* Copyright 2005-2021, Haiku Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
* Axel Dörfler <axeld@pinc-software.de>
* Ingo Weinhold <bonefish@cs.tu-berlin.de>
* Adrien Destugues <pulkomandy@pulkomandy.tk>
*/
#ifndef _KERNEL_ARCH_SPARC_INT_H
#define _KERNEL_ARCH_SPARC_INT_H
#include <SupportDefs.h>
#define NUM_IO_VECTORS 256
static inline void
arch_int_enable_interrupts_inline(void)
{
int tmp;
asm volatile(
"rdpr %%pstate, %0\n"
"or %0, 2, %0\n"
"wrpr %0, %%pstate\n"
: "=r" (tmp)
);
}
static inline int
arch_int_disable_interrupts_inline(void)
{
int flags;
int tmp;
asm volatile(
"rdpr %%pstate, %0\n"
"andn %0, 2, %1\n"
"wrpr %1, %%pstate\n"
: "=r" (flags), "=r" (tmp)
);
return flags & 2;
}
static inline void
arch_int_restore_interrupts_inline(int oldState)
{
if (oldState)
arch_int_enable_interrupts_inline();
}
static inline bool
arch_int_are_interrupts_enabled_inline(void)
{
int flags;
asm volatile(
"rdpr %%pstate, %0\n"
: "=r" (flags)
);
return flags & 2;
}
#define arch_int_enable_interrupts() arch_int_enable_interrupts_inline()
#define arch_int_disable_interrupts() arch_int_disable_interrupts_inline()
#define arch_int_restore_interrupts(status) \
arch_int_restore_interrupts_inline(status)
#define arch_int_are_interrupts_enabled() \
arch_int_are_interrupts_enabled_inline()
#endif
