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gpu: nvgpu: add ctrl device instance ID

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In order to share the TSG across different devices securely, device
instance IDs are to be exchanged for endpoint identification. Add
device instance ID field to gk20a_ctrl_priv which is generated
from gk20a level device instance id value.

Share this ID to userspace via gpu characteristics.

Bug 3677982
JIRA NVGPU-8681

Change-Id: I79d92a81c02272c52e24f5b12c452c8993137037
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2792079
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Scott Long <scottl@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Sagar Kamble
2022-09-26 17:46:58 +05:30
committed by mobile promotions
parent 41c874a2d9
commit 6e2b592ab9
8 changed files with 60 additions and 3 deletions
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3
drivers/gpu/nvgpu/os/linux/module.c
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@@ -1082,6 +1082,9 @@ void gk20a_remove_support(struct gk20a *g)
nvgpu_fbp_remove_support(g);
#ifdef CONFIG_NVGPU_TSG_SHARING
nvgpu_mutex_destroy(&g->ctrl_dev_id_lock);
#endif
nvgpu_remove_usermode_support(g);
nvgpu_free_enabled_flags(g);