linux-kernel - Re: [PATCH] vt_buffer: drop console buffer copying optimisations

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Date:	Thu, 5 Feb 2015 11:35:51 +0000
From:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Dave Airlie <airlied@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	dri-devel@...ts.sf.net,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Tomi Valkeinen <tomi.valkeinen@...com>
Subject: Re: [PATCH] vt_buffer: drop console buffer copying optimisations

> If I'm not mistaken, that would be as simple as adding
> 
>     #define VT_BUF_HAVE_RW.
>     #define scr_writew(val, addr) (*(addr) = (val))
>     #define scr_readw(addr) (*(addr))
> 
> to arch/x86/include/asm/vga.h.

and stick an

#if defined (CONFIG_SUPPORT_SHITE_VGA_ADAPTERS)

#endif

around that and its sorted as an option everyone can leave off but the
afflicted.

Alan
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