/****************************************************************************** * * COPYRIGHT © 2014-2015 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 "device_include/svga3d_surfacedefs.h" #include #define vmw_crtc_to_stdu(x) \ container_of(x, struct vmw_screen_target_display_unit, base.crtc) #define vmw_encoder_to_stdu(x) \ container_of(x, struct vmw_screen_target_display_unit, base.encoder) #define vmw_connector_to_stdu(x) \ container_of(x, struct vmw_screen_target_display_unit, base.connector) enum stdu_content_type { SAME_AS_DISPLAY = 0, SEPARATE_SURFACE, SEPARATE_DMA }; /** * struct vmw_stdu_dirty - closure structure for the update functions * * @base: The base type we derive from. Used by vmw_kms_helper_dirty(). * @transfer: Transfer direction for DMA command. * @left: Left side of bounding box. * @right: Right side of bounding box. * @top: Top side of bounding box. * @bottom: Bottom side of bounding box. * @buf: DMA buffer when DMA-ing between buffer and screen targets. * @sid: Surface ID when copying between surface and screen targets. */ struct vmw_stdu_dirty { struct vmw_kms_dirty base; SVGA3dTransferType transfer; s32 left, right, top, bottom; u32 pitch; union { struct vmw_dma_buffer *buf; u32 sid; }; }; /* * SVGA commands that are used by this code. Please see the device headers * for explanation. */ struct vmw_stdu_update { SVGA3dCmdHeader header; SVGA3dCmdUpdateGBScreenTarget body; }; struct vmw_stdu_dma { SVGA3dCmdHeader header; SVGA3dCmdSurfaceDMA body; }; struct vmw_stdu_surface_copy { SVGA3dCmdHeader header; SVGA3dCmdSurfaceCopy body; }; /** * struct vmw_screen_target_display_unit * * @base: VMW specific DU structure * @display_srf: surface to be displayed. The dimension of this will always * match the display mode. If the display mode matches * content_vfbs dimensions, then this is a pointer into the * corresponding field in content_vfbs. If not, then this * is a separate buffer to which content_vfbs will blit to. * @content_type: content_fb type * @defined: true if the current display unit has been initialized */ struct vmw_screen_target_display_unit { struct vmw_display_unit base; struct vmw_surface *display_srf; enum stdu_content_type content_fb_type; bool defined; }; static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu); /****************************************************************************** * Screen Target Display Unit helper Functions *****************************************************************************/ /** * vmw_stdu_unpin_display - unpins the resource associated with display surface * * @stdu: contains the display surface * * If the display surface was privatedly allocated by * vmw_surface_gb_priv_define() and not registered as a framebuffer, then it * won't be automatically cleaned up when all the framebuffers are freed. As * such, we have to explicitly call vmw_resource_unreference() to get it freed. */ static void vmw_stdu_unpin_display(struct vmw_screen_target_display_unit *stdu) { if (stdu->display_srf) { struct vmw_resource *res = &stdu->display_srf->res; vmw_resource_unpin(res); vmw_surface_unreference(&stdu->display_srf); } } /****************************************************************************** * Screen Target Display Unit CRTC Functions *****************************************************************************/ /** * vmw_stdu_crtc_destroy - cleans up the STDU * * @crtc: used to get a reference to the containing STDU */ static void vmw_stdu_crtc_destroy(struct drm_crtc *crtc) { vmw_stdu_destroy(vmw_crtc_to_stdu(crtc)); } /** * vmw_stdu_define_st - Defines a Screen Target * * @dev_priv: VMW DRM device * @stdu: display unit to create a Screen Target for * @mode: The mode to set. * @crtc_x: X coordinate of screen target relative to framebuffer origin. * @crtc_y: Y coordinate of screen target relative to framebuffer origin. * * Creates a STDU that we can used later. This function is called whenever the * framebuffer size changes. * * RETURNs: * 0 on success, error code on failure */ static int vmw_stdu_define_st(struct vmw_private *dev_priv, struct vmw_screen_target_display_unit *stdu, struct drm_display_mode *mode, int crtc_x, int crtc_y) { struct { SVGA3dCmdHeader header; SVGA3dCmdDefineGBScreenTarget body; } *cmd; cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); if (unlikely(cmd == NULL)) { DRM_ERROR("Out of FIFO space defining Screen Target\n"); return -ENOMEM; } cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SCREENTARGET; cmd->header.size = sizeof(cmd->body); cmd->body.stid = stdu->base.unit; cmd->body.width = mode->hdisplay; cmd->body.height = mode->vdisplay; cmd->body.flags = (0 == cmd->body.stid) ? SVGA_STFLAG_PRIMARY : 0; cmd->body.dpi = 0; if (stdu->base.is_implicit) { cmd->body.xRoot = crtc_x; cmd->body.yRoot = crtc_y; } else { cmd->body.xRoot = stdu->base.gui_x; cmd->body.yRoot = stdu->base.gui_y; } stdu->base.set_gui_x = cmd->body.xRoot; stdu->base.set_gui_y = cmd->body.yRoot; vmw_fifo_commit(dev_priv, sizeof(*cmd)); stdu->defined = true; return 0; } /** * vmw_stdu_bind_st - Binds a surface to a Screen Target * * @dev_priv: VMW DRM device * @stdu: display unit affected * @res: Buffer to bind to the screen target. Set to NULL to blank screen. * * Binding a surface to a Screen Target the same as flipping */ static int vmw_stdu_bind_st(struct vmw_private *dev_priv, struct vmw_screen_target_display_unit *stdu, struct vmw_resource *res) { SVGA3dSurfaceImageId image; struct { SVGA3dCmdHeader header; SVGA3dCmdBindGBScreenTarget body; } *cmd; if (!stdu->defined) { DRM_ERROR("No screen target defined\n"); return -EINVAL; } /* Set up image using information in vfb */ memset(&image, 0, sizeof(image)); image.sid = res ? res->id : SVGA3D_INVALID_ID; cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); if (unlikely(cmd == NULL)) { DRM_ERROR("Out of FIFO space binding a screen target\n"); return -ENOMEM; } cmd->header.id = SVGA_3D_CMD_BIND_GB_SCREENTARGET; cmd->header.size = sizeof(cmd->body); cmd->body.stid = stdu->base.unit; cmd->body.image = image; vmw_fifo_commit(dev_priv, sizeof(*cmd)); return 0; } /** * vmw_stdu_populate_update - populate an UPDATE_GB_SCREENTARGET command with a * bounding box. * * @cmd: Pointer to command stream. * @unit: Screen target unit. * @left: Left side of bounding box. * @right: Right side of bounding box. * @top: Top side of bounding box. * @bottom: Bottom side of bounding box. */ static void vmw_stdu_populate_update(void *cmd, int unit, s32 left, s32 right, s32 top, s32 bottom) { struct vmw_stdu_update *update = cmd; update->header.id = SVGA_3D_CMD_UPDATE_GB_SCREENTARGET; update->header.size = sizeof(update->body); update->body.stid = unit; update->body.rect.x = left; update->body.rect.y = top; update->body.rect.w = right - left; update->body.rect.h = bottom - top; } /** * vmw_stdu_update_st - Full update of a Screen Target * * @dev_priv: VMW DRM device * @stdu: display unit affected * * This function needs to be called whenever the content of a screen * target has changed completely. Typically as a result of a backing * surface change. * * RETURNS: * 0 on success, error code on failure */ static int vmw_stdu_update_st(struct vmw_private *dev_priv, struct vmw_screen_target_display_unit *stdu) { struct vmw_stdu_update *cmd; struct drm_crtc *crtc = &stdu->base.crtc; if (!stdu->defined) { DRM_ERROR("No screen target defined"); return -EINVAL; } cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); if (unlikely(cmd == NULL)) { DRM_ERROR("Out of FIFO space updating a Screen Target\n"); return -ENOMEM; } vmw_stdu_populate_update(cmd, stdu->base.unit, 0, crtc->mode.hdisplay, 0, crtc->mode.vdisplay); vmw_fifo_commit(dev_priv, sizeof(*cmd)); return 0; } /** * vmw_stdu_destroy_st - Destroy a Screen Target * * @dev_priv: VMW DRM device * @stdu: display unit to destroy */ static int vmw_stdu_destroy_st(struct vmw_private *dev_priv, struct vmw_screen_target_display_unit *stdu) { int ret; struct { SVGA3dCmdHeader header; SVGA3dCmdDestroyGBScreenTarget body; } *cmd; /* Nothing to do if not successfully defined */ if (unlikely(!stdu->defined)) return 0; cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); if (unlikely(cmd == NULL)) { DRM_ERROR("Out of FIFO space, screen target not destroyed\n"); return -ENOMEM; } cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SCREENTARGET; cmd->header.size = sizeof(cmd->body); cmd->body.stid = stdu->base.unit; vmw_fifo_commit(dev_priv, sizeof(*cmd)); /* Force sync */ ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ); if (unlikely(ret != 0)) DRM_ERROR("Failed to sync with HW"); stdu->defined = false; return ret; } /** * vmw_stdu_bind_fb - Bind an fb to a defined screen target * * @dev_priv: Pointer to a device private struct. * @crtc: The crtc holding the screen target. * @mode: The mode currently used by the screen target. Must be non-NULL. * @new_fb: The new framebuffer to bind. Must be non-NULL. * * RETURNS: * 0 on success, error code on failure. */ static int vmw_stdu_bind_fb(struct vmw_private *dev_priv, struct drm_crtc *crtc, struct drm_display_mode *mode, struct drm_framebuffer *new_fb) { struct vmw_screen_target_display_unit *stdu = vmw_crtc_to_stdu(crtc); struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb); struct vmw_surface *new_display_srf = NULL; enum stdu_content_type new_content_type; struct vmw_framebuffer_surface *new_vfbs; int ret; WARN_ON_ONCE(!stdu->defined); new_vfbs = (vfb->dmabuf) ? NULL : vmw_framebuffer_to_vfbs(new_fb); if (new_vfbs && new_vfbs->surface->base_size.width == mode->hdisplay && new_vfbs->surface->base_size.height == mode->vdisplay) new_content_type = SAME_AS_DISPLAY; else if (vfb->dmabuf) new_content_type = SEPARATE_DMA; else new_content_type = SEPARATE_SURFACE; if (new_content_type != SAME_AS_DISPLAY && !stdu->display_srf) { struct vmw_surface content_srf; struct drm_vmw_size display_base_size = {0}; display_base_size.width = mode->hdisplay; display_base_size.height = mode->vdisplay; display_base_size.depth = 1; /* * If content buffer is a DMA buf, then we have to construct * surface info */ if (new_content_type == SEPARATE_DMA) { switch (new_fb->bits_per_pixel) { case 32: content_srf.format = SVGA3D_X8R8G8B8; break; case 16: content_srf.format = SVGA3D_R5G6B5; break; case 8: content_srf.format = SVGA3D_P8; break; default: DRM_ERROR("Invalid format\n"); return -EINVAL; } content_srf.flags = 0; content_srf.mip_levels[0] = 1; content_srf.multisample_count = 0; } else { content_srf = *new_vfbs->surface; } ret = vmw_surface_gb_priv_define(crtc->dev, 0, /* because kernel visible only */ content_srf.flags, content_srf.format, true, /* a scanout buffer */ content_srf.mip_levels[0], content_srf.multisample_count, 0, display_base_size, &new_display_srf); if (unlikely(ret != 0)) { DRM_ERROR("Could not allocate screen target surface.\n"); return ret; } } else if (new_content_type == SAME_AS_DISPLAY) { new_display_srf = vmw_surface_reference(new_vfbs->surface); } if (new_display_srf) { /* Pin new surface before flipping */ ret = vmw_resource_pin(&new_display_srf->res, false); if (ret) goto out_srf_unref; ret = vmw_stdu_bind_st(dev_priv, stdu, &new_display_srf->res); if (ret) goto out_srf_unpin; /* Unpin and unreference old surface */ vmw_stdu_unpin_display(stdu); /* Transfer the reference */ stdu->display_srf = new_display_srf; new_display_srf = NULL; } crtc->primary->fb = new_fb; stdu->content_fb_type = new_content_type; return 0; out_srf_unpin: vmw_resource_unpin(&new_display_srf->res); out_srf_unref: vmw_surface_unreference(&new_display_srf); return ret; } /** * vmw_stdu_crtc_set_config - Sets a mode * * @set: mode parameters * * This function is the device-specific portion of the DRM CRTC mode set. * For the SVGA device, we do this by defining a Screen Target, binding a * GB Surface to that target, and finally update the screen target. * * RETURNS: * 0 on success, error code otherwise */ static int vmw_stdu_crtc_set_config(struct drm_mode_set *set) { struct vmw_private *dev_priv; struct vmw_framebuffer *vfb; struct vmw_screen_target_display_unit *stdu; struct drm_display_mode *mode; struct drm_framebuffer *new_fb; struct drm_crtc *crtc; struct drm_encoder *encoder; struct drm_connector *connector; bool turning_off; int ret; if (!set || !set->crtc) return -EINVAL; crtc = set->crtc; stdu = vmw_crtc_to_stdu(crtc); mode = set->mode; new_fb = set->fb; dev_priv = vmw_priv(crtc->dev); turning_off = set->num_connectors == 0 || !mode || !new_fb; vfb = (new_fb) ? vmw_framebuffer_to_vfb(new_fb) : NULL; if (set->num_connectors > 1) { DRM_ERROR("Too many connectors\n"); return -EINVAL; } if (set->num_connectors == 1 && set->connectors[0] != &stdu->base.connector) { DRM_ERROR("Connectors don't match %p %p\n", set->connectors[0], &stdu->base.connector); return -EINVAL; } if (!turning_off && (set->x + mode->hdisplay > new_fb->width || set->y + mode->vdisplay > new_fb->height)) { DRM_ERROR("Set outside of framebuffer\n"); return -EINVAL; } /* Only one active implicit frame-buffer at a time. */ mutex_lock(&dev_priv->global_kms_state_mutex); if (!turning_off && stdu->base.is_implicit && dev_priv->implicit_fb && !(dev_priv->num_implicit == 1 && stdu->base.active_implicit) && dev_priv->implicit_fb != vfb) { mutex_unlock(&dev_priv->global_kms_state_mutex); DRM_ERROR("Multiple implicit framebuffers not supported.\n"); return -EINVAL; } mutex_unlock(&dev_priv->global_kms_state_mutex); /* Since they always map one to one these are safe */ connector = &stdu->base.connector; encoder = &stdu->base.encoder; if (stdu->defined) { ret = vmw_stdu_bind_st(dev_priv, stdu, NULL); if (ret) return ret; vmw_stdu_unpin_display(stdu); (void) vmw_stdu_update_st(dev_priv, stdu); vmw_kms_del_active(dev_priv, &stdu->base); ret = vmw_stdu_destroy_st(dev_priv, stdu); if (ret) return ret; crtc->primary->fb = NULL; crtc->enabled = false; encoder->crtc = NULL; connector->encoder = NULL; stdu->content_fb_type = SAME_AS_DISPLAY; crtc->x = set->x; crtc->y = set->y; } if (turning_off) return 0; /* * Steps to displaying a surface, assume surface is already * bound: * 1. define a screen target * 2. bind a fb to the screen target * 3. update that screen target (this is done later by * vmw_kms_stdu_do_surface_dirty_or_present) */ /* * Note on error handling: We can't really restore the crtc to * it's original state on error, but we at least update the * current state to what's submitted to hardware to enable * future recovery. */ vmw_svga_enable(dev_priv); ret = vmw_stdu_define_st(dev_priv, stdu, mode, set->x, set->y); if (ret) return ret; crtc->x = set->x; crtc->y = set->y; crtc->mode = *mode; ret = vmw_stdu_bind_fb(dev_priv, crtc, mode, new_fb); if (ret) return ret; vmw_kms_add_active(dev_priv, &stdu->base, vfb); crtc->enabled = true; connector->encoder = encoder; encoder->crtc = crtc; return 0; } /** * vmw_stdu_crtc_page_flip - Binds a buffer to a screen target * * @crtc: CRTC to attach FB to * @fb: FB to attach * @event: Event to be posted. This event should've been alloced * using k[mz]alloc, and should've been completely initialized. * @page_flip_flags: Input flags. * * If the STDU uses the same display and content buffers, i.e. a true flip, * this function will replace the existing display buffer with the new content * buffer. * * If the STDU uses different display and content buffers, i.e. a blit, then * only the content buffer will be updated. * * RETURNS: * 0 on success, error code on failure */ static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *new_fb, struct drm_pending_vblank_event *event, uint32_t flags) { struct vmw_private *dev_priv = vmw_priv(crtc->dev); struct vmw_screen_target_display_unit *stdu; struct drm_vmw_rect vclips; struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb); int ret; dev_priv = vmw_priv(crtc->dev); stdu = vmw_crtc_to_stdu(crtc); if (!stdu->defined || !vmw_kms_crtc_flippable(dev_priv, crtc)) return -EINVAL; ret = vmw_stdu_bind_fb(dev_priv, crtc, &crtc->mode, new_fb); if (ret) return ret; if (stdu->base.is_implicit) vmw_kms_update_implicit_fb(dev_priv, crtc); vclips.x = crtc->x; vclips.y = crtc->y; vclips.w = crtc->mode.hdisplay; vclips.h = crtc->mode.vdisplay; if (vfb->dmabuf) ret = vmw_kms_stdu_dma(dev_priv, NULL, vfb, NULL, NULL, &vclips, 1, 1, true, false); else ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, &vclips, NULL, 0, 0, 1, 1, NULL); if (ret) return ret; if (event) { struct vmw_fence_obj *fence = NULL; struct drm_file *file_priv = event->base.file_priv; vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL); if (!fence) return -ENOMEM; ret = vmw_event_fence_action_queue(file_priv, fence, &event->base, &event->event.tv_sec, &event->event.tv_usec, true); vmw_fence_obj_unreference(&fence); } else { vmw_fifo_flush(dev_priv, false); } return 0; } /** * vmw_stdu_dmabuf_clip - Callback to encode a suface DMA command cliprect * * @dirty: The closure structure. * * Encodes a surface DMA command cliprect and updates the bounding box * for the DMA. */ static void vmw_stdu_dmabuf_clip(struct vmw_kms_dirty *dirty) { struct vmw_stdu_dirty *ddirty = container_of(dirty, struct vmw_stdu_dirty, base); struct vmw_stdu_dma *cmd = dirty->cmd; struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; blit += dirty->num_hits; blit->srcx = dirty->fb_x; blit->srcy = dirty->fb_y; blit->x = dirty->unit_x1; blit->y = dirty->unit_y1; blit->d = 1; blit->w = dirty->unit_x2 - dirty->unit_x1; blit->h = dirty->unit_y2 - dirty->unit_y1; dirty->num_hits++; if (ddirty->transfer != SVGA3D_WRITE_HOST_VRAM) return; /* Destination bounding box */ ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1); ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1); ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2); ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2); } /** * vmw_stdu_dmabuf_fifo_commit - Callback to fill in and submit a DMA command. * * @dirty: The closure structure. * * Fills in the missing fields in a DMA command, and optionally encodes * a screen target update command, depending on transfer direction. */ static void vmw_stdu_dmabuf_fifo_commit(struct vmw_kms_dirty *dirty) { struct vmw_stdu_dirty *ddirty = container_of(dirty, struct vmw_stdu_dirty, base); struct vmw_screen_target_display_unit *stdu = container_of(dirty->unit, typeof(*stdu), base); struct vmw_stdu_dma *cmd = dirty->cmd; struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; SVGA3dCmdSurfaceDMASuffix *suffix = (SVGA3dCmdSurfaceDMASuffix *) &blit[dirty->num_hits]; size_t blit_size = sizeof(*blit) * dirty->num_hits + sizeof(*suffix); if (!dirty->num_hits) { vmw_fifo_commit(dirty->dev_priv, 0); return; } cmd->header.id = SVGA_3D_CMD_SURFACE_DMA; cmd->header.size = sizeof(cmd->body) + blit_size; vmw_bo_get_guest_ptr(&ddirty->buf->base, &cmd->body.guest.ptr); cmd->body.guest.pitch = ddirty->pitch; cmd->body.host.sid = stdu->display_srf->res.id; cmd->body.host.face = 0; cmd->body.host.mipmap = 0; cmd->body.transfer = ddirty->transfer; suffix->suffixSize = sizeof(*suffix); suffix->maximumOffset = ddirty->buf->base.num_pages * PAGE_SIZE; if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM) { blit_size += sizeof(struct vmw_stdu_update); vmw_stdu_populate_update(&suffix[1], stdu->base.unit, ddirty->left, ddirty->right, ddirty->top, ddirty->bottom); } vmw_fifo_commit(dirty->dev_priv, sizeof(*cmd) + blit_size); ddirty->left = ddirty->top = S32_MAX; ddirty->right = ddirty->bottom = S32_MIN; } /** * vmw_kms_stdu_dma - Perform a DMA transfer between a dma-buffer backed * framebuffer and the screen target system. * * @dev_priv: Pointer to the device private structure. * @file_priv: Pointer to a struct drm-file identifying the caller. May be * set to NULL, but then @user_fence_rep must also be set to NULL. * @vfb: Pointer to the dma-buffer backed framebuffer. * @clips: Array of clip rects. Either @clips or @vclips must be NULL. * @vclips: Alternate array of clip rects. Either @clips or @vclips must * be NULL. * @num_clips: Number of clip rects in @clips or @vclips. * @increment: Increment to use when looping over @clips or @vclips. * @to_surface: Whether to DMA to the screen target system as opposed to * from the screen target system. * @interruptible: Whether to perform waits interruptible if possible. * * If DMA-ing till the screen target system, the function will also notify * the screen target system that a bounding box of the cliprects has been * updated. * Returns 0 on success, negative error code on failure. -ERESTARTSYS if * interrupted. */ int vmw_kms_stdu_dma(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_clip_rect *clips, struct drm_vmw_rect *vclips, uint32_t num_clips, int increment, bool to_surface, bool interruptible) { struct vmw_dma_buffer *buf = container_of(vfb, struct vmw_framebuffer_dmabuf, base)->buffer; struct vmw_stdu_dirty ddirty; int ret; ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, interruptible, false); if (ret) return ret; ddirty.transfer = (to_surface) ? SVGA3D_WRITE_HOST_VRAM : SVGA3D_READ_HOST_VRAM; ddirty.left = ddirty.top = S32_MAX; ddirty.right = ddirty.bottom = S32_MIN; ddirty.pitch = vfb->base.pitches[0]; ddirty.buf = buf; ddirty.base.fifo_commit = vmw_stdu_dmabuf_fifo_commit; ddirty.base.clip = vmw_stdu_dmabuf_clip; ddirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_dma) + num_clips * sizeof(SVGA3dCopyBox) + sizeof(SVGA3dCmdSurfaceDMASuffix); if (to_surface) ddirty.base.fifo_reserve_size += sizeof(struct vmw_stdu_update); ret = vmw_kms_helper_dirty(dev_priv, vfb, clips, vclips, 0, 0, num_clips, increment, &ddirty.base); vmw_kms_helper_buffer_finish(dev_priv, file_priv, buf, NULL, user_fence_rep); return ret; } /** * vmw_stdu_surface_clip - Callback to encode a surface copy command cliprect * * @dirty: The closure structure. * * Encodes a surface copy command cliprect and updates the bounding box * for the copy. */ static void vmw_kms_stdu_surface_clip(struct vmw_kms_dirty *dirty) { struct vmw_stdu_dirty *sdirty = container_of(dirty, struct vmw_stdu_dirty, base); struct vmw_stdu_surface_copy *cmd = dirty->cmd; struct vmw_screen_target_display_unit *stdu = container_of(dirty->unit, typeof(*stdu), base); if (sdirty->sid != stdu->display_srf->res.id) { struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; blit += dirty->num_hits; blit->srcx = dirty->fb_x; blit->srcy = dirty->fb_y; blit->x = dirty->unit_x1; blit->y = dirty->unit_y1; blit->d = 1; blit->w = dirty->unit_x2 - dirty->unit_x1; blit->h = dirty->unit_y2 - dirty->unit_y1; } dirty->num_hits++; /* Destination bounding box */ sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1); sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1); sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2); sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2); } /** * vmw_stdu_surface_fifo_commit - Callback to fill in and submit a surface * copy command. * * @dirty: The closure structure. * * Fills in the missing fields in a surface copy command, and encodes a screen * target update command. */ static void vmw_kms_stdu_surface_fifo_commit(struct vmw_kms_dirty *dirty) { struct vmw_stdu_dirty *sdirty = container_of(dirty, struct vmw_stdu_dirty, base); struct vmw_screen_target_display_unit *stdu = container_of(dirty->unit, typeof(*stdu), base); struct vmw_stdu_surface_copy *cmd = dirty->cmd; struct vmw_stdu_update *update; size_t blit_size = sizeof(SVGA3dCopyBox) * dirty->num_hits; size_t commit_size; if (!dirty->num_hits) { vmw_fifo_commit(dirty->dev_priv, 0); return; } if (sdirty->sid != stdu->display_srf->res.id) { struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; cmd->header.id = SVGA_3D_CMD_SURFACE_COPY; cmd->header.size = sizeof(cmd->body) + blit_size; cmd->body.src.sid = sdirty->sid; cmd->body.dest.sid = stdu->display_srf->res.id; update = (struct vmw_stdu_update *) &blit[dirty->num_hits]; commit_size = sizeof(*cmd) + blit_size + sizeof(*update); } else { update = dirty->cmd; commit_size = sizeof(*update); } vmw_stdu_populate_update(update, stdu->base.unit, sdirty->left, sdirty->right, sdirty->top, sdirty->bottom); vmw_fifo_commit(dirty->dev_priv, commit_size); sdirty->left = sdirty->top = S32_MAX; sdirty->right = sdirty->bottom = S32_MIN; } /** * vmw_kms_stdu_surface_dirty - Dirty part of a surface backed framebuffer * * @dev_priv: Pointer to the device private structure. * @framebuffer: Pointer to the surface-buffer backed framebuffer. * @clips: Array of clip rects. Either @clips or @vclips must be NULL. * @vclips: Alternate array of clip rects. Either @clips or @vclips must * be NULL. * @srf: Pointer to surface to blit from. If NULL, the surface attached * to @framebuffer will be used. * @dest_x: X coordinate offset to align @srf with framebuffer coordinates. * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates. * @num_clips: Number of clip rects in @clips. * @inc: Increment to use when looping over @clips. * @out_fence: If non-NULL, will return a ref-counted pointer to a * struct vmw_fence_obj. The returned fence pointer may be NULL in which * case the device has already synchronized. * * Returns 0 on success, negative error code on failure. -ERESTARTSYS if * interrupted. */ int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv, struct vmw_framebuffer *framebuffer, struct drm_clip_rect *clips, struct drm_vmw_rect *vclips, struct vmw_resource *srf, s32 dest_x, s32 dest_y, unsigned num_clips, int inc, struct vmw_fence_obj **out_fence) { struct vmw_framebuffer_surface *vfbs = container_of(framebuffer, typeof(*vfbs), base); struct vmw_stdu_dirty sdirty; int ret; if (!srf) srf = &vfbs->surface->res; ret = vmw_kms_helper_resource_prepare(srf, true); if (ret) return ret; if (vfbs->is_dmabuf_proxy) { ret = vmw_kms_update_proxy(srf, clips, num_clips, inc); if (ret) goto out_finish; } sdirty.base.fifo_commit = vmw_kms_stdu_surface_fifo_commit; sdirty.base.clip = vmw_kms_stdu_surface_clip; sdirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_surface_copy) + sizeof(SVGA3dCopyBox) * num_clips + sizeof(struct vmw_stdu_update); sdirty.sid = srf->id; sdirty.left = sdirty.top = S32_MAX; sdirty.right = sdirty.bottom = S32_MIN; ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, dest_x, dest_y, num_clips, inc, &sdirty.base); out_finish: vmw_kms_helper_resource_finish(srf, out_fence); return ret; } /* * Screen Target CRTC dispatch table */ static const struct drm_crtc_funcs vmw_stdu_crtc_funcs = { .cursor_set2 = vmw_du_crtc_cursor_set2, .cursor_move = vmw_du_crtc_cursor_move, .gamma_set = vmw_du_crtc_gamma_set, .destroy = vmw_stdu_crtc_destroy, .set_config = vmw_stdu_crtc_set_config, .page_flip = vmw_stdu_crtc_page_flip, }; /****************************************************************************** * Screen Target Display Unit Encoder Functions *****************************************************************************/ /** * vmw_stdu_encoder_destroy - cleans up the STDU * * @encoder: used the get the containing STDU * * vmwgfx cleans up crtc/encoder/connector all at the same time so technically * this can be a no-op. Nevertheless, it doesn't hurt of have this in case * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't * get called. */ static void vmw_stdu_encoder_destroy(struct drm_encoder *encoder) { vmw_stdu_destroy(vmw_encoder_to_stdu(encoder)); } static const struct drm_encoder_funcs vmw_stdu_encoder_funcs = { .destroy = vmw_stdu_encoder_destroy, }; /****************************************************************************** * Screen Target Display Unit Connector Functions *****************************************************************************/ /** * vmw_stdu_connector_destroy - cleans up the STDU * * @connector: used to get the containing STDU * * vmwgfx cleans up crtc/encoder/connector all at the same time so technically * this can be a no-op. Nevertheless, it doesn't hurt of have this in case * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't * get called. */ static void vmw_stdu_connector_destroy(struct drm_connector *connector) { vmw_stdu_destroy(vmw_connector_to_stdu(connector)); } static const struct drm_connector_funcs vmw_stdu_connector_funcs = { .dpms = vmw_du_connector_dpms, .detect = vmw_du_connector_detect, .fill_modes = vmw_du_connector_fill_modes, .set_property = vmw_du_connector_set_property, .destroy = vmw_stdu_connector_destroy, }; /** * vmw_stdu_init - Sets up a Screen Target Display Unit * * @dev_priv: VMW DRM device * @unit: unit number range from 0 to VMWGFX_NUM_DISPLAY_UNITS * * This function is called once per CRTC, and allocates one Screen Target * display unit to represent that CRTC. Since the SVGA device does not separate * out encoder and connector, they are represented as part of the STDU as well. */ static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit) { struct vmw_screen_target_display_unit *stdu; struct drm_device *dev = dev_priv->dev; struct drm_connector *connector; struct drm_encoder *encoder; struct drm_crtc *crtc; stdu = kzalloc(sizeof(*stdu), GFP_KERNEL); if (!stdu) return -ENOMEM; stdu->base.unit = unit; crtc = &stdu->base.crtc; encoder = &stdu->base.encoder; connector = &stdu->base.connector; stdu->base.pref_active = (unit == 0); stdu->base.pref_width = dev_priv->initial_width; stdu->base.pref_height = dev_priv->initial_height; stdu->base.is_implicit = false; drm_connector_init(dev, connector, &vmw_stdu_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); connector->status = vmw_du_connector_detect(connector, false); drm_encoder_init(dev, encoder, &vmw_stdu_encoder_funcs, DRM_MODE_ENCODER_VIRTUAL, NULL); drm_mode_connector_attach_encoder(connector, encoder); encoder->possible_crtcs = (1 << unit); encoder->possible_clones = 0; (void) drm_connector_register(connector); drm_crtc_init(dev, crtc, &vmw_stdu_crtc_funcs); drm_mode_crtc_set_gamma_size(crtc, 256); drm_object_attach_property(&connector->base, dev->mode_config.dirty_info_property, 1); drm_object_attach_property(&connector->base, dev_priv->hotplug_mode_update_property, 1); drm_object_attach_property(&connector->base, dev->mode_config.suggested_x_property, 0); drm_object_attach_property(&connector->base, dev->mode_config.suggested_y_property, 0); if (dev_priv->implicit_placement_property) drm_object_attach_property (&connector->base, dev_priv->implicit_placement_property, stdu->base.is_implicit); return 0; } /** * vmw_stdu_destroy - Cleans up a vmw_screen_target_display_unit * * @stdu: Screen Target Display Unit to be destroyed * * Clean up after vmw_stdu_init */ static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu) { vmw_stdu_unpin_display(stdu); vmw_du_cleanup(&stdu->base); kfree(stdu); } /****************************************************************************** * Screen Target Display KMS Functions * * These functions are called by the common KMS code in vmwgfx_kms.c *****************************************************************************/ /** * vmw_kms_stdu_init_display - Initializes a Screen Target based display * * @dev_priv: VMW DRM device * * This function initialize a Screen Target based display device. It checks * the capability bits to make sure the underlying hardware can support * screen targets, and then creates the maximum number of CRTCs, a.k.a Display * Units, as supported by the display hardware. * * RETURNS: * 0 on success, error code otherwise */ int vmw_kms_stdu_init_display(struct vmw_private *dev_priv) { struct drm_device *dev = dev_priv->dev; int i, ret; /* Do nothing if Screen Target support is turned off */ if (!VMWGFX_ENABLE_SCREEN_TARGET_OTABLE) return -ENOSYS; if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) return -ENOSYS; ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); if (unlikely(ret != 0)) return ret; ret = drm_mode_create_dirty_info_property(dev); if (unlikely(ret != 0)) goto err_vblank_cleanup; dev_priv->active_display_unit = vmw_du_screen_target; vmw_kms_create_implicit_placement_property(dev_priv, false); for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) { ret = vmw_stdu_init(dev_priv, i); if (unlikely(ret != 0)) { DRM_ERROR("Failed to initialize STDU %d", i); goto err_vblank_cleanup; } } DRM_INFO("Screen Target Display device initialized\n"); return 0; err_vblank_cleanup: drm_vblank_cleanup(dev); return ret; } /** * vmw_kms_stdu_close_display - Cleans up after vmw_kms_stdu_init_display * * @dev_priv: VMW DRM device * * Frees up any resources allocated by vmw_kms_stdu_init_display * * RETURNS: * 0 on success */ int vmw_kms_stdu_close_display(struct vmw_private *dev_priv) { struct drm_device *dev = dev_priv->dev; drm_vblank_cleanup(dev); return 0; }