>
> From: Ville Syrjälä <ville.syrj...@linux.intel.com>
>
> Instead of looking at plane->fb let's look at the proper new
> plane state.
>
> Not that the code makes a ton of sense. It's only going through the
> crtcs in the atomic state, so assuming not all of them are included
> we're not even calculating the total bandwidth here. Also we're
> not considering whether each crtc is actually enabled or not.
>
> Cc: Thomas Hellstrom <thellst...@vmware.com>
> Cc: Sinclair Yeh <s...@vmware.com>
> Cc: VMware Graphics <linux-graphics-maintai...@vmware.com>
> Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
> Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
> ---
> drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 10 +++++++---
> 1 file changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> index 6728c6247b4b..a2a796b4cc23 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
> @@ -1536,9 +1536,13 @@ vmw_kms_atomic_check_modeset(struct
> drm_device *dev,
> unsigned long requested_bb_mem = 0;
>
> if (dev_priv->active_display_unit ==
> vmw_du_screen_target) {
> - if (crtc->primary->fb) {
> - int cpp = crtc->primary->fb->pitches[0] /
> - crtc->primary->fb->width;
> + struct drm_plane *plane = crtc->primary;
> + struct drm_plane_state *plane_state;
> +
> + plane_state =
> drm_atomic_get_new_plane_state(state, plane);
> +
> + if (plane_state && plane_state->fb) {
> + int cpp = plane_state->fb->format->cpp[0];
Hi Ville,
Thanks for the patch, recently I have done some refactoring of this code area
which is no yet sent to dri-devel. But the refactored code eliminated the need
to look the fb
https://cgit.freedesktop.org/mesa/vmwgfx/commit/?id=c54cdb6549b7d1c04ff61e639fc0e6de0dcc1ed6
There is still some future work to be done in this area.
>
> requested_bb_mem += crtc->mode.hdisplay
> * cpp *
> crtc->mode.vdisplay;
> --
> 2.16.1
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