diff options
Diffstat (limited to 'cpukit/score/cpu/sparc/sparc-counter-asm.S')
| -rw-r--r-- | cpukit/score/cpu/sparc/sparc-counter-asm.S | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/cpukit/score/cpu/sparc/sparc-counter-asm.S b/cpukit/score/cpu/sparc/sparc-counter-asm.S deleted file mode 100644 index a073879869..0000000000 --- a/cpukit/score/cpu/sparc/sparc-counter-asm.S +++ /dev/null @@ -1,151 +0,0 @@ -/* SPDX-License-Identifier: BSD-2-Clause */ - -/* - * Copyright (c) 2016, 2018 embedded brains GmbH. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <rtems/asm.h> - - /* - * All functions except _SPARC_Counter_read_clock() in this module are - * sometimes called with traps disabled. - */ - - .section ".text" - .align 4 - - PUBLIC(_SPARC_Counter_read_default) -SYM(_SPARC_Counter_read_default): - sethi %hi(_SPARC_Counter + 12), %o1 - ld [%o1 + %lo(_SPARC_Counter + 12)], %o0 - add %o0, 1, %o0 - st %o0, [%o1 + %lo(_SPARC_Counter + 12)] - jmp %o7 + 8 - nop - - PUBLIC(_SPARC_Counter_read_up) - PUBLIC(_SPARC_Get_timecount_up) -SYM(_SPARC_Counter_read_up): -SYM(_SPARC_Get_timecount_up): - sethi %hi(_SPARC_Counter + 8), %o0 - ld [%o0 + %lo(_SPARC_Counter + 8)], %o0 - jmp %o7 + 8 - ld [%o0], %o0 - - PUBLIC(_SPARC_Counter_read_down) - PUBLIC(_SPARC_Get_timecount_down) -SYM(_SPARC_Counter_read_down): -SYM(_SPARC_Get_timecount_down): - sethi %hi(_SPARC_Counter + 8), %o0 - ld [%o0 + %lo(_SPARC_Counter + 8)], %o0 - ld [%o0], %o0 - jmp %o7 + 8 - xnor %g0, %o0, %o0 - - /* - * For the corresponding C code is something like this: - * - * CPU_Counter_ticks _SPARC_Counter_read_clock_isr_disabled( void ) - * { - * const SPARC_Counter *ctr; - * CPU_Counter_ticks ticks; - * CPU_Counter_ticks accumulated; - * - * ctr = &_SPARC_Counter; - * ticks = *ctr->counter_register; - * accumulated = ctr->accumulated; - * - * if ( ( *ctr->pending_register & ctr->pending_mask ) != 0 ) { - * ticks = *ctr->counter_register; - * accumulated += ctr->interval; - * } - * - * return accumulated - ticks; - * } - */ - PUBLIC(_SPARC_Counter_read_clock_isr_disabled) -SYM(_SPARC_Counter_read_clock_isr_disabled): - sethi %hi(_SPARC_Counter), %o5 - or %o5, %lo(_SPARC_Counter), %o5 - ld [%o5 + 8], %o3 - ld [%o5 + 12], %o4 - ld [%o5 + 16], %o2 - ld [%o3], %o0 - ld [%o4], %o1 - btst %o1, %o2 - bne .Lpending_isr_disabled - ld [%o5 + 20], %o4 - jmp %o7 + 8 - sub %o4, %o0, %o0 -.Lpending_isr_disabled: - ld [%o5 + 24], %o5 - ld [%o3], %o0 - add %o4, %o5, %o4 - jmp %o7 + 8 - sub %o4, %o0, %o0 - - /* - * For the corresponding C code see - * _SPARC_Counter_read_clock_isr_disabled() above. - */ - PUBLIC(_SPARC_Counter_read_clock) - PUBLIC(_SPARC_Get_timecount_clock) -SYM(_SPARC_Counter_read_clock): -SYM(_SPARC_Get_timecount_clock): - sethi %hi(_SPARC_Counter), %o5 - or %o5, %lo(_SPARC_Counter), %o5 - ta SPARC_SWTRAP_IRQDIS - ld [%o5 + 8], %o3 - ld [%o5 + 12], %o4 - ld [%o5 + 16], %o2 - ld [%o3], %o0 - ld [%o4], %o1 - btst %o1, %o2 - bne .Lpending - ld [%o5 + 20], %o4 - ta SPARC_SWTRAP_IRQEN -#ifdef __FIX_LEON3FT_TN0018 - /* A nop is added to work around the GRLIB-TN-0018 errata */ - nop -#endif - jmp %o7 + 8 - sub %o4, %o0, %o0 -.Lpending: - ld [%o5 + 24], %o5 - ld [%o3], %o0 - ta SPARC_SWTRAP_IRQEN - add %o4, %o5, %o4 - jmp %o7 + 8 - sub %o4, %o0, %o0 - - PUBLIC(_SPARC_Counter_read_asr23) - PUBLIC(_SPARC_Get_timecount_asr23) -SYM(_SPARC_Counter_read_asr23): -SYM(_SPARC_Get_timecount_asr23): - jmp %o7 + 8 - mov %asr23, %o0 |