diff options
Diffstat (limited to 'pc-bios/optionrom/optionrom.h')
| -rw-r--r-- | pc-bios/optionrom/optionrom.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/pc-bios/optionrom/optionrom.h b/pc-bios/optionrom/optionrom.h index ce436085d9..f1a9021ec1 100644 --- a/pc-bios/optionrom/optionrom.h +++ b/pc-bios/optionrom/optionrom.h @@ -51,8 +51,6 @@ .endm #define read_fw_blob_pre(var) \ - read_fw var ## _ADDR; \ - mov %eax, %edi; \ read_fw var ## _SIZE; \ mov %eax, %ecx; \ mov $var ## _DATA, %ax; \ @@ -68,6 +66,8 @@ * Clobbers: %eax, %edx, %es, %ecx, %edi */ #define read_fw_blob(var) \ + read_fw var ## _ADDR; \ + mov %eax, %edi; \ read_fw_blob_pre(var); \ /* old as(1) doesn't like this insn so emit the bytes instead: \ rep insb (%dx), %es:(%edi); \ @@ -80,7 +80,22 @@ * * Clobbers: %eax, %edx, %es, %ecx, %edi */ -#define read_fw_blob_addr32(var) \ +#define read_fw_blob_addr32(var) \ + read_fw var ## _ADDR; \ + mov %eax, %edi; \ + read_fw_blob_pre(var); \ + /* old as(1) doesn't like this insn so emit the bytes instead: \ + addr32 rep insb (%dx), %es:(%edi); \ + */ \ + .dc.b 0x67,0xf3,0x6c + +/* + * Read a blob from the fw_cfg device in forced addr32 mode, address is in %edi. + * Requires _SIZE and _DATA values for the parameter. + * + * Clobbers: %eax, %edx, %edi, %es, %ecx + */ +#define read_fw_blob_addr32_edi(var) \ read_fw_blob_pre(var); \ /* old as(1) doesn't like this insn so emit the bytes instead: \ addr32 rep insb (%dx), %es:(%edi); \ |