From fcfe67c3b2b3391a8131eb26cc546a9afaa28822 Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Fri, 22 Mar 2013 22:23:05 -0500 Subject: haswell: add option to mark graphics memory write-combining. The graphics memory can be accessed in a faster manner by setting it to write-combing mode. Add an option to enable write-combining for the graphics memory. Change-Id: I797fcd9f0dfb074f9e45476773acbfe614eb4b0a Signed-off-by: Aaron Durbin Reviewed-on: http://review.coreboot.org/2893 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/northbridge/intel/haswell/Kconfig | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'src/northbridge/intel/haswell/Kconfig') diff --git a/src/northbridge/intel/haswell/Kconfig b/src/northbridge/intel/haswell/Kconfig index f68978040f..12f865a2e3 100644 --- a/src/northbridge/intel/haswell/Kconfig +++ b/src/northbridge/intel/haswell/Kconfig @@ -82,6 +82,14 @@ config DCACHE_RAM_ROMSTAGE_STACK_SIZE The amount of anticipated stack usage from the data cache during pre-ram rom stage execution. +config MARK_GRAPHICS_MEM_WRCOMB + bool "Mark graphics memory as write-combining." + default n + help + The graphics performance may increase if the graphics + memory is set as write-combining cache type. This option + enables marking the graphics memory as write-combining. + config HAVE_MRC bool "Add a System Agent binary" help -- cgit v1.2.3