diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-01 14:59:11 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-01 14:59:11 -0700 |
commit | 2b12a4c524812fb3f6ee590a02e65b95c8c32229 (patch) | |
tree | 6d319a371c56798d2d5c3ad21801eba142a1c77e /arch/ia64/include/asm/fpswa.h | |
parent | 4744b43431e8613f920c5cba88346756f53c5165 (diff) | |
parent | 7f30491ccd28627742e37899453ae20e3da8e18f (diff) |
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Move include/asm-ia64 to arch/ia64/include/asm
Diffstat (limited to 'arch/ia64/include/asm/fpswa.h')
-rw-r--r-- | arch/ia64/include/asm/fpswa.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/fpswa.h b/arch/ia64/include/asm/fpswa.h new file mode 100644 index 000000000000..62edfceadaa6 --- /dev/null +++ b/arch/ia64/include/asm/fpswa.h @@ -0,0 +1,73 @@ +#ifndef _ASM_IA64_FPSWA_H +#define _ASM_IA64_FPSWA_H + +/* + * Floating-point Software Assist + * + * Copyright (C) 1999 Intel Corporation. + * Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com> + * Copyright (C) 1999 Goutham Rao <goutham.rao@intel.com> + */ + +typedef struct { + /* 4 * 128 bits */ + unsigned long fp_lp[4*2]; +} fp_state_low_preserved_t; + +typedef struct { + /* 10 * 128 bits */ + unsigned long fp_lv[10 * 2]; +} fp_state_low_volatile_t; + +typedef struct { + /* 16 * 128 bits */ + unsigned long fp_hp[16 * 2]; +} fp_state_high_preserved_t; + +typedef struct { + /* 96 * 128 bits */ + unsigned long fp_hv[96 * 2]; +} fp_state_high_volatile_t; + +/** + * floating point state to be passed to the FP emulation library by + * the trap/fault handler + */ +typedef struct { + unsigned long bitmask_low64; + unsigned long bitmask_high64; + fp_state_low_preserved_t *fp_state_low_preserved; + fp_state_low_volatile_t *fp_state_low_volatile; + fp_state_high_preserved_t *fp_state_high_preserved; + fp_state_high_volatile_t *fp_state_high_volatile; +} fp_state_t; + +typedef struct { + unsigned long status; + unsigned long err0; + unsigned long err1; + unsigned long err2; +} fpswa_ret_t; + +/** + * function header for the Floating Point software assist + * library. This function is invoked by the Floating point software + * assist trap/fault handler. + */ +typedef fpswa_ret_t (*efi_fpswa_t) (unsigned long trap_type, void *bundle, unsigned long *ipsr, + unsigned long *fsr, unsigned long *isr, unsigned long *preds, + unsigned long *ifs, fp_state_t *fp_state); + +/** + * This is the FPSWA library interface as defined by EFI. We need to pass a + * pointer to the interface itself on a call to the assist library + */ +typedef struct { + unsigned int revision; + unsigned int reserved; + efi_fpswa_t fpswa; +} fpswa_interface_t; + +extern fpswa_interface_t *fpswa_interface; + +#endif /* _ASM_IA64_FPSWA_H */ |