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c6d5fb348c
This change ensures that in scenarios where GPU enters a bad state because of the work submitted by a misbehaved thread, we should be able to capture thread name as part of our 1st set of failure logs. Changes for QNX env is pending. JIRA NVGPU-7783 Change-Id: I65d55a6ade749ff91739458e0642ed2dafaae5cc Signed-off-by: Kishan <kpalankar@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2879197 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: Tejal Kudav <tkudav@nvidia.com> Reviewed-by: Ankur Kishore <ankkishore@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
107 lines
3.0 KiB
C
107 lines
3.0 KiB
C
/*
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* Copyright (c) 2018-2023, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <nvgpu/os_sched.h>
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#include <unistd.h>
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#include <pthread.h>
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#define CURRENT_NAME_LEN 30
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int nvgpu_current_pid(struct gk20a *g)
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{
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(void)g;
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/*
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* In the kernel this gets us the PID of the calling process for IOCTLs.
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* But since we are in userspace this doesn't quite mean the same thing.
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* This simply returns the PID of the currently running process.
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*/
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return (int)getpid();
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}
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int nvgpu_current_tid(struct gk20a *g)
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{
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(void)g;
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/*
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* In POSIX thread ID is not the same as a process ID. In Linux threads
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* and processes are represented by the same thing, but userspace can't
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* really rely on that.
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*
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* We can, however, get a pthread_t for a given thread. But this
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* pthread_t need not have any relation to the underlying system's
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* representation of "threads".
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*/
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return (int)pthread_self();
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}
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void nvgpu_get_thread_name(char *dest)
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{
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(void)dest;
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}
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void nvgpu_print_current_impl(struct gk20a *g, const char *func_name, int line,
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void *ctx, enum nvgpu_log_type type)
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{
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(void)func_name;
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(void)line;
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(void)ctx;
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const char *log_message = "(unknown process)";
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#if defined(__NVGPU_POSIX__)
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#ifdef _GNU_SOURCE
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char current_tname[CURRENT_NAME_LEN];
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/* pthread_getname_np() will return null terminated string on success */
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if (pthread_getname_np(0, current_tname, CURRENT_NAME_LEN) == 0) {
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log_message = current_tname;
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}
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#else
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type = NVGPU_ERROR;
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#endif
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#else
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char current_tname[CURRENT_NAME_LEN];
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/* pthread_getname_np() will return null terminated string on success */
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if (pthread_getname_np(0, current_tname, CURRENT_NAME_LEN) == 0) {
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log_message = current_tname;
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}
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#endif
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switch (type) {
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case NVGPU_ERROR:
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nvgpu_err(g, "%s", log_message);
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break;
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case NVGPU_WARNING:
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nvgpu_warn(g, "%s", log_message);
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break;
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case NVGPU_DEBUG:
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nvgpu_log(g, 0U, "%s", log_message);
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break;
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case NVGPU_INFO:
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nvgpu_info(g, "%s", log_message);
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break;
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default:
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nvgpu_err(g, "%s", log_message);
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break;
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}
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}
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