[RFC Patch 08/19] ACPI: Add prefetch decoding to the address space parser

From: Jiang Liu
Date: Wed Jan 07 2015 - 21:34:17 EST


From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

Add support of PREFETCH attributre to ACPI address space and extended
address space parser.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
---
drivers/acpi/resource.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index a56a64164410..abe3a29ad802 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -200,6 +200,9 @@ static bool acpi_decode_space(struct resource *res,
if (base->producer_consumer == ACPI_PRODUCER)
res->flags |= IORESOURCE_WINDOW;

+ if (base->info.mem.caching == ACPI_PREFETCHABLE_MEMORY)
+ res->flags |= IORESOURCE_PREFETCH;
+
return !(res->flags & IORESOURCE_DISABLED);
}

--
1.7.10.4

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