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Add error recovery for failed page flips

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This commit is contained in:
Scott Anderson 2017-09-23 18:27:14 +12:00
parent 459d138fa2
commit 025b3ee515
2 changed files with 47 additions and 5 deletions
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51
backend/drm/drm.c
View file

@ -301,8 +301,14 @@ static void wlr_drm_output_swap_buffers(struct wlr_output *_output) {
wlr_drm_plane_swap_buffers(renderer, plane);
backend->iface->crtc_pageflip(backend, output, crtc, get_fb_for_bo(plane->back), NULL);
output->pageflip_pending = true;
uint32_t fb_id = get_fb_for_bo(plane->back);
if (backend->iface->crtc_pageflip(backend, output, crtc, fb_id, NULL)) {
output->pageflip_pending = true;
} else {
wl_event_source_timer_update(output->retry_pageflip,
output->output.current_mode->refresh);
}
}
static void wlr_drm_output_set_gamma(struct wlr_output *_output,
@ -348,8 +354,12 @@ void wlr_drm_output_start_renderer(struct wlr_drm_output *output) {
struct wlr_drm_output_mode *_mode =
(struct wlr_drm_output_mode *)output->output.current_mode;
drmModeModeInfo *mode = &_mode->mode;
backend->iface->crtc_pageflip(backend, output, crtc, get_fb_for_bo(bo), mode);
output->pageflip_pending = true;
if (backend->iface->crtc_pageflip(backend, output, crtc, get_fb_for_bo(bo), mode)) {
output->pageflip_pending = true;
} else {
wl_event_source_timer_update(output->retry_pageflip,
output->output.current_mode->refresh);
}
}
static void wlr_drm_output_enable(struct wlr_output *_output, bool enable) {
@ -705,6 +715,7 @@ static bool wlr_drm_output_move_cursor(struct wlr_output *_output,
static void wlr_drm_output_destroy(struct wlr_output *_output) {
struct wlr_drm_output *output = (struct wlr_drm_output *)_output;
wlr_drm_output_cleanup(output);
wl_event_source_remove(output->retry_pageflip);
free(output);
}
@ -721,6 +732,29 @@ static struct wlr_output_impl output_impl = {
.get_gamma_size = wlr_drm_output_get_gamma_size,
};
static int retry_pageflip(void *data) {
struct wlr_drm_output *output = data;
struct wlr_drm_backend *backend =
wl_container_of(output->renderer, backend, renderer);
struct wlr_drm_crtc *crtc = output->crtc;
struct wlr_drm_plane *plane = crtc->primary;
struct gbm_bo *bo = plane->front ? plane->front : plane->back;
struct wlr_drm_output_mode *wlr_mode =
(struct wlr_drm_output_mode *)output->output.current_mode;
drmModeModeInfo *mode = &wlr_mode->mode;
if (backend->iface->crtc_pageflip(backend, output, crtc, get_fb_for_bo(bo), mode)) {
output->pageflip_pending = true;
} else {
wl_event_source_timer_update(output->retry_pageflip,
output->output.current_mode->refresh);
}
return 1;
}
static int find_id(const void *item, const void *cmp_to) {
const struct wlr_drm_output *output = item;
const uint32_t *id = cmp_to;
@ -777,6 +811,11 @@ void wlr_drm_scan_connectors(struct wlr_drm_backend *backend) {
}
wlr_output_init(&output->output, &output_impl);
struct wl_event_loop *ev = wl_display_get_event_loop(backend->display);
output->retry_pageflip = wl_event_loop_add_timer(ev, retry_pageflip,
output);
output->renderer = &backend->renderer;
output->state = WLR_DRM_OUTPUT_DISCONNECTED;
output->connector = conn->connector_id;
@ -807,6 +846,7 @@ void wlr_drm_scan_connectors(struct wlr_drm_backend *backend) {
if (list_add(backend->outputs, output) == -1) {
wlr_log_errno(L_ERROR, "Allocation failed");
drmModeFreeConnector(conn);
wl_event_source_remove(output->retry_pageflip);
free(output);
continue;
}
@ -872,6 +912,7 @@ void wlr_drm_scan_connectors(struct wlr_drm_backend *backend) {
wlr_drm_output_cleanup(output);
drmModeFreeCrtc(output->old_crtc);
wl_event_source_remove(output->retry_pageflip);
free(output);
list_del(backend->outputs, i);
@ -926,7 +967,7 @@ void wlr_drm_restore_outputs(struct wlr_drm_backend *drm) {
wlr_drm_event(drm->fd, 0, NULL);
for (size_t i = 0; i < drm->outputs->length; ++i) {
struct wlr_drm_output *output = drm->outputs->items[i];
if (!output->pageflip_pending) {
if (output->state != WLR_DRM_OUTPUT_CLEANUP || !output->pageflip_pending) {
to_close &= ~(1 << i);
}
}

1
include/backend/drm.h
View file

@ -155,6 +155,7 @@ struct wlr_drm_output {
struct wlr_drm_renderer *renderer;
bool pageflip_pending;
struct wl_event_source *retry_pageflip;
};
// Used to provide atomic or legacy DRM functions