Webnext prev parent reply other threads:[~2024-10-10 0:57 UTC newest] Thread overview: 44+ messages / expand[flat nested] mbox.gz Atom feed top 2024-10-09 10:31 [PATCH v3 … WebThis module emulates the I/O resource management inside the Linux kernel. It is mostly a wrapper to libio request/release functions for I/O port and memory regions with additional bookkeeping of allocations. The ioremap () /iounmap () interface is also provided by this module. Requirements: (additionally to Global Requirements) initialized libio
linux - ioremap 返回 NULL - 堆栈内存溢出
Web16 mei 2024 · 47. ioremap函数组共有五个接口,根据函数实现可以分为三类: ioremap & ioremap_nocache实现相同,使用场景为映射device memory类型内存;. ioremap_cached,使用场景为映射normal memory类型内存,且映射后的虚拟内存支持cache;. ioremap_wc & ioremap_wt实现相同,使用场景为映射normal ... Web5 aug. 2015 · I/O memory should normally function as a direct control channel to the device; to that end, ioremap () disables caching on device memory — on the x86 architecture, at least. In truth, the caching status of a memory range obtained from ioremap () … how to start an anonymous llc in new mexico
[RFC PATCH 0/8] mm: ioremap: Convert architectures to take …
Webioremap 依靠 __ioremap实现,它只是在__ioremap中以第三个参数为0调用来实现. ioremap是 内核 提供的用来映射外设寄存器到主存的函数,我们要映射的地址已经从pci_dev中读了出来(上一步),这样就水到渠成的成功映射了而不会和其他地址有冲突。. 映射完了有什么效果 ... Web/* * Provide common bits of early_ioremap() support for architectures needing * temporary mappings during boot before ioremap() is available. * * This is mostly a direct copy of the x86 early_ioremap implementation. Web13 apr. 2024 · Returns 0 on success, callers must check for non-zero return + * value. */-void kmsan_ioremap_page_range(unsigned long addr, unsigned long end, - phys_addr_t phys_addr, pgprot_t prot, - unsigned int page_shift); +int kmsan_ioremap_page_range(unsigned long addr, unsigned long end, ... how to start an animal shelter rescue