Find all needed information about X86 Pat Support. Below you can see links where you can find everything you want to know about X86 Pat Support.
https://www.kernel.org/doc/html/latest/x86/pat.html
11. PAT (Page Attribute Table)¶ x86 Page Attribute Table (PAT) allows for setting the memory attribute at the page level granularity. PAT is complementary to the MTRR settings which allows for setting of memory types over physical address ranges.
http://www.mjmwired.net/kernel/Documentation/x86/pat.txt
Based on kernel version 4.16.1.Page generated on 2018-04-09 11:53 EST.. 1 2 PAT (Page Attribute Table) 3 4 x86 Page Attribute Table (PAT) allows for setting the memory attribute at the 5 page level granularity. PAT is complementary to the MTRR settings which allows 6 for setting of memory types over physical address ranges. However, PAT is 7 more flexible than MTRR due to its capability to set ...
https://lkml.kernel.org/r/alpine.LRH.2.02.1707041749300.3456@file01.intranet.prod.int.rdu2.redhat.com
Mikulas 8<----- Subject: x86/mm/pat: Don't report PAT on CPUs that don't support it From: Mikulas Patocka <[email protected]> Date: Tue, 6 Jun 2017 18:49:39 -0400 (EDT) The pat_enabled() logic is broken on CPUs which do not support PAT and where the initialization code fails to call pat_init().
https://lore.kernel.org/patchwork/patch/661292/
In preparation for fixing a regression caused by 'commit 9cd25aac1f44 ("x86/mm/pat: Emulate PAT when it is disabled")', PAT needs to support a case that PAT MSR is initialized with a non-default value. When pat_init() is called and PAT is disabled, it initializes PAT table with the BIOS default value.
http://linux-kernel.2935.n7.nabble.com/patch-00-13-x86-PAT-support-updated-v3-td272791.html
[patch 00/13] x86: PAT support updated - v3 ... (PAT) support on x86. There have been few changes based on comments for earlier patches and also issues that was seen while the earlier patchset was in mm. The main changes include: * Unlike earlier patchset, ...
https://devtalk.nvidia.com/default/topic/1028805/unix-graphics-announcements-and-news/-linux-solaris-and-freebsd-driver-340-106-legacy-for-geforce-8-and-9-series-/
To optimize stores to memory, nvidia.ko contains support for configuring the CPU's PAT registers, as a fallback for Linux kernels that predate kernel native PAT support. On any recent kernel with CONFIG_X86_PAT enabled, the driver will detect that setup has already been done and skip its PAT …
http://kernelnewbies.org/Linux_2_6_26
1.5. x86 PAT support. PAT (Page Attribute Table) is a feature found in x86 processors that allows for setting the memory attribute at the page level granularity. PAT is complementary to the MTRR settings which allows for setting of memory types over physical address ranges.
http://linux-kernel.2935.n7.nabble.com/PATCH-V4-0-3-x86-Full-support-of-PAT-td969590.html
[PATCH V4 0/3] x86: Full support of PAT. The x86 architecture offers via the PAT (Page Attribute Table) a way to specify different caching modes in page table entries. The PAT MSR contains 8 entries...
http://lkml.iu.edu/hypermail/linux/kernel/0903.2/01917.html
Add struct page array pointer to cpa struct and CPA_PAGES_ARRAY. With that we can add change_page_attr_set_clr() a parameter to pass sruct page
https://www.nvidia.com/Download/driverResults.aspx/130042/en-us
To optimize stores to memory, nvidia.ko contains support for configuring the CPU's PAT registers, as a fallback for Linux kernels that predate kernel native PAT support. On any recent kernel with CONFIG_X86_PAT enabled, the driver will detect that setup has already been done and skip its PAT …
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