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Commit e6db9579 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/kms/nv50: skip core channel cursor update on position-only changes 



The DRM core used to only call prepare_fb/cleanup_fb() when a plane's
framebuffer changed, which achieved the desired effect.

It's apparently now up to the driver to decide on its own.

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org [4.11+]
parent 36601c2b

drivers/gpu/drm/nouveau/nv50_display.c

+7 −3
Original line number Diff line number Diff line
@@ -1119,10 +1119,14 @@ static void 
nv50_curs_prepare(struct nv50_wndw *wndw, struct nv50_head_atom *asyh,

		  struct nv50_wndw_atom *asyw)

{

	asyh->curs.handle = nv50_disp(wndw->plane.dev)->mast.base.vram.handle;

	asyh->curs.offset = asyw->image.offset;

	u32 handle = nv50_disp(wndw->plane.dev)->mast.base.vram.handle;

	u32 offset = asyw->image.offset;

	if (asyh->curs.handle != handle || asyh->curs.offset != offset) {

		asyh->curs.handle = handle;

		asyh->curs.offset = offset;

		asyh->set.curs = asyh->curs.visible;

	}

}



static void

nv50_curs_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,