diff options
author | Terje Bergstrom <tbergstrom@nvidia.com> | 2017-09-28 15:32:18 -0400 |
---|---|---|
committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2017-10-14 17:13:18 -0400 |
commit | 7685f60d9dd6ed062f3037d4e72ea124c103d211 (patch) | |
tree | a30185cde3b5f4fe1f4b657c7708e2fe8e07ee96 /drivers/gpu/nvgpu/include/nvgpu | |
parent | c7e0c7e7ce045a9bef53f3fa11377ddb23bd79a3 (diff) |
gpu: nvgpu: Abstract rw_semaphore implementation
Abstract implementation of rw_semaphore. In Linux it's implemented
in terms of rw_semaphore. Change deterministic_busy to use the new
implementation.
JIRA NVGPU-259
Change-Id: Ia9c1b6e397581bff7711c5ab6fb76ef6d23cff87
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1570405
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/include/nvgpu')
-rw-r--r-- | drivers/gpu/nvgpu/include/nvgpu/linux/rwsem.h | 26 | ||||
-rw-r--r-- | drivers/gpu/nvgpu/include/nvgpu/rwsem.h | 44 |
2 files changed, 70 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/include/nvgpu/linux/rwsem.h b/drivers/gpu/nvgpu/include/nvgpu/linux/rwsem.h new file mode 100644 index 00000000..7d073d39 --- /dev/null +++ b/drivers/gpu/nvgpu/include/nvgpu/linux/rwsem.h | |||
@@ -0,0 +1,26 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2017, 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_RWSEM_LINUX_H__ | ||
18 | #define __NVGPU_RWSEM_LINUX_H__ | ||
19 | |||
20 | #include <linux/rwsem.h> | ||
21 | |||
22 | struct nvgpu_rwsem { | ||
23 | struct rw_semaphore rwsem; | ||
24 | }; | ||
25 | |||
26 | #endif | ||
diff --git a/drivers/gpu/nvgpu/include/nvgpu/rwsem.h b/drivers/gpu/nvgpu/include/nvgpu/rwsem.h new file mode 100644 index 00000000..d37c11a8 --- /dev/null +++ b/drivers/gpu/nvgpu/include/nvgpu/rwsem.h | |||
@@ -0,0 +1,44 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved. | ||
3 | * | ||
4 | * Permission is hereby granted, free of charge, to any person obtaining a | ||
5 | * copy of this software and associated documentation files (the "Software"), | ||
6 | * to deal in the Software without restriction, including without limitation | ||
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
8 | * and/or sell copies of the Software, and to permit persons to whom the | ||
9 | * Software is furnished to do so, subject to the following conditions: | ||
10 | * | ||
11 | * The above copyright notice and this permission notice shall be included in | ||
12 | * all copies or substantial portions of the Software. | ||
13 | * | ||
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
17 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
19 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
20 | * DEALINGS IN THE SOFTWARE. | ||
21 | */ | ||
22 | #ifndef __NVGPU_RWSEM_H__ | ||
23 | #define __NVGPU_RWSEM_H__ | ||
24 | |||
25 | #ifdef __KERNEL__ | ||
26 | #include <nvgpu/linux/rwsem.h> | ||
27 | #endif | ||
28 | |||
29 | /* | ||
30 | * struct nvgpu_rwsem | ||
31 | * | ||
32 | * Should be implemented per-OS in a separate library | ||
33 | * But implementation should adhere to rw_semaphore implementation | ||
34 | * as specified in Linux Documentation | ||
35 | */ | ||
36 | struct nvgpu_rwsem; | ||
37 | |||
38 | void nvgpu_rwsem_init(struct nvgpu_rwsem *rwsem); | ||
39 | void nvgpu_rwsem_up_read(struct nvgpu_rwsem *rwsem); | ||
40 | void nvgpu_rwsem_down_read(struct nvgpu_rwsem *rwsem); | ||
41 | void nvgpu_rwsem_up_write(struct nvgpu_rwsem *rwsem); | ||
42 | void nvgpu_rwsem_down_write(struct nvgpu_rwsem *rwsem); | ||
43 | |||
44 | #endif | ||