[Intel-gfx] [PATCH 5/5] drm/i915: Use intel_fb_gtt_offset() also for gen2/3 primary plane

[Chris Wilson]

On Mon, Nov 07, 2016 at 10:20:57PM +0200, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> The code to determine the primary plane offset for gen2/3 looks
> different than the code for gen4+, but in fact it's doing the same
> thing. Let's make it uniform. Allows us to eliminate the 'obj' from
> the list of local variables as well.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/intel_display.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 817ed3f320f7..3d519d701e1c 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -3017,7 +3017,6 @@ static void i9xx_update_primary_plane(struct drm_plane *primary,
>  	struct drm_i915_private *dev_priv = to_i915(dev);
>  	struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
>  	struct drm_framebuffer *fb = plane_state->base.fb;
> -	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
>  	int plane = intel_crtc->plane;
>  	u32 linear_offset;
>  	u32 dspcntr;
> @@ -3112,8 +3111,11 @@ static void i9xx_update_primary_plane(struct drm_plane *primary,
>  			   intel_crtc->dspaddr_offset);
>  		I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
>  		I915_WRITE(DSPLINOFF(plane), linear_offset);
> -	} else
> -		I915_WRITE(DSPADDR(plane), i915_gem_object_ggtt_offset(obj, NULL) + linear_offset);
> +	} else {
> +		I915_WRITE(DSPADDR(plane),
> +			   intel_fb_gtt_offset(fb, rotation) +
> +			   intel_crtc->dspaddr_offset);

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

Though the reader might notice the same offset being passed to both gen4+
DSPSURF and gen3- DSPADDR, and might reasonably ask if they should be
sharing a variable.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre