drm/i915/gvt: decouple check_vgpu() from uncore_init()
authorDaniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Thu, 20 Jun 2019 01:00:21 +0000 (18:00 -0700)
committerTvrtko Ursulin <tvrtko.ursulin@intel.com>
Thu, 20 Jun 2019 15:34:57 +0000 (16:34 +0100)
commit9e138ea1bdb1d1c1f1c0b74f022f886196abf625
tree32360507d2aa1cd962d82689d7b258ede68b404e
parentf833cdb06bf7cea6827d67b73cb24da335b70266
drm/i915/gvt: decouple check_vgpu() from uncore_init()

With multiple uncore to initialize (GT vs Display), it makes little
sense to have the vgpu_check inside uncore_init(). We also have
a catch-22 scenario where the uncore is required to read the vgpu
capabilities while the vgpu capabilities are required to decide if
we need to initialize forcewake support. To remove this circular
dependency, we can perform the required MMIO access by mmapping just
the vgtif shared page in mmio space and use raw accessors.

v2: rename check_vgpu to detect_vgpu (Chris)

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190620010021.20637-7-daniele.ceraolospurio@intel.com
drivers/gpu/drm/i915/i915_drv.c
drivers/gpu/drm/i915/i915_pvinfo.h
drivers/gpu/drm/i915/i915_vgpu.c
drivers/gpu/drm/i915/i915_vgpu.h
drivers/gpu/drm/i915/intel_uncore.c