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9ac7550f35
Implemented NV_READ_ONCE and NV_WRITE_ONCE in common code. Jira GVSCI-10879 Signed-off-by: Richard Zhao <rizhao@nvidia.com> Change-Id: I5465b4bd1cd44fc7bc1592da01d6be455b1fcdcc Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2541559 Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com> Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: Aparna Das <aparnad@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/*
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* Copyright (c) 2017-2021, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __NVGPU_BARRIER_LINUX_H__
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#define __NVGPU_BARRIER_LINUX_H__
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#include <asm/barrier.h>
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#define nvgpu_mb_impl() mb()
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#define nvgpu_rmb_impl() rmb()
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#define nvgpu_wmb_impl() wmb()
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#define nvgpu_smp_mb_impl() smp_mb()
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#define nvgpu_smp_rmb_impl() smp_rmb()
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#define nvgpu_smp_wmb_impl() smp_wmb()
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#ifdef speculation_barrier
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#define nvgpu_speculation_barrier_impl() speculation_barrier()
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#else
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#define nvgpu_speculation_barrier_impl() ({ \
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asm volatile("dsb sy\n" \
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"isb\n" : : : "memory"); })
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#endif
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#endif /* __NVGPU_BARRIER_LINUX_H__ */
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