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authorThomas Gleixner <tglx@linutronix.de>2015-02-02 05:42:53 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-02-04 00:27:19 +0300
commitfcb29bbcd5404494eb46ad24908a4843b5a32060 (patch)
tree3c3bed1a52c2f002bd06c21986fe99eb009c008e /drivers/acpi
parent72e26b0d487fc494f40aa61e10a0757791e62e36 (diff)
downloadlinux-fcb29bbcd5404494eb46ad24908a4843b5a32060.tar.xz
ACPI: Add prefetch decoding to the address space parser
Add support of PREFETCH attributre to ACPI address space and extended address space parser. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/resource.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 15d17937c431..7ce00a63f695 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -200,6 +200,9 @@ static bool acpi_decode_space(struct resource *res,
if (addr->producer_consumer == ACPI_PRODUCER)
res->flags |= IORESOURCE_WINDOW;
+ if (addr->info.mem.caching == ACPI_PREFETCHABLE_MEMORY)
+ res->flags |= IORESOURCE_PREFETCH;
+
return !(res->flags & IORESOURCE_DISABLED);
}