From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 2 Feb 2015 02:42:53 +0000 (+0800)
Subject: ACPI: Add prefetch decoding to the address space parser
X-Git-Tag: firefly_0821_release~176^2~2247^2~1^5~17
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fcb29bbcd5404494eb46ad24908a4843b5a32060;p=firefly-linux-kernel-4.4.55.git

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>
---

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);
 }