diff options
author | Deepak Nibade <dnibade@nvidia.com> | 2017-07-03 07:10:44 -0400 |
---|---|---|
committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2017-07-07 10:05:39 -0400 |
commit | afa31cdd8cc6bb04faeed30b2cc30f5e6be888b5 (patch) | |
tree | 6cc8c7c48bb86c77dc2b1bc6a59af0ca1cabbb7f /drivers/gpu/nvgpu/common | |
parent | cca0510e477944e8781184592a95debd7742262d (diff) |
gpu: nvgpu: add support for L3 cache allocation of buffers
Add gv11b implementation of gpu_phys_addr() that checks the t19x
GMMU attributes struct to determine if L3 allocation should be
enabled. If L3 alloc is enabled then a special physical address
bit is set.
Add flag NVGPU_AS_MAP_BUFFER_FLAGS_L3_ALLOC to struct
nvgpu_as_map_buffer_ex_args so that User space can add a hint to
allocate buffer in L3 cache
Jira GPUT19X-10
Bug 200279508
Change-Id: I1bb9876a670b252980922aa50e3e69b802be137f
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master/r/1512602
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/common')
-rw-r--r-- | drivers/gpu/nvgpu/common/mm/gmmu_t19x.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/common/mm/gmmu_t19x.c b/drivers/gpu/nvgpu/common/mm/gmmu_t19x.c new file mode 100644 index 00000000..05abec1b --- /dev/null +++ b/drivers/gpu/nvgpu/common/mm/gmmu_t19x.c | |||
@@ -0,0 +1,25 @@ | |||
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 | #include <uapi/linux/nvgpu.h> | ||
18 | |||
19 | #include <nvgpu/gmmu.h> | ||
20 | |||
21 | void nvgpu_gmmu_add_t19x_attrs(struct nvgpu_gmmu_attrs *attrs, u32 flags) | ||
22 | { | ||
23 | attrs->t19x_attrs.l3_alloc = (bool)(flags & | ||
24 | NVGPU_AS_MAP_BUFFER_FLAGS_L3_ALLOC); | ||
25 | } | ||