/* * sync / sw_sync abstraction * Copyright 2015-2016 Collabora Ltd. * * Based on the implementation from the Android Open Source Project, * * Copyright 2012 Google, Inc * * 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 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. */ #include #include #include #include #include #include #include #include #include #include "sync.h" #include "sw_sync.h" #include /* SW_SYNC ioctls */ 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) int sync_wait(int fd, int timeout) { struct pollfd fds; fds.fd = fd; fds.events = POLLIN | POLLERR; return poll(&fds, 1, timeout); } int sync_merge(const char *name, int fd1, int fd2) { struct sync_merge_data data = {}; int err; data.fd2 = fd2; strncpy(data.name, name, sizeof(data.name) - 1); data.name[sizeof(data.name) - 1] = '\0'; err = ioctl(fd1, SYNC_IOC_MERGE, &data); if (err < 0) return err; return data.fence; } 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)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 *)info->sync_fence_info); free(info); } int 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 sync_fence_count_with_status(int fd, int status) { unsigned 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 *)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; } int sw_sync_timeline_create(void) { return open("/sys/kernel/debug/sync/sw_sync", O_RDWR); } int sw_sync_timeline_inc(int fd, unsigned int count) { __u32 arg = count; return ioctl(fd, SW_SYNC_IOC_INC, &arg); } int sw_sync_timeline_is_valid(int fd) { int status; if (fd == -1) return 0; status = fcntl(fd, F_GETFD, 0); return (status >= 0); } void sw_sync_timeline_destroy(int fd) { if (sw_sync_timeline_is_valid(fd)) close(fd); } int sw_sync_fence_create(int fd, const char *name, unsigned int value) { struct sw_sync_create_fence_data data = {}; int err; data.value = value; strncpy(data.name, name, sizeof(data.name) - 1); data.name[sizeof(data.name) - 1] = '\0'; err = ioctl(fd, SW_SYNC_IOC_CREATE_FENCE, &data); if (err < 0) return err; return data.fence; } int sw_sync_fence_is_valid(int fd) { /* Same code! */ return sw_sync_timeline_is_valid(fd); } void sw_sync_fence_destroy(int fd) { if (sw_sync_fence_is_valid(fd)) close(fd); } tr>mode:
authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-01-17 13:46:29 +0000
committerHerbert Xu <herbert@gondor.apana.org.au>2017-01-23 22:41:33 +0800
commit11e3b725cfc282efe9d4a354153e99d86a16af08 (patch)
tree8b5b9e0e1bcae1ab98ee652ffb7b13b05c209bd6 /sound/usb/misc/Makefile
parentd6040764adcb5cb6de1489422411d701c158bb69 (diff)
crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes
Update the ARMv8 Crypto Extensions and the plain NEON AES implementations in CBC and CTR modes to return the next IV back to the skcipher API client. This is necessary for chaining to work correctly. Note that for CTR, this is only done if the request is a round multiple of the block size, since otherwise, chaining is impossible anyway. Cc: <stable@vger.kernel.org> # v3.16+ Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'sound/usb/misc/Makefile')