diff options
author | Borislav Petkov <borislav.petkov@amd.com> | 2011-05-16 09:39:48 -0400 |
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committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-05-16 14:24:30 -0400 |
commit | eecaaba5b2e4ae762b4726fae2e3b22630e137ec (patch) | |
tree | c99a5089e3d766fb34e7a92abfb19305b6dbe9ab /Documentation/ABI/testing | |
parent | 42be450565b0fc4607fae3e3a7da038d367a23ed (diff) |
Documentation, ABI: Update L3 cache index disable text
Change contact person to AMD kernel mailing list, update text and
external references, drop "Users:" tag.
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Link: http://lkml.kernel.org/r/1305553188-21061-4-git-send-email-bp@amd64.org
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'Documentation/ABI/testing')
-rw-r--r-- | Documentation/ABI/testing/sysfs-devices-system-cpu | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 7564e88bfa43..e7be75b96e4b 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu | |||
@@ -183,21 +183,21 @@ Description: Discover and change clock speed of CPUs | |||
183 | to learn how to control the knobs. | 183 | to learn how to control the knobs. |
184 | 184 | ||
185 | 185 | ||
186 | What: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X | 186 | What: /sys/devices/system/cpu/cpu*/cache/index3/cache_disable_{0,1} |
187 | Date: August 2008 | 187 | Date: August 2008 |
188 | KernelVersion: 2.6.27 | 188 | KernelVersion: 2.6.27 |
189 | Contact: mark.langsdorf@amd.com | 189 | Contact: discuss@x86-64.org |
190 | Description: These files exist in every cpu's cache index directories. | 190 | Description: Disable L3 cache indices |
191 | There are currently 2 cache_disable_# files in each | 191 | |
192 | directory. Reading from these files on a supported | 192 | These files exist in every CPU's cache/index3 directory. Each |
193 | processor will return that cache disable index value | 193 | cache_disable_{0,1} file corresponds to one disable slot which |
194 | for that processor and node. Writing to one of these | 194 | can be used to disable a cache index. Reading from these files |
195 | files will cause the specificed cache index to be disabled. | 195 | on a processor with this functionality will return the currently |
196 | 196 | disabled index for that node. There is one L3 structure per | |
197 | Currently, only AMD Family 10h Processors support cache index | 197 | node, or per internal node on MCM machines. Writing a valid |
198 | disable, and only for their L3 caches. See the BIOS and | 198 | index to one of these files will cause the specificed cache |
199 | Kernel Developer's Guide at | 199 | index to be disabled. |
200 | http://support.amd.com/us/Embedded_TechDocs/31116-Public-GH-BKDG_3-28_5-28-09.pdf | 200 | |
201 | for formatting information and other details on the | 201 | All AMD processors with L3 caches provide this functionality. |
202 | cache index disable. | 202 | For details, see BKDGs at |
203 | Users: joachim.deguara@amd.com | 203 | http://developer.amd.com/documentation/guides/Pages/default.aspx |