[Intel-gfx] [PATCH] drm/i195/bxt: Add A1 stepping for Broxton

[Imre Deak]

On pe, 2015-03-20 at 09:29 +0000, Nick Hoath wrote:
> This stepping isn't listed separately in the specs, so needs confirmation.
> 
> Signed-off-by: Nick Hoath <nicholas.hoath at intel.com>
> ---
>  drivers/gpu/drm/i915/i915_drv.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index eec271a..68fb41a 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -2329,6 +2329,7 @@ struct drm_i915_cmd_table {
>  #define SKL_REVID_E0		(0x4)
>  
>  #define BXT_REVID_A0		(0x0)
> +#define BXT_REVID_A1		(0x1)

The above mapping is for the SOC RevID, but I think for all our purposes
(WAs) we should check the GT/Display RevID. The A1 GT/Display RevID
doesn't seem to exist, only A0 is defined with all of 0,1,2 RevIDs
mapping to A0.

>  #define BXT_REVID_B0		(0x3)
>  #define BXT_REVID_C0		(0x6)
>