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x86: Adjust the FSP types slightly

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To avoid casts, find_fsp_header() should return a pointer. Add asmlinkage
to two API functions which use that convention. UPD_TERMINATOR is common
so move it into a common file.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2015-01-27 22:13:37 -07:00
parent 1021af4ded
commit 82196cf34f
4 changed files with 9 additions and 7 deletions
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2
arch/x86/include/asm/arch-queensbay/fsp/fsp_vpd.h
View file

@ -10,8 +10,6 @@
#ifndef __VPDHEADER_H__
#define __VPDHEADER_H__
#define UPD_TERMINATOR 0x55AA
struct __packed upd_region {
u64 sign; /* Offset 0x0000 */
u64 reserved; /* Offset 0x0008 */

6
arch/x86/include/asm/fsp/fsp_api.h
View file

@ -8,6 +8,8 @@
#ifndef __FSP_API_H__
#define __FSP_API_H__
#include <linux/linkage.h>
/*
* FspInit continuation function prototype.
* Control will be returned to this callback function after FspInit API call.
@ -47,9 +49,9 @@ struct fsp_notify_params {
};
/* FspInit API function prototype */
typedef u32 (*fsp_init_f)(struct fsp_init_params *params);
typedef asmlinkage u32 (*fsp_init_f)(struct fsp_init_params *params);
/* FspNotify API function prototype */
typedef u32 (*fsp_notify_f)(struct fsp_notify_params *params);
typedef asmlinkage u32 (*fsp_notify_f)(struct fsp_notify_params *params);
#endif

4
arch/x86/include/asm/fsp/fsp_support.h
View file

@ -26,6 +26,8 @@ struct shared_data {
#define FSP_LOWMEM_BASE 0x100000UL
#define FSP_HIGHMEM_BASE 0x100000000ULL
#define UPD_TERMINATOR 0x55AA
/**
* FSP Continuation assembly helper routine
@ -61,7 +63,7 @@ void fsp_continue(struct shared_data *shared_data, u32 status,
*
* @retval: the offset of FSP header. If signature is invalid, returns 0.
*/
u32 find_fsp_header(void);
struct fsp_header *find_fsp_header(void);
/**
* FSP initialization wrapper function.

4
arch/x86/lib/fsp/fsp_support.c
View file

@ -30,7 +30,7 @@ static bool compare_guid(const struct efi_guid *guid1,
return false;
}
u32 __attribute__((optimize("O0"))) find_fsp_header(void)
struct fsp_header *__attribute__((optimize("O0"))) find_fsp_header(void)
{
/*
* This function may be called before the a stack is established,
@ -84,7 +84,7 @@ u32 __attribute__((optimize("O0"))) find_fsp_header(void)
fsp = 0;
}
return (u32)fsp;
return (struct fsp_header *)fsp;
}
void fsp_continue(struct shared_data *shared_data, u32 status, void *hob_list)