diff options
Diffstat (limited to 'arch/x86/include/asm/processor.h')
-rw-r--r-- | arch/x86/include/asm/processor.h | 132 |
1 files changed, 1 insertions, 131 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 28df85561730..6b75c4b927ec 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -21,6 +21,7 @@ struct mm_struct; #include <asm/desc_defs.h> #include <asm/nops.h> #include <asm/special_insns.h> +#include <asm/fpu/types.h> #include <linux/personality.h> #include <linux/cpumask.h> @@ -313,137 +314,6 @@ struct orig_ist { unsigned long ist[7]; }; -#define MXCSR_DEFAULT 0x1f80 - -struct i387_fsave_struct { - u32 cwd; /* FPU Control Word */ - u32 swd; /* FPU Status Word */ - u32 twd; /* FPU Tag Word */ - u32 fip; /* FPU IP Offset */ - u32 fcs; /* FPU IP Selector */ - u32 foo; /* FPU Operand Pointer Offset */ - u32 fos; /* FPU Operand Pointer Selector */ - - /* 8*10 bytes for each FP-reg = 80 bytes: */ - u32 st_space[20]; - - /* Software status information [not touched by FSAVE ]: */ - u32 status; -}; - -struct i387_fxsave_struct { - u16 cwd; /* Control Word */ - u16 swd; /* Status Word */ - u16 twd; /* Tag Word */ - u16 fop; /* Last Instruction Opcode */ - union { - struct { - u64 rip; /* Instruction Pointer */ - u64 rdp; /* Data Pointer */ - }; - struct { - u32 fip; /* FPU IP Offset */ - u32 fcs; /* FPU IP Selector */ - u32 foo; /* FPU Operand Offset */ - u32 fos; /* FPU Operand Selector */ - }; - }; - u32 mxcsr; /* MXCSR Register State */ - u32 mxcsr_mask; /* MXCSR Mask */ - - /* 8*16 bytes for each FP-reg = 128 bytes: */ - u32 st_space[32]; - - /* 16*16 bytes for each XMM-reg = 256 bytes: */ - u32 xmm_space[64]; - - u32 padding[12]; - - union { - u32 padding1[12]; - u32 sw_reserved[12]; - }; - -} __attribute__((aligned(16))); - -struct i387_soft_struct { - u32 cwd; - u32 swd; - u32 twd; - u32 fip; - u32 fcs; - u32 foo; - u32 fos; - /* 8*10 bytes for each FP-reg = 80 bytes: */ - u32 st_space[20]; - u8 ftop; - u8 changed; - u8 lookahead; - u8 no_update; - u8 rm; - u8 alimit; - struct math_emu_info *info; - u32 entry_eip; -}; - -struct ymmh_struct { - /* 16 * 16 bytes for each YMMH-reg = 256 bytes */ - u32 ymmh_space[64]; -}; - -/* We don't support LWP yet: */ -struct lwp_struct { - u8 reserved[128]; -}; - -struct bndreg { - u64 lower_bound; - u64 upper_bound; -} __packed; - -struct bndcsr { - u64 bndcfgu; - u64 bndstatus; -} __packed; - -struct xsave_hdr_struct { - u64 xstate_bv; - u64 xcomp_bv; - u64 reserved[6]; -} __attribute__((packed)); - -struct xsave_struct { - struct i387_fxsave_struct i387; - struct xsave_hdr_struct xsave_hdr; - struct ymmh_struct ymmh; - struct lwp_struct lwp; - struct bndreg bndreg[4]; - struct bndcsr bndcsr; - /* new processor state extensions will go here */ -} __attribute__ ((packed, aligned (64))); - -union thread_xstate { - struct i387_fsave_struct fsave; - struct i387_fxsave_struct fxsave; - struct i387_soft_struct soft; - struct xsave_struct xsave; -}; - -struct fpu { - unsigned int last_cpu; - unsigned int has_fpu; - union thread_xstate *state; - /* - * This counter contains the number of consecutive context switches - * during which the FPU stays used. If this is over a threshold, the - * lazy fpu saving logic becomes unlazy, to save the trap overhead. - * This is an unsigned char so that after 256 iterations the counter - * wraps and the context switch behavior turns lazy again; this is to - * deal with bursty apps that only use the FPU for a short time: - */ - unsigned char counter; -}; - #ifdef CONFIG_X86_64 DECLARE_PER_CPU(struct orig_ist, orig_ist); |