diff options
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_kms.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 2060 |
1 files changed, 2060 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c new file mode 100644 index 0000000..3e3c7ab --- /dev/null +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -0,0 +1,2060 @@ +/************************************************************************** + * + * 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) + + +struct vmw_clip_rect { + int x1, x2, y1, y2; +}; + +/** + * Clip @num_rects number of @rects against @clip storing the + * results in @out_rects and the number of passed rects in @out_num. + */ +void vmw_clip_cliprects(struct drm_clip_rect *rects, + int num_rects, + struct vmw_clip_rect clip, + SVGASignedRect *out_rects, + int *out_num) +{ + int i, k; + + for (i = 0, k = 0; i < num_rects; i++) { + int x1 = max_t(int, clip.x1, rects[i].x1); + int y1 = max_t(int, clip.y1, rects[i].y1); + int x2 = min_t(int, clip.x2, rects[i].x2); + int y2 = min_t(int, clip.y2, rects[i].y2); + + if (x1 >= x2) + continue; + if (y1 >= y2) + continue; + + out_rects[k].left = x1; + out_rects[k].top = y1; + out_rects[k].right = x2; + out_rects[k].bottom = y2; + k++; + } + + *out_num = k; +} + +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; +} + +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, 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); + 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; +} + + +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; + + /* + * FIXME: Unclear whether there's any global state touched by the + * cursor_set function, especially vmw_cursor_update_position looks + * suspicious. For now take the easy route and reacquire all locks. We + * can do this since the caller in the drm core doesn't check anything + * which is protected by any looks. + */ + mutex_unlock(&crtc->mutex); + drm_modeset_lock_all(dev_priv->dev); + + /* A lot of the code assumes this */ + if (handle && (width != 64 || height != 64)) { + ret = -EINVAL; + goto out; + } + + if (handle) { + ret = vmw_user_lookup_handle(dev_priv, tfile, + handle, &surface, &dmabuf); + if (ret) { + DRM_ERROR("failed to find surface or dmabuf: %i\n", ret); + ret = -EINVAL; + goto out; + } + } + + /* need to do this before taking down old image */ + if (surface && !surface->snooper.image) { + DRM_ERROR("surface not suitable for cursor\n"); + vmw_surface_unreference(&surface); + ret = -EINVAL; + goto out; + } + + /* 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) { + /* vmw_user_surface_lookup takes one reference */ + du->cursor_dmabuf = dmabuf; + + ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height, + du->hotspot_x, du->hotspot_y); + } else { + vmw_cursor_update_position(dev_priv, false, 0, 0); + ret = 0; + goto out; + } + + vmw_cursor_update_position(dev_priv, true, + du->cursor_x + du->hotspot_x, + du->cursor_y + du->hotspot_y); + + ret = 0; +out: + drm_modeset_unlock_all(dev_priv->dev); + mutex_lock(&crtc->mutex); + + return ret; +} + +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; + + /* + * FIXME: Unclear whether there's any global state touched by the + * cursor_set function, especially vmw_cursor_update_position looks + * suspicious. For now take the easy route and reacquire all locks. We + * can do this since the caller in the drm core doesn't check anything + * which is protected by any looks. + */ + mutex_unlock(&crtc->mutex); + drm_modeset_lock_all(dev_priv->dev); + + vmw_cursor_update_position(dev_priv, shown, + du->cursor_x + du->hotspot_x, + du->cursor_y + du->hotspot_y); + + drm_modeset_unlock_all(dev_priv->dev); + mutex_lock(&crtc->mutex); + + 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 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, 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); + + 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++; + + /* 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 + */ + +/* + * 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 list_head head; + struct drm_master *master; +}; + +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); + + drm_master_put(&vfbs->master); + drm_framebuffer_cleanup(framebuffer); + vmw_surface_unreference(&vfbs->surface); + ttm_base_object_unref(&vfbs->base.user_obj); + + kfree(vfbs); +} + +static int do_surface_dirty_sou(struct vmw_private *dev_priv, + struct drm_file *file_priv, + struct vmw_framebuffer *framebuffer, + unsigned flags, unsigned color, + struct drm_clip_rect *clips, + unsigned num_clips, int inc, + struct vmw_fence_obj **out_fence) +{ + struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS]; + struct drm_clip_rect *clips_ptr; + struct drm_clip_rect *tmp; + struct drm_crtc *crtc; + size_t fifo_size; + int i, num_units; + int ret = 0; /* silence warning */ + int left, right, top, bottom; + + struct { + SVGA3dCmdHeader header; + SVGA3dCmdBlitSurfaceToScreen body; + } *cmd; + SVGASignedRect *blits; + + num_units = 0; + list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, + head) { + if (crtc->fb != &framebuffer->base) + continue; + units[num_units++] = vmw_crtc_to_du(crtc); + } + + BUG_ON(!clips || !num_clips); + + tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL); + if (unlikely(tmp == NULL)) { + DRM_ERROR("Temporary cliprect memory alloc failed.\n"); + return -ENOMEM; + } + + fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips; + cmd = kzalloc(fifo_size, GFP_KERNEL); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Temporary fifo memory alloc failed.\n"); + ret = -ENOMEM; + goto out_free_tmp; + } + + /* setup blits pointer */ + blits = (SVGASignedRect *)&cmd[1]; + + /* initial clip region */ + left = clips->x1; + right = clips->x2; + top = clips->y1; + bottom = clips->y2; + + /* skip the first clip rect */ + for (i = 1, clips_ptr = clips + inc; + i < num_clips; i++, clips_ptr += inc) { + left = min_t(int, left, (int)clips_ptr->x1); + right = max_t(int, right, (int)clips_ptr->x2); + top = min_t(int, top, (int)clips_ptr->y1); + bottom = max_t(int, bottom, (int)clips_ptr->y2); + } + + /* only need to do this once */ + cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN); + cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header)); + + cmd->body.srcRect.left = left; + cmd->body.srcRect.right = right; + cmd->body.srcRect.top = top; + cmd->body.srcRect.bottom = bottom; + + clips_ptr = clips; + for (i = 0; i < num_clips; i++, clips_ptr += inc) { + tmp[i].x1 = clips_ptr->x1 - left; + tmp[i].x2 = clips_ptr->x2 - left; + tmp[i].y1 = clips_ptr->y1 - top; + tmp[i].y2 = clips_ptr->y2 - top; + } + + /* do per unit writing, reuse fifo for each */ + for (i = 0; i < num_units; i++) { + struct vmw_display_unit *unit = units[i]; + struct vmw_clip_rect clip; + int num; + + clip.x1 = left - unit->crtc.x; + clip.y1 = top - unit->crtc.y; + clip.x2 = right - unit->crtc.x; + clip.y2 = bottom - unit->crtc.y; + + /* skip any crtcs that misses the clip region */ + if (clip.x1 >= unit->crtc.mode.hdisplay || + clip.y1 >= unit->crtc.mode.vdisplay || + clip.x2 <= 0 || clip.y2 <= 0) + continue; + + /* + * In order for the clip rects to be correctly scaled + * the src and dest rects needs to be the same size. + */ + cmd->body.destRect.left = clip.x1; + cmd->body.destRect.right = clip.x2; + cmd->body.destRect.top = clip.y1; + cmd->body.destRect.bottom = clip.y2; + + /* create a clip rect of the crtc in dest coords */ + clip.x2 = unit->crtc.mode.hdisplay - clip.x1; + clip.y2 = unit->crtc.mode.vdisplay - clip.y1; + clip.x1 = 0 - clip.x1; + clip.y1 = 0 - clip.y1; + + /* need to reset sid as it is changed by execbuf */ + cmd->body.srcImage.sid = cpu_to_le32(framebuffer->user_handle); + cmd->body.destScreenId = unit->unit; + + /* clip and write blits to cmd stream */ + vmw_clip_cliprects(tmp, num_clips, clip, blits, &num); + + /* if no cliprects hit skip this */ + if (num == 0) + continue; + + /* only return the last fence */ + if (out_fence && *out_fence) + vmw_fence_obj_unreference(out_fence); + + /* recalculate package length */ + fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num; + cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header)); + ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, + fifo_size, 0, NULL, out_fence); + + if (unlikely(ret != 0)) + break; + } + + + kfree(cmd); +out_free_tmp: + kfree(tmp); + + return ret; +} + +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 drm_clip_rect norect; + int ret, inc = 1; + + if (unlikely(vfbs->master != file_priv->master)) + return -EINVAL; + + /* Require ScreenObject support for 3D */ + if (!dev_priv->sou_priv) + return -EINVAL; + + 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; + inc = 2; /* skip source rects */ + } + + ret = do_surface_dirty_sou(dev_priv, file_priv, &vfbs->base, + flags, color, + clips, num_clips, inc, NULL); + + 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, +}; + +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; + + /* 3D is only supported on HWv8 hosts which supports screen objects */ + if (!dev_priv->sou_priv) + 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->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; + } + + if (!vmw_surface_reference(surface)) { + DRM_ERROR("failed to reference surface %p\n", surface); + ret = -EINVAL; + goto out_err2; + } + + /* XXX get the first 3 from the surface info */ + vfbs->base.base.bits_per_pixel = mode_cmd->bpp; + vfbs->base.base.pitches[0] = 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->surface = surface; + vfbs->base.user_handle = mode_cmd->handle; + vfbs->master = drm_master_get(file_priv->master); + + mutex_lock(&vmaster->fb_surf_mutex); + list_add_tail(&vfbs->head, &vmaster->fb_surf); + mutex_unlock(&vmaster->fb_surf_mutex); + + *out = &vfbs->base; + + ret = drm_framebuffer_init(dev, &vfbs->base.base, + &vmw_framebuffer_surface_funcs); + if (ret) + goto out_err3; + + return 0; + +out_err3: + vmw_surface_unreference(&surface); +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); + ttm_base_object_unref(&vfbd->base.user_obj); + + kfree(vfbd); +} + +static int do_dmabuf_dirty_ldu(struct vmw_private *dev_priv, + struct vmw_framebuffer *framebuffer, + unsigned flags, unsigned color, + struct drm_clip_rect *clips, + unsigned num_clips, int increment) +{ + size_t fifo_size; + int i; + + struct { + uint32_t header; + SVGAFifoCmdUpdate body; + } *cmd; + + fifo_size = sizeof(*cmd) * num_clips; + cmd = vmw_fifo_reserve(dev_priv, fifo_size); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Fifo reserve failed.\n"); + return -ENOMEM; + } + + memset(cmd, 0, fifo_size); + for (i = 0; i < num_clips; i++, clips += increment) { + cmd[i].header = 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, fifo_size); + return 0; +} + +static int do_dmabuf_define_gmrfb(struct drm_file *file_priv, + struct vmw_private *dev_priv, + struct vmw_framebuffer *framebuffer) +{ + int depth = framebuffer->base.depth; + size_t fifo_size; + int ret; + + struct { + uint32_t header; + SVGAFifoCmdDefineGMRFB body; + } *cmd; + + /* Emulate RGBA support, contrary to svga_reg.h this is not + * supported by hosts. This is only a problem if we are reading + * this value later and expecting what we uploaded back. + */ + if (depth == 32) + depth = 24; + + fifo_size = sizeof(*cmd); + cmd = kmalloc(fifo_size, GFP_KERNEL); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Failed to allocate temporary cmd buffer.\n"); + return -ENOMEM; + } + + memset(cmd, 0, fifo_size); + cmd->header = SVGA_CMD_DEFINE_GMRFB; + cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel; + cmd->body.format.colorDepth = depth; + cmd->body.format.reserved = 0; + cmd->body.bytesPerLine = framebuffer->base.pitches[0]; + cmd->body.ptr.gmrId = framebuffer->user_handle; + cmd->body.ptr.offset = 0; + + ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, + fifo_size, 0, NULL, NULL); + + kfree(cmd); + + return ret; +} + +static int do_dmabuf_dirty_sou(struct drm_file *file_priv, + struct vmw_private *dev_priv, + struct vmw_framebuffer *framebuffer, + unsigned flags, unsigned color, + struct drm_clip_rect *clips, + unsigned num_clips, int increment, + struct vmw_fence_obj **out_fence) +{ + struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS]; + struct drm_clip_rect *clips_ptr; + int i, k, num_units, ret; + struct drm_crtc *crtc; + size_t fifo_size; + + struct { + uint32_t header; + SVGAFifoCmdBlitGMRFBToScreen body; + } *blits; + + ret = do_dmabuf_define_gmrfb(file_priv, dev_priv, framebuffer); + if (unlikely(ret != 0)) + return ret; /* define_gmrfb prints warnings */ + + fifo_size = sizeof(*blits) * num_clips; + blits = kmalloc(fifo_size, GFP_KERNEL); + if (unlikely(blits == NULL)) { + DRM_ERROR("Failed to allocate temporary cmd buffer.\n"); + return -ENOMEM; + } + + num_units = 0; + list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) { + if (crtc->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]; + int hit_num = 0; + + clips_ptr = clips; + for (i = 0; i < num_clips; i++, clips_ptr += increment) { + int clip_x1 = clips_ptr->x1 - unit->crtc.x; + int clip_y1 = clips_ptr->y1 - unit->crtc.y; + int clip_x2 = clips_ptr->x2 - unit->crtc.x; + int clip_y2 = clips_ptr->y2 - unit->crtc.y; + int move_x, move_y; + + /* skip any crtcs that misses the clip region */ + if (clip_x1 >= unit->crtc.mode.hdisplay || + clip_y1 >= unit->crtc.mode.vdisplay || + clip_x2 <= 0 || clip_y2 <= 0) + continue; + + /* clip size to crtc size */ + clip_x2 = min_t(int, clip_x2, unit->crtc.mode.hdisplay); + clip_y2 = min_t(int, clip_y2, unit->crtc.mode.vdisplay); + + /* translate both src and dest to bring clip into screen */ + move_x = min_t(int, clip_x1, 0); + move_y = min_t(int, clip_y1, 0); + + /* actual translate done here */ + blits[hit_num].header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN; + blits[hit_num].body.destScreenId = unit->unit; + blits[hit_num].body.srcOrigin.x = clips_ptr->x1 - move_x; + blits[hit_num].body.srcOrigin.y = clips_ptr->y1 - move_y; + blits[hit_num].body.destRect.left = clip_x1 - move_x; + blits[hit_num].body.destRect.top = clip_y1 - move_y; + blits[hit_num].body.destRect.right = clip_x2; + blits[hit_num].body.destRect.bottom = clip_y2; + hit_num++; + } + + /* no clips hit the crtc */ + if (hit_num == 0) + continue; + + /* only return the last fence */ + if (out_fence && *out_fence) + vmw_fence_obj_unreference(out_fence); + + fifo_size = sizeof(*blits) * hit_num; + ret = vmw_execbuf_process(file_priv, dev_priv, NULL, blits, + fifo_size, 0, NULL, out_fence); + + if (unlikely(ret != 0)) + break; + } + + kfree(blits); + + return ret; +} + +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 vmw_framebuffer_dmabuf *vfbd = + vmw_framebuffer_to_vfbd(framebuffer); + struct drm_clip_rect norect; + int ret, 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; + } + + if (dev_priv->ldu_priv) { + ret = do_dmabuf_dirty_ldu(dev_priv, &vfbd->base, + flags, color, + clips, num_clips, increment); + } else { + ret = do_dmabuf_dirty_sou(file_priv, dev_priv, &vfbd->base, + flags, color, + clips, num_clips, increment, NULL); + } + + ttm_read_unlock(&vmaster->lock); + return ret; +} + +static 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_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; + + /* This code should not be used with screen objects */ + BUG_ON(dev_priv->sou_priv); + + vmw_overlay_pause_all(dev_priv); + + ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer, true, false); + + 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_unpin(dev_priv, vfbd->buffer, false); +} + +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; + } + + /* Limited framebuffer color depth support for screen objects */ + if (dev_priv->sou_priv) { + switch (mode_cmd->depth) { + case 32: + case 24: + /* Only support 32 bpp for 32 and 24 depth fbs */ + if (mode_cmd->bpp == 32) + break; + + DRM_ERROR("Invalid color depth/bbp: %d %d\n", + mode_cmd->depth, mode_cmd->bpp); + return -EINVAL; + case 16: + case 15: + /* Only support 16 bpp for 16 and 15 depth fbs */ + if (mode_cmd->bpp == 16) + break; + + DRM_ERROR("Invalid color depth/bbp: %d %d\n", + mode_cmd->depth, mode_cmd->bpp); + return -EINVAL; + default: + DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth); + return -EINVAL; + } + } + + vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL); + if (!vfbd) { + ret = -ENOMEM; + goto out_err1; + } + + if (!vmw_dmabuf_reference(dmabuf)) { + DRM_ERROR("failed to reference dmabuf %p\n", dmabuf); + ret = -EINVAL; + goto out_err2; + } + + vfbd->base.base.bits_per_pixel = mode_cmd->bpp; + vfbd->base.base.pitches[0] = mode_cmd->pitch; + vfbd->base.base.depth = mode_cmd->depth; + vfbd->base.base.width = mode_cmd->width; + vfbd->base.base.height = mode_cmd->height; + if (!dev_priv->sou_priv) { + vfbd->base.pin = vmw_framebuffer_dmabuf_pin; + vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin; + } + vfbd->base.dmabuf = true; + vfbd->buffer = dmabuf; + vfbd->base.user_handle = mode_cmd->handle; + *out = &vfbd->base; + + ret = drm_framebuffer_init(dev, &vfbd->base.base, + &vmw_framebuffer_dmabuf_funcs); + if (ret) + goto out_err3; + + return 0; + +out_err3: + vmw_dmabuf_unreference(&dmabuf); +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_cmd2 *mode_cmd2) +{ + 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; + struct drm_mode_fb_cmd mode_cmd; + int ret; + + mode_cmd.width = mode_cmd2->width; + mode_cmd.height = mode_cmd2->height; + mode_cmd.pitch = mode_cmd2->pitches[0]; + mode_cmd.handle = mode_cmd2->handles[0]; + drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth, + &mode_cmd.bpp); + + /** + * 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.pitch, + mode_cmd.height)) { + DRM_ERROR("VRAM size is too small for requested mode.\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.handle); + 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.handle, + &surface, &bo); + if (ret) + goto err_out; + + /* Create the new framebuffer depending one what we got back */ + if (bo) + ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb, + &mode_cmd); + else if (surface) + ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv, + surface, &vfb, &mode_cmd); + else + BUG(); + +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; +} + +static const struct drm_mode_config_funcs vmw_kms_funcs = { + .fb_create = vmw_kms_fb_create, +}; + +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) +{ + struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS]; + struct drm_clip_rect *tmp; + struct drm_crtc *crtc; + size_t fifo_size; + int i, k, num_units; + int ret = 0; /* silence warning */ + int left, right, top, bottom; + + struct { + SVGA3dCmdHeader header; + SVGA3dCmdBlitSurfaceToScreen body; + } *cmd; + SVGASignedRect *blits; + + num_units = 0; + list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) { + if (crtc->fb != &vfb->base) + continue; + units[num_units++] = vmw_crtc_to_du(crtc); + } + + BUG_ON(surface == NULL); + BUG_ON(!clips || !num_clips); + + tmp = kzalloc(sizeof(*tmp) * num_clips, GFP_KERNEL); + if (unlikely(tmp == NULL)) { + DRM_ERROR("Temporary cliprect memory alloc failed.\n"); + return -ENOMEM; + } + + fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num_clips; + cmd = kmalloc(fifo_size, GFP_KERNEL); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Failed to allocate temporary fifo memory.\n"); + ret = -ENOMEM; + goto out_free_tmp; + } + + left = clips->x; + right = clips->x + clips->w; + top = clips->y; + bottom = clips->y + clips->h; + + for (i = 1; i < num_clips; i++) { + left = min_t(int, left, (int)clips[i].x); + right = max_t(int, right, (int)clips[i].x + clips[i].w); + top = min_t(int, top, (int)clips[i].y); + bottom = max_t(int, bottom, (int)clips[i].y + clips[i].h); + } + + /* only need to do this once */ + memset(cmd, 0, fifo_size); + cmd->header.id = cpu_to_le32(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN); + + blits = (SVGASignedRect *)&cmd[1]; + + cmd->body.srcRect.left = left; + cmd->body.srcRect.right = right; + cmd->body.srcRect.top = top; + cmd->body.srcRect.bottom = bottom; + + for (i = 0; i < num_clips; i++) { + tmp[i].x1 = clips[i].x - left; + tmp[i].x2 = clips[i].x + clips[i].w - left; + tmp[i].y1 = clips[i].y - top; + tmp[i].y2 = clips[i].y + clips[i].h - top; + } + + for (k = 0; k < num_units; k++) { + struct vmw_display_unit *unit = units[k]; + struct vmw_clip_rect clip; + int num; + + clip.x1 = left + destX - unit->crtc.x; + clip.y1 = top + destY - unit->crtc.y; + clip.x2 = right + destX - unit->crtc.x; + clip.y2 = bottom + destY - unit->crtc.y; + + /* skip any crtcs that misses the clip region */ + if (clip.x1 >= unit->crtc.mode.hdisplay || + clip.y1 >= unit->crtc.mode.vdisplay || + clip.x2 <= 0 || clip.y2 <= 0) + continue; + + /* + * In order for the clip rects to be correctly scaled + * the src and dest rects needs to be the same size. + */ + cmd->body.destRect.left = clip.x1; + cmd->body.destRect.right = clip.x2; + cmd->body.destRect.top = clip.y1; + cmd->body.destRect.bottom = clip.y2; + + /* create a clip rect of the crtc in dest coords */ + clip.x2 = unit->crtc.mode.hdisplay - clip.x1; + clip.y2 = unit->crtc.mode.vdisplay - clip.y1; + clip.x1 = 0 - clip.x1; + clip.y1 = 0 - clip.y1; + + /* need to reset sid as it is changed by execbuf */ + cmd->body.srcImage.sid = sid; + cmd->body.destScreenId = unit->unit; + + /* clip and write blits to cmd stream */ + vmw_clip_cliprects(tmp, num_clips, clip, blits, &num); + + /* if no cliprects hit skip this */ + if (num == 0) + continue; + + /* recalculate package length */ + fifo_size = sizeof(*cmd) + sizeof(SVGASignedRect) * num; + cmd->header.size = cpu_to_le32(fifo_size - sizeof(cmd->header)); + ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, + fifo_size, 0, NULL, NULL); + + if (unlikely(ret != 0)) + break; + } + + kfree(cmd); +out_free_tmp: + kfree(tmp); + + return ret; +} + +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 *clips, + uint32_t num_clips) +{ + struct vmw_framebuffer_dmabuf *vfbd = + vmw_framebuffer_to_vfbd(&vfb->base); + struct vmw_dma_buffer *dmabuf = vfbd->buffer; + struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS]; + struct drm_crtc *crtc; + size_t fifo_size; + int i, k, ret, num_units, blits_pos; + + struct { + uint32_t header; + SVGAFifoCmdDefineGMRFB body; + } *cmd; + struct { + uint32_t header; + SVGAFifoCmdBlitScreenToGMRFB body; + } *blits; + + num_units = 0; + list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list, head) { + if (crtc->fb != &vfb->base) + continue; + units[num_units++] = vmw_crtc_to_du(crtc); + } + + BUG_ON(dmabuf == NULL); + BUG_ON(!clips || !num_clips); + + /* take a safe guess at fifo size */ + fifo_size = sizeof(*cmd) + sizeof(*blits) * num_clips * num_units; + cmd = kmalloc(fifo_size, GFP_KERNEL); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Failed to allocate temporary fifo memory.\n"); + return -ENOMEM; + } + + memset(cmd, 0, fifo_size); + cmd->header = SVGA_CMD_DEFINE_GMRFB; + cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel; + cmd->body.format.colorDepth = vfb->base.depth; + cmd->body.format.reserved = 0; + cmd->body.bytesPerLine = vfb->base.pitches[0]; + cmd->body.ptr.gmrId = vfb->user_handle; + cmd->body.ptr.offset = 0; + + blits = (void *)&cmd[1]; + blits_pos = 0; + for (i = 0; i < num_units; i++) { + struct drm_vmw_rect *c = clips; + for (k = 0; k < num_clips; k++, c++) { + /* transform clip coords to crtc origin based coords */ + int clip_x1 = c->x - units[i]->crtc.x; + int clip_x2 = c->x - units[i]->crtc.x + c->w; + int clip_y1 = c->y - units[i]->crtc.y; + int clip_y2 = c->y - units[i]->crtc.y + c->h; + int dest_x = c->x; + int dest_y = c->y; + + /* compensate for clipping, we negate + * a negative number and add that. + */ + if (clip_x1 < 0) + dest_x += -clip_x1; + if (clip_y1 < 0) + dest_y += -clip_y1; + + /* clip */ + clip_x1 = max(clip_x1, 0); + clip_y1 = max(clip_y1, 0); + clip_x2 = min(clip_x2, units[i]->crtc.mode.hdisplay); + clip_y2 = min(clip_y2, units[i]->crtc.mode.vdisplay); + + /* and cull any rects that misses the crtc */ + if (clip_x1 >= units[i]->crtc.mode.hdisplay || + clip_y1 >= units[i]->crtc.mode.vdisplay || + clip_x2 <= 0 || clip_y2 <= 0) + continue; + + blits[blits_pos].header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB; + blits[blits_pos].body.srcScreenId = units[i]->unit; + blits[blits_pos].body.destOrigin.x = dest_x; + blits[blits_pos].body.destOrigin.y = dest_y; + + blits[blits_pos].body.srcRect.left = clip_x1; + blits[blits_pos].body.srcRect.top = clip_y1; + blits[blits_pos].body.srcRect.right = clip_x2; + blits[blits_pos].body.srcRect.bottom = clip_y2; + blits_pos++; + } + } + /* reset size here and use calculated exact size from loops */ + fifo_size = sizeof(*cmd) + sizeof(*blits) * blits_pos; + + ret = vmw_execbuf_process(file_priv, dev_priv, NULL, cmd, fifo_size, + 0, user_fence_rep, NULL); + + kfree(cmd); + + return ret; +} + +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_screen_object_display(dev_priv); + if (ret) /* Fallback */ + (void)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); + if (dev_priv->sou_priv) + vmw_kms_close_screen_object_display(dev_priv); + else + 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; +} + +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; +} + + +/** + * Function called by DRM code called with vbl_lock held. + */ +u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc) +{ + return 0; +} + +/** + * Function called by DRM code called with vbl_lock held. + */ +int vmw_enable_vblank(struct drm_device *dev, int crtc) +{ + return -ENOSYS; +} + +/** + * Function called by DRM code called with vbl_lock held. + */ +void vmw_disable_vblank(struct drm_device *dev, int crtc) +{ +} + + +/* + * Small shared kms functions. + */ + +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; + } else { + du->pref_width = 800; + du->pref_height = 600; + du->pref_active = false; + } + con->status = vmw_du_connector_detect(con, true); + } + + mutex_unlock(&dev->mode_config.mutex); + + return 0; +} + +int vmw_du_page_flip(struct drm_crtc *crtc, + struct drm_framebuffer *fb, + struct drm_pending_vblank_event *event) +{ + struct vmw_private *dev_priv = vmw_priv(crtc->dev); + struct drm_framebuffer *old_fb = crtc->fb; + struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb); + struct drm_file *file_priv ; + struct vmw_fence_obj *fence = NULL; + struct drm_clip_rect clips; + int ret; + + if (event == NULL) + return -EINVAL; + + /* require ScreenObject support for page flipping */ + if (!dev_priv->sou_priv) + return -ENOSYS; + + file_priv = event->base.file_priv; + if (!vmw_kms_screen_object_flippable(dev_priv, crtc)) + return -EINVAL; + + crtc->fb = fb; + + /* do a full screen dirty update */ + clips.x1 = clips.y1 = 0; + clips.x2 = fb->width; + clips.y2 = fb->height; + + if (vfb->dmabuf) + ret = do_dmabuf_dirty_sou(file_priv, dev_priv, vfb, + 0, 0, &clips, 1, 1, &fence); + else + ret = do_surface_dirty_sou(dev_priv, file_priv, vfb, + 0, 0, &clips, 1, 1, &fence); + + + if (ret != 0) + goto out_no_fence; + if (!fence) { + ret = -EINVAL; + goto out_no_fence; + } + + ret = vmw_event_fence_action_queue(file_priv, fence, + &event->base, + &event->event.tv_sec, + &event->event.tv_usec, + true); + + /* + * No need to hold on to this now. The only cleanup + * we need to do if we fail is unref the fence. + */ + vmw_fence_obj_unreference(&fence); + + if (vmw_crtc_to_du(crtc)->is_implicit) + vmw_kms_screen_object_update_implicit_fb(dev_priv, crtc); + + return ret; + +out_no_fence: + crtc->fb = old_fb; + return ret; +} + + +void vmw_du_crtc_save(struct drm_crtc *crtc) +{ +} + +void vmw_du_crtc_restore(struct drm_crtc *crtc) +{ +} + +void vmw_du_crtc_gamma_set(struct drm_crtc *crtc, + u16 *r, u16 *g, u16 *b, + uint32_t start, uint32_t size) +{ + 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); + } +} + +void vmw_du_connector_dpms(struct drm_connector *connector, int mode) +{ +} + +void vmw_du_connector_save(struct drm_connector *connector) +{ +} + +void vmw_du_connector_restore(struct drm_connector *connector) +{ +} + +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); + + mutex_lock(&dev_priv->hw_mutex); + num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS); + mutex_unlock(&dev_priv->hw_mutex); + + 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. + */ +static 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; + + /* 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 * 2, + 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 * 2, + 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); + } + + /* Move the prefered mode first, help apps pick the right mode. */ + if (du->pref_mode) + list_move(&du->pref_mode->head, &connector->probed_modes); + + drm_mode_connector_list_update(connector); + + return 1; +} + +int vmw_du_connector_set_property(struct drm_connector *connector, + struct drm_property *property, + uint64_t val) +{ + 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; + int i; + struct drm_mode_config *mode_config = &dev->mode_config; + + 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_du_update_layout(dev_priv, 1, &def_rect); + goto out_unlock; + } + + 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)) { + 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; + } + + 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; + } + } + + vmw_du_update_layout(dev_priv, arg->num_outputs, rects); + +out_free: + kfree(rects); +out_unlock: + ttm_read_unlock(&vmaster->lock); + return ret; +} |