Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.19.11 2021-12-21T20:31:08+00:00 2021-12-21T20:31:08+00:00 Al Viro viro@zeniv.linux.org.uk 2021-09-20T21:32:49+00:00 urn:sha1:5f174ec3c1d62013f86db6597249174d8cb227b2 ... same as the rest of implementations Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at> 2021-06-17T19:44:51+00:00 Johannes Berg johannes.berg@intel.com 2021-03-05T12:19:52+00:00 urn:sha1:ca2e334232b6cd4ae5af9da2df83c009d042aefb Add IO memory emulation that uses callbacks for read/write to the allocated regions. The callbacks can be registered by the users using logic_iomem_alloc(). To use, an architecture must 'select LOGIC_IOMEM' in Kconfig and then include <asm-generic/logic_io.h> into asm/io.h to get the __raw_read*/__raw_write* functions. Optionally, an architecture may 'select LOGIC_IOMEM_FALLBACK' in which case non-emulated regions will 'fall back' to the various real_* functions that must then be provided. Cc: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Richard Weinberger <richard@nod.at>