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drm/fb-helper: Move out modeset config code
No functional changes, just moving code as-is and fixing includes. Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190608152657.36613-4-noralf@tronnes.org
This commit is contained in:
Noralf Trønnes
parent
aafa9e0668
commit
cf13909aee
@ -13,13 +13,22 @@
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#include <drm/drm_atomic.h>
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#include <drm/drm_client.h>
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#include <drm/drm_connector.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_device.h>
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#include <drm/drm_drv.h>
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#include <drm/drm_encoder.h>
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#include <drm/drm_print.h>
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#include "drm_crtc_internal.h"
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#include "drm_internal.h"
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#define DRM_CLIENT_MAX_CLONED_CONNECTORS 8
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struct drm_client_offset {
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int x, y;
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};
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int drm_client_modeset_create(struct drm_client_dev *client)
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{
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struct drm_device *dev = client->dev;
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@ -58,7 +67,7 @@ err_free:
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return -ENOMEM;
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}
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void drm_client_modeset_release(struct drm_client_dev *client)
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static void drm_client_modeset_release(struct drm_client_dev *client)
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{
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struct drm_mode_set *modeset;
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unsigned int i;
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@ -75,8 +84,6 @@ void drm_client_modeset_release(struct drm_client_dev *client)
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modeset->num_connectors = 0;
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}
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}
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/* TODO: Remove export when modeset code has been moved over */
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EXPORT_SYMBOL(drm_client_modeset_release);
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void drm_client_modeset_free(struct drm_client_dev *client)
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{
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@ -95,7 +102,8 @@ void drm_client_modeset_free(struct drm_client_dev *client)
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kfree(client->modesets);
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}
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struct drm_mode_set *drm_client_find_modeset(struct drm_client_dev *client, struct drm_crtc *crtc)
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static struct drm_mode_set *
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drm_client_find_modeset(struct drm_client_dev *client, struct drm_crtc *crtc)
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{
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struct drm_mode_set *modeset;
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@ -105,8 +113,695 @@ struct drm_mode_set *drm_client_find_modeset(struct drm_client_dev *client, stru
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return NULL;
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}
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/* TODO: Remove export when modeset code has been moved over */
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EXPORT_SYMBOL(drm_client_find_modeset);
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static struct drm_display_mode *
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drm_connector_has_preferred_mode(struct drm_connector *connector, int width, int height)
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{
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struct drm_display_mode *mode;
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list_for_each_entry(mode, &connector->modes, head) {
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if (mode->hdisplay > width ||
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mode->vdisplay > height)
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continue;
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if (mode->type & DRM_MODE_TYPE_PREFERRED)
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return mode;
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}
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return NULL;
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}
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static struct drm_display_mode *
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drm_connector_pick_cmdline_mode(struct drm_connector *connector)
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{
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struct drm_cmdline_mode *cmdline_mode;
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struct drm_display_mode *mode;
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bool prefer_non_interlace;
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cmdline_mode = &connector->cmdline_mode;
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if (cmdline_mode->specified == false)
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return NULL;
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/* attempt to find a matching mode in the list of modes
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* we have gotten so far, if not add a CVT mode that conforms
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*/
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if (cmdline_mode->rb || cmdline_mode->margins)
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goto create_mode;
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prefer_non_interlace = !cmdline_mode->interlace;
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again:
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list_for_each_entry(mode, &connector->modes, head) {
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/* check width/height */
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if (mode->hdisplay != cmdline_mode->xres ||
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mode->vdisplay != cmdline_mode->yres)
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continue;
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if (cmdline_mode->refresh_specified) {
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if (mode->vrefresh != cmdline_mode->refresh)
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continue;
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}
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if (cmdline_mode->interlace) {
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if (!(mode->flags & DRM_MODE_FLAG_INTERLACE))
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continue;
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} else if (prefer_non_interlace) {
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if (mode->flags & DRM_MODE_FLAG_INTERLACE)
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continue;
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}
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return mode;
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}
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if (prefer_non_interlace) {
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prefer_non_interlace = false;
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goto again;
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}
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create_mode:
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mode = drm_mode_create_from_cmdline_mode(connector->dev, cmdline_mode);
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list_add(&mode->head, &connector->modes);
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return mode;
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}
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static bool drm_connector_enabled(struct drm_connector *connector, bool strict)
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{
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bool enable;
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if (connector->display_info.non_desktop)
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return false;
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if (strict)
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enable = connector->status == connector_status_connected;
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else
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enable = connector->status != connector_status_disconnected;
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return enable;
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}
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static void drm_client_connectors_enabled(struct drm_connector **connectors,
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unsigned int connector_count,
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bool *enabled)
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{
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bool any_enabled = false;
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struct drm_connector *connector;
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int i = 0;
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for (i = 0; i < connector_count; i++) {
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connector = connectors[i];
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enabled[i] = drm_connector_enabled(connector, true);
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DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id,
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connector->display_info.non_desktop ? "non desktop" : enabled[i] ? "yes" : "no");
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any_enabled |= enabled[i];
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}
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if (any_enabled)
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return;
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for (i = 0; i < connector_count; i++)
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enabled[i] = drm_connector_enabled(connectors[i], false);
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}
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static bool drm_client_target_cloned(struct drm_device *dev,
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struct drm_connector **connectors,
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unsigned int connector_count,
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struct drm_display_mode **modes,
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struct drm_client_offset *offsets,
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bool *enabled, int width, int height)
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{
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int count, i, j;
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bool can_clone = false;
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struct drm_display_mode *dmt_mode, *mode;
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/* only contemplate cloning in the single crtc case */
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if (dev->mode_config.num_crtc > 1)
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return false;
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count = 0;
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for (i = 0; i < connector_count; i++) {
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if (enabled[i])
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count++;
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}
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/* only contemplate cloning if more than one connector is enabled */
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if (count <= 1)
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return false;
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/* check the command line or if nothing common pick 1024x768 */
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can_clone = true;
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for (i = 0; i < connector_count; i++) {
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if (!enabled[i])
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continue;
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modes[i] = drm_connector_pick_cmdline_mode(connectors[i]);
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if (!modes[i]) {
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can_clone = false;
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break;
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}
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for (j = 0; j < i; j++) {
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if (!enabled[j])
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continue;
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if (!drm_mode_match(modes[j], modes[i],
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DRM_MODE_MATCH_TIMINGS |
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DRM_MODE_MATCH_CLOCK |
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DRM_MODE_MATCH_FLAGS |
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DRM_MODE_MATCH_3D_FLAGS))
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can_clone = false;
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}
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}
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if (can_clone) {
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DRM_DEBUG_KMS("can clone using command line\n");
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return true;
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}
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/* try and find a 1024x768 mode on each connector */
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can_clone = true;
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dmt_mode = drm_mode_find_dmt(dev, 1024, 768, 60, false);
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for (i = 0; i < connector_count; i++) {
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if (!enabled[i])
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continue;
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list_for_each_entry(mode, &connectors[i]->modes, head) {
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if (drm_mode_match(mode, dmt_mode,
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DRM_MODE_MATCH_TIMINGS |
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DRM_MODE_MATCH_CLOCK |
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DRM_MODE_MATCH_FLAGS |
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DRM_MODE_MATCH_3D_FLAGS))
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modes[i] = mode;
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}
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if (!modes[i])
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can_clone = false;
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}
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if (can_clone) {
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DRM_DEBUG_KMS("can clone using 1024x768\n");
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return true;
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}
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DRM_INFO("kms: can't enable cloning when we probably wanted to.\n");
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return false;
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}
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static int drm_client_get_tile_offsets(struct drm_connector **connectors,
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unsigned int connector_count,
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struct drm_display_mode **modes,
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struct drm_client_offset *offsets,
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int idx,
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int h_idx, int v_idx)
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{
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struct drm_connector *connector;
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int i;
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int hoffset = 0, voffset = 0;
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for (i = 0; i < connector_count; i++) {
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connector = connectors[i];
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if (!connector->has_tile)
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continue;
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if (!modes[i] && (h_idx || v_idx)) {
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DRM_DEBUG_KMS("no modes for connector tiled %d %d\n", i,
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connector->base.id);
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continue;
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}
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if (connector->tile_h_loc < h_idx)
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hoffset += modes[i]->hdisplay;
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if (connector->tile_v_loc < v_idx)
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voffset += modes[i]->vdisplay;
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}
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offsets[idx].x = hoffset;
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offsets[idx].y = voffset;
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DRM_DEBUG_KMS("returned %d %d for %d %d\n", hoffset, voffset, h_idx, v_idx);
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return 0;
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}
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static bool drm_client_target_preferred(struct drm_connector **connectors,
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unsigned int connector_count,
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struct drm_display_mode **modes,
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struct drm_client_offset *offsets,
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bool *enabled, int width, int height)
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{
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const u64 mask = BIT_ULL(connector_count) - 1;
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struct drm_connector *connector;
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u64 conn_configured = 0;
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int tile_pass = 0;
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int i;
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retry:
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for (i = 0; i < connector_count; i++) {
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connector = connectors[i];
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if (conn_configured & BIT_ULL(i))
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continue;
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if (enabled[i] == false) {
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conn_configured |= BIT_ULL(i);
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continue;
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}
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/* first pass over all the untiled connectors */
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if (tile_pass == 0 && connector->has_tile)
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continue;
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if (tile_pass == 1) {
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if (connector->tile_h_loc != 0 ||
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connector->tile_v_loc != 0)
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continue;
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} else {
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if (connector->tile_h_loc != tile_pass - 1 &&
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connector->tile_v_loc != tile_pass - 1)
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/* if this tile_pass doesn't cover any of the tiles - keep going */
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continue;
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/*
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* find the tile offsets for this pass - need to find
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* all tiles left and above
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*/
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drm_client_get_tile_offsets(connectors, connector_count, modes, offsets, i,
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connector->tile_h_loc, connector->tile_v_loc);
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}
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DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n",
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connector->base.id);
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/* got for command line mode first */
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modes[i] = drm_connector_pick_cmdline_mode(connector);
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if (!modes[i]) {
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DRM_DEBUG_KMS("looking for preferred mode on connector %d %d\n",
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connector->base.id, connector->tile_group ? connector->tile_group->id : 0);
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modes[i] = drm_connector_has_preferred_mode(connector, width, height);
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}
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/* No preferred modes, pick one off the list */
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if (!modes[i] && !list_empty(&connector->modes)) {
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list_for_each_entry(modes[i], &connector->modes, head)
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break;
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}
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DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name :
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"none");
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conn_configured |= BIT_ULL(i);
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}
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if ((conn_configured & mask) != mask) {
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tile_pass++;
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goto retry;
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}
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return true;
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}
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static bool connector_has_possible_crtc(struct drm_connector *connector,
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struct drm_crtc *crtc)
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{
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struct drm_encoder *encoder;
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int i;
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drm_connector_for_each_possible_encoder(connector, encoder, i) {
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if (encoder->possible_crtcs & drm_crtc_mask(crtc))
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return true;
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}
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return false;
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}
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static int drm_client_pick_crtcs(struct drm_client_dev *client,
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struct drm_connector **connectors,
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unsigned int connector_count,
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struct drm_crtc **best_crtcs,
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struct drm_display_mode **modes,
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int n, int width, int height)
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{
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struct drm_device *dev = client->dev;
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struct drm_connector *connector;
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int my_score, best_score, score;
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struct drm_crtc **crtcs, *crtc;
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struct drm_mode_set *modeset;
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int o;
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if (n == connector_count)
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return 0;
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connector = connectors[n];
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best_crtcs[n] = NULL;
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best_score = drm_client_pick_crtcs(client, connectors, connector_count,
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best_crtcs, modes, n + 1, width, height);
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if (modes[n] == NULL)
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return best_score;
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crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
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if (!crtcs)
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return best_score;
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my_score = 1;
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if (connector->status == connector_status_connected)
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my_score++;
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if (connector->cmdline_mode.specified)
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my_score++;
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if (drm_connector_has_preferred_mode(connector, width, height))
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my_score++;
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/*
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* select a crtc for this connector and then attempt to configure
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* remaining connectors
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*/
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drm_client_for_each_modeset(modeset, client) {
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crtc = modeset->crtc;
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if (!connector_has_possible_crtc(connector, crtc))
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continue;
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for (o = 0; o < n; o++)
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if (best_crtcs[o] == crtc)
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break;
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if (o < n) {
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/* ignore cloning unless only a single crtc */
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if (dev->mode_config.num_crtc > 1)
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continue;
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if (!drm_mode_equal(modes[o], modes[n]))
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continue;
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}
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crtcs[n] = crtc;
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memcpy(crtcs, best_crtcs, n * sizeof(*crtcs));
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score = my_score + drm_client_pick_crtcs(client, connectors, connector_count,
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crtcs, modes, n + 1, width, height);
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if (score > best_score) {
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best_score = score;
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memcpy(best_crtcs, crtcs, connector_count * sizeof(*crtcs));
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}
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}
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kfree(crtcs);
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return best_score;
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}
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/* Try to read the BIOS display configuration and use it for the initial config */
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static bool drm_client_firmware_config(struct drm_client_dev *client,
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struct drm_connector **connectors,
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unsigned int connector_count,
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struct drm_crtc **crtcs,
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struct drm_display_mode **modes,
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struct drm_client_offset *offsets,
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bool *enabled, int width, int height)
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{
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unsigned int count = min_t(unsigned int, connector_count, BITS_PER_LONG);
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unsigned long conn_configured, conn_seq, mask;
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struct drm_device *dev = client->dev;
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int i, j;
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bool *save_enabled;
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bool fallback = true, ret = true;
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int num_connectors_enabled = 0;
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int num_connectors_detected = 0;
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struct drm_modeset_acquire_ctx ctx;
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if (!drm_drv_uses_atomic_modeset(dev))
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return false;
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save_enabled = kcalloc(count, sizeof(bool), GFP_KERNEL);
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if (!save_enabled)
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return false;
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drm_modeset_acquire_init(&ctx, 0);
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while (drm_modeset_lock_all_ctx(dev, &ctx) != 0)
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drm_modeset_backoff(&ctx);
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memcpy(save_enabled, enabled, count);
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mask = GENMASK(count - 1, 0);
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conn_configured = 0;
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retry:
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conn_seq = conn_configured;
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for (i = 0; i < count; i++) {
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struct drm_connector *connector;
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struct drm_encoder *encoder;
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struct drm_crtc *new_crtc;
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connector = connectors[i];
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if (conn_configured & BIT(i))
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continue;
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if (conn_seq == 0 && !connector->has_tile)
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continue;
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if (connector->status == connector_status_connected)
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num_connectors_detected++;
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||||
|
||||
if (!enabled[i]) {
|
||||
DRM_DEBUG_KMS("connector %s not enabled, skipping\n",
|
||||
connector->name);
|
||||
conn_configured |= BIT(i);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (connector->force == DRM_FORCE_OFF) {
|
||||
DRM_DEBUG_KMS("connector %s is disabled by user, skipping\n",
|
||||
connector->name);
|
||||
enabled[i] = false;
|
||||
continue;
|
||||
}
|
||||
|
||||
encoder = connector->state->best_encoder;
|
||||
if (!encoder || WARN_ON(!connector->state->crtc)) {
|
||||
if (connector->force > DRM_FORCE_OFF)
|
||||
goto bail;
|
||||
|
||||
DRM_DEBUG_KMS("connector %s has no encoder or crtc, skipping\n",
|
||||
connector->name);
|
||||
enabled[i] = false;
|
||||
conn_configured |= BIT(i);
|
||||
continue;
|
||||
}
|
||||
|
||||
num_connectors_enabled++;
|
||||
|
||||
new_crtc = connector->state->crtc;
|
||||
|
||||
/*
|
||||
* Make sure we're not trying to drive multiple connectors
|
||||
* with a single CRTC, since our cloning support may not
|
||||
* match the BIOS.
|
||||
*/
|
||||
for (j = 0; j < count; j++) {
|
||||
if (crtcs[j] == new_crtc) {
|
||||
DRM_DEBUG_KMS("fallback: cloned configuration\n");
|
||||
goto bail;
|
||||
}
|
||||
}
|
||||
|
||||
DRM_DEBUG_KMS("looking for cmdline mode on connector %s\n",
|
||||
connector->name);
|
||||
|
||||
/* go for command line mode first */
|
||||
modes[i] = drm_connector_pick_cmdline_mode(connector);
|
||||
|
||||
/* try for preferred next */
|
||||
if (!modes[i]) {
|
||||
DRM_DEBUG_KMS("looking for preferred mode on connector %s %d\n",
|
||||
connector->name, connector->has_tile);
|
||||
modes[i] = drm_connector_has_preferred_mode(connector, width, height);
|
||||
}
|
||||
|
||||
/* No preferred mode marked by the EDID? Are there any modes? */
|
||||
if (!modes[i] && !list_empty(&connector->modes)) {
|
||||
DRM_DEBUG_KMS("using first mode listed on connector %s\n",
|
||||
connector->name);
|
||||
modes[i] = list_first_entry(&connector->modes,
|
||||
struct drm_display_mode,
|
||||
head);
|
||||
}
|
||||
|
||||
/* last resort: use current mode */
|
||||
if (!modes[i]) {
|
||||
/*
|
||||
* IMPORTANT: We want to use the adjusted mode (i.e.
|
||||
* after the panel fitter upscaling) as the initial
|
||||
* config, not the input mode, which is what crtc->mode
|
||||
* usually contains. But since our current
|
||||
* code puts a mode derived from the post-pfit timings
|
||||
* into crtc->mode this works out correctly.
|
||||
*
|
||||
* This is crtc->mode and not crtc->state->mode for the
|
||||
* fastboot check to work correctly.
|
||||
*/
|
||||
DRM_DEBUG_KMS("looking for current mode on connector %s\n",
|
||||
connector->name);
|
||||
modes[i] = &connector->state->crtc->mode;
|
||||
}
|
||||
crtcs[i] = new_crtc;
|
||||
|
||||
DRM_DEBUG_KMS("connector %s on [CRTC:%d:%s]: %dx%d%s\n",
|
||||
connector->name,
|
||||
connector->state->crtc->base.id,
|
||||
connector->state->crtc->name,
|
||||
modes[i]->hdisplay, modes[i]->vdisplay,
|
||||
modes[i]->flags & DRM_MODE_FLAG_INTERLACE ? "i" : "");
|
||||
|
||||
fallback = false;
|
||||
conn_configured |= BIT(i);
|
||||
}
|
||||
|
||||
if ((conn_configured & mask) != mask && conn_configured != conn_seq)
|
||||
goto retry;
|
||||
|
||||
/*
|
||||
* If the BIOS didn't enable everything it could, fall back to have the
|
||||
* same user experiencing of lighting up as much as possible like the
|
||||
* fbdev helper library.
|
||||
*/
|
||||
if (num_connectors_enabled != num_connectors_detected &&
|
||||
num_connectors_enabled < dev->mode_config.num_crtc) {
|
||||
DRM_DEBUG_KMS("fallback: Not all outputs enabled\n");
|
||||
DRM_DEBUG_KMS("Enabled: %i, detected: %i\n", num_connectors_enabled,
|
||||
num_connectors_detected);
|
||||
fallback = true;
|
||||
}
|
||||
|
||||
if (fallback) {
|
||||
bail:
|
||||
DRM_DEBUG_KMS("Not using firmware configuration\n");
|
||||
memcpy(enabled, save_enabled, count);
|
||||
ret = false;
|
||||
}
|
||||
|
||||
drm_modeset_drop_locks(&ctx);
|
||||
drm_modeset_acquire_fini(&ctx);
|
||||
|
||||
kfree(save_enabled);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* drm_client_modeset_probe() - Probe for displays
|
||||
* @client: DRM client
|
||||
* @width: Maximum display mode width (optional)
|
||||
* @height: Maximum display mode height (optional)
|
||||
*
|
||||
* This function sets up display pipelines for enabled connectors and stores the
|
||||
* config in the client's modeset array.
|
||||
*
|
||||
* Returns:
|
||||
* Zero on success or negative error code on failure.
|
||||
*/
|
||||
int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, unsigned int height)
|
||||
{
|
||||
struct drm_connector *connector, **connectors = NULL;
|
||||
struct drm_connector_list_iter conn_iter;
|
||||
struct drm_device *dev = client->dev;
|
||||
unsigned int total_modes_count = 0;
|
||||
struct drm_client_offset *offsets;
|
||||
unsigned int connector_count = 0;
|
||||
struct drm_display_mode **modes;
|
||||
struct drm_crtc **crtcs;
|
||||
int i, ret = 0;
|
||||
bool *enabled;
|
||||
|
||||
DRM_DEBUG_KMS("\n");
|
||||
|
||||
if (!width)
|
||||
width = dev->mode_config.max_width;
|
||||
if (!height)
|
||||
height = dev->mode_config.max_height;
|
||||
|
||||
drm_connector_list_iter_begin(dev, &conn_iter);
|
||||
drm_client_for_each_connector_iter(connector, &conn_iter) {
|
||||
struct drm_connector **tmp;
|
||||
|
||||
tmp = krealloc(connectors, (connector_count + 1) * sizeof(*connectors), GFP_KERNEL);
|
||||
if (!tmp) {
|
||||
ret = -ENOMEM;
|
||||
goto free_connectors;
|
||||
}
|
||||
|
||||
connectors = tmp;
|
||||
drm_connector_get(connector);
|
||||
connectors[connector_count++] = connector;
|
||||
}
|
||||
drm_connector_list_iter_end(&conn_iter);
|
||||
|
||||
if (!connector_count)
|
||||
return 0;
|
||||
|
||||
crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
|
||||
modes = kcalloc(connector_count, sizeof(*modes), GFP_KERNEL);
|
||||
offsets = kcalloc(connector_count, sizeof(*offsets), GFP_KERNEL);
|
||||
enabled = kcalloc(connector_count, sizeof(bool), GFP_KERNEL);
|
||||
if (!crtcs || !modes || !enabled || !offsets) {
|
||||
DRM_ERROR("Memory allocation failed\n");
|
||||
ret = -ENOMEM;
|
||||
goto out;
|
||||
}
|
||||
|
||||
mutex_lock(&client->modeset_mutex);
|
||||
|
||||
mutex_lock(&dev->mode_config.mutex);
|
||||
for (i = 0; i < connector_count; i++)
|
||||
total_modes_count += connectors[i]->funcs->fill_modes(connectors[i], width, height);
|
||||
if (!total_modes_count)
|
||||
DRM_DEBUG_KMS("No connectors reported connected with modes\n");
|
||||
drm_client_connectors_enabled(connectors, connector_count, enabled);
|
||||
|
||||
if (!drm_client_firmware_config(client, connectors, connector_count, crtcs,
|
||||
modes, offsets, enabled, width, height)) {
|
||||
memset(modes, 0, connector_count * sizeof(*modes));
|
||||
memset(crtcs, 0, connector_count * sizeof(*crtcs));
|
||||
memset(offsets, 0, connector_count * sizeof(*offsets));
|
||||
|
||||
if (!drm_client_target_cloned(dev, connectors, connector_count, modes,
|
||||
offsets, enabled, width, height) &&
|
||||
!drm_client_target_preferred(connectors, connector_count, modes,
|
||||
offsets, enabled, width, height))
|
||||
DRM_ERROR("Unable to find initial modes\n");
|
||||
|
||||
DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n",
|
||||
width, height);
|
||||
|
||||
drm_client_pick_crtcs(client, connectors, connector_count,
|
||||
crtcs, modes, 0, width, height);
|
||||
}
|
||||
mutex_unlock(&dev->mode_config.mutex);
|
||||
|
||||
drm_client_modeset_release(client);
|
||||
|
||||
for (i = 0; i < connector_count; i++) {
|
||||
struct drm_display_mode *mode = modes[i];
|
||||
struct drm_crtc *crtc = crtcs[i];
|
||||
struct drm_client_offset *offset = &offsets[i];
|
||||
|
||||
if (mode && crtc) {
|
||||
struct drm_mode_set *modeset = drm_client_find_modeset(client, crtc);
|
||||
struct drm_connector *connector = connectors[i];
|
||||
|
||||
DRM_DEBUG_KMS("desired mode %s set on crtc %d (%d,%d)\n",
|
||||
mode->name, crtc->base.id, offset->x, offset->y);
|
||||
|
||||
if (WARN_ON_ONCE(modeset->num_connectors == DRM_CLIENT_MAX_CLONED_CONNECTORS ||
|
||||
(dev->mode_config.num_crtc > 1 && modeset->num_connectors == 1))) {
|
||||
ret = -EINVAL;
|
||||
break;
|
||||
}
|
||||
|
||||
modeset->mode = drm_mode_duplicate(dev, mode);
|
||||
drm_connector_get(connector);
|
||||
modeset->connectors[modeset->num_connectors++] = connector;
|
||||
modeset->x = offset->x;
|
||||
modeset->y = offset->y;
|
||||
}
|
||||
}
|
||||
|
||||
mutex_unlock(&client->modeset_mutex);
|
||||
out:
|
||||
kfree(crtcs);
|
||||
kfree(modes);
|
||||
kfree(offsets);
|
||||
kfree(enabled);
|
||||
free_connectors:
|
||||
for (i = 0; i < connector_count; i++)
|
||||
drm_connector_put(connectors[i]);
|
||||
kfree(connectors);
|
||||
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL(drm_client_modeset_probe);
|
||||
|
||||
/**
|
||||
* drm_client_panel_rotation() - Check panel orientation
|
||||
|
||||
@ -48,10 +48,6 @@
|
||||
|
||||
#include "drm_internal.h"
|
||||
|
||||
struct drm_client_offset {
|
||||
int x, y;
|
||||
};
|
||||
|
||||
static bool drm_fbdev_emulation = true;
|
||||
module_param_named(fbdev_emulation, drm_fbdev_emulation, bool, 0600);
|
||||
MODULE_PARM_DESC(fbdev_emulation,
|
||||
@ -1703,694 +1699,6 @@ void drm_fb_helper_fill_info(struct fb_info *info,
|
||||
}
|
||||
EXPORT_SYMBOL(drm_fb_helper_fill_info);
|
||||
|
||||
static struct drm_display_mode *
|
||||
drm_connector_has_preferred_mode(struct drm_connector *connector, int width, int height)
|
||||
{
|
||||
struct drm_display_mode *mode;
|
||||
|
||||
list_for_each_entry(mode, &connector->modes, head) {
|
||||
if (mode->hdisplay > width ||
|
||||
mode->vdisplay > height)
|
||||
continue;
|
||||
if (mode->type & DRM_MODE_TYPE_PREFERRED)
|
||||
return mode;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static struct drm_display_mode *
|
||||
drm_connector_pick_cmdline_mode(struct drm_connector *connector)
|
||||
{
|
||||
struct drm_cmdline_mode *cmdline_mode;
|
||||
struct drm_display_mode *mode;
|
||||
bool prefer_non_interlace;
|
||||
|
||||
cmdline_mode = &connector->cmdline_mode;
|
||||
if (cmdline_mode->specified == false)
|
||||
return NULL;
|
||||
|
||||
/* attempt to find a matching mode in the list of modes
|
||||
* we have gotten so far, if not add a CVT mode that conforms
|
||||
*/
|
||||
if (cmdline_mode->rb || cmdline_mode->margins)
|
||||
goto create_mode;
|
||||
|
||||
prefer_non_interlace = !cmdline_mode->interlace;
|
||||
again:
|
||||
list_for_each_entry(mode, &connector->modes, head) {
|
||||
/* check width/height */
|
||||
if (mode->hdisplay != cmdline_mode->xres ||
|
||||
mode->vdisplay != cmdline_mode->yres)
|
||||
continue;
|
||||
|
||||
if (cmdline_mode->refresh_specified) {
|
||||
if (mode->vrefresh != cmdline_mode->refresh)
|
||||
continue;
|
||||
}
|
||||
|
||||
if (cmdline_mode->interlace) {
|
||||
if (!(mode->flags & DRM_MODE_FLAG_INTERLACE))
|
||||
continue;
|
||||
} else if (prefer_non_interlace) {
|
||||
if (mode->flags & DRM_MODE_FLAG_INTERLACE)
|
||||
continue;
|
||||
}
|
||||
return mode;
|
||||
}
|
||||
|
||||
if (prefer_non_interlace) {
|
||||
prefer_non_interlace = false;
|
||||
goto again;
|
||||
}
|
||||
|
||||
create_mode:
|
||||
mode = drm_mode_create_from_cmdline_mode(connector->dev, cmdline_mode);
|
||||
list_add(&mode->head, &connector->modes);
|
||||
|
||||
return mode;
|
||||
}
|
||||
|
||||
static bool drm_connector_enabled(struct drm_connector *connector, bool strict)
|
||||
{
|
||||
bool enable;
|
||||
|
||||
if (connector->display_info.non_desktop)
|
||||
return false;
|
||||
|
||||
if (strict)
|
||||
enable = connector->status == connector_status_connected;
|
||||
else
|
||||
enable = connector->status != connector_status_disconnected;
|
||||
|
||||
return enable;
|
||||
}
|
||||
|
||||
static void drm_client_connectors_enabled(struct drm_connector **connectors,
|
||||
unsigned int connector_count,
|
||||
bool *enabled)
|
||||
{
|
||||
bool any_enabled = false;
|
||||
struct drm_connector *connector;
|
||||
int i = 0;
|
||||
|
||||
for (i = 0; i < connector_count; i++) {
|
||||
connector = connectors[i];
|
||||
enabled[i] = drm_connector_enabled(connector, true);
|
||||
DRM_DEBUG_KMS("connector %d enabled? %s\n", connector->base.id,
|
||||
connector->display_info.non_desktop ? "non desktop" : enabled[i] ? "yes" : "no");
|
||||
|
||||
any_enabled |= enabled[i];
|
||||
}
|
||||
|
||||
if (any_enabled)
|
||||
return;
|
||||
|
||||
for (i = 0; i < connector_count; i++)
|
||||
enabled[i] = drm_connector_enabled(connectors[i], false);
|
||||
}
|
||||
|
||||
static bool drm_client_target_cloned(struct drm_device *dev,
|
||||
struct drm_connector **connectors,
|
||||
unsigned int connector_count,
|
||||
struct drm_display_mode **modes,
|
||||
struct drm_client_offset *offsets,
|
||||
bool *enabled, int width, int height)
|
||||
{
|
||||
int count, i, j;
|
||||
bool can_clone = false;
|
||||
struct drm_display_mode *dmt_mode, *mode;
|
||||
|
||||
/* only contemplate cloning in the single crtc case */
|
||||
if (dev->mode_config.num_crtc > 1)
|
||||
return false;
|
||||
|
||||
count = 0;
|
||||
for (i = 0; i < connector_count; i++) {
|
||||
if (enabled[i])
|
||||
count++;
|
||||
}
|
||||
|
||||
/* only contemplate cloning if more than one connector is enabled */
|
||||
if (count <= 1)
|
||||
return false;
|
||||
|
||||
/* check the command line or if nothing common pick 1024x768 */
|
||||
can_clone = true;
|
||||
for (i = 0; i < connector_count; i++) {
|
||||
if (!enabled[i])
|
||||
continue;
|
||||
modes[i] = drm_connector_pick_cmdline_mode(connectors[i]);
|
||||
if (!modes[i]) {
|
||||
can_clone = false;
|
||||
break;
|
||||
}
|
||||
for (j = 0; j < i; j++) {
|
||||
if (!enabled[j])
|
||||
continue;
|
||||
if (!drm_mode_match(modes[j], modes[i],
|
||||
DRM_MODE_MATCH_TIMINGS |
|
||||
DRM_MODE_MATCH_CLOCK |
|
||||
DRM_MODE_MATCH_FLAGS |
|
||||
DRM_MODE_MATCH_3D_FLAGS))
|
||||
can_clone = false;
|
||||
}
|
||||
}
|
||||
|
||||
if (can_clone) {
|
||||
DRM_DEBUG_KMS("can clone using command line\n");
|
||||
return true;
|
||||
}
|
||||
|
||||
/* try and find a 1024x768 mode on each connector */
|
||||
can_clone = true;
|
||||
dmt_mode = drm_mode_find_dmt(dev, 1024, 768, 60, false);
|
||||
|
||||
for (i = 0; i < connector_count; i++) {
|
||||
if (!enabled[i])
|
||||
continue;
|
||||
|
||||
list_for_each_entry(mode, &connectors[i]->modes, head) {
|
||||
if (drm_mode_match(mode, dmt_mode,
|
||||
DRM_MODE_MATCH_TIMINGS |
|
||||
DRM_MODE_MATCH_CLOCK |
|
||||
DRM_MODE_MATCH_FLAGS |
|
||||
DRM_MODE_MATCH_3D_FLAGS))
|
||||
modes[i] = mode;
|
||||
}
|
||||
if (!modes[i])
|
||||
can_clone = false;
|
||||
}
|
||||
|
||||
if (can_clone) {
|
||||
DRM_DEBUG_KMS("can clone using 1024x768\n");
|
||||
return true;
|
||||
}
|
||||
DRM_INFO("kms: can't enable cloning when we probably wanted to.\n");
|
||||
return false;
|
||||
}
|
||||
|
||||
static int drm_client_get_tile_offsets(struct drm_connector **connectors,
|
||||
unsigned int connector_count,
|
||||
struct drm_display_mode **modes,
|
||||
struct drm_client_offset *offsets,
|
||||
int idx,
|
||||
int h_idx, int v_idx)
|
||||
{
|
||||
struct drm_connector *connector;
|
||||
int i;
|
||||
int hoffset = 0, voffset = 0;
|
||||
|
||||
for (i = 0; i < connector_count; i++) {
|
||||
connector = connectors[i];
|
||||
if (!connector->has_tile)
|
||||
continue;
|
||||
|
||||
if (!modes[i] && (h_idx || v_idx)) {
|
||||
DRM_DEBUG_KMS("no modes for connector tiled %d %d\n", i,
|
||||
connector->base.id);
|
||||
continue;
|
||||
}
|
||||
if (connector->tile_h_loc < h_idx)
|
||||
hoffset += modes[i]->hdisplay;
|
||||
|
||||
if (connector->tile_v_loc < v_idx)
|
||||
voffset += modes[i]->vdisplay;
|
||||
}
|
||||
offsets[idx].x = hoffset;
|
||||
offsets[idx].y = voffset;
|
||||
DRM_DEBUG_KMS("returned %d %d for %d %d\n", hoffset, voffset, h_idx, v_idx);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static bool drm_client_target_preferred(struct drm_connector **connectors,
|
||||
unsigned int connector_count,
|
||||
struct drm_display_mode **modes,
|
||||
struct drm_client_offset *offsets,
|
||||
bool *enabled, int width, int height)
|
||||
{
|
||||
const u64 mask = BIT_ULL(connector_count) - 1;
|
||||
struct drm_connector *connector;
|
||||
u64 conn_configured = 0;
|
||||
int tile_pass = 0;
|
||||
int i;
|
||||
|
||||
retry:
|
||||
for (i = 0; i < connector_count; i++) {
|
||||
connector = connectors[i];
|
||||
|
||||
if (conn_configured & BIT_ULL(i))
|
||||
continue;
|
||||
|
||||
if (enabled[i] == false) {
|
||||
conn_configured |= BIT_ULL(i);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* first pass over all the untiled connectors */
|
||||
if (tile_pass == 0 && connector->has_tile)
|
||||
continue;
|
||||
|
||||
if (tile_pass == 1) {
|
||||
if (connector->tile_h_loc != 0 ||
|
||||
connector->tile_v_loc != 0)
|
||||
continue;
|
||||
|
||||
} else {
|
||||
if (connector->tile_h_loc != tile_pass - 1 &&
|
||||
connector->tile_v_loc != tile_pass - 1)
|
||||
/* if this tile_pass doesn't cover any of the tiles - keep going */
|
||||
continue;
|
||||
|
||||
/*
|
||||
* find the tile offsets for this pass - need to find
|
||||
* all tiles left and above
|
||||
*/
|
||||
drm_client_get_tile_offsets(connectors, connector_count, modes, offsets, i,
|
||||
connector->tile_h_loc, connector->tile_v_loc);
|
||||
}
|
||||
DRM_DEBUG_KMS("looking for cmdline mode on connector %d\n",
|
||||
connector->base.id);
|
||||
|
||||
/* got for command line mode first */
|
||||
modes[i] = drm_connector_pick_cmdline_mode(connector);
|
||||
if (!modes[i]) {
|
||||
DRM_DEBUG_KMS("looking for preferred mode on connector %d %d\n",
|
||||
connector->base.id, connector->tile_group ? connector->tile_group->id : 0);
|
||||
modes[i] = drm_connector_has_preferred_mode(connector, width, height);
|
||||
}
|
||||
/* No preferred modes, pick one off the list */
|
||||
if (!modes[i] && !list_empty(&connector->modes)) {
|
||||
list_for_each_entry(modes[i], &connector->modes, head)
|
||||
break;
|
||||
}
|
||||
DRM_DEBUG_KMS("found mode %s\n", modes[i] ? modes[i]->name :
|
||||
"none");
|
||||
conn_configured |= BIT_ULL(i);
|
||||
}
|
||||
|
||||
if ((conn_configured & mask) != mask) {
|
||||
tile_pass++;
|
||||
goto retry;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool connector_has_possible_crtc(struct drm_connector *connector,
|
||||
struct drm_crtc *crtc)
|
||||
{
|
||||
struct drm_encoder *encoder;
|
||||
int i;
|
||||
|
||||
drm_connector_for_each_possible_encoder(connector, encoder, i) {
|
||||
if (encoder->possible_crtcs & drm_crtc_mask(crtc))
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
static int drm_client_pick_crtcs(struct drm_client_dev *client,
|
||||
struct drm_connector **connectors,
|
||||
unsigned int connector_count,
|
||||
struct drm_crtc **best_crtcs,
|
||||
struct drm_display_mode **modes,
|
||||
int n, int width, int height)
|
||||
{
|
||||
struct drm_device *dev = client->dev;
|
||||
struct drm_connector *connector;
|
||||
int my_score, best_score, score;
|
||||
struct drm_crtc **crtcs, *crtc;
|
||||
struct drm_mode_set *modeset;
|
||||
int o;
|
||||
|
||||
if (n == connector_count)
|
||||
return 0;
|
||||
|
||||
connector = connectors[n];
|
||||
|
||||
best_crtcs[n] = NULL;
|
||||
best_score = drm_client_pick_crtcs(client, connectors, connector_count,
|
||||
best_crtcs, modes, n + 1, width, height);
|
||||
if (modes[n] == NULL)
|
||||
return best_score;
|
||||
|
||||
crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
|
||||
if (!crtcs)
|
||||
return best_score;
|
||||
|
||||
my_score = 1;
|
||||
if (connector->status == connector_status_connected)
|
||||
my_score++;
|
||||
if (connector->cmdline_mode.specified)
|
||||
my_score++;
|
||||
if (drm_connector_has_preferred_mode(connector, width, height))
|
||||
my_score++;
|
||||
|
||||
/*
|
||||
* select a crtc for this connector and then attempt to configure
|
||||
* remaining connectors
|
||||
*/
|
||||
drm_client_for_each_modeset(modeset, client) {
|
||||
crtc = modeset->crtc;
|
||||
|
||||
if (!connector_has_possible_crtc(connector, crtc))
|
||||
continue;
|
||||
|
||||
for (o = 0; o < n; o++)
|
||||
if (best_crtcs[o] == crtc)
|
||||
break;
|
||||
|
||||
if (o < n) {
|
||||
/* ignore cloning unless only a single crtc */
|
||||
if (dev->mode_config.num_crtc > 1)
|
||||
continue;
|
||||
|
||||
if (!drm_mode_equal(modes[o], modes[n]))
|
||||
continue;
|
||||
}
|
||||
|
||||
crtcs[n] = crtc;
|
||||
memcpy(crtcs, best_crtcs, n * sizeof(*crtcs));
|
||||
score = my_score + drm_client_pick_crtcs(client, connectors, connector_count,
|
||||
crtcs, modes, n + 1, width, height);
|
||||
if (score > best_score) {
|
||||
best_score = score;
|
||||
memcpy(best_crtcs, crtcs, connector_count * sizeof(*crtcs));
|
||||
}
|
||||
}
|
||||
|
||||
kfree(crtcs);
|
||||
return best_score;
|
||||
}
|
||||
|
||||
/* Try to read the BIOS display configuration and use it for the initial config */
|
||||
static bool drm_client_firmware_config(struct drm_client_dev *client,
|
||||
struct drm_connector **connectors,
|
||||
unsigned int connector_count,
|
||||
struct drm_crtc **crtcs,
|
||||
struct drm_display_mode **modes,
|
||||
struct drm_client_offset *offsets,
|
||||
bool *enabled, int width, int height)
|
||||
{
|
||||
unsigned int count = min_t(unsigned int, connector_count, BITS_PER_LONG);
|
||||
unsigned long conn_configured, conn_seq, mask;
|
||||
struct drm_device *dev = client->dev;
|
||||
int i, j;
|
||||
bool *save_enabled;
|
||||
bool fallback = true, ret = true;
|
||||
int num_connectors_enabled = 0;
|
||||
int num_connectors_detected = 0;
|
||||
struct drm_modeset_acquire_ctx ctx;
|
||||
|
||||
if (!drm_drv_uses_atomic_modeset(dev))
|
||||
return false;
|
||||
|
||||
save_enabled = kcalloc(count, sizeof(bool), GFP_KERNEL);
|
||||
if (!save_enabled)
|
||||
return false;
|
||||
|
||||
drm_modeset_acquire_init(&ctx, 0);
|
||||
|
||||
while (drm_modeset_lock_all_ctx(dev, &ctx) != 0)
|
||||
drm_modeset_backoff(&ctx);
|
||||
|
||||
memcpy(save_enabled, enabled, count);
|
||||
mask = GENMASK(count - 1, 0);
|
||||
conn_configured = 0;
|
||||
retry:
|
||||
conn_seq = conn_configured;
|
||||
for (i = 0; i < count; i++) {
|
||||
struct drm_connector *connector;
|
||||
struct drm_encoder *encoder;
|
||||
struct drm_crtc *new_crtc;
|
||||
|
||||
connector = connectors[i];
|
||||
|
||||
if (conn_configured & BIT(i))
|
||||
continue;
|
||||
|
||||
if (conn_seq == 0 && !connector->has_tile)
|
||||
continue;
|
||||
|
||||
if (connector->status == connector_status_connected)
|
||||
num_connectors_detected++;
|
||||
|
||||
if (!enabled[i]) {
|
||||
DRM_DEBUG_KMS("connector %s not enabled, skipping\n",
|
||||
connector->name);
|
||||
conn_configured |= BIT(i);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (connector->force == DRM_FORCE_OFF) {
|
||||
DRM_DEBUG_KMS("connector %s is disabled by user, skipping\n",
|
||||
connector->name);
|
||||
enabled[i] = false;
|
||||
continue;
|
||||
}
|
||||
|
||||
encoder = connector->state->best_encoder;
|
||||
if (!encoder || WARN_ON(!connector->state->crtc)) {
|
||||
if (connector->force > DRM_FORCE_OFF)
|
||||
goto bail;
|
||||
|
||||
DRM_DEBUG_KMS("connector %s has no encoder or crtc, skipping\n",
|
||||
connector->name);
|
||||
enabled[i] = false;
|
||||
conn_configured |= BIT(i);
|
||||
continue;
|
||||
}
|
||||
|
||||
num_connectors_enabled++;
|
||||
|
||||
new_crtc = connector->state->crtc;
|
||||
|
||||
/*
|
||||
* Make sure we're not trying to drive multiple connectors
|
||||
* with a single CRTC, since our cloning support may not
|
||||
* match the BIOS.
|
||||
*/
|
||||
for (j = 0; j < count; j++) {
|
||||
if (crtcs[j] == new_crtc) {
|
||||
DRM_DEBUG_KMS("fallback: cloned configuration\n");
|
||||
goto bail;
|
||||
}
|
||||
}
|
||||
|
||||
DRM_DEBUG_KMS("looking for cmdline mode on connector %s\n",
|
||||
connector->name);
|
||||
|
||||
/* go for command line mode first */
|
||||
modes[i] = drm_connector_pick_cmdline_mode(connector);
|
||||
|
||||
/* try for preferred next */
|
||||
if (!modes[i]) {
|
||||
DRM_DEBUG_KMS("looking for preferred mode on connector %s %d\n",
|
||||
connector->name, connector->has_tile);
|
||||
modes[i] = drm_connector_has_preferred_mode(connector, width, height);
|
||||
}
|
||||
|
||||
/* No preferred mode marked by the EDID? Are there any modes? */
|
||||
if (!modes[i] && !list_empty(&connector->modes)) {
|
||||
DRM_DEBUG_KMS("using first mode listed on connector %s\n",
|
||||
connector->name);
|
||||
modes[i] = list_first_entry(&connector->modes,
|
||||
struct drm_display_mode,
|
||||
head);
|
||||
}
|
||||
|
||||
/* last resort: use current mode */
|
||||
if (!modes[i]) {
|
||||
/*
|
||||
* IMPORTANT: We want to use the adjusted mode (i.e.
|
||||
* after the panel fitter upscaling) as the initial
|
||||
* config, not the input mode, which is what crtc->mode
|
||||
* usually contains. But since our current
|
||||
* code puts a mode derived from the post-pfit timings
|
||||
* into crtc->mode this works out correctly.
|
||||
*
|
||||
* This is crtc->mode and not crtc->state->mode for the
|
||||
* fastboot check to work correctly.
|
||||
*/
|
||||
DRM_DEBUG_KMS("looking for current mode on connector %s\n",
|
||||
connector->name);
|
||||
modes[i] = &connector->state->crtc->mode;
|
||||
}
|
||||
crtcs[i] = new_crtc;
|
||||
|
||||
DRM_DEBUG_KMS("connector %s on [CRTC:%d:%s]: %dx%d%s\n",
|
||||
connector->name,
|
||||
connector->state->crtc->base.id,
|
||||
connector->state->crtc->name,
|
||||
modes[i]->hdisplay, modes[i]->vdisplay,
|
||||
modes[i]->flags & DRM_MODE_FLAG_INTERLACE ? "i" : "");
|
||||
|
||||
fallback = false;
|
||||
conn_configured |= BIT(i);
|
||||
}
|
||||
|
||||
if ((conn_configured & mask) != mask && conn_configured != conn_seq)
|
||||
goto retry;
|
||||
|
||||
/*
|
||||
* If the BIOS didn't enable everything it could, fall back to have the
|
||||
* same user experiencing of lighting up as much as possible like the
|
||||
* fbdev helper library.
|
||||
*/
|
||||
if (num_connectors_enabled != num_connectors_detected &&
|
||||
num_connectors_enabled < dev->mode_config.num_crtc) {
|
||||
DRM_DEBUG_KMS("fallback: Not all outputs enabled\n");
|
||||
DRM_DEBUG_KMS("Enabled: %i, detected: %i\n", num_connectors_enabled,
|
||||
num_connectors_detected);
|
||||
fallback = true;
|
||||
}
|
||||
|
||||
if (fallback) {
|
||||
bail:
|
||||
DRM_DEBUG_KMS("Not using firmware configuration\n");
|
||||
memcpy(enabled, save_enabled, count);
|
||||
ret = false;
|
||||
}
|
||||
|
||||
drm_modeset_drop_locks(&ctx);
|
||||
drm_modeset_acquire_fini(&ctx);
|
||||
|
||||
kfree(save_enabled);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* drm_client_modeset_probe() - Probe for displays
|
||||
* @client: DRM client
|
||||
* @width: Maximum display mode width (optional)
|
||||
* @height: Maximum display mode height (optional)
|
||||
*
|
||||
* This function sets up display pipelines for enabled connectors and stores the
|
||||
* config in the client's modeset array.
|
||||
*
|
||||
* Returns:
|
||||
* Zero on success or negative error code on failure.
|
||||
*/
|
||||
int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, unsigned int height)
|
||||
{
|
||||
struct drm_connector *connector, **connectors = NULL;
|
||||
struct drm_connector_list_iter conn_iter;
|
||||
struct drm_device *dev = client->dev;
|
||||
unsigned int total_modes_count = 0;
|
||||
struct drm_client_offset *offsets;
|
||||
unsigned int connector_count = 0;
|
||||
struct drm_display_mode **modes;
|
||||
struct drm_crtc **crtcs;
|
||||
int i, ret = 0;
|
||||
bool *enabled;
|
||||
|
||||
DRM_DEBUG_KMS("\n");
|
||||
|
||||
if (!width)
|
||||
width = dev->mode_config.max_width;
|
||||
if (!height)
|
||||
height = dev->mode_config.max_height;
|
||||
|
||||
drm_connector_list_iter_begin(dev, &conn_iter);
|
||||
drm_client_for_each_connector_iter(connector, &conn_iter) {
|
||||
struct drm_connector **tmp;
|
||||
|
||||
tmp = krealloc(connectors, (connector_count + 1) * sizeof(*connectors), GFP_KERNEL);
|
||||
if (!tmp) {
|
||||
ret = -ENOMEM;
|
||||
goto free_connectors;
|
||||
}
|
||||
|
||||
connectors = tmp;
|
||||
drm_connector_get(connector);
|
||||
connectors[connector_count++] = connector;
|
||||
}
|
||||
drm_connector_list_iter_end(&conn_iter);
|
||||
|
||||
if (!connector_count)
|
||||
return 0;
|
||||
|
||||
crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
|
||||
modes = kcalloc(connector_count, sizeof(*modes), GFP_KERNEL);
|
||||
offsets = kcalloc(connector_count, sizeof(*offsets), GFP_KERNEL);
|
||||
enabled = kcalloc(connector_count, sizeof(bool), GFP_KERNEL);
|
||||
if (!crtcs || !modes || !enabled || !offsets) {
|
||||
DRM_ERROR("Memory allocation failed\n");
|
||||
ret = -ENOMEM;
|
||||
goto out;
|
||||
}
|
||||
|
||||
mutex_lock(&client->modeset_mutex);
|
||||
|
||||
mutex_lock(&dev->mode_config.mutex);
|
||||
for (i = 0; i < connector_count; i++)
|
||||
total_modes_count += connectors[i]->funcs->fill_modes(connectors[i], width, height);
|
||||
if (!total_modes_count)
|
||||
DRM_DEBUG_KMS("No connectors reported connected with modes\n");
|
||||
drm_client_connectors_enabled(connectors, connector_count, enabled);
|
||||
|
||||
if (!drm_client_firmware_config(client, connectors, connector_count, crtcs,
|
||||
modes, offsets, enabled, width, height)) {
|
||||
memset(modes, 0, connector_count * sizeof(*modes));
|
||||
memset(crtcs, 0, connector_count * sizeof(*crtcs));
|
||||
memset(offsets, 0, connector_count * sizeof(*offsets));
|
||||
|
||||
if (!drm_client_target_cloned(dev, connectors, connector_count, modes,
|
||||
offsets, enabled, width, height) &&
|
||||
!drm_client_target_preferred(connectors, connector_count, modes,
|
||||
offsets, enabled, width, height))
|
||||
DRM_ERROR("Unable to find initial modes\n");
|
||||
|
||||
DRM_DEBUG_KMS("picking CRTCs for %dx%d config\n",
|
||||
width, height);
|
||||
|
||||
drm_client_pick_crtcs(client, connectors, connector_count,
|
||||
crtcs, modes, 0, width, height);
|
||||
}
|
||||
mutex_unlock(&dev->mode_config.mutex);
|
||||
|
||||
drm_client_modeset_release(client);
|
||||
|
||||
for (i = 0; i < connector_count; i++) {
|
||||
struct drm_display_mode *mode = modes[i];
|
||||
struct drm_crtc *crtc = crtcs[i];
|
||||
struct drm_client_offset *offset = &offsets[i];
|
||||
|
||||
if (mode && crtc) {
|
||||
struct drm_mode_set *modeset = drm_client_find_modeset(client, crtc);
|
||||
struct drm_connector *connector = connectors[i];
|
||||
|
||||
DRM_DEBUG_KMS("desired mode %s set on crtc %d (%d,%d)\n",
|
||||
mode->name, crtc->base.id, offset->x, offset->y);
|
||||
|
||||
if (WARN_ON_ONCE(modeset->num_connectors == DRM_CLIENT_MAX_CLONED_CONNECTORS ||
|
||||
(dev->mode_config.num_crtc > 1 && modeset->num_connectors == 1))) {
|
||||
ret = -EINVAL;
|
||||
break;
|
||||
}
|
||||
|
||||
modeset->mode = drm_mode_duplicate(dev, mode);
|
||||
drm_connector_get(connector);
|
||||
modeset->connectors[modeset->num_connectors++] = connector;
|
||||
modeset->x = offset->x;
|
||||
modeset->y = offset->y;
|
||||
}
|
||||
}
|
||||
|
||||
mutex_unlock(&client->modeset_mutex);
|
||||
out:
|
||||
kfree(crtcs);
|
||||
kfree(modes);
|
||||
kfree(offsets);
|
||||
kfree(enabled);
|
||||
free_connectors:
|
||||
for (i = 0; i < connector_count; i++)
|
||||
drm_connector_put(connectors[i]);
|
||||
kfree(connectors);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* This is a continuation of drm_setup_crtcs() that sets up anything related
|
||||
* to the framebuffer. During initialization, drm_setup_crtcs() is called before
|
||||
|
||||
@ -18,8 +18,6 @@ struct drm_gem_object;
|
||||
struct drm_minor;
|
||||
struct module;
|
||||
|
||||
#define DRM_CLIENT_MAX_CLONED_CONNECTORS 8
|
||||
|
||||
/**
|
||||
* struct drm_client_funcs - DRM client callbacks
|
||||
*/
|
||||
@ -154,8 +152,7 @@ void drm_client_framebuffer_delete(struct drm_client_buffer *buffer);
|
||||
|
||||
int drm_client_modeset_create(struct drm_client_dev *client);
|
||||
void drm_client_modeset_free(struct drm_client_dev *client);
|
||||
void drm_client_modeset_release(struct drm_client_dev *client);
|
||||
struct drm_mode_set *drm_client_find_modeset(struct drm_client_dev *client, struct drm_crtc *crtc);
|
||||
int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, unsigned int height);
|
||||
bool drm_client_panel_rotation(struct drm_mode_set *modeset, unsigned int *rotation);
|
||||
int drm_client_modeset_commit_force(struct drm_client_dev *client);
|
||||
int drm_client_modeset_commit(struct drm_client_dev *client);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user