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Message-ID: <20070509085434.GA13712@mailshack.com>
Date: Wed, 9 May 2007 10:54:34 +0200
From: Alexander van Heukelum <heukelum@...lshack.com>
To: "Antonino A. Daplas" <adaplas@...il.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, Andi Kleen <ak@...e.de>,
"H. Peter Anvin" <hpa@...or.com>,
lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Make bootsector stub 16-bit-only (i386)
On Wed, May 09, 2007 at 08:04:07AM +0800, Antonino A. Daplas wrote:
> On Tue, 2007-05-08 at 20:32 +0200, Alexander van Heukelum wrote:
> > diff --git a/arch/i386/boot/bootsect.S b/arch/i386/boot/bootsect.S
> > diff --git a/arch/i386/boot/video.S b/arch/i386/boot/video.S
> > index 8143c95..8e404cb 100644
> > --- a/arch/i386/boot/video.S
> > +++ b/arch/i386/boot/video.S
> > @@ -95,7 +95,8 @@ #define PARAM_VESAPM_SEG 0x2e
> > #define PARAM_VESAPM_OFF 0x30
> > #define PARAM_LFB_PAGES 0x32
> > #define PARAM_VESA_ATTRIB 0x34
> > -#define PARAM_CAPABILITIES 0x36
> > +#define PARAM_VESA_PAD 0x36
> > +#define PARAM_CAPABILITIES 0x38
> >
> > /* Define DO_STORE according to CONFIG_VIDEO_RETAIN */
> > #ifdef CONFIG_VIDEO_RETAIN
> > diff --git a/include/linux/screen_info.h b/include/linux/screen_info.h
> > index b02308e..0a2e892 100644
> > --- a/include/linux/screen_info.h
> > +++ b/include/linux/screen_info.h
> > @@ -41,8 +41,8 @@ struct screen_info {
> > u16 vesapm_off; /* 0x30 */
> > u16 pages; /* 0x32 */
> > u16 vesa_attributes; /* 0x34 */
> > - u32 capabilities; /* 0x36 */
> > - /* 0x3a -- 0x3b reserved for future expansion */
> > + u16 vesa_pad; /* 0x36 */
> > + u32 capabilities; /* 0x38 */
> > /* 0x3c -- 0x3f micro stack for relocatable kernels */
> > };
> >
>
> You would also need this minor change.
>
> Tony
>
> diff --git a/arch/i386/boot/video.S b/arch/i386/boot/video.S
> index 5e2280c..2d637d1 100644
> --- a/arch/i386/boot/video.S
> +++ b/arch/i386/boot/video.S
> @@ -95,7 +95,7 @@ #define PARAM_VESAPM_SEG 0x2e
> #define PARAM_VESAPM_OFF 0x30
> #define PARAM_LFB_PAGES 0x32
> #define PARAM_VESA_ATTRIB 0x34
> -#define PARAM_CAPABILITIES 0x36
> +#define PARAM_CAPABILITIES 0x38
>
> /* Define DO_STORE according to CONFIG_VIDEO_RETAIN */
> #ifdef CONFIG_VIDEO_RETAIN
Hi!
I'm making coffee now. I just don't see what I missed? Maybe you were
led astray by the new PARAM_VESA_PAD I added?
Greetings,
Alexander
-
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