linux-kernel - Re: [Nouveau] [PATCH] nouveau: Do not use nva3 engine for 0xaf chipset

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Message-ID: <20120805025057.GA10386@turiel.redhat.com>
Date:	Sun, 5 Aug 2012 12:50:57 +1000
From:	Ben Skeggs <skeggsb@...il.com>
To:	Henrik Rydberg <rydberg@...omail.se>
Cc:	Ben Skeggs <bskeggs@...hat.com>, nouveau@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [Nouveau] [PATCH] nouveau: Do not use nva3 engine for 0xaf
 chipset

On Sat, Aug 04, 2012 at 08:00:45AM +0200, Henrik Rydberg wrote:
> The nva3 copy engine exhibits random memory corruption in at least one
> case, the GeForce 320M (nv50, 0xaf) in the MacBookAir3,1.  This patch
> omits creating the engine for the specific chipset, falling back to
> M2MF, which kills the symptoms.
I've pushed this (with slightly modified commit message) to nouveau git.

I'll get it to Linus' tree in a future -fixes merge.

Thanks,
Ben.

> 
> Signed-off-by: Henrik Rydberg <rydberg@...omail.se>
> ---
> Hi Ben,
> 
> this patch is still needed in 3.6-rc1, so perhaps we should apply it
> after all. I have been running it without problems for a long time
> now.
> 
> Thanks,
> Henrik
> 
>  drivers/gpu/drm/nouveau/nouveau_state.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
> index 1cdfd6e..1866dbb 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_state.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_state.c
> @@ -731,7 +731,6 @@ nouveau_card_init(struct drm_device *dev)
>  			case 0xa3:
>  			case 0xa5:
>  			case 0xa8:
> -			case 0xaf:
>  				nva3_copy_create(dev);
>  				break;
>  			}
> -- 
> 1.7.11.4
> 
> _______________________________________________
> Nouveau mailing list
> Nouveau@...ts.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/nouveau
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