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authorHelge Deller <deller@gmx.de>2015-12-12 18:22:03 +0100
committerHelge Deller <deller@gmx.de>2016-01-12 22:03:36 +0100
commitfc6325750348272d10a8e39adb9fc0e89a667774 (patch)
tree6325d652427aa9928459319badd834d45836b095 /arch/parisc/kernel/processor.c
parentparisc: Initialize PCI bridge cache line and default latency (diff)
downloadlinux-fc6325750348272d10a8e39adb9fc0e89a667774.tar.xz
linux-fc6325750348272d10a8e39adb9fc0e89a667774.zip
parisc: Reduce overhead of parisc_requires_coherency()
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/kernel/processor.c')
-rw-r--r--arch/parisc/kernel/processor.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index b68d977ce30f..e81ccf1716e9 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -44,6 +44,10 @@
struct system_cpuinfo_parisc boot_cpu_data __read_mostly;
EXPORT_SYMBOL(boot_cpu_data);
+#ifdef CONFIG_PA8X00
+int _parisc_requires_coherency __read_mostly;
+EXPORT_SYMBOL(_parisc_requires_coherency);
+#endif
DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data);
@@ -277,8 +281,12 @@ void __init collect_boot_cpu_data(void)
boot_cpu_data.cpu_type = parisc_get_cpu_type(boot_cpu_data.hversion);
boot_cpu_data.cpu_name = cpu_name_version[boot_cpu_data.cpu_type][0];
boot_cpu_data.family_name = cpu_name_version[boot_cpu_data.cpu_type][1];
-}
+#ifdef CONFIG_PA8X00
+ _parisc_requires_coherency = (boot_cpu_data.cpu_type == mako) ||
+ (boot_cpu_data.cpu_type == mako2);
+#endif
+}
/**