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

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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: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org [4.11+]
This commit is contained in:
Ben Skeggs 2017-05-01 16:53:40 +10:00
parent 36601c2b36
commit e6db95799b
1 changed files with 7 additions and 3 deletions
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10
drivers/gpu/drm/nouveau/nv50_display.c
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@ -1119,9 +1119,13 @@ 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;
asyh->set.curs = asyh->curs.visible;
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