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authorLen Brown <len.brown@intel.com>2011-01-07 01:46:40 +0100
committerLen Brown <len.brown@intel.com>2011-01-07 01:04:19 -0500
commit6d5bbf00d251cc73223a71422d69e069dc2e0b8d (patch)
tree78088b56bbc95caff8cfa574941710e0c065b596 /drivers/acpi/sleep.c
parentca9b600be38c73b7d25acfb8b7e4e9a9e941d881 (diff)
ACPI: Use ioremap_cache()
Although the temporary boot-time ACPI table mappings were set up with CPU caching enabled, the permanent table mappings and AML run-time region memory accesses were set up with ioremap(), which on x86 is a synonym for ioremap_nocache(). Changing this to ioremap_cache() improves performance as seen when accessing the tables via acpidump, or /sys/firmware/acpi/tables. It should also improve AML run-time performance. No change on ia64. Reported-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'drivers/acpi/sleep.c')
0 files changed, 0 insertions, 0 deletions