android_kernel_xiaomi_sm8350/include/asm-i386/irq.h
Rusty Russell d3561b7fa0 [PATCH] paravirt: header and stubs for paravirtualisation
Create a paravirt.h header for all the critical operations which need to be
replaced with hypervisor calls, and include that instead of defining native
operations, when CONFIG_PARAVIRT.

This patch does the dumbest possible replacement of paravirtualized
instructions: calls through a "paravirt_ops" structure.  Currently these are
function implementations of native hardware: hypervisors will override the ops
structure with their own variants.

All the pv-ops functions are declared "fastcall" so that a specific
register-based ABI is used, to make inlining assember easier.

And:

+From: Andy Whitcroft <apw@shadowen.org>

The paravirt ops introduce a 'weak' attribute onto memory_setup().
Code ordering leads to the following warnings on x86:

    arch/i386/kernel/setup.c:651: warning: weak declaration of
                `memory_setup' after first use results in unspecified behavior

Move memory_setup() to avoid this.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
2006-12-07 02:14:07 +01:00

48 lines
1000 B
C

#ifndef _ASM_IRQ_H
#define _ASM_IRQ_H
/*
* linux/include/asm/irq.h
*
* (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
*
* IRQ/IPI changes taken from work by Thomas Radke
* <tomsoft@informatik.tu-chemnitz.de>
*/
#include <linux/sched.h>
/* include comes from machine specific directory */
#include "irq_vectors.h"
#include <asm/thread_info.h>
static __inline__ int irq_canonicalize(int irq)
{
return ((irq == 2) ? 9 : irq);
}
#ifdef CONFIG_X86_LOCAL_APIC
# define ARCH_HAS_NMI_WATCHDOG /* See include/linux/nmi.h */
#endif
#ifdef CONFIG_4KSTACKS
extern void irq_ctx_init(int cpu);
extern void irq_ctx_exit(int cpu);
# define __ARCH_HAS_DO_SOFTIRQ
#else
# define irq_ctx_init(cpu) do { } while (0)
# define irq_ctx_exit(cpu) do { } while (0)
#endif
#ifdef CONFIG_IRQBALANCE
extern int irqbalance_disable(char *str);
#endif
#ifdef CONFIG_HOTPLUG_CPU
extern void fixup_irqs(cpumask_t map);
#endif
void init_IRQ(void);
void __init native_init_IRQ(void);
#endif /* _ASM_IRQ_H */