nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-24 02:22:34 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: nvgpu: simplify gmmu map calls

Browse Source 
Introduce nvgpu_gmmu_map_partial() to map a specific size of a buffer
represented by nvgpu_mem, or what nvgpu_gmmu_map() used to do. Delete
the size parameter from nvgpu_gmmu_map() such that it now maps the
entire buffer. The separate size parameter is a historical artifact from
when nvgpu_mem did not exist yet; the typical use is to map the entire
buffer.

Mapping at a certain address with nvgpu_gmmu_map_fixed() still takes the
size parameter.

The returned address still has to be stored somewhere, typically to
mem.gpu_va by the caller so that the matching unmap variant finds the
right address.

Change-Id: I7d67a0b15d741c6bcee1aecff1678e3216cc28d2
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2601788
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Konsta Hölttä
2021-09-28 09:24:17 +03:00
committed by mobile promotions
parent 6d38ae76ce
commit 1b1d183b9c
15 changed files with 50 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/nvgpu/os/linux/linux-channel.c
View File

@@ -530,7 +530,7 @@ static int nvgpu_channel_alloc_usermode_buffers(struct nvgpu_channel *c,
}
c->usermode_gpfifo.gpu_va = nvgpu_gmmu_map(c->vm, &c->usermode_gpfifo,
c->usermode_gpfifo.size, 0, gk20a_mem_flag_read_only,
0, gk20a_mem_flag_read_only,
false, c->usermode_gpfifo.aperture);
if (c->usermode_gpfifo.gpu_va == 0) {