renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-23 04:34:11 +08:00
Code

drm/nouveau/kms/nv50-: ensure window updates are submitted when flushing mst disables

Browse Source 
It was possible for this to be skipped when shutting down MST streams, and
leaving the core channel interlocked with a wndw channel update that never
happens - leading to a hung display.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Tested-By: Lyude Paul <lyude@redhat.com>
This commit is contained in:
Ben Skeggs 2018-07-03 10:52:34 +10:00
parent 1264f8325e
commit df0c97e2c7
1 changed files with 26 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
drivers/gpu/drm/nouveau/dispnv50/disp.c
View File

@ -1585,8 +1585,9 @@ nv50_pior_create(struct drm_connector *connector, struct dcb_output *dcbe)
*****************************************************************************/
static void
nv50_disp_atomic_commit_core(struct nouveau_drm *drm, u32 *interlock)
nv50_disp_atomic_commit_core(struct drm_atomic_state *state, u32 *interlock)
{
struct nouveau_drm *drm = nouveau_drm(state->dev);
struct nv50_disp *disp = nv50_disp(drm->dev);
struct nv50_core *core = disp->core;
struct nv50_mstm *mstm;
@ -1617,6 +1618,22 @@ nv50_disp_atomic_commit_core(struct nouveau_drm *drm, u32 *interlock)
}
}
static void
nv50_disp_atomic_commit_wndw(struct drm_atomic_state *state, u32 *interlock)
{
struct drm_plane_state *new_plane_state;
struct drm_plane *plane;
int i;
for_each_new_plane_in_state(state, plane, new_plane_state, i) {
struct nv50_wndw *wndw = nv50_wndw(plane);
if (interlock[wndw->interlock.type] & wndw->interlock.data) {
if (wndw->func->update)
wndw->func->update(wndw, interlock);
}
}
}
static void
nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
{
@ -1684,7 +1701,8 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
help->disable(encoder);
interlock[NV50_DISP_INTERLOCK_CORE] |= 1;
if (outp->flush_disable) {
nv50_disp_atomic_commit_core(drm, interlock);
nv50_disp_atomic_commit_wndw(state, interlock);
nv50_disp_atomic_commit_core(state, interlock);
memset(interlock, 0x00, sizeof(interlock));
}
}
@ -1693,15 +1711,8 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
/* Flush disable. */
if (interlock[NV50_DISP_INTERLOCK_CORE]) {
if (atom->flush_disable) {
for_each_new_plane_in_state(state, plane, new_plane_state, i) {
struct nv50_wndw *wndw = nv50_wndw(plane);
if (interlock[wndw->interlock.type] & wndw->interlock.data) {
if (wndw->func->update)
wndw->func->update(wndw, interlock);
}
}
nv50_disp_atomic_commit_core(drm, interlock);
nv50_disp_atomic_commit_wndw(state, interlock);
nv50_disp_atomic_commit_core(state, interlock);
memset(interlock, 0x00, sizeof(interlock));
}
}
@ -1762,18 +1773,14 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
}
/* Flush update. */
for_each_new_plane_in_state(state, plane, new_plane_state, i) {
struct nv50_wndw *wndw = nv50_wndw(plane);
if (interlock[wndw->interlock.type] & wndw->interlock.data) {
if (wndw->func->update)
wndw->func->update(wndw, interlock);
}
}
nv50_disp_atomic_commit_wndw(state, interlock);
if (interlock[NV50_DISP_INTERLOCK_CORE]) {
if (interlock[NV50_DISP_INTERLOCK_BASE] ||
interlock[NV50_DISP_INTERLOCK_OVLY] ||
interlock[NV50_DISP_INTERLOCK_WNDW] ||
!atom->state.legacy_cursor_update)
nv50_disp_atomic_commit_core(drm, interlock);
nv50_disp_atomic_commit_core(state, interlock);
else
disp->core->func->update(disp->core, interlock, false);
}