1 /* 2 * arch/arm/include/asm/vfpmacros.h 3 * 4 * Assembler-only file containing VFP macros and register definitions. 5 */ 6 #include "vfp.h" 7 8 @ Macros to allow building with old toolkits (with no VFP support) 9 .macro VFPFMRX, rd, sysreg, cond 10 MRC\cond p10, 7, \rd, \sysreg, cr0, 0 @ FMRX \rd, \sysreg 11 .endm 12 13 .macro VFPFMXR, sysreg, rd, cond 14 MCR\cond p10, 7, \rd, \sysreg, cr0, 0 @ FMXR \sysreg, \rd 15 .endm 16 17 @ read all the working registers back into the VFP 18 .macro VFPFLDMIA, base, tmp 19 #if __LINUX_ARM_ARCH__ < 6 20 LDC p11, cr0, [\base],#33*4 @ FLDMIAX \base!, {d0-d15} 21 #else 22 LDC p11, cr0, [\base],#32*4 @ FLDMIAD \base!, {d0-d15} 23 #endif 24 #ifdef CONFIG_VFPv3 25 VFPFMRX \tmp, MVFR0 @ Media and VFP Feature Register 0 26 and \tmp, \tmp, #MVFR0_A_SIMD_MASK @ A_SIMD field 27 cmp \tmp, #2 @ 32 x 64bit registers? 28 ldceql p11, cr0, [\base],#32*4 @ FLDMIAD \base!, {d16-d31} 29 addne \base, \base, #32*4 @ step over unused register space 30 #endif 31 .endm 32 33 @ write all the working registers out of the VFP 34 .macro VFPFSTMIA, base, tmp 35 #if __LINUX_ARM_ARCH__ < 6 36 STC p11, cr0, [\base],#33*4 @ FSTMIAX \base!, {d0-d15} 37 #else 38 STC p11, cr0, [\base],#32*4 @ FSTMIAD \base!, {d0-d15} 39 #endif 40 #ifdef CONFIG_VFPv3 41 VFPFMRX \tmp, MVFR0 @ Media and VFP Feature Register 0 42 and \tmp, \tmp, #MVFR0_A_SIMD_MASK @ A_SIMD field 43 cmp \tmp, #2 @ 32 x 64bit registers? 44 stceql p11, cr0, [\base],#32*4 @ FSTMIAD \base!, {d16-d31} 45 addne \base, \base, #32*4 @ step over unused register space 46 #endif 47 .endm 48