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[WHAT] Test the existing CPP macro _LINUX_FPU_COMPILATION_UNIT, which is set when building source files that are permitted to use floating point, in the implementation of DC_FP_START/END so that those are only usable in non-FP code. This is a requirement of the generic kernel mode FPU API, as some architectures (i.e., arm64) cannot safely enable FP codegen in arbitrary code. Cc: Austin Zheng <austin.zheng@amd.com> Cc: Jun Lei <jun.lei@amd.com> Cc: Harry Wentland <harry.wentland@amd.com> Cc: Leo Li <sunpeng.li@amd.com> Cc: Rodrigo Siqueira <siqueira@igalia.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Suggested-by: Christian König <christian.koenig@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright 2021 Advanced Micro Devices, Inc.
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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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: AMD
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*
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*/
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#ifndef __DC_FPU_H__
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#define __DC_FPU_H__
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void dc_assert_fp_enabled(void);
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void dc_fpu_begin(const char *function_name, const int line);
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void dc_fpu_end(const char *function_name, const int line);
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#ifndef _LINUX_FPU_COMPILATION_UNIT
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#define DC_FP_START() dc_fpu_begin(__func__, __LINE__)
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#define DC_FP_END() dc_fpu_end(__func__, __LINE__)
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#else
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#define DC_FP_START() BUILD_BUG()
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#define DC_FP_END() BUILD_BUG()
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#endif
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#endif /* __DC_FPU_H__ */
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