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grub/grub-core/video/i386/pc
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Colin Watson cfe456dc03 Use write-combining MTRR to speed up video with buggy BIOSes. 
* grub-core/video/i386/pc/vbe.c (framebuffer): New member mtrr.
	(cpuid): New define.
	(rdmsr): Likewise.
	(wrmsr): Likewise.
	(mtrr_base): Likewise.
	(mtrr_mask): Likewise.
	(grub_vbe_enable_mtrr_entry): New function.
	(grub_vbe_enable_mtrr): Likewise.
	(grub_vbe_disable_mtrr): Likewise.
	(grub_vbe_bios_set_display_start): Disable mtrr when handing the
	control off to BIOS.
	(grub_video_vbe_init): Fill mtrr.
	(grub_video_vbe_fini): Disable mtrr.
	(grub_video_vbe_get_info_and_fini): Likewise.
	(grub_video_vbe_setup): Enable mtrr.
2012-02-27 22:31:51 +01:00
..
vbe.c Use write-combining MTRR to speed up video with buggy BIOSes. 2012-02-27 22:31:51 +01:00
vga.c Coreboot video support. 2011-06-27 08:54:55 +02:00