drm/{i915,xe}/panic: rename struct {i915,xe}_panic_data to struct intel_panic

Prepare for better shared interfaces between panic implementations. The
struct intel_panic remains an opaque data type, with unique
implementations in i915 and xe.

This allows us to change the panic data pointer from void * to struct
intel_panic *, helping type safety.

Cc: Jocelyn Falempe <jfalempe@redhat.com>
Cc: Maarten Lankhorst <dev@lankhorst.se>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/884ffc80c8b5fef1b92956e644a4e559560cc2ba.1756835342.git.jani.nikula@intel.com

Author: jnikula

drivers/gpu/drm/i915/display/intel_display_types.h

@@ -60,6 +60,7 @@ struct intel_ddi_buf_trans;
 struct intel_fbc;
 struct intel_global_objs_state;
 struct intel_hdcp_shim;
+struct intel_panic;
 struct intel_tc_port;
 
 /*
@@ -149,7 +150,7 @@ struct intel_framebuffer {
 	unsigned int vtd_guard;
 
 	unsigned int (*panic_tiling)(unsigned int x, unsigned int y, unsigned int width);
-	void *panic;
+	struct intel_panic *panic;
 };
 
 enum intel_hotplug_state {

drivers/gpu/drm/i915/gem/i915_gem_pages.c

@@ -357,18 +357,18 @@ static void *i915_gem_object_map_pfn(struct drm_i915_gem_object *obj,
 	return vaddr ?: ERR_PTR(-ENOMEM);
 }
 
-struct i915_panic_data {
+struct intel_panic {
 	struct page **pages;
 	int page;
 	void *vaddr;
 };
 
 struct i915_framebuffer {
 	struct intel_framebuffer base;
-	struct i915_panic_data panic;
+	struct intel_panic panic;
 };
 
-static void i915_panic_kunmap(struct i915_panic_data *panic)
+static void i915_panic_kunmap(struct intel_panic *panic)
 {
 	if (panic->vaddr) {
 		drm_clflush_virt_range(panic->vaddr, PAGE_SIZE);
@@ -415,7 +415,7 @@ static void i915_gem_object_panic_page_set_pixel(struct drm_scanout_buffer *sb,
 	unsigned int new_page;
 	unsigned int offset;
 	struct intel_framebuffer *fb = (struct intel_framebuffer *)sb->private;
-	struct i915_panic_data *panic = fb->panic;
+	struct intel_panic *panic = fb->panic;
 
 	if (fb->panic_tiling)
 		offset = fb->panic_tiling(sb->width, x, y);
@@ -458,7 +458,7 @@ int i915_gem_object_panic_setup(struct drm_scanout_buffer *sb)
 {
 	enum i915_map_type has_type;
 	struct intel_framebuffer *fb = (struct intel_framebuffer *)sb->private;
-	struct i915_panic_data *panic = fb->panic;
+	struct intel_panic *panic = fb->panic;
 	struct drm_i915_gem_object *obj = to_intel_bo(intel_fb_bo(&fb->base));
 	void *ptr;
 
@@ -486,7 +486,7 @@ int i915_gem_object_panic_setup(struct drm_scanout_buffer *sb)
 
 void i915_gem_object_panic_finish(struct intel_framebuffer *fb)
 {
-	struct i915_panic_data *panic = fb->panic;
+	struct intel_panic *panic = fb->panic;
 
 	i915_panic_kunmap(panic);
 	panic->page = -1;

drivers/gpu/drm/xe/display/xe_panic.c

@@ -9,18 +9,18 @@
 #include "intel_panic.h"
 #include "xe_bo.h"
 
-struct xe_panic_data {
+struct intel_panic {
 	struct page **pages;
 	int page;
 	void *vaddr;
 };
 
 struct xe_framebuffer {
 	struct intel_framebuffer base;
-	struct xe_panic_data panic;
+	struct intel_panic panic;
 };
 
-static void xe_panic_kunmap(struct xe_panic_data *panic)
+static void xe_panic_kunmap(struct intel_panic *panic)
 {
 	if (panic->vaddr) {
 		drm_clflush_virt_range(panic->vaddr, PAGE_SIZE);
@@ -38,7 +38,7 @@ static void xe_panic_page_set_pixel(struct drm_scanout_buffer *sb, unsigned int
 				    unsigned int y, u32 color)
 {
 	struct intel_framebuffer *fb = (struct intel_framebuffer *)sb->private;
-	struct xe_panic_data *panic = fb->panic;
+	struct intel_panic *panic = fb->panic;
 	struct xe_bo *bo = gem_to_xe_bo(intel_fb_bo(&fb->base));
 	unsigned int new_page;
 	unsigned int offset;
@@ -78,7 +78,7 @@ struct intel_framebuffer *intel_bo_alloc_framebuffer(void)
 int intel_panic_setup(struct drm_scanout_buffer *sb)
 {
 	struct intel_framebuffer *fb = (struct intel_framebuffer *)sb->private;
-	struct xe_panic_data *panic = fb->panic;
+	struct intel_panic *panic = fb->panic;
 
 	panic->page = -1;
 	sb->set_pixel = xe_panic_page_set_pixel;
@@ -87,7 +87,7 @@ int intel_panic_setup(struct drm_scanout_buffer *sb)
 
 void intel_panic_finish(struct intel_framebuffer *fb)
 {
-	struct xe_panic_data *panic = fb->panic;
+	struct intel_panic *panic = fb->panic;
 
 	xe_panic_kunmap(panic);
 	panic->page = -1;