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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536/* SPDX-License-Identifier: GPL-2.0 *//* * arch/arm/include/asm/cache.h */#ifndef __ASMARM_CACHE_H#define __ASMARM_CACHE_H
#define L1_CACHE_SHIFT CONFIG_ARM_L1_CACHE_SHIFT#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
/* * Memory returned by kmalloc() may be used for DMA, so we must make * sure that all such allocations are cache aligned. Otherwise, * unrelated code may cause parts of the buffer to be read into the * cache before the transfer is done, causing old data to be seen by * the CPU. */#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
/* * With EABI on ARMv5 and above we must have 64-bit aligned slab pointers. */#if defined(CONFIG_AEABI) && (__LINUX_ARM_ARCH__ >= 5)#define ARCH_SLAB_MINALIGN 8#endif
#define __read_mostly __section(".data..read_mostly")
#ifndef __ASSEMBLY__#ifdef CONFIG_ARCH_HAS_CACHE_LINE_SIZEint cache_line_size(void);#endif#endif
#endif