[Intel-gfx] [PATCH 04/21] drm/i915: introduce page_sizes field to dev_info

[Chris Wilson]

Quoting Matthew Auld (2017-09-22 18:32:35)
> In preparation for huge gtt pages expose page_sizes as part of the
> device info, to indicate the page sizes supported by the HW.  Currently
> only 4K is supported.
> 
> v2: s/page_size_mask/page_sizes/
> 
> Signed-off-by: Matthew Auld <matthew.auld at intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/i915_drv.h                  |  1 +
>  drivers/gpu/drm/i915/i915_gem_gtt.h              |  7 ++++++-
>  drivers/gpu/drm/i915/i915_pci.c                  | 20 ++++++++++++++++++++
>  drivers/gpu/drm/i915/selftests/mock_gem_device.c |  3 +++
>  4 files changed, 30 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index b59714f0c1bf..869e46306c49 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -862,6 +862,7 @@ struct intel_device_info {
>         u8 gt; /* GT number, 0 if undefined */
>         u8 ring_mask; /* Rings supported by the HW */
>         u8 num_rings;
> +       unsigned int page_sizes; /* page sizes supported by the HW */

Is there a naturally aligned spot we can put this? Eh, the struct is a
mess.

Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris