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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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C
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748/* SPDX-License-Identifier: GPL-2.0 */#ifndef _ASM_EARLY_IOREMAP_H_#define _ASM_EARLY_IOREMAP_H_
#include <linux/types.h>
/* * early_ioremap() and early_iounmap() are for temporary early boot-time * mappings, before the real ioremap() is functional. */extern void __iomem *early_ioremap(resource_size_t phys_addr, unsigned long size);extern void *early_memremap(resource_size_t phys_addr, unsigned long size);extern void *early_memremap_ro(resource_size_t phys_addr, unsigned long size);extern void *early_memremap_prot(resource_size_t phys_addr, unsigned long size, unsigned long prot_val);extern void early_iounmap(void __iomem *addr, unsigned long size);extern void early_memunmap(void *addr, unsigned long size);
#if defined(CONFIG_GENERIC_EARLY_IOREMAP) && defined(CONFIG_MMU)/* Arch-specific initialization */extern void early_ioremap_init(void);
/* Generic initialization called by architecture code */extern void early_ioremap_setup(void);
/* * Called as last step in paging_init() so library can act * accordingly for subsequent map/unmap requests. */extern void early_ioremap_reset(void);
/* * Early copy from unmapped memory to kernel mapped memory. */extern int copy_from_early_mem(void *dest, phys_addr_t src, unsigned long size);
#elsestatic inline void early_ioremap_init(void) { }static inline void early_ioremap_setup(void) { }static inline void early_ioremap_reset(void) { }#endif
#endif /* _ASM_EARLY_IOREMAP_H_ */