Web* [PATCH v2 1/6] usb: host: ehci-exynos: Use devm_ioremap_resource instead of devm_ioremap 2014-05-10 12:00 [PATCH v2 0/6] usb: host: Cleanup for ioremap'ing hcd memory Vivek Gautam @ 2014-05-10 12:00 ` Vivek Gautam 2014-05-10 12:00 ` [PATCH v2 2/6] usb: host: ehci-msm:" Vivek Gautam ` (6 subsequent siblings) 7 siblings, 0 replies; … Web14 apr. 2024 · 页表的大小取决于系统的地址空间大小和页大小。通常情况下,不建议直接修改页表,因为错误的修改可能导致系统崩溃或其他未定义的行为。在驱动程序和内核编程中,可以使用一些内核提供的API来操作页表和地址映射,如ioremap …
ioremap和ioremap_nocache函数笔记_神秘的羔羊的博客-CSDN博客
WebAPI ¶. The io_mapping functions in linux/io-mapping.h provide an abstraction for efficiently mapping small regions of an I/O device to the CPU. The initial usage is to support the … Web29 aug. 2024 · LKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH v2 00/11] mm: ioremap: Convert architectures to take GENERIC_IOREMAP way @ 2024-08-20 0:31 Baoquan He 2024-08-20 0:31 ` [PATCH v2 01/11] mm/ioremap: change the return value of io[re un]map_allowed and rename Baoquan He ` (10 more replies) 0 siblings, 11 … dibton in hampshire
[PATCH v3 06/27] gpio: replace devm_ioremap_nocache with devm_ioremap
Web5 aug. 2015 · In truth, the caching status of a memory range obtained from ioremap () is not fully defined. As a general rule, uncached is the default, but there is still an … WebAs mentioned by Ian Abbott, the pci address passed to ioremap should be a resource_size_t not an unsigned long. Use a local variable of that type to hold the pci_resource_start() that is passed to ioremp(). Set the dev->iobase to a dummy non-zero value so that the "detach" can use it as a flag to know that comedi_pci_disable() needs … Web>> When is a programmer supposed to use ioremap() >> vs. ioremap_nocache(). Alan> You should never need ioremap_nocache for anything Alan> non-ultraweird. Then who … dib \u0026 associates lawyers