[Intel-gfx] [RFC v4 15/25] drm/fb-helper: Move modeset config code to drm_client
Noralf Trønnes
noralf at tronnes.org
Fri Apr 13 16:53:44 UTC 2018
Call the function drm_client_find_display().
No functional change apart from making width/height arguments optional.
Some function name/signature changes and whitespace adjustments.
Signed-off-by: Noralf Trønnes <noralf at tronnes.org>
---
drivers/gpu/drm/drm_client.c | 399 ++++++++++++++++++++++++++++++++++++++++
drivers/gpu/drm/drm_fb_helper.c | 371 +------------------------------------
include/drm/drm_client.h | 2 +
include/drm/drm_fb_helper.h | 4 -
4 files changed, 403 insertions(+), 373 deletions(-)
diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c
index c85c13568cf9..27818a467b09 100644
--- a/drivers/gpu/drm/drm_client.c
+++ b/drivers/gpu/drm/drm_client.c
@@ -18,6 +18,10 @@
#include <drm/drm_device.h>
#include <drm/drm_modes.h>
+struct drm_client_display_offset {
+ int x, y;
+};
+
/**
* drm_client_display_create() - Create display structure
* @dev: DRM device
@@ -359,3 +363,398 @@ void drm_client_display_dpms(struct drm_client_display *display, int mode)
drm_client_display_dpms_legacy(display, mode);
}
EXPORT_SYMBOL(drm_client_display_dpms);
+
+static int drm_client_probe_connector_modes(struct drm_device *dev,
+ u32 max_width, u32 max_height)
+{
+ struct drm_connector_list_iter conn_iter;
+ struct drm_connector *connector;
+ int count = 0;
+
+ drm_connector_list_iter_begin(dev, &conn_iter);
+ drm_for_each_connector_iter(connector, &conn_iter) {
+ count += connector->funcs->fill_modes(connector, max_width, max_height);
+ }
+ drm_connector_list_iter_end(&conn_iter);
+
+ return count;
+}
+
+static bool drm_target_cloned(struct drm_device *dev,
+ struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_display_mode **modes,
+ struct drm_client_display_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_equal(modes[j], modes[i]))
+ 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_equal(mode, dmt_mode))
+ 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 void drm_get_tile_offsets(struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_display_mode **modes,
+ struct drm_client_display_offset *offsets,
+ int idx,
+ int h_idx, int v_idx)
+{
+ int i;
+ int hoffset = 0, voffset = 0;
+
+ for (i = 0; i < connector_count; i++) {
+ struct drm_connector *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);
+}
+
+static bool drm_target_preferred(struct drm_connector **connectors,
+ unsigned int connector_count,
+ struct drm_display_mode **modes,
+ struct drm_client_display_offset *offsets,
+ bool *enabled, int width, int height)
+{
+ const u64 mask = BIT_ULL(connector_count) - 1;
+ u64 conn_configured = 0;
+ int tile_pass = 0;
+ int i;
+
+retry:
+ for (i = 0; i < connector_count; i++) {
+ struct drm_connector *connector = connectors[i];
+
+ if (conn_configured & BIT_ULL(i))
+ continue;
+
+ if (!enabled[i]) {
+ 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_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])
+ modes[i] = list_first_entry_or_null(&connector->modes,
+ struct drm_display_mode, head);
+
+ 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 int drm_pick_crtcs(struct drm_client_display *display,
+ 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 = display->dev;
+ int o, my_score, best_score, score;
+ struct drm_connector *connector;
+ struct drm_mode_set *modeset;
+ struct drm_encoder *encoder;
+ struct drm_crtc **crtcs;
+
+ if (n == connector_count)
+ return 0;
+
+ connector = connectors[n];
+
+ best_crtcs[n] = NULL;
+ best_score = drm_pick_crtcs(display, connectors, connector_count,
+ best_crtcs, modes, n + 1, width, height);
+ if (!modes[n])
+ 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++;
+
+ /*
+ * If the DRM device implements atomic hooks and ->best_encoder() is
+ * NULL we fallback to the default drm_atomic_helper_best_encoder()
+ * helper.
+ */
+ if (drm_drv_uses_atomic_modeset(dev) &&
+ !connector->helper_private->best_encoder)
+ encoder = drm_atomic_helper_best_encoder(connector);
+ else
+ encoder = connector->helper_private->best_encoder(connector);
+
+ if (!encoder)
+ goto out;
+
+ /*
+ * select a crtc for this connector and then attempt to configure
+ * remaining connectors
+ */
+ drm_client_display_for_each_modeset(modeset, display) {
+ struct drm_crtc *crtc = modeset->crtc;
+
+ if ((encoder->possible_crtcs & drm_crtc_mask(crtc)) == 0)
+ 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_pick_crtcs(display, connectors, connector_count,
+ crtcs, modes, n + 1, width, height);
+ if (score > best_score) {
+ best_score = score;
+ memcpy(best_crtcs, crtcs,
+ connector_count * sizeof(*crtcs));
+ }
+ }
+out:
+ kfree(crtcs);
+
+ return best_score;
+}
+
+/**
+ * drm_client_find_display() - Find display
+ * @dev: DRM device
+ * @width: Maximum display mode width (optional)
+ * @height: Maximum display mode height (optional)
+ *
+ * This function returns a display the client can use if available.
+ *
+ * Free resources by calling drm_client_display_free().
+ *
+ * Returns:
+ * A &drm_client_display on success, NULL if no connectors are found
+ * or error pointer on failure.
+ */
+struct drm_client_display *
+drm_client_find_display(struct drm_device *dev, unsigned int width, unsigned int height)
+{
+ struct drm_client_display_offset *offsets;
+ struct drm_client_display *display;
+ struct drm_connector **connectors;
+ struct drm_display_mode **modes;
+ struct drm_crtc **crtcs;
+ int i, connector_count;
+ bool *enabled;
+
+ DRM_DEBUG_KMS("\n");
+
+ if (!width)
+ width = dev->mode_config.max_width;
+ if (!height)
+ height = dev->mode_config.max_height;
+
+ mutex_lock(&dev->mode_config.mutex);
+ if (!drm_client_probe_connector_modes(dev, width, height))
+ DRM_DEBUG_KMS("No connectors reported connected with modes\n");
+
+ if (dev->driver->initial_client_display) {
+ display = dev->driver->initial_client_display(dev, width, height);
+ if (display) {
+ mutex_unlock(&dev->mode_config.mutex);
+ return display;
+ }
+ }
+
+ connector_count = drm_connector_get_all(dev, &connectors);
+ if (connector_count < 1)
+ return NULL;
+
+ enabled = drm_connector_get_enabled_status(connectors, connector_count);
+ crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
+ modes = kcalloc(connector_count, sizeof(*modes), GFP_KERNEL);
+ offsets = kcalloc(connector_count, sizeof(*offsets), GFP_KERNEL);
+ if (!crtcs || !modes || !enabled || !offsets) {
+ DRM_ERROR("Memory allocation failed\n");
+ display = ERR_PTR(-ENOMEM);
+ goto out;
+ }
+
+ display = drm_client_display_create(dev);
+ if (IS_ERR(display))
+ goto out;
+
+ if (!drm_target_cloned(dev, connectors, connector_count,
+ modes, offsets, enabled, width, height) &&
+ !drm_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_pick_crtcs(display, connectors, connector_count, crtcs, modes, 0, width, height);
+
+ /* need to set the modesets up here for use later */
+ /* fill out the connector<->crtc mappings into the modesets */
+
+ for (i = 0; i < connector_count; i++) {
+ struct drm_client_display_offset *offset = &offsets[i];
+ struct drm_connector *connector = connectors[i];
+ struct drm_display_mode *mode = modes[i];
+ struct drm_crtc *crtc = crtcs[i];
+
+ if (mode && crtc) {
+ struct drm_mode_set *modeset;
+
+ modeset = drm_client_display_find_modeset(display, crtc);
+ if (WARN_ON(!modeset)) {
+ drm_client_display_free(display);
+ display = ERR_PTR(-EINVAL);
+ goto out;
+ }
+
+ DRM_DEBUG_KMS("desired mode %s set on crtc %d (%d,%d)\n",
+ mode->name, modeset->crtc->base.id, offset->x, offset->y);
+
+ 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;
+ }
+ }
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ drm_connector_put_all(connectors, connector_count);
+ kfree(crtcs);
+ kfree(modes);
+ kfree(offsets);
+ kfree(enabled);
+
+ return display;
+}
+EXPORT_SYMBOL(drm_client_find_display);
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 6ee61f195321..01d8840930a3 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -1558,386 +1558,19 @@ void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helpe
}
EXPORT_SYMBOL(drm_fb_helper_fill_var);
-static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper,
- uint32_t maxX,
- uint32_t maxY)
-{
- struct drm_connector_list_iter conn_iter;
- struct drm_connector *connector;
- int count = 0;
-
- drm_connector_list_iter_begin(fb_helper->dev, &conn_iter);
- drm_for_each_connector_iter(connector, &conn_iter) {
- count += connector->funcs->fill_modes(connector, maxX, maxY);
- }
- drm_connector_list_iter_end(&conn_iter);
-
- return count;
-}
-
-static bool drm_target_cloned(struct drm_fb_helper *fb_helper,
- struct drm_connector **connectors,
- unsigned int connector_count,
- struct drm_display_mode **modes,
- struct drm_fb_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 (fb_helper->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_equal(modes[j], modes[i]))
- 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(fb_helper->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_equal(mode, dmt_mode))
- 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_get_tile_offsets(struct drm_connector **connectors,
- unsigned int connector_count,
- struct drm_display_mode **modes,
- struct drm_fb_offset *offsets,
- int idx,
- int h_idx, int v_idx)
-{
- int i;
- int hoffset = 0, voffset = 0;
-
- for (i = 0; i < connector_count; i++) {
- struct drm_connector *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_target_preferred(struct drm_connector **connectors,
- unsigned int connector_count,
- struct drm_display_mode **modes,
- struct drm_fb_offset *offsets,
- bool *enabled, int width, int height)
-{
- const u64 mask = BIT_ULL(connector_count) - 1;
- u64 conn_configured = 0;
- int tile_pass = 0;
- int i;
-
-retry:
- for (i = 0; i < connector_count; i++) {
- struct drm_connector *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_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])
- modes[i] = list_first_entry_or_null(&connector->modes, struct drm_display_mode, head);
-
- 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 int drm_pick_crtcs(struct drm_client_display *display,
- 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 = display->dev;
- int o, my_score, best_score, score;
- struct drm_connector *connector;
- const struct drm_connector_helper_funcs *connector_funcs;
- struct drm_mode_set *modeset;
- struct drm_encoder *encoder;
- struct drm_crtc **crtcs;
-
- if (n == connector_count)
- return 0;
-
- connector = connectors[n];
-
- best_crtcs[n] = NULL;
- best_score = drm_pick_crtcs(display, 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++;
-
- connector_funcs = connector->helper_private;
-
- /*
- * If the DRM device implements atomic hooks and ->best_encoder() is
- * NULL we fallback to the default drm_atomic_helper_best_encoder()
- * helper.
- */
- if (drm_drv_uses_atomic_modeset(dev) &&
- !connector_funcs->best_encoder)
- encoder = drm_atomic_helper_best_encoder(connector);
- else
- encoder = connector_funcs->best_encoder(connector);
-
- if (!encoder)
- goto out;
-
- /*
- * select a crtc for this connector and then attempt to configure
- * remaining connectors
- */
- drm_client_display_for_each_modeset(modeset, display) {
- struct drm_crtc *crtc = modeset->crtc;
-
- if ((encoder->possible_crtcs & drm_crtc_mask(crtc)) == 0)
- 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_pick_crtcs(display, connectors, connector_count,
- crtcs, modes, n + 1, width, height);
- if (score > best_score) {
- best_score = score;
- memcpy(best_crtcs, crtcs,
- connector_count * sizeof(*crtcs));
- }
- }
-out:
- kfree(crtcs);
- return best_score;
-}
-
static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,
u32 width, u32 height)
{
- struct drm_device *dev = fb_helper->dev;
struct drm_client_display *display;
- struct drm_connector **connectors;
- struct drm_display_mode **modes;
- struct drm_fb_offset *offsets;
- struct drm_crtc **crtcs;
- int i, connector_count;
- bool *enabled;
- DRM_DEBUG_KMS("\n");
- /* prevent concurrent modification of connector_count by hotplug */
lockdep_assert_held(&fb_helper->lock);
- mutex_lock(&dev->mode_config.mutex);
- if (drm_fb_helper_probe_connector_modes(fb_helper, width, height) == 0)
- DRM_DEBUG_KMS("No connectors reported connected with modes\n");
-
- if (dev->driver->initial_client_display) {
- display = dev->driver->initial_client_display(dev, width, height);
- if (display) {
- drm_client_display_free(fb_helper->display);
- fb_helper->display = display;
- mutex_unlock(&dev->mode_config.mutex);
- return;
- }
- }
-
- connector_count = drm_connector_get_all(dev, &connectors);
- if (connector_count < 1)
+ display = drm_client_find_display(fb_helper->dev, width, height);
+ if (IS_ERR_OR_NULL(display))
return;
- enabled = drm_connector_get_enabled_status(connectors, connector_count);
- crtcs = kcalloc(connector_count, sizeof(*crtcs), GFP_KERNEL);
- modes = kcalloc(connector_count, sizeof(*modes), GFP_KERNEL);
- offsets = kcalloc(connector_count, sizeof(*offsets), GFP_KERNEL);
- if (!crtcs || !modes || !enabled || !offsets) {
- DRM_ERROR("Memory allocation failed\n");
- goto out;
- }
-
- display = drm_client_display_create(dev);
- if (IS_ERR(display))
- goto out;
-
- if (!drm_target_cloned(fb_helper, connectors, connector_count,
- modes, offsets, enabled, width, height) &&
- !drm_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_pick_crtcs(display, connectors, connector_count, crtcs, modes, 0, width, height);
-
- /* need to set the modesets up here for use later */
- /* fill out the connector<->crtc mappings into the modesets */
-
- for (i = 0; i < connector_count; i++) {
- struct drm_connector *connector = connectors[i];
- struct drm_display_mode *mode = modes[i];
- struct drm_crtc *crtc = crtcs[i];
- struct drm_fb_offset *offset = &offsets[i];
-
- if (mode && crtc) {
- struct drm_mode_set *modeset;
-
- modeset = drm_client_display_find_modeset(display, crtc);
- if (WARN_ON(!modeset)) {
- drm_client_display_free(display);
- goto out;
- }
-
- DRM_DEBUG_KMS("desired mode %s set on crtc %d (%d,%d)\n",
- mode->name, modeset->crtc->base.id, offset->x, offset->y);
-
- 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;
- }
- }
-
drm_client_display_free(fb_helper->display);
fb_helper->display = display;
-out:
- mutex_unlock(&dev->mode_config.mutex);
- drm_connector_put_all(connectors, connector_count);
- kfree(crtcs);
- kfree(modes);
- kfree(offsets);
- kfree(enabled);
}
/*
diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h
index ed028f5877d0..27d2a46cd94a 100644
--- a/include/drm/drm_client.h
+++ b/include/drm/drm_client.h
@@ -48,5 +48,7 @@ bool drm_client_display_panel_rotation(struct drm_connector *connector,
unsigned int *rotation);
int drm_client_display_restore(struct drm_client_display *display);
void drm_client_display_dpms(struct drm_client_display *display, int mode);
+struct drm_client_display *
+drm_client_find_display(struct drm_device *dev, unsigned int width, unsigned int height);
#endif
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index a1e1ab1247c5..5f66f253a97b 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -41,10 +41,6 @@ enum mode_set_atomic {
ENTER_ATOMIC_MODE_SET,
};
-struct drm_fb_offset {
- int x, y;
-};
-
/**
* struct drm_fb_helper_surface_size - describes fbdev size and scanout surface size
* @fb_width: fbdev width
--
2.15.1
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