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/ioctl.h> 31 32 #include <nvif/client.h> 33 #include <nvif/driver.h> 34 #include <nvif/event.h> 35 #include <nvif/ioctl.h> 36 37 #include "nouveau_drv.h" 38 39 static void 40 nvkm_client_unmap(void *priv, void __iomem *ptr, u32 size) 41 { 42 iounmap(ptr); 43 } 44 45 static void __iomem * 46 nvkm_client_map(void *priv, u64 handle, u32 size) 47 { 48 return ioremap(handle, size); 49 } 50 51 static int 52 nvkm_client_ioctl(void *priv, void *data, u32 size, void **hack) 53 { 54 return nvkm_ioctl(priv, data, size, hack); 55 } 56 57 static int 58 nvkm_client_resume(void *priv) 59 { 60 struct nvkm_client *client = priv; 61 return nvkm_object_init(&client->object); 62 } 63 64 static int 65 nvkm_client_suspend(void *priv) 66 { 67 struct nvkm_client *client = priv; 68 return nvkm_object_fini(&client->object, true); 69 } 70 71 static int 72 nvkm_client_event(u64 token, void *repv, u32 repc) 73 { 74 struct nvif_object *object = (void *)(unsigned long)token; 75 struct nvif_event *event = container_of(object, typeof(*event), object); 76 77 if (event->func(event, repv, repc) == NVIF_EVENT_KEEP) 78 return NVKM_EVENT_KEEP; 79 80 return NVKM_EVENT_DROP; 81 } 82 83 static int 84 nvkm_client_driver_init(const char *name, u64 device, const char *cfg, 85 const char *dbg, void **ppriv) 86 { 87 return nvkm_client_new(name, device, cfg, dbg, nvkm_client_event, 88 (struct nvkm_client **)ppriv); 89 } 90 91 const struct nvif_driver 92 nvif_driver_nvkm = { 93 .name = "nvkm", 94 .init = nvkm_client_driver_init, 95 .suspend = nvkm_client_suspend, 96 .resume = nvkm_client_resume, 97 .ioctl = nvkm_client_ioctl, 98 .map = nvkm_client_map, 99 .unmap = nvkm_client_unmap, 100 }; 101