drm/xe: Encapsulate all the module parameters

Encapsulate all the module parameters in one single global struct
variable. This also removes the extra xe_module.h from includes.

v2: naming consistency as suggested by Jani and Lucas
v3: fix checkpatch errors/warnings
v4: adding blank line after struct declaration

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Bommithi Sakeena <bommithi.sakeena@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_device.c

@@ -223,7 +223,7 @@ struct xe_device *xe_device_create(struct pci_dev *pdev,
 
 	xe->info.devid = pdev->device;
 	xe->info.revid = pdev->revision;
-	xe->info.force_execlist = force_execlist;
+	xe->info.force_execlist = xe_modparam.force_execlist;
 
 	spin_lock_init(&xe->irq.lock);
 

drivers/gpu/drm/xe/xe_display.c

@@ -45,7 +45,7 @@ static bool has_display(struct xe_device *xe)
  */
 bool xe_display_driver_probe_defer(struct pci_dev *pdev)
 {
-	if (!enable_display)
+	if (!xe_modparam.enable_display)
 		return 0;
 
 	return intel_display_driver_probe_defer(pdev);
@@ -69,7 +69,7 @@ static void xe_display_last_close(struct drm_device *dev)
  */
 void xe_display_driver_set_hooks(struct drm_driver *driver)
 {
-	if (!enable_display)
+	if (!xe_modparam.enable_display)
 		return;
 
 	driver->driver_features |= DRIVER_MODESET | DRIVER_ATOMIC;

drivers/gpu/drm/xe/xe_guc_log.c

@@ -100,7 +100,7 @@ int xe_guc_log_init(struct xe_guc_log *log)
 
 	xe_map_memset(xe, &bo->vmap, 0, 0, guc_log_size());
 	log->bo = bo;
-	log->level = xe_guc_log_level;
+	log->level = xe_modparam.guc_log_level;
 
 	err = drmm_add_action_or_reset(&xe->drm, guc_log_fini, log);
 	if (err)

drivers/gpu/drm/xe/xe_mmio.c

@@ -73,7 +73,7 @@ _resize_bar(struct xe_device *xe, int resno, resource_size_t size)
  */
 static void xe_resize_vram_bar(struct xe_device *xe)
 {
-	u64 force_vram_bar_size = xe_force_vram_bar_size;
+	u64 force_vram_bar_size = xe_modparam.force_vram_bar_size;
 	struct pci_dev *pdev = to_pci_dev(xe->drm.dev);
 	struct pci_bus *root = pdev->bus;
 	resource_size_t current_size;

drivers/gpu/drm/xe/xe_module.c

@@ -10,39 +10,38 @@
 
 #include "xe_drv.h"
 #include "xe_hw_fence.h"
-#include "xe_module.h"
 #include "xe_pci.h"
 #include "xe_pmu.h"
 #include "xe_sched_job.h"
 
-bool force_execlist = false;
-module_param_named_unsafe(force_execlist, force_execlist, bool, 0444);
+struct xe_modparam xe_modparam = {
+	.enable_display = true,
+	.guc_log_level = 5,
+	.force_probe = CONFIG_DRM_XE_FORCE_PROBE,
+	/* the rest are 0 by default */
+};
+
+module_param_named_unsafe(force_execlist, xe_modparam.force_execlist, bool, 0444);
 MODULE_PARM_DESC(force_execlist, "Force Execlist submission");
 
-bool enable_display = true;
-module_param_named(enable_display, enable_display, bool, 0444);
+module_param_named(enable_display, xe_modparam.enable_display, bool, 0444);
 MODULE_PARM_DESC(enable_display, "Enable display");
 
-u32 xe_force_vram_bar_size;
-module_param_named(vram_bar_size, xe_force_vram_bar_size, uint, 0600);
+module_param_named(vram_bar_size, xe_modparam.force_vram_bar_size, uint, 0600);
 MODULE_PARM_DESC(vram_bar_size, "Set the vram bar size(in MiB)");
 
-int xe_guc_log_level = 5;
-module_param_named(guc_log_level, xe_guc_log_level, int, 0600);
+module_param_named(guc_log_level, xe_modparam.guc_log_level, int, 0600);
 MODULE_PARM_DESC(guc_log_level, "GuC firmware logging level (0=disable, 1..5=enable with verbosity min..max)");
 
-char *xe_guc_firmware_path;
-module_param_named_unsafe(guc_firmware_path, xe_guc_firmware_path, charp, 0400);
+module_param_named_unsafe(guc_firmware_path, xe_modparam.guc_firmware_path, charp, 0400);
 MODULE_PARM_DESC(guc_firmware_path,
 		 "GuC firmware path to use instead of the default one");
 
-char *xe_huc_firmware_path;
-module_param_named_unsafe(huc_firmware_path, xe_huc_firmware_path, charp, 0400);
+module_param_named_unsafe(huc_firmware_path, xe_modparam.huc_firmware_path, charp, 0400);
 MODULE_PARM_DESC(huc_firmware_path,
 		 "HuC firmware path to use instead of the default one - empty string disables");
 
-char *xe_param_force_probe = CONFIG_DRM_XE_FORCE_PROBE;
-module_param_named_unsafe(force_probe, xe_param_force_probe, charp, 0400);
+module_param_named_unsafe(force_probe, xe_modparam.force_probe, charp, 0400);
 MODULE_PARM_DESC(force_probe,
 		 "Force probe options for specified devices. See CONFIG_DRM_XE_FORCE_PROBE for details.");
 

drivers/gpu/drm/xe/xe_module.h

@@ -3,13 +3,23 @@
  * Copyright © 2023 Intel Corporation
  */
 
+#ifndef _XE_MODULE_H_
+#define _XE_MODULE_H_
+
 #include <linux/types.h>
 
 /* Module modprobe variables */
-extern bool force_execlist;
-extern bool enable_display;
-extern u32 xe_force_vram_bar_size;
-extern int xe_guc_log_level;
-extern char *xe_guc_firmware_path;
-extern char *xe_huc_firmware_path;
-extern char *xe_param_force_probe;
+struct xe_modparam {
+	bool force_execlist;
+	bool enable_display;
+	u32 force_vram_bar_size;
+	int guc_log_level;
+	char *guc_firmware_path;
+	char *huc_firmware_path;
+	char *force_probe;
+};
+
+extern struct xe_modparam xe_modparam;
+
+#endif
+

drivers/gpu/drm/xe/xe_pci.c

@@ -419,12 +419,12 @@ static bool device_id_in_list(u16 device_id, const char *devices, bool negative)
 
 static bool id_forced(u16 device_id)
 {
-	return device_id_in_list(device_id, xe_param_force_probe, false);
+	return device_id_in_list(device_id, xe_modparam.force_probe, false);
 }
 
 static bool id_blocked(u16 device_id)
 {
-	return device_id_in_list(device_id, xe_param_force_probe, true);
+	return device_id_in_list(device_id, xe_modparam.force_probe, true);
 }
 
 static const struct xe_subplatform_desc *
@@ -593,7 +593,7 @@ static int xe_info_init(struct xe_device *xe,
 	xe->info.has_range_tlb_invalidation = graphics_desc->has_range_tlb_invalidation;
 
 	xe->info.enable_display = IS_ENABLED(CONFIG_DRM_XE_DISPLAY) &&
-				  enable_display &&
+				  xe_modparam.enable_display &&
 				  desc->has_display;
 	/*
 	 * All platforms have at least one primary GT.  Any platform with media

drivers/gpu/drm/xe/xe_uc_fw.c

@@ -220,11 +220,11 @@ uc_fw_override(struct xe_uc_fw *uc_fw)
 	/* empty string disables, but it's not allowed for GuC */
 	switch (uc_fw->type) {
 	case XE_UC_FW_TYPE_GUC:
-		if (xe_guc_firmware_path && *xe_guc_firmware_path)
-			path_override = xe_guc_firmware_path;
+		if (xe_modparam.guc_firmware_path && *xe_modparam.guc_firmware_path)
+			path_override = xe_modparam.guc_firmware_path;
 		break;
 	case XE_UC_FW_TYPE_HUC:
-		path_override = xe_huc_firmware_path;
+		path_override = xe_modparam.huc_firmware_path;
 		break;
 	default:
 		break;