[Intel-gfx] [RFC PATCH 13/42] drm/i915: support object clearing via blitter engine

[Chris Wilson]

Quoting Matthew Auld (2019-02-14 14:57:11)
> diff --git a/drivers/gpu/drm/i915/intel_gpu_commands.h b/drivers/gpu/drm/i915/intel_gpu_commands.h
> index b96a31bc1080..f74ff1d095c2 100644
> --- a/drivers/gpu/drm/i915/intel_gpu_commands.h
> +++ b/drivers/gpu/drm/i915/intel_gpu_commands.h
> @@ -175,6 +175,7 @@
>  #define GFX_OP_DRAWRECT_INFO_I965  ((0x7900<<16)|0x2)
>  
>  #define COLOR_BLT_CMD                  (2<<29 | 0x40<<22 | (5-2))
> +#define XY_COLOR_BLT_CMD               (2<<29 | 0x50<<22 | (7-2))

Remove the dword lengths here. The XY commands are not gen8 specific,
and construction is much neater if we just add the pktlen on writing the
cmd.

>  #define SRC_COPY_BLT_CMD               ((2<<29)|(0x43<<22)|4)
>  #define XY_SRC_COPY_BLT_CMD            ((2<<29)|(0x53<<22)|6)
>  #define XY_MONO_SRC_COPY_IMM_BLT       ((2<<29)|(0x71<<22)|5)