1/* 2 * Copyright © 2017 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 * 23 */ 24 25#include "i915_drv.h" 26#include "i915_gem_object.h" 27 28/** 29 * Mark up the object's coherency levels for a given cache_level 30 * @obj: #drm_i915_gem_object 31 * @cache_level: cache level 32 */ 33void i915_gem_object_set_cache_coherency(struct drm_i915_gem_object *obj, 34 unsigned int cache_level) 35{ 36 obj->cache_level = cache_level; 37 38 if (cache_level != I915_CACHE_NONE) 39 obj->cache_coherent = (I915_BO_CACHE_COHERENT_FOR_READ | 40 I915_BO_CACHE_COHERENT_FOR_WRITE); 41 else if (HAS_LLC(to_i915(obj->base.dev))) 42 obj->cache_coherent = I915_BO_CACHE_COHERENT_FOR_READ; 43 else 44 obj->cache_coherent = 0; 45 46 obj->cache_dirty = 47 !(obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_WRITE); 48} 49