8e0346d137
* configure.in: Add SPARC LEON support.
* configure: Regenerated.
* sparc_leon/asm-leon/amba.h, sparc_leon/asm-leon/asmmacro.h,
sparc_leon/asm-leon/clock.h, sparc_leon/asm-leon/contextswitch.h,
sparc_leon/asm-leon/elfmacro.h, sparc_leon/asm-leon/head.h,
sparc_leon/asm-leon/irq.h, sparc_leon/asm-leon/jiffies.h,
sparc_leon/asm-leon/lambapp.h, sparc_leon/asm-leon/lambapp_devs.h,
sparc_leon/asm-leon/leon.h, sparc_leon/asm-leon/leon3.h,
sparc_leon/asm-leon/leonbare_debug.h, sparc_leon/asm-leon/leonbare_kernel.h,
sparc_leon/asm-leon/leonbare_kernel_queue.h, sparc_leon/asm-leon/leoncompat.h,
sparc_leon/asm-leon/leondbg.h, sparc_leon/asm-leon/leonstack.h,
sparc_leon/asm-leon/liblocks.h, sparc_leon/asm-leon/linkage.h,
sparc_leon/asm-leon/param.h, sparc_leon/asm-leon/queue.h,
sparc_leon/asm-leon/spinlock.h, sparc_leon/asm-leon/stack.h,
sparc_leon/asm-leon/time.h, sparc_leon/asm-leon/timer.h,
sparc_leon/asm-leon/types.h, sparc_leon/asm-leon/winmacros.h:
New file.
* sparc_leon/Makefile.in, sparc_leon/_exit.c,
sparc_leon/amba.c, sparc_leon/amba_dbg.c,
sparc_leon/amba_driver.c, sparc_leon/amba_scan.c,
sparc_leon/asm-leon, sparc_leon/bdinit.S,
sparc_leon/busscan.S, sparc_leon/cacheA.S,
sparc_leon/catch_interrupt.c, sparc_leon/catch_interrupt_mvt.c,
sparc_leon/catch_interrupt_pending.c, sparc_leon/catch_interrupt_svt.c,
sparc_leon/configure.in,
sparc_leon/console.c, sparc_leon/console_dbg.c,
sparc_leon/console_init.c, sparc_leon/contextswitch.c,
sparc_leon/contextswitch_asm.S, sparc_leon/crt0.S,
sparc_leon/crti.S, sparc_leon/crtn.S,
sparc_leon/etrap.S, sparc_leon/etrap_fast.S,
sparc_leon/fpu.S, sparc_leon/gettimeofday.c,
sparc_leon/initcalls.c, sparc_leon/io.c,
sparc_leon/irqinstall.S, sparc_leon/irqtrap.S,
sparc_leon/irqtrap_fast.S, sparc_leon/jiffies.c,
sparc_leon/kernel.c, sparc_leon/kernel_context.S,
sparc_leon/kernel_debug.c, sparc_leon/kernel_debug_var.c,
sparc_leon/kernel_mm.c, sparc_leon/kernel_mutex.c,
sparc_leon/kernel_queue.c, sparc_leon/kernel_sched.c,
sparc_leon/kernel_thread.c, sparc_leon/lcpuinit.S,
sparc_leon/locore.S, sparc_leon/locore_atexit.c,
sparc_leon/locore_clean.S, sparc_leon/locore_mvt.S,
sparc_leon/locore_mvt_reset.S, sparc_leon/locore_svt.S,
sparc_leon/locore_svt_reset.S, sparc_leon/locore_svtdisp.S,
sparc_leon/locore_var.S, sparc_leon/locore_var_svt.S,
sparc_leon/mmu_asm.S, sparc_leon/mutex.c,
sparc_leon/nocache.S, sparc_leon/pnpinit.c,
sparc_leon/pnpinit_malloc.c, sparc_leon/pnpinit_simple.c,
sparc_leon/regwin.S, sparc_leon/regwin_patch.c,
sparc_leon/regwin_slow.S, sparc_leon/regwinflush.S,
sparc_leon/rtc.c, sparc_leon/rtrap.S,
sparc_leon/rtrap_fast.S, sparc_leon/stop.S,
sparc_leon/timer.c, sparc_leon/times.c:
New file
* sparc_leon/configure: Regenerate
136 lines
3.7 KiB
ArmAsm
136 lines
3.7 KiB
ArmAsm
/*
|
|
* Copyright (c) 2011 Aeroflex Gaisler
|
|
*
|
|
* BSD license:
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
|
|
#include <asm-leon/leon.h>
|
|
#include <asm-leon/leonstack.h>
|
|
#include <asm-leon/asmmacro.h>
|
|
|
|
.seg "text"
|
|
|
|
|
|
/* Number of register windows */
|
|
.global _nwindows_min1, _nwindows
|
|
|
|
! Window overflow trap handler on save.
|
|
! Touches %g1
|
|
/* ------- */
|
|
.weak _window_overflow
|
|
.set _window_overflow,__window_overflow
|
|
.weak _window_overflow_svt
|
|
.set _window_overflow_svt,__window_overflow_svt
|
|
/* ------- */
|
|
!.global _window_overflow,_window_overflow_svt
|
|
.global __window_overflow_rettseq,__window_overflow_rettseq_ret,__window_overflow_slow1
|
|
|
|
__window_overflow_svt:
|
|
__window_overflow:
|
|
#ifndef _FLAT
|
|
__window_overflow_rettseq:
|
|
mov %wim, %l3 ! Calculate next WIM
|
|
mov %g1, %l7
|
|
srl %l3, 1, %g1
|
|
|
|
__window_overflow_rettseq_ret:
|
|
sethi %hi(_nwindows_min1), %l4 ! NWINDOWS-1
|
|
ld [%l4+%lo(_nwindows_min1)], %l4
|
|
|
|
sll %l3, %l4 , %l4
|
|
or %l4, %g1, %g1
|
|
|
|
save ! Get into window to be saved.
|
|
mov %g1, %wim
|
|
nop; nop; nop
|
|
std %l0, [%sp + 0];
|
|
std %l2, [%sp + 8];
|
|
std %l4, [%sp + 16];
|
|
std %l6, [%sp + 24];
|
|
std %i0, [%sp + 32];
|
|
std %i2, [%sp + 40];
|
|
std %i4, [%sp + 48];
|
|
std %i6, [%sp + 56];
|
|
restore ! Go back to trap window.
|
|
mov %l7, %g1
|
|
|
|
jmp %l1 ! Re-execute save.
|
|
rett %l2
|
|
nop
|
|
|
|
__window_overflow_slow1: ! space for possible stackcheck patch
|
|
nop
|
|
nop
|
|
#else
|
|
ta 0 ! halt
|
|
__window_overflow_rettseq:
|
|
__window_overflow_rettseq_ret:
|
|
__window_overflow_slow1:
|
|
nop
|
|
nop
|
|
nop
|
|
#endif
|
|
|
|
/* Window underflow trap handler on restore. */
|
|
|
|
! Touches %g1
|
|
/* ------- */
|
|
.weak _window_underflow
|
|
.set _window_underflow,__window_underflow
|
|
.weak _window_underflow_svt
|
|
.set _window_underflow_svt,__window_underflow_svt
|
|
/* ------- */
|
|
!.global _window_underflow,_window_underflow_svt
|
|
|
|
__window_underflow_svt:
|
|
__window_underflow:
|
|
#ifndef _FLAT
|
|
mov %wim, %l3 ! Calculate next WIM
|
|
sll %l3, 1, %l4
|
|
|
|
sethi %hi(_nwindows_min1), %l5 ! NWINDOWS-1
|
|
ld [%l5+%lo(_nwindows_min1)], %l5
|
|
|
|
srl %l3, %l5, %l5
|
|
or %l5, %l4, %l5
|
|
mov %l5, %wim
|
|
nop; nop; nop
|
|
restore ! Two restores to get into the
|
|
restore ! window to restore
|
|
ldd [%sp + 0], %l0; ! Restore window from the stack
|
|
ldd [%sp + 8], %l2;
|
|
ldd [%sp + 16], %l4;
|
|
ldd [%sp + 24], %l6;
|
|
ldd [%sp + 32], %i0;
|
|
ldd [%sp + 40], %i2;
|
|
ldd [%sp + 48], %i4;
|
|
ldd [%sp + 56], %i6;
|
|
save ! Get back to the trap window.
|
|
save
|
|
jmp %l1 ! Re-execute restore.
|
|
rett %l2
|
|
#else
|
|
ta 0 ! halt
|
|
#endif
|
|
|
|
|