diff options
Diffstat (limited to 'drivers/gpu/nvgpu/os/linux/vgpu/vgpu_ivm.c')
-rw-r--r-- | drivers/gpu/nvgpu/os/linux/vgpu/vgpu_ivm.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/os/linux/vgpu/vgpu_ivm.c b/drivers/gpu/nvgpu/os/linux/vgpu/vgpu_ivm.c new file mode 100644 index 00000000..bbd444da --- /dev/null +++ b/drivers/gpu/nvgpu/os/linux/vgpu/vgpu_ivm.c | |||
@@ -0,0 +1,53 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2018, 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 | #include <nvgpu/vgpu/vgpu_ivm.h> | ||
18 | |||
19 | #include <linux/tegra-ivc.h> | ||
20 | |||
21 | #include "os/linux/os_linux.h" | ||
22 | |||
23 | struct tegra_hv_ivm_cookie *vgpu_ivm_mempool_reserve(unsigned int id) | ||
24 | { | ||
25 | return tegra_hv_mempool_reserve(id); | ||
26 | } | ||
27 | |||
28 | int vgpu_ivm_mempool_unreserve(struct tegra_hv_ivm_cookie *cookie) | ||
29 | { | ||
30 | return tegra_hv_mempool_unreserve(cookie); | ||
31 | } | ||
32 | |||
33 | u64 vgpu_ivm_get_ipa(struct tegra_hv_ivm_cookie *cookie) | ||
34 | { | ||
35 | return cookie->ipa; | ||
36 | } | ||
37 | |||
38 | u64 vgpu_ivm_get_size(struct tegra_hv_ivm_cookie *cookie) | ||
39 | { | ||
40 | return cookie->size; | ||
41 | } | ||
42 | |||
43 | void *vgpu_ivm_mempool_map(struct tegra_hv_ivm_cookie *cookie) | ||
44 | { | ||
45 | return ioremap_cache(vgpu_ivm_get_ipa(cookie), | ||
46 | vgpu_ivm_get_size(cookie)); | ||
47 | } | ||
48 | |||
49 | void vgpu_ivm_mempool_unmap(struct tegra_hv_ivm_cookie *cookie, | ||
50 | void *addr) | ||
51 | { | ||
52 | iounmap(addr); | ||
53 | } | ||