drm/nouveau: Reset AGP before running the init scripts.

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BIOS scripts usually make an attempt to reset the AGP controller,
however on some nv4x cards doing it properly involves switching FW off
and on: if we do that without updating the AGP bridge settings
accordingly (e.g. with the corresponding calls to agp_enable()) we
will be locking ourselves out of the card MMIO space. Do it from
nouveau_mem_reset_agp() before the init scripts are executed.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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This commit is contained in:

Francisco Jerez 2010-07-23 20:29:13 +02:00 • committed by Ben Skeggs

parent 8bded18955

commit e04d8e829d

3 changed files with 34 additions and 14 deletions

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4

drivers/gpu/drm/nouveau/nouveau_drv.c

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1

drivers/gpu/drm/nouveau/nouveau_drv.h

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43

drivers/gpu/drm/nouveau/nouveau_mem.c

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