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nvgpu: update details of return types

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Patch updates the doxygen for APIs nvgpu_enable_irqs and
nvgpu_init_soc_vars and adds describe the error codes which can be
returned by these APIs.

Jira NVGPU-6258

Change-Id: I002d25865eec6e3fa52250fd25880bf259358f1d
Signed-off-by: Prateek sethi <prsethi@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2455856
(cherry picked from commit 01c7f3398622047bdf3d46024c1b51223461cba7)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2460377
GVS: Gerrit_Virtual_Submit
Reviewed-by: Rajesh Devaraj <rdevaraj@nvidia.com>
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Prateek sethi
2020-12-07 10:14:41 +05:30
committed by Alex Waterman
parent ec4e8c7613
commit 9a618aaef3
2 changed files with 17 additions and 3 deletions
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15
drivers/gpu/nvgpu/include/nvgpu/nvgpu_init.h
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2019-2020, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -176,7 +176,18 @@ void nvgpu_start_gpu_idle(struct gk20a *g);
* - set r->irq_requested to true once all the irqs are enabled successfully.
* - In case of failure start cleanup in the reverse order of init.
*
* @return 0 in case of success or error code for the respective failure.
* @return 0 in case of success, <0 in case of failure.
* @retval ENOMEM is returned if (1) Insufficient memory to initialize the
* condition variable attribute object attr, (2) All kernel synchronization
* objects are in use, or there wasn't enough memory to initialize the condvar.
* @retval EBUSY is returned if the cond argument pointer to a previously
* initialized condition variable that hasn't been destroyed.
* @retval EINVAL is returned if invalid value attr passed.
* @retval EFAULT is returned if (1) A fault occurred when the kernel tried to
* access cond or attr, (2) An error occurred trying to access the buffers or
* the start_routine provided.
* @retval EAGAIN is returned if insufficient system resources to create thread.
* @retval Other error codes if pthread_attr_destroy() fails.
*/
int nvgpu_enable_irqs(struct gk20a *g);

5
drivers/gpu/nvgpu/include/nvgpu/soc.h
View File

@@ -111,7 +111,10 @@ bool nvgpu_is_soc_t194_a01(struct gk20a *g);
* - Check if nvgpu_is_hypervisor_mode is enabled if yes then
* - If module is not virtual then set nvgpu_hv_ipa_pa to desc->phys_addr.
*
* @return Returns 0 on success or in case of failure, a suitable error code.
* @return 0 in case of success, <0 in case of call to NvHvGetOsVmId() gets fail.
* @retval ENODEV Get VM id fails to open device node.
* @retval EINVAL Invalid argument
* @retval EFAULT devctl call to nvhv device node returned failure
*/
int nvgpu_init_soc_vars(struct gk20a *g);