/usr/include/xenomai/asm-sh/hal.h is in libxenomai-dev 2.6.4+dfsg-0.2.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 | /**
* @ingroup hal
* @file
*
* Real-Time Hardware Abstraction Layer for the SuperH architecture.
*
* Copyright © 2011 Philippe Gerum.
*
* Xenomai is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, Inc., 675 Mass Ave,
* Cambridge MA 02139, USA; either version 2 of the License, or (at
* your option) any later version.
*
* Xenomai is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Xenomai; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#ifndef _XENO_ASM_SH_HAL_H
#define _XENO_ASM_SH_HAL_H
#include <linux/irq.h>
#include <asm/system.h>
#include <asm/processor.h>
#define RTHAL_TIMER_DEVICE "TMU0"
#define RTHAL_TIMER_IRQ __ipipe_hrtimer_irq
#define RTHAL_CLOCK_DEVICE "TMU1"
#define RTHAL_CLOCK_MEMBASE __pa(__ipipe_tsc)
#include <asm-generic/xenomai/hal.h> /* Read the generic bits. */
typedef unsigned long long rthal_time_t;
static inline __attribute_const__ unsigned long ffnz(unsigned long ul)
{
return ffs(ul) - 1;
}
#define rthal_grab_control() do { } while(0)
#define rthal_release_control() do { } while(0)
#ifdef CONFIG_XENO_HW_FPU
#ifdef CONFIG_CPU_SH4
#define FPSCR_RCHG 0x00000000
#else
#error "unsupported SH architecture"
#endif
#define rthal_get_fpu_owner(cur) \
({ \
unsigned long __sr; \
__asm__ __volatile__("stc sr, %0\n\t" \
: "=&r" (__sr) \
: /* empty */); \
(__sr & SR_FD) ? NULL : cur; \
})
#define rthal_disable_fpu() disable_fpu()
#define rthal_enable_fpu() enable_fpu()
static inline void rthal_save_fpu(struct thread_struct *ts)
{
unsigned long dummy;
enable_fpu();
asm volatile ("sts.l fpul, @-%0\n\t"
"sts.l fpscr, @-%0\n\t"
"lds %2, fpscr\n\t"
"frchg\n\t"
"fmov.s fr15, @-%0\n\t"
"fmov.s fr14, @-%0\n\t"
"fmov.s fr13, @-%0\n\t"
"fmov.s fr12, @-%0\n\t"
"fmov.s fr11, @-%0\n\t"
"fmov.s fr10, @-%0\n\t"
"fmov.s fr9, @-%0\n\t"
"fmov.s fr8, @-%0\n\t"
"fmov.s fr7, @-%0\n\t"
"fmov.s fr6, @-%0\n\t"
"fmov.s fr5, @-%0\n\t"
"fmov.s fr4, @-%0\n\t"
"fmov.s fr3, @-%0\n\t"
"fmov.s fr2, @-%0\n\t"
"fmov.s fr1, @-%0\n\t"
"fmov.s fr0, @-%0\n\t"
"frchg\n\t"
"fmov.s fr15, @-%0\n\t"
"fmov.s fr14, @-%0\n\t"
"fmov.s fr13, @-%0\n\t"
"fmov.s fr12, @-%0\n\t"
"fmov.s fr11, @-%0\n\t"
"fmov.s fr10, @-%0\n\t"
"fmov.s fr9, @-%0\n\t"
"fmov.s fr8, @-%0\n\t"
"fmov.s fr7, @-%0\n\t"
"fmov.s fr6, @-%0\n\t"
"fmov.s fr5, @-%0\n\t"
"fmov.s fr4, @-%0\n\t"
"fmov.s fr3, @-%0\n\t"
"fmov.s fr2, @-%0\n\t"
"fmov.s fr1, @-%0\n\t"
"fmov.s fr0, @-%0\n\t"
"lds %3, fpscr\n\t":"=r" (dummy)
:"0"((char *)(&ts->fpu.hard.status)),
"r"(FPSCR_RCHG), "r"(FPSCR_INIT)
:"memory");
}
static inline void rthal_restore_fpu(struct thread_struct *ts)
{
unsigned long dummy;
enable_fpu();
asm volatile ("lds %2, fpscr\n\t"
"fmov.s @%0+, fr0\n\t"
"fmov.s @%0+, fr1\n\t"
"fmov.s @%0+, fr2\n\t"
"fmov.s @%0+, fr3\n\t"
"fmov.s @%0+, fr4\n\t"
"fmov.s @%0+, fr5\n\t"
"fmov.s @%0+, fr6\n\t"
"fmov.s @%0+, fr7\n\t"
"fmov.s @%0+, fr8\n\t"
"fmov.s @%0+, fr9\n\t"
"fmov.s @%0+, fr10\n\t"
"fmov.s @%0+, fr11\n\t"
"fmov.s @%0+, fr12\n\t"
"fmov.s @%0+, fr13\n\t"
"fmov.s @%0+, fr14\n\t"
"fmov.s @%0+, fr15\n\t"
"frchg\n\t"
"fmov.s @%0+, fr0\n\t"
"fmov.s @%0+, fr1\n\t"
"fmov.s @%0+, fr2\n\t"
"fmov.s @%0+, fr3\n\t"
"fmov.s @%0+, fr4\n\t"
"fmov.s @%0+, fr5\n\t"
"fmov.s @%0+, fr6\n\t"
"fmov.s @%0+, fr7\n\t"
"fmov.s @%0+, fr8\n\t"
"fmov.s @%0+, fr9\n\t"
"fmov.s @%0+, fr10\n\t"
"fmov.s @%0+, fr11\n\t"
"fmov.s @%0+, fr12\n\t"
"fmov.s @%0+, fr13\n\t"
"fmov.s @%0+, fr14\n\t"
"fmov.s @%0+, fr15\n\t"
"frchg\n\t"
"lds.l @%0+, fpscr\n\t"
"lds.l @%0+, fpul\n\t"
:"=r" (dummy)
:"0"(&ts->fpu), "r"(FPSCR_RCHG)
:"memory");
}
static inline void rthal_init_fpu(struct thread_struct *ts)
{
rthal_restore_fpu(ts);
}
#endif /* CONFIG_XENO_HW_FPU */
static inline unsigned long long rthal_rdtsc(void)
{
unsigned long long t;
rthal_read_tsc(t);
return t;
}
static inline void rthal_timer_program_shot(unsigned long delay)
{
if (delay < 10)
rthal_schedule_irq_head(RTHAL_TIMER_IRQ);
else
__ipipe_program_hrtimer(delay);
}
/* Private interface -- Internal use only */
static inline struct mm_struct *rthal_get_active_mm(void)
{
return current->active_mm;
}
asmlinkage void rthal_thread_trampoline(void);
static const char *const rthal_fault_labels[] = {
[0] = "Breakpoint",
[1] = "Page fault",
[2] = "Address error",
[3] = "FPU error",
[4] = "Exception error",
[5] = NULL
};
#endif /* !_XENO_ASM_SH_HAL_H */
|