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authorBen Skeggs <bskeggs@redhat.com>2020-06-04 04:00:01 +0300
committerBen Skeggs <bskeggs@redhat.com>2020-06-04 07:23:22 +0300
commitdd67cab5db7e940dad66653a04d780d53bd380d5 (patch)
tree562f6e9e4ea5f450e721a5e3aa9572920af796ac /drivers/gpu
parent21454fe697fde188ad6fb541f94b9838fa73ab38 (diff)
downloadlinux-dd67cab5db7e940dad66653a04d780d53bd380d5.tar.xz
drm/nouveau/kms/nv50-: clear SW state of disabled windows harder
The most innocuous result of not having done this is that we end up sending unnecessary methods when we next enable the window. However, interactions with the code handling skipping disables when an update immediately follows, and window ownership assignment, can lead to upsetting the display hardware on Volta and newer. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/dispnv50/wndw.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.c b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
index e25ead56052c..99b9b681736d 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c
@@ -192,6 +192,8 @@ nv50_wndw_atomic_check_release(struct nv50_wndw *wndw,
wndw->func->release(wndw, asyw, asyh);
asyw->ntfy.handle = 0;
asyw->sema.handle = 0;
+ asyw->xlut.handle = 0;
+ memset(asyw->image.handle, 0x00, sizeof(asyw->image.handle));
}
static int
@@ -519,7 +521,8 @@ nv50_wndw_prepare_fb(struct drm_plane *plane, struct drm_plane_state *state)
return PTR_ERR(ctxdma);
}
- asyw->image.handle[0] = ctxdma->object.handle;
+ if (asyw->visible)
+ asyw->image.handle[0] = ctxdma->object.handle;
}
asyw->state.fence = dma_resv_get_excl_rcu(nvbo->bo.base.resv);