diff options
author | Alex Waterman <alexw@nvidia.com> | 2016-10-04 17:04:01 -0400 |
---|---|---|
committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2017-02-10 14:57:31 -0500 |
commit | cf0ef133e6e3075c808bb3f553b35e94fc000afd (patch) | |
tree | 13cace143fe43034791570514a05bf06cfcc47cb /drivers/gpu/nvgpu/common/mm/buddy_allocator_priv.h | |
parent | 24e8ee192a02ff75a569f8c734efa9b4b5267fc8 (diff) |
gpu: nvgpu: Move kmem_caches to allocator
Instead of using a single static kmem_cache for each type of
data structure the allocators may want to allocate each
allocator now has its own instance of the kmem_cache. This is
done so that each GPU driver instance can accurately track how
much memory it is using.
In order to support this on older kernels a new NVGPU API has
been made,
nvgpu_kmem_cache_create(struct gk20a *g, size_t size)
To handle the possibility that caches cannot be created with
the same name.
This patch also fixes numerous places where kfree() was wrongly
used to free kmem_cache allocs.
Bug 1799159
Bug 1823380
Change-Id: Id674f9a5445fde3f95db65ad6bf3ea990444603d
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1283826
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'drivers/gpu/nvgpu/common/mm/buddy_allocator_priv.h')
-rw-r--r-- | drivers/gpu/nvgpu/common/mm/buddy_allocator_priv.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/nvgpu/common/mm/buddy_allocator_priv.h b/drivers/gpu/nvgpu/common/mm/buddy_allocator_priv.h index 50a11f14..56aaea62 100644 --- a/drivers/gpu/nvgpu/common/mm/buddy_allocator_priv.h +++ b/drivers/gpu/nvgpu/common/mm/buddy_allocator_priv.h | |||
@@ -1,5 +1,5 @@ | |||
1 | /* | 1 | /* |
2 | * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. | 2 | * Copyright (c) 2016-2017, NVIDIA CORPORATION. All rights reserved. |
3 | * | 3 | * |
4 | * This program is free software; you can redistribute it and/or modify it | 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, | 5 | * under the terms and conditions of the GNU General Public License, |
@@ -20,6 +20,8 @@ | |||
20 | #include <linux/list.h> | 20 | #include <linux/list.h> |
21 | #include <linux/rbtree.h> | 21 | #include <linux/rbtree.h> |
22 | 22 | ||
23 | #include <nvgpu/kmem.h> | ||
24 | |||
23 | struct nvgpu_allocator; | 25 | struct nvgpu_allocator; |
24 | struct vm_gk20a; | 26 | struct vm_gk20a; |
25 | 27 | ||
@@ -126,6 +128,8 @@ struct nvgpu_buddy_allocator { | |||
126 | 128 | ||
127 | struct list_head co_list; | 129 | struct list_head co_list; |
128 | 130 | ||
131 | struct nvgpu_kmem_cache *buddy_cache; | ||
132 | |||
129 | /* | 133 | /* |
130 | * Impose an upper bound on the maximum order. | 134 | * Impose an upper bound on the maximum order. |
131 | */ | 135 | */ |