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 #include "nouveau_usif.h" 39 40 static void 41 nvkm_client_unmap(void *priv, void __iomem *ptr, u32 size) 42 { 43 iounmap(ptr); 44 } 45 46 static void __iomem * 47 nvkm_client_map(void *priv, u64 handle, u32 size) 48 { 49 return ioremap(handle, size); 50 } 51 52 static int 53 nvkm_client_ioctl(void *priv, void *data, u32 size, void **hack) 54 { 55 return nvkm_ioctl(priv, data, size, hack); 56 } 57 58 static int 59 nvkm_client_resume(void *priv) 60 { 61 struct nvkm_client *client = priv; 62 return nvkm_object_init(&client->object); 63 } 64 65 static int 66 nvkm_client_suspend(void *priv) 67 { 68 struct nvkm_client *client = priv; 69 return nvkm_object_fini(&client->object, true); 70 } 71 72 static int 73 nvkm_client_event(u64 token, void *repv, u32 repc) 74 { 75 struct nvif_object *object = (void *)(unsigned long)token; 76 struct nvif_event *event = container_of(object, typeof(*event), object); 77 78 if (event->func(event, repv, repc) == NVIF_EVENT_KEEP) 79 return NVKM_EVENT_KEEP; 80 81 return NVKM_EVENT_DROP; 82 } 83 84 static int 85 nvkm_client_driver_init(const char *name, u64 device, const char *cfg, 86 const char *dbg, void **ppriv) 87 { 88 return nvkm_client_new(name, device, cfg, dbg, nvkm_client_event, 89 (struct nvkm_client **)ppriv); 90 } 91 92 const struct nvif_driver 93 nvif_driver_nvkm = { 94 .name = "nvkm", 95 .init = nvkm_client_driver_init, 96 .suspend = nvkm_client_suspend, 97 .resume = nvkm_client_resume, 98 .ioctl = nvkm_client_ioctl, 99 .map = nvkm_client_map, 100 .unmap = nvkm_client_unmap, 101 .keep = false, 102 }; 103