lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Thu, 23 Jan 2014 11:23:30 -0800 From: Linus Torvalds <torvalds@...ux-foundation.org> To: Mikulas Patocka <mpatocka@...hat.com>, "linux-fbdev@...r.kernel.org" <linux-fbdev@...r.kernel.org>, Tomi Valkeinen <tomi.valkeinen@...com> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 4/10] atyfb: set FBINFO_READS_FAST Hmm. You're doing this for Matrix and now the aty driver. Maybe the problem is at the fbcon level? Depending on FBINFO_READS_FAST to decide whether you should scroll or rewrite sounds a bit silly: even if a device doesn't have fast reads, maybe it has a fast accelerated BLIT operation and scrolls quickly. Should the fbcon test perhaps be for FBINFO_READS_FAST _or_ the FBINFO_HWACCEL_COPYAREA bits? I dunno. I didn't actually check the ->bcopy implementations, maybe they don't use copyarea. So I'm just going by a general "this feels wrong" feeling.. Linus On Thu, Jan 23, 2014 at 10:18 AM, Mikulas Patocka <mpatocka@...hat.com> wrote: > Set FBINFO_READS_FAST so that the console code uses scrolling instead of > rewriting. This improves scrolling speed. -- 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/
Powered by blists - more mailing lists