/************************************************************************** * * Copyright © 2011-2015 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 <drm/drm_plane_helper.h> #define vmw_crtc_to_sou(x) \ container_of(x, struct vmw_screen_object_unit, base.crtc) #define vmw_encoder_to_sou(x) \ container_of(x, struct vmw_screen_object_unit, base.encoder) #define vmw_connector_to_sou(x) \ container_of(x, struct vmw_screen_object_unit, base.connector) /** * struct vmw_kms_sou_surface_dirty - Closure structure for * blit surface to screen command. * @base: The base type we derive from. Used by vmw_kms_helper_dirty(). * @left: Left side of bounding box. * @right: Right side of bounding box. * @top: Top side of bounding box. * @bottom: Bottom side of bounding box. * @dst_x: Difference between source clip rects and framebuffer coordinates. * @dst_y: Difference between source clip rects and framebuffer coordinates. * @sid: Surface id of surface to copy from. */ struct vmw_kms_sou_surface_dirty { struct vmw_kms_dirty base; s32 left, right, top, bottom; s32 dst_x, dst_y; u32 sid; }; /* * SVGA commands that are used by this code. Please see the device headers * for explanation. */ struct vmw_kms_sou_readback_blit { uint32 header; SVGAFifoCmdBlitScreenToGMRFB body; }; struct vmw_kms_sou_dmabuf_blit { uint32 header; SVGAFifoCmdBlitGMRFBToScreen body; }; struct vmw_kms_sou_dirty_cmd { SVGA3dCmdHeader header; SVGA3dCmdBlitSurfaceToScreen body; }; /* * Other structs. */ struct vmw_screen_object_display { unsigned num_implicit; struct vmw_framebuffer *implicit_fb; SVGAFifoCmdDefineGMRFB cur; struct vmw_dma_buffer *pinned_gmrfb; }; /** * Display unit using screen objects. */ struct vmw_screen_object_unit { struct vmw_display_unit base; unsigned long buffer_size; /**< Size of allocated buffer */ struct vmw_dma_buffer *buffer; /**< Backing store buffer */ bool defined; bool active_implicit; }; static void vmw_sou_destroy(struct vmw_screen_object_unit *sou) { vmw_du_cleanup(&sou->base); kfree(sou); } /* * Screen Object Display Unit CRTC functions */ static void vmw_sou_crtc_destroy(struct drm_crtc *crtc) { vmw_sou_destroy(vmw_crtc_to_sou(crtc)); } static void vmw_sou_del_active(struct vmw_private *vmw_priv, struct vmw_screen_object_unit *sou) { struct vmw_screen_object_display *ld = vmw_priv->sou_priv; if (sou->active_implicit) { if (--(ld->num_implicit) == 0) ld->implicit_fb = NULL; sou->active_implicit = false; } } static void vmw_sou_add_active(struct vmw_private *vmw_priv, struct vmw_screen_object_unit *sou, struct vmw_framebuffer *vfb) { struct vmw_screen_object_display *ld = vmw_priv->sou_priv; BUG_ON(!ld->num_implicit && ld->implicit_fb); if (!sou->active_implicit && sou->base.is_implicit) { ld->implicit_fb = vfb; sou->active_implicit = true; ld->num_implicit++; } } /** * Send the fifo command to create a screen. */ static int vmw_sou_fifo_create(struct vmw_private *dev_priv, struct vmw_screen_object_unit *sou, uint32_t x, uint32_t y, struct drm_display_mode *mode) { size_t fifo_size; struct { struct { uint32_t cmdType; } header; SVGAScreenObject obj; } *cmd; BUG_ON(!sou->buffer); fifo_size = sizeof(*cmd); cmd = vmw_fifo_reserve(dev_priv, fifo_size); /* The hardware has hung, nothing we can do about it here. */ if (unlikely(cmd == NULL)) { DRM_ERROR("Fifo reserve failed.\n"); return -ENOMEM; } memset(cmd, 0, fifo_size); cmd->header.cmdType = SVGA_CMD_DEFINE_SCREEN; cmd->obj.structSize = sizeof(SVGAScreenObject); cmd->obj.id = sou->base.unit; cmd->obj.flags = SVGA_SCREEN_HAS_ROOT | (sou->base.unit == 0 ? SVGA_SCREEN_IS_PRIMARY : 0); cmd->obj.size.width = mode->hdisplay; cmd->obj.size.height = mode->vdisplay; if (sou->base.is_implicit) { cmd->obj.root.x = x; cmd->obj.root.y = y; } else { cmd->obj.root.x = sou->base.gui_x; cmd->obj.root.y = sou->base.gui_y; } /* Ok to assume that buffer is pinned in vram */ vmw_bo_get_guest_ptr(&sou->buffer->base, &cmd->obj.backingStore.ptr); cmd->obj.backingStore.pitch = mode->hdisplay * 4; vmw_fifo_commit(dev_priv, fifo_size); sou->defined = true; return 0; } /** * Send the fifo command to destroy a screen. */ static int vmw_sou_fifo_destroy(struct vmw_private *dev_priv, struct vmw_screen_object_unit *sou) { size_t fifo_size; int ret; struct { struct { uint32_t cmdType; } header; SVGAFifoCmdDestroyScreen body; } *cmd; /* no need to do anything */ if (unlikely(!sou->defined)) return 0; fifo_size = sizeof(*cmd); cmd = vmw_fifo_reserve(dev_priv, fifo_size); /* the hardware has hung, nothing we can do about it here */ if (unlikely(cmd == NULL)) { DRM_ERROR("Fifo reserve failed.\n"); return -ENOMEM; } memset(cmd, 0, fifo_size); cmd->header.cmdType = SVGA_CMD_DESTROY_SCREEN; cmd->body.screenId = sou->base.unit; vmw_fifo_commit(dev_priv, fifo_size); /* 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"); else sou->defined = false; return ret; } /** * Free the backing store. */ static void vmw_sou_backing_free(struct vmw_private *dev_priv, struct vmw_screen_object_unit *sou) { vmw_dmabuf_unreference(&sou->buffer); sou->buffer_size = 0; } /** * Allocate the backing store for the buffer. */ static int vmw_sou_backing_alloc(struct vmw_private *dev_priv, struct vmw_screen_object_unit *sou, unsigned long size) { int ret; if (sou->buffer_size == size) return 0; if (sou->buffer) vmw_sou_backing_free(dev_priv, sou); sou->buffer = kzalloc(sizeof(*sou->buffer), GFP_KERNEL); if (unlikely(sou->buffer == NULL)) return -ENOMEM; /* After we have alloced the backing store might not be able to * resume the overlays, this is preferred to failing to alloc. */ vmw_overlay_pause_all(dev_priv); ret = vmw_dmabuf_init(dev_priv, sou->buffer, size, &vmw_vram_ne_placement, false, &vmw_dmabuf_bo_free); vmw_overlay_resume_all(dev_priv); if (unlikely(ret != 0)) sou->buffer = NULL; /* vmw_dmabuf_init frees on error */ else sou->buffer_size = size; return ret; } static int vmw_sou_crtc_set_config(struct drm_mode_set *set) { struct vmw_private *dev_priv; struct vmw_screen_object_unit *sou; struct drm_connector *connector; struct drm_display_mode *mode; struct drm_encoder *encoder; struct vmw_framebuffer *vfb; struct drm_framebuffer *fb; struct drm_crtc *crtc; int ret = 0; if (!set) return -EINVAL; if (!set->crtc) return -EINVAL; /* get the sou */ crtc = set->crtc; sou = vmw_crtc_to_sou(crtc); vfb = set->fb ? vmw_framebuffer_to_vfb(set->fb) : NULL; dev_priv = vmw_priv(crtc->dev); if (set->num_connectors > 1) { DRM_ERROR("Too many connectors\n"); return -EINVAL; } if (set->num_connectors == 1 && set->connectors[0] != &sou->base.connector) { DRM_ERROR("Connector doesn't match %p %p\n", set->connectors[0], &sou->base.connector); return -EINVAL; } /* sou only supports one fb active at the time */ if (sou->base.is_implicit && dev_priv->sou_priv->implicit_fb && vfb && !(dev_priv->sou_priv->num_implicit == 1 && sou->active_implicit) && dev_priv->sou_priv->implicit_fb != vfb) { DRM_ERROR("Multiple framebuffers not supported\n"); return -EINVAL; } /* since they always map one to one these are safe */ connector = &sou->base.connector; encoder = &sou->base.encoder; /* should we turn the crtc off */ if (set->num_connectors == 0 || !set->mode || !set->fb) { ret = vmw_sou_fifo_destroy(dev_priv, sou); /* the hardware has hung don't do anything more */ if (unlikely(ret != 0)) return ret; connector->encoder = NULL; encoder->crtc = NULL; crtc->primary->fb = NULL; crtc->x = 0; crtc->y = 0; crtc->enabled = false; vmw_sou_del_active(dev_priv, sou); vmw_sou_backing_free(dev_priv, sou); return 0; } /* we now know we want to set a mode */ mode = set->mode; fb = set->fb; if (set->x + mode->hdisplay > fb->width || set->y + mode->vdisplay > fb->height) { DRM_ERROR("set outside of framebuffer\n"); return -EINVAL; } vmw_svga_enable(dev_priv); if (mode->hdisplay != crtc->mode.hdisplay || mode->vdisplay != crtc->mode.vdisplay) { /* no need to check if depth is different, because backing * store depth is forced to 4 by the device. */ ret = vmw_sou_fifo_destroy(dev_priv, sou); /* the hardware has hung don't do anything more */ if (unlikely(ret != 0)) return ret; vmw_sou_backing_free(dev_priv, sou); } if (!sou->buffer) { /* forced to depth 4 by the device */ size_t size = mode->hdisplay * mode->vdisplay * 4; ret = vmw_sou_backing_alloc(dev_priv, sou, size); if (unlikely(ret != 0)) return ret; } ret = vmw_sou_fifo_create(dev_priv, sou, set->x, set->y, mode); if (unlikely(ret != 0)) { /* * We are in a bit of a situation here, the hardware has * hung and we may or may not have a buffer hanging of * the screen object, best thing to do is not do anything * if we where defined, if not just turn the crtc of. * Not what userspace wants but it needs to htfu. */ if (sou->defined) return ret; connector->encoder = NULL; encoder->crtc = NULL; crtc->primary->fb = NULL; crtc->x = 0; crtc->y = 0; crtc->enabled = false; return ret; } vmw_sou_add_active(dev_priv, sou, vfb); connector->encoder = encoder; encoder->crtc = crtc; crtc->mode = *mode; crtc->primary->fb = fb; crtc->x = set->x; crtc->y = set->y; crtc->enabled = true; return 0; } /** * Returns if this unit can be page flipped. * Must be called with the mode_config mutex held. */ static bool vmw_sou_screen_object_flippable(struct vmw_private *dev_priv, struct drm_crtc *crtc) { struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc); if (!sou->base.is_implicit) return true; if (dev_priv->sou_priv->num_implicit != 1) return false; return true; } /** * Update the implicit fb to the current fb of this crtc. * Must be called with the mode_config mutex held. */ static void vmw_sou_update_implicit_fb(struct vmw_private *dev_priv, struct drm_crtc *crtc) { struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc); BUG_ON(!sou->base.is_implicit); dev_priv->sou_priv->implicit_fb = vmw_framebuffer_to_vfb(sou->base.crtc.primary->fb); } static int vmw_sou_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, struct drm_pending_vblank_event *event, uint32_t flags) { struct vmw_private *dev_priv = vmw_priv(crtc->dev); struct drm_framebuffer *old_fb = crtc->primary->fb; struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb); struct vmw_fence_obj *fence = NULL; struct drm_clip_rect clips; int ret; /* require ScreenObject support for page flipping */ if (!dev_priv->sou_priv) return -ENOSYS; if (!vmw_sou_screen_object_flippable(dev_priv, crtc)) return -EINVAL; crtc->primary->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 = vmw_kms_sou_do_dmabuf_dirty(dev_priv, vfb, &clips, 1, 1, true, &fence); else ret = vmw_kms_sou_do_surface_dirty(dev_priv, vfb, &clips, NULL, NULL, 0, 0, 1, 1, &fence); if (ret != 0) goto out_no_fence; if (!fence) { ret = -EINVAL; goto out_no_fence; } if (event) { struct drm_file *file_priv = event->base.file_priv; 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_sou_update_implicit_fb(dev_priv, crtc); return ret; out_no_fence: crtc->primary->fb = old_fb; return ret; } static struct drm_crtc_funcs vmw_screen_object_crtc_funcs = { .cursor_set = vmw_du_crtc_cursor_set, .cursor_move = vmw_du_crtc_cursor_move, .gamma_set = vmw_du_crtc_gamma_set, .destroy = vmw_sou_crtc_destroy, .set_config = vmw_sou_crtc_set_config, .page_flip = vmw_sou_crtc_page_flip, }; /* * Screen Object Display Unit encoder functions */ static void vmw_sou_encoder_destroy(struct drm_encoder *encoder) { vmw_sou_destroy(vmw_encoder_to_sou(encoder)); } static struct drm_encoder_funcs vmw_screen_object_encoder_funcs = { .destroy = vmw_sou_encoder_destroy, }; /* * Screen Object Display Unit connector functions */ static void vmw_sou_connector_destroy(struct drm_connector *connector) { vmw_sou_destroy(vmw_connector_to_sou(connector)); } static struct drm_connector_funcs vmw_sou_connector_funcs = { .dpms = vmw_du_connector_dpms, .set_property = vmw_du_connector_set_property, .destroy = vmw_sou_connector_destroy, }; static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit) { struct vmw_screen_object_unit *sou; struct drm_device *dev = dev_priv->dev; struct drm_connector *connector; struct drm_encoder *encoder; struct drm_crtc *crtc; sou = kzalloc(sizeof(*sou), GFP_KERNEL); if (!sou) return -ENOMEM; sou->base.unit = unit; crtc = &sou->base.crtc; encoder = &sou->base.encoder; connector = &sou->base.connector; sou->active_implicit = false; sou->base.pref_active = (unit == 0); sou->base.pref_width = dev_priv->initial_width; sou->base.pref_height = dev_priv->initial_height; sou->base.pref_mode = NULL; sou->base.is_implicit = true; drm_connector_init(dev, connector, &vmw_sou_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL); connector->status = vmw_du_connector_detect(connector, true); drm_encoder_init(dev, encoder, &vmw_screen_object_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_screen_object_crtc_funcs); drm_mode_crtc_set_gamma_size(crtc, 256); drm_object_attach_property(&connector->base, dev->mode_config.dirty_info_property, 1); return 0; } int vmw_kms_sou_init_display(struct vmw_private *dev_priv) { struct drm_device *dev = dev_priv->dev; int i, ret; if (dev_priv->sou_priv) { DRM_INFO("sou system already on\n"); return -EINVAL; } if (!(dev_priv->capabilities & SVGA_CAP_SCREEN_OBJECT_2)) { DRM_INFO("Not using screen objects," " missing cap SCREEN_OBJECT_2\n"); return -ENOSYS; } ret = -ENOMEM; dev_priv->sou_priv = kmalloc(sizeof(*dev_priv->sou_priv), GFP_KERNEL); if (unlikely(!dev_priv->sou_priv)) goto err_no_mem; dev_priv->sou_priv->num_implicit = 0; dev_priv->sou_priv->implicit_fb = NULL; ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); if (unlikely(ret != 0)) goto err_free; ret = drm_mode_create_dirty_info_property(dev); if (unlikely(ret != 0)) goto err_vblank_cleanup; for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) vmw_sou_init(dev_priv, i); dev_priv->active_display_unit = vmw_du_screen_object; DRM_INFO("Screen Objects Display Unit initialized\n"); return 0; err_vblank_cleanup: drm_vblank_cleanup(dev); err_free: kfree(dev_priv->sou_priv); dev_priv->sou_priv = NULL; err_no_mem: return ret; } int vmw_kms_sou_close_display(struct vmw_private *dev_priv) { struct drm_device *dev = dev_priv->dev; if (!dev_priv->sou_priv) return -ENOSYS; drm_vblank_cleanup(dev); kfree(dev_priv->sou_priv); return 0; } static int do_dmabuf_define_gmrfb(struct vmw_private *dev_priv, struct vmw_framebuffer *framebuffer) { struct vmw_dma_buffer *buf = container_of(framebuffer, struct vmw_framebuffer_dmabuf, base)->buffer; int depth = framebuffer->base.depth; 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; cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); if (!cmd) { DRM_ERROR("Out of fifo space for dirty framebuffer command.\n"); return -ENOMEM; } 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]; /* Buffer is reserved in vram or GMR */ vmw_bo_get_guest_ptr(&buf->base, &cmd->body.ptr); vmw_fifo_commit(dev_priv, sizeof(*cmd)); return 0; } /** * vmw_sou_surface_fifo_commit - Callback to fill in and submit a * blit surface to screen command. * * @dirty: The closure structure. * * Fills in the missing fields in the command, and translates the cliprects * to match the destination bounding box encoded. */ static void vmw_sou_surface_fifo_commit(struct vmw_kms_dirty *dirty) { struct vmw_kms_sou_surface_dirty *sdirty = container_of(dirty, typeof(*sdirty), base); struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd; s32 trans_x = dirty->unit->crtc.x - sdirty->dst_x; s32 trans_y = dirty->unit->crtc.y - sdirty->dst_y; size_t region_size = dirty->num_hits * sizeof(SVGASignedRect); SVGASignedRect *blit = (SVGASignedRect *) &cmd[1]; int i; cmd->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN; cmd->header.size = sizeof(cmd->body) + region_size; /* * Use the destination bounding box to specify destination - and * source bounding regions. */ cmd->body.destRect.left = sdirty->left; cmd->body.destRect.right = sdirty->right; cmd->body.destRect.top = sdirty->top; cmd->body.destRect.bottom = sdirty->bottom; cmd->body.srcRect.left = sdirty->left + trans_x; cmd->body.srcRect.right = sdirty->right + trans_x; cmd->body.srcRect.top = sdirty->top + trans_y; cmd->body.srcRect.bottom = sdirty->bottom + trans_y; cmd->body.srcImage.sid = sdirty->sid; cmd->body.destScreenId = dirty->unit->unit; /* Blits are relative to the destination rect. Translate. */ for (i = 0; i < dirty->num_hits; ++i, ++blit) { blit->left -= sdirty->left; blit->right -= sdirty->left; blit->top -= sdirty->top; blit->bottom -= sdirty->top; } vmw_fifo_commit(dirty->dev_priv, region_size + sizeof(*cmd)); sdirty->left = sdirty->top = S32_MAX; sdirty->right = sdirty->bottom = S32_MIN; } /** * vmw_sou_surface_clip - Callback to encode a blit surface to screen cliprect. * * @dirty: The closure structure * * Encodes a SVGASignedRect cliprect and updates the bounding box of the * BLIT_SURFACE_TO_SCREEN command. */ static void vmw_sou_surface_clip(struct vmw_kms_dirty *dirty) { struct vmw_kms_sou_surface_dirty *sdirty = container_of(dirty, typeof(*sdirty), base); struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd; SVGASignedRect *blit = (SVGASignedRect *) &cmd[1]; /* Destination rect. */ blit += dirty->num_hits; blit->left = dirty->unit_x1; blit->top = dirty->unit_y1; blit->right = dirty->unit_x2; blit->bottom = dirty->unit_y2; /* 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); dirty->num_hits++; } /** * vmw_kms_sou_do_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_sou_do_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_kms_sou_surface_dirty sdirty; int ret; if (!srf) srf = &vfbs->surface->res; ret = vmw_kms_helper_resource_prepare(srf, true); if (ret) return ret; sdirty.base.fifo_commit = vmw_sou_surface_fifo_commit; sdirty.base.clip = vmw_sou_surface_clip; sdirty.base.dev_priv = dev_priv; sdirty.base.fifo_reserve_size = sizeof(struct vmw_kms_sou_dirty_cmd) + sizeof(SVGASignedRect) * num_clips; sdirty.sid = srf->id; sdirty.left = sdirty.top = S32_MAX; sdirty.right = sdirty.bottom = S32_MIN; sdirty.dst_x = dest_x; sdirty.dst_y = dest_y; ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, dest_x, dest_y, num_clips, inc, &sdirty.base); vmw_kms_helper_resource_finish(srf, out_fence); return ret; } /** * vmw_sou_dmabuf_fifo_commit - Callback to submit a set of readback clips. * * @dirty: The closure structure. * * Commits a previously built command buffer of readback clips. */ static void vmw_sou_dmabuf_fifo_commit(struct vmw_kms_dirty *dirty) { vmw_fifo_commit(dirty->dev_priv, sizeof(struct vmw_kms_sou_dmabuf_blit) * dirty->num_hits); } /** * vmw_sou_dmabuf_clip - Callback to encode a readback cliprect. * * @dirty: The closure structure * * Encodes a BLIT_GMRFB_TO_SCREEN cliprect. */ static void vmw_sou_dmabuf_clip(struct vmw_kms_dirty *dirty) { struct vmw_kms_sou_dmabuf_blit *blit = dirty->cmd; blit += dirty->num_hits; blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN; blit->body.destScreenId = dirty->unit->unit; blit->body.srcOrigin.x = dirty->fb_x; blit->body.srcOrigin.y = dirty->fb_y; blit->body.destRect.left = dirty->unit_x1; blit->body.destRect.top = dirty->unit_y1; blit->body.destRect.right = dirty->unit_x2; blit->body.destRect.bottom = dirty->unit_y2; dirty->num_hits++; } /** * vmw_kms_do_dmabuf_dirty - Dirty part of a dma-buffer backed framebuffer * * @dev_priv: Pointer to the device private structure. * @framebuffer: Pointer to the dma-buffer backed framebuffer. * @clips: Array of clip rects. * @num_clips: Number of clip rects in @clips. * @increment: Increment to use when looping over @clips. * @interruptible: Whether to perform waits interruptible if possible. * @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_sou_do_dmabuf_dirty(struct vmw_private *dev_priv, struct vmw_framebuffer *framebuffer, struct drm_clip_rect *clips, unsigned num_clips, int increment, bool interruptible, struct vmw_fence_obj **out_fence) { struct vmw_dma_buffer *buf = container_of(framebuffer, struct vmw_framebuffer_dmabuf, base)->buffer; struct vmw_kms_dirty dirty; int ret; ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, interruptible, false); if (ret) return ret; ret = do_dmabuf_define_gmrfb(dev_priv, framebuffer); if (unlikely(ret != 0)) goto out_revert; dirty.fifo_commit = vmw_sou_dmabuf_fifo_commit; dirty.clip = vmw_sou_dmabuf_clip; dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_dmabuf_blit) * num_clips; ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, NULL, 0, 0, num_clips, increment, &dirty); vmw_kms_helper_buffer_finish(dev_priv, NULL, buf, out_fence, NULL); return ret; out_revert: vmw_kms_helper_buffer_revert(buf); return ret; } /** * vmw_sou_readback_fifo_commit - Callback to submit a set of readback clips. * * @dirty: The closure structure. * * Commits a previously built command buffer of readback clips. */ static void vmw_sou_readback_fifo_commit(struct vmw_kms_dirty *dirty) { vmw_fifo_commit(dirty->dev_priv, sizeof(struct vmw_kms_sou_readback_blit) * dirty->num_hits); } /** * vmw_sou_readback_clip - Callback to encode a readback cliprect. * * @dirty: The closure structure * * Encodes a BLIT_SCREEN_TO_GMRFB cliprect. */ static void vmw_sou_readback_clip(struct vmw_kms_dirty *dirty) { struct vmw_kms_sou_readback_blit *blit = dirty->cmd; blit += dirty->num_hits; blit->header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB; blit->body.srcScreenId = dirty->unit->unit; blit->body.destOrigin.x = dirty->fb_x; blit->body.destOrigin.y = dirty->fb_y; blit->body.srcRect.left = dirty->unit_x1; blit->body.srcRect.top = dirty->unit_y1; blit->body.srcRect.right = dirty->unit_x2; blit->body.srcRect.bottom = dirty->unit_y2; dirty->num_hits++; } /** * vmw_kms_sou_readback - Perform a readback from the screen object system to * a dma-buffer backed framebuffer. * * @dev_priv: Pointer to the device private structure. * @file_priv: Pointer to a struct drm_file identifying the caller. * Must be set to NULL if @user_fence_rep is NULL. * @vfb: Pointer to the dma-buffer backed framebuffer. * @user_fence_rep: User-space provided structure for fence information. * Must be set to non-NULL if @file_priv is non-NULL. * @vclips: Array of clip rects. * @num_clips: Number of clip rects in @vclips. * * Returns 0 on success, negative error code on failure. -ERESTARTSYS if * interrupted. */ int vmw_kms_sou_readback(struct vmw_private *dev_priv, struct drm_file *file_priv, struct vmw_framebuffer *vfb, struct drm_vmw_fence_rep __user *user_fence_rep, struct drm_vmw_rect *vclips, uint32_t num_clips) { struct vmw_dma_buffer *buf = container_of(vfb, struct vmw_framebuffer_dmabuf, base)->buffer; struct vmw_kms_dirty dirty; int ret; ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, true, false); if (ret) return ret; ret = do_dmabuf_define_gmrfb(dev_priv, vfb); if (unlikely(ret != 0)) goto out_revert; dirty.fifo_commit = vmw_sou_readback_fifo_commit; dirty.clip = vmw_sou_readback_clip; dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_readback_blit) * num_clips; ret = vmw_kms_helper_dirty(dev_priv, vfb, NULL, vclips, 0, 0, num_clips, 1, &dirty); vmw_kms_helper_buffer_finish(dev_priv, file_priv, buf, NULL, user_fence_rep); return ret; out_revert: vmw_kms_helper_buffer_revert(buf); return ret; }