[Intel-gfx] [RFC PATCH 3/8] drm/i915: add the vgt implementation of MMIO/GTT mediations

[Tian, Kevin]

> From: Song, Jike
> Sent: Tuesday, September 30, 2014 3:06 AM
> 
> vgt mediates GPU operations from host i915, in the same way as
> mediating GPU operations from normal VMs. This way vgt can
> have centralized management about sharing among host and other
> VMs. To achieve that, we add a hook in critical wrapper interfaces
> (MMIO/GTT).
> 
> This patch only adds the MMIO/GTT accessing functions, without
> changing the existing i915 MMIO/GTT access behaviors.
> 
> Signed-off-by: Jike Song <jike.song at intel.com>
> ---
>  drivers/gpu/drm/i915/i915_vgt.h |  21 ++++++++
>  drivers/gpu/drm/i915/vgt/vgt.c  | 105
> ++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 126 insertions(+)
> 

...

> +void i915_vgt_record_priv(struct drm_i915_private *priv)
> +{
> +	dev_priv = priv;
> +}
> --

Suppose above can be carried in i915_start_vgt, instead of adding
a new interface?

Thanks
Kevin