[PATCH 14/33] efi/gop: Add prototypes for query_mode and set_mode

[Ard Biesheuvel]

From: Arvind Sankar <nivedita@xxxxxxxxxxxx>

Add prototypes and argmap for the Graphics Output Protocol's QueryMode
and SetMode functions.

Signed-off-by: Arvind Sankar <nivedita@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20200320020028.1936003-11-nivedita@xxxxxxxxxxxx
Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
---
 arch/x86/include/asm/efi.h             | 4 ++++
 drivers/firmware/efi/libstub/efistub.h | 6 ++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 8391c115c0ec..f59cba117dcb 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -307,6 +307,10 @@ static inline u32 efi64_convert_status(efi_status_t status)
 #define __efi64_argmap_load_file(protocol, path, policy, bufsize, buf)	\
 	((protocol), (path), (policy), efi64_zero_upper(bufsize), (buf))
 
+/* Graphics Output Protocol */
+#define __efi64_argmap_query_mode(gop, mode, size, info)		\
+	((gop), (mode), efi64_zero_upper(size), efi64_zero_upper(info))
+
 /*
  * The macros below handle the plumbing for the argument mapping. To add a
  * mapping for a specific EFI method, simply define a macro
diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h
index d9ad8582dbea..321244ed20a4 100644
--- a/drivers/firmware/efi/libstub/efistub.h
+++ b/drivers/firmware/efi/libstub/efistub.h
@@ -314,8 +314,10 @@ typedef union efi_graphics_output_protocol efi_graphics_output_protocol_t;
 
 union efi_graphics_output_protocol {
 	struct {
-		void *query_mode;
-		void *set_mode;
+		efi_status_t (__efiapi *query_mode)(efi_graphics_output_protocol_t *,
+						    u32, unsigned long *,
+						    efi_graphics_output_mode_info_t **);
+		efi_status_t (__efiapi *set_mode)  (efi_graphics_output_protocol_t *, u32);
 		void *blt;
 		efi_graphics_output_protocol_mode_t *mode;
 	};
-- 
2.17.1