93 lines
3.0 KiB
C
93 lines
3.0 KiB
C
/****************************************************************************
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* boards/risc-v/bl602/bl602evb/src/bl602_ostest.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <string.h>
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#include <syscall.h>
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#include <nuttx/irq.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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#undef HAVE_FPU
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#if defined(CONFIG_ARCH_FPU) && \
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!defined(CONFIG_TESTING_OSTEST_FPUTESTDISABLE) && \
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defined(CONFIG_TESTING_OSTEST_FPUSIZE) && \
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defined(CONFIG_SCHED_WAITPID)
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# define HAVE_FPU 1
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#endif
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#ifdef HAVE_FPU
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#if CONFIG_TESTING_OSTEST_FPUSIZE != (4 * FPU_XCPT_REGS)
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# error "CONFIG_TESTING_OSTEST_FPUSIZE has the wrong size"
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static uint32_t g_saveregs[XCPTCONTEXT_REGS];
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/* Given an array of size CONFIG_TESTING_OSTEST_FPUSIZE, this function will
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* return the current FPU registers.
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*/
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void arch_getfpu(FAR uint32_t *fpusave)
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{
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irqstate_t flags;
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/* Take a snapshot of the thread context right now */
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flags = enter_critical_section();
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riscv_saveusercontext(g_saveregs);
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/* Return only the floating register values */
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memcpy(fpusave, &g_saveregs[INT_XCPT_REGS], (4*FPU_XCPT_REGS));
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leave_critical_section(flags);
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}
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/* Given two arrays of size CONFIG_TESTING_OSTEST_FPUSIZE this function
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* will compare them and return true if they are identical.
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*/
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bool arch_cmpfpu(FAR const uint32_t *fpusave1, FAR const uint32_t *fpusave2)
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{
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return memcmp(fpusave1, fpusave2, (4*FPU_XCPT_REGS)) == 0;
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}
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#endif /* HAVE_FPU */
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