_kernel,
 					 XE_BO_CREATE_VRAM_IF_DGFX(tile) |

drivers/gpu/drm/xe/xe_reg_sr.c

@@ -20,6 +20,7 @@
 #include "xe_gt.h"
 #include "xe_gt_mcr.h"
 #include "xe_gt_printk.h"
+#include "xe_hw_engine_types.h"
 #include "xe_macros.h"
 #include "xe_mmio.h"
 #include "xe_reg_whitelist.h"
@@ -211,12 +212,14 @@ void xe_reg_sr_apply_mmio(struct xe_reg_sr *sr, struct xe_gt *gt)
 	drm_err(&xe->drm, "Failed to apply, err=%d\n", err);
 }
 
-void xe_reg_sr_apply_whitelist(struct xe_reg_sr *sr, u32 mmio_base,
-			       struct xe_gt *gt)
+void xe_reg_sr_apply_whitelist(struct xe_hw_engine *hwe)
 {
+	struct xe_reg_sr *sr = &hwe->reg_whitelist;
+	struct xe_gt *gt = hwe->gt;
 	struct xe_device *xe = gt_to_xe(gt);
 	struct xe_reg_sr_entry *entry;
 	struct drm_printer p;
+	u32 mmio_base = hwe->mmio_base;
 	unsigned long reg;
 	unsigned int slot = 0;
 	int err;

drivers/gpu/drm/xe/xe_reg_sr.h

@@ -14,6 +14,7 @@
 
 struct xe_device;
 struct xe_gt;
+struct xe_hw_engine;
 struct drm_printer;
 
 int xe_reg_sr_init(struct xe_reg_sr *sr, const char *name, struct xe_device *xe);
@@ -22,7 +23,6 @@ void xe_reg_sr_dump(struct xe_reg_sr *sr, struct drm_printer *p);
 int xe_reg_sr_add(struct xe_reg_sr *sr, const struct xe_reg_sr_entry *e,
 		  struct xe_gt *gt);
 void xe_reg_sr_apply_mmio(struct xe_reg_sr *sr, struct xe_gt *gt);
-void xe_reg_sr_apply_whitelist(struct xe_reg_sr *sr, u32 mmio_base,
-			       struct xe_gt *gt);
+void xe_reg_sr_apply_whitelist(struct xe_hw_engine *hwe);
 
 #endif