mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-10 13:16:16 +09:00
83d290c56f
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>
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2016 Vasily Khoruzhick <anarsoul@gmail.com>
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*/
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#include <linux/types.h>
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#include <common.h>
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#ifndef CONFIG_SYS_DCACHE_OFF
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void invalidate_dcache_all(void)
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{
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/* Flush/Invalidate I cache */
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asm volatile("mcr p15, 0, %0, c7, c5, 0\n" : : "r"(0));
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/* Flush/Invalidate D cache */
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asm volatile("mcr p15, 0, %0, c7, c6, 0\n" : : "r"(0));
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}
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void flush_dcache_all(void)
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{
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return invalidate_dcache_all();
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}
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void invalidate_dcache_range(unsigned long start, unsigned long stop)
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{
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start &= ~(CONFIG_SYS_CACHELINE_SIZE - 1);
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stop &= ~(CONFIG_SYS_CACHELINE_SIZE - 1);
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while (start <= stop) {
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asm volatile("mcr p15, 0, %0, c7, c6, 1\n" : : "r"(start));
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start += CONFIG_SYS_CACHELINE_SIZE;
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}
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}
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void flush_dcache_range(unsigned long start, unsigned long stop)
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{
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return invalidate_dcache_range(start, stop);
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}
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#else /* #ifndef CONFIG_SYS_DCACHE_OFF */
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void invalidate_dcache_all(void)
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{
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}
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void flush_dcache_all(void)
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{
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}
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#endif /* #ifndef CONFIG_SYS_DCACHE_OFF */
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/*
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* Stub implementations for l2 cache operations
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*/
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__weak void l2_cache_disable(void) {}
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#if CONFIG_IS_ENABLED(SYS_THUMB_BUILD)
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__weak void invalidate_l2_cache(void) {}
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#endif
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