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Message-id: <Pine.LNX.4.64.0702190430470.26450@montezuma.fsmlabs.com> Date: Mon, 19 Feb 2007 04:32:46 -0800 (PST) From: Zwane Mwaikambo <zwane@...radead.org> To: Andi Kleen <ak@...e.de> Cc: Andrew Morton <akpm@...ux-foundation.org>, Linux Kernel <linux-kernel@...r.kernel.org>, Tobias Hain <tobias.hain@....de>, "H. Peter Anvin" <hpa@...or.com> Subject: Re: [PATCH] Don't probe for DDC on VBE1.2 On Mon, 19 Feb 2007, Andi Kleen wrote: > > > I tested the x86_64 VBE3 case (similar to Andrew's VAIO), so we just need > > a VBE1.2 on x86_64 test. > > Does this mean you want to have an updated patch or not? Nope, i'm happy with the last patch i sent (below to reconfirm). Thanks Index: linux-2.6.20-mm1/arch/i386/boot/video.S =================================================================== RCS file: /home/cvsroot/linux-2.6.20-mm1/arch/i386/boot/video.S,v retrieving revision 1.1.1.1 diff -u -p -B -r1.1.1.1 video.S --- linux-2.6.20-mm1/arch/i386/boot/video.S 15 Feb 2007 17:35:57 -0000 1.1.1.1 +++ linux-2.6.20-mm1/arch/i386/boot/video.S 17 Feb 2007 08:29:11 -0000 @@ -571,6 +571,16 @@ setr1: lodsw jmp _m_s check_vesa: +#ifdef CONFIG_FIRMWARE_EDID + leaw modelist+1024, %di + movw $0x4f00, %ax + int $0x10 + cmpw $0x004f, %ax + jnz setbad + + movw 4(%di), %ax + movw %ax, vbe_version +#endif leaw modelist+1024, %di subb $VIDEO_FIRST_VESA>>8, %bh movw %bx, %cx # Get mode information structure @@ -1945,6 +1955,9 @@ store_edid: rep stosl + cmpw $0x0200, vbe_version # only do EDID on >= VBE2.0 + jl no_edid + pushw %es # save ES xorw %di, %di # Report Capability pushw %di @@ -1987,6 +2000,7 @@ do_restore: .byte 0 # Screen contents al svga_prefix: .byte VIDEO_FIRST_BIOS>>8 # Default prefix for BIOS modes graphic_mode: .byte 0 # Graphic mode with a linear frame buffer dac_size: .byte 6 # DAC bit depth +vbe_version: .word 0 # VBE bios version # Status messages keymsg: .ascii "Press <RETURN> to see video modes available, " Index: linux-2.6.20-mm1/arch/x86_64/boot/video.S =================================================================== RCS file: /home/cvsroot/linux-2.6.20-mm1/arch/x86_64/boot/video.S,v retrieving revision 1.1.1.1 diff -u -p -B -r1.1.1.1 video.S --- linux-2.6.20-mm1/arch/x86_64/boot/video.S 15 Feb 2007 17:36:18 -0000 1.1.1.1 +++ linux-2.6.20-mm1/arch/x86_64/boot/video.S 17 Feb 2007 08:29:11 -0000 @@ -571,6 +571,16 @@ setr1: lodsw jmp _m_s check_vesa: +#ifdef CONFIG_FIRMWARE_EDID + leaw modelist+1024, %di + movw $0x4f00, %ax + int $0x10 + cmpw $0x004f, %ax + jnz setbad + + movw 4(%di), %ax + movw %ax, vbe_version +#endif leaw modelist+1024, %di subb $VIDEO_FIRST_VESA>>8, %bh movw %bx, %cx # Get mode information structure @@ -1945,6 +1955,9 @@ store_edid: rep stosl + cmpw $0x0200, vbe_version # only do EDID on >= VBE2.0 + jl no_edid + pushw %es # save ES xorw %di, %di # Report Capability pushw %di @@ -1987,6 +2000,7 @@ do_restore: .byte 0 # Screen contents al svga_prefix: .byte VIDEO_FIRST_BIOS>>8 # Default prefix for BIOS modes graphic_mode: .byte 0 # Graphic mode with a linear frame buffer dac_size: .byte 6 # DAC bit depth +vbe_version: .word 0 # VBE bios version # Status messages keymsg: .ascii "Press <RETURN> to see video modes available, " - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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