From: Matthew Garrett <mjg@redhat.com>
Date: Mon, 8 Aug 2011 16:21:16 +0000 (+0000)
Subject: drm/radeon: re-POST the asic on Apple hardware when booted via EFI
X-Git-Tag: v3.1-rc3~40^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bcc65fd8e929a9d9d34d814d6efc1d2793546922;p=pandora-kernel.git

drm/radeon: re-POST the asic on Apple hardware when booted via EFI

At least some Apples program the GPU into a state that wedges the engine
once userspace starts trying to perform accelerated operations. Executing
the Atom init scripts gets the hardware back into a working state. The
same hardware works fine when booted via BIOS emulation, so let's just
execute the init scripts on Apples when we're using EFI.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

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