lkml.org 
[lkml]   [2010]   [May]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH][v2 1/3] x86: Export FPU API for KVM use
    Date
    Also add some constants.

    Signed-off-by: Sheng Yang <sheng@linux.intel.com>
    ---
    arch/x86/include/asm/i387.h | 2 ++
    arch/x86/include/asm/xsave.h | 3 +++
    arch/x86/kernel/i387.c | 3 ++-
    arch/x86/kernel/process.c | 1 +
    4 files changed, 8 insertions(+), 1 deletions(-)

    diff --git a/arch/x86/include/asm/i387.h b/arch/x86/include/asm/i387.h
    index 8002e9c..9610628 100644
    --- a/arch/x86/include/asm/i387.h
    +++ b/arch/x86/include/asm/i387.h
    @@ -488,6 +488,8 @@ static inline void fpu_copy(struct fpu *dst, struct fpu *src)
    memcpy(dst->state, src->state, xstate_size);
    }

    +extern void fpu_finit(struct fpu *fpu);
    +
    #endif /* __ASSEMBLY__ */

    #define PSHUFB_XMM5_XMM0 .byte 0x66, 0x0f, 0x38, 0x00, 0xc5
    diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
    index 2c4390c..29ee4e4 100644
    --- a/arch/x86/include/asm/xsave.h
    +++ b/arch/x86/include/asm/xsave.h
    @@ -13,6 +13,9 @@

    #define FXSAVE_SIZE 512

    +#define XSTATE_YMM_SIZE 256
    +#define XSTATE_YMM_OFFSET (512 + 64)
    +
    /*
    * These are the features that the OS can handle currently.
    */
    diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
    index 86cef6b..c4444bc 100644
    --- a/arch/x86/kernel/i387.c
    +++ b/arch/x86/kernel/i387.c
    @@ -107,7 +107,7 @@ void __cpuinit fpu_init(void)
    }
    #endif /* CONFIG_X86_64 */

    -static void fpu_finit(struct fpu *fpu)
    +void fpu_finit(struct fpu *fpu)
    {
    #ifdef CONFIG_X86_32
    if (!HAVE_HWFP) {
    @@ -132,6 +132,7 @@ static void fpu_finit(struct fpu *fpu)
    fp->fos = 0xffff0000u;
    }
    }
    +EXPORT_SYMBOL_GPL(fpu_finit);

    /*
    * The _current_ task is using the FPU for the first time
    diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
    index 8bcc21f..373fec9 100644
    --- a/arch/x86/kernel/process.c
    +++ b/arch/x86/kernel/process.c
    @@ -28,6 +28,7 @@ unsigned long idle_nomwait;
    EXPORT_SYMBOL(idle_nomwait);

    struct kmem_cache *task_xstate_cachep;
    +EXPORT_SYMBOL(task_xstate_cachep);

    int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
    {
    --
    1.7.0.1


    \
     
     \ /
      Last update: 2010-05-17 11:13    [W:3.458 / U:1.176 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site