| Andres Salomon | fd699c7 | 2010-06-18 17:46:53 -0400 | [diff] [blame] | 1 | #ifndef _ASM_X86_OLPC_OFW_H |
| 2 | #define _ASM_X86_OLPC_OFW_H |
| 3 | |
| 4 | /* index into the page table containing the entry OFW occupies */ |
| 5 | #define OLPC_OFW_PDE_NR 1022 |
| 6 | |
| 7 | #define OLPC_OFW_SIG 0x2057464F /* aka "OFW " */ |
| 8 | |
| 9 | #ifdef CONFIG_OLPC_OPENFIRMWARE |
| 10 | |
| 11 | /* run an OFW command by calling into the firmware */ |
| 12 | #define olpc_ofw(name, args, res) \ |
| 13 | __olpc_ofw((name), ARRAY_SIZE(args), args, ARRAY_SIZE(res), res) |
| 14 | |
| Andres Salomon | 54e5bc02 | 2010-06-28 22:00:29 -0400 | [diff] [blame] | 15 | extern int __olpc_ofw(const char *name, int nr_args, const void **args, int nr_res, |
| Andres Salomon | fd699c7 | 2010-06-18 17:46:53 -0400 | [diff] [blame] | 16 | void **res); |
| 17 | |
| 18 | /* determine whether OFW is available and lives in the proper memory */ |
| 19 | extern void olpc_ofw_detect(void); |
| 20 | |
| 21 | /* install OFW's pde permanently into the kernel's pgtable */ |
| 22 | extern void setup_olpc_ofw_pgd(void); |
| 23 | |
| 24 | #else /* !CONFIG_OLPC_OPENFIRMWARE */ |
| 25 | |
| 26 | static inline void olpc_ofw_detect(void) { } |
| 27 | static inline void setup_olpc_ofw_pgd(void) { } |
| 28 | |
| 29 | #endif /* !CONFIG_OLPC_OPENFIRMWARE */ |
| 30 | |
| 31 | #endif /* _ASM_X86_OLPC_OFW_H */ |