// SPDX-License-Identifier: GPL-2.0 OR MIT /************************************************************************** * * Copyright 2009-2015 VMware, Inc., Palo Alto, CA., USA * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * **************************************************************************/ #include "vmwgfx_kms.h" #include #include #include #define vmw_crtc_to_ldu(x) \ container_of(x, struct vmw_legacy_display_unit, base.crtc) #define vmw_encoder_to_ldu(x) \ container_of(x, struct vmw_legacy_display_unit, base.encoder) #define vmw_connector_to_ldu(x) \ container_of(x, struct vmw_legacy_display_unit, base.connector) struct vmw_legacy_display { struct list_head active; unsigned num_active; unsigned last_num_active; struct vmw_framebuffer *fb; }; /** * Display unit using the legacy register interface. */ struct vmw_legacy_display_unit { struct vmw_display_unit base; struct list_head active; }; static void vmw_ldu_destroy(struct vmw_legacy_display_unit *ldu) { list_del_init(&ldu->active); vmw_du_cleanup(&ldu->base); kfree(ldu); } /* * Legacy Display Unit CRTC functions */ static void vmw_ldu_crtc_destroy(struct drm_crtc *crtc) { vmw_ldu_destroy(vmw_crtc_to_ldu(crtc)); } static int vmw_ldu_commit_list(struct vmw_private *dev_priv) { struct vmw_legacy_display *lds = dev_priv->ldu_priv; struct vmw_legacy_display_unit *entry; struct drm_framebuffer *fb = NULL; struct drm_crtc *crtc = NULL; int i; /* If there is no display topology the host just assumes * that the guest will set the same layout as the host. */ if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) { int w = 0, h = 0; list_for_each_entry(entry, &lds->active, active) { crtc = &entry->base.crtc; w = max(w, crtc->x + crtc->mode.hdisplay); h = max(h, crtc->y + crtc->mode.vdisplay); } if (crtc == NULL) return 0; fb = crtc->primary->state->fb; return vmw_kms_write_svga(dev_priv, w, h, fb->pitches[0], fb->format->cpp[0] * 8, fb->format->depth); } if (!list_empty(&lds->active)) { entry = list_entry(lds->active.next, typeof(*entry), active); fb = entry->base.crtc.primary->state->fb; vmw_kms_write_svga(dev_priv, fb->width, fb->height, fb->pitches[0], fb->format->cpp[0] * 8, fb->format->depth); } /* Make sure we always show something. */ vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS, lds->num_active ? lds->num_active : 1); i = 0; list_for_each_entry(entry, &lds->active, active) { crtc = &entry->base.crtc; vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, i); vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, !i); vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_X, crtc->x); vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_Y, crtc->y); vmw_write(dev_priv, SVGA_REG_DISPLAY_WIDTH, crtc->mode.hdisplay); vmw_write(dev_priv, SVGA_REG_DISPLAY_HEIGHT, crtc->mode.vdisplay); vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); i++; } BUG_ON(i != lds->num_active); lds->last_num_active = lds->num_active; return 0; } static int vmw_ldu_del_active(struct vmw_private *vmw_priv, struct vmw_legacy_display_unit *ldu) { struct vmw_legacy_display *ld = vmw_priv->ldu_priv; if (list_empty(&ldu->active)) return 0; /* Must init otherwise list_empty(&ldu->active) will not work. */ list_del_init(&ldu->active); if (--(ld->num_active) == 0) { BUG_ON(!ld->fb); if (ld->fb->unpin) ld->fb->unpin(ld->fb); ld->fb = NULL; } return 0; } static int vmw_ldu_add_active(struct vmw_private *vmw_priv, struct vmw_legacy_display_unit *ldu, struct vmw_framebuffer *vfb) { struct vmw_legacy_display *ld = vmw_priv->ldu_priv; struct vmw_legacy_display_unit *entry; struct list_head *at; BUG_ON(!ld->num_active && ld->fb); if (vfb != ld->fb) { if (ld->fb && ld->fb->unpin) ld->fb->unpin(ld->fb); vmw_svga_enable(vmw_priv); if (vfb->pin) vfb->pin(vfb); ld->fb = vfb; } if (!list_empty(&ldu->active)) return 0; at = &ld->active; list_for_each_entry(entry, &ld->active, active) { if (entry->base.unit > ldu->base.unit) break; at = &entry->active; } list_add(&ldu->active, at); ld->num_active++; return 0; } /** * vmw_ldu_crtc_mode_set_nofb - Enable svga * * @crtc: CRTC associated with the new screen * * For LDU, just enable the svga */ static void vmw_ldu_crtc_mode_set_nofb(struct drm_crtc *crtc) { } /** * vmw_ldu_crtc_atomic_enable - Noop * * @crtc: CRTC associated with the new screen * * This is called after a mode set has been completed. Here's * usually a good place to call vmw_ldu_add_active/vmw_ldu_del_active * but since for LDU the display plane is closely tied to the * CRTC, it makes more sense to do those at plane update time. */ static void vmw_ldu_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { } /** * vmw_ldu_crtc_atomic_disable - Turns off CRTC * * @crtc: CRTC to be turned off */ static void vmw_ldu_crtc_atomic_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { } static const struct drm_crtc_funcs vmw_legacy_crtc_funcs = { .gamma_set = vmw_du_crtc_gamma_set, .destroy = vmw_ldu_crtc_destroy, .reset = vmw_du_crtc_reset, .atomic_duplicate_state = vmw_du_crtc_duplicate_state, .atomic_destroy_state = vmw_du_crtc_destroy_state, .set_config = vmw_kms_set_config, }; /* * Legacy Display Unit encoder functions */ static void vmw_ldu_encoder_destroy(struct drm_encoder *encoder) { vmw_ldu_destroy(vmw_encoder_to_ldu(encoder)); } static const struct drm_encoder_funcs vmw_legacy_encoder_funcs = { .destroy = vmw_ldu_encoder_destroy, }; /* * Legacy Display Unit connector functions */ static void vmw_ldu_connector_destroy(struct drm_connector *connector) { vmw_ldu_destroy(vmw_connector_to_ldu(connector)); } static const struct drm_connector_funcs vmw_legacy_connector_funcs = { .dpms = vmw_du_connector_dpms, .detect = vmw_du_connector_detect, .fill_modes = vmw_du_connector_fill_modes, .set_property = vmw_du_connector_set_property, .destroy = vmw_ldu_connector_destroy, .reset = vmw_du_connector_reset, .atomic_duplicate_state = vmw_du_connector_duplicate_state, .atomic_destroy_state = vmw_du_connector_destroy_state, .atomic_set_property = vmw_du_connector_atomic_set_property, .atomic_get_property = vmw_du_connector_atomic_get_property, }; static const struct drm_connector_helper_funcs vmw_ldu_connector_helper_funcs = { .best_encoder = drm_atomic_helper_best_encoder, }; /* * Legacy Display Plane Functions */ static void vmw_ldu_primary_plane_atomic_update(struct drm_plane *plane, struct drm_plane_state *old_state) { struct vmw_private *dev_priv; struct vmw_legacy_display_unit *ldu; struct vmw_framebuffer *vfb; struct drm_framebuffer *fb; struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc; ldu = vmw_crtc_to_ldu(crtc); dev_priv = vmw_priv(plane->dev); fb = plane->state->fb; vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL; if (vfb) vmw_ldu_add_active(dev_priv, ldu, vfb); else vmw_ldu_del_active(dev_priv, ldu); vmw_ldu_commit_list(dev_priv); } static const struct drm_plane_funcs vmw_ldu_plane_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, .destroy = vmw_du_primary_plane_destroy, .reset = vmw_du_plane_reset, .atomic_duplicate_state = vmw_du_plane_duplicate_state, .atomic_destroy_state = vmw_du_plane_destroy_state, }; static const struct drm_plane_funcs vmw_ldu_cursor_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, .destroy = vmw_du_cursor_plane_destroy, .reset = vmw_du_plane_reset, .atomic_duplicate_state = vmw_du_plane_duplicate_state, .atomic_destroy_state = vmw_du_plane_destroy_state, }; /* * Atomic Helpers */ static const struct drm_plane_helper_funcs vmw_ldu_cursor_plane_helper_funcs = { .atomic_check = vmw_du_cursor_plane_atomic_check, .atomic_update = vmw_du_cursor_plane_atomic_update, .prepare_fb = vmw_du_cursor_plane_prepare_fb, .cleanup_fb = vmw_du_plane_cleanup_fb, }; static const struct drm_plane_helper_funcs vmw_ldu_primary_plane_helper_funcs = { .atomic_check = vmw_du_primary_plane_atomic_check, .atomic_update = vmw_ldu_primary_plane_atomic_update, }; static const struct drm_crtc_helper_funcs vmw_ldu_crtc_helper_funcs = { .mode_set_nofb = vmw_ldu_crtc_mode_set_nofb, .atomic_check = vmw_du_crtc_atomic_check, .atomic_begin = vmw_du_crtc_atomic_begin, .atomic_flush = vmw_du_crtc_atomic_flush, .atomic_enable = vmw_ldu_crtc_atomic_enable, .atomic_disable = vmw_ldu_crtc_atomic_disable, }; static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit) { struct vmw_legacy_display_unit *ldu; struct drm_device *dev = dev_priv->dev; struct drm_connector *connector; struct drm_encoder *encoder; struct drm_plane *primary, *cursor; struct drm_crtc *crtc; int ret; ldu = kzalloc(sizeof(*ldu), GFP_KERNEL); if (!ldu) return -ENOMEM; ldu->base.unit = unit; crtc = &ldu->base.crtc; encoder = &ldu->base.encoder; connector = &ldu->base.connector; primary = &ldu->base.primary; cursor = &ldu->base.cursor; INIT_LIST_HEAD(&ldu->active); ldu->base.pref_active = (unit == 0); ldu->base.pref_width = dev_priv->initial_width; ldu->base.pref_height = dev_priv->initial_height; ldu->base.pref_mode = NULL; /* * Remove this after enabling atomic because property values can * only exist in a state object */ ldu->base.is_implicit = true; /* Initialize primary plane */ vmw_du_plane_reset(primary); ret = drm_universal_plane_init(dev, &ldu->base.primary, 0, &vmw_ldu_plane_funcs, vmw_primary_plane_formats, ARRAY_SIZE(vmw_primary_plane_formats), NULL, DRM_PLANE_TYPE_PRIMARY, NULL); if (ret) { DRM_ERROR("Failed to initialize primary plane"); goto err_free; } drm_plane_helper_add(primary, &vmw_ldu_primary_plane_helper_funcs); /* Initialize cursor plane */ vmw_du_plane_reset(cursor); ret = drm_universal_plane_init(dev, &ldu->base.cursor, 0, &vmw_ldu_cursor_funcs, vmw_cursor_plane_formats, ARRAY_SIZE(vmw_cursor_plane_formats), NULL, DRM_PLANE_TYPE_CURSOR, NULL); if (ret) { DRM_ERROR("Failed to initialize cursor plane"); drm_plane_cleanup(&ldu->base.primary); goto err_free; } drm_plane_helper_add(cursor, &vmw_ldu_cursor_plane_helper_funcs); vmw_du_connector_reset(connector); ret = drm_connector_init(dev, connector, &vmw_legacy_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); if (ret) { DRM_ERROR("Failed to initialize connector\n"); goto err_free; } drm_connector_helper_add(connector, &vmw_ldu_connector_helper_funcs); connector->status = vmw_du_connector_detect(connector, true); vmw_connector_state_to_vcs(connector->state)->is_implicit = true; ret = drm_encoder_init(dev, encoder, &vmw_legacy_encoder_funcs, DRM_MODE_ENCODER_VIRTUAL, NULL); if (ret) { DRM_ERROR("Failed to initialize encoder\n"); goto err_free_connector; } (void) drm_connector_attach_encoder(connector, encoder); encoder->possible_crtcs = (1 << unit); encoder->possible_clones = 0; ret = drm_connector_register(connector); if (ret) { DRM_ERROR("Failed to register connector\n"); goto err_free_encoder; } vmw_du_crtc_reset(crtc); ret = drm_crtc_init_with_planes(dev, crtc, &ldu->base.primary, &ldu->base.cursor, &vmw_legacy_crtc_funcs, NULL); if (ret) { DRM_ERROR("Failed to initialize CRTC\n"); goto err_free_unregister; } drm_crtc_helper_add(crtc, &vmw_ldu_crtc_helper_funcs); drm_mode_crtc_set_gamma_size(crtc, 256); drm_object_attach_property(&connector->base, dev_priv->hotplug_mode_update_property, 1); drm_object_attach_property(&connector->base, dev->mode_config.suggested_x_property, 0); drm_object_attach_property(&connector->base, dev->mode_config.suggested_y_property, 0); if (dev_priv->implicit_placement_property) drm_object_attach_property (&connector->base, dev_priv->implicit_placement_property, 1); return 0; err_free_unregister: drm_connector_unregister(connector); err_free_encoder: drm_encoder_cleanup(encoder); err_free_connector: drm_connector_cleanup(connector); err_free: kfree(ldu); return ret; } int vmw_kms_ldu_init_display(struct vmw_private *dev_priv) { struct drm_device *dev = dev_priv->dev; int i, ret; if (dev_priv->ldu_priv) { DRM_INFO("ldu system already on\n"); return -EINVAL; } dev_priv->ldu_priv = kmalloc(sizeof(*dev_priv->ldu_priv), GFP_KERNEL); if (!dev_priv->ldu_priv) return -ENOMEM; INIT_LIST_HEAD(&dev_priv->ldu_priv->active); dev_priv->ldu_priv->num_active = 0; dev_priv->ldu_priv->last_num_active = 0; dev_priv->ldu_priv->fb = NULL; /* for old hardware without multimon only enable one display */ if (dev_priv->capabilities & SVGA_CAP_MULTIMON) ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); else ret = drm_vblank_init(dev, 1); if (ret != 0) goto err_free; vmw_kms_create_implicit_placement_property(dev_priv, true); if (dev_priv->capabilities & SVGA_CAP_MULTIMON) for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) vmw_ldu_init(dev_priv, i); else vmw_ldu_init(dev_priv, 0); dev_priv->active_display_unit = vmw_du_legacy; DRM_INFO("Legacy Display Unit initialized\n"); return 0; err_free: kfree(dev_priv->ldu_priv); dev_priv->ldu_priv = NULL; return ret; } int vmw_kms_ldu_close_display(struct vmw_private *dev_priv) { if (!dev_priv->ldu_priv) return -ENOSYS; BUG_ON(!list_empty(&dev_priv->ldu_priv->active)); kfree(dev_priv->ldu_priv); return 0; } int vmw_kms_ldu_do_bo_dirty(struct vmw_private *dev_priv, struct vmw_framebuffer *framebuffer, unsigned int flags, unsigned int color, struct drm_clip_rect *clips, unsigned int num_clips, int increment) { size_t fifo_size; int i; struct { uint32_t header; SVGAFifoCmdUpdate body; } *cmd; fifo_size = sizeof(*cmd) * num_clips; cmd = vmw_fifo_reserve(dev_priv, fifo_size); if (unlikely(cmd == NULL)) { DRM_ERROR("Fifo reserve failed.\n"); return -ENOMEM; } memset(cmd, 0, fifo_size); for (i = 0; i < num_clips; i++, clips += increment) { cmd[i].header = SVGA_CMD_UPDATE; cmd[i].body.x = clips->x1; cmd[i].body.y = clips->y1; cmd[i].body.width = clips->x2 - clips->x1; cmd[i].body.height = clips->y2 - clips->y1; } vmw_fifo_commit(dev_priv, fifo_size); return 0; }