/usr/include/xenomai/asm-powerpc/fptest.h is in libxenomai-dev 2.6.4+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | #ifndef _XENO_ASM_POWERPC_FPTEST_H
#define _XENO_ASM_POWERPC_FPTEST_H
#ifdef __KERNEL__
#include <linux/module.h>
static inline int fp_kernel_supported(void)
{
#ifdef CONFIG_PPC_FPU
return 1;
#else /* !CONFIG_PPC_FPU */
#ifdef CONFIG_XENO_HW_MATH_EMU
static int once = 0;
if (!once) {
once = 1;
printk("Warning: math emulation code defined in kernel\n"
" no kernel-based FPU support for this platform\n");
}
#endif /* !CONFIG_XENO_HW_MATH_EMU */
return 0;
#endif /* !CONFIG_PPC_FPU */
}
static inline int fp_linux_begin(void)
{
return -ENOSYS;
}
static inline void fp_linux_end(void)
{
}
#else /* !__KERNEL__ */
#include <stdint.h>
#include <stdio.h>
#define printk printf
#endif /* !__KERNEL__ */
static inline void fp_features_init(void)
{
}
#ifndef __NO_FPRS__ /* i.e. has FPU, not SPE */
static inline void fp_regs_set(unsigned int val)
{
uint64_t fpval = val;
__asm__ __volatile__("lfd 0, %0\n"
" fmr 1, 0\n"
" fmr 2, 0\n"
" fmr 3, 0\n"
" fmr 4, 0\n"
" fmr 5, 0\n"
" fmr 6, 0\n"
" fmr 7, 0\n"
" fmr 8, 0\n"
" fmr 9, 0\n"
" fmr 10, 0\n"
" fmr 11, 0\n"
" fmr 12, 0\n"
" fmr 13, 0\n"
" fmr 14, 0\n"
" fmr 15, 0\n"
" fmr 16, 0\n"
" fmr 17, 0\n"
" fmr 18, 0\n"
" fmr 19, 0\n"
" fmr 20, 0\n"
" fmr 21, 0\n"
" fmr 22, 0\n"
" fmr 23, 0\n"
" fmr 24, 0\n"
" fmr 25, 0\n"
" fmr 26, 0\n"
" fmr 27, 0\n"
" fmr 28, 0\n"
" fmr 29, 0\n"
" fmr 30, 0\n"
" fmr 31, 0\n"::"m"(fpval));
}
#define FPTEST_REGVAL(n) { \
uint64_t t; \
__asm__ __volatile__(" stfd " #n ", %0" : "=m" (t)); \
e[n] = (unsigned int)t; \
}
static inline unsigned fp_regs_check(unsigned int val)
{
unsigned int i, result = val;
uint32_t e[32];
FPTEST_REGVAL(0);
FPTEST_REGVAL(1);
FPTEST_REGVAL(2);
FPTEST_REGVAL(3);
FPTEST_REGVAL(4);
FPTEST_REGVAL(5);
FPTEST_REGVAL(6);
FPTEST_REGVAL(7);
FPTEST_REGVAL(8);
FPTEST_REGVAL(9);
FPTEST_REGVAL(10);
FPTEST_REGVAL(11);
FPTEST_REGVAL(12);
FPTEST_REGVAL(13);
FPTEST_REGVAL(14);
FPTEST_REGVAL(15);
FPTEST_REGVAL(16);
FPTEST_REGVAL(17);
FPTEST_REGVAL(18);
FPTEST_REGVAL(19);
FPTEST_REGVAL(20);
FPTEST_REGVAL(21);
FPTEST_REGVAL(22);
FPTEST_REGVAL(23);
FPTEST_REGVAL(24);
FPTEST_REGVAL(25);
FPTEST_REGVAL(26);
FPTEST_REGVAL(27);
FPTEST_REGVAL(28);
FPTEST_REGVAL(29);
FPTEST_REGVAL(30);
FPTEST_REGVAL(31);
for (i = 0; i < 32; i++)
if (e[i] != val) {
printk("r%d: %u != %u\n", i, e[i], val);
result = e[i];
}
return result;
}
#else /* __NO_FPRS__ */
static inline void fp_regs_set(unsigned int val) { }
static inline unsigned fp_regs_check(unsigned int val)
{
return val;
}
#endif /* __NO_FPRS__ */
#endif /* !_XENO_ASM_POWERPC_FPTEST_H */
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