Release 4.14 arch/mips/include/asm/irqflags.h
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1994, 95, 96, 97, 98, 99, 2003 by Ralf Baechle
* Copyright (C) 1996 by Paul M. Antoine
* Copyright (C) 1999 Silicon Graphics
* Copyright (C) 2000 MIPS Technologies, Inc.
*/
#ifndef _ASM_IRQFLAGS_H
#define _ASM_IRQFLAGS_H
#ifndef __ASSEMBLY__
#include <linux/compiler.h>
#include <linux/stringify.h>
#include <asm/compiler.h>
#include <asm/hazards.h>
#if defined(CONFIG_CPU_MIPSR2) || defined (CONFIG_CPU_MIPSR6)
static inline void arch_local_irq_disable(void)
{
__asm__ __volatile__(
" .set push \n"
" .set noat \n"
" di \n"
" " __stringify(__irq_disable_hazard) " \n"
" .set pop \n"
: /* no outputs */
: /* no inputs */
: "memory");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ralf Bächle | 15 | 93.75% | 2 | 66.67% |
| David Howells | 1 | 6.25% | 1 | 33.33% |
| Total | 16 | 100.00% | 3 | 100.00% |
static inline unsigned long arch_local_irq_save(void)
{
unsigned long flags;
asm __volatile__(
" .set push \n"
" .set reorder \n"
" .set noat \n"
#if defined(CONFIG_CPU_LOONGSON3)
" mfc0 %[flags], $12 \n"
" di \n"
#else
" di %[flags] \n"
#endif
" andi %[flags], 1 \n"
" " __stringify(__irq_disable_hazard) " \n"
" .set pop \n"
: [flags] "=r" (flags)
: /* no inputs */
: "memory");
return flags;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Howells | 15 | 42.86% | 1 | 20.00% |
| Huacai Chen | 14 | 40.00% | 1 | 20.00% |
| Jim Quinlan | 3 | 8.57% | 1 | 20.00% |
| Ralf Bächle | 3 | 8.57% | 2 | 40.00% |
| Total | 35 | 100.00% | 5 | 100.00% |
static inline void arch_local_irq_restore(unsigned long flags)
{
unsigned long __tmp1;
__asm__ __volatile__(
" .set push \n"
" .set noreorder \n"
" .set noat \n"
#if defined(CONFIG_IRQ_MIPS_CPU)
/*
* Slow, but doesn't suffer from a relatively unlikely race
* condition we're having since days 1.
*/
" beqz %[flags], 1f \n"
" di \n"
" ei \n"
"1: \n"
#else
/*
* Fast, dangerous. Life is fun, life is good.
*/
" mfc0 $1, $12 \n"
" ins $1, %[flags], 0, 1 \n"
" mtc0 $1, $12 \n"
#endif
" " __stringify(__irq_disable_hazard) " \n"
" .set pop \n"
: [flags] "=r" (__tmp1)
: "0" (flags)
: "memory");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ralf Bächle | 17 | 51.52% | 3 | 60.00% |
| David Howells | 8 | 24.24% | 1 | 20.00% |
| Jim Quinlan | 8 | 24.24% | 1 | 20.00% |
| Total | 33 | 100.00% | 5 | 100.00% |
#else
/* Functions that require preempt_{dis,en}able() are in mips-atomic.c */
void arch_local_irq_disable(void);
unsigned long arch_local_irq_save(void);
void arch_local_irq_restore(unsigned long flags);
#endif /* CONFIG_CPU_MIPSR2 || CONFIG_CPU_MIPSR6 */
static inline void arch_local_irq_enable(void)
{
__asm__ __volatile__(
" .set push \n"
" .set reorder \n"
" .set noat \n"
#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
" ei \n"
#else
" mfc0 $1,$12 \n"
" ori $1,0x1f \n"
" xori $1,0x1e \n"
" mtc0 $1,$12 \n"
#endif
" " __stringify(__irq_enable_hazard) " \n"
" .set pop \n"
: /* no outputs */
: /* no inputs */
: "memory");
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ralf Bächle | 23 | 67.65% | 4 | 66.67% |
| Jim Quinlan | 6 | 17.65% | 1 | 16.67% |
| Markos Chandras | 5 | 14.71% | 1 | 16.67% |
| Total | 34 | 100.00% | 6 | 100.00% |
static inline unsigned long arch_local_save_flags(void)
{
unsigned long flags;
asm __volatile__(
" .set push \n"
" .set reorder \n"
" mfc0 %[flags], $12 \n"
" .set pop \n"
: [flags] "=r" (flags));
return flags;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kevin D. Kissell | 10 | 50.00% | 1 | 25.00% |
| Jim Quinlan | 8 | 40.00% | 1 | 25.00% |
| Ralf Bächle | 2 | 10.00% | 2 | 50.00% |
| Total | 20 | 100.00% | 4 | 100.00% |
static inline int arch_irqs_disabled_flags(unsigned long flags)
{
return !(flags & 1);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ralf Bächle | 18 | 94.74% | 2 | 66.67% |
| David Howells | 1 | 5.26% | 1 | 33.33% |
| Total | 19 | 100.00% | 3 | 100.00% |
#endif /* #ifndef __ASSEMBLY__ */
/*
* Do the CPU's IRQ-state tracing from assembly code.
*/
#ifdef CONFIG_TRACE_IRQFLAGS
/* Reload some registers clobbered by trace_hardirqs_on */
#ifdef CONFIG_64BIT
# define TRACE_IRQS_RELOAD_REGS \
LONG_L $11, PT_R11(sp); \
LONG_L $10, PT_R10(sp); \
LONG_L $9, PT_R9(sp); \
LONG_L $8, PT_R8(sp); \
LONG_L $7, PT_R7(sp); \
LONG_L $6, PT_R6(sp); \
LONG_L $5, PT_R5(sp); \
LONG_L $4, PT_R4(sp); \
LONG_L $2, PT_R2(sp)
#else
# define TRACE_IRQS_RELOAD_REGS \
LONG_L $7, PT_R7(sp); \
LONG_L $6, PT_R6(sp); \
LONG_L $5, PT_R5(sp); \
LONG_L $4, PT_R4(sp); \
LONG_L $2, PT_R2(sp)
#endif
# define TRACE_IRQS_ON \
CLI; /* make sure trace_hardirqs_on() is called in kernel level */ \
jal trace_hardirqs_on
# define TRACE_IRQS_ON_RELOAD \
TRACE_IRQS_ON; \
TRACE_IRQS_RELOAD_REGS
# define TRACE_IRQS_OFF \
jal trace_hardirqs_off
#else
# define TRACE_IRQS_ON
# define TRACE_IRQS_ON_RELOAD
# define TRACE_IRQS_OFF
#endif
#endif /* _ASM_IRQFLAGS_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ralf Bächle | 126 | 45.82% | 8 | 57.14% |
| Jim Quinlan | 52 | 18.91% | 1 | 7.14% |
| Atsushi Nemoto | 29 | 10.55% | 1 | 7.14% |
| David Howells | 25 | 9.09% | 1 | 7.14% |
| Markos Chandras | 19 | 6.91% | 1 | 7.14% |
| Huacai Chen | 14 | 5.09% | 1 | 7.14% |
| Kevin D. Kissell | 10 | 3.64% | 1 | 7.14% |
| Total | 275 | 100.00% | 14 | 100.00% |
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