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dc1e35c6 SS |
1 | #ifndef __ASM_X86_XSAVE_H |
2 | #define __ASM_X86_XSAVE_H | |
3 | ||
6152e4b1 | 4 | #include <linux/types.h> |
dc1e35c6 | 5 | #include <asm/processor.h> |
59a36d16 | 6 | #include <linux/uaccess.h> |
dc1e35c6 | 7 | |
56c103ec | 8 | /* Bit 63 of XCR0 is reserved for future expansion */ |
d91cab78 | 9 | #define XFEATURE_MASK_EXTEND (~(XFEATURE_MASK_FPSSE | (1ULL << 63))) |
dc1e35c6 | 10 | |
677b98bd IM |
11 | #define XSTATE_CPUID 0x0000000d |
12 | ||
dc1e35c6 SS |
13 | #define FXSAVE_SIZE 512 |
14 | ||
2d5b5a66 SY |
15 | #define XSAVE_HDR_SIZE 64 |
16 | #define XSAVE_HDR_OFFSET FXSAVE_SIZE | |
17 | ||
18 | #define XSAVE_YMM_SIZE 256 | |
19 | #define XSAVE_YMM_OFFSET (XSAVE_HDR_SIZE + XSAVE_HDR_OFFSET) | |
5ee481da | 20 | |
1499ce2d YY |
21 | /* Supervisor features */ |
22 | #define XFEATURE_MASK_SUPERVISOR (XFEATURE_MASK_PT) | |
23 | ||
2f7fada2 AL |
24 | /* All currently supported features */ |
25 | #define XCNTXT_MASK (XFEATURE_MASK_FP | \ | |
a65050c6 | 26 | XFEATURE_MASK_SSE | \ |
d91cab78 | 27 | XFEATURE_MASK_YMM | \ |
394db20c | 28 | XFEATURE_MASK_OPMASK | \ |
d91cab78 | 29 | XFEATURE_MASK_ZMM_Hi256 | \ |
c8df4009 | 30 | XFEATURE_MASK_Hi16_ZMM | \ |
2f7fada2 AL |
31 | XFEATURE_MASK_PKRU | \ |
32 | XFEATURE_MASK_BNDREGS | \ | |
33 | XFEATURE_MASK_BNDCSR) | |
dc1e35c6 | 34 | |
b359e8a4 SS |
35 | #ifdef CONFIG_X86_64 |
36 | #define REX_PREFIX "0x48, " | |
37 | #else | |
38 | #define REX_PREFIX | |
39 | #endif | |
40 | ||
614df7fb | 41 | extern u64 xfeatures_mask; |
5b3efd50 | 42 | extern u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS]; |
dc1e35c6 | 43 | |
404f6aac KC |
44 | extern void __init update_regset_xstate_info(unsigned int size, |
45 | u64 xstate_mask); | |
b359e8a4 | 46 | |
0a265375 | 47 | void fpu__xstate_clear_all_cpu_caps(void); |
c47ada30 | 48 | void *get_xsave_addr(struct xregs_state *xsave, int xstate); |
04cd027b | 49 | const void *get_xsave_field_ptr(int xstate_field); |
99aa22d0 | 50 | int using_compacted_format(void); |
d7eda6c9 IM |
51 | int copy_xstate_to_kernel(void *kbuf, struct xregs_state *xsave, unsigned int pos, unsigned int count); |
52 | int copy_xstate_to_user(void __user *ubuf, struct xregs_state *xsave, unsigned int pos, unsigned int count); | |
656f0831 | 53 | int copy_user_to_xstate(const void *kbuf, const void __user *ubuf, |
91c3dba7 | 54 | struct xregs_state *xsave); |
dc1e35c6 | 55 | #endif |