openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

Documentation/powerpc: Fix path to the powerpc directory 

ppc -> powerpc

Signed-off-by: Thomas Waldecker <thomas.waldecker@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Thomas Waldecker 2012-12-27 04:07:27 +00:00 committed by Benjamin Herrenschmidt
parent bf99de36e4
commit d69f1d7fa1
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
Documentation/powerpc/cpu_features.txt
View File

@ -11,10 +11,10 @@ split instruction and data caches, and if the CPU supports the DOZE and NAP
sleep modes.
Detection of the feature set is simple. A list of processors can be found in
arch/ppc/kernel/cputable.c. The PVR register is masked and compared with each
value in the list. If a match is found, the cpu_features of cur_cpu_spec is
assigned to the feature bitmask for this processor and a __setup_cpu function
is called.
arch/powerpc/kernel/cputable.c. The PVR register is masked and compared with
each value in the list. If a match is found, the cpu_features of cur_cpu_spec
is assigned to the feature bitmask for this processor and a __setup_cpu
function is called.
C code may test 'cur_cpu_spec[smp_processor_id()]->cpu_features' for a
particular feature bit. This is done in quite a few places, for example
@ -51,6 +51,6 @@ should be used in the majority of cases.
The END_FTR_SECTION macros are implemented by storing information about this
code in the '__ftr_fixup' ELF section. When do_cpu_ftr_fixups
(arch/ppc/kernel/misc.S) is invoked, it will iterate over the records in
(arch/powerpc/kernel/misc.S) is invoked, it will iterate over the records in
__ftr_fixup, and if the required feature is not present it will loop writing
nop's from each BEGIN_FTR_SECTION to END_FTR_SECTION.