mirror of
git://nv-tegra.nvidia.com/linux-nvgpu.git
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a7caa8da79
Fix below misra violations:
directive_4_6_violation: Using basic numerical type "int" rather than
a typedef that includes size and signedness
information.
rule_20_7_violation: Macro parameter expands into an expression without
being wrapped by parentheses
Bug 3763551
Change-Id: I74f2edaef0b21369b76afd596b69157123eca261
Signed-off-by: Santosh BS <santoshb@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2868944
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: V M S Seeta Rama Raju Mudundi <srajum@nvidia.com>
Reviewed-by: Rajesh Devaraj <rdevaraj@nvidia.com>
Reviewed-by: Ankur Kishore <ankkishore@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
137 lines
4.9 KiB
C
137 lines
4.9 KiB
C
/*
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* Copyright (c) 2019-2023, 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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#ifndef NVGPU_POSIX_TIMERS_H
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#define NVGPU_POSIX_TIMERS_H
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#include <nvgpu/types.h>
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#include <nvgpu/log.h>
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/**
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* @brief Private handler of CPU timeout, should not be used directly.
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*
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* Posix implementation of the CPU timeout handler. Checks if the timeout
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* duration has expired or not.
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*
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* @param timeout [in] Timeout object.
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* @param caller [in] Instruction pointer of the caller.
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* @param fmt [in] Format of the variable length argument.
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* @param arg... [in] Variable length arguments.
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*
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* @return Shall return 0 if the timeout has not expired; otherwise, an error
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* number indicating a timeout is returned.
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*
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* @retval 0 if timeout has not expired.
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* @retval -ETIMEDOUT for timeout.
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*/
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#define nvgpu_timeout_expired_msg_cpu(timeout, caller, fmt, arg...) \
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({ \
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const struct nvgpu_timeout *t_ptr = (timeout); \
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s32 ret_cpu = 0; \
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if (nvgpu_current_time_ns() > t_ptr->time_duration) { \
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if ((t_ptr->flags & NVGPU_TIMER_SILENT_TIMEOUT) == 0U) { \
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nvgpu_err(t_ptr->g, "Timeout detected @ %p" fmt, \
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caller, ##arg); \
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} \
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ret_cpu = -ETIMEDOUT; \
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} \
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(s32)ret_cpu; \
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})
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/**
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* @brief Private handler of retry timeout, should not be used directly.
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*
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* Posix implementation of the retry timeout handler. Checks if the retry limit
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* has reached, return an error value to indicate a timeout if the retry limit
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* has reached else increment the retry count and return.
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*
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* @param timeout [in] Timeout object.
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* @param caller [in] Instruction pointer of the caller.
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* @param fmt [in] Format of the variable length argument.
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* @param arg... [in] Variable length arguments.
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*
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* @return Shall return 0 if the timeout has not expired; otherwise, an error
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* number indicating a timeout is returned.
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*
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* @retval 0 if timeout has not expired.
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* @retval -ETIMEDOUT for timeout.
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*/
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#define nvgpu_timeout_expired_msg_retry(timeout, caller, fmt, arg...) \
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({ \
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struct nvgpu_timeout *t_ptr = (timeout); \
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s32 ret_retry = 0; \
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if (t_ptr->retries.attempted >= t_ptr->retries.max_attempts) { \
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if ((t_ptr->flags & NVGPU_TIMER_SILENT_TIMEOUT) == 0U) { \
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nvgpu_err(t_ptr->g, "No more retries @ %p" fmt, \
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caller, ##arg); \
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} \
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ret_retry = -ETIMEDOUT; \
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} else { \
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t_ptr->retries.attempted++; \
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} \
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(s32)ret_retry; \
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})
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/**
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* @brief Private handler of userspace timeout, should not be used directly.
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*
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* Posix implementation of the timeout handler. Differentiates between a CPU
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* timer and a retry timer and handles accordingly. Macro does not perform
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* any validation of the parameters.
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*
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* @param timeout [in] Timeout object.
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* @param caller [in] Instruction pointer of the caller.
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* @param fmt [in] Format of the variable length argument.
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* @param arg... [in] Variable length arguments.
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*
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* @return Shall return 0 if the timeout has not expired; otherwise, an error
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* number indicating a timeout is returned.
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*
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* @retval 0 if timeout has not expired.
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* @retval -ETIMEDOUT for timeout.
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*/
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#define nvgpu_timeout_expired_msg_impl(timeout, caller, fmt, arg...) \
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({ \
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s32 ret_timeout = is_fault_injection_set; \
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if (ret_timeout == -1) { \
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if (((timeout)->flags & NVGPU_TIMER_RETRY_TIMER) != 0U) { \
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ret_timeout = nvgpu_timeout_expired_msg_retry((timeout),\
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caller, fmt, ##arg); \
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} else { \
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ret_timeout = nvgpu_timeout_expired_msg_cpu((timeout), \
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caller, fmt, ##arg); \
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} \
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} \
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(s32)ret_timeout; \
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})
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#ifdef NVGPU_UNITTEST_FAULT_INJECTION_ENABLEMENT
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struct nvgpu_posix_fault_inj *nvgpu_timers_get_fault_injection(void);
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int nvgpu_timeout_expired_fault_injection(void);
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#define is_fault_injection_set nvgpu_timeout_expired_fault_injection()
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#else
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#define is_fault_injection_set -1
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#endif /* NVGPU_UNITTEST_FAULT_INJECTION_ENABLEMENT */
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#endif
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