Merge pull request #1229 from emersion/drm-hotplug-fixes
backend/drm: better hotplug handling
This commit is contained in:
Drew DeVault
GitHub
commit
8898f3199a
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@ -404,9 +404,11 @@ static void realloc_planes(struct wlr_drm_backend *drm, const uint32_t *crtc_in,
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struct wlr_drm_plane *new = &drm->type_planes[type][crtc_res[i]];
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if (*old != new) {
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wlr_log(WLR_DEBUG, "Assigning plane %d -> %d to CRTC %d",
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wlr_log(WLR_DEBUG,
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"Assigning plane %d -> %d (type %zu) to CRTC %d",
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*old ? (int)(*old)->id : -1,
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new ? (int)new->id : -1,
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type,
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c->id);
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changed_outputs[crtc_res[i]] = true;
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@ -420,192 +422,41 @@ static void realloc_planes(struct wlr_drm_backend *drm, const uint32_t *crtc_in,
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}
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}
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static void realloc_crtcs(struct wlr_drm_backend *drm,
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struct wlr_drm_connector *conn, bool *changed_outputs) {
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uint32_t crtc[drm->num_crtcs];
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uint32_t crtc_res[drm->num_crtcs];
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ssize_t num_outputs = wl_list_length(&drm->outputs);
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uint32_t possible_crtc[num_outputs];
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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crtc[i] = UNMATCHED;
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}
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memset(possible_crtc, 0, sizeof(possible_crtc));
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wlr_log(WLR_DEBUG, "Reallocating CRTCs for output '%s'", conn->output.name);
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ssize_t index = -1, i = -1;
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struct wlr_drm_connector *c;
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wl_list_for_each(c, &drm->outputs, link) {
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i++;
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if (c == conn) {
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index = i;
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}
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wlr_log(WLR_DEBUG, "output '%s' crtc=%p state=%d",
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c->output.name, c->crtc, c->state);
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if (c->crtc) {
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crtc[c->crtc - drm->crtcs] = i;
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}
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if (c->state == WLR_DRM_CONN_CONNECTED) {
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possible_crtc[i] = c->possible_crtc;
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}
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}
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assert(index != -1);
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possible_crtc[index] = conn->possible_crtc;
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match_obj(wl_list_length(&drm->outputs), possible_crtc,
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drm->num_crtcs, crtc, crtc_res);
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bool matched[num_outputs];
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memset(matched, false, sizeof(matched));
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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if (crtc_res[i] != UNMATCHED) {
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matched[crtc_res[i]] = true;
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}
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}
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// There is no point doing anything if this monitor doesn't get activated
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if (!matched[index]) {
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wlr_log(WLR_DEBUG, "Could not match a CRTC for this output");
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return;
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}
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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// We don't want any of the current monitors to be deactivated.
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if (crtc[i] != UNMATCHED && !matched[crtc[i]]) {
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wlr_log(WLR_DEBUG, "Could not match a CRTC for other output %d",
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crtc[i]);
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return;
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}
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}
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changed_outputs[index] = true;
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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if (crtc_res[i] == UNMATCHED) {
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continue;
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}
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if (crtc_res[i] != crtc[i]) {
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changed_outputs[crtc_res[i]] = true;
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struct wlr_drm_connector *c;
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size_t pos = 0;
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wl_list_for_each(c, &drm->outputs, link) {
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if (pos == crtc_res[i]) {
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break;
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}
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pos++;
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}
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c->crtc = &drm->crtcs[i];
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wlr_log(WLR_DEBUG, "Assigning CRTC %d to output '%s'",
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drm->crtcs[i].id, c->output.name);
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}
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}
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realloc_planes(drm, crtc_res, changed_outputs);
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}
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static uint32_t get_possible_crtcs(int fd, uint32_t conn_id) {
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drmModeConnector *conn = drmModeGetConnector(fd, conn_id);
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if (!conn) {
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wlr_log_errno(WLR_ERROR, "Failed to get DRM connector");
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return 0;
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}
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if (conn->connection != DRM_MODE_CONNECTED || conn->count_modes == 0) {
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wlr_log(WLR_ERROR, "Output is not connected");
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goto error_conn;
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}
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drmModeEncoder *enc = NULL;
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for (int i = 0; !enc && i < conn->count_encoders; ++i) {
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enc = drmModeGetEncoder(fd, conn->encoders[i]);
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}
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if (!enc) {
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wlr_log(WLR_ERROR, "Failed to get DRM encoder");
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goto error_conn;
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}
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uint32_t ret = enc->possible_crtcs;
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drmModeFreeEncoder(enc);
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drmModeFreeConnector(conn);
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return ret;
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error_conn:
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drmModeFreeConnector(conn);
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return 0;
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}
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static void drm_connector_cleanup(struct wlr_drm_connector *conn);
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static bool drm_connector_set_mode(struct wlr_output *output,
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struct wlr_output_mode *mode) {
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struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
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struct wlr_drm_backend *drm = (struct wlr_drm_backend *)output->backend;
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bool changed_outputs[wl_list_length(&drm->outputs)];
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wlr_log(WLR_INFO, "Modesetting '%s' with '%ux%u@%u mHz'", conn->output.name,
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mode->width, mode->height, mode->refresh);
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conn->possible_crtc = get_possible_crtcs(drm->fd, conn->id);
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if (conn->possible_crtc == 0) {
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goto error_conn;
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}
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memset(changed_outputs, false, sizeof(changed_outputs));
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realloc_crtcs(drm, conn, changed_outputs);
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struct wlr_drm_crtc *crtc = conn->crtc;
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if (!crtc) {
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wlr_log(WLR_ERROR, "Unable to match %s with a CRTC", conn->output.name);
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if (conn->crtc == NULL) {
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wlr_log(WLR_ERROR, "Cannot modeset '%s': no CRTC for this connector",
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conn->output.name);
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// Save the desired mode for later, when we'll get a proper CRTC
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conn->desired_mode = mode;
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return false;
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}
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wlr_log(WLR_INFO, "Modesetting '%s' with '%ux%u@%u mHz'",
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conn->output.name, mode->width, mode->height, mode->refresh);
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if (!init_drm_plane_surfaces(conn->crtc->primary, drm,
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mode->width, mode->height, GBM_FORMAT_XRGB8888)) {
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wlr_log(WLR_ERROR, "Failed to initialize renderer for plane");
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return false;
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}
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wlr_log(WLR_DEBUG, "%s: crtc=%td ovr=%td pri=%td cur=%td", conn->output.name,
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crtc - drm->crtcs,
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crtc->overlay ? crtc->overlay - drm->overlay_planes : -1,
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crtc->primary ? crtc->primary - drm->primary_planes : -1,
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crtc->cursor ? crtc->cursor - drm->cursor_planes : -1);
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conn->state = WLR_DRM_CONN_CONNECTED;
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conn->desired_mode = NULL;
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wlr_output_update_mode(&conn->output, mode);
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wlr_output_update_enabled(&conn->output, true);
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drm_connector_start_renderer(conn);
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// When switching VTs, the mode is not updated but the buffers become
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// invalid, so we need to manually damage the output here
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wlr_output_damage_whole(&conn->output);
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// Since realloc_crtcs can deallocate planes on OTHER outputs,
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// we actually need to reinitialize any that has changed
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ssize_t output_index = -1;
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wl_list_for_each(conn, &drm->outputs, link) {
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output_index++;
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struct wlr_output_mode *mode = conn->output.current_mode;
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struct wlr_drm_crtc *crtc = conn->crtc;
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if (conn->state != WLR_DRM_CONN_CONNECTED ||
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!changed_outputs[output_index]) {
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continue;
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}
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if (!init_drm_plane_surfaces(crtc->primary, drm,
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mode->width, mode->height, GBM_FORMAT_XRGB8888)) {
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wlr_log(WLR_ERROR, "Failed to initialize renderer for plane");
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goto error_conn;
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}
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drm_connector_start_renderer(conn);
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}
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return true;
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error_conn:
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drm_connector_cleanup(conn);
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return false;
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}
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bool wlr_drm_connector_add_mode(struct wlr_output *output,
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@ -855,6 +706,172 @@ static const int32_t subpixel_map[] = {
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[DRM_MODE_SUBPIXEL_NONE] = WL_OUTPUT_SUBPIXEL_NONE,
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};
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static void dealloc_crtc(struct wlr_drm_connector *conn) {
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struct wlr_drm_backend *drm = (struct wlr_drm_backend *)conn->output.backend;
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if (conn->crtc == NULL) {
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return;
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}
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wlr_log(WLR_DEBUG, "De-allocating CRTC %zu for output '%s'",
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conn->crtc - drm->crtcs, conn->output.name);
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for (size_t type = 0; type < 3; ++type) {
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struct wlr_drm_plane *plane = conn->crtc->planes[type];
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if (plane == NULL) {
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continue;
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}
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finish_drm_surface(&plane->surf);
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conn->crtc->planes[type] = NULL;
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}
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drm->iface->conn_enable(drm, conn, false);
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conn->crtc = NULL;
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}
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void realloc_crtcs(struct wlr_drm_backend *drm, bool *changed_outputs) {
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size_t num_outputs = wl_list_length(&drm->outputs);
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wlr_log(WLR_DEBUG, "Reallocating CRTCs");
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uint32_t crtc[drm->num_crtcs];
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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crtc[i] = UNMATCHED;
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}
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uint32_t possible_crtc[num_outputs];
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memset(possible_crtc, 0, sizeof(possible_crtc));
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wlr_log(WLR_DEBUG, "State before reallocation:");
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ssize_t i = -1;
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struct wlr_drm_connector *conn;
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wl_list_for_each(conn, &drm->outputs, link) {
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i++;
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wlr_log(WLR_DEBUG, " '%s' crtc=%d state=%d", conn->output.name,
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conn->crtc ? (int)(conn->crtc - drm->crtcs) : -1, conn->state);
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if (conn->crtc) {
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crtc[conn->crtc - drm->crtcs] = i;
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}
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if (conn->state == WLR_DRM_CONN_CONNECTED ||
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conn->state == WLR_DRM_CONN_NEEDS_MODESET) {
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possible_crtc[i] = conn->possible_crtc;
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}
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}
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uint32_t crtc_res[drm->num_crtcs];
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match_obj(wl_list_length(&drm->outputs), possible_crtc,
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drm->num_crtcs, crtc, crtc_res);
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bool matched[num_outputs];
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memset(matched, false, sizeof(matched));
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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if (crtc_res[i] != UNMATCHED) {
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matched[crtc_res[i]] = true;
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}
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}
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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// We don't want any of the current monitors to be deactivated
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if (crtc[i] != UNMATCHED && !matched[crtc[i]]) {
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wlr_log(WLR_DEBUG, "Could not match a CRTC for connected output %d",
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crtc[i]);
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return;
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}
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}
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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if (crtc_res[i] == UNMATCHED) {
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continue;
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}
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if (crtc_res[i] != crtc[i]) {
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changed_outputs[crtc_res[i]] = true;
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struct wlr_drm_connector *c;
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size_t pos = 0;
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wl_list_for_each(c, &drm->outputs, link) {
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if (pos == crtc_res[i]) {
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break;
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}
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pos++;
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}
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dealloc_crtc(c);
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c->crtc = &drm->crtcs[i];
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wlr_log(WLR_DEBUG, "Assigning CRTC %zu to output %d -> %d '%s'",
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i, crtc[i], crtc_res[i], c->output.name);
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}
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}
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wlr_log(WLR_DEBUG, "State after reallocation:");
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wl_list_for_each(conn, &drm->outputs, link) {
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wlr_log(WLR_DEBUG, " '%s' crtc=%d state=%d", conn->output.name,
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conn->crtc ? (int)(conn->crtc - drm->crtcs) : -1, conn->state);
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}
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realloc_planes(drm, crtc_res, changed_outputs);
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// We need to reinitialize any plane that has changed
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i = -1;
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wl_list_for_each(conn, &drm->outputs, link) {
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i++;
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struct wlr_output_mode *mode = conn->output.current_mode;
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if (conn->state != WLR_DRM_CONN_CONNECTED || !changed_outputs[i]) {
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continue;
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}
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assert(conn->crtc);
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if (!init_drm_plane_surfaces(conn->crtc->primary, drm,
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mode->width, mode->height, GBM_FORMAT_XRGB8888)) {
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wlr_log(WLR_ERROR, "Failed to initialize renderer for plane");
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drm_connector_cleanup(conn);
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break;
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}
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drm_connector_start_renderer(conn);
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wlr_output_damage_whole(&conn->output);
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}
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}
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static uint32_t get_possible_crtcs(int fd, uint32_t conn_id) {
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drmModeConnector *conn = drmModeGetConnector(fd, conn_id);
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if (!conn) {
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wlr_log_errno(WLR_ERROR, "Failed to get DRM connector");
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return 0;
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}
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if (conn->connection != DRM_MODE_CONNECTED || conn->count_modes == 0) {
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wlr_log(WLR_ERROR, "Output is not connected");
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goto error_conn;
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}
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drmModeEncoder *enc = NULL;
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for (int i = 0; !enc && i < conn->count_encoders; ++i) {
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enc = drmModeGetEncoder(fd, conn->encoders[i]);
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}
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if (!enc) {
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wlr_log(WLR_ERROR, "Failed to get DRM encoder");
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goto error_conn;
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}
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uint32_t ret = enc->possible_crtcs;
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drmModeFreeEncoder(enc);
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drmModeFreeConnector(conn);
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return ret;
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error_conn:
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drmModeFreeConnector(conn);
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return 0;
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}
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void scan_drm_connectors(struct wlr_drm_backend *drm) {
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wlr_log(WLR_INFO, "Scanning DRM connectors");
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@ -910,17 +927,16 @@ void scan_drm_connectors(struct wlr_drm_backend *drm) {
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wlr_conn->state = WLR_DRM_CONN_DISCONNECTED;
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wlr_conn->id = drm_conn->connector_id;
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snprintf(wlr_conn->output.name, sizeof(wlr_conn->output.name),
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"%s-%"PRIu32, conn_get_name(drm_conn->connector_type),
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drm_conn->connector_type_id);
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if (curr_enc) {
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wlr_conn->old_crtc = drmModeGetCrtc(drm->fd, curr_enc->crtc_id);
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}
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snprintf(wlr_conn->output.name, sizeof(wlr_conn->output.name),
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"%s-%"PRIu32,
|
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conn_get_name(drm_conn->connector_type),
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drm_conn->connector_type_id);
|
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wl_list_insert(&drm->outputs, &wlr_conn->link);
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wlr_log(WLR_INFO, "Found display '%s'", wlr_conn->output.name);
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wlr_log(WLR_INFO, "Found connector '%s'", wlr_conn->output.name);
|
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} else {
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seen[index] = true;
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}
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|
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@ -976,6 +992,12 @@ void scan_drm_connectors(struct wlr_drm_backend *drm) {
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wl_list_insert(&wlr_conn->output.modes, &mode->wlr_mode.link);
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}
|
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|
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wlr_conn->possible_crtc = get_possible_crtcs(drm->fd, wlr_conn->id);
|
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if (wlr_conn->possible_crtc == 0) {
|
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wlr_log(WLR_ERROR, "No CRTC possible for connector '%s'",
|
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wlr_conn->output.name);
|
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}
|
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|
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wlr_output_update_enabled(&wlr_conn->output, wlr_conn->crtc != NULL);
|
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|
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wlr_conn->state = WLR_DRM_CONN_NEEDS_MODESET;
|
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|
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@ -984,7 +1006,6 @@ void scan_drm_connectors(struct wlr_drm_backend *drm) {
|
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drm_conn->connection != DRM_MODE_CONNECTED) {
|
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wlr_log(WLR_INFO, "'%s' disconnected", wlr_conn->output.name);
|
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|
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wlr_output_update_enabled(&wlr_conn->output, false);
|
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drm_connector_cleanup(wlr_conn);
|
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}
|
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|
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|
|
@ -1011,6 +1032,26 @@ void scan_drm_connectors(struct wlr_drm_backend *drm) {
|
|||
free(conn);
|
||||
}
|
||||
|
||||
bool changed_outputs[wl_list_length(&drm->outputs)];
|
||||
memset(changed_outputs, false, sizeof(changed_outputs));
|
||||
for (size_t i = 0; i < new_outputs_len; ++i) {
|
||||
struct wlr_drm_connector *conn = new_outputs[i];
|
||||
|
||||
ssize_t pos = -1;
|
||||
struct wlr_drm_connector *c;
|
||||
wl_list_for_each(c, &drm->outputs, link) {
|
||||
++pos;
|
||||
if (c == conn) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
assert(pos >= 0);
|
||||
|
||||
changed_outputs[pos] = true;
|
||||
}
|
||||
|
||||
realloc_crtcs(drm, changed_outputs);
|
||||
|
||||
for (size_t i = 0; i < new_outputs_len; ++i) {
|
||||
struct wlr_drm_connector *conn = new_outputs[i];
|
||||
|
||||
|
|
@ -1019,6 +1060,15 @@ void scan_drm_connectors(struct wlr_drm_backend *drm) {
|
|||
wlr_signal_emit_safe(&drm->backend.events.new_output,
|
||||
&conn->output);
|
||||
}
|
||||
|
||||
// Try to modeset any output that has a desired mode and a CRTC (ie. was
|
||||
// lacking a CRTC on last modeset)
|
||||
wl_list_for_each(conn, &drm->outputs, link) {
|
||||
if (conn->state == WLR_DRM_CONN_NEEDS_MODESET && conn->crtc != NULL &&
|
||||
conn->desired_mode != NULL) {
|
||||
drm_connector_set_mode(&conn->output, conn->desired_mode);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void page_flip_handler(int fd, unsigned seq,
|
||||
|
|
@ -1114,23 +1164,28 @@ static void drm_connector_cleanup(struct wlr_drm_connector *conn) {
|
|||
}
|
||||
|
||||
conn->output.current_mode = NULL;
|
||||
conn->desired_mode = NULL;
|
||||
struct wlr_drm_mode *mode, *tmp;
|
||||
wl_list_for_each_safe(mode, tmp, &conn->output.modes, wlr_mode.link) {
|
||||
wl_list_remove(&mode->wlr_mode.link);
|
||||
free(mode);
|
||||
}
|
||||
|
||||
conn->output.enabled = false;
|
||||
conn->output.width = conn->output.height = conn->output.refresh = 0;
|
||||
|
||||
memset(&conn->output.make, 0, sizeof(conn->output.make));
|
||||
memset(&conn->output.model, 0, sizeof(conn->output.model));
|
||||
memset(&conn->output.serial, 0, sizeof(conn->output.serial));
|
||||
|
||||
conn->crtc = NULL;
|
||||
conn->possible_crtc = 0;
|
||||
conn->pageflip_pending = false;
|
||||
/* Fallthrough */
|
||||
case WLR_DRM_CONN_NEEDS_MODESET:
|
||||
wlr_log(WLR_INFO, "Emitting destruction signal for '%s'",
|
||||
conn->output.name);
|
||||
dealloc_crtc(conn);
|
||||
conn->possible_crtc = 0;
|
||||
conn->desired_mode = NULL;
|
||||
wlr_signal_emit_safe(&conn->output.events.destroy, &conn->output);
|
||||
break;
|
||||
case WLR_DRM_CONN_DISCONNECTED:
|
||||
|
|
|
|||
|
|
@ -228,9 +228,6 @@ static bool match_obj_(struct match_state *st, size_t skips, size_t score, size_
|
|||
st->replaced = replaced;
|
||||
memcpy(st->best, st->res, sizeof(st->best[0]) * st->num_res);
|
||||
|
||||
if (st->score == st->num_objs && st->replaced == 0) {
|
||||
st->exit_early = true;
|
||||
}
|
||||
st->exit_early = (st->score == st->num_res - skips
|
||||
|| st->score == st->num_objs)
|
||||
&& st->replaced == 0;
|
||||
|
|
@ -250,37 +247,44 @@ static bool match_obj_(struct match_state *st, size_t skips, size_t score, size_
|
|||
* Attempt to use the current solution first, to try and avoid
|
||||
* recalculating everything
|
||||
*/
|
||||
|
||||
if (st->orig[i] != UNMATCHED && !is_taken(i, st->res, st->orig[i])) {
|
||||
st->res[i] = st->orig[i];
|
||||
if (match_obj_(st, skips, score + 1, replaced, i + 1)) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
if (st->orig[i] == UNMATCHED) {
|
||||
st->res[i] = UNMATCHED;
|
||||
match_obj_(st, skips, score, replaced, i + 1);
|
||||
if (st->exit_early) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
if (st->orig[i] != UNMATCHED) {
|
||||
++replaced;
|
||||
}
|
||||
|
||||
bool is_best = false;
|
||||
for (st->res[i] = 0; st->res[i] < st->num_objs; ++st->res[i]) {
|
||||
bool has_best = false;
|
||||
for (size_t candidate = 0; candidate < st->num_objs; ++candidate) {
|
||||
// We tried this earlier
|
||||
if (st->res[i] == st->orig[i]) {
|
||||
if (candidate == st->orig[i]) {
|
||||
continue;
|
||||
}
|
||||
|
||||
// Not compatible
|
||||
if (!(st->objs[st->res[i]] & (1 << i))) {
|
||||
if (!(st->objs[candidate] & (1 << i))) {
|
||||
continue;
|
||||
}
|
||||
|
||||
// Already taken
|
||||
if (is_taken(i, st->res, st->res[i])) {
|
||||
if (is_taken(i, st->res, candidate)) {
|
||||
continue;
|
||||
}
|
||||
|
||||
st->res[i] = candidate;
|
||||
if (match_obj_(st, skips, score + 1, replaced, i + 1)) {
|
||||
is_best = true;
|
||||
has_best = true;
|
||||
}
|
||||
|
||||
if (st->exit_early) {
|
||||
|
|
@ -288,7 +292,7 @@ static bool match_obj_(struct match_state *st, size_t skips, size_t score, size_
|
|||
}
|
||||
}
|
||||
|
||||
if (is_best) {
|
||||
if (has_best) {
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
@ -301,6 +305,9 @@ size_t match_obj(size_t num_objs, const uint32_t objs[static restrict num_objs],
|
|||
size_t num_res, const uint32_t res[static restrict num_res],
|
||||
uint32_t out[static restrict num_res]) {
|
||||
uint32_t solution[num_res];
|
||||
for (size_t i = 0; i < num_res; ++i) {
|
||||
solution[i] = UNMATCHED;
|
||||
}
|
||||
|
||||
struct match_state st = {
|
||||
.num_objs = num_objs,
|
||||
|
|
|
|||
|
|
@ -119,6 +119,7 @@ struct wlr_drm_connector {
|
|||
struct wlr_output output;
|
||||
|
||||
enum wlr_drm_connector_state state;
|
||||
struct wlr_output_mode *desired_mode;
|
||||
uint32_t id;
|
||||
|
||||
struct wlr_drm_crtc *crtc;
|
||||
|
|
|
|||
|
|
@ -768,7 +768,8 @@ bool wlr_output_cursor_set_image(struct wlr_output_cursor *cursor,
|
|||
return true;
|
||||
}
|
||||
|
||||
wlr_log(WLR_DEBUG, "Falling back to software cursor");
|
||||
wlr_log(WLR_DEBUG, "Falling back to software cursor on output '%s'",
|
||||
cursor->output->name);
|
||||
output_cursor_damage_whole(cursor);
|
||||
return true;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue