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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2007-02-05 21:18:37 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2007-02-05 21:18:37 +0100 |
| commit | ab14de6c37fae22911ba99f4171613e6d758050b (patch) | |
| tree | 7545169fe9d64a82616ae37f2b6c1a420c77f30f /include/asm-s390 | |
| parent | [S390] Calibrate delay and bogomips. (diff) | |
| download | linux-ab14de6c37fae22911ba99f4171613e6d758050b.tar.xz linux-ab14de6c37fae22911ba99f4171613e6d758050b.zip | |
[S390] Convert memory detection into C code.
Hopefully this will make it more maintainable and less error prone.
Code makes use of search_exception_tables(). Since it calls this
function before the kernel exeception table is sorted, there is an
early call to sort_main_extable().
This way it's easy to use the already present infrastructure of fixup
sections. Also this would allows to easily convert the rest of
head[31|64].S into C code.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/asm-s390')
| -rw-r--r-- | include/asm-s390/processor.h | 12 | ||||
| -rw-r--r-- | include/asm-s390/reset.h | 3 | ||||
| -rw-r--r-- | include/asm-s390/sclp.h | 39 |
3 files changed, 51 insertions, 3 deletions
diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h index cf71c5449240..4c1b73940351 100644 --- a/include/asm-s390/processor.h +++ b/include/asm-s390/processor.h @@ -331,6 +331,18 @@ static inline void disabled_wait(unsigned long code) } /* + * Basic Machine Check/Program Check Handler. + */ + +extern void s390_base_mcck_handler(void); +extern void s390_base_pgm_handler(void); +extern void s390_base_ext_handler(void); + +extern void (*s390_base_mcck_handler_fn)(void); +extern void (*s390_base_pgm_handler_fn)(void); +extern void (*s390_base_ext_handler_fn)(void); + +/* * CPU idle notifier chain. */ #define CPU_IDLE 0 diff --git a/include/asm-s390/reset.h b/include/asm-s390/reset.h index 532e65a2aafc..f584f4a52581 100644 --- a/include/asm-s390/reset.h +++ b/include/asm-s390/reset.h @@ -18,7 +18,4 @@ struct reset_call { extern void register_reset_call(struct reset_call *reset); extern void unregister_reset_call(struct reset_call *reset); extern void s390_reset_system(void); -extern void (*s390_reset_mcck_handler)(void); -extern void (*s390_reset_pgm_handler)(void); - #endif /* _ASM_S390_RESET_H */ diff --git a/include/asm-s390/sclp.h b/include/asm-s390/sclp.h new file mode 100644 index 000000000000..468b97018405 --- /dev/null +++ b/include/asm-s390/sclp.h @@ -0,0 +1,39 @@ +/* + * include/asm-s390/sclp.h + * + * Copyright IBM Corp. 2007 + * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com> + */ + +#ifndef _ASM_S390_SCLP_H +#define _ASM_S390_SCLP_H + +#include <linux/types.h> + +struct sccb_header { + u16 length; + u8 function_code; + u8 control_mask[3]; + u16 response_code; +} __attribute__((packed)); + +#define LOADPARM_LEN 8 + +struct sclp_readinfo_sccb { + struct sccb_header header; /* 0-7 */ + u16 rnmax; /* 8-9 */ + u8 rnsize; /* 10 */ + u8 _reserved0[24 - 11]; /* 11-23 */ + u8 loadparm[LOADPARM_LEN]; /* 24-31 */ + u8 _reserved1[91 - 32]; /* 32-90 */ + u8 flags; /* 91 */ + u8 _reserved2[100 - 92]; /* 92-99 */ + u32 rnsize2; /* 100-103 */ + u64 rnmax2; /* 104-111 */ + u8 _reserved3[4096 - 112]; /* 112-4095 */ +} __attribute__((packed, aligned(4096))); + +extern struct sclp_readinfo_sccb s390_readinfo_sccb; +extern void sclp_readinfo_early(void); + +#endif /* _ASM_S390_SCLP_H */ |