diff options
Diffstat (limited to 'include/nvgpu/linux/cond.h')
| -rw-r--r-- | include/nvgpu/linux/cond.h | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/include/nvgpu/linux/cond.h b/include/nvgpu/linux/cond.h deleted file mode 100644 index b53ada3..0000000 --- a/include/nvgpu/linux/cond.h +++ /dev/null | |||
| @@ -1,81 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved. | ||
| 3 | * | ||
| 4 | * This program is free software; you can redistribute it and/or modify it | ||
| 5 | * under the terms and conditions of the GNU General Public License, | ||
| 6 | * version 2, as published by the Free Software Foundation. | ||
| 7 | * | ||
| 8 | * This program is distributed in the hope it will be useful, but WITHOUT | ||
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
| 11 | * more details. | ||
| 12 | * | ||
| 13 | * You should have received a copy of the GNU General Public License | ||
| 14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
| 15 | */ | ||
| 16 | |||
| 17 | #ifndef __NVGPU_COND_LINUX_H__ | ||
| 18 | #define __NVGPU_COND_LINUX_H__ | ||
| 19 | |||
| 20 | #include <linux/wait.h> | ||
| 21 | #include <linux/sched.h> | ||
| 22 | |||
| 23 | struct nvgpu_cond { | ||
| 24 | bool initialized; | ||
| 25 | wait_queue_head_t wq; | ||
| 26 | }; | ||
| 27 | |||
| 28 | /** | ||
| 29 | * NVGPU_COND_WAIT - Wait for a condition to be true | ||
| 30 | * | ||
| 31 | * @c - The condition variable to sleep on | ||
| 32 | * @condition - The condition that needs to be true | ||
| 33 | * @timeout_ms - Timeout in milliseconds, or 0 for infinite wait | ||
| 34 | * | ||
| 35 | * Wait for a condition to become true. Returns -ETIMEOUT if | ||
| 36 | * the wait timed out with condition false. | ||
| 37 | */ | ||
| 38 | #define NVGPU_COND_WAIT(c, condition, timeout_ms) \ | ||
| 39 | ({\ | ||
| 40 | int ret = 0; \ | ||
| 41 | long _timeout_ms = timeout_ms;\ | ||
| 42 | if (_timeout_ms > 0) { \ | ||
| 43 | long _ret = wait_event_timeout((c)->wq, condition, \ | ||
| 44 | msecs_to_jiffies(_timeout_ms)); \ | ||
| 45 | if (_ret == 0) \ | ||
| 46 | ret = -ETIMEDOUT; \ | ||
| 47 | } else { \ | ||
| 48 | wait_event((c)->wq, condition); \ | ||
| 49 | } \ | ||
| 50 | ret;\ | ||
| 51 | }) | ||
| 52 | |||
| 53 | /** | ||
| 54 | * NVGPU_COND_WAIT_INTERRUPTIBLE - Wait for a condition to be true | ||
| 55 | * | ||
| 56 | * @c - The condition variable to sleep on | ||
| 57 | * @condition - The condition that needs to be true | ||
| 58 | * @timeout_ms - Timeout in milliseconds, or 0 for infinite wait | ||
| 59 | * | ||
| 60 | * Wait for a condition to become true. Returns -ETIMEOUT if | ||
| 61 | * the wait timed out with condition false or -ERESTARTSYS on | ||
| 62 | * signal. | ||
| 63 | */ | ||
| 64 | #define NVGPU_COND_WAIT_INTERRUPTIBLE(c, condition, timeout_ms) \ | ||
| 65 | ({ \ | ||
| 66 | int ret = 0; \ | ||
| 67 | long _timeout_ms = timeout_ms;\ | ||
| 68 | if (_timeout_ms > 0) { \ | ||
| 69 | long _ret = wait_event_interruptible_timeout((c)->wq, condition, \ | ||
| 70 | msecs_to_jiffies(_timeout_ms)); \ | ||
| 71 | if (_ret == 0) \ | ||
| 72 | ret = -ETIMEDOUT; \ | ||
| 73 | else if (_ret == -ERESTARTSYS) \ | ||
| 74 | ret = -ERESTARTSYS; \ | ||
| 75 | } else { \ | ||
| 76 | ret = wait_event_interruptible((c)->wq, condition); \ | ||
| 77 | } \ | ||
| 78 | ret; \ | ||
| 79 | }) | ||
| 80 | |||
| 81 | #endif /* __NVGPU_LOCK_LINUX_H__ */ | ||
