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| author | Ben Skeggs <bskeggs@redhat.com> | 2017-05-01 16:53:40 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2017-05-12 08:29:41 +1000 |
| commit | e6db95799b1b870aae15682a6d0898df9e9dfb38 (patch) | |
| tree | 8d83bda0c83b3ce1906c93c9ee48a3455e44ca3c | |
| parent | 36601c2b36e27435d9be33cfa092120ff69914eb (diff) | |
| download | linux-e6db95799b1b870aae15682a6d0898df9e9dfb38.tar.bz2 | |
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: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org [4.11+]
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_display.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 84b9bb43d93a..fcec2aba9ad7 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -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 |