diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_nvif.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_nvif.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_nvif.c b/drivers/gpu/drm/nouveau/nouveau_nvif.c new file mode 100644 index 0000000000..1d49ebdfd5 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_nvif.c @@ -0,0 +1,102 @@ +/* + * Copyright 2014 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs <bskeggs@redhat.com> + */ + +/******************************************************************************* + * NVIF client driver - NVKM directly linked + ******************************************************************************/ + +#include <core/client.h> +#include <core/ioctl.h> + +#include <nvif/client.h> +#include <nvif/driver.h> +#include <nvif/event.h> +#include <nvif/ioctl.h> + +#include "nouveau_drv.h" +#include "nouveau_usif.h" + +static void +nvkm_client_unmap(void *priv, void __iomem *ptr, u32 size) +{ + iounmap(ptr); +} + +static void __iomem * +nvkm_client_map(void *priv, u64 handle, u32 size) +{ + return ioremap(handle, size); +} + +static int +nvkm_client_ioctl(void *priv, void *data, u32 size, void **hack) +{ + return nvkm_ioctl(priv, data, size, hack); +} + +static int +nvkm_client_resume(void *priv) +{ + struct nvkm_client *client = priv; + return nvkm_object_init(&client->object); +} + +static int +nvkm_client_suspend(void *priv) +{ + struct nvkm_client *client = priv; + return nvkm_object_fini(&client->object, true); +} + +static int +nvkm_client_event(u64 token, void *repv, u32 repc) +{ + struct nvif_object *object = (void *)(unsigned long)token; + struct nvif_event *event = container_of(object, typeof(*event), object); + + if (event->func(event, repv, repc) == NVIF_EVENT_KEEP) + return NVKM_EVENT_KEEP; + + return NVKM_EVENT_DROP; +} + +static int +nvkm_client_driver_init(const char *name, u64 device, const char *cfg, + const char *dbg, void **ppriv) +{ + return nvkm_client_new(name, device, cfg, dbg, nvkm_client_event, + (struct nvkm_client **)ppriv); +} + +const struct nvif_driver +nvif_driver_nvkm = { + .name = "nvkm", + .init = nvkm_client_driver_init, + .suspend = nvkm_client_suspend, + .resume = nvkm_client_resume, + .ioctl = nvkm_client_ioctl, + .map = nvkm_client_map, + .unmap = nvkm_client_unmap, + .keep = false, +}; |