On Fri, 2019-12-20 at 12:49 +0200, Imre Deak wrote:
> From: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
>
> intel_fill_fb_info() has grown quite large and wrapping the offset
> checks
> into a separate function makes the loop a bit easier to follow.
>
> v2: Skip the check for non-CCS planes. (Mika)
>
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
> Cc: Mika Kahola <mika.kahola@xxxxxxxxx>
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
> Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
Reviewed-by: Mika Kahola <mika.kahola@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 73 ++++++++++++----
> ----
> 1 file changed, 43 insertions(+), 30 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c
> b/drivers/gpu/drm/i915/display/intel_display.c
> index 9c27cf651e08..2665ea7300a0 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -2676,6 +2676,46 @@ static bool intel_plane_needs_remap(const
> struct intel_plane_state *plane_state)
> return stride > max_stride;
> }
>
> +static int
> +intel_fb_check_ccs_xy(struct drm_framebuffer *fb, int ccs_plane, int
> x, int y)
> +{
> + struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb);
> + int hsub = fb->format->hsub;
> + int vsub = fb->format->vsub;
> + int tile_width, tile_height;
> + int ccs_x, ccs_y;
> + int main_x, main_y;
> +
> + if (!is_ccs_modifier(fb->modifier) || ccs_plane != 1)
> + return 0;
> +
> + intel_tile_dims(fb, 1, &tile_width, &tile_height);
> +
> + tile_width *= hsub;
> + tile_height *= vsub;
> +
> + ccs_x = (x * hsub) % tile_width;
> + ccs_y = (y * vsub) % tile_height;
> + main_x = intel_fb->normal[0].x % tile_width;
> + main_y = intel_fb->normal[0].y % tile_height;
> +
> + /*
> + * CCS doesn't have its own x/y offset register, so the intra
> CCS tile
> + * x/y offsets must match between CCS and the main surface.
> + */
> + if (main_x != ccs_x || main_y != ccs_y) {
> + DRM_DEBUG_KMS("Bad CCS x/y (main %d,%d ccs %d,%d) full
> (main %d,%d ccs %d,%d)\n",
> + main_x, main_y,
> + ccs_x, ccs_y,
> + intel_fb->normal[0].x,
> + intel_fb->normal[0].y,
> + x, y);
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> static int
> intel_fill_fb_info(struct drm_i915_private *dev_priv,
> struct drm_framebuffer *fb)
> @@ -2706,36 +2746,9 @@ intel_fill_fb_info(struct drm_i915_private
> *dev_priv,
> return ret;
> }
>
> - if (is_ccs_modifier(fb->modifier) && i == 1) {
> - int hsub = fb->format->hsub;
> - int vsub = fb->format->vsub;
> - int tile_width, tile_height;
> - int main_x, main_y;
> - int ccs_x, ccs_y;
> -
> - intel_tile_dims(fb, i, &tile_width,
> &tile_height);
> - tile_width *= hsub;
> - tile_height *= vsub;
> -
> - ccs_x = (x * hsub) % tile_width;
> - ccs_y = (y * vsub) % tile_height;
> - main_x = intel_fb->normal[0].x % tile_width;
> - main_y = intel_fb->normal[0].y % tile_height;
> -
> - /*
> - * CCS doesn't have its own x/y offset
> register, so the intra CCS tile
> - * x/y offsets must match between CCS and the
> main surface.
> - */
> - if (main_x != ccs_x || main_y != ccs_y) {
> - DRM_DEBUG_KMS("Bad CCS x/y (main %d,%d
> ccs %d,%d) full (main %d,%d ccs %d,%d)\n",
> - main_x, main_y,
> - ccs_x, ccs_y,
> - intel_fb->normal[0].x,
> - intel_fb->normal[0].y,
> - x, y);
> - return -EINVAL;
> - }
> - }
> + ret = intel_fb_check_ccs_xy(fb, i, x, y);
> + if (ret)
> + return ret;
>
> /*
> * The fence (if used) is aligned to the start of the
> object
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