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| author | Ben Skeggs <bskeggs@redhat.com> | 2019-05-03 12:23:55 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2019-05-14 16:58:05 +1000 |
| commit | d2434e4d942c32cadcbdbcd32c58f35098f3b604 (patch) | |
| tree | db2523ef61d30eb8bc6944ba2275bef41d951c18 /drivers/gpu | |
| parent | 30df16b93b25fe345e4c5d4e9c789d3f4f337b72 (diff) | |
| download | linux-stable-d2434e4d942c32cadcbdbcd32c58f35098f3b604.tar.gz linux-stable-d2434e4d942c32cadcbdbcd32c58f35098f3b604.tar.bz2 linux-stable-d2434e4d942c32cadcbdbcd32c58f35098f3b604.zip | |
drm/nouveau/kms/gv100-: fix spurious window immediate interlocks
Cursor position updates were accidentally causing us to attempt to interlock
window with window immediate, and without a matching window immediate update,
NVDisplay could hang forever in some circumstances.
Fixes suspend/resume on (at least) Quadro RTX4000 (TU104).
Reported-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/nouveau/dispnv50/disp.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/dispnv50/wimmc37b.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/dispnv50/wndw.c | 2 |
3 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.h b/drivers/gpu/drm/nouveau/dispnv50/disp.h index 2216c58620c2..7c41b0599d1a 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.h +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.h @@ -41,6 +41,7 @@ struct nv50_disp_interlock { NV50_DISP_INTERLOCK__SIZE } type; u32 data; + u32 wimm; }; void corec37d_ntfy_init(struct nouveau_bo *, u32); diff --git a/drivers/gpu/drm/nouveau/dispnv50/wimmc37b.c b/drivers/gpu/drm/nouveau/dispnv50/wimmc37b.c index 9103b8494279..f7dbd965e4e7 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/wimmc37b.c +++ b/drivers/gpu/drm/nouveau/dispnv50/wimmc37b.c @@ -75,6 +75,7 @@ wimmc37b_init_(const struct nv50_wimm_func *func, struct nouveau_drm *drm, return ret; } + wndw->interlock.wimm = wndw->interlock.data; wndw->immd = func; return 0; } diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.c b/drivers/gpu/drm/nouveau/dispnv50/wndw.c index b95181027b31..471a39a077e5 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c +++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c @@ -149,7 +149,7 @@ nv50_wndw_flush_set(struct nv50_wndw *wndw, u32 *interlock, if (asyw->set.point) { if (asyw->set.point = false, asyw->set.mask) interlock[wndw->interlock.type] |= wndw->interlock.data; - interlock[NV50_DISP_INTERLOCK_WIMM] |= wndw->interlock.data; + interlock[NV50_DISP_INTERLOCK_WIMM] |= wndw->interlock.wimm; wndw->immd->point(wndw, asyw); wndw->immd->update(wndw, interlock); |