[Intel-gfx] [PATCH 1/2 v2] intel: Export total subslice and EU counts

[Damien Lespiau]

On Mon, Mar 09, 2015 at 04:13:03PM -0700, jeff.mcgee at intel.com wrote:
> From: Jeff McGee <jeff.mcgee at intel.com>
> 
> Update kernel interface with new I915_GETPARAM ioctl entries for
> subslice total and EU total. Add a wrapping function for each
> parameter. Userspace drivers need these values when constructing
> GPGPU commands. This kernel query method is intended to replace
> the PCI ID-based tables that userspace drivers currently maintain.
> The kernel driver can employ fuse register reads as needed to
> ensure the most accurate determination of GT config attributes.
> This first became important with Cherryview in which the config
> could differ between devices with the same PCI ID.
> 
> The kernel detection of these values is device-specific. Userspace
> drivers should continue to maintain ID-based tables for older
> devices which return ENODEV when using this query.
> 
> v2: remove unnecessary include of <stdbool.h> and increment the
>     I915_GETPARAM indices to match updated kernel patch.
> 
> For: VIZ-4636
> Signed-off-by: Jeff McGee <jeff.mcgee at intel.com>

Pushed to libdrm.

-- 
Damien