drm/i915: Split GGTT initialisation between probing and setup
authorChris Wilson <chris@chris-wilson.co.uk>
Thu, 4 Aug 2016 06:52:21 +0000 (07:52 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Thu, 4 Aug 2016 07:09:13 +0000 (08:09 +0100)
commit0088e522ddcb2cb5763ad85f9db2c2b473843d8d
treef84652af8a1bc42e32f2514fe64995bacc568f81
parent894eeecc1e3b47ef115e252ec58eff7ec174e7ef
drm/i915: Split GGTT initialisation between probing and setup

In order to handle conflicting drivers (i.e. vgacon) having a different
setup of hardware, we have to remove those other drivers before we try
to setup our own mappings. This requires us to split GGTT initialisation
between probing for the hardware location (part of the PCI BAR) and
later establishing the kernel resources for it.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470293567-10811-2-git-send-email-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_drv.c
drivers/gpu/drm/i915/i915_gem_gtt.c
drivers/gpu/drm/i915/i915_gem_gtt.h