1 /* 2 * Copyright 2014 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 <bskeggs@redhat.com> 23 */ 24 25 /******************************************************************************* 26 * NVIF client driver - NVKM directly linked 27 ******************************************************************************/ 28 29 #include <core/client.h> 30 #include <core/notify.h> 31 #include <core/ioctl.h> 32 33 #include <nvif/client.h> 34 #include <nvif/driver.h> 35 #include <nvif/notify.h> 36 #include <nvif/event.h> 37 #include <nvif/ioctl.h> 38 39 #include "nouveau_drv.h" 40 #include "nouveau_usif.h" 41 42 static void 43 nvkm_client_unmap(void *priv, void __iomem *ptr, u32 size) 44 { 45 iounmap(ptr); 46 } 47 48 static void __iomem * 49 nvkm_client_map(void *priv, u64 handle, u32 size) 50 { 51 return ioremap(handle, size); 52 } 53 54 static int 55 nvkm_client_ioctl(void *priv, bool super, void *data, u32 size, void **hack) 56 { 57 return nvkm_ioctl(priv, super, data, size, hack); 58 } 59 60 static int 61 nvkm_client_resume(void *priv) 62 { 63 struct nvkm_client *client = priv; 64 return nvkm_object_init(&client->object); 65 } 66 67 static int 68 nvkm_client_suspend(void *priv) 69 { 70 struct nvkm_client *client = priv; 71 return nvkm_object_fini(&client->object, true); 72 } 73 74 static int 75 nvkm_client_ntfy(const void *header, u32 length, const void *data, u32 size) 76 { 77 const union { 78 struct nvif_notify_req_v0 v0; 79 } *args = header; 80 u8 route; 81 82 if (length == sizeof(args->v0) && args->v0.version == 0) { 83 route = args->v0.route; 84 } else { 85 WARN_ON(1); 86 return NVKM_NOTIFY_DROP; 87 } 88 89 switch (route) { 90 case NVDRM_NOTIFY_NVIF: 91 return nvif_notify(header, length, data, size); 92 case NVDRM_NOTIFY_USIF: 93 return usif_notify(header, length, data, size); 94 default: 95 WARN_ON(1); 96 break; 97 } 98 99 return NVKM_NOTIFY_DROP; 100 } 101 102 static int 103 nvkm_client_driver_init(const char *name, u64 device, const char *cfg, 104 const char *dbg, void **ppriv) 105 { 106 return nvkm_client_new(name, device, cfg, dbg, nvkm_client_ntfy, 107 (struct nvkm_client **)ppriv); 108 } 109 110 const struct nvif_driver 111 nvif_driver_nvkm = { 112 .name = "nvkm", 113 .init = nvkm_client_driver_init, 114 .suspend = nvkm_client_suspend, 115 .resume = nvkm_client_resume, 116 .ioctl = nvkm_client_ioctl, 117 .map = nvkm_client_map, 118 .unmap = nvkm_client_unmap, 119 .keep = false, 120 }; 121