| /************************************************************************** |
| * |
| * Copyright © 2009 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" |
| |
| /* Might need a hrtimer here? */ |
| #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1) |
| |
| static int vmw_surface_dmabuf_pin(struct vmw_framebuffer *vfb); |
| static int vmw_surface_dmabuf_unpin(struct vmw_framebuffer *vfb); |
| |
| void vmw_display_unit_cleanup(struct vmw_display_unit *du) |
| { |
| if (du->cursor_surface) |
| vmw_surface_unreference(&du->cursor_surface); |
| if (du->cursor_dmabuf) |
| vmw_dmabuf_unreference(&du->cursor_dmabuf); |
| drm_crtc_cleanup(&du->crtc); |
| drm_encoder_cleanup(&du->encoder); |
| drm_connector_cleanup(&du->connector); |
| } |
| |
| /* |
| * Display Unit Cursor functions |
| */ |
| |
| 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 = cpu_to_le32(SVGA_CMD_DEFINE_ALPHA_CURSOR); |
| cmd->cursor.id = cpu_to_le32(0); |
| cmd->cursor.width = cpu_to_le32(width); |
| cmd->cursor.height = cpu_to_le32(height); |
| cmd->cursor.hotspotX = cpu_to_le32(hotspotX); |
| cmd->cursor.hotspotY = cpu_to_le32(hotspotY); |
| |
| vmw_fifo_commit(dev_priv, cmd_size); |
| |
| return 0; |
| } |
| |
| void vmw_cursor_update_position(struct vmw_private *dev_priv, |
| bool show, int x, int y) |
| { |
| __le32 __iomem *fifo_mem = dev_priv->mmio_virt; |
| uint32_t count; |
| |
| iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON); |
| iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X); |
| iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y); |
| count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT); |
| iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT); |
| } |
| |
| int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv, |
| uint32_t handle, uint32_t width, uint32_t height) |
| { |
| struct vmw_private *dev_priv = vmw_priv(crtc->dev); |
| struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; |
| struct vmw_display_unit *du = vmw_crtc_to_du(crtc); |
| struct vmw_surface *surface = NULL; |
| struct vmw_dma_buffer *dmabuf = NULL; |
| int ret; |
| |
| if (handle) { |
| ret = vmw_user_surface_lookup_handle(dev_priv, tfile, |
| handle, &surface); |
| if (!ret) { |
| if (!surface->snooper.image) { |
| DRM_ERROR("surface not suitable for cursor\n"); |
| return -EINVAL; |
| } |
| } else { |
| ret = vmw_user_dmabuf_lookup(tfile, |
| handle, &dmabuf); |
| if (ret) { |
| DRM_ERROR("failed to find surface or dmabuf: %i\n", ret); |
| return -EINVAL; |
| } |
| } |
| } |
| |
| /* takedown old cursor */ |
| if (du->cursor_surface) { |
| du->cursor_surface->snooper.crtc = NULL; |
| vmw_surface_unreference(&du->cursor_surface); |
| } |
| if (du->cursor_dmabuf) |
| vmw_dmabuf_unreference(&du->cursor_dmabuf); |
| |
| /* setup new image */ |
| if (surface) { |
| /* vmw_user_surface_lookup takes one reference */ |
| du->cursor_surface = surface; |
| |
| du->cursor_surface->snooper.crtc = crtc; |
| du->cursor_age = du->cursor_surface->snooper.age; |
| vmw_cursor_update_image(dev_priv, surface->snooper.image, |
| 64, 64, du->hotspot_x, du->hotspot_y); |
| } else if (dmabuf) { |
| struct ttm_bo_kmap_obj map; |
| unsigned long kmap_offset; |
| unsigned long kmap_num; |
| void *virtual; |
| bool dummy; |
| |
| /* vmw_user_surface_lookup takes one reference */ |
| du->cursor_dmabuf = dmabuf; |
| |
| kmap_offset = 0; |
| kmap_num = (64*64*4) >> PAGE_SHIFT; |
| |
| ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0); |
| 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); |
| vmw_cursor_update_image(dev_priv, virtual, 64, 64, |
| du->hotspot_x, du->hotspot_y); |
| |
| ttm_bo_kunmap(&map); |
| err_unreserve: |
| ttm_bo_unreserve(&dmabuf->base); |
| |
| } else { |
| vmw_cursor_update_position(dev_priv, false, 0, 0); |
| return 0; |
| } |
| |
| vmw_cursor_update_position(dev_priv, true, du->cursor_x, du->cursor_y); |
| |
| return 0; |
| } |
| |
| int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) |
| { |
| struct vmw_private *dev_priv = vmw_priv(crtc->dev); |
| struct vmw_display_unit *du = vmw_crtc_to_du(crtc); |
| bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false; |
| |
| du->cursor_x = x + crtc->x; |
| du->cursor_y = y + crtc->y; |
| |
| vmw_cursor_update_position(dev_priv, shown, |
| du->cursor_x, du->cursor_y); |
| |
| return 0; |
| } |
| |
| 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 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.pitch != (64 * 4) || |
| 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->w != 64 || box->h != 64 || box->d != 1 || |
| box_count != 1) { |
| /* TODO handle none page aligned offsets */ |
| /* TODO handle partial uploads and pitch != 256 */ |
| /* TODO handle more then one copy (size != 64) */ |
| DRM_ERROR("lazy programmer, can't handle weird stuff\n"); |
| return; |
| } |
| |
| kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT; |
| kmap_num = (64*64*4) >> PAGE_SHIFT; |
| |
| ret = ttm_bo_reserve(bo, true, false, false, 0); |
| 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); |
| |
| memcpy(srf->snooper.image, virtual, 64*64*4); |
| srf->snooper.age++; |
| |
| /* we can't call this function from this function since execbuf has |
| * reserved fifo space. |
| * |
| * if (srf->snooper.crtc) |
| * vmw_ldu_crtc_cursor_update_image(dev_priv, |
| * srf->snooper.image, 64, 64, |
| * du->hotspot_x, du->hotspot_y); |
| */ |
| |
| ttm_bo_kunmap(&map); |
| err_unreserve: |
| ttm_bo_unreserve(bo); |
| } |
| |
| 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->hotspot_y); |
| } |
| |
| mutex_unlock(&dev->mode_config.mutex); |
| } |
| |
| /* |
| * Generic framebuffer code |
| */ |
| |
| int vmw_framebuffer_create_handle(struct drm_framebuffer *fb, |
| struct drm_file *file_priv, |
| unsigned int *handle) |
| { |
| if (handle) |
| handle = 0; |
| |
| return 0; |
| } |
| |
| /* |
| * Surface framebuffer code |
| */ |
| |
| #define vmw_framebuffer_to_vfbs(x) \ |
| container_of(x, struct vmw_framebuffer_surface, base.base) |
| |
| struct vmw_framebuffer_surface { |
| struct vmw_framebuffer base; |
| struct vmw_surface *surface; |
| struct vmw_dma_buffer *buffer; |
| struct delayed_work d_work; |
| struct mutex work_lock; |
| bool present_fs; |
| struct list_head head; |
| struct drm_master *master; |
| }; |
| |
| /** |
| * vmw_kms_idle_workqueues - Flush workqueues on this master |
| * |
| * @vmaster - Pointer identifying the master, for the surfaces of which |
| * we idle the dirty work queues. |
| * |
| * This function should be called with the ttm lock held in exclusive mode |
| * to idle all dirty work queues before the fifo is taken down. |
| * |
| * The work task may actually requeue itself, but after the flush returns we're |
| * sure that there's nothing to present, since the ttm lock is held in |
| * exclusive mode, so the fifo will never get used. |
| */ |
| |
| void vmw_kms_idle_workqueues(struct vmw_master *vmaster) |
| { |
| struct vmw_framebuffer_surface *entry; |
| |
| mutex_lock(&vmaster->fb_surf_mutex); |
| list_for_each_entry(entry, &vmaster->fb_surf, head) { |
| if (cancel_delayed_work_sync(&entry->d_work)) |
| (void) entry->d_work.work.func(&entry->d_work.work); |
| |
| (void) cancel_delayed_work_sync(&entry->d_work); |
| } |
| mutex_unlock(&vmaster->fb_surf_mutex); |
| } |
| |
| void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer) |
| { |
| struct vmw_framebuffer_surface *vfbs = |
| vmw_framebuffer_to_vfbs(framebuffer); |
| struct vmw_master *vmaster = vmw_master(vfbs->master); |
| |
| |
| mutex_lock(&vmaster->fb_surf_mutex); |
| list_del(&vfbs->head); |
| mutex_unlock(&vmaster->fb_surf_mutex); |
| |
| cancel_delayed_work_sync(&vfbs->d_work); |
| drm_master_put(&vfbs->master); |
| drm_framebuffer_cleanup(framebuffer); |
| vmw_surface_unreference(&vfbs->surface); |
| |
| kfree(vfbs); |
| } |
| |
| static void vmw_framebuffer_present_fs_callback(struct work_struct *work) |
| { |
| struct delayed_work *d_work = |
| container_of(work, struct delayed_work, work); |
| struct vmw_framebuffer_surface *vfbs = |
| container_of(d_work, struct vmw_framebuffer_surface, d_work); |
| struct vmw_surface *surf = vfbs->surface; |
| struct drm_framebuffer *framebuffer = &vfbs->base.base; |
| struct vmw_private *dev_priv = vmw_priv(framebuffer->dev); |
| |
| struct { |
| SVGA3dCmdHeader header; |
| SVGA3dCmdPresent body; |
| SVGA3dCopyRect cr; |
| } *cmd; |
| |
| /** |
| * Strictly we should take the ttm_lock in read mode before accessing |
| * the fifo, to make sure the fifo is present and up. However, |
| * instead we flush all workqueues under the ttm lock in exclusive mode |
| * before taking down the fifo. |
| */ |
| mutex_lock(&vfbs->work_lock); |
| if (!vfbs->present_fs) |
| goto out_unlock; |
| |
| cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); |
| if (unlikely(cmd == NULL)) |
| goto out_resched; |
| |
| cmd->header.id = cpu_to_le32(SVGA_3D_CMD_PRESENT); |
| cmd->header.size = cpu_to_le32(sizeof(cmd->body) + sizeof(cmd->cr)); |
| cmd->body.sid = cpu_to_le32(surf->res.id); |
| cmd->cr.x = cpu_to_le32(0); |
| cmd->cr.y = cpu_to_le32(0); |
| cmd->cr.srcx = cmd->cr.x; |
| cmd->cr.srcy = cmd->cr.y; |
| cmd->cr.w = cpu_to_le32(framebuffer->width); |
| cmd->cr.h = cpu_to_le32(framebuffer->height); |
| vfbs->present_fs = false; |
| vmw_fifo_commit(dev_priv, sizeof(*cmd)); |
| out_resched: |
| /** |
| * Will not re-add if already pending. |
| */ |
| schedule_delayed_work(&vfbs->d_work, VMWGFX_PRESENT_RATE); |
| out_unlock: |
| mutex_unlock(&vfbs->work_lock); |
| } |
| |
| |
| 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_master *vmaster = vmw_master(file_priv->master); |
| struct vmw_framebuffer_surface *vfbs = |
| vmw_framebuffer_to_vfbs(framebuffer); |
| struct vmw_surface *surf = vfbs->surface; |
| struct drm_clip_rect norect; |
| SVGA3dCopyRect *cr; |
| int i, inc = 1; |
| int ret; |
| |
| struct { |
| SVGA3dCmdHeader header; |
| SVGA3dCmdPresent body; |
| SVGA3dCopyRect cr; |
| } *cmd; |
| |
| if (unlikely(vfbs->master != file_priv->master)) |
| return -EINVAL; |
| |
| ret = ttm_read_lock(&vmaster->lock, true); |
| if (unlikely(ret != 0)) |
| return ret; |
| |
| if (!num_clips || |
| !(dev_priv->fifo.capabilities & |
| SVGA_FIFO_CAP_SCREEN_OBJECT)) { |
| int ret; |
| |
| mutex_lock(&vfbs->work_lock); |
| vfbs->present_fs = true; |
| ret = schedule_delayed_work(&vfbs->d_work, VMWGFX_PRESENT_RATE); |
| mutex_unlock(&vfbs->work_lock); |
| if (ret) { |
| /** |
| * No work pending, Force immediate present. |
| */ |
| vmw_framebuffer_present_fs_callback(&vfbs->d_work.work); |
| } |
| ttm_read_unlock(&vmaster->lock); |
| return 0; |
| } |
| |
| 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 */ |
| } |
| |
| cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) + (num_clips - 1) * sizeof(cmd->cr)); |
| if (unlikely(cmd == NULL)) { |
| DRM_ERROR("Fifo reserve failed.\n"); |
| ttm_read_unlock(&vmaster->lock); |
| return -ENOMEM; |
| } |
| |
| memset(cmd, 0, sizeof(*cmd)); |
| |
| cmd->header.id = cpu_to_le32(SVGA_3D_CMD_PRESENT); |
| cmd->header.size = cpu_to_le32(sizeof(cmd->body) + num_clips * sizeof(cmd->cr)); |
| cmd->body.sid = cpu_to_le32(surf->res.id); |
| |
| for (i = 0, cr = &cmd->cr; i < num_clips; i++, cr++, clips += inc) { |
| cr->x = cpu_to_le16(clips->x1); |
| cr->y = cpu_to_le16(clips->y1); |
| cr->srcx = cr->x; |
| cr->srcy = cr->y; |
| cr->w = cpu_to_le16(clips->x2 - clips->x1); |
| cr->h = cpu_to_le16(clips->y2 - clips->y1); |
| } |
| |
| vmw_fifo_commit(dev_priv, sizeof(*cmd) + (num_clips - 1) * sizeof(cmd->cr)); |
| ttm_read_unlock(&vmaster->lock); |
| return 0; |
| } |
| |
| static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = { |
| .destroy = vmw_framebuffer_surface_destroy, |
| .dirty = vmw_framebuffer_surface_dirty, |
| .create_handle = vmw_framebuffer_create_handle, |
| }; |
| |
| static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv, |
| struct drm_file *file_priv, |
| struct vmw_surface *surface, |
| struct vmw_framebuffer **out, |
| const struct drm_mode_fb_cmd |
| *mode_cmd) |
| |
| { |
| struct drm_device *dev = dev_priv->dev; |
| struct vmw_framebuffer_surface *vfbs; |
| enum SVGA3dSurfaceFormat format; |
| struct vmw_master *vmaster = vmw_master(file_priv->master); |
| int ret; |
| |
| /* |
| * Sanity checks. |
| */ |
| |
| if (unlikely(surface->mip_levels[0] != 1 || |
| surface->num_sizes != 1 || |
| surface->sizes[0].width < mode_cmd->width || |
| surface->sizes[0].height < mode_cmd->height || |
| surface->sizes[0].depth != 1)) { |
| DRM_ERROR("Incompatible surface dimensions " |
| "for requested mode.\n"); |
| return -EINVAL; |
| } |
| |
| switch (mode_cmd->depth) { |
| case 32: |
| format = SVGA3D_A8R8G8B8; |
| break; |
| case 24: |
| format = SVGA3D_X8R8G8B8; |
| break; |
| case 16: |
| format = SVGA3D_R5G6B5; |
| break; |
| case 15: |
| format = SVGA3D_A1R5G5B5; |
| break; |
| case 8: |
| format = SVGA3D_LUMINANCE8; |
| break; |
| default: |
| DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth); |
| return -EINVAL; |
| } |
| |
| if (unlikely(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; |
| } |
| |
| ret = drm_framebuffer_init(dev, &vfbs->base.base, |
| &vmw_framebuffer_surface_funcs); |
| if (ret) |
| goto out_err2; |
| |
| if (!vmw_surface_reference(surface)) { |
| DRM_ERROR("failed to reference surface %p\n", surface); |
| goto out_err3; |
| } |
| |
| /* XXX get the first 3 from the surface info */ |
| vfbs->base.base.bits_per_pixel = mode_cmd->bpp; |
| vfbs->base.base.pitch = mode_cmd->pitch; |
| vfbs->base.base.depth = mode_cmd->depth; |
| vfbs->base.base.width = mode_cmd->width; |
| vfbs->base.base.height = mode_cmd->height; |
| vfbs->base.pin = &vmw_surface_dmabuf_pin; |
| vfbs->base.unpin = &vmw_surface_dmabuf_unpin; |
| vfbs->surface = surface; |
| vfbs->master = drm_master_get(file_priv->master); |
| mutex_init(&vfbs->work_lock); |
| |
| mutex_lock(&vmaster->fb_surf_mutex); |
| INIT_DELAYED_WORK(&vfbs->d_work, &vmw_framebuffer_present_fs_callback); |
| list_add_tail(&vfbs->head, &vmaster->fb_surf); |
| mutex_unlock(&vmaster->fb_surf_mutex); |
| |
| *out = &vfbs->base; |
| |
| return 0; |
| |
| out_err3: |
| drm_framebuffer_cleanup(&vfbs->base.base); |
| out_err2: |
| kfree(vfbs); |
| out_err1: |
| return ret; |
| } |
| |
| /* |
| * Dmabuf framebuffer code |
| */ |
| |
| #define vmw_framebuffer_to_vfbd(x) \ |
| container_of(x, struct vmw_framebuffer_dmabuf, base.base) |
| |
| struct vmw_framebuffer_dmabuf { |
| struct vmw_framebuffer base; |
| struct vmw_dma_buffer *buffer; |
| }; |
| |
| 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); |
| |
| kfree(vfbd); |
| } |
| |
| 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_master *vmaster = vmw_master(file_priv->master); |
| struct drm_clip_rect norect; |
| int ret; |
| struct { |
| uint32_t header; |
| SVGAFifoCmdUpdate body; |
| } *cmd; |
| int i, increment = 1; |
| |
| ret = ttm_read_lock(&vmaster->lock, true); |
| if (unlikely(ret != 0)) |
| 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; |
| } |
| |
| cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) * num_clips); |
| if (unlikely(cmd == NULL)) { |
| DRM_ERROR("Fifo reserve failed.\n"); |
| ttm_read_unlock(&vmaster->lock); |
| return -ENOMEM; |
| } |
| |
| for (i = 0; i < num_clips; i++, clips += increment) { |
| cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE); |
| cmd[i].body.x = cpu_to_le32(clips->x1); |
| cmd[i].body.y = cpu_to_le32(clips->y1); |
| cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1); |
| cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1); |
| } |
| |
| vmw_fifo_commit(dev_priv, sizeof(*cmd) * num_clips); |
| ttm_read_unlock(&vmaster->lock); |
| |
| return 0; |
| } |
| |
| static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = { |
| .destroy = vmw_framebuffer_dmabuf_destroy, |
| .dirty = vmw_framebuffer_dmabuf_dirty, |
| .create_handle = vmw_framebuffer_create_handle, |
| }; |
| |
| static int vmw_surface_dmabuf_pin(struct vmw_framebuffer *vfb) |
| { |
| struct vmw_private *dev_priv = vmw_priv(vfb->base.dev); |
| struct vmw_framebuffer_surface *vfbs = |
| vmw_framebuffer_to_vfbs(&vfb->base); |
| unsigned long size = vfbs->base.base.pitch * vfbs->base.base.height; |
| int ret; |
| |
| vfbs->buffer = kzalloc(sizeof(*vfbs->buffer), GFP_KERNEL); |
| if (unlikely(vfbs->buffer == NULL)) |
| return -ENOMEM; |
| |
| vmw_overlay_pause_all(dev_priv); |
| ret = vmw_dmabuf_init(dev_priv, vfbs->buffer, size, |
| &vmw_vram_ne_placement, |
| false, &vmw_dmabuf_bo_free); |
| vmw_overlay_resume_all(dev_priv); |
| if (unlikely(ret != 0)) |
| vfbs->buffer = NULL; |
| |
| return ret; |
| } |
| |
| static int vmw_surface_dmabuf_unpin(struct vmw_framebuffer *vfb) |
| { |
| struct ttm_buffer_object *bo; |
| struct vmw_framebuffer_surface *vfbs = |
| vmw_framebuffer_to_vfbs(&vfb->base); |
| |
| if (unlikely(vfbs->buffer == NULL)) |
| return 0; |
| |
| bo = &vfbs->buffer->base; |
| ttm_bo_unref(&bo); |
| vfbs->buffer = NULL; |
| |
| return 0; |
| } |
| |
| static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb) |
| { |
| struct vmw_private *dev_priv = vmw_priv(vfb->base.dev); |
| struct vmw_framebuffer_dmabuf *vfbd = |
| vmw_framebuffer_to_vfbd(&vfb->base); |
| int ret; |
| |
| |
| vmw_overlay_pause_all(dev_priv); |
| |
| ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer); |
| |
| vmw_overlay_resume_all(dev_priv); |
| |
| WARN_ON(ret != 0); |
| |
| return 0; |
| } |
| |
| static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb) |
| { |
| struct vmw_private *dev_priv = vmw_priv(vfb->base.dev); |
| struct vmw_framebuffer_dmabuf *vfbd = |
| vmw_framebuffer_to_vfbd(&vfb->base); |
| |
| if (!vfbd->buffer) { |
| WARN_ON(!vfbd->buffer); |
| return 0; |
| } |
| |
| return vmw_dmabuf_from_vram(dev_priv, vfbd->buffer); |
| } |
| |
| 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_cmd |
| *mode_cmd) |
| |
| { |
| struct drm_device *dev = dev_priv->dev; |
| struct vmw_framebuffer_dmabuf *vfbd; |
| unsigned int requested_size; |
| int ret; |
| |
| requested_size = mode_cmd->height * mode_cmd->pitch; |
| 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; |
| } |
| |
| vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL); |
| if (!vfbd) { |
| ret = -ENOMEM; |
| goto out_err1; |
| } |
| |
| ret = drm_framebuffer_init(dev, &vfbd->base.base, |
| &vmw_framebuffer_dmabuf_funcs); |
| if (ret) |
| goto out_err2; |
| |
| if (!vmw_dmabuf_reference(dmabuf)) { |
| DRM_ERROR("failed to reference dmabuf %p\n", dmabuf); |
| goto out_err3; |
| } |
| |
| vfbd->base.base.bits_per_pixel = mode_cmd->bpp; |
| vfbd->base.base.pitch = mode_cmd->pitch; |
| vfbd->base.base.depth = mode_cmd->depth; |
| vfbd->base.base.width = mode_cmd->width; |
| vfbd->base.base.height = mode_cmd->height; |
| vfbd->base.pin = vmw_framebuffer_dmabuf_pin; |
| vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin; |
| vfbd->buffer = dmabuf; |
| *out = &vfbd->base; |
| |
| return 0; |
| |
| out_err3: |
| drm_framebuffer_cleanup(&vfbd->base.base); |
| out_err2: |
| kfree(vfbd); |
| out_err1: |
| return ret; |
| } |
| |
| /* |
| * Generic Kernel modesetting functions |
| */ |
| |
| static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev, |
| struct drm_file *file_priv, |
| struct drm_mode_fb_cmd *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; |
| u64 required_size; |
| 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. |
| */ |
| |
| required_size = mode_cmd->pitch * mode_cmd->height; |
| if (unlikely(required_size > (u64) dev_priv->vram_size)) { |
| DRM_ERROR("VRAM size is too small for requested mode.\n"); |
| return NULL; |
| } |
| |
| /** |
| * End conditioned code. |
| */ |
| |
| ret = vmw_user_surface_lookup_handle(dev_priv, tfile, |
| mode_cmd->handle, &surface); |
| if (ret) |
| goto try_dmabuf; |
| |
| if (!surface->scanout) |
| goto err_not_scanout; |
| |
| ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv, surface, |
| &vfb, mode_cmd); |
| |
| /* vmw_user_surface_lookup takes one ref so does new_fb */ |
| vmw_surface_unreference(&surface); |
| |
| if (ret) { |
| DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret); |
| return ERR_PTR(ret); |
| } |
| return &vfb->base; |
| |
| try_dmabuf: |
| DRM_INFO("%s: trying buffer\n", __func__); |
| |
| ret = vmw_user_dmabuf_lookup(tfile, mode_cmd->handle, &bo); |
| if (ret) { |
| DRM_ERROR("failed to find buffer: %i\n", ret); |
| return ERR_PTR(-ENOENT); |
| } |
| |
| ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb, |
| mode_cmd); |
| |
| /* vmw_user_dmabuf_lookup takes one ref so does new_fb */ |
| vmw_dmabuf_unreference(&bo); |
| |
| if (ret) { |
| DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret); |
| return ERR_PTR(ret); |
| } |
| |
| return &vfb->base; |
| |
| err_not_scanout: |
| DRM_ERROR("surface not marked as scanout\n"); |
| /* vmw_user_surface_lookup takes one ref */ |
| vmw_surface_unreference(&surface); |
| |
| return ERR_PTR(-EINVAL); |
| } |
| |
| static struct drm_mode_config_funcs vmw_kms_funcs = { |
| .fb_create = vmw_kms_fb_create, |
| }; |
| |
| 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; |
| /* assumed largest fb size */ |
| dev->mode_config.max_width = 8192; |
| dev->mode_config.max_height = 8192; |
| |
| ret = vmw_kms_init_legacy_display_system(dev_priv); |
| |
| return 0; |
| } |
| |
| int vmw_kms_close(struct vmw_private *dev_priv) |
| { |
| /* |
| * 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); |
| vmw_kms_close_legacy_display_system(dev_priv); |
| return 0; |
| } |
| |
| 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_mode_object *obj; |
| 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; |
| } |
| |
| obj = drm_mode_object_find(dev, arg->crtc_id, DRM_MODE_OBJECT_CRTC); |
| if (!obj) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| crtc = obj_to_crtc(obj); |
| 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)) |
| iowrite32(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 = ioread32(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)) |
| iowrite32(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; |
| } |
| |
| 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; |
| struct vmw_master *vmaster = vmw_master(file_priv->master); |
| void __user *user_rects; |
| struct drm_vmw_rect *rects; |
| unsigned rects_size; |
| int ret; |
| |
| ret = ttm_read_lock(&vmaster->lock, true); |
| if (unlikely(ret != 0)) |
| return ret; |
| |
| if (!arg->num_outputs) { |
| struct drm_vmw_rect def_rect = {0, 0, 800, 600}; |
| vmw_kms_ldu_update_layout(dev_priv, 1, &def_rect); |
| goto out_unlock; |
| } |
| |
| rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect); |
| rects = kzalloc(rects_size, GFP_KERNEL); |
| if (unlikely(!rects)) { |
| ret = -ENOMEM; |
| goto out_unlock; |
| } |
| |
| 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; |
| } |
| |
| vmw_kms_ldu_update_layout(dev_priv, arg->num_outputs, rects); |
| |
| out_free: |
| kfree(rects); |
| out_unlock: |
| ttm_read_unlock(&vmaster->lock); |
| return ret; |
| } |
| |
| 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->vram_size; |
| } |
| |
| u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc) |
| { |
| return 0; |
| } |