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c384c5d4a2
Extend existing vector tests to be compatible with the xtheadvector instructions. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> Tested-by: Yangyu Chen <cyy@cyyself.name> Link: https://lore.kernel.org/r/20241113-xtheadvector-v11-13-236c22791ef9@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#include "../hwprobe/hwprobe.h"
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#include <asm/vendor/thead.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/wait.h>
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bool is_xtheadvector_supported(void)
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{
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struct riscv_hwprobe pair;
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pair.key = RISCV_HWPROBE_KEY_VENDOR_EXT_THEAD_0;
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riscv_hwprobe(&pair, 1, 0, NULL, 0);
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return pair.value & RISCV_HWPROBE_VENDOR_EXT_XTHEADVECTOR;
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}
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bool is_vector_supported(void)
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{
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struct riscv_hwprobe pair;
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pair.key = RISCV_HWPROBE_KEY_IMA_EXT_0;
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riscv_hwprobe(&pair, 1, 0, NULL, 0);
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return pair.value & RISCV_HWPROBE_EXT_ZVE32X;
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}
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int launch_test(char *next_program, int test_inherit, int xtheadvector)
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{
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char *exec_argv[4], *exec_envp[1];
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int rc, pid, status;
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pid = fork();
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if (pid < 0) {
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printf("fork failed %d", pid);
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return -1;
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}
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if (!pid) {
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exec_argv[0] = next_program;
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exec_argv[1] = test_inherit != 0 ? "x" : NULL;
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exec_argv[2] = xtheadvector != 0 ? "x" : NULL;
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exec_argv[3] = NULL;
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exec_envp[0] = NULL;
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/* launch the program again to check inherit */
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rc = execve(next_program, exec_argv, exec_envp);
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if (rc) {
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perror("execve");
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printf("child execve failed %d\n", rc);
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exit(-1);
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}
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}
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rc = waitpid(-1, &status, 0);
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if (rc < 0) {
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printf("waitpid failed\n");
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return -3;
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}
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if ((WIFEXITED(status) && WEXITSTATUS(status) == -1) ||
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WIFSIGNALED(status)) {
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printf("child exited abnormally\n");
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return -4;
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}
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return WEXITSTATUS(status);
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}
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