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VIRT_TO_PHYS(9) | Public Functions Provided | VIRT_TO_PHYS(9) |
NAME¶
virt_to_phys - map virtual addresses to physicalSYNOPSIS¶
phys_addr_t
virt_to_phys(volatile void * address);
ARGUMENTS¶
addressaddress to remap
DESCRIPTION¶
The returned physical address is the physical (CPU) mapping for the memory address given. It is only valid to use this function on addresses directly mapped or allocated via kmalloc. This function does not give bus mappings for DMA transfers. In almost all conceivable cases a device driver should not be using this functionAUTHORS¶
Matthew Wilcox <matthew@wil.cx>Author.
Alan Cox <alan@lxorguk.ukuu.org.uk>
Author.
COPYRIGHT¶
January 2017 | Kernel Hackers Manual 4.8. |