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authorHuang, Ying <ying.huang@intel.com>2007-11-29 03:21:55 +0300
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-29 20:24:54 +0300
commit7c83172b98e569d9aabf947d8b3b089dadb2ff46 (patch)
tree674db31e73f5ae5f65e459455b63ac61ff5bff96 /drivers/video/Kconfig
parentf78ba15705a5ef36b55c4e3142724e2211cb1733 (diff)
downloadlinux-7c83172b98e569d9aabf947d8b3b089dadb2ff46.tar.xz
x86_64 EFI boot support: EFI frame buffer driver
This patch adds Graphics Output Protocol support to the kernel. UEFI2.0 spec deprecates Universal Graphics Adapter (UGA) protocol and only Graphics Output Protocol (GOP) is produced. Therefore, the boot loader needs to query the UEFI firmware with appropriate Output Protocol and pass the video information to the kernel. As a result of GOP protocol, an EFI framebuffer driver is needed for displaying console messages. The patch adds a EFI framebuffer driver. The EFI frame buffer driver in this patch is based on the Intel Mac framebuffer driver. The ELILO bootloader takes care of passing the video information as appropriate for EFI firmware. The framebuffer driver has been tested in i386 kernel and x86_64 kernel on EFI platform. Signed-off-by: Chandramouli Narayanan <mouli@linux.intel.com> Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@suse.de> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/Kconfig')
-rw-r--r--drivers/video/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 7d86e9eae915..5b3dbcfcda48 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -641,6 +641,17 @@ config FB_VESA
You will get a boot time penguin logo at no additional cost. Please
read <file:Documentation/fb/vesafb.txt>. If unsure, say Y.
+config FB_EFI
+ bool "EFI-based Framebuffer Support"
+ depends on (FB = y) && X86
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ help
+ This is the EFI frame buffer device driver. If the firmware on
+ your platform is UEFI2.0, select Y to add support for
+ Graphics Output Protocol for early console messages to appear.
+
config FB_IMAC
bool "Intel-based Macintosh Framebuffer Support"
depends on (FB = y) && X86 && EFI