1/* 2 * Copyright 2011 Red Hat Inc. 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 shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 */ 24 25#include "drmP.h" 26#include "nouveau_drv.h" 27#include "nouveau_util.h" 28#include "nouveau_vm.h" 29#include "nouveau_ramht.h" 30 31struct nv98_crypt_engine { 32 struct nouveau_exec_engine base; 33}; 34 35static int 36nv98_crypt_fini(struct drm_device *dev, int engine, bool suspend) 37{ 38 if (!(nv_rd32(dev, 0x000200) & 0x00004000)) 39 return 0; 40 41 nv_mask(dev, 0x000200, 0x00004000, 0x00000000); 42 return 0; 43} 44 45static int 46nv98_crypt_init(struct drm_device *dev, int engine) 47{ 48 nv_mask(dev, 0x000200, 0x00004000, 0x00000000); 49 nv_mask(dev, 0x000200, 0x00004000, 0x00004000); 50 return 0; 51} 52 53static void 54nv98_crypt_destroy(struct drm_device *dev, int engine) 55{ 56 struct nv98_crypt_engine *pcrypt = nv_engine(dev, engine); 57 58 NVOBJ_ENGINE_DEL(dev, CRYPT); 59 60 kfree(pcrypt); 61} 62 63int 64nv98_crypt_create(struct drm_device *dev) 65{ 66 struct nv98_crypt_engine *pcrypt; 67 68 pcrypt = kzalloc(sizeof(*pcrypt), GFP_KERNEL); 69 if (!pcrypt) 70 return -ENOMEM; 71 72 pcrypt->base.destroy = nv98_crypt_destroy; 73 pcrypt->base.init = nv98_crypt_init; 74 pcrypt->base.fini = nv98_crypt_fini; 75 76 NVOBJ_ENGINE_ADD(dev, CRYPT, &pcrypt->base); 77 return 0; 78} 79