kernel/git/stable/linux.git/Documentation/ia64/aliasing.txt, branch master

docs: ia64: convert to ReST

2019-07-15T12:20:25+00:00

Rename the ia64 documentation files to ReST, add an index for them and adjust in order to produce a nice html output via the Sphinx build system. There are two upper case file names. Rename them to lower case, as we're working to avoid upper case file names at Documentation. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab

Documentation: update broken web addresses.

2010-08-04T13:21:40+00:00

Below you will find an updated version from the original series bunching all patches into one big patch updating broken web addresses that are located in Documentation/* Some of the addresses date as far far back as 1995 etc... so searching became a bit difficult, the best way to deal with these is to use web.archive.org to locate these addresses that are outdated. Now there are also some addresses pointing to .spec files some are located, but some(after searching on the companies site)where still no where to be found. In this case I just changed the address to the company site this way the users can contact the company and they can locate them for the users. Signed-off-by: Justin P. Mattock Signed-off-by: Thomas Weber Signed-off-by: Mike Frysinger Cc: Paulo Marques Cc: Randy Dunlap Cc: Michael Neuling Signed-off-by: Jiri Kosina

[IA64] prevent MCA when performing MMIO mmap to PCI config space

2007-07-11T18:34:49+00:00

Example memory map (HP rx7640 with 'default' acpiconfig setting, VGA disabled): 0x00000000 - 0x3FFFBFFF supports only WB (cacheable) access If a user attempts to perform an MMIO mmap (using the PCIIOC_MMAP_IS_MEM ioctl) to PCI config space (like mmap'ing and accessing memory at 0xA0000), we will MCA because the kernel will attempt to use a mapping with the UC attribute. So check the memory attribute in kern_mmap and the EFI memmap. If WC is requested, and WC or UC access is supported for the region, allow it. Otherwise, use the same attribute the kernel uses. Updates documentation and test cases as well. Signed-off-by: Alex Chiang Signed-off-by: Bjorn Helgaas Signed-off-by: Tony Luck

[IA64] update memory attribute aliasing documentation & test cases

2007-03-30T16:40:46+00:00

Updates documentation and adds some test cases. Signed-off-by: Bjorn Helgaas Signed-off-by: Tony Luck

[IA64] rework memory attribute aliasing

2006-05-08T23:32:05+00:00

This closes a couple holes in our attribute aliasing avoidance scheme: - The current kernel fails mmaps of some /dev/mem MMIO regions because they don't appear in the EFI memory map. This keeps X from working on the Intel Tiger box. - The current kernel allows UC mmap of the 0-1MB region of /sys/.../legacy_mem even when the chipset doesn't support UC access. This causes an MCA when starting X on HP rx7620 and rx8620 boxes in the default configuration. There's more detail in the Documentation/ia64/aliasing.txt file this adds, but the general idea is that if a region might be covered by a granule-sized kernel identity mapping, any access via /dev/mem or mmap must use the same attribute as the identity mapping. Otherwise, we fall back to using an attribute that is supported according to the EFI memory map, or to using UC if the EFI memory map doesn't mention the region. Signed-off-by: Bjorn Helgaas Signed-off-by: Tony Luck