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u-boot/arch/sandbox/include/asm/cache.h

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
/* SPDX-License-Identifier: GPL-2.0+ */
sandbox: Add asm/cache.h for sandbox This file is required by the new DMA buffer alignment macro. Signed-off-by: Anton Staaf <robotboy@chromium.org> Cc: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-10-25 10:48:03 +00:00
/*
* Copyright (c) 2011 The Chromium OS Authors.
*/
#ifndef __SANDBOX_CACHE_H__
#define __SANDBOX_CACHE_H__
/*
* For native compilation of the sandbox we should still align
* the contents of stack buffers to something reasonable. The
* GCC macro __BIGGEST_ALIGNMENT__ is defined to be the maximum
* required alignment for any basic type. This seems reasonable.
sandbox: Fix building with LLVM - The macro __BIGGEST_ALIGNMENT__ is gcc-specific. If it is not defined we'll just assume 16. This is correct for at least the common cases and LLVM does not provide an equivalent macro. - When linking U-Boot we're passing -T to the linker, and while gcc will just pass this along with LLVM we need to be specific. Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-03-05 19:07:44 +00:00
* This is however GCC specific so if we don't have that available
* assume that 16 is large enough.
sandbox: Add asm/cache.h for sandbox This file is required by the new DMA buffer alignment macro. Signed-off-by: Anton Staaf <robotboy@chromium.org> Cc: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-10-25 10:48:03 +00:00
*/
sandbox: Fix building with LLVM - The macro __BIGGEST_ALIGNMENT__ is gcc-specific. If it is not defined we'll just assume 16. This is correct for at least the common cases and LLVM does not provide an equivalent macro. - When linking U-Boot we're passing -T to the linker, and while gcc will just pass this along with LLVM we need to be specific. Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-03-05 19:07:44 +00:00
#ifdef __BIGGEST_ALIGNMENT__
sandbox: Add asm/cache.h for sandbox This file is required by the new DMA buffer alignment macro. Signed-off-by: Anton Staaf <robotboy@chromium.org> Cc: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-10-25 10:48:03 +00:00
#define ARCH_DMA_MINALIGN __BIGGEST_ALIGNMENT__
sandbox: Fix building with LLVM - The macro __BIGGEST_ALIGNMENT__ is gcc-specific. If it is not defined we'll just assume 16. This is correct for at least the common cases and LLVM does not provide an equivalent macro. - When linking U-Boot we're passing -T to the linker, and while gcc will just pass this along with LLVM we need to be specific. Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-03-05 19:07:44 +00:00
#else
#define ARCH_DMA_MINALIGN 16
#endif
sandbox: Add asm/cache.h for sandbox This file is required by the new DMA buffer alignment macro. Signed-off-by: Anton Staaf <robotboy@chromium.org> Cc: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-10-25 10:48:03 +00:00
#endif /* __SANDBOX_CACHE_H__ */
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