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
113 lines
3.2 KiB
ArmAsm
113 lines
3.2 KiB
ArmAsm
/*
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* Copyright (c) 2011 Aeroflex Gaisler
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*
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* BSD license:
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <asm-leon/elfmacro.h>
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#include <asm-leon/leon.h>
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#include <asm-leon/leonstack.h>
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#include <asm-leon/contextswitch.h>
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#include <asm-leon/winmacros.h>
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#include <asm-leon/leonbare_kernel.h>
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FUNC_EXPORT(_leonbare_kernel_switchto)
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FUNC_EXPORT(_leonbare_Stop)
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FUNC_IMPORT(leonbare_disable_traps)
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.text
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/* unsigned int _leonbare_kernel_switchto(struct leonbare_thread_ctx *thread,struct leonbare_thread_ctx *thread) */
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FUNC_BEGIN(_leonbare_kernel_switchto)
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/* =================================*/
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/* save context */
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/* =================================*/
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mov %o0, %g1
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mov %o1, %g2
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mov %o7, %g3
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rd %psr, %g4 /* psr.cwp should stay same because irq path rely on it. */
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call leonbare_disable_traps /* psr in %o0, modify %o0, %o1, %o7 */
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nop
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set TACODE_IRQCALL_FLUSH,%o1
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ta TACODE_IRQCALL
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st %g4, [%g1 + LEONBARE_THREAD_CTX_STACK_PSR] /* psr */
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set LEONBARE_THREAD_CTX_MAGIC,%g4
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st %g4, [%g1 + LEONBARE_THREAD_CTX_STACK_MAGIC]
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mov %g3, %o7 ! restore %o7
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LEONBARE_THREAD_CTX_STORE_INS(g1)
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LEONBARE_THREAD_CTX_STORE_LOCALS(g1)
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LEONBARE_THREAD_CTX_STORE_OUTS(g1)
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/* =================================*/
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/* restore context */
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/* =================================*/
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/* check valid context stack area */
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ld [%g2 + LEONBARE_THREAD_CTX_STACK_MAGIC], %o1
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set LEONBARE_THREAD_CTX_MAGIC,%o2
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cmp %o1, %o2
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beq 1f
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nop
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/* stop all */
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ta 0x0
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1:
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/* get psr */
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ld [%g2 + LEONBARE_THREAD_CTX_STACK_PSR],%g1 /* psr.cwp should stay same because irq path rely on it. */
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set SPARC_PSR_EF_MASK,%g3 ! clear ef bit
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andn %g1, %g3, %g1
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wr %g0,%wim
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nop; nop; nop;
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andn %g1, SPARC_PSR_ET_MASK, %g3 ! disable traps, up to PSR_EF imm andn ok
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wr %g3, %psr
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nop; nop; nop;
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LEONBARE_THREAD_CTX_LOAD_INS(g2)
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LEONBARE_THREAD_CTX_LOAD_LOCALS(g2)
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LEONBARE_THREAD_CTX_LOAD_OUTS(g2)
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SET_WIM_CWPMIN1(g1,o1,o2,o3,o4) ! calc wim from psr_cwp so that next restore traps
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wr %g1,%psr
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nop; nop; nop;
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retl
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nop
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FUNC_END(_leonbare_kernel_switchto)
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FUNC_BEGIN(_leonbare_Stop)
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ta 0x0
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FUNC_END(_leonbare_Stop)
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