Files
linux-nvgpu/drivers/gpu/nvgpu/os/posix/posix-fault-injection.c
Vedashree Vidwans e668442e92 gpu: nvgpu: modify nvgpu_timeout_expired() for UT
Currently, nvgpu_timeout_expired returns -ETIMEDOUT almost always.
Modifying the macro provides more control on return value, and we can
return 0 indicating timeout not expired. This will allow timeout not
expired branch cbranch coverage.

Jira NVGPU-4675

Change-Id: Ib83bf15cf5f633639d516a939a7ca52b9866fc51
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2269743
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>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2020-12-15 14:10:29 -06:00

80 lines
2.3 KiB
C

/*
* Copyright (c) 2018-2019, 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"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <stdlib.h>
#include <stdbool.h>
#include <nvgpu/posix/posix-fault-injection.h>
_Thread_local struct nvgpu_posix_fault_inj_container *thread_fi;
void nvgpu_posix_init_fault_injection(struct nvgpu_posix_fault_inj_container *c)
{
thread_fi = c;
}
struct nvgpu_posix_fault_inj_container
*nvgpu_posix_fault_injection_get_container(void)
{
return thread_fi;
}
void nvgpu_posix_enable_fault_injection(struct nvgpu_posix_fault_inj *fi,
bool enable, unsigned int number)
{
if (number == 0U) {
fi->enabled = enable;
fi->counter = 0U;
} else {
fi->enabled = !enable;
fi->counter = number;
}
}
bool nvgpu_posix_is_fault_injection_triggered(struct nvgpu_posix_fault_inj *fi)
{
return fi->enabled;
}
bool nvgpu_posix_is_fault_injection_cntr_set(struct nvgpu_posix_fault_inj *fi)
{
return (fi->counter > 0U);
}
/*
* Return status of fault injection.
* Decrement fault injection count for each call.
*/
bool nvgpu_posix_fault_injection_handle_call(struct nvgpu_posix_fault_inj *fi)
{
bool current_state = fi->enabled;
if (fi->counter > 0U) {
fi->counter--;
if (fi->counter == 0U) {
/* for next time */
fi->enabled = !fi->enabled;
}
}
return current_state;
}