[RFC PATCH v2 0/4] drm driver for VED in Intel GPU

[Yao Cheng <yao.cheng@intel.com>]

drm/ipvr is a new GEM driver for VED (PowerVR's VPU integrated in Intel GPU), which
extends video decoding capability.
Two new Kconfig added for building ipvr driver:
  CONFIG_DRM_IPVR: Build option for ipvr module
  CONFIG_DRM_IPVR_EC: Experimental feature of error concealment

The driver name "ipvr" means the PowerVR's core wrapped by Intel. The PowerVR VPUs
are also integrated by non-i915 platforms such as GMA500, so we keep ipvr driver
and i915 driver separated and independent to each other. To achieve this we do
the minimum change in i915: i915_ved.c added for setting up the bridge between VED
and i915, kerneldoc also updated.

User mode drm helper "libdrm_ipvr.so" and simple ioctl/decode test are included.

one test script "drv_module_reload" in i-g-t also updated to support ipvr loading
and unloading. Due to restriction in Linux platform device model, we have to
manually unload ipvr before unloading i915.

Yao Cheng (4):
  [1/4] drm/i915: add i915_ved.c to setup bridge for VED
  [2/4] drm/ipvr: drm driver for VED
  [3/4] libdrm/ipvr: user mode helper for ipvr drm driver
  [4/4] i-g-t: tests/drv_module_reload: add ipvr support

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1.9.1