Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
34 lines
910 B
C
34 lines
910 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef DMA_H
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#define DMA_H
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#include <asm/glue-cache.h>
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#ifndef MULTI_CACHE
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#define dmac_map_area __glue(_CACHE,_dma_map_area)
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#define dmac_unmap_area __glue(_CACHE,_dma_unmap_area)
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/*
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* These are private to the dma-mapping API. Do not use directly.
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* Their sole purpose is to ensure that data held in the cache
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* is visible to DMA, or data written by DMA to system memory is
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* visible to the CPU.
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*/
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extern void dmac_map_area(const void *, size_t, int);
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extern void dmac_unmap_area(const void *, size_t, int);
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#else
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/*
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* These are private to the dma-mapping API. Do not use directly.
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* Their sole purpose is to ensure that data held in the cache
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* is visible to DMA, or data written by DMA to system memory is
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* visible to the CPU.
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*/
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#define dmac_map_area cpu_cache.dma_map_area
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#define dmac_unmap_area cpu_cache.dma_unmap_area
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#endif
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#endif
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