/* * Copyright (C) 2013-2017 Oracle Corporation * This file is based on ast_mode.c * Copyright 2012 Red Hat Inc. * Parts based on xf86-video-ast * Copyright (c) 2005 ASPEED Technology Inc. * * 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 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. * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * */ /* * Authors: Dave Airlie * Michael Thayer */ #include #include #include #include "vbox_drv.h" #include "vboxvideo.h" #include "hgsmi_channels.h" static int vbox_cursor_set2(struct drm_crtc *crtc, struct drm_file *file_priv, u32 handle, u32 width, u32 height, s32 hot_x, s32 hot_y); static int vbox_cursor_move(struct drm_crtc *crtc, int x, int y); /** * Set a graphics mode. Poke any required values into registers, do an HGSMI * mode set and tell the host we support advanced graphics functions. */ static void vbox_do_modeset(struct drm_crtc *crtc, const struct drm_display_mode *mode) { struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); struct vbox_private *vbox; int width, height, bpp, pitch; u16 flags; s32 x_offset, y_offset; vbox = crtc->dev->dev_private; width = mode->hdisplay ? mode->hdisplay : 640; height = mode->vdisplay ? mode->vdisplay : 480; bpp = crtc->enabled ? CRTC_FB(crtc)->format->cpp[0] * 8 : 32; pitch = crtc->enabled ? CRTC_FB(crtc)->pitches[0] : width * bpp / 8; x_offset = vbox->single_framebuffer ? crtc->x : vbox_crtc->x_hint; y_offset = vbox->single_framebuffer ? crtc->y : vbox_crtc->y_hint; /* * This is the old way of setting graphics modes. It assumed one screen * and a frame-buffer at the start of video RAM. On older versions of * VirtualBox, certain parts of the code still assume that the first * screen is programmed this way, so try to fake it. */ if (vbox_crtc->crtc_id == 0 && crtc->enabled && vbox_crtc->fb_offset / pitch < 0xffff - crtc->y && vbox_crtc->fb_offset % (bpp / 8) == 0) { vbox_write_ioport(VBE_DISPI_INDEX_XRES, width); vbox_write_ioport(VBE_DISPI_INDEX_YRES, height); vbox_write_ioport(VBE_DISPI_INDEX_VIRT_WIDTH, pitch * 8 / bpp); vbox_write_ioport(VBE_DISPI_INDEX_BPP, CRTC_FB(crtc)->format->cpp[0] * 8); vbox_write_ioport(VBE_DISPI_INDEX_ENABLE, VBE_DISPI_ENABLED); vbox_write_ioport( VBE_DISPI_INDEX_X_OFFSET, vbox_crtc->fb_offset % pitch / bpp * 8 + crtc->x); vbox_write_ioport(VBE_DISPI_INDEX_Y_OFFSET, vbox_crtc->fb_offset / pitch + crtc->y); } flags = VBVA_SCREEN_F_ACTIVE; flags |= (crtc->enabled && !vbox_crtc->blanked) ? 0 : VBVA_SCREEN_F_BLANK; flags |= vbox_crtc->disconnected ? VBVA_SCREEN_F_DISABLED : 0; hgsmi_process_display_info(vbox->guest_pool, vbox_crtc->crtc_id, x_offset, y_offset, crtc->x * bpp / 8 + crtc->y * pitch, pitch, width, height, vbox_crtc->blanked ? 0 : bpp, flags); } static int vbox_set_view(struct drm_crtc *crtc) { struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); struct vbox_private *vbox = crtc->dev->dev_private; struct vbva_infoview *p; /* * Tell the host about the view. This design originally targeted the * Windows XP driver architecture and assumed that each screen would * have a dedicated frame buffer with the command buffer following it, * the whole being a "view". The host works out which screen a command * buffer belongs to by checking whether it is in the first view, then * whether it is in the second and so on. The first match wins. We * cheat around this by making the first view be the managed memory * plus the first command buffer, the second the same plus the second * buffer and so on. */ p = hgsmi_buffer_alloc(vbox->guest_pool, sizeof(*p), HGSMI_CH_VBVA, VBVA_INFO_VIEW); if (!p) return -ENOMEM; p->view_index = vbox_crtc->crtc_id; p->view_offset = vbox_crtc->fb_offset; p->view_size = vbox->available_vram_size - vbox_crtc->fb_offset + vbox_crtc->crtc_id * VBVA_MIN_BUFFER_SIZE; p->max_screen_size = vbox->available_vram_size - vbox_crtc->fb_offset; hgsmi_buffer_submit(vbox->guest_pool, p); hgsmi_buffer_free(vbox->guest_pool, p); return 0; } static void vbox_crtc_dpms(struct drm_crtc *crtc, int mode) { struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); struct vbox_private *vbox = crtc->dev->dev_private; switch (mode) { case DRM_MODE_DPMS_ON: vbox_crtc->blanked = false; break; case DRM_MODE_DPMS_STANDBY: case DRM_MODE_DPMS_SUSPEND: case DRM_MODE_DPMS_OFF: vbox_crtc->blanked = true; break; } mutex_lock(&vbox->hw_mutex); vbox_do_modeset(crtc, &crtc->hwmode); mutex_unlock(&vbox->hw_mutex); } static bool vbox_crtc_mode_fixup(struct drm_crtc *crtc, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { return true; } /* * Try to map the layout of virtual screens to the range of the input device. * Return true if we need to re-set the crtc modes due to screen offset * changes. */ static bool vbox_set_up_input_mapping(struct vbox_private *vbox) { struct drm_crtc *crtci; struct drm_connector *connectori; struct drm_framebuffer *fb1 = NULL; bool single_framebuffer = true; bool old_single_framebuffer = vbox->single_framebuffer; u16 width = 0, height = 0; /* * Are we using an X.Org-style single large frame-buffer for all crtcs? * If so then screen layout can be deduced from the crtc offsets. * Same fall-back if this is the fbdev frame-buffer. */ list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) { if (!fb1) { fb1 = CRTC_FB(crtci); if (to_vbox_framebuffer(fb1) == &vbox->fbdev->afb) break; } else if (CRTC_FB(crtci) && fb1 != CRTC_FB(crtci)) { single_framebuffer = false; } } if (single_framebuffer) { list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) { if (to_vbox_crtc(crtci)->crtc_id != 0) continue; vbox->single_framebuffer = true; vbox->input_mapping_width = CRTC_FB(crtci)->width; vbox->input_mapping_height = CRTC_FB(crtci)->height; return old_single_framebuffer != vbox->single_framebuffer; } } /* Otherwise calculate the total span of all screens. */ list_for_each_entry(connectori, &vbox->ddev.mode_config.connector_list, head) { struct vbox_connector *vbox_connector = to_vbox_connector(connectori); struct vbox_crtc *vbox_crtc = vbox_connector->vbox_crtc; width = max_t(u16, width, vbox_crtc->x_hint + vbox_connector->mode_hint.width); height = max_t(u16, height, vbox_crtc->y_hint + vbox_connector->mode_hint.height); } vbox->single_framebuffer = false; vbox->input_mapping_width = width; vbox->input_mapping_height = height; return old_single_framebuffer != vbox->single_framebuffer; } static int vbox_fb_pin(struct drm_framebuffer *fb, u32 pl_flag, u64 *addr) { struct vbox_bo *bo = gem_to_vbox_bo(to_vbox_framebuffer(fb)->obj); int ret; ret = vbox_bo_reserve(bo, false); if (ret) return ret; ret = vbox_bo_pin(bo, pl_flag, addr); vbox_bo_unreserve(bo); return ret; } static void vbox_fb_unpin(struct drm_framebuffer *fb) { struct vbox_bo *bo; int ret; if (!fb) return; bo = gem_to_vbox_bo(to_vbox_framebuffer(fb)->obj); ret = vbox_bo_reserve(bo, false); if (ret) { DRM_ERROR("Error %d reserving fb bo, leaving it pinned\n", ret); return; } vbox_bo_unpin(bo); vbox_bo_unreserve(bo); } static int vbox_crtc_set_base_and_mode(struct drm_crtc *crtc, struct drm_framebuffer *old_fb, struct drm_framebuffer *new_fb, struct drm_display_mode *mode, int x, int y) { struct vbox_private *vbox = crtc->dev->dev_private; struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); u64 gpu_addr; int ret; /* Prepare: pin the new framebuffer bo */ ret = vbox_fb_pin(new_fb, TTM_PL_FLAG_VRAM, &gpu_addr); if (ret) { DRM_WARN("Error %d pinning new fb, out of video mem?\n", ret); return ret; } /* Commit: Update hardware to use the new fb */ mutex_lock(&vbox->hw_mutex); if (&vbox->fbdev->afb == to_vbox_framebuffer(new_fb)) vbox_fbdev_set_base(vbox, gpu_addr); vbox_crtc->fb_offset = gpu_addr; /* vbox_do_modeset() checks vbox->single_framebuffer so update it now */ if (mode && vbox_set_up_input_mapping(vbox)) { struct drm_crtc *crtci; list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) { if (crtci == crtc) continue; vbox_do_modeset(crtci, &crtci->mode); } } vbox_set_view(crtc); vbox_do_modeset(crtc, mode ? mode : &crtc->mode); if (mode) hgsmi_update_input_mapping(vbox->guest_pool, 0, 0, vbox->input_mapping_width, vbox->input_mapping_height); mutex_unlock(&vbox->hw_mutex); /* Cleanup: unpin the old fb */ vbox_fb_unpin(old_fb); return 0; } static int vbox_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode, int x, int y, struct drm_framebuffer *old_fb) { return vbox_crtc_set_base_and_mode(crtc, old_fb, CRTC_FB(crtc), mode, x, y); } static int vbox_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, struct drm_pending_vblank_event *event, uint32_t page_flip_flags, struct drm_modeset_acquire_ctx *ctx) { unsigned long flags; int rc; rc = vbox_crtc_set_base_and_mode(crtc, CRTC_FB(crtc), fb, NULL, 0, 0); if (rc) return rc; spin_lock_irqsave(&crtc->dev->event_lock, flags); if (event) drm_crtc_send_vblank_event(crtc, event); spin_unlock_irqrestore(&crtc->dev->event_lock, flags); return 0; } static void vbox_crtc_disable(struct drm_crtc *crtc) { } static void vbox_crtc_prepare(struct drm_crtc *crtc) { } static void vbox_crtc_commit(struct drm_crtc *crtc) { } static const struct drm_crtc_helper_funcs vbox_crtc_helper_funcs = { .dpms = vbox_crtc_dpms, .mode_fixup = vbox_crtc_mode_fixup, .mode_set = vbox_crtc_mode_set, .disable = vbox_crtc_disable, .prepare = vbox_crtc_prepare, .commit = vbox_crtc_commit, }; static void vbox_crtc_reset(struct drm_crtc *crtc) { } static void vbox_crtc_destroy(struct drm_crtc *crtc) { drm_crtc_cleanup(crtc); kfree(crtc); } static const struct drm_crtc_funcs vbox_crtc_funcs = { .cursor_move = vbox_cursor_move, .cursor_set2 = vbox_cursor_set2, .reset = vbox_crtc_reset, .set_config = drm_crtc_helper_set_config, /* .gamma_set = vbox_crtc_gamma_set, */ .page_flip = vbox_crtc_page_flip, .destroy = vbox_crtc_destroy, }; static const uint32_t vbox_primary_plane_formats[] = { DRM_FORMAT_XRGB8888, DRM_FORMAT_ARGB8888, }; static const struct drm_plane_funcs vbox_primary_plane_funcs = { .update_plane = drm_primary_helper_update, .disable_plane = drm_primary_helper_disable, .destroy = drm_primary_helper_destroy, }; static struct drm_plane *vbox_create_plane(struct vbox_private *vbox, unsigned int possible_crtcs, enum drm_plane_type type) { const struct drm_plane_helper_funcs *helper_funcs = NULL; const struct drm_plane_funcs *funcs; struct drm_plane *plane; const uint32_t *formats; int num_formats; int err; if (type == DRM_PLANE_TYPE_PRIMARY) { funcs = &vbox_primary_plane_funcs; formats = vbox_primary_plane_formats; num_formats = ARRAY_SIZE(vbox_primary_plane_formats); } else { return ERR_PTR(-EINVAL); } plane = kzalloc(sizeof(*plane), GFP_KERNEL); if (!plane) return ERR_PTR(-ENOMEM); err = drm_universal_plane_init(&vbox->ddev, plane, possible_crtcs, funcs, formats, num_formats, NULL, type, NULL); if (err) goto free_plane; drm_plane_helper_add(plane, helper_funcs); return plane; free_plane: kfree(plane); return ERR_PTR(-EINVAL); } static struct vbox_crtc *vbox_crtc_init(struct drm_device *dev, unsigned int i) { struct vbox_private *vbox = container_of(dev, struct vbox_private, ddev); struct vbox_crtc *vbox_crtc; struct drm_plane *primary; int ret; vbox_crtc = kzalloc(sizeof(*vbox_crtc), GFP_KERNEL); if (!vbox_crtc) return ERR_PTR(-ENOMEM); primary = vbox_create_plane(vbox, 1 << i, DRM_PLANE_TYPE_PRIMARY); if (IS_ERR(primary)) { ret = PTR_ERR(primary); goto free_mem; } vbox_crtc->crtc_id = i; ret = drm_crtc_init_with_planes(dev, &vbox_crtc->base, primary, NULL, &vbox_crtc_funcs, NULL); if (ret) goto clean_primary; drm_mode_crtc_set_gamma_size(&vbox_crtc->base, 256); drm_crtc_helper_add(&vbox_crtc->base, &vbox_crtc_helper_funcs); return vbox_crtc; clean_primary: drm_plane_cleanup(primary); kfree(primary); free_mem: kfree(vbox_crtc); return ERR_PTR(ret); } static void vbox_encoder_destroy(struct drm_encoder *encoder) { drm_encoder_cleanup(encoder); kfree(encoder); } static struct drm_encoder *vbox_best_single_encoder(struct drm_connector *connector) { int enc_id = connector->encoder_ids[0]; /* pick the encoder ids */ if (enc_id) return drm_encoder_find(connector->dev, NULL, enc_id); return NULL; } static const struct drm_encoder_funcs vbox_enc_funcs = { .destroy = vbox_encoder_destroy, }; static void vbox_encoder_dpms(struct drm_encoder *encoder, int mode) { } static bool vbox_mode_fixup(struct drm_encoder *encoder, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { return true; } static void vbox_encoder_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { } static void vbox_encoder_prepare(struct drm_encoder *encoder) { } static void vbox_encoder_commit(struct drm_encoder *encoder) { } static const struct drm_encoder_helper_funcs vbox_enc_helper_funcs = { .dpms = vbox_encoder_dpms, .mode_fixup = vbox_mode_fixup, .prepare = vbox_encoder_prepare, .commit = vbox_encoder_commit, .mode_set = vbox_encoder_mode_set, }; static struct drm_encoder *vbox_encoder_init(struct drm_device *dev, unsigned int i) { struct vbox_encoder *vbox_encoder; vbox_encoder = kzalloc(sizeof(*vbox_encoder), GFP_KERNEL); if (!vbox_encoder) return NULL; drm_encoder_init(dev, &vbox_encoder->base, &vbox_enc_funcs, DRM_MODE_ENCODER_DAC, NULL); drm_encoder_helper_add(&vbox_encoder->base, &vbox_enc_helper_funcs); vbox_encoder->base.possible_crtcs = 1 << i; return &vbox_encoder->base; } /** * Generate EDID data with a mode-unique serial number for the virtual * monitor to try to persuade Unity that different modes correspond to * different monitors and it should not try to force the same resolution on * them. */ static void vbox_set_edid(struct drm_connector *connector, int width, int height) { enum { EDID_SIZE = 128 }; unsigned char edid[EDID_SIZE] = { 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, /* header */ 0x58, 0x58, /* manufacturer (VBX) */ 0x00, 0x00, /* product code */ 0x00, 0x00, 0x00, 0x00, /* serial number goes here */ 0x01, /* week of manufacture */ 0x00, /* year of manufacture */ 0x01, 0x03, /* EDID version */ 0x80, /* capabilities - digital */ 0x00, /* horiz. res in cm, zero for projectors */ 0x00, /* vert. res in cm */ 0x78, /* display gamma (120 == 2.2). */ 0xEE, /* features (standby, suspend, off, RGB, std */ /* colour space, preferred timing mode) */ 0xEE, 0x91, 0xA3, 0x54, 0x4C, 0x99, 0x26, 0x0F, 0x50, 0x54, /* chromaticity for standard colour space. */ 0x00, 0x00, 0x00, /* no default timings */ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, /* no standard timings */ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x00, 0x02, 0x02, 0x02, 0x02, /* descriptor block 1 goes below */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* descriptor block 2, monitor ranges */ 0x00, 0x00, 0x00, 0xFD, 0x00, 0x00, 0xC8, 0x00, 0xC8, 0x64, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, /* 0-200Hz vertical, 0-200KHz horizontal, 1000MHz pixel clock */ 0x20, /* descriptor block 3, monitor name */ 0x00, 0x00, 0x00, 0xFC, 0x00, 'V', 'B', 'O', 'X', ' ', 'm', 'o', 'n', 'i', 't', 'o', 'r', '\n', /* descriptor block 4: dummy data */ 0x00, 0x00, 0x00, 0x10, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, /* number of extensions */ 0x00 /* checksum goes here */ }; int clock = (width + 6) * (height + 6) * 60 / 10000; unsigned int i, sum = 0; edid[12] = width & 0xff; edid[13] = width >> 8; edid[14] = height & 0xff; edid[15] = height >> 8; edid[54] = clock & 0xff; edid[55] = clock >> 8; edid[56] = width & 0xff; edid[58] = (width >> 4) & 0xf0; edid[59] = height & 0xff; edid[61] = (height >> 4) & 0xf0; for (i = 0; i < EDID_SIZE - 1; ++i) sum += edid[i]; edid[EDID_SIZE - 1] = (0x100 - (sum & 0xFF)) & 0xFF; drm_connector_update_edid_property(connector, (struct edid *)edid); } static int vbox_get_modes(struct drm_connector *connector) { struct vbox_connector *vbox_connector = NULL; struct drm_display_mode *mode = NULL; struct vbox_private *vbox = NULL; unsigned int num_modes = 0; int preferred_width, preferred_height; vbox_connector = to_vbox_connector(connector); vbox = connector->dev->dev_private; /* * Heuristic: we do not want to tell the host that we support dynamic * resizing unless we feel confident that the user space client using * the video driver can handle hot-plug events. So the first time modes * are queried after a "master" switch we tell the host that we do not, * and immediately after we send the client a hot-plug notification as * a test to see if they will respond and query again. * That is also the reason why capabilities are reported to the host at * this place in the code rather than elsewhere. * We need to report the flags location before reporting the IRQ * capability. */ hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) + HOST_FLAGS_OFFSET); if (vbox_connector->vbox_crtc->crtc_id == 0) vbox_report_caps(vbox); if (!vbox->initial_mode_queried) { if (vbox_connector->vbox_crtc->crtc_id == 0) { vbox->initial_mode_queried = true; vbox_report_hotplug(vbox); } return drm_add_modes_noedid(connector, 800, 600); } num_modes = drm_add_modes_noedid(connector, 2560, 1600); preferred_width = vbox_connector->mode_hint.width ? vbox_connector->mode_hint.width : 1024; preferred_height = vbox_connector->mode_hint.height ? vbox_connector->mode_hint.height : 768; mode = drm_cvt_mode(connector->dev, preferred_width, preferred_height, 60, false, false, false); if (mode) { mode->type |= DRM_MODE_TYPE_PREFERRED; drm_mode_probed_add(connector, mode); ++num_modes; } vbox_set_edid(connector, preferred_width, preferred_height); if (vbox_connector->vbox_crtc->x_hint != -1) drm_object_property_set_value(&connector->base, vbox->ddev.mode_config.suggested_x_property, vbox_connector->vbox_crtc->x_hint); else drm_object_property_set_value(&connector->base, vbox->ddev.mode_config.suggested_x_property, 0); if (vbox_connector->vbox_crtc->y_hint != -1) drm_object_property_set_value(&connector->base, vbox->ddev.mode_config.suggested_y_property, vbox_connector->vbox_crtc->y_hint); else drm_object_property_set_value(&connector->base, vbox->ddev.mode_config.suggested_y_property, 0); return num_modes; } static enum drm_mode_status vbox_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { return MODE_OK; } static void vbox_connector_destroy(struct drm_connector *connector) { drm_connector_unregister(connector); drm_connector_cleanup(connector); kfree(connector); } static enum drm_connector_status vbox_connector_detect(struct drm_connector *connector, bool force) { struct vbox_connector *vbox_connector; vbox_connector = to_vbox_connector(connector); return vbox_connector->mode_hint.disconnected ? connector_status_disconnected : connector_status_connected; } static int vbox_fill_modes(struct drm_connector *connector, u32 max_x, u32 max_y) { struct vbox_connector *vbox_connector; struct drm_device *dev; struct drm_display_mode *mode, *iterator; vbox_connector = to_vbox_connector(connector); dev = vbox_connector->base.dev; list_for_each_entry_safe(mode, iterator, &connector->modes, head) { list_del(&mode->head); drm_mode_destroy(dev, mode); } return drm_helper_probe_single_connector_modes(connector, max_x, max_y); } static const struct drm_connector_helper_funcs vbox_connector_helper_funcs = { .mode_valid = vbox_mode_valid, .get_modes = vbox_get_modes, .best_encoder = vbox_best_single_encoder, }; static const struct drm_connector_funcs vbox_connector_funcs = { .dpms = drm_helper_connector_dpms, .detect = vbox_connector_detect, .fill_modes = vbox_fill_modes, .destroy = vbox_connector_destroy, }; static int vbox_connector_init(struct drm_device *dev, struct vbox_crtc *vbox_crtc, struct drm_encoder *encoder) { struct vbox_connector *vbox_connector; struct drm_connector *connector; vbox_connector = kzalloc(sizeof(*vbox_connector), GFP_KERNEL); if (!vbox_connector) return -ENOMEM; connector = &vbox_connector->base; vbox_connector->vbox_crtc = vbox_crtc; drm_connector_init(dev, connector, &vbox_connector_funcs, DRM_MODE_CONNECTOR_VGA); drm_connector_helper_add(connector, &vbox_connector_helper_funcs); connector->interlace_allowed = 0; connector->doublescan_allowed = 0; drm_mode_create_suggested_offset_properties(dev); 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); drm_connector_attach_encoder(connector, encoder); return 0; } static struct drm_framebuffer *vbox_user_framebuffer_create( struct drm_device *dev, struct drm_file *filp, const struct drm_mode_fb_cmd2 *mode_cmd) { struct vbox_private *vbox = container_of(dev, struct vbox_private, ddev); struct drm_gem_object *obj; struct vbox_framebuffer *vbox_fb; int ret = -ENOMEM; obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]); if (!obj) return ERR_PTR(-ENOENT); vbox_fb = kzalloc(sizeof(*vbox_fb), GFP_KERNEL); if (!vbox_fb) goto err_unref_obj; ret = vbox_framebuffer_init(vbox, vbox_fb, mode_cmd, obj); if (ret) goto err_free_vbox_fb; return &vbox_fb->base; err_free_vbox_fb: kfree(vbox_fb); err_unref_obj: drm_gem_object_put_unlocked(obj); return ERR_PTR(ret); } static const struct drm_mode_config_funcs vbox_mode_funcs = { .fb_create = vbox_user_framebuffer_create, }; int vbox_mode_init(struct vbox_private *vbox) { struct drm_device *dev = &vbox->ddev; struct drm_encoder *encoder; struct vbox_crtc *vbox_crtc; unsigned int i; int ret; drm_mode_config_init(dev); dev->mode_config.funcs = (void *)&vbox_mode_funcs; dev->mode_config.min_width = 64; dev->mode_config.min_height = 64; dev->mode_config.preferred_depth = 24; dev->mode_config.max_width = VBE_DISPI_MAX_XRES; dev->mode_config.max_height = VBE_DISPI_MAX_YRES; /* vbox_cursor_init(dev); */ for (i = 0; i < vbox->num_crtcs; ++i) { vbox_crtc = vbox_crtc_init(dev, i); if (IS_ERR(vbox_crtc)) { ret = PTR_ERR(vbox_crtc); goto err_drm_mode_cleanup; } encoder = vbox_encoder_init(dev, i); if (!encoder) { ret = -ENOMEM; goto err_drm_mode_cleanup; } ret = vbox_connector_init(dev, vbox_crtc, encoder); if (ret) goto err_drm_mode_cleanup; } return 0; err_drm_mode_cleanup: drm_mode_config_cleanup(dev); return ret; } void vbox_mode_fini(struct vbox_private *vbox) { drm_mode_config_cleanup(&vbox->ddev); /* vbox_cursor_fini(dev); */ } /** * Copy the ARGB image and generate the mask, which is needed in case the host * does not support ARGB cursors. The mask is a 1BPP bitmap with the bit set * if the corresponding alpha value in the ARGB image is greater than 0xF0. */ static void copy_cursor_image(u8 *src, u8 *dst, u32 width, u32 height, size_t mask_size) { size_t line_size = (width + 7) / 8; u32 i, j; memcpy(dst + mask_size, src, width * height * 4); for (i = 0; i < height; ++i) for (j = 0; j < width; ++j) if (((u32 *)src)[i * width + j] > 0xf0000000) dst[i * line_size + j / 8] |= (0x80 >> (j % 8)); } static int vbox_cursor_set2(struct drm_crtc *crtc, struct drm_file *file_priv, u32 handle, u32 width, u32 height, s32 hot_x, s32 hot_y) { struct vbox_private *vbox = crtc->dev->dev_private; struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc); struct ttm_bo_kmap_obj uobj_map; size_t data_size, mask_size; struct drm_gem_object *obj; u32 flags, caps = 0; struct vbox_bo *bo; bool src_isiomem; u8 *dst = NULL; u8 *src; int ret; /* * Re-set this regularly as in 5.0.20 and earlier the information was * lost on save and restore. */ hgsmi_update_input_mapping(vbox->guest_pool, 0, 0, vbox->input_mapping_width, vbox->input_mapping_height); if (!handle) { bool cursor_enabled = false; struct drm_crtc *crtci; /* Hide cursor. */ vbox_crtc->cursor_enabled = false; list_for_each_entry(crtci, &vbox->ddev.mode_config.crtc_list, head) { if (to_vbox_crtc(crtci)->cursor_enabled) cursor_enabled = true; } if (!cursor_enabled) hgsmi_update_pointer_shape(vbox->guest_pool, 0, 0, 0, 0, 0, NULL, 0); return 0; } vbox_crtc->cursor_enabled = true; if (width > VBOX_MAX_CURSOR_WIDTH || height > VBOX_MAX_CURSOR_HEIGHT || width == 0 || height == 0) return -EINVAL; ret = hgsmi_query_conf(vbox->guest_pool, VBOX_VBVA_CONF32_CURSOR_CAPABILITIES, &caps); if (ret) return ret; if (!(caps & VBOX_VBVA_CURSOR_CAPABILITY_HARDWARE)) { /* * -EINVAL means cursor_set2() not supported, -EAGAIN means * retry at once. */ return -EBUSY; } obj = drm_gem_object_lookup(file_priv, handle); if (!obj) { DRM_ERROR("Cannot find cursor object %x for crtc\n", handle); return -ENOENT; } bo = gem_to_vbox_bo(obj); ret = vbox_bo_reserve(bo, false); if (ret) goto out_unref_obj; /* * The mask must be calculated based on the alpha * channel, one bit per ARGB word, and must be 32-bit * padded. */ mask_size = ((width + 7) / 8 * height + 3) & ~3; data_size = width * height * 4 + mask_size; vbox->cursor_hot_x = min_t(u32, max(hot_x, 0), width); vbox->cursor_hot_y = min_t(u32, max(hot_y, 0), height); vbox->cursor_width = width; vbox->cursor_height = height; vbox->cursor_data_size = data_size; dst = vbox->cursor_data; ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &uobj_map); if (ret) { vbox->cursor_data_size = 0; goto out_unreserve_bo; } src = ttm_kmap_obj_virtual(&uobj_map, &src_isiomem); if (src_isiomem) { DRM_ERROR("src cursor bo not in main memory\n"); ret = -EIO; goto out_unmap_bo; } copy_cursor_image(src, dst, width, height, mask_size); flags = VBOX_MOUSE_POINTER_VISIBLE | VBOX_MOUSE_POINTER_SHAPE | VBOX_MOUSE_POINTER_ALPHA; ret = hgsmi_update_pointer_shape(vbox->guest_pool, flags, vbox->cursor_hot_x, vbox->cursor_hot_y, width, height, dst, data_size); out_unmap_bo: ttm_bo_kunmap(&uobj_map); out_unreserve_bo: vbox_bo_unreserve(bo); out_unref_obj: drm_gem_object_put_unlocked(obj); return ret; } static int vbox_cursor_move(struct drm_crtc *crtc, int x, int y) { struct vbox_private *vbox = crtc->dev->dev_private; u32 flags = VBOX_MOUSE_POINTER_VISIBLE | VBOX_MOUSE_POINTER_SHAPE | VBOX_MOUSE_POINTER_ALPHA; s32 crtc_x = vbox->single_framebuffer ? crtc->x : to_vbox_crtc(crtc)->x_hint; s32 crtc_y = vbox->single_framebuffer ? crtc->y : to_vbox_crtc(crtc)->y_hint; u32 host_x, host_y; u32 hot_x = 0; u32 hot_y = 0; int ret; /* * We compare these to unsigned later and don't * need to handle negative. */ if (x + crtc_x < 0 || y + crtc_y < 0 || vbox->cursor_data_size == 0) return 0; ret = hgsmi_cursor_position(vbox->guest_pool, true, x + crtc_x, y + crtc_y, &host_x, &host_y); /* * The only reason we have vbox_cursor_move() is that some older clients * might use DRM_IOCTL_MODE_CURSOR instead of DRM_IOCTL_MODE_CURSOR2 and * use DRM_MODE_CURSOR_MOVE to set the hot-spot. * * However VirtualBox 5.0.20 and earlier has a bug causing it to return * 0,0 as host cursor location after a save and restore. * * To work around this we ignore a 0, 0 return, since missing the odd * time when it legitimately happens is not going to hurt much. */ if (ret || (host_x == 0 && host_y == 0)) return ret; if (x + crtc_x < host_x) hot_x = min(host_x - x - crtc_x, vbox->cursor_width); if (y + crtc_y < host_y) hot_y = min(host_y - y - crtc_y, vbox->cursor_height); if (hot_x == vbox->cursor_hot_x && hot_y == vbox->cursor_hot_y) return 0; vbox->cursor_hot_x = hot_x; vbox->cursor_hot_y = hot_y; return hgsmi_update_pointer_shape(vbox->guest_pool, flags, hot_x, hot_y, vbox->cursor_width, vbox->cursor_height, vbox->cursor_data, vbox->cursor_data_size); }