• Linus Torvalds's avatar
    Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ce4d72fa
    Linus Torvalds authored
    Pull x86 fpu changes from Ingo Molnar:
     "There are two main areas of changes:
    
       - Rework of the extended FPU state code to robustify the kernel's
         usage of cpuid provided xstate sizes - and related changes (Dave
         Hansen)"
    
       - math emulation enhancements: new modern FPU instructions support,
         with testcases, plus cleanups (Denys Vlasnko)"
    
    * 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
      x86/fpu: Fixup uninitialized feature_name warning
      x86/fpu/math-emu: Add support for FISTTP instructions
      x86/fpu/math-emu, selftests: Add test for FISTTP instructions
      x86/fpu/math-emu: Add support for FCMOVcc insns
      x86/fpu/math-emu: Add support for F[U]COMI[P] insns
      x86/fpu/math-emu: Remove define layer for undocumented opcodes
      x86/fpu/math-emu, selftests: Add tests for FCMOV and FCOMI insns
      x86/fpu/math-emu: Remove !NO_UNDOC_CODE
      x86/fpu: Check CPU-provided sizes against struct declarations
      x86/fpu: Check to ensure increasing-offset xstate offsets
      x86/fpu: Correct and check XSAVE xstate size calculations
      x86/fpu: Add C structures for AVX-512 state components
      x86/fpu: Rework YMM definition
      x86/fpu/mpx: Rework MPX 'xstate' types
      x86/fpu: Add xfeature_enabled() helper instead of test_bit()
      x86/fpu: Remove 'xfeature_nr'
      x86/fpu: Rework XSTATE_* macros to remove magic '2'
      x86/fpu: Rename XFEATURES_NR_MAX
      x86/fpu: Rename XSAVE macros
      x86/fpu: Remove partial LWP support definitions
      ...
    ce4d72fa
x86.c 205 KB