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gpu: nvgpu: track opened Linux ctrl files

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An upcoming patch will need to enumerate opened ctrl nodes; track them
in a list, protected by a mutex.

Bug 200145225
Bug 200541476

Change-Id: I50dc15056832a3bb53fbdd7bd2bffcdaecc7b21c
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1811840
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
(cherry picked from commit d53495400e
in dev-main)
Reviewed-on: https://git-master.nvidia.com/r/2170005
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Konsta Holtta
2018-09-11 14:37:09 +03:00
committed by mobile promotions
parent 8281262187
commit 7e96b14390
4 changed files with 30 additions and 1 deletions
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4
drivers/gpu/nvgpu/os/linux/os_linux.h
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@@ -65,6 +65,10 @@ struct nvgpu_os_linux {
struct {
struct cdev cdev;
struct device *node;
/* see gk20a_ctrl_priv */
struct nvgpu_list_node privs;
/* guards modifications to the list and its contents */
struct nvgpu_mutex privs_lock;
} ctrl;
struct {