/************************************************************************** * * Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA * All Rights Reserved. * * 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 #include /* Might need a hrtimer here? */ #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1) void vmw_du_cleanup(struct vmw_display_unit *du) { drm_plane_cleanup(&du->primary); drm_plane_cleanup(&du->cursor); drm_connector_unregister(&du->connector); drm_crtc_cleanup(&du->crtc); drm_encoder_cleanup(&du->encoder); drm_connector_cleanup(&du->connector); } /* * Display Unit Cursor functions */ static int vmw_cursor_update_image(struct vmw_private *dev_priv, u32 *image, u32 width, u32 height, u32 hotspotX, u32 hotspotY) { struct { u32 cmd; SVGAFifoCmdDefineAlphaCursor cursor; } *cmd; u32 image_size = width * height * 4; u32 cmd_size = sizeof(*cmd) + image_size; if (!image) return -EINVAL; cmd = vmw_fifo_reserve(dev_priv, cmd_size); if (unlikely(cmd == NULL)) { DRM_ERROR("Fifo reserve failed.\n"); return -ENOMEM; } memset(cmd, 0, sizeof(*cmd)); memcpy(&cmd[1], image, image_size); cmd->cmd = SVGA_CMD_DEFINE_ALPHA_CURSOR; cmd->cursor.id = 0; cmd->cursor.width = width; cmd->cursor.height = height; cmd->cursor.hotspotX = hotspotX; cmd->cursor.hotspotY = hotspotY; vmw_fifo_commit_flush(dev_priv, cmd_size); return 0; } static int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv, struct vmw_dma_buffer *dmabuf, u32 width, u32 height, u32 hotspotX, u32 hotspotY) { struct ttm_bo_kmap_obj map; unsigned long kmap_offset; unsigned long kmap_num; void *virtual; bool dummy; int ret; kmap_offset = 0; kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT; ret = ttm_bo_reserve(&dmabuf->base, true, false, NULL); if (unlikely(ret != 0)) { DRM_ERROR("reserve failed\n"); return -EINVAL; } ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map); if (unlikely(ret != 0)) goto err_unreserve; virtual = ttm_kmap_obj_virtual(&map, &dummy); ret = vmw_cursor_update_image(dev_priv, virtual, width, height, hotspotX, hotspotY); ttm_bo_kunmap(&map); err_unreserve: ttm_bo_unreserve(&dmabuf->base); return ret; } static void vmw_cursor_update_position(struct vmw_private *dev_priv, bool show, int x, int y) { u32 *fifo_mem = dev_priv->mmio_virt; uint32_t count; spin_lock(&dev_priv->cursor_lock); vmw_mmio_write(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON); vmw_mmio_write(x, fifo_mem + SVGA_FIFO_CURSOR_X); vmw_mmio_write(y, fifo_mem + SVGA_FIFO_CURSOR_Y); count = vmw_mmio_read(fifo_mem + SVGA_FIFO_CURSOR_COUNT); vmw_mmio_write(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT); spin_unlock(&dev_priv->cursor_lock); } void vmw_kms_cursor_snoop(struct vmw_surface *srf, struct ttm_object_file *tfile, struct ttm_buffer_object *bo, SVGA3dCmdHeader *header) { struct ttm_bo_kmap_obj map; unsigned long kmap_offset; unsigned long kmap_num; SVGA3dCopyBox *box; unsigned box_count; void *virtual; bool dummy; struct vmw_dma_cmd { SVGA3dCmdHeader header; SVGA3dCmdSurfaceDMA dma; } *cmd; int i, ret; cmd = container_of(header, struct vmw_dma_cmd, header); /* No snooper installed */ if (!srf->snooper.image) return; if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) { DRM_ERROR("face and mipmap for cursors should never != 0\n"); return; } if (cmd->header.size < 64) { DRM_ERROR("at least one full copy box must be given\n"); return; } box = (SVGA3dCopyBox *)&cmd[1]; box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) / sizeof(SVGA3dCopyBox); if (cmd->dma.guest.ptr.offset % PAGE_SIZE || box->x != 0 || box->y != 0 || box->z != 0 || box->srcx != 0 || box->srcy != 0 || box->srcz != 0 || box->d != 1 || box_count != 1) { /* TODO handle none page aligned offsets */ /* TODO handle more dst & src != 0 */ /* TODO handle more then one copy */ DRM_ERROR("Cant snoop dma request for cursor!\n"); DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n", box->srcx, box->srcy, box->srcz, box->x, box->y, box->z, box->w, box->h, box->d, box_count, cmd->dma.guest.ptr.offset); return; } kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT; kmap_num = (64*64*4) >> PAGE_SHIFT; ret = ttm_bo_reserve(bo, true, false, NULL); if (unlikely(ret != 0)) { DRM_ERROR("reserve failed\n"); return; } ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map); if (unlikely(ret != 0)) goto err_unreserve; virtual = ttm_kmap_obj_virtual(&map, &dummy); if (box->w == 64 && cmd->dma.guest.pitch == 64*4) { memcpy(srf->snooper.image, virtual, 64*64*4); } else { /* Image is unsigned pointer. */ for (i = 0; i < box->h; i++) memcpy(srf->snooper.image + i * 64, virtual + i * cmd->dma.guest.pitch, box->w * 4); } srf->snooper.age++; ttm_bo_kunmap(&map); err_unreserve: ttm_bo_unreserve(bo); } /** * vmw_kms_legacy_hotspot_clear - Clear legacy hotspots * * @dev_priv: Pointer to the device private struct. * * Clears all legacy hotspots. */ void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv) { struct drm_device *dev = dev_priv->dev; struct vmw_display_unit *du; struct drm_crtc *crtc; drm_modeset_lock_all(dev); drm_for_each_crtc(crtc, dev) { du = vmw_crtc_to_du(crtc); du->hotspot_x = 0; du->hotspot_y = 0; } drm_modeset_unlock_all(dev); } void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv) { struct drm_device *dev = dev_priv->dev; struct vmw_display_unit *du; struct drm_crtc *crtc; mutex_lock(&dev->mode_config.mutex); list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { du = vmw_crtc_to_du(crtc); if (!du->cursor_surface || du->cursor_age == du->cursor_surface->snooper.age) continue; du->cursor_age = du->cursor_surface->snooper.age; vmw_cursor_update_image(dev_priv, du->cursor_surface->snooper.image, 64, 64, du->hotspot_x + du->core_hotspot_x, du->hotspot_y + du->core_hotspot_y); } mutex_unlock(&dev->mode_config.mutex); } void vmw_du_cursor_plane_destroy(struct drm_plane *plane) { vmw_cursor_update_position(plane->dev->dev_private, false, 0, 0); drm_plane_cleanup(plane); } void vmw_du_primary_plane_destroy(struct drm_plane *plane) { drm_plane_cleanup(plane); /* Planes are static in our case so we don't free it */ } /** * vmw_du_vps_unpin_surf - unpins resource associated with a framebuffer surface * * @vps: plane state associated with the display surface * @unreference: true if we also want to unreference the display. */ void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps, bool unreference) { if (vps->surf) { if (vps->pinned) { vmw_resource_unpin(&vps->surf->res); vps->pinned--; } if (unreference) { if (vps->pinned) DRM_ERROR("Surface still pinned\n"); vmw_surface_unreference(&vps->surf); } } } /** * vmw_du_plane_cleanup_fb - Unpins the cursor * * @plane: display plane * @old_state: Contains the FB to clean up * * Unpins the framebuffer surface * * Returns 0 on success */ void vmw_du_plane_cleanup_fb(struct drm_plane *plane, struct drm_plane_state *old_state) { struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state); vmw_du_plane_unpin_surf(vps, false); } /** * vmw_du_cursor_plane_prepare_fb - Readies the cursor by referencing it * * @plane: display plane * @new_state: info on the new plane state, including the FB * * Returns 0 on success */ int vmw_du_cursor_plane_prepare_fb(struct drm_plane *plane, struct drm_plane_state *new_state) { struct drm_framebuffer *fb = new_state->fb; struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state); if (vps->surf) vmw_surface_unreference(&vps->surf); if (vps->dmabuf) vmw_dmabuf_unreference(&vps->dmabuf); if (fb) { if (vmw_framebuffer_to_vfb(fb)->dmabuf) { vps->dmabuf = vmw_framebuffer_to_vfbd(fb)->buffer; vmw_dmabuf_reference(vps->dmabuf); } else { vps->surf = vmw_framebuffer_to_vfbs(fb)->surface; vmw_surface_reference(vps->surf); } } return 0; } void vmw_du_cursor_plane_atomic_update(struct drm_plane *plane, struct drm_plane_state *old_state) { struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc; struct vmw_private *dev_priv = vmw_priv(crtc->dev); struct vmw_display_unit *du = vmw_crtc_to_du(crtc); struct vmw_plane_state *vps = vmw_plane_state_to_vps(plane->state); s32 hotspot_x, hotspot_y; int ret = 0; hotspot_x = du->hotspot_x; hotspot_y = du->hotspot_y; if (plane->fb) { hotspot_x += plane->fb->hot_x; hotspot_y += plane->fb->hot_y; } du->cursor_surface = vps->surf; du->cursor_dmabuf = vps->dmabuf; /* setup new image */ if (vps->surf) { du->cursor_age = du->cursor_surface->snooper.age; ret = vmw_cursor_update_image(dev_priv, vps->surf->snooper.image, 64, 64, hotspot_x, hotspot_y); } else if (vps->dmabuf) { ret = vmw_cursor_update_dmabuf(dev_priv, vps->dmabuf, plane->state->crtc_w, plane->state->crtc_h, hotspot_x, hotspot_y); } else { vmw_cursor_update_position(dev_priv, false, 0, 0); return; } if (!ret) { du->cursor_x = plane->state->crtc_x + du->set_gui_x; du->cursor_y = plane->state->crtc_y + du->set_gui_y; vmw_cursor_update_position(dev_priv, true, du->cursor_x + hotspot_x, du->cursor_y + hotspot_y); du->core_hotspot_x = hotspot_x - du->hotspot_x; du->core_hotspot_y = hotspot_y - du->hotspot_y; } else { DRM_ERROR("Failed to update cursor image\n"); } } /** * vmw_du_primary_plane_atomic_check - check if the new state is okay * * @plane: display plane * @state: info on the new plane state, including the FB * * Check if the new state is settable given the current state. Other * than what the atomic helper checks, we care about crtc fitting * the FB and maintaining one active framebuffer. * * Returns 0 on success */ int vmw_du_primary_plane_atomic_check(struct drm_plane *plane, struct drm_plane_state *state) { struct drm_crtc_state *crtc_state = NULL; struct drm_framebuffer *new_fb = state->fb; int ret; if (state->crtc) crtc_state = drm_atomic_get_new_crtc_state(state->state, state->crtc); ret = drm_atomic_helper_check_plane_state(state, crtc_state, DRM_PLANE_HELPER_NO_SCALING, DRM_PLANE_HELPER_NO_SCALING, false, true); if (!ret && new_fb) { struct drm_crtc *crtc = state->crtc; struct vmw_connector_state *vcs; struct vmw_display_unit *du = vmw_crtc_to_du(crtc); struct vmw_private *dev_priv = vmw_priv(crtc->dev); struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb); vcs = vmw_connector_state_to_vcs(du->connector.state); /* Only one active implicit framebuffer at a time. */ mutex_lock(&dev_priv->global_kms_state_mutex); if (vcs->is_implicit && dev_priv->implicit_fb && !(dev_priv->num_implicit == 1 && du->active_implicit) && dev_priv->implicit_fb != vfb) { DRM_ERROR("Multiple implicit framebuffers " "not supported.\n"); ret = -EINVAL; } mutex_unlock(&dev_priv->global_kms_state_mutex); } return ret; } /** * vmw_du_cursor_plane_atomic_check - check if the new state is okay * * @plane: cursor plane * @state: info on the new plane state * * This is a chance to fail if the new cursor state does not fit * our requirements. * * Returns 0 on success */ int vmw_du_cursor_plane_atomic_check(struct drm_plane *plane, struct drm_plane_state *new_state) { int ret = 0; struct vmw_surface *surface = NULL; struct drm_framebuffer *fb = new_state->fb; /* Turning off */ if (!fb) return ret; /* A lot of the code assumes this */ if (new_state->crtc_w != 64 || new_state->crtc_h != 64) { DRM_ERROR("Invalid cursor dimensions (%d, %d)\n", new_state->crtc_w, new_state->crtc_h); ret = -EINVAL; } if (!vmw_framebuffer_to_vfb(fb)->dmabuf) surface = vmw_framebuffer_to_vfbs(fb)->surface; if (surface && !surface->snooper.image) { DRM_ERROR("surface not suitable for cursor\n"); ret = -EINVAL; } return ret; } int vmw_du_crtc_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *new_state) { struct vmw_display_unit *du = vmw_crtc_to_du(new_state->crtc); int connector_mask = 1 << drm_connector_index(&du->connector); bool has_primary = new_state->plane_mask & BIT(drm_plane_index(crtc->primary)); /* We always want to have an active plane with an active CRTC */ if (has_primary != new_state->enable) return -EINVAL; if (new_state->connector_mask != connector_mask && new_state->connector_mask != 0) { DRM_ERROR("Invalid connectors configuration\n"); return -EINVAL; } /* * Our virtual device does not have a dot clock, so use the logical * clock value as the dot clock. */ if (new_state->mode.crtc_clock == 0) new_state->adjusted_mode.crtc_clock = new_state->mode.clock; return 0; } void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc, struct drm_crtc_state *old_crtc_state) { } void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc, struct drm_crtc_state *old_crtc_state) { struct drm_pending_vblank_event *event = crtc->state->event; if (event) { crtc->state->event = NULL; spin_lock_irq(&crtc->dev->event_lock); if (drm_crtc_vblank_get(crtc) == 0) drm_crtc_arm_vblank_event(crtc, event); else drm_crtc_send_vblank_event(crtc, event); spin_unlock_irq(&crtc->dev->event_lock); } } /** * vmw_du_crtc_duplicate_state - duplicate crtc state * @crtc: DRM crtc * * Allocates and returns a copy of the crtc state (both common and * vmw-specific) for the specified crtc. * * Returns: The newly allocated crtc state, or NULL on failure. */ struct drm_crtc_state * vmw_du_crtc_duplicate_state(struct drm_crtc *crtc) { struct drm_crtc_state *state; struct vmw_crtc_state *vcs; if (WARN_ON(!crtc->state)) return NULL; vcs = kmemdup(crtc->state, sizeof(*vcs), GFP_KERNEL); if (!vcs) return NULL; state = &vcs->base; __drm_atomic_helper_crtc_duplicate_state(crtc, state); return state; } /** * vmw_du_crtc_reset - creates a blank vmw crtc state * @crtc: DRM crtc * * Resets the atomic state for @crtc by freeing the state pointer (which * might be NULL, e.g. at driver load time) and allocating a new empty state * object. */ void vmw_du_crtc_reset(struct drm_crtc *crtc) { struct vmw_crtc_state *vcs; if (crtc->state) { __drm_atomic_helper_crtc_destroy_state(crtc->state); kfree(vmw_crtc_state_to_vcs(crtc->state)); } vcs = kzalloc(sizeof(*vcs), GFP_KERNEL); if (!vcs) { DRM_ERROR("Cannot allocate vmw_crtc_state\n"); return; } crtc->state = &vcs->base; crtc->state->crtc = crtc; } /** * vmw_du_crtc_destroy_state - destroy crtc state * @crtc: DRM crtc * @state: state object to destroy * * Destroys the crtc state (both common and vmw-specific) for the * specified plane. */ void vmw_du_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state) { drm_atomic_helper_crtc_destroy_state(crtc, state); } /** * vmw_du_plane_duplicate_state - duplicate plane state * @plane: drm plane * * Allocates and returns a copy of the plane state (both common and * vmw-specific) for the specified plane. * * Returns: The newly allocated plane state, or NULL on failure. */ struct drm_plane_state * vmw_du_plane_duplicate_state(struct drm_plane *plane) { struct drm_plane_state *state; struct vmw_plane_state *vps; vps = kmemdup(plane->state, sizeof(*vps), GFP_KERNEL); if (!vps) return NULL; vps->pinned = 0; /* Mapping is managed by prepare_fb/cleanup_fb */ memset(&vps->host_map, 0, sizeof(vps->host_map)); vps->cpp = 0; /* Each ref counted resource needs to be acquired again */ if (vps->surf) (void) vmw_surface_reference(vps->surf); if (vps->dmabuf) (void) vmw_dmabuf_reference(vps->dmabuf); state = &vps->base; __drm_atomic_helper_plane_duplicate_state(plane, state); return state; } /** * vmw_du_plane_reset - creates a blank vmw plane state * @plane: drm plane * * Resets the atomic state for @plane by freeing the state pointer (which might * be NULL, e.g. at driver load time) and allocating a new empty state object. */ void vmw_du_plane_reset(struct drm_plane *plane) { struct vmw_plane_state *vps; if (plane->state) vmw_du_plane_destroy_state(plane, plane->state); vps = kzalloc(sizeof(*vps), GFP_KERNEL); if (!vps) { DRM_ERROR("Cannot allocate vmw_plane_state\n"); return; } plane->state = &vps->base; plane->state->plane = plane; plane->state->rotation = DRM_MODE_ROTATE_0; } /** * vmw_du_plane_destroy_state - destroy plane state * @plane: DRM plane * @state: state object to destroy * * Destroys the plane state (both common and vmw-specific) for the * specified plane. */ void vmw_du_plane_destroy_state(struct drm_plane *plane, struct drm_plane_state *state) { struct vmw_plane_state *vps = vmw_plane_state_to_vps(state); /* Should have been freed by cleanup_fb */ if (vps->host_map.virtual) { DRM_ERROR("Host mapping not freed\n"); ttm_bo_kunmap(&vps->host_map); } if (vps->surf) vmw_surface_unreference(&vps->surf); if (vps->dmabuf) vmw_dmabuf_unreference(&vps->dmabuf); drm_atomic_helper_plane_destroy_state(plane, state); } /** * vmw_du_connector_duplicate_state - duplicate connector state * @connector: DRM connector * * Allocates and returns a copy of the connector state (both common and * vmw-specific) for the specified connector. * * Returns: The newly allocated connector state, or NULL on failure. */ struct drm_connector_state * vmw_du_connector_duplicate_state(struct drm_connector *connector) { struct drm_connector_state *state; struct vmw_connector_state *vcs; if (WARN_ON(!connector->state)) return NULL; vcs = kmemdup(connector->state, sizeof(*vcs), GFP_KERNEL); if (!vcs) return NULL; state = &vcs->base; __drm_atomic_helper_connector_duplicate_state(connector, state); return state; } /** * vmw_du_connector_reset - creates a blank vmw connector state * @connector: DRM connector * * Resets the atomic state for @connector by freeing the state pointer (which * might be NULL, e.g. at driver load time) and allocating a new empty state * object. */ void vmw_du_connector_reset(struct drm_connector *connector) { struct vmw_connector_state *vcs; if (connector->state) { __drm_atomic_helper_connector_destroy_state(connector->state); kfree(vmw_connector_state_to_vcs(connector->state)); } vcs = kzalloc(sizeof(*vcs), GFP_KERNEL); if (!vcs) { DRM_ERROR("Cannot allocate vmw_connector_state\n"); return; } __drm_atomic_helper_connector_reset(connector, &vcs->base); } /** * vmw_du_connector_destroy_state - destroy connector state * @connector: DRM connector * @state: state object to destroy * * Destroys the connector state (both common and vmw-specific) for the * specified plane. */ void vmw_du_connector_destroy_state(struct drm_connector *connector, struct drm_connector_state *state) { drm_atomic_helper_connector_destroy_state(connector, state); } /* * Generic framebuffer code */ /* * Surface framebuffer code */ static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer) { struct vmw_framebuffer_surface *vfbs = vmw_framebuffer_to_vfbs(framebuffer); drm_framebuffer_cleanup(framebuffer); vmw_surface_unreference(&vfbs->surface); if (vfbs->base.user_obj) ttm_base_object_unref(&vfbs->base.user_obj); kfree(vfbs); } static int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer, struct drm_file *file_priv, unsigned flags, unsigned color, struct drm_clip_rect *clips, unsigned num_clips) { struct vmw_private *dev_priv = vmw_priv(framebuffer->dev); struct vmw_framebuffer_surface *vfbs = vmw_framebuffer_to_vfbs(framebuffer); struct drm_clip_rect norect; int ret, inc = 1; /* Legacy Display Unit does not support 3D */ if (dev_priv->active_display_unit == vmw_du_legacy) return -EINVAL; drm_modeset_lock_all(dev_priv->dev); ret = ttm_read_lock(&dev_priv->reservation_sem, true); if (unlikely(ret != 0)) { drm_modeset_unlock_all(dev_priv->dev); return ret; } if (!num_clips) { num_clips = 1; clips = &norect; norect.x1 = norect.y1 = 0; norect.x2 = framebuffer->width; norect.y2 = framebuffer->height; } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) { num_clips /= 2; inc = 2; /* skip source rects */ } if (dev_priv->active_display_unit == vmw_du_screen_object) ret = vmw_kms_sou_do_surface_dirty(dev_priv, &vfbs->base, clips, NULL, NULL, 0, 0, num_clips, inc, NULL); else ret = vmw_kms_stdu_surface_dirty(dev_priv, &vfbs->base, clips, NULL, NULL, 0, 0, num_clips, inc, NULL); vmw_fifo_flush(dev_priv, false); ttm_read_unlock(&dev_priv->reservation_sem); drm_modeset_unlock_all(dev_priv->dev); return 0; } /** * vmw_kms_readback - Perform a readback from the screen system to * a dma-buffer backed framebuffer. * * @dev_priv: Pointer to the device private structure. * @file_priv: Pointer to a struct drm_file identifying the caller. * Must be set to NULL if @user_fence_rep is NULL. * @vfb: Pointer to the dma-buffer backed framebuffer. * @user_fence_rep: User-space provided structure for fence information. * Must be set to non-NULL if @file_priv is non-NULL. * @vclips: Array of clip rects. * @num_clips: Number of clip rects in @vclips. * * Returns 0 on success, negative error code on failure. -ERESTARTSYS if * interrupted. */ int vmw_kms_readback(struct vmw_private *dev_priv, struct drm_file *file_priv, struct vmw_framebuffer *vfb, struct drm_vmw_fence_rep __user *user_fence_rep, struct drm_vmw_rect *vclips, uint32_t num_clips) { switch (dev_priv->active_display_unit) { case vmw_du_screen_object: return vmw_kms_sou_readback(dev_priv, file_priv, vfb, user_fence_rep, vclips, num_clips); case vmw_du_screen_target: return vmw_kms_stdu_dma(dev_priv, file_priv, vfb, user_fence_rep, NULL, vclips, num_clips, 1, false, true); default: WARN_ONCE(true, "Readback called with invalid display system.\n"); } return -ENOSYS; } static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = { .destroy = vmw_framebuffer_surface_destroy, .dirty = vmw_framebuffer_surface_dirty, }; static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv, struct vmw_surface *surface, struct vmw_framebuffer **out, const struct drm_mode_fb_cmd2 *mode_cmd, bool is_dmabuf_proxy) { struct drm_device *dev = dev_priv->dev; struct vmw_framebuffer_surface *vfbs; enum SVGA3dSurfaceFormat format; int ret; struct drm_format_name_buf format_name; /* 3D is only supported on HWv8 and newer hosts */ if (dev_priv->active_display_unit == vmw_du_legacy) return -ENOSYS; /* * Sanity checks. */ /* Surface must be marked as a scanout. */ if (unlikely(!surface->scanout)) return -EINVAL; if (unlikely(surface->mip_levels[0] != 1 || surface->num_sizes != 1 || surface->base_size.width < mode_cmd->width || surface->base_size.height < mode_cmd->height || surface->base_size.depth != 1)) { DRM_ERROR("Incompatible surface dimensions " "for requested mode.\n"); return -EINVAL; } switch (mode_cmd->pixel_format) { case DRM_FORMAT_ARGB8888: format = SVGA3D_A8R8G8B8; break; case DRM_FORMAT_XRGB8888: format = SVGA3D_X8R8G8B8; break; case DRM_FORMAT_RGB565: format = SVGA3D_R5G6B5; break; case DRM_FORMAT_XRGB1555: format = SVGA3D_A1R5G5B5; break; default: DRM_ERROR("Invalid pixel format: %s\n", drm_get_format_name(mode_cmd->pixel_format, &format_name)); return -EINVAL; } /* * For DX, surface format validation is done when surface->scanout * is set. */ if (!dev_priv->has_dx && format != surface->format) { DRM_ERROR("Invalid surface format for requested mode.\n"); return -EINVAL; } vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL); if (!vfbs) { ret = -ENOMEM; goto out_err1; } drm_helper_mode_fill_fb_struct(dev, &vfbs->base.base, mode_cmd); vfbs->surface = vmw_surface_reference(surface); vfbs->base.user_handle = mode_cmd->handles[0]; vfbs->is_dmabuf_proxy = is_dmabuf_proxy; *out = &vfbs->base; ret = drm_framebuffer_init(dev, &vfbs->base.base, &vmw_framebuffer_surface_funcs); if (ret) goto out_err2; return 0; out_err2: vmw_surface_unreference(&surface); kfree(vfbs); out_err1: return ret; } /* * Dmabuf framebuffer code */ static void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer) { struct vmw_framebuffer_dmabuf *vfbd = vmw_framebuffer_to_vfbd(framebuffer); drm_framebuffer_cleanup(framebuffer); vmw_dmabuf_unreference(&vfbd->buffer); if (vfbd->base.user_obj) ttm_base_object_unref(&vfbd->base.user_obj); kfree(vfbd); } static int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer, struct drm_file *file_priv, unsigned flags, unsigned color, struct drm_clip_rect *clips, unsigned num_clips) { struct vmw_private *dev_priv = vmw_priv(framebuffer->dev); struct vmw_framebuffer_dmabuf *vfbd = vmw_framebuffer_to_vfbd(framebuffer); struct drm_clip_rect norect; int ret, increment = 1; drm_modeset_lock_all(dev_priv->dev); ret = ttm_read_lock(&dev_priv->reservation_sem, true); if (unlikely(ret != 0)) { drm_modeset_unlock_all(dev_priv->dev); return ret; } if (!num_clips) { num_clips = 1; clips = &norect; norect.x1 = norect.y1 = 0; norect.x2 = framebuffer->width; norect.y2 = framebuffer->height; } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) { num_clips /= 2; increment = 2; } switch (dev_priv->active_display_unit) { case vmw_du_screen_target: ret = vmw_kms_stdu_dma(dev_priv, NULL, &vfbd->base, NULL, clips, NULL, num_clips, increment, true, true); break; case vmw_du_screen_object: ret = vmw_kms_sou_do_dmabuf_dirty(dev_priv, &vfbd->base, clips, NULL, num_clips, increment, true, NULL); break; case vmw_du_legacy: ret = vmw_kms_ldu_do_dmabuf_dirty(dev_priv, &vfbd->base, 0, 0, clips, num_clips, increment); break; default: ret = -EINVAL; WARN_ONCE(true, "Dirty called with invalid display system.\n"); break; } vmw_fifo_flush(dev_priv, false); ttm_read_unlock(&dev_priv->reservation_sem); drm_modeset_unlock_all(dev_priv->dev); return ret; } static const struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = { .destroy = vmw_framebuffer_dmabuf_destroy, .dirty = vmw_framebuffer_dmabuf_dirty, }; /** * Pin the dmabuffer to the start of vram. */ static int vmw_framebuffer_pin(struct vmw_framebuffer *vfb) { struct vmw_private *dev_priv = vmw_priv(vfb->base.dev); struct vmw_dma_buffer *buf; int ret; buf = vfb->dmabuf ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer : vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup; if (!buf) return 0; switch (dev_priv->active_display_unit) { case vmw_du_legacy: vmw_overlay_pause_all(dev_priv); ret = vmw_dmabuf_pin_in_start_of_vram(dev_priv, buf, false); vmw_overlay_resume_all(dev_priv); break; case vmw_du_screen_object: case vmw_du_screen_target: if (vfb->dmabuf) return vmw_dmabuf_pin_in_vram_or_gmr(dev_priv, buf, false); return vmw_dmabuf_pin_in_placement(dev_priv, buf, &vmw_mob_placement, false); default: return -EINVAL; } return ret; } static int vmw_framebuffer_unpin(struct vmw_framebuffer *vfb) { struct vmw_private *dev_priv = vmw_priv(vfb->base.dev); struct vmw_dma_buffer *buf; buf = vfb->dmabuf ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer : vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup; if (WARN_ON(!buf)) return 0; return vmw_dmabuf_unpin(dev_priv, buf, false); } /** * vmw_create_dmabuf_proxy - create a proxy surface for the DMA buf * * @dev: DRM device * @mode_cmd: parameters for the new surface * @dmabuf_mob: MOB backing the DMA buf * @srf_out: newly created surface * * When the content FB is a DMA buf, we create a surface as a proxy to the * same buffer. This way we can do a surface copy rather than a surface DMA. * This is a more efficient approach * * RETURNS: * 0 on success, error code otherwise */ static int vmw_create_dmabuf_proxy(struct drm_device *dev, const struct drm_mode_fb_cmd2 *mode_cmd, struct vmw_dma_buffer *dmabuf_mob, struct vmw_surface **srf_out) { uint32_t format; struct drm_vmw_size content_base_size = {0}; struct vmw_resource *res; unsigned int bytes_pp; struct drm_format_name_buf format_name; int ret; switch (mode_cmd->pixel_format) { case DRM_FORMAT_ARGB8888: case DRM_FORMAT_XRGB8888: format = SVGA3D_X8R8G8B8; bytes_pp = 4; break; case DRM_FORMAT_RGB565: case DRM_FORMAT_XRGB1555: format = SVGA3D_R5G6B5; bytes_pp = 2; break; case 8: format = SVGA3D_P8; bytes_pp = 1; break; default: DRM_ERROR("Invalid framebuffer format %s\n", drm_get_format_name(mode_cmd->pixel_format, &format_name)); return -EINVAL; } content_base_size.width = mode_cmd->pitches[0] / bytes_pp; content_base_size.height = mode_cmd->height; content_base_size.depth = 1; ret = vmw_surface_gb_priv_define(dev, 0, /* kernel visible only */ 0, /* flags */ format, true, /* can be a scanout buffer */ 1, /* num of mip levels */ 0, 0, content_base_size, srf_out); if (ret) { DRM_ERROR("Failed to allocate proxy content buffer\n"); return ret; } res = &(*srf_out)->res; /* Reserve and switch the backing mob. */ mutex_lock(&res->dev_priv->cmdbuf_mutex); (void) vmw_resource_reserve(res, false, true); vmw_dmabuf_unreference(&res->backup); res->backup = vmw_dmabuf_reference(dmabuf_mob); res->backup_offset = 0; vmw_resource_unreserve(res, false, NULL, 0); mutex_unlock(&res->dev_priv->cmdbuf_mutex); return 0; } static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv, struct vmw_dma_buffer *dmabuf, struct vmw_framebuffer **out, const struct drm_mode_fb_cmd2 *mode_cmd) { struct drm_device *dev = dev_priv->dev; struct vmw_framebuffer_dmabuf *vfbd; unsigned int requested_size; struct drm_format_name_buf format_name; int ret; requested_size = mode_cmd->height * mode_cmd->pitches[0]; if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) { DRM_ERROR("Screen buffer object size is too small " "for requested mode.\n"); return -EINVAL; } /* Limited framebuffer color depth support for screen objects */ if (dev_priv->active_display_unit == vmw_du_screen_object) { switch (mode_cmd->pixel_format) { case DRM_FORMAT_XRGB8888: case DRM_FORMAT_ARGB8888: break; case DRM_FORMAT_XRGB1555: case DRM_FORMAT_RGB565: break; default: DRM_ERROR("Invalid pixel format: %s\n", drm_get_format_name(mode_cmd->pixel_format, &format_name)); return -EINVAL; } } vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL); if (!vfbd) { ret = -ENOMEM; goto out_err1; } drm_helper_mode_fill_fb_struct(dev, &vfbd->base.base, mode_cmd); vfbd->base.dmabuf = true; vfbd->buffer = vmw_dmabuf_reference(dmabuf); vfbd->base.user_handle = mode_cmd->handles[0]; *out = &vfbd->base; ret = drm_framebuffer_init(dev, &vfbd->base.base, &vmw_framebuffer_dmabuf_funcs); if (ret) goto out_err2; return 0; out_err2: vmw_dmabuf_unreference(&dmabuf); kfree(vfbd); out_err1: return ret; } /** * vmw_kms_srf_ok - check if a surface can be created * * @width: requested width * @height: requested height * * Surfaces need to be less than texture size */ static bool vmw_kms_srf_ok(struct vmw_private *dev_priv, uint32_t width, uint32_t height) { if (width > dev_priv->texture_max_width || height > dev_priv->texture_max_height) return false; return true; } /** * vmw_kms_new_framebuffer - Create a new framebuffer. * * @dev_priv: Pointer to device private struct. * @dmabuf: Pointer to dma buffer to wrap the kms framebuffer around. * Either @dmabuf or @surface must be NULL. * @surface: Pointer to a surface to wrap the kms framebuffer around. * Either @dmabuf or @surface must be NULL. * @only_2d: No presents will occur to this dma buffer based framebuffer. This * Helps the code to do some important optimizations. * @mode_cmd: Frame-buffer metadata. */ struct vmw_framebuffer * vmw_kms_new_framebuffer(struct vmw_private *dev_priv, struct vmw_dma_buffer *dmabuf, struct vmw_surface *surface, bool only_2d, const struct drm_mode_fb_cmd2 *mode_cmd) { struct vmw_framebuffer *vfb = NULL; bool is_dmabuf_proxy = false; int ret; /* * We cannot use the SurfaceDMA command in an non-accelerated VM, * therefore, wrap the DMA buf in a surface so we can use the * SurfaceCopy command. */ if (vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height) && dmabuf && only_2d && mode_cmd->width > 64 && /* Don't create a proxy for cursor */ dev_priv->active_display_unit == vmw_du_screen_target) { ret = vmw_create_dmabuf_proxy(dev_priv->dev, mode_cmd, dmabuf, &surface); if (ret) return ERR_PTR(ret); is_dmabuf_proxy = true; } /* Create the new framebuffer depending one what we have */ if (surface) { ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb, mode_cmd, is_dmabuf_proxy); /* * vmw_create_dmabuf_proxy() adds a reference that is no longer * needed */ if (is_dmabuf_proxy) vmw_surface_unreference(&surface); } else if (dmabuf) { ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, dmabuf, &vfb, mode_cmd); } else { BUG(); } if (ret) return ERR_PTR(ret); vfb->pin = vmw_framebuffer_pin; vfb->unpin = vmw_framebuffer_unpin; return vfb; } /* * Generic Kernel modesetting functions */ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev, struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd) { struct vmw_private *dev_priv = vmw_priv(dev); struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; struct vmw_framebuffer *vfb = NULL; struct vmw_surface *surface = NULL; struct vmw_dma_buffer *bo = NULL; struct ttm_base_object *user_obj; int ret; /** * This code should be conditioned on Screen Objects not being used. * If screen objects are used, we can allocate a GMR to hold the * requested framebuffer. */ if (!vmw_kms_validate_mode_vram(dev_priv, mode_cmd->pitches[0], mode_cmd->height)) { DRM_ERROR("Requested mode exceed bounding box limit.\n"); return ERR_PTR(-ENOMEM); } /* * Take a reference on the user object of the resource * backing the kms fb. This ensures that user-space handle * lookups on that resource will always work as long as * it's registered with a kms framebuffer. This is important, * since vmw_execbuf_process identifies resources in the * command stream using user-space handles. */ user_obj = ttm_base_object_lookup(tfile, mode_cmd->handles[0]); if (unlikely(user_obj == NULL)) { DRM_ERROR("Could not locate requested kms frame buffer.\n"); return ERR_PTR(-ENOENT); } /** * End conditioned code. */ /* returns either a dmabuf or surface */ ret = vmw_user_lookup_handle(dev_priv, tfile, mode_cmd->handles[0], &surface, &bo); if (ret) goto err_out; if (!bo && !vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height)) { DRM_ERROR("Surface size cannot exceed %dx%d", dev_priv->texture_max_width, dev_priv->texture_max_height); goto err_out; } vfb = vmw_kms_new_framebuffer(dev_priv, bo, surface, !(dev_priv->capabilities & SVGA_CAP_3D), mode_cmd); if (IS_ERR(vfb)) { ret = PTR_ERR(vfb); goto err_out; } err_out: /* vmw_user_lookup_handle takes one ref so does new_fb */ if (bo) vmw_dmabuf_unreference(&bo); if (surface) vmw_surface_unreference(&surface); if (ret) { DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret); ttm_base_object_unref(&user_obj); return ERR_PTR(ret); } else vfb->user_obj = user_obj; return &vfb->base; } /** * vmw_kms_atomic_check_modeset- validate state object for modeset changes * * @dev: DRM device * @state: the driver state object * * This is a simple wrapper around drm_atomic_helper_check_modeset() for * us to assign a value to mode->crtc_clock so that * drm_calc_timestamping_constants() won't throw an error message * * RETURNS * Zero for success or -errno */ static int vmw_kms_atomic_check_modeset(struct drm_device *dev, struct drm_atomic_state *state) { struct drm_crtc_state *crtc_state; struct drm_crtc *crtc; struct vmw_private *dev_priv = vmw_priv(dev); int i; for_each_new_crtc_in_state(state, crtc, crtc_state, i) { unsigned long requested_bb_mem = 0; if (dev_priv->active_display_unit == vmw_du_screen_target) { if (crtc->primary->fb) { int cpp = crtc->primary->fb->pitches[0] / crtc->primary->fb->width; requested_bb_mem += crtc->mode.hdisplay * cpp * crtc->mode.vdisplay; } if (requested_bb_mem > dev_priv->prim_bb_mem) return -EINVAL; } } return drm_atomic_helper_check(dev, state); } /** * vmw_kms_atomic_commit - Perform an atomic state commit * * @dev: DRM device * @state: the driver state object * @nonblock: Whether nonblocking behaviour is requested * * This is a simple wrapper around drm_atomic_helper_commit() for * us to clear the nonblocking value. * * Nonblocking commits currently cause synchronization issues * for vmwgfx. * * RETURNS * Zero for success or negative error code on failure. */ int vmw_kms_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state, bool nonblock) { return drm_atomic_helper_commit(dev, state, false); } static const struct drm_mode_config_funcs vmw_kms_funcs = { .fb_create = vmw_kms_fb_create, .atomic_check = vmw_kms_atomic_check_modeset, .atomic_commit = vmw_kms_atomic_commit, }; static int vmw_kms_generic_present(struct vmw_private *dev_priv, struct drm_file *file_priv, struct vmw_framebuffer *vfb, struct vmw_surface *surface, uint32_t sid, int32_t destX, int32_t destY, struct drm_vmw_rect *clips, uint32_t num_clips) { return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips, &surface->res, destX, destY, num_clips, 1, NULL); } int vmw_kms_present(struct vmw_private *dev_priv, struct drm_file *file_priv, struct vmw_framebuffer *vfb, struct vmw_surface *surface, uint32_t sid, int32_t destX, int32_t destY, struct drm_vmw_rect *clips, uint32_t num_clips) { int ret; switch (dev_priv->active_display_unit) { case vmw_du_screen_target: ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips, &surface->res, destX, destY, num_clips, 1, NULL); break; case vmw_du_screen_object: ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface, sid, destX, destY, clips, num_clips); break; default: WARN_ONCE(true, "Present called with invalid display system.\n"); ret = -ENOSYS; break; } if (ret) return ret; vmw_fifo_flush(dev_priv, false); return 0; } static void vmw_kms_create_hotplug_mode_update_property(struct vmw_private *dev_priv) { if (dev_priv->hotplug_mode_update_property) return; dev_priv->hotplug_mode_update_property = drm_property_create_range(dev_priv->dev, DRM_MODE_PROP_IMMUTABLE, "hotplug_mode_update", 0, 1); if (!dev_priv->hotplug_mode_update_property) return; } int vmw_kms_init(struct vmw_private *dev_priv) { struct drm_device *dev = dev_priv->dev; int ret; drm_mode_config_init(dev); dev->mode_config.funcs = &vmw_kms_funcs; dev->mode_config.min_width = 1; dev->mode_config.min_height = 1; dev->mode_config.max_width = dev_priv->texture_max_width; dev->mode_config.max_height = dev_priv->texture_max_height; drm_mode_create_suggested_offset_properties(dev); vmw_kms_create_hotplug_mode_update_property(dev_priv); ret = vmw_kms_stdu_init_display(dev_priv); if (ret) { ret = vmw_kms_sou_init_display(dev_priv); if (ret) /* Fallback */ ret = vmw_kms_ldu_init_display(dev_priv); } return ret; } int vmw_kms_close(struct vmw_private *dev_priv) { int ret = 0; /* * Docs says we should take the lock before calling this function * but since it destroys encoders and our destructor calls * drm_encoder_cleanup which takes the lock we deadlock. */ drm_mode_config_cleanup(dev_priv->dev); if (dev_priv->active_display_unit == vmw_du_legacy) ret = vmw_kms_ldu_close_display(dev_priv); return ret; } int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_vmw_cursor_bypass_arg *arg = data; struct vmw_display_unit *du; struct drm_crtc *crtc; int ret = 0; mutex_lock(&dev->mode_config.mutex); if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) { list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { du = vmw_crtc_to_du(crtc); du->hotspot_x = arg->xhot; du->hotspot_y = arg->yhot; } mutex_unlock(&dev->mode_config.mutex); return 0; } crtc = drm_crtc_find(dev, file_priv, arg->crtc_id); if (!crtc) { ret = -ENOENT; goto out; } du = vmw_crtc_to_du(crtc); du->hotspot_x = arg->xhot; du->hotspot_y = arg->yhot; out: mutex_unlock(&dev->mode_config.mutex); return ret; } int vmw_kms_write_svga(struct vmw_private *vmw_priv, unsigned width, unsigned height, unsigned pitch, unsigned bpp, unsigned depth) { if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch); else if (vmw_fifo_have_pitchlock(vmw_priv)) vmw_mmio_write(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK); vmw_write(vmw_priv, SVGA_REG_WIDTH, width); vmw_write(vmw_priv, SVGA_REG_HEIGHT, height); vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp); if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) { DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n", depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH)); return -EINVAL; } return 0; } int vmw_kms_save_vga(struct vmw_private *vmw_priv) { struct vmw_vga_topology_state *save; uint32_t i; vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH); vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT); vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL); if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) vmw_priv->vga_pitchlock = vmw_read(vmw_priv, SVGA_REG_PITCHLOCK); else if (vmw_fifo_have_pitchlock(vmw_priv)) vmw_priv->vga_pitchlock = vmw_mmio_read(vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK); if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) return 0; vmw_priv->num_displays = vmw_read(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS); if (vmw_priv->num_displays == 0) vmw_priv->num_displays = 1; for (i = 0; i < vmw_priv->num_displays; ++i) { save = &vmw_priv->vga_save[i]; vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i); save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY); save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X); save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y); save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH); save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT); vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); if (i == 0 && vmw_priv->num_displays == 1 && save->width == 0 && save->height == 0) { /* * It should be fairly safe to assume that these * values are uninitialized. */ save->width = vmw_priv->vga_width - save->pos_x; save->height = vmw_priv->vga_height - save->pos_y; } } return 0; } int vmw_kms_restore_vga(struct vmw_private *vmw_priv) { struct vmw_vga_topology_state *save; uint32_t i; vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width); vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height); vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp); if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, vmw_priv->vga_pitchlock); else if (vmw_fifo_have_pitchlock(vmw_priv)) vmw_mmio_write(vmw_priv->vga_pitchlock, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK); if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) return 0; for (i = 0; i < vmw_priv->num_displays; ++i) { save = &vmw_priv->vga_save[i]; vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i); vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary); vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x); vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y); vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width); vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height); vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); } return 0; } bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv, uint32_t pitch, uint32_t height) { return ((u64) pitch * (u64) height) < (u64) ((dev_priv->active_display_unit == vmw_du_screen_target) ? dev_priv->prim_bb_mem : dev_priv->vram_size); } /** * Function called by DRM code called with vbl_lock held. */ u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe) { return 0; } /** * Function called by DRM code called with vbl_lock held. */ int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe) { return -EINVAL; } /** * Function called by DRM code called with vbl_lock held. */ void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe) { } /* * Small shared kms functions. */ static int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num, struct drm_vmw_rect *rects) { struct drm_device *dev = dev_priv->dev; struct vmw_display_unit *du; struct drm_connector *con; mutex_lock(&dev->mode_config.mutex); #if 0 { unsigned int i; DRM_INFO("%s: new layout ", __func__); for (i = 0; i < num; i++) DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y, rects[i].w, rects[i].h); DRM_INFO("\n"); } #endif list_for_each_entry(con, &dev->mode_config.connector_list, head) { du = vmw_connector_to_du(con); if (num > du->unit) { du->pref_width = rects[du->unit].w; du->pref_height = rects[du->unit].h; du->pref_active = true; du->gui_x = rects[du->unit].x; du->gui_y = rects[du->unit].y; drm_object_property_set_value (&con->base, dev->mode_config.suggested_x_property, du->gui_x); drm_object_property_set_value (&con->base, dev->mode_config.suggested_y_property, du->gui_y); } else { du->pref_width = 800; du->pref_height = 600; du->pref_active = false; drm_object_property_set_value (&con->base, dev->mode_config.suggested_x_property, 0); drm_object_property_set_value (&con->base, dev->mode_config.suggested_y_property, 0); } con->status = vmw_du_connector_detect(con, true); } mutex_unlock(&dev->mode_config.mutex); drm_sysfs_hotplug_event(dev); return 0; } int vmw_du_crtc_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b, uint32_t size, struct drm_modeset_acquire_ctx *ctx) { struct vmw_private *dev_priv = vmw_priv(crtc->dev); int i; for (i = 0; i < size; i++) { DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i, r[i], g[i], b[i]); vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8); vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8); vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8); } return 0; } int vmw_du_connector_dpms(struct drm_connector *connector, int mode) { return 0; } enum drm_connector_status vmw_du_connector_detect(struct drm_connector *connector, bool force) { uint32_t num_displays; struct drm_device *dev = connector->dev; struct vmw_private *dev_priv = vmw_priv(dev); struct vmw_display_unit *du = vmw_connector_to_du(connector); num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS); return ((vmw_connector_to_du(connector)->unit < num_displays && du->pref_active) ? connector_status_connected : connector_status_disconnected); } static struct drm_display_mode vmw_kms_connector_builtin[] = { /* 640x480@60Hz */ { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656, 752, 800, 0, 480, 489, 492, 525, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 800x600@60Hz */ { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840, 968, 1056, 0, 600, 601, 605, 628, 0, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@60Hz */ { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048, 1184, 1344, 0, 768, 771, 777, 806, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1152x864@75Hz */ { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216, 1344, 1600, 0, 864, 865, 868, 900, 0, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x768@60Hz */ { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344, 1472, 1664, 0, 768, 771, 778, 798, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x800@60Hz */ { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352, 1480, 1680, 0, 800, 803, 809, 831, 0, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1280x960@60Hz */ { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376, 1488, 1800, 0, 960, 961, 964, 1000, 0, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@60Hz */ { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328, 1440, 1688, 0, 1024, 1025, 1028, 1066, 0, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1360x768@60Hz */ { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424, 1536, 1792, 0, 768, 771, 777, 795, 0, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1440x1050@60Hz */ { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488, 1632, 1864, 0, 1050, 1053, 1057, 1089, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1440x900@60Hz */ { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520, 1672, 1904, 0, 900, 903, 909, 934, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1600x1200@60Hz */ { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664, 1856, 2160, 0, 1200, 1201, 1204, 1250, 0, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1680x1050@60Hz */ { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784, 1960, 2240, 0, 1050, 1053, 1059, 1089, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1792x1344@60Hz */ { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920, 2120, 2448, 0, 1344, 1345, 1348, 1394, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1853x1392@60Hz */ { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952, 2176, 2528, 0, 1392, 1393, 1396, 1439, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1920x1200@60Hz */ { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056, 2256, 2592, 0, 1200, 1203, 1209, 1245, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1920x1440@60Hz */ { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048, 2256, 2600, 0, 1440, 1441, 1444, 1500, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 2560x1600@60Hz */ { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752, 3032, 3504, 0, 1600, 1603, 1609, 1658, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* Terminate */ { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) }, }; /** * vmw_guess_mode_timing - Provide fake timings for a * 60Hz vrefresh mode. * * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay * members filled in. */ void vmw_guess_mode_timing(struct drm_display_mode *mode) { mode->hsync_start = mode->hdisplay + 50; mode->hsync_end = mode->hsync_start + 50; mode->htotal = mode->hsync_end + 50; mode->vsync_start = mode->vdisplay + 50; mode->vsync_end = mode->vsync_start + 50; mode->vtotal = mode->vsync_end + 50; mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6; mode->vrefresh = drm_mode_vrefresh(mode); } int vmw_du_connector_fill_modes(struct drm_connector *connector, uint32_t max_width, uint32_t max_height) { struct vmw_display_unit *du = vmw_connector_to_du(connector); struct drm_device *dev = connector->dev; struct vmw_private *dev_priv = vmw_priv(dev); struct drm_display_mode *mode = NULL; struct drm_display_mode *bmode; struct drm_display_mode prefmode = { DRM_MODE("preferred", DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }; int i; u32 assumed_bpp = 4; if (dev_priv->assume_16bpp) assumed_bpp = 2; if (dev_priv->active_display_unit == vmw_du_screen_target) { max_width = min(max_width, dev_priv->stdu_max_width); max_width = min(max_width, dev_priv->texture_max_width); max_height = min(max_height, dev_priv->stdu_max_height); max_height = min(max_height, dev_priv->texture_max_height); } /* Add preferred mode */ mode = drm_mode_duplicate(dev, &prefmode); if (!mode) return 0; mode->hdisplay = du->pref_width; mode->vdisplay = du->pref_height; vmw_guess_mode_timing(mode); if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * assumed_bpp, mode->vdisplay)) { drm_mode_probed_add(connector, mode); } else { drm_mode_destroy(dev, mode); mode = NULL; } if (du->pref_mode) { list_del_init(&du->pref_mode->head); drm_mode_destroy(dev, du->pref_mode); } /* mode might be null here, this is intended */ du->pref_mode = mode; for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) { bmode = &vmw_kms_connector_builtin[i]; if (bmode->hdisplay > max_width || bmode->vdisplay > max_height) continue; if (!vmw_kms_validate_mode_vram(dev_priv, bmode->hdisplay * assumed_bpp, bmode->vdisplay)) continue; mode = drm_mode_duplicate(dev, bmode); if (!mode) return 0; mode->vrefresh = drm_mode_vrefresh(mode); drm_mode_probed_add(connector, mode); } drm_mode_connector_list_update(connector); /* Move the prefered mode first, help apps pick the right mode. */ drm_mode_sort(&connector->modes); return 1; } int vmw_du_connector_set_property(struct drm_connector *connector, struct drm_property *property, uint64_t val) { struct vmw_display_unit *du = vmw_connector_to_du(connector); struct vmw_private *dev_priv = vmw_priv(connector->dev); if (property == dev_priv->implicit_placement_property) du->is_implicit = val; return 0; } /** * vmw_du_connector_atomic_set_property - Atomic version of get property * * @crtc - crtc the property is associated with * * Returns: * Zero on success, negative errno on failure. */ int vmw_du_connector_atomic_set_property(struct drm_connector *connector, struct drm_connector_state *state, struct drm_property *property, uint64_t val) { struct vmw_private *dev_priv = vmw_priv(connector->dev); struct vmw_connector_state *vcs = vmw_connector_state_to_vcs(state); struct vmw_display_unit *du = vmw_connector_to_du(connector); if (property == dev_priv->implicit_placement_property) { vcs->is_implicit = val; /* * We should really be doing a drm_atomic_commit() to * commit the new state, but since this doesn't cause * an immedate state change, this is probably ok */ du->is_implicit = vcs->is_implicit; } else { return -EINVAL; } return 0; } /** * vmw_du_connector_atomic_get_property - Atomic version of get property * * @connector - connector the property is associated with * * Returns: * Zero on success, negative errno on failure. */ int vmw_du_connector_atomic_get_property(struct drm_connector *connector, const struct drm_connector_state *state, struct drm_property *property, uint64_t *val) { struct vmw_private *dev_priv = vmw_priv(connector->dev); struct vmw_connector_state *vcs = vmw_connector_state_to_vcs(state); if (property == dev_priv->implicit_placement_property) *val = vcs->is_implicit; else { DRM_ERROR("Invalid Property %s\n", property->name); return -EINVAL; } return 0; } int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct vmw_private *dev_priv = vmw_priv(dev); struct drm_vmw_update_layout_arg *arg = (struct drm_vmw_update_layout_arg *)data; void __user *user_rects; struct drm_vmw_rect *rects; unsigned rects_size; int ret; int i; u64 total_pixels = 0; struct drm_mode_config *mode_config = &dev->mode_config; struct drm_vmw_rect bounding_box = {0}; if (!arg->num_outputs) { struct drm_vmw_rect def_rect = {0, 0, 800, 600}; vmw_du_update_layout(dev_priv, 1, &def_rect); return 0; } rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect); rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect), GFP_KERNEL); if (unlikely(!rects)) return -ENOMEM; user_rects = (void __user *)(unsigned long)arg->rects; ret = copy_from_user(rects, user_rects, rects_size); if (unlikely(ret != 0)) { DRM_ERROR("Failed to get rects.\n"); ret = -EFAULT; goto out_free; } for (i = 0; i < arg->num_outputs; ++i) { if (rects[i].x < 0 || rects[i].y < 0 || rects[i].x + rects[i].w > mode_config->max_width || rects[i].y + rects[i].h > mode_config->max_height) { DRM_ERROR("Invalid GUI layout.\n"); ret = -EINVAL; goto out_free; } /* * bounding_box.w and bunding_box.h are used as * lower-right coordinates */ if (rects[i].x + rects[i].w > bounding_box.w) bounding_box.w = rects[i].x + rects[i].w; if (rects[i].y + rects[i].h > bounding_box.h) bounding_box.h = rects[i].y + rects[i].h; total_pixels += (u64) rects[i].w * (u64) rects[i].h; } if (dev_priv->active_display_unit == vmw_du_screen_target) { /* * For Screen Targets, the limits for a toplogy are: * 1. Bounding box (assuming 32bpp) must be < prim_bb_mem * 2. Total pixels (assuming 32bpp) must be < prim_bb_mem */ u64 bb_mem = (u64) bounding_box.w * bounding_box.h * 4; u64 pixel_mem = total_pixels * 4; if (bb_mem > dev_priv->prim_bb_mem) { DRM_ERROR("Topology is beyond supported limits.\n"); ret = -EINVAL; goto out_free; } if (pixel_mem > dev_priv->prim_bb_mem) { DRM_ERROR("Combined output size too large\n"); ret = -EINVAL; goto out_free; } } vmw_du_update_layout(dev_priv, arg->num_outputs, rects); out_free: kfree(rects); return ret; } /** * vmw_kms_helper_dirty - Helper to build commands and perform actions based * on a set of cliprects and a set of display units. * * @dev_priv: Pointer to a device private structure. * @framebuffer: Pointer to the framebuffer on which to perform the actions. * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL. * Cliprects are given in framebuffer coordinates. * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must * be NULL. Cliprects are given in source coordinates. * @dest_x: X coordinate offset for the crtc / destination clip rects. * @dest_y: Y coordinate offset for the crtc / destination clip rects. * @num_clips: Number of cliprects in the @clips or @vclips array. * @increment: Integer with which to increment the clip counter when looping. * Used to skip a predetermined number of clip rects. * @dirty: Closure structure. See the description of struct vmw_kms_dirty. */ int vmw_kms_helper_dirty(struct vmw_private *dev_priv, struct vmw_framebuffer *framebuffer, const struct drm_clip_rect *clips, const struct drm_vmw_rect *vclips, s32 dest_x, s32 dest_y, int num_clips, int increment, struct vmw_kms_dirty *dirty) { struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS]; struct drm_crtc *crtc; u32 num_units = 0; u32 i, k; dirty->dev_priv = dev_priv; list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) { if (crtc->primary->fb != &framebuffer->base) continue; units[num_units++] = vmw_crtc_to_du(crtc); } for (k = 0; k < num_units; k++) { struct vmw_display_unit *unit = units[k]; s32 crtc_x = unit->crtc.x; s32 crtc_y = unit->crtc.y; s32 crtc_width = unit->crtc.mode.hdisplay; s32 crtc_height = unit->crtc.mode.vdisplay; const struct drm_clip_rect *clips_ptr = clips; const struct drm_vmw_rect *vclips_ptr = vclips; dirty->unit = unit; if (dirty->fifo_reserve_size > 0) { dirty->cmd = vmw_fifo_reserve(dev_priv, dirty->fifo_reserve_size); if (!dirty->cmd) { DRM_ERROR("Couldn't reserve fifo space " "for dirty blits.\n"); return -ENOMEM; } memset(dirty->cmd, 0, dirty->fifo_reserve_size); } dirty->num_hits = 0; for (i = 0; i < num_clips; i++, clips_ptr += increment, vclips_ptr += increment) { s32 clip_left; s32 clip_top; /* * Select clip array type. Note that integer type * in @clips is unsigned short, whereas in @vclips * it's 32-bit. */ if (clips) { dirty->fb_x = (s32) clips_ptr->x1; dirty->fb_y = (s32) clips_ptr->y1; dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x - crtc_x; dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y - crtc_y; } else { dirty->fb_x = vclips_ptr->x; dirty->fb_y = vclips_ptr->y; dirty->unit_x2 = dirty->fb_x + vclips_ptr->w + dest_x - crtc_x; dirty->unit_y2 = dirty->fb_y + vclips_ptr->h + dest_y - crtc_y; } dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x; dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y; /* Skip this clip if it's outside the crtc region */ if (dirty->unit_x1 >= crtc_width || dirty->unit_y1 >= crtc_height || dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0) continue; /* Clip right and bottom to crtc limits */ dirty->unit_x2 = min_t(s32, dirty->unit_x2, crtc_width); dirty->unit_y2 = min_t(s32, dirty->unit_y2, crtc_height); /* Clip left and top to crtc limits */ clip_left = min_t(s32, dirty->unit_x1, 0); clip_top = min_t(s32, dirty->unit_y1, 0); dirty->unit_x1 -= clip_left; dirty->unit_y1 -= clip_top; dirty->fb_x -= clip_left; dirty->fb_y -= clip_top; dirty->clip(dirty); } dirty->fifo_commit(dirty); } return 0; } /** * vmw_kms_helper_buffer_prepare - Reserve and validate a buffer object before * command submission. * * @dev_priv. Pointer to a device private structure. * @buf: The buffer object * @interruptible: Whether to perform waits as interruptible. * @validate_as_mob: Whether the buffer should be validated as a MOB. If false, * The buffer will be validated as a GMR. Already pinned buffers will not be * validated. * * Returns 0 on success, negative error code on failure, -ERESTARTSYS if * interrupted by a signal. */ int vmw_kms_helper_buffer_prepare(struct vmw_private *dev_priv, struct vmw_dma_buffer *buf, bool interruptible, bool validate_as_mob) { struct ttm_buffer_object *bo = &buf->base; int ret; ttm_bo_reserve(bo, false, false, NULL); ret = vmw_validate_single_buffer(dev_priv, bo, interruptible, validate_as_mob); if (ret) ttm_bo_unreserve(bo); return ret; } /** * vmw_kms_helper_buffer_revert - Undo the actions of * vmw_kms_helper_buffer_prepare. * * @res: Pointer to the buffer object. * * Helper to be used if an error forces the caller to undo the actions of * vmw_kms_helper_buffer_prepare. */ void vmw_kms_helper_buffer_revert(struct vmw_dma_buffer *buf) { if (buf) ttm_bo_unreserve(&buf->base); } /** * vmw_kms_helper_buffer_finish - Unreserve and fence a buffer object after * kms command submission. * * @dev_priv: Pointer to a device private structure. * @file_priv: Pointer to a struct drm_file representing the caller's * connection. Must be set to NULL if @user_fence_rep is NULL, and conversely * if non-NULL, @user_fence_rep must be non-NULL. * @buf: The buffer object. * @out_fence: Optional pointer to a fence pointer. If non-NULL, a * ref-counted fence pointer is returned here. * @user_fence_rep: Optional pointer to a user-space provided struct * drm_vmw_fence_rep. If provided, @file_priv must also be provided and the * function copies fence data to user-space in a fail-safe manner. */ void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv, struct drm_file *file_priv, struct vmw_dma_buffer *buf, struct vmw_fence_obj **out_fence, struct drm_vmw_fence_rep __user * user_fence_rep) { struct vmw_fence_obj *fence; uint32_t handle; int ret; ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence, file_priv ? &handle : NULL); if (buf) vmw_fence_single_bo(&buf->base, fence); if (file_priv) vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), ret, user_fence_rep, fence, handle, -1, NULL); if (out_fence) *out_fence = fence; else vmw_fence_obj_unreference(&fence); vmw_kms_helper_buffer_revert(buf); } /** * vmw_kms_helper_resource_revert - Undo the actions of * vmw_kms_helper_resource_prepare. * * @res: Pointer to the resource. Typically a surface. * * Helper to be used if an error forces the caller to undo the actions of * vmw_kms_helper_resource_prepare. */ void vmw_kms_helper_resource_revert(struct vmw_resource *res) { vmw_kms_helper_buffer_revert(res->backup); vmw_resource_unreserve(res, false, NULL, 0); mutex_unlock(&res->dev_priv->cmdbuf_mutex); } /** * vmw_kms_helper_resource_prepare - Reserve and validate a resource before * command submission. * * @res: Pointer to the resource. Typically a surface. * @interruptible: Whether to perform waits as interruptible. * * Reserves and validates also the backup buffer if a guest-backed resource. * Returns 0 on success, negative error code on failure. -ERESTARTSYS if * interrupted by a signal. */ int vmw_kms_helper_resource_prepare(struct vmw_resource *res, bool interruptible) { int ret = 0; if (interruptible) ret = mutex_lock_interruptible(&res->dev_priv->cmdbuf_mutex); else mutex_lock(&res->dev_priv->cmdbuf_mutex); if (unlikely(ret != 0)) return -ERESTARTSYS; ret = vmw_resource_reserve(res, interruptible, false); if (ret) goto out_unlock; if (res->backup) { ret = vmw_kms_helper_buffer_prepare(res->dev_priv, res->backup, interruptible, res->dev_priv->has_mob); if (ret) goto out_unreserve; } ret = vmw_resource_validate(res); if (ret) goto out_revert; return 0; out_revert: vmw_kms_helper_buffer_revert(res->backup); out_unreserve: vmw_resource_unreserve(res, false, NULL, 0); out_unlock: mutex_unlock(&res->dev_priv->cmdbuf_mutex); return ret; } /** * vmw_kms_helper_resource_finish - Unreserve and fence a resource after * kms command submission. * * @res: Pointer to the resource. Typically a surface. * @out_fence: Optional pointer to a fence pointer. If non-NULL, a * ref-counted fence pointer is returned here. */ void vmw_kms_helper_resource_finish(struct vmw_resource *res, struct vmw_fence_obj **out_fence) { if (res->backup || out_fence) vmw_kms_helper_buffer_finish(res->dev_priv, NULL, res->backup, out_fence, NULL); vmw_resource_unreserve(res, false, NULL, 0); mutex_unlock(&res->dev_priv->cmdbuf_mutex); } /** * vmw_kms_update_proxy - Helper function to update a proxy surface from * its backing MOB. * * @res: Pointer to the surface resource * @clips: Clip rects in framebuffer (surface) space. * @num_clips: Number of clips in @clips. * @increment: Integer with which to increment the clip counter when looping. * Used to skip a predetermined number of clip rects. * * This function makes sure the proxy surface is updated from its backing MOB * using the region given by @clips. The surface resource @res and its backing * MOB needs to be reserved and validated on call. */ int vmw_kms_update_proxy(struct vmw_resource *res, const struct drm_clip_rect *clips, unsigned num_clips, int increment) { struct vmw_private *dev_priv = res->dev_priv; struct drm_vmw_size *size = &vmw_res_to_srf(res)->base_size; struct { SVGA3dCmdHeader header; SVGA3dCmdUpdateGBImage body; } *cmd; SVGA3dBox *box; size_t copy_size = 0; int i; if (!clips) return 0; cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) * num_clips); if (!cmd) { DRM_ERROR("Couldn't reserve fifo space for proxy surface " "update.\n"); return -ENOMEM; } for (i = 0; i < num_clips; ++i, clips += increment, ++cmd) { box = &cmd->body.box; cmd->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE; cmd->header.size = sizeof(cmd->body); cmd->body.image.sid = res->id; cmd->body.image.face = 0; cmd->body.image.mipmap = 0; if (clips->x1 > size->width || clips->x2 > size->width || clips->y1 > size->height || clips->y2 > size->height) { DRM_ERROR("Invalid clips outsize of framebuffer.\n"); return -EINVAL; } box->x = clips->x1; box->y = clips->y1; box->z = 0; box->w = clips->x2 - clips->x1; box->h = clips->y2 - clips->y1; box->d = 1; copy_size += sizeof(*cmd); } vmw_fifo_commit(dev_priv, copy_size); return 0; } int vmw_kms_fbdev_init_data(struct vmw_private *dev_priv, unsigned unit, u32 max_width, u32 max_height, struct drm_connector **p_con, struct drm_crtc **p_crtc, struct drm_display_mode **p_mode) { struct drm_connector *con; struct vmw_display_unit *du; struct drm_display_mode *mode; int i = 0; list_for_each_entry(con, &dev_priv->dev->mode_config.connector_list, head) { if (i == unit) break; ++i; } if (i != unit) { DRM_ERROR("Could not find initial display unit.\n"); return -EINVAL; } if (list_empty(&con->modes)) (void) vmw_du_connector_fill_modes(con, max_width, max_height); if (list_empty(&con->modes)) { DRM_ERROR("Could not find initial display mode.\n"); return -EINVAL; } du = vmw_connector_to_du(con); *p_con = con; *p_crtc = &du->crtc; list_for_each_entry(mode, &con->modes, head) { if (mode->type & DRM_MODE_TYPE_PREFERRED) break; } if (mode->type & DRM_MODE_TYPE_PREFERRED) *p_mode = mode; else { WARN_ONCE(true, "Could not find initial preferred mode.\n"); *p_mode = list_first_entry(&con->modes, struct drm_display_mode, head); } return 0; } /** * vmw_kms_del_active - unregister a crtc binding to the implicit framebuffer * * @dev_priv: Pointer to a device private struct. * @du: The display unit of the crtc. */ void vmw_kms_del_active(struct vmw_private *dev_priv, struct vmw_display_unit *du) { mutex_lock(&dev_priv->global_kms_state_mutex); if (du->active_implicit) { if (--(dev_priv->num_implicit) == 0) dev_priv->implicit_fb = NULL; du->active_implicit = false; } mutex_unlock(&dev_priv->global_kms_state_mutex); } /** * vmw_kms_add_active - register a crtc binding to an implicit framebuffer * * @vmw_priv: Pointer to a device private struct. * @du: The display unit of the crtc. * @vfb: The implicit framebuffer * * Registers a binding to an implicit framebuffer. */ void vmw_kms_add_active(struct vmw_private *dev_priv, struct vmw_display_unit *du, struct vmw_framebuffer *vfb) { mutex_lock(&dev_priv->global_kms_state_mutex); WARN_ON_ONCE(!dev_priv->num_implicit && dev_priv->implicit_fb); if (!du->active_implicit && du->is_implicit) { dev_priv->implicit_fb = vfb; du->active_implicit = true; dev_priv->num_implicit++; } mutex_unlock(&dev_priv->global_kms_state_mutex); } /** * vmw_kms_screen_object_flippable - Check whether we can page-flip a crtc. * * @dev_priv: Pointer to device-private struct. * @crtc: The crtc we want to flip. * * Returns true or false depending whether it's OK to flip this crtc * based on the criterion that we must not have more than one implicit * frame-buffer at any one time. */ bool vmw_kms_crtc_flippable(struct vmw_private *dev_priv, struct drm_crtc *crtc) { struct vmw_display_unit *du = vmw_crtc_to_du(crtc); bool ret; mutex_lock(&dev_priv->global_kms_state_mutex); ret = !du->is_implicit || dev_priv->num_implicit == 1; mutex_unlock(&dev_priv->global_kms_state_mutex); return ret; } /** * vmw_kms_update_implicit_fb - Update the implicit fb. * * @dev_priv: Pointer to device-private struct. * @crtc: The crtc the new implicit frame-buffer is bound to. */ void vmw_kms_update_implicit_fb(struct vmw_private *dev_priv, struct drm_crtc *crtc) { struct vmw_display_unit *du = vmw_crtc_to_du(crtc); struct vmw_framebuffer *vfb; mutex_lock(&dev_priv->global_kms_state_mutex); if (!du->is_implicit) goto out_unlock; vfb = vmw_framebuffer_to_vfb(crtc->primary->fb); WARN_ON_ONCE(dev_priv->num_implicit != 1 && dev_priv->implicit_fb != vfb); dev_priv->implicit_fb = vfb; out_unlock: mutex_unlock(&dev_priv->global_kms_state_mutex); } /** * vmw_kms_create_implicit_placement_proparty - Set up the implicit placement * property. * * @dev_priv: Pointer to a device private struct. * @immutable: Whether the property is immutable. * * Sets up the implicit placement property unless it's already set up. */ void vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv, bool immutable) { if (dev_priv->implicit_placement_property) return; dev_priv->implicit_placement_property = drm_property_create_range(dev_priv->dev, immutable ? DRM_MODE_PROP_IMMUTABLE : 0, "implicit_placement", 0, 1); } /** * vmw_kms_set_config - Wrapper around drm_atomic_helper_set_config * * @set: The configuration to set. * * The vmwgfx Xorg driver doesn't assign the mode::type member, which * when drm_mode_set_crtcinfo is called as part of the configuration setting * causes it to return incorrect crtc dimensions causing severe problems in * the vmwgfx modesetting. So explicitly clear that member before calling * into drm_atomic_helper_set_config. */ int vmw_kms_set_config(struct drm_mode_set *set, struct drm_modeset_acquire_ctx *ctx) { if (set && set->mode) set->mode->type = 0; return drm_atomic_helper_set_config(set, ctx); }