diff options
author | Ingo Molnar <[email protected]> | 2008-08-14 12:19:59 +0200 |
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committer | Ingo Molnar <[email protected]> | 2008-08-14 12:19:59 +0200 |
commit | 8d7ccaa545490cdffdfaff0842436a8dd85cf47b (patch) | |
tree | 8129b5907161bc6ae26deb3645ce1e280c5e1f51 /arch/ia64/include/asm/fpswa.h | |
parent | b2139aa0eec330c711c5a279db361e5ef1178e78 (diff) | |
parent | 30a2f3c60a84092c8084dfe788b710f8d0768cd4 (diff) |
Merge commit 'v2.6.27-rc3' into x86/prototypes
Conflicts:
include/asm-x86/dma-mapping.h
Signed-off-by: Ingo Molnar <[email protected]>
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 <[email protected]> + * Copyright (C) 1999 Goutham Rao <[email protected]> + */ + +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 */ |