157 lines
3.7 KiB
C
157 lines
3.7 KiB
C
/*
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* Copyright © 2015 Canonical Ltd. (Maarten Lankhorst)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <sys/ioctl.h>
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#include <dlfcn.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <pthread.h>
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#include "xf86drm.h"
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#include "nouveau.h"
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static typeof(ioctl) *old_ioctl;
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static int failed;
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static int import_fd;
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int ioctl(int fd, unsigned long request, ...)
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{
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va_list va;
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int ret;
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void *arg;
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va_start(va, request);
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arg = va_arg(va, void *);
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ret = old_ioctl(fd, request, arg);
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va_end(va);
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if (ret < 0 && request == DRM_IOCTL_GEM_CLOSE && errno == EINVAL)
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failed = 1;
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return ret;
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}
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static void *
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openclose(void *dev)
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{
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struct nouveau_device *nvdev = dev;
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struct nouveau_bo *bo = NULL;
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int i;
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for (i = 0; i < 100000; ++i) {
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if (!nouveau_bo_prime_handle_ref(nvdev, import_fd, &bo))
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nouveau_bo_ref(NULL, &bo);
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}
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return NULL;
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}
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int main(int argc, char *argv[])
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{
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drmVersionPtr version;
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const char *device = NULL;
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int err, fd, fd2;
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struct nouveau_device *nvdev, *nvdev2;
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struct nouveau_bo *bo;
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pthread_t t1, t2;
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old_ioctl = dlsym(RTLD_NEXT, "ioctl");
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if (argc < 2) {
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fd = drmOpenWithType("nouveau", NULL, DRM_NODE_RENDER);
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if (fd >= 0)
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fd2 = drmOpenWithType("nouveau", NULL, DRM_NODE_RENDER);
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} else {
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device = argv[1];
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fd = open(device, O_RDWR);
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if (fd >= 0)
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fd2 = open(device, O_RDWR);
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else
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fd2 = fd = -errno;
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}
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if (fd < 0) {
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fprintf(stderr, "Opening nouveau render node failed with %i\n", fd);
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return device ? -fd : 77;
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}
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if (fd2 < 0) {
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fprintf(stderr, "Opening second nouveau render node failed with %i\n", -errno);
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return errno;
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}
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version = drmGetVersion(fd);
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if (version) {
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printf("Version: %d.%d.%d\n", version->version_major,
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version->version_minor, version->version_patchlevel);
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printf(" Name: %s\n", version->name);
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printf(" Date: %s\n", version->date);
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printf(" Description: %s\n", version->desc);
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drmFreeVersion(version);
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}
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err = nouveau_device_wrap(fd, 0, &nvdev);
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if (!err)
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err = nouveau_device_wrap(fd2, 0, &nvdev2);
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if (err < 0)
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return 1;
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err = nouveau_bo_new(nvdev2, NOUVEAU_BO_GART, 0, 4096, NULL, &bo);
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if (!err)
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err = nouveau_bo_set_prime(bo, &import_fd);
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if (!err) {
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pthread_create(&t1, NULL, openclose, nvdev);
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pthread_create(&t2, NULL, openclose, nvdev);
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}
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pthread_join(t1, NULL);
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pthread_join(t2, NULL);
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close(import_fd);
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nouveau_bo_ref(NULL, &bo);
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nouveau_device_del(&nvdev2);
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nouveau_device_del(&nvdev);
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if (device) {
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close(fd2);
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close(fd);
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} else {
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drmClose(fd2);
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drmClose(fd);
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}
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if (failed)
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fprintf(stderr, "DRM_IOCTL_GEM_CLOSE failed with EINVAL,\n"
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"race in opening/closing bo is likely.\n");
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return failed;
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}
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