Aren/haiku
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

sparc: interrupt management functions

Browse Source 
Change-Id: Icc689cc0cc0075fbccdad23f77cfa53b1f32df3c
Reviewed-on: https://review.haiku-os.org/c/1107
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
This commit is contained in:
PulkoMandy 2019-02-24 14:19:32 +01:00 committed by waddlesplash
parent c1566b1555
commit e6c9be767b
1 changed files with 75 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
src/system/kernel/arch/sparc/arch_asm.S Normal file
View File

@ -0,0 +1,75 @@
/*
* Copyright 2019, Adrien Destugues, pulkomandy@pulkomandy.tk
* Distributed under the terms of the MIT License.
*/
#include <asm_defs.h>
.text
/* void arch_int_enable_interrupts(void) */
FUNCTION(arch_int_enable_interrupts):
rdpr %pstate, %o0
or %o0, 2, %o0
wrpr %o0, 0, %pstate
ret
FUNCTION_END(arch_int_enable_interrupts)
/* int arch_int_disable_interrupts(void)
*/
FUNCTION(arch_int_disable_interrupts):
rdpr %pstate, %o1
// Set output register to previous state
and %o1, 2, %o0
// Clear interrupt bit
andn %o1, 2, %o1
wrpr %o1, 0, %pstate
ret
FUNCTION_END(arch_int_disable_interrupts)
/* void arch_int_restore_interrupts(int oldState)
*/
FUNCTION(arch_int_restore_interrupts):
rdpr %pstate, %o1
// Clear interrupt bit
andn %o1, 2, %o1
// Restore previous interript bit state
or %o1, %o0, %o1
wrpr %o1, 0, %pstate
ret
FUNCTION_END(arch_int_restore_interrupts)
/* bool arch_int_are_interrupts_enabled(void) */
FUNCTION(arch_int_are_interrupts_enabled):
rdpr %pstate, %o0
andn %o0, 2, %o0
ret
FUNCTION_END(arch_int_are_interrupts_enabled)
/* status_t arch_cpu_user_memcpy(void *to, const void *from, size_t size, addr_t *faultHandler) */
FUNCTION(_arch_cpu_user_memcpy):
// TODO
ret
FUNCTION_END(_arch_cpu_user_memcpy)
/* status_t arch_cpu_user_memset(void *to, char c, size_t count, addr_t *faultHandler) */
FUNCTION(_arch_cpu_user_memset):
// TODO
ret
FUNCTION_END(_arch_cpu_user_memset)
/* ssize_t arch_cpu_user_strlcpy(void *to, const void *from, size_t size, addr_t *faultHandler) */
FUNCTION(_arch_cpu_user_strlcpy):
// TODO
ret
FUNCTION_END(_arch_cpu_user_strlcpy)