diff options
| author | Bob Moore <robert.moore@intel.com> | 2009-10-22 03:11:11 +0200 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-11-05 23:01:58 +0100 |
| commit | d410ee5109a1633a686a5663c6743a92e1181f9b (patch) | |
| tree | 02451f4ccfd8307f41181360d55b1126eea6d1bf /drivers/acpi/acpica/acconfig.h | |
| parent | Linux 2.6.32-rc6 (diff) | |
| download | linux-d410ee5109a1633a686a5663c6743a92e1181f9b.tar.xz linux-d410ee5109a1633a686a5663c6743a92e1181f9b.zip | |
ACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine."
Ensure that memory mappings created for operation regions
do not cross page boundaries. Crossing a page boundary
while mapping regions can cause warnings if the pages have different attributes.
Such regions are probably BIOS bugs, and this is the workaround.
http://bugzilla.kernel.org/show_bug.cgi?id=14445
[Kernel summit hacking hour]
Signed-off-by: Bob Moore <robert.moore@intel.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/acconfig.h')
| -rw-r--r-- | drivers/acpi/acpica/acconfig.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h index 8e679ef5b231..a4471e3d3853 100644 --- a/drivers/acpi/acpica/acconfig.h +++ b/drivers/acpi/acpica/acconfig.h @@ -103,9 +103,9 @@ #define ACPI_MAX_REFERENCE_COUNT 0x1000 -/* Size of cached memory mapping for system memory operation region */ +/* Default page size for use in mapping memory for operation regions */ -#define ACPI_SYSMEM_REGION_WINDOW_SIZE 4096 +#define ACPI_DEFAULT_PAGE_SIZE 4096 /* Must be power of 2 */ /* owner_id tracking. 8 entries allows for 255 owner_ids */ |