// SPDX-License-Identifier: GPL-2.0 OR MIT /************************************************************************** * * Copyright (c) 2009-2025 Broadcom. All Rights Reserved. The term * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * **************************************************************************/ #include "vmwgfx_kms.h" #include "vmwgfx_bo.h" #include "vmwgfx_resource_priv.h" #include "vmwgfx_vkms.h" #include "vmw_surface_cache.h" #include #include #include #include #include #include #include void vmw_du_init(struct vmw_display_unit *du) { vmw_vkms_crtc_init(&du->crtc); } void vmw_du_cleanup(struct vmw_display_unit *du) { struct vmw_private *dev_priv = vmw_priv(du->primary.dev); vmw_vkms_crtc_cleanup(&du->crtc); drm_plane_cleanup(&du->primary); if (vmw_cmd_supported(dev_priv)) drm_plane_cleanup(&du->cursor.base); drm_connector_unregister(&du->connector); drm_crtc_cleanup(&du->crtc); drm_encoder_cleanup(&du->encoder); drm_connector_cleanup(&du->connector); } void vmw_du_primary_plane_destroy(struct drm_plane *plane) { drm_plane_cleanup(plane); /* Planes are static in our case so we don't free it */ } /** * vmw_du_plane_unpin_surf - unpins resource associated with a framebuffer surface * * @vps: plane state associated with the display surface */ void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps) { struct vmw_surface *surf = vmw_user_object_surface(&vps->uo); if (surf) { if (vps->pinned) { vmw_resource_unpin(&surf->res); vps->pinned--; } } } /** * vmw_du_plane_cleanup_fb - Unpins the plane surface * * @plane: display plane * @old_state: Contains the FB to clean up * * Unpins the framebuffer surface * * Returns 0 on success */ void vmw_du_plane_cleanup_fb(struct drm_plane *plane, struct drm_plane_state *old_state) { struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state); vmw_du_plane_unpin_surf(vps); } /** * vmw_du_primary_plane_atomic_check - check if the new state is okay * * @plane: display plane * @state: info on the new plane state, including the FB * * Check if the new state is settable given the current state. Other * than what the atomic helper checks, we care about crtc fitting * the FB and maintaining one active framebuffer. * * Returns 0 on success */ int vmw_du_primary_plane_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state) { struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane); struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane); struct drm_crtc_state *crtc_state = NULL; struct drm_framebuffer *new_fb = new_state->fb; struct drm_framebuffer *old_fb = old_state->fb; int ret; /* * Ignore damage clips if the framebuffer attached to the plane's state * has changed since the last plane update (page-flip). In this case, a * full plane update should happen because uploads are done per-buffer. */ if (old_fb != new_fb) new_state->ignore_damage_clips = true; if (new_state->crtc) crtc_state = drm_atomic_get_new_crtc_state(state, new_state->crtc); ret = drm_atomic_helper_check_plane_state(new_state, crtc_state, DRM_PLANE_NO_SCALING, DRM_PLANE_NO_SCALING, false, true); return ret; } int vmw_du_crtc_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *state) { struct vmw_private *vmw = vmw_priv(crtc->dev); struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state, crtc); struct vmw_display_unit *du = vmw_crtc_to_du(new_state->crtc); int connector_mask = drm_connector_mask(&du->connector); bool has_primary = new_state->plane_mask & drm_plane_mask(crtc->primary); /* * This is fine in general, but broken userspace might expect * some actual rendering so give a clue as why it's blank. */ if (new_state->enable && !has_primary) drm_dbg_driver(&vmw->drm, "CRTC without a primary plane will be blank.\n"); if (new_state->connector_mask != connector_mask && new_state->connector_mask != 0) { DRM_ERROR("Invalid connectors configuration\n"); return -EINVAL; } /* * Our virtual device does not have a dot clock, so use the logical * clock value as the dot clock. */ if (new_state->mode.crtc_clock == 0) new_state->adjusted_mode.crtc_clock = new_state->mode.clock; return 0; } void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc, struct drm_atomic_state *state) { vmw_vkms_crtc_atomic_begin(crtc, state); } /** * vmw_du_crtc_duplicate_state - duplicate crtc state * @crtc: DRM crtc * * Allocates and returns a copy of the crtc state (both common and * vmw-specific) for the specified crtc. * * Returns: The newly allocated crtc state, or NULL on failure. */ struct drm_crtc_state * vmw_du_crtc_duplicate_state(struct drm_crtc *crtc) { struct drm_crtc_state *state; struct vmw_crtc_state *vcs; if (WARN_ON(!crtc->state)) return NULL; vcs = kmemdup(crtc->state, sizeof(*vcs), GFP_KERNEL); if (!vcs) return NULL; state = &vcs->base; __drm_atomic_helper_crtc_duplicate_state(crtc, state); return state; } /** * vmw_du_crtc_reset - creates a blank vmw crtc state * @crtc: DRM crtc * * Resets the atomic state for @crtc by freeing the state pointer (which * might be NULL, e.g. at driver load time) and allocating a new empty state * object. */ void vmw_du_crtc_reset(struct drm_crtc *crtc) { struct vmw_crtc_state *vcs; if (crtc->state) { __drm_atomic_helper_crtc_destroy_state(crtc->state); kfree(vmw_crtc_state_to_vcs(crtc->state)); } vcs = kzalloc(sizeof(*vcs), GFP_KERNEL); if (!vcs) { DRM_ERROR("Cannot allocate vmw_crtc_state\n"); return; } __drm_atomic_helper_crtc_reset(crtc, &vcs->base); } /** * vmw_du_crtc_destroy_state - destroy crtc state * @crtc: DRM crtc * @state: state object to destroy * * Destroys the crtc state (both common and vmw-specific) for the * specified plane. */ void vmw_du_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state) { drm_atomic_helper_crtc_destroy_state(crtc, state); } /** * vmw_du_plane_duplicate_state - duplicate plane state * @plane: drm plane * * Allocates and returns a copy of the plane state (both common and * vmw-specific) for the specified plane. * * Returns: The newly allocated plane state, or NULL on failure. */ struct drm_plane_state * vmw_du_plane_duplicate_state(struct drm_plane *plane) { struct drm_plane_state *state; struct vmw_plane_state *vps; vps = kmemdup(plane->state, sizeof(*vps), GFP_KERNEL); if (!vps) return NULL; vps->pinned = 0; vps->cpp = 0; vps->cursor.mob = NULL; /* Each ref counted resource needs to be acquired again */ vmw_user_object_ref(&vps->uo); state = &vps->base; __drm_atomic_helper_plane_duplicate_state(plane, state); return state; } /** * vmw_du_plane_reset - creates a blank vmw plane state * @plane: drm plane * * Resets the atomic state for @plane by freeing the state pointer (which might * be NULL, e.g. at driver load time) and allocating a new empty state object. */ void vmw_du_plane_reset(struct drm_plane *plane) { struct vmw_plane_state *vps; if (plane->state) vmw_du_plane_destroy_state(plane, plane->state); vps = kzalloc(sizeof(*vps), GFP_KERNEL); if (!vps) { DRM_ERROR("Cannot allocate vmw_plane_state\n"); return; } __drm_atomic_helper_plane_reset(plane, &vps->base); } /** * vmw_du_plane_destroy_state - destroy plane state * @plane: DRM plane * @state: state object to destroy * * Destroys the plane state (both common and vmw-specific) for the * specified plane. */ void vmw_du_plane_destroy_state(struct drm_plane *plane, struct drm_plane_state *state) { struct vmw_plane_state *vps = vmw_plane_state_to_vps(state); /* Should have been freed by cleanup_fb */ vmw_user_object_unref(&vps->uo); drm_atomic_helper_plane_destroy_state(plane, state); } /** * vmw_du_connector_duplicate_state - duplicate connector state * @connector: DRM connector * * Allocates and returns a copy of the connector state (both common and * vmw-specific) for the specified connector. * * Returns: The newly allocated connector state, or NULL on failure. */ struct drm_connector_state * vmw_du_connector_duplicate_state(struct drm_connector *connector) { struct drm_connector_state *state; struct vmw_connector_state *vcs; if (WARN_ON(!connector->state)) return NULL; vcs = kmemdup(connector->state, sizeof(*vcs), GFP_KERNEL); if (!vcs) return NULL; state = &vcs->base; __drm_atomic_helper_connector_duplicate_state(connector, state); return state; } /** * vmw_du_connector_reset - creates a blank vmw connector state * @connector: DRM connector * * Resets the atomic state for @connector by freeing the state pointer (which * might be NULL, e.g. at driver load time) and allocating a new empty state * object. */ void vmw_du_connector_reset(struct drm_connector *connector) { struct vmw_connector_state *vcs; if (connector->state) { __drm_atomic_helper_connector_destroy_state(connector->state); kfree(vmw_connector_state_to_vcs(connector->state)); } vcs = kzalloc(sizeof(*vcs), GFP_KERNEL); if (!vcs) { DRM_ERROR("Cannot allocate vmw_connector_state\n"); return; } __drm_atomic_helper_connector_reset(connector, &vcs->base); } /** * vmw_du_connector_destroy_state - destroy connector state * @connector: DRM connector * @state: state object to destroy * * Destroys the connector state (both common and vmw-specific) for the * specified plane. */ void vmw_du_connector_destroy_state(struct drm_connector *connector, struct drm_connector_state *state) { drm_atomic_helper_connector_destroy_state(connector, state); } /* * Generic framebuffer code */ /* * Surface framebuffer code */ static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer) { struct vmw_framebuffer_surface *vfbs = vmw_framebuffer_to_vfbs(framebuffer); struct vmw_bo *bo = vmw_user_object_buffer(&vfbs->uo); struct vmw_surface *surf = vmw_user_object_surface(&vfbs->uo); if (bo) { vmw_bo_dirty_release(bo); /* * bo->dirty is reference counted so it being NULL * means that the surface wasn't coherent to begin * with and so we have to free the dirty tracker * in the vmw_resource */ if (!bo->dirty && surf && surf->res.dirty) surf->res.func->dirty_free(&surf->res); } drm_framebuffer_cleanup(framebuffer); vmw_user_object_unref(&vfbs->uo); kfree(vfbs); } /** * vmw_kms_readback - Perform a readback from the screen system to * a buffer-object 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 buffer-object backed framebuffer. * @user_fence_rep: User-space provided structure for fence information. * Must be set to non-NULL if @file_priv is non-NULL. * @vclips: Array of clip rects. * @num_clips: Number of clip rects in @vclips. * * Returns 0 on success, negative error code on failure. -ERESTARTSYS if * interrupted. */ int vmw_kms_readback(struct vmw_private *dev_priv, struct drm_file *file_priv, struct vmw_framebuffer *vfb, struct drm_vmw_fence_rep __user *user_fence_rep, struct drm_vmw_rect *vclips, uint32_t num_clips) { switch (dev_priv->active_display_unit) { case vmw_du_screen_object: return vmw_kms_sou_readback(dev_priv, file_priv, vfb, user_fence_rep, vclips, num_clips, NULL); case vmw_du_screen_target: return vmw_kms_stdu_readback(dev_priv, file_priv, vfb, user_fence_rep, NULL, vclips, num_clips, 1, NULL); default: WARN_ONCE(true, "Readback called with invalid display system.\n"); } return -ENOSYS; } static int vmw_framebuffer_surface_create_handle(struct drm_framebuffer *fb, struct drm_file *file_priv, unsigned int *handle) { struct vmw_framebuffer_surface *vfbs = vmw_framebuffer_to_vfbs(fb); struct vmw_bo *bo = vmw_user_object_buffer(&vfbs->uo); if (WARN_ON(!bo)) return -EINVAL; return drm_gem_handle_create(file_priv, &bo->tbo.base, handle); } static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = { .create_handle = vmw_framebuffer_surface_create_handle, .destroy = vmw_framebuffer_surface_destroy, .dirty = drm_atomic_helper_dirtyfb, }; static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv, struct vmw_user_object *uo, struct vmw_framebuffer **out, const struct drm_mode_fb_cmd2 *mode_cmd) { struct drm_device *dev = &dev_priv->drm; struct vmw_framebuffer_surface *vfbs; struct vmw_surface *surface; int ret; /* 3D is only supported on HWv8 and newer hosts */ if (dev_priv->active_display_unit == vmw_du_legacy) return -ENOSYS; surface = vmw_user_object_surface(uo); /* * Sanity checks. */ if (!drm_any_plane_has_format(&dev_priv->drm, mode_cmd->pixel_format, mode_cmd->modifier[0])) { drm_dbg(&dev_priv->drm, "unsupported pixel format %p4cc / modifier 0x%llx\n", &mode_cmd->pixel_format, mode_cmd->modifier[0]); return -EINVAL; } /* Surface must be marked as a scanout. */ if (unlikely(!surface->metadata.scanout)) return -EINVAL; if (unlikely(surface->metadata.mip_levels[0] != 1 || surface->metadata.num_sizes != 1 || surface->metadata.base_size.width < mode_cmd->width || surface->metadata.base_size.height < mode_cmd->height || surface->metadata.base_size.depth != 1)) { DRM_ERROR("Incompatible surface dimensions " "for requested mode.\n"); return -EINVAL; } vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL); if (!vfbs) { ret = -ENOMEM; goto out_err1; } drm_helper_mode_fill_fb_struct(dev, &vfbs->base.base, mode_cmd); memcpy(&vfbs->uo, uo, sizeof(vfbs->uo)); vmw_user_object_ref(&vfbs->uo); *out = &vfbs->base; ret = drm_framebuffer_init(dev, &vfbs->base.base, &vmw_framebuffer_surface_funcs); if (ret) goto out_err2; return 0; out_err2: vmw_user_object_unref(&vfbs->uo); kfree(vfbs); out_err1: return ret; } /* * Buffer-object framebuffer code */ static int vmw_framebuffer_bo_create_handle(struct drm_framebuffer *fb, struct drm_file *file_priv, unsigned int *handle) { struct vmw_framebuffer_bo *vfbd = vmw_framebuffer_to_vfbd(fb); return drm_gem_handle_create(file_priv, &vfbd->buffer->tbo.base, handle); } static void vmw_framebuffer_bo_destroy(struct drm_framebuffer *framebuffer) { struct vmw_framebuffer_bo *vfbd = vmw_framebuffer_to_vfbd(framebuffer); vmw_bo_dirty_release(vfbd->buffer); drm_framebuffer_cleanup(framebuffer); vmw_bo_unreference(&vfbd->buffer); kfree(vfbd); } static const struct drm_framebuffer_funcs vmw_framebuffer_bo_funcs = { .create_handle = vmw_framebuffer_bo_create_handle, .destroy = vmw_framebuffer_bo_destroy, .dirty = drm_atomic_helper_dirtyfb, }; static int vmw_kms_new_framebuffer_bo(struct vmw_private *dev_priv, struct vmw_bo *bo, struct vmw_framebuffer **out, const struct drm_mode_fb_cmd2 *mode_cmd) { struct drm_device *dev = &dev_priv->drm; struct vmw_framebuffer_bo *vfbd; unsigned int requested_size; int ret; requested_size = mode_cmd->height * mode_cmd->pitches[0]; if (unlikely(requested_size > bo->tbo.base.size)) { DRM_ERROR("Screen buffer object size is too small " "for requested mode.\n"); return -EINVAL; } if (!drm_any_plane_has_format(&dev_priv->drm, mode_cmd->pixel_format, mode_cmd->modifier[0])) { drm_dbg(&dev_priv->drm, "unsupported pixel format %p4cc / modifier 0x%llx\n", &mode_cmd->pixel_format, mode_cmd->modifier[0]); return -EINVAL; } vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL); if (!vfbd) { ret = -ENOMEM; goto out_err1; } vfbd->base.base.obj[0] = &bo->tbo.base; drm_helper_mode_fill_fb_struct(dev, &vfbd->base.base, mode_cmd); vfbd->base.bo = true; vfbd->buffer = vmw_bo_reference(bo); *out = &vfbd->base; ret = drm_framebuffer_init(dev, &vfbd->base.base, &vmw_framebuffer_bo_funcs); if (ret) goto out_err2; return 0; out_err2: vmw_bo_unreference(&bo); kfree(vfbd); out_err1: return ret; } /** * vmw_kms_srf_ok - check if a surface can be created * * @dev_priv: Pointer to device private struct. * @width: requested width * @height: requested height * * Surfaces need to be less than texture size */ static bool vmw_kms_srf_ok(struct vmw_private *dev_priv, uint32_t width, uint32_t height) { if (width > dev_priv->texture_max_width || height > dev_priv->texture_max_height) return false; return true; } /** * vmw_kms_new_framebuffer - Create a new framebuffer. * * @dev_priv: Pointer to device private struct. * @uo: Pointer to user object to wrap the kms framebuffer around. * Either the buffer or surface inside the user object must be NULL. * @mode_cmd: Frame-buffer metadata. */ struct vmw_framebuffer * vmw_kms_new_framebuffer(struct vmw_private *dev_priv, struct vmw_user_object *uo, const struct drm_mode_fb_cmd2 *mode_cmd) { struct vmw_framebuffer *vfb = NULL; int ret; /* Create the new framebuffer depending one what we have */ if (vmw_user_object_surface(uo)) { ret = vmw_kms_new_framebuffer_surface(dev_priv, uo, &vfb, mode_cmd); } else if (uo->buffer) { ret = vmw_kms_new_framebuffer_bo(dev_priv, uo->buffer, &vfb, mode_cmd); } else { BUG(); } if (ret) return ERR_PTR(ret); return vfb; } /* * Generic Kernel modesetting functions */ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev, struct drm_file *file_priv, const struct drm_mode_fb_cmd2 *mode_cmd) { struct vmw_private *dev_priv = vmw_priv(dev); struct vmw_framebuffer *vfb = NULL; struct vmw_user_object uo = {0}; struct vmw_bo *bo; struct vmw_surface *surface; int ret; /* returns either a bo or surface */ ret = vmw_user_object_lookup(dev_priv, file_priv, mode_cmd->handles[0], &uo); if (ret) { DRM_ERROR("Invalid buffer object handle %u (0x%x).\n", mode_cmd->handles[0], mode_cmd->handles[0]); goto err_out; } if (vmw_user_object_surface(&uo) && !vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height)) { DRM_ERROR("Surface size cannot exceed %dx%d\n", dev_priv->texture_max_width, dev_priv->texture_max_height); ret = -EINVAL; goto err_out; } vfb = vmw_kms_new_framebuffer(dev_priv, &uo, mode_cmd); if (IS_ERR(vfb)) { ret = PTR_ERR(vfb); goto err_out; } err_out: bo = vmw_user_object_buffer(&uo); surface = vmw_user_object_surface(&uo); /* vmw_user_object_lookup takes one ref so does new_fb */ vmw_user_object_unref(&uo); if (ret) { DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret); return ERR_PTR(ret); } ttm_bo_reserve(&bo->tbo, false, false, NULL); ret = vmw_bo_dirty_add(bo); if (!ret && surface && surface->res.func->dirty_alloc) { surface->res.coherent = true; ret = surface->res.func->dirty_alloc(&surface->res); } ttm_bo_unreserve(&bo->tbo); return &vfb->base; } /** * vmw_kms_check_display_memory - Validates display memory required for a * topology * @dev: DRM device * @num_rects: number of drm_rect in rects * @rects: array of drm_rect representing the topology to validate indexed by * crtc index. * * Returns: * 0 on success otherwise negative error code */ static int vmw_kms_check_display_memory(struct drm_device *dev, uint32_t num_rects, struct drm_rect *rects) { struct vmw_private *dev_priv = vmw_priv(dev); struct drm_rect bounding_box = {0}; u64 total_pixels = 0, pixel_mem, bb_mem; int i; for (i = 0; i < num_rects; i++) { /* * For STDU only individual screen (screen target) is limited by * SCREENTARGET_MAX_WIDTH/HEIGHT registers. */ if (dev_priv->active_display_unit == vmw_du_screen_target && (drm_rect_width(&rects[i]) > dev_priv->stdu_max_width || drm_rect_height(&rects[i]) > dev_priv->stdu_max_height)) { VMW_DEBUG_KMS("Screen size not supported.\n"); return -EINVAL; } /* Bounding box upper left is at (0,0). */ if (rects[i].x2 > bounding_box.x2) bounding_box.x2 = rects[i].x2; if (rects[i].y2 > bounding_box.y2) bounding_box.y2 = rects[i].y2; total_pixels += (u64) drm_rect_width(&rects[i]) * (u64) drm_rect_height(&rects[i]); } /* Virtual svga device primary limits are always in 32-bpp. */ pixel_mem = total_pixels * 4; /* * For HV10 and below prim_bb_mem is vram size. When * SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM is not present vram size is * limit on primary bounding box */ if (pixel_mem > dev_priv->max_primary_mem) { VMW_DEBUG_KMS("Combined output size too large.\n"); return -EINVAL; } /* SVGA_CAP_NO_BB_RESTRICTION is available for STDU only. */ if (dev_priv->active_display_unit != vmw_du_screen_target || !(dev_priv->capabilities & SVGA_CAP_NO_BB_RESTRICTION)) { bb_mem = (u64) bounding_box.x2 * bounding_box.y2 * 4; if (bb_mem > dev_priv->max_primary_mem) { VMW_DEBUG_KMS("Topology is beyond supported limits.\n"); return -EINVAL; } } return 0; } /** * vmw_crtc_state_and_lock - Return new or current crtc state with locked * crtc mutex * @state: The atomic state pointer containing the new atomic state * @crtc: The crtc * * This function returns the new crtc state if it's part of the state update. * Otherwise returns the current crtc state. It also makes sure that the * crtc mutex is locked. * * Returns: A valid crtc state pointer or NULL. It may also return a * pointer error, in particular -EDEADLK if locking needs to be rerun. */ static struct drm_crtc_state * vmw_crtc_state_and_lock(struct drm_atomic_state *state, struct drm_crtc *crtc) { struct drm_crtc_state *crtc_state; crtc_state = drm_atomic_get_new_crtc_state(state, crtc); if (crtc_state) { lockdep_assert_held(&crtc->mutex.mutex.base); } else { int ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx); if (ret != 0 && ret != -EALREADY) return ERR_PTR(ret); crtc_state = crtc->state; } return crtc_state; } /** * vmw_kms_check_implicit - Verify that all implicit display units scan out * from the same fb after the new state is committed. * @dev: The drm_device. * @state: The new state to be checked. * * Returns: * Zero on success, * -EINVAL on invalid state, * -EDEADLK if modeset locking needs to be rerun. */ static int vmw_kms_check_implicit(struct drm_device *dev, struct drm_atomic_state *state) { struct drm_framebuffer *implicit_fb = NULL; struct drm_crtc *crtc; struct drm_crtc_state *crtc_state; struct drm_plane_state *plane_state; drm_for_each_crtc(crtc, dev) { struct vmw_display_unit *du = vmw_crtc_to_du(crtc); if (!du->is_implicit) continue; crtc_state = vmw_crtc_state_and_lock(state, crtc); if (IS_ERR(crtc_state)) return PTR_ERR(crtc_state); if (!crtc_state || !crtc_state->enable) continue; /* * Can't move primary planes across crtcs, so this is OK. * It also means we don't need to take the plane mutex. */ plane_state = du->primary.state; if (plane_state->crtc != crtc) continue; if (!implicit_fb) implicit_fb = plane_state->fb; else if (implicit_fb != plane_state->fb) return -EINVAL; } return 0; } /** * vmw_kms_check_topology - Validates topology in drm_atomic_state * @dev: DRM device * @state: the driver state object * * Returns: * 0 on success otherwise negative error code */ static int vmw_kms_check_topology(struct drm_device *dev, struct drm_atomic_state *state) { struct drm_crtc_state *old_crtc_state, *new_crtc_state; struct drm_rect *rects; struct drm_crtc *crtc; uint32_t i; int ret = 0; rects = kcalloc(dev->mode_config.num_crtc, sizeof(struct drm_rect), GFP_KERNEL); if (!rects) return -ENOMEM; drm_for_each_crtc(crtc, dev) { struct vmw_display_unit *du = vmw_crtc_to_du(crtc); struct drm_crtc_state *crtc_state; i = drm_crtc_index(crtc); crtc_state = vmw_crtc_state_and_lock(state, crtc); if (IS_ERR(crtc_state)) { ret = PTR_ERR(crtc_state); goto clean; } if (!crtc_state) continue; if (crtc_state->enable) { rects[i].x1 = du->gui_x; rects[i].y1 = du->gui_y; rects[i].x2 = du->gui_x + crtc_state->mode.hdisplay; rects[i].y2 = du->gui_y + crtc_state->mode.vdisplay; } else { rects[i].x1 = 0; rects[i].y1 = 0; rects[i].x2 = 0; rects[i].y2 = 0; } } /* Determine change to topology due to new atomic state */ for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { struct vmw_display_unit *du = vmw_crtc_to_du(crtc); struct drm_connector *connector; struct drm_connector_state *conn_state; struct vmw_connector_state *vmw_conn_state; if (!du->pref_active && new_crtc_state->enable) { VMW_DEBUG_KMS("Enabling a disabled display unit\n"); ret = -EINVAL; goto clean; } /* * For vmwgfx each crtc has only one connector attached and it * is not changed so don't really need to check the * crtc->connector_mask and iterate over it. */ connector = &du->connector; conn_state = drm_atomic_get_connector_state(state, connector); if (IS_ERR(conn_state)) { ret = PTR_ERR(conn_state); goto clean; } vmw_conn_state = vmw_connector_state_to_vcs(conn_state); vmw_conn_state->gui_x = du->gui_x; vmw_conn_state->gui_y = du->gui_y; } ret = vmw_kms_check_display_memory(dev, dev->mode_config.num_crtc, rects); clean: kfree(rects); return ret; } /** * vmw_kms_atomic_check_modeset- validate state object for modeset changes * * @dev: DRM device * @state: the driver state object * * This is a simple wrapper around drm_atomic_helper_check_modeset() for * us to assign a value to mode->crtc_clock so that * drm_calc_timestamping_constants() won't throw an error message * * Returns: * Zero for success or -errno */ static int vmw_kms_atomic_check_modeset(struct drm_device *dev, struct drm_atomic_state *state) { struct drm_crtc *crtc; struct drm_crtc_state *crtc_state; bool need_modeset = false; int i, ret; ret = drm_atomic_helper_check(dev, state); if (ret) return ret; ret = vmw_kms_check_implicit(dev, state); if (ret) { VMW_DEBUG_KMS("Invalid implicit state\n"); return ret; } for_each_new_crtc_in_state(state, crtc, crtc_state, i) { if (drm_atomic_crtc_needs_modeset(crtc_state)) need_modeset = true; } if (need_modeset) return vmw_kms_check_topology(dev, state); return ret; } static const struct drm_mode_config_funcs vmw_kms_funcs = { .fb_create = vmw_kms_fb_create, .atomic_check = vmw_kms_atomic_check_modeset, .atomic_commit = drm_atomic_helper_commit, }; static int vmw_kms_generic_present(struct vmw_private *dev_priv, struct drm_file *file_priv, struct vmw_framebuffer *vfb, struct vmw_surface *surface, uint32_t sid, int32_t destX, int32_t destY, struct drm_vmw_rect *clips, uint32_t num_clips) { return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips, &surface->res, destX, destY, num_clips, 1, NULL, NULL); } int vmw_kms_present(struct vmw_private *dev_priv, struct drm_file *file_priv, struct vmw_framebuffer *vfb, struct vmw_surface *surface, uint32_t sid, int32_t destX, int32_t destY, struct drm_vmw_rect *clips, uint32_t num_clips) { int ret; switch (dev_priv->active_display_unit) { case vmw_du_screen_target: ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips, &surface->res, destX, destY, num_clips, 1, NULL, NULL); break; case vmw_du_screen_object: ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface, sid, destX, destY, clips, num_clips); break; default: WARN_ONCE(true, "Present called with invalid display system.\n"); ret = -ENOSYS; break; } if (ret) return ret; vmw_cmd_flush(dev_priv, false); return 0; } static void vmw_kms_create_hotplug_mode_update_property(struct vmw_private *dev_priv) { if (dev_priv->hotplug_mode_update_property) return; dev_priv->hotplug_mode_update_property = drm_property_create_range(&dev_priv->drm, DRM_MODE_PROP_IMMUTABLE, "hotplug_mode_update", 0, 1); } static void vmw_atomic_commit_tail(struct drm_atomic_state *old_state) { struct vmw_private *vmw = vmw_priv(old_state->dev); struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state; int i; drm_atomic_helper_commit_tail(old_state); if (vmw->vkms_enabled) { for_each_old_crtc_in_state(old_state, crtc, old_crtc_state, i) { struct vmw_display_unit *du = vmw_crtc_to_du(crtc); (void)old_crtc_state; flush_work(&du->vkms.crc_generator_work); } } } static const struct drm_mode_config_helper_funcs vmw_mode_config_helpers = { .atomic_commit_tail = vmw_atomic_commit_tail, }; int vmw_kms_init(struct vmw_private *dev_priv) { struct drm_device *dev = &dev_priv->drm; int ret; static const char *display_unit_names[] = { "Invalid", "Legacy", "Screen Object", "Screen Target", "Invalid (max)" }; drm_mode_config_init(dev); dev->mode_config.funcs = &vmw_kms_funcs; dev->mode_config.min_width = 1; dev->mode_config.min_height = 1; dev->mode_config.max_width = dev_priv->texture_max_width; dev->mode_config.max_height = dev_priv->texture_max_height; dev->mode_config.preferred_depth = dev_priv->assume_16bpp ? 16 : 32; dev->mode_config.helper_private = &vmw_mode_config_helpers; drm_mode_create_suggested_offset_properties(dev); vmw_kms_create_hotplug_mode_update_property(dev_priv); ret = vmw_kms_stdu_init_display(dev_priv); if (ret) { ret = vmw_kms_sou_init_display(dev_priv); if (ret) /* Fallback */ ret = vmw_kms_ldu_init_display(dev_priv); } BUILD_BUG_ON(ARRAY_SIZE(display_unit_names) != (vmw_du_max + 1)); drm_info(&dev_priv->drm, "%s display unit initialized\n", display_unit_names[dev_priv->active_display_unit]); return ret; } int vmw_kms_close(struct vmw_private *dev_priv) { int ret = 0; /* * Docs says we should take the lock before calling this function * but since it destroys encoders and our destructor calls * drm_encoder_cleanup which takes the lock we deadlock. */ drm_mode_config_cleanup(&dev_priv->drm); if (dev_priv->active_display_unit == vmw_du_legacy) ret = vmw_kms_ldu_close_display(dev_priv); return ret; } int vmw_kms_write_svga(struct vmw_private *vmw_priv, unsigned width, unsigned height, unsigned pitch, unsigned bpp, unsigned depth) { if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK) vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch); else if (vmw_fifo_have_pitchlock(vmw_priv)) vmw_fifo_mem_write(vmw_priv, SVGA_FIFO_PITCHLOCK, pitch); vmw_write(vmw_priv, SVGA_REG_WIDTH, width); vmw_write(vmw_priv, SVGA_REG_HEIGHT, height); if ((vmw_priv->capabilities & SVGA_CAP_8BIT_EMULATION) != 0) 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; } static bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv, u64 pitch, u64 height) { return (pitch * height) < (u64)dev_priv->vram_size; } /** * vmw_du_update_layout - Update the display unit with topology from resolution * plugin and generate DRM uevent * @dev_priv: device private * @num_rects: number of drm_rect in rects * @rects: toplogy to update */ static int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned int num_rects, struct drm_rect *rects) { struct drm_device *dev = &dev_priv->drm; struct vmw_display_unit *du; struct drm_connector *con; struct drm_connector_list_iter conn_iter; struct drm_modeset_acquire_ctx ctx; struct drm_crtc *crtc; int ret; /* Currently gui_x/y is protected with the crtc mutex */ mutex_lock(&dev->mode_config.mutex); drm_modeset_acquire_init(&ctx, 0); retry: drm_for_each_crtc(crtc, dev) { ret = drm_modeset_lock(&crtc->mutex, &ctx); if (ret < 0) { if (ret == -EDEADLK) { drm_modeset_backoff(&ctx); goto retry; } goto out_fini; } } drm_connector_list_iter_begin(dev, &conn_iter); drm_for_each_connector_iter(con, &conn_iter) { du = vmw_connector_to_du(con); if (num_rects > du->unit) { du->pref_width = drm_rect_width(&rects[du->unit]); du->pref_height = drm_rect_height(&rects[du->unit]); du->pref_active = true; du->gui_x = rects[du->unit].x1; du->gui_y = rects[du->unit].y1; } else { du->pref_width = VMWGFX_MIN_INITIAL_WIDTH; du->pref_height = VMWGFX_MIN_INITIAL_HEIGHT; du->pref_active = false; du->gui_x = 0; du->gui_y = 0; } } drm_connector_list_iter_end(&conn_iter); list_for_each_entry(con, &dev->mode_config.connector_list, head) { du = vmw_connector_to_du(con); if (num_rects > du->unit) { drm_object_property_set_value (&con->base, dev->mode_config.suggested_x_property, du->gui_x); drm_object_property_set_value (&con->base, dev->mode_config.suggested_y_property, du->gui_y); } else { drm_object_property_set_value (&con->base, dev->mode_config.suggested_x_property, 0); drm_object_property_set_value (&con->base, dev->mode_config.suggested_y_property, 0); } con->status = vmw_du_connector_detect(con, true); } out_fini: drm_modeset_drop_locks(&ctx); drm_modeset_acquire_fini(&ctx); mutex_unlock(&dev->mode_config.mutex); drm_sysfs_hotplug_event(dev); return 0; } int vmw_du_crtc_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b, uint32_t size, struct drm_modeset_acquire_ctx *ctx) { struct vmw_private *dev_priv = vmw_priv(crtc->dev); int i; for (i = 0; i < size; i++) { DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i, r[i], g[i], b[i]); vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8); vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8); vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8); } return 0; } int vmw_du_connector_dpms(struct drm_connector *connector, int mode) { return 0; } enum drm_connector_status vmw_du_connector_detect(struct drm_connector *connector, bool force) { uint32_t num_displays; struct drm_device *dev = connector->dev; struct vmw_private *dev_priv = vmw_priv(dev); struct vmw_display_unit *du = vmw_connector_to_du(connector); num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS); return ((vmw_connector_to_du(connector)->unit < num_displays && du->pref_active) ? connector_status_connected : connector_status_disconnected); } /** * vmw_guess_mode_timing - Provide fake timings for a * 60Hz vrefresh mode. * * @mode: Pointer to a struct drm_display_mode with hdisplay and vdisplay * members filled in. */ void vmw_guess_mode_timing(struct drm_display_mode *mode) { mode->hsync_start = mode->hdisplay + 50; mode->hsync_end = mode->hsync_start + 50; mode->htotal = mode->hsync_end + 50; mode->vsync_start = mode->vdisplay + 50; mode->vsync_end = mode->vsync_start + 50; mode->vtotal = mode->vsync_end + 50; mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6; } /** * vmw_kms_update_layout_ioctl - Handler for DRM_VMW_UPDATE_LAYOUT ioctl * @dev: drm device for the ioctl * @data: data pointer for the ioctl * @file_priv: drm file for the ioctl call * * Update preferred topology of display unit as per ioctl request. The topology * is expressed as array of drm_vmw_rect. * e.g. * [0 0 640 480] [640 0 800 600] [0 480 640 480] * * NOTE: * The x and y offset (upper left) in drm_vmw_rect cannot be less than 0. Beside * device limit on topology, x + w and y + h (lower right) cannot be greater * than INT_MAX. So topology beyond these limits will return with error. * * Returns: * Zero on success, negative errno on failure. */ 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_mode_config *mode_config = &dev->mode_config; struct drm_vmw_update_layout_arg *arg = (struct drm_vmw_update_layout_arg *)data; const void __user *user_rects; struct drm_vmw_rect *rects; struct drm_rect *drm_rects; unsigned rects_size; int ret, i; if (!arg->num_outputs) { struct drm_rect def_rect = {0, 0, VMWGFX_MIN_INITIAL_WIDTH, VMWGFX_MIN_INITIAL_HEIGHT}; vmw_du_update_layout(dev_priv, 1, &def_rect); return 0; } else if (arg->num_outputs > VMWGFX_NUM_DISPLAY_UNITS) { return -E2BIG; } rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect); rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect), GFP_KERNEL); if (unlikely(!rects)) return -ENOMEM; user_rects = (void __user *)(unsigned long)arg->rects; ret = copy_from_user(rects, user_rects, rects_size); if (unlikely(ret != 0)) { DRM_ERROR("Failed to get rects.\n"); ret = -EFAULT; goto out_free; } drm_rects = (struct drm_rect *)rects; VMW_DEBUG_KMS("Layout count = %u\n", arg->num_outputs); for (i = 0; i < arg->num_outputs; i++) { struct drm_vmw_rect curr_rect; /* Verify user-space for overflow as kernel use drm_rect */ if ((rects[i].x + rects[i].w > INT_MAX) || (rects[i].y + rects[i].h > INT_MAX)) { ret = -ERANGE; goto out_free; } curr_rect = rects[i]; drm_rects[i].x1 = curr_rect.x; drm_rects[i].y1 = curr_rect.y; drm_rects[i].x2 = curr_rect.x + curr_rect.w; drm_rects[i].y2 = curr_rect.y + curr_rect.h; VMW_DEBUG_KMS(" x1 = %d y1 = %d x2 = %d y2 = %d\n", drm_rects[i].x1, drm_rects[i].y1, drm_rects[i].x2, drm_rects[i].y2); /* * Currently this check is limiting the topology within * mode_config->max (which actually is max texture size * supported by virtual device). This limit is here to address * window managers that create a big framebuffer for whole * topology. */ if (drm_rects[i].x1 < 0 || drm_rects[i].y1 < 0 || drm_rects[i].x2 > mode_config->max_width || drm_rects[i].y2 > mode_config->max_height) { VMW_DEBUG_KMS("Invalid layout %d %d %d %d\n", drm_rects[i].x1, drm_rects[i].y1, drm_rects[i].x2, drm_rects[i].y2); ret = -EINVAL; goto out_free; } } ret = vmw_kms_check_display_memory(dev, arg->num_outputs, drm_rects); if (ret == 0) vmw_du_update_layout(dev_priv, arg->num_outputs, drm_rects); out_free: kfree(rects); return ret; } /** * vmw_kms_helper_dirty - Helper to build commands and perform actions based * on a set of cliprects and a set of display units. * * @dev_priv: Pointer to a device private structure. * @framebuffer: Pointer to the framebuffer on which to perform the actions. * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL. * Cliprects are given in framebuffer coordinates. * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must * be NULL. Cliprects are given in source coordinates. * @dest_x: X coordinate offset for the crtc / destination clip rects. * @dest_y: Y coordinate offset for the crtc / destination clip rects. * @num_clips: Number of cliprects in the @clips or @vclips array. * @increment: Integer with which to increment the clip counter when looping. * Used to skip a predetermined number of clip rects. * @dirty: Closure structure. See the description of struct vmw_kms_dirty. */ int vmw_kms_helper_dirty(struct vmw_private *dev_priv, struct vmw_framebuffer *framebuffer, const struct drm_clip_rect *clips, const struct drm_vmw_rect *vclips, s32 dest_x, s32 dest_y, int num_clips, int increment, struct vmw_kms_dirty *dirty) { struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS]; struct drm_crtc *crtc; u32 num_units = 0; u32 i, k; dirty->dev_priv = dev_priv; /* If crtc is passed, no need to iterate over other display units */ if (dirty->crtc) { units[num_units++] = vmw_crtc_to_du(dirty->crtc); } else { list_for_each_entry(crtc, &dev_priv->drm.mode_config.crtc_list, head) { struct drm_plane *plane = crtc->primary; if (plane->state->fb == &framebuffer->base) units[num_units++] = vmw_crtc_to_du(crtc); } } for (k = 0; k < num_units; k++) { struct vmw_display_unit *unit = units[k]; s32 crtc_x = unit->crtc.x; s32 crtc_y = unit->crtc.y; s32 crtc_width = unit->crtc.mode.hdisplay; s32 crtc_height = unit->crtc.mode.vdisplay; const struct drm_clip_rect *clips_ptr = clips; const struct drm_vmw_rect *vclips_ptr = vclips; dirty->unit = unit; if (dirty->fifo_reserve_size > 0) { dirty->cmd = VMW_CMD_RESERVE(dev_priv, dirty->fifo_reserve_size); if (!dirty->cmd) return -ENOMEM; memset(dirty->cmd, 0, dirty->fifo_reserve_size); } dirty->num_hits = 0; for (i = 0; i < num_clips; i++, clips_ptr += increment, vclips_ptr += increment) { s32 clip_left; s32 clip_top; /* * Select clip array type. Note that integer type * in @clips is unsigned short, whereas in @vclips * it's 32-bit. */ if (clips) { dirty->fb_x = (s32) clips_ptr->x1; dirty->fb_y = (s32) clips_ptr->y1; dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x - crtc_x; dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y - crtc_y; } else { dirty->fb_x = vclips_ptr->x; dirty->fb_y = vclips_ptr->y; dirty->unit_x2 = dirty->fb_x + vclips_ptr->w + dest_x - crtc_x; dirty->unit_y2 = dirty->fb_y + vclips_ptr->h + dest_y - crtc_y; } dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x; dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y; /* Skip this clip if it's outside the crtc region */ if (dirty->unit_x1 >= crtc_width || dirty->unit_y1 >= crtc_height || dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0) continue; /* Clip right and bottom to crtc limits */ dirty->unit_x2 = min_t(s32, dirty->unit_x2, crtc_width); dirty->unit_y2 = min_t(s32, dirty->unit_y2, crtc_height); /* Clip left and top to crtc limits */ clip_left = min_t(s32, dirty->unit_x1, 0); clip_top = min_t(s32, dirty->unit_y1, 0); dirty->unit_x1 -= clip_left; dirty->unit_y1 -= clip_top; dirty->fb_x -= clip_left; dirty->fb_y -= clip_top; dirty->clip(dirty); } dirty->fifo_commit(dirty); } return 0; } /** * vmw_kms_helper_validation_finish - Helper for post KMS command submission * cleanup and fencing * @dev_priv: Pointer to the device-private struct * @file_priv: Pointer identifying the client when user-space fencing is used * @ctx: Pointer to the validation context * @out_fence: If non-NULL, returned refcounted fence-pointer * @user_fence_rep: If non-NULL, pointer to user-space address area * in which to copy user-space fence info */ void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv, struct drm_file *file_priv, struct vmw_validation_context *ctx, struct vmw_fence_obj **out_fence, struct drm_vmw_fence_rep __user * user_fence_rep) { struct vmw_fence_obj *fence = NULL; uint32_t handle = 0; int ret = 0; if (file_priv || user_fence_rep || vmw_validation_has_bos(ctx) || out_fence) ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence, file_priv ? &handle : NULL); vmw_validation_done(ctx, fence); if (file_priv) vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), ret, user_fence_rep, fence, handle, -1); if (out_fence) *out_fence = fence; else vmw_fence_obj_unreference(&fence); } /** * vmw_kms_create_implicit_placement_property - Set up the implicit placement * property. * * @dev_priv: Pointer to a device private struct. * * Sets up the implicit placement property unless it's already set up. */ void vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv) { if (dev_priv->implicit_placement_property) return; dev_priv->implicit_placement_property = drm_property_create_range(&dev_priv->drm, DRM_MODE_PROP_IMMUTABLE, "implicit_placement", 0, 1); } /** * vmw_kms_suspend - Save modesetting state and turn modesetting off. * * @dev: Pointer to the drm device * Return: 0 on success. Negative error code on failure. */ int vmw_kms_suspend(struct drm_device *dev) { struct vmw_private *dev_priv = vmw_priv(dev); dev_priv->suspend_state = drm_atomic_helper_suspend(dev); if (IS_ERR(dev_priv->suspend_state)) { int ret = PTR_ERR(dev_priv->suspend_state); DRM_ERROR("Failed kms suspend: %d\n", ret); dev_priv->suspend_state = NULL; return ret; } return 0; } /** * vmw_kms_resume - Re-enable modesetting and restore state * * @dev: Pointer to the drm device * Return: 0 on success. Negative error code on failure. * * State is resumed from a previous vmw_kms_suspend(). It's illegal * to call this function without a previous vmw_kms_suspend(). */ int vmw_kms_resume(struct drm_device *dev) { struct vmw_private *dev_priv = vmw_priv(dev); int ret; if (WARN_ON(!dev_priv->suspend_state)) return 0; ret = drm_atomic_helper_resume(dev, dev_priv->suspend_state); dev_priv->suspend_state = NULL; return ret; } /** * vmw_kms_lost_device - Notify kms that modesetting capabilities will be lost * * @dev: Pointer to the drm device */ void vmw_kms_lost_device(struct drm_device *dev) { drm_atomic_helper_shutdown(dev); } /** * vmw_du_helper_plane_update - Helper to do plane update on a display unit. * @update: The closure structure. * * Call this helper after setting callbacks in &vmw_du_update_plane to do plane * update on display unit. * * Return: 0 on success or a negative error code on failure. */ int vmw_du_helper_plane_update(struct vmw_du_update_plane *update) { struct drm_plane_state *state = update->plane->state; struct drm_plane_state *old_state = update->old_state; struct drm_atomic_helper_damage_iter iter; struct drm_rect clip; struct drm_rect bb; DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); uint32_t reserved_size = 0; uint32_t submit_size = 0; uint32_t curr_size = 0; uint32_t num_hits = 0; void *cmd_start; char *cmd_next; int ret; /* * Iterate in advance to check if really need plane update and find the * number of clips that actually are in plane src for fifo allocation. */ drm_atomic_helper_damage_iter_init(&iter, old_state, state); drm_atomic_for_each_plane_damage(&iter, &clip) num_hits++; if (num_hits == 0) return 0; if (update->vfb->bo) { struct vmw_framebuffer_bo *vfbbo = container_of(update->vfb, typeof(*vfbbo), base); /* * For screen targets we want a mappable bo, for everything else we want * accelerated i.e. host backed (vram or gmr) bo. If the display unit * is not screen target then mob's shouldn't be available. */ if (update->dev_priv->active_display_unit == vmw_du_screen_target) { vmw_bo_placement_set(vfbbo->buffer, VMW_BO_DOMAIN_SYS | VMW_BO_DOMAIN_MOB | VMW_BO_DOMAIN_GMR, VMW_BO_DOMAIN_SYS | VMW_BO_DOMAIN_MOB | VMW_BO_DOMAIN_GMR); } else { WARN_ON(update->dev_priv->has_mob); vmw_bo_placement_set_default_accelerated(vfbbo->buffer); } ret = vmw_validation_add_bo(&val_ctx, vfbbo->buffer); } else { struct vmw_framebuffer_surface *vfbs = container_of(update->vfb, typeof(*vfbs), base); struct vmw_surface *surf = vmw_user_object_surface(&vfbs->uo); ret = vmw_validation_add_resource(&val_ctx, &surf->res, 0, VMW_RES_DIRTY_NONE, NULL, NULL); } if (ret) return ret; ret = vmw_validation_prepare(&val_ctx, update->mutex, update->intr); if (ret) goto out_unref; reserved_size = update->calc_fifo_size(update, num_hits); cmd_start = VMW_CMD_RESERVE(update->dev_priv, reserved_size); if (!cmd_start) { ret = -ENOMEM; goto out_revert; } cmd_next = cmd_start; if (update->post_prepare) { curr_size = update->post_prepare(update, cmd_next); cmd_next += curr_size; submit_size += curr_size; } if (update->pre_clip) { curr_size = update->pre_clip(update, cmd_next, num_hits); cmd_next += curr_size; submit_size += curr_size; } bb.x1 = INT_MAX; bb.y1 = INT_MAX; bb.x2 = INT_MIN; bb.y2 = INT_MIN; drm_atomic_helper_damage_iter_init(&iter, old_state, state); drm_atomic_for_each_plane_damage(&iter, &clip) { uint32_t fb_x = clip.x1; uint32_t fb_y = clip.y1; vmw_du_translate_to_crtc(state, &clip); if (update->clip) { curr_size = update->clip(update, cmd_next, &clip, fb_x, fb_y); cmd_next += curr_size; submit_size += curr_size; } bb.x1 = min_t(int, bb.x1, clip.x1); bb.y1 = min_t(int, bb.y1, clip.y1); bb.x2 = max_t(int, bb.x2, clip.x2); bb.y2 = max_t(int, bb.y2, clip.y2); } curr_size = update->post_clip(update, cmd_next, &bb); submit_size += curr_size; if (reserved_size < submit_size) submit_size = 0; vmw_cmd_commit(update->dev_priv, submit_size); vmw_kms_helper_validation_finish(update->dev_priv, NULL, &val_ctx, update->out_fence, NULL); return ret; out_revert: vmw_validation_revert(&val_ctx); out_unref: vmw_validation_unref_lists(&val_ctx); return ret; } /** * vmw_connector_mode_valid - implements drm_connector_helper_funcs.mode_valid callback * * @connector: the drm connector, part of a DU container * @mode: drm mode to check * * Returns MODE_OK on success, or a drm_mode_status error code. */ enum drm_mode_status vmw_connector_mode_valid(struct drm_connector *connector, const struct drm_display_mode *mode) { enum drm_mode_status ret; struct drm_device *dev = connector->dev; struct vmw_private *dev_priv = vmw_priv(dev); u32 assumed_cpp = 4; if (dev_priv->assume_16bpp) assumed_cpp = 2; ret = drm_mode_validate_size(mode, dev_priv->texture_max_width, dev_priv->texture_max_height); if (ret != MODE_OK) return ret; if (!vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * assumed_cpp, mode->vdisplay)) return MODE_MEM; return MODE_OK; } /** * vmw_connector_get_modes - implements drm_connector_helper_funcs.get_modes callback * * @connector: the drm connector, part of a DU container * * Returns the number of added modes. */ int vmw_connector_get_modes(struct drm_connector *connector) { 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 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) }; u32 max_width; u32 max_height; u32 num_modes; /* 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); drm_mode_set_name(mode); drm_mode_probed_add(connector, mode); drm_dbg_kms(dev, "preferred mode " DRM_MODE_FMT "\n", DRM_MODE_ARG(mode)); /* Probe connector for all modes not exceeding our geom limits */ max_width = dev_priv->texture_max_width; max_height = dev_priv->texture_max_height; if (dev_priv->active_display_unit == vmw_du_screen_target) { max_width = min(dev_priv->stdu_max_width, max_width); max_height = min(dev_priv->stdu_max_height, max_height); } num_modes = 1 + drm_add_modes_noedid(connector, max_width, max_height); return num_modes; } struct vmw_user_object *vmw_user_object_ref(struct vmw_user_object *uo) { if (uo->buffer) vmw_user_bo_ref(uo->buffer); else if (uo->surface) vmw_surface_reference(uo->surface); return uo; } void vmw_user_object_unref(struct vmw_user_object *uo) { if (uo->buffer) vmw_user_bo_unref(&uo->buffer); else if (uo->surface) vmw_surface_unreference(&uo->surface); } struct vmw_bo * vmw_user_object_buffer(struct vmw_user_object *uo) { if (uo->buffer) return uo->buffer; else if (uo->surface) return uo->surface->res.guest_memory_bo; return NULL; } struct vmw_surface * vmw_user_object_surface(struct vmw_user_object *uo) { if (uo->buffer) return uo->buffer->dumb_surface; return uo->surface; } void *vmw_user_object_map(struct vmw_user_object *uo) { struct vmw_bo *bo = vmw_user_object_buffer(uo); WARN_ON(!bo); return vmw_bo_map_and_cache(bo); } void *vmw_user_object_map_size(struct vmw_user_object *uo, size_t size) { struct vmw_bo *bo = vmw_user_object_buffer(uo); WARN_ON(!bo); return vmw_bo_map_and_cache_size(bo, size); } void vmw_user_object_unmap(struct vmw_user_object *uo) { struct vmw_bo *bo = vmw_user_object_buffer(uo); int ret; WARN_ON(!bo); /* Fence the mob creation so we are guarateed to have the mob */ ret = ttm_bo_reserve(&bo->tbo, false, false, NULL); if (ret != 0) return; vmw_bo_unmap(bo); vmw_bo_pin_reserved(bo, false); ttm_bo_unreserve(&bo->tbo); } bool vmw_user_object_is_mapped(struct vmw_user_object *uo) { struct vmw_bo *bo; if (!uo || vmw_user_object_is_null(uo)) return false; bo = vmw_user_object_buffer(uo); if (WARN_ON(!bo)) return false; WARN_ON(bo->map.bo && !bo->map.virtual); return bo->map.virtual; } bool vmw_user_object_is_null(struct vmw_user_object *uo) { return !uo->buffer && !uo->surface; }