projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| e7d820a5 | 24 | /* Supported features which support lazy state saving */ |
| d91cab78 | 25 | #define XFEATURE_MASK_LAZY (XFEATURE_MASK_FP | \ |
| a65050c6 | 26 | XFEATURE_MASK_SSE | \ |
| d91cab78 | 27 | XFEATURE_MASK_YMM | \ |
| 394db20c | 28 | XFEATURE_MASK_OPMASK | \ |
| d91cab78 | 29 | XFEATURE_MASK_ZMM_Hi256 | \ |
| 6a667db2 | 30 | XFEATURE_MASK_Hi16_ZMM) |
| e7d820a5 | 31 | |
| a65050c6 | 32 | /* Supported features which require eager state saving */ |
| 6a667db2 DH |
33 | #define XFEATURE_MASK_EAGER (XFEATURE_MASK_BNDREGS | \ |
| 34 | XFEATURE_MASK_BNDCSR | \ | |
| 35 | XFEATURE_MASK_PKRU) | |
| a65050c6 | 36 | |
| e7d820a5 | 37 | /* All currently supported features */ |
| d91cab78 | 38 | #define XCNTXT_MASK (XFEATURE_MASK_LAZY | XFEATURE_MASK_EAGER) |
| dc1e35c6 | 39 | |
| b359e8a4 SS |
40 | #ifdef CONFIG_X86_64 |
| 41 | #define REX_PREFIX "0x48, " | |
| 42 | #else | |
| 43 | #define REX_PREFIX | |
| 44 | #endif | |
| 45 | ||
| 614df7fb | 46 | extern u64 xfeatures_mask; |
| 5b3efd50 | 47 | extern u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS]; |
| dc1e35c6 | 48 | |
| 5b3efd50 | 49 | extern void update_regset_xstate_info(unsigned int size, u64 xstate_mask); |
| b359e8a4 | 50 | |
| 0a265375 | 51 | void fpu__xstate_clear_all_cpu_caps(void); |
| c47ada30 | 52 | void *get_xsave_addr(struct xregs_state *xsave, int xstate); |
| 04cd027b | 53 | const void *get_xsave_field_ptr(int xstate_field); |
| 99aa22d0 | 54 | int using_compacted_format(void); |
| 91c3dba7 YY |
55 | int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf, |
| 56 | void __user *ubuf, struct xregs_state *xsave); | |
| 57 | int copyin_to_xsaves(const void *kbuf, const void __user *ubuf, | |
| 58 | struct xregs_state *xsave); | |
| dc1e35c6 | 59 | #endif |