Tested with OHCI and pxafb drivers - no issues found Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>master
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/*
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* (C) Copyright 2016 Vasily Khoruzhick <anarsoul@gmail.com> |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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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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#ifndef CONFIG_SYS_CACHELINE_SIZE |
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#define CONFIG_SYS_CACHELINE_SIZE 32 |
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#endif |
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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 defined CONFIG_SYS_THUMB_BUILD |
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__weak void invalidate_l2_cache(void) {} |
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#endif |
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