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authorHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2009-12-14 19:23:03 +0100
committerHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2009-12-14 19:23:03 +0100
commit559300bc0ef7ccd541656f1189d38e7088389559 (patch)
treecd1682881ca4246e9c5a1e8632be4bdd9d9706c6 /tools/perf/design.txt
parentavr32: add two new at91 to cpu.h definition (diff)
parentLinux 2.6.32 (diff)
downloadlinux-559300bc0ef7ccd541656f1189d38e7088389559.tar.xz
linux-559300bc0ef7ccd541656f1189d38e7088389559.zip
Merge commit 'v2.6.32'
Conflicts: arch/avr32/mach-at32ap/include/mach/cpu.h
Diffstat (limited to 'tools/perf/design.txt')
-rw-r--r--tools/perf/design.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/design.txt b/tools/perf/design.txt
index f1946d107b10..fdd42a824c98 100644
--- a/tools/perf/design.txt
+++ b/tools/perf/design.txt
@@ -455,3 +455,6 @@ will need at least this:
If your architecture does have hardware capabilities, you can override the
weak stub hw_perf_event_init() to register hardware counters.
+
+Architectures that have d-cache aliassing issues, such as Sparc and ARM,
+should select PERF_USE_VMALLOC in order to avoid these for perf mmap().