efi/gop: Convert GOP structures to typedef and clean up some types

Use typedef for the GOP structures, in anticipation of unifying
32/64-bit code. Also use more appropriate types in the non-bitness
specific structures for the framebuffer address and pointers.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: James Morse <james.morse@arm.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: https://lkml.kernel.org/r/20191224151025.32482-4-ardb@kernel.orgSigned-off-by: Ingo Molnar <mingo@kernel.org>

drivers/firmware/efi/libstub/gop.c

@@ -35,7 +35,7 @@ static void find_bits(unsigned long mask, u8 *pos, u8 *size)
 
 static void
 setup_pixel_info(struct screen_info *si, u32 pixels_per_scan_line,
-		 struct efi_pixel_bitmask pixel_info, int pixel_format)
+		 efi_pixel_bitmask_t pixel_info, int pixel_format)
 {
 	if (pixel_format == PIXEL_RGB_RESERVED_8BIT_PER_COLOR) {
 		si->lfb_depth = 32;
@@ -87,13 +87,13 @@ static efi_status_t
 setup_gop32(efi_system_table_t *sys_table_arg, struct screen_info *si,
             efi_guid_t *proto, unsigned long size, void **gop_handle)
 {
-	struct efi_graphics_output_protocol_32 *gop32, *first_gop;
+	efi_graphics_output_protocol_32_t *gop32, *first_gop;
 	unsigned long nr_gops;
 	u16 width, height;
 	u32 pixels_per_scan_line;
 	u32 ext_lfb_base;
-	u64 fb_base;
-	struct efi_pixel_bitmask pixel_info;
+	efi_physical_addr_t fb_base;
+	efi_pixel_bitmask_t pixel_info;
 	int pixel_format;
 	efi_status_t status;
 	u32 *handles = (u32 *)(unsigned long)gop_handle;
@@ -104,13 +104,13 @@ setup_gop32(efi_system_table_t *sys_table_arg, struct screen_info *si,
 
 	nr_gops = size / sizeof(u32);
 	for (i = 0; i < nr_gops; i++) {
-		struct efi_graphics_output_protocol_mode_32 *mode;
-		struct efi_graphics_output_mode_info *info = NULL;
+		efi_graphics_output_protocol_mode_32_t *mode;
+		efi_graphics_output_mode_info_t *info = NULL;
 		efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID;
 		bool conout_found = false;
 		void *dummy = NULL;
 		efi_handle_t h = (efi_handle_t)(unsigned long)handles[i];
-		u64 current_fb_base;
+		efi_physical_addr_t current_fb_base;
 
 		status = efi_call_early(handle_protocol, h,
 					proto, (void **)&gop32);
@@ -184,13 +184,13 @@ static efi_status_t
 setup_gop64(efi_system_table_t *sys_table_arg, struct screen_info *si,
 	    efi_guid_t *proto, unsigned long size, void **gop_handle)
 {
-	struct efi_graphics_output_protocol_64 *gop64, *first_gop;
+	efi_graphics_output_protocol_64_t *gop64, *first_gop;
 	unsigned long nr_gops;
 	u16 width, height;
 	u32 pixels_per_scan_line;
 	u32 ext_lfb_base;
-	u64 fb_base;
-	struct efi_pixel_bitmask pixel_info;
+	efi_physical_addr_t fb_base;
+	efi_pixel_bitmask_t pixel_info;
 	int pixel_format;
 	efi_status_t status;
 	u64 *handles = (u64 *)(unsigned long)gop_handle;
@@ -201,13 +201,13 @@ setup_gop64(efi_system_table_t *sys_table_arg, struct screen_info *si,
 
 	nr_gops = size / sizeof(u64);
 	for (i = 0; i < nr_gops; i++) {
-		struct efi_graphics_output_protocol_mode_64 *mode;
-		struct efi_graphics_output_mode_info *info = NULL;
+		efi_graphics_output_protocol_mode_64_t *mode;
+		efi_graphics_output_mode_info_t *info = NULL;
 		efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID;
 		bool conout_found = false;
 		void *dummy = NULL;
 		efi_handle_t h = (efi_handle_t)(unsigned long)handles[i];
-		u64 current_fb_base;
+		efi_physical_addr_t current_fb_base;
 
 		status = efi_call_early(handle_protocol, h,
 					proto, (void **)&gop64);

include/linux/efi.h

@@ -1415,69 +1415,69 @@ struct efi_simple_text_output_protocol {
 #define PIXEL_BLT_ONLY					3
 #define PIXEL_FORMAT_MAX				4
 
-struct efi_pixel_bitmask {
+typedef struct {
 	u32 red_mask;
 	u32 green_mask;
 	u32 blue_mask;
 	u32 reserved_mask;
-};
+} efi_pixel_bitmask_t;
 
-struct efi_graphics_output_mode_info {
+typedef struct {
 	u32 version;
 	u32 horizontal_resolution;
 	u32 vertical_resolution;
 	int pixel_format;
-	struct efi_pixel_bitmask pixel_information;
+	efi_pixel_bitmask_t pixel_information;
 	u32 pixels_per_scan_line;
-};
+} efi_graphics_output_mode_info_t;
 
-struct efi_graphics_output_protocol_mode_32 {
+typedef struct {
 	u32 max_mode;
 	u32 mode;
 	u32 info;
 	u32 size_of_info;
 	u64 frame_buffer_base;
 	u32 frame_buffer_size;
-};
+} efi_graphics_output_protocol_mode_32_t;
 
-struct efi_graphics_output_protocol_mode_64 {
+typedef struct {
 	u32 max_mode;
 	u32 mode;
 	u64 info;
 	u64 size_of_info;
 	u64 frame_buffer_base;
 	u64 frame_buffer_size;
-};
+} efi_graphics_output_protocol_mode_64_t;
 
-struct efi_graphics_output_protocol_mode {
+typedef struct {
 	u32 max_mode;
 	u32 mode;
-	unsigned long info;
+	efi_graphics_output_mode_info_t *info;
 	unsigned long size_of_info;
-	u64 frame_buffer_base;
+	efi_physical_addr_t frame_buffer_base;
 	unsigned long frame_buffer_size;
-};
+} efi_graphics_output_protocol_mode_t;
 
-struct efi_graphics_output_protocol_32 {
+typedef struct {
 	u32 query_mode;
 	u32 set_mode;
 	u32 blt;
 	u32 mode;
-};
+} efi_graphics_output_protocol_32_t;
 
-struct efi_graphics_output_protocol_64 {
+typedef struct {
 	u64 query_mode;
 	u64 set_mode;
 	u64 blt;
 	u64 mode;
-};
+} efi_graphics_output_protocol_64_t;
 
-struct efi_graphics_output_protocol {
-	unsigned long query_mode;
-	unsigned long set_mode;
-	unsigned long blt;
-	struct efi_graphics_output_protocol_mode *mode;
-};
+typedef struct {
+	void *query_mode;
+	void *set_mode;
+	void *blt;
+	efi_graphics_output_protocol_mode_t *mode;
+} efi_graphics_output_protocol_t;
 
 extern struct list_head efivar_sysfs_list;