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Diffstat (limited to 'libgloss/sparc_leon/kernel_context.S')
-rw-r--r--libgloss/sparc_leon/kernel_context.S112
1 files changed, 0 insertions, 112 deletions
diff --git a/libgloss/sparc_leon/kernel_context.S b/libgloss/sparc_leon/kernel_context.S
deleted file mode 100644
index 0b8cad7aa..000000000
--- a/libgloss/sparc_leon/kernel_context.S
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * 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/elfmacro.h>
-#include <asm-leon/leon.h>
-#include <asm-leon/leonstack.h>
-#include <asm-leon/contextswitch.h>
-#include <asm-leon/winmacros.h>
-#include <asm-leon/leonbare_kernel.h>
-
- FUNC_EXPORT(_leonbare_kernel_switchto)
- FUNC_EXPORT(_leonbare_Stop)
-
- FUNC_IMPORT(leonbare_disable_traps)
-
- .text
-
-/* unsigned int _leonbare_kernel_switchto(struct leonbare_thread_ctx *thread,struct leonbare_thread_ctx *thread) */
-FUNC_BEGIN(_leonbare_kernel_switchto)
-
- /* =================================*/
- /* save context */
- /* =================================*/
-
- mov %o0, %g1
- mov %o1, %g2
- mov %o7, %g3
- rd %psr, %g4 /* psr.cwp should stay same because irq path rely on it. */
-
- call leonbare_disable_traps /* psr in %o0, modify %o0, %o1, %o7 */
- nop
-
- set TACODE_IRQCALL_FLUSH,%o1
- ta TACODE_IRQCALL
-
- st %g4, [%g1 + LEONBARE_THREAD_CTX_STACK_PSR] /* psr */
- set LEONBARE_THREAD_CTX_MAGIC,%g4
- st %g4, [%g1 + LEONBARE_THREAD_CTX_STACK_MAGIC]
-
- mov %g3, %o7 ! restore %o7
-
- LEONBARE_THREAD_CTX_STORE_INS(g1)
- LEONBARE_THREAD_CTX_STORE_LOCALS(g1)
- LEONBARE_THREAD_CTX_STORE_OUTS(g1)
-
- /* =================================*/
- /* restore context */
- /* =================================*/
-
- /* check valid context stack area */
- ld [%g2 + LEONBARE_THREAD_CTX_STACK_MAGIC], %o1
- set LEONBARE_THREAD_CTX_MAGIC,%o2
- cmp %o1, %o2
- beq 1f
- nop
-
- /* stop all */
- ta 0x0
-
-1:
- /* get psr */
- ld [%g2 + LEONBARE_THREAD_CTX_STACK_PSR],%g1 /* psr.cwp should stay same because irq path rely on it. */
- set SPARC_PSR_EF_MASK,%g3 ! clear ef bit
- andn %g1, %g3, %g1
-
- wr %g0,%wim
- nop; nop; nop;
-
- andn %g1, SPARC_PSR_ET_MASK, %g3 ! disable traps, up to PSR_EF imm andn ok
- wr %g3, %psr
- nop; nop; nop;
-
- LEONBARE_THREAD_CTX_LOAD_INS(g2)
- LEONBARE_THREAD_CTX_LOAD_LOCALS(g2)
- LEONBARE_THREAD_CTX_LOAD_OUTS(g2)
-
- SET_WIM_CWPMIN1(g1,o1,o2,o3,o4) ! calc wim from psr_cwp so that next restore traps
-
- wr %g1,%psr
- nop; nop; nop;
-
- retl
- nop
-
-FUNC_END(_leonbare_kernel_switchto)
-
-
-FUNC_BEGIN(_leonbare_Stop)
- ta 0x0
-FUNC_END(_leonbare_Stop)