1 // SPDX-License-Identifier: GPL-2.0 OR MIT
4  * Copyright 2007-2010 VMware, Inc., Palo Alto, CA., USA
20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
28  * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
47 static struct vmwgfx_gmrid_man *to_gmrid_manager(struct ttm_resource_manager *man)  in to_gmrid_manager()  argument
49 	return container_of(man, struct vmwgfx_gmrid_man, manager);  in to_gmrid_manager()
52 static int vmw_gmrid_man_get_node(struct ttm_resource_manager *man,  in vmw_gmrid_man_get_node()  argument
57 	struct vmwgfx_gmrid_man *gman = to_gmrid_manager(man);  in vmw_gmrid_man_get_node()
62 		return -ENOMEM;  in vmw_gmrid_man_get_node()
66 	id = ida_alloc_max(&gman->gmr_ida, gman->max_gmr_ids - 1, GFP_KERNEL);  in vmw_gmrid_man_get_node()
68 		ttm_resource_fini(man, *res);  in vmw_gmrid_man_get_node()
73 	spin_lock(&gman->lock);  in vmw_gmrid_man_get_node()
75 	if (gman->max_gmr_pages > 0) {  in vmw_gmrid_man_get_node()
76 		gman->used_gmr_pages += PFN_UP((*res)->size);  in vmw_gmrid_man_get_node()
84 		if (unlikely(gman->used_gmr_pages > gman->max_gmr_pages)) {  in vmw_gmrid_man_get_node()
91 			if (gman->max_gmr_pages > (max_graphics_pages / 2)) {  in vmw_gmrid_man_get_node()
95 				new_max_pages = gman->max_gmr_pages * 2;  in vmw_gmrid_man_get_node()
96 			if (new_max_pages > gman->max_gmr_pages && new_max_pages >= gman->used_gmr_pages) {  in vmw_gmrid_man_get_node()
98 					 ((new_max_pages) << (PAGE_SHIFT - 10)));  in vmw_gmrid_man_get_node()
100 				gman->max_gmr_pages = new_max_pages;  in vmw_gmrid_man_get_node()
105 					 ((gman->max_gmr_pages) << (PAGE_SHIFT - 10)));  in vmw_gmrid_man_get_node()
113 	(*res)->start = id;  in vmw_gmrid_man_get_node()
115 	spin_unlock(&gman->lock);  in vmw_gmrid_man_get_node()
119 	gman->used_gmr_pages -= PFN_UP((*res)->size);  in vmw_gmrid_man_get_node()
120 	spin_unlock(&gman->lock);  in vmw_gmrid_man_get_node()
121 	ida_free(&gman->gmr_ida, id);  in vmw_gmrid_man_get_node()
122 	ttm_resource_fini(man, *res);  in vmw_gmrid_man_get_node()
124 	return -ENOSPC;  in vmw_gmrid_man_get_node()
127 static void vmw_gmrid_man_put_node(struct ttm_resource_manager *man,  in vmw_gmrid_man_put_node()  argument
130 	struct vmwgfx_gmrid_man *gman = to_gmrid_manager(man);  in vmw_gmrid_man_put_node()
132 	ida_free(&gman->gmr_ida, res->start);  in vmw_gmrid_man_put_node()
133 	spin_lock(&gman->lock);  in vmw_gmrid_man_put_node()
134 	gman->used_gmr_pages -= PFN_UP(res->size);  in vmw_gmrid_man_put_node()
135 	spin_unlock(&gman->lock);  in vmw_gmrid_man_put_node()
136 	ttm_resource_fini(man, res);  in vmw_gmrid_man_put_node()
140 static void vmw_gmrid_man_debug(struct ttm_resource_manager *man,  in vmw_gmrid_man_debug()  argument
143 	struct vmwgfx_gmrid_man *gman = to_gmrid_manager(man);  in vmw_gmrid_man_debug()
145 	BUG_ON(gman->type != VMW_PL_GMR && gman->type != VMW_PL_MOB);  in vmw_gmrid_man_debug()
147 	drm_printf(printer, "%s's used: %u pages, max: %u pages, %u id's\n",  in vmw_gmrid_man_debug()
148 		   (gman->type == VMW_PL_MOB) ? "Mob" : "GMR",  in vmw_gmrid_man_debug()
149 		   gman->used_gmr_pages, gman->max_gmr_pages, gman->max_gmr_ids);  in vmw_gmrid_man_debug()
156 	struct ttm_resource_manager *man;  in vmw_gmrid_man_init()  local
161 		return -ENOMEM;  in vmw_gmrid_man_init()
163 	man = &gman->manager;  in vmw_gmrid_man_init()
165 	man->func = &vmw_gmrid_manager_func;  in vmw_gmrid_man_init()
166 	man->use_tt = true;  in vmw_gmrid_man_init()
167 	ttm_resource_manager_init(man, &dev_priv->bdev, 0);  in vmw_gmrid_man_init()
168 	spin_lock_init(&gman->lock);  in vmw_gmrid_man_init()
169 	gman->used_gmr_pages = 0;  in vmw_gmrid_man_init()
170 	ida_init(&gman->gmr_ida);  in vmw_gmrid_man_init()
171 	gman->type = type;  in vmw_gmrid_man_init()
175 		gman->max_gmr_ids = dev_priv->max_gmr_ids;  in vmw_gmrid_man_init()
176 		gman->max_gmr_pages = dev_priv->max_gmr_pages;  in vmw_gmrid_man_init()
179 		gman->max_gmr_ids = VMWGFX_NUM_MOB;  in vmw_gmrid_man_init()
180 		gman->max_gmr_pages = dev_priv->max_mob_pages;  in vmw_gmrid_man_init()
185 	ttm_set_driver_manager(&dev_priv->bdev, type, &gman->manager);  in vmw_gmrid_man_init()
186 	ttm_resource_manager_set_used(man, true);  in vmw_gmrid_man_init()
192 	struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, type);  in vmw_gmrid_man_fini()  local
193 	struct vmwgfx_gmrid_man *gman = to_gmrid_manager(man);  in vmw_gmrid_man_fini()
195 	ttm_resource_manager_set_used(man, false);  in vmw_gmrid_man_fini()
197 	ttm_resource_manager_evict_all(&dev_priv->bdev, man);  in vmw_gmrid_man_fini()
199 	ttm_resource_manager_cleanup(man);  in vmw_gmrid_man_fini()
201 	ttm_set_driver_manager(&dev_priv->bdev, type, NULL);  in vmw_gmrid_man_fini()
202 	ida_destroy(&gman->gmr_ida);  in vmw_gmrid_man_fini()