Add a small library that helps manipulating software fences. They are useful for testing EGL Android fences, since the latter can be created out of them.
Signed-off-by: Rafael Antognolli <[email protected]> --- .../spec/egl_android_native_fence_sync/sw_sync.c | 211 +++++++++++++++++++++ .../spec/egl_android_native_fence_sync/sw_sync.h | 50 +++++ 2 files changed, 261 insertions(+) create mode 100644 tests/egl/spec/egl_android_native_fence_sync/sw_sync.c create mode 100644 tests/egl/spec/egl_android_native_fence_sync/sw_sync.h diff --git a/tests/egl/spec/egl_android_native_fence_sync/sw_sync.c b/tests/egl/spec/egl_android_native_fence_sync/sw_sync.c new file mode 100644 index 0000000..4e8117f --- /dev/null +++ b/tests/egl/spec/egl_android_native_fence_sync/sw_sync.c @@ -0,0 +1,211 @@ +/* + * Copyright 2012 Google, Inc + * Copyright © 2016 Collabora, Ltd. + * + * Based on the implementation from the Android Open Source Project + * + * 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 (including the next + * paragraph) 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. + * + * Authors: + * Robert Foss <[email protected]> + */ + +#include <fcntl.h> +#include <poll.h> +#include <stdint.h> +#include <stdlib.h> +#include <unistd.h> +#include <linux/sync_file.h> +#include <sys/ioctl.h> + +#include "sw_sync.h" + +#ifndef SW_SYNC_IOC_INC +struct sw_sync_create_fence_data { + __u32 value; + char name[32]; + __s32 fence; +}; + +#define SW_SYNC_IOC_MAGIC 'W' +#define SW_SYNC_IOC_CREATE_FENCE _IOWR(SW_SYNC_IOC_MAGIC, 0,\ + struct sw_sync_create_fence_data) +#define SW_SYNC_IOC_INC _IOW(SW_SYNC_IOC_MAGIC, 1, __u32) +#endif + +#define DEVFS_SW_SYNC "/dev/sw_sync" +#define DEBUGFS_SW_SYNC "/sys/kernel/debug/sync/sw_sync" + +bool sw_sync_is_supported(void) +{ + if(access(DEVFS_SW_SYNC, R_OK | W_OK) != -1) { + return true; + } else if (access(DEBUGFS_SW_SYNC, R_OK | W_OK) != -1 ) { + return true; + } + + return false; +} + +int sw_sync_fd_is_valid(int fd) +{ + int status; + + if (fd < 0) + return 0; + + status = fcntl(fd, F_GETFD, 0); + return status >= 0; +} + +static +void sw_sync_fd_close(int fd) +{ + if (!sw_sync_fd_is_valid(fd)) + return; + + close(fd); +} + +int sw_sync_timeline_create(void) +{ + int fd = open(DEVFS_SW_SYNC, O_RDWR); + + if (!sw_sync_fd_is_valid(fd)) + fd = open(DEBUGFS_SW_SYNC, O_RDWR); + + return fd; +} + +void sw_sync_timeline_destroy(int fd) +{ + return sw_sync_fd_close(fd); +} + +void sw_sync_fence_destroy(int fd) +{ + return sw_sync_fd_close(fd); +} + +int sw_sync_fence_create(int fd, int32_t seqno) +{ + struct sw_sync_create_fence_data data = {}; + data.value = seqno; + + if (fd >= 0) { + ioctl(fd, SW_SYNC_IOC_CREATE_FENCE, &data); + return data.fence; + } else { + ioctl(fd, SW_SYNC_IOC_CREATE_FENCE, &data); + return -1; + } +} + +void sw_sync_timeline_inc(int fd, uint32_t count) +{ + uint32_t arg = count; + + if (fd == 0 || fd == -1) + return; + + ioctl(fd, SW_SYNC_IOC_INC, &arg); +} + +static struct sync_file_info *sync_file_info(int fd) +{ + struct sync_file_info *info; + struct sync_fence_info *fence_info; + int err, num_fences; + + info = calloc(1, sizeof(*info)); + if (info == NULL) + return NULL; + + err = ioctl(fd, SYNC_IOC_FILE_INFO, info); + if (err < 0) { + free(info); + return NULL; + } + + num_fences = info->num_fences; + + if (num_fences) { + info->flags = 0; + info->num_fences = num_fences; + + fence_info = calloc(num_fences, sizeof(*fence_info)); + if (!fence_info) { + free(info); + return NULL; + } + + info->sync_fence_info = (uint64_t)(unsigned long) (fence_info); + + err = ioctl(fd, SYNC_IOC_FILE_INFO, info); + if (err < 0) { + free(fence_info); + free(info); + return NULL; + } + } + + return info; +} + +static void sync_file_info_free(struct sync_file_info *info) +{ + free((void *)(uintptr_t)info->sync_fence_info); + free(info); +} + +int sw_sync_fence_size(int fd) +{ + int count; + struct sync_file_info *info = sync_file_info(fd); + + if (!info) + return 0; + + count = info->num_fences; + + sync_file_info_free(info); + + return count; +} + +int sw_sync_fence_count_status(int fd, int status) +{ + int i, count = 0; + struct sync_fence_info *fence_info = NULL; + struct sync_file_info *info = sync_file_info(fd); + + if (!info) + return -1; + + fence_info = (struct sync_fence_info *)(uintptr_t)info->sync_fence_info; + for (i = 0 ; i < info->num_fences ; i++) { + if (fence_info[i].status == status) + count++; + } + + sync_file_info_free(info); + + return count; +} diff --git a/tests/egl/spec/egl_android_native_fence_sync/sw_sync.h b/tests/egl/spec/egl_android_native_fence_sync/sw_sync.h new file mode 100644 index 0000000..4deae6e --- /dev/null +++ b/tests/egl/spec/egl_android_native_fence_sync/sw_sync.h @@ -0,0 +1,50 @@ +/* + * Copyright 2012 Google, Inc + * Copyright © 2016 Collabora, Ltd. + * + * Based on the implementation from the Android Open Source Project + * + * 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 (including the next + * paragraph) 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. + * + * Authors: + * Robert Foss <[email protected]> + */ + +#ifndef SW_SYNC_H +#define SW_SYNC_H + +#include <stdbool.h> + +#define SW_SYNC_FENCE_STATUS_ERROR (-1) +#define SW_SYNC_FENCE_STATUS_ACTIVE (0) +#define SW_SYNC_FENCE_STATUS_SIGNALED (1) + +bool sw_sync_is_supported(void); +int sw_sync_fd_is_valid(int fd); +int sw_sync_timeline_create(void); +void sw_sync_timeline_destroy(int timeline); +void sw_sync_fence_destroy(int fence); +int sw_sync_fence_create(int fd, int32_t seqno); +void sw_sync_timeline_inc(int fd, uint32_t count); +int sw_sync_fence_size(int fd); +int sw_sync_fence_count_status(int fd, int status); + +#endif + -- 2.7.4 _______________________________________________ Piglit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/piglit
