diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /drivers/gpu/drm/nouveau/nouveau_nvif.c |
Initial import
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_nvif.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_nvif.c | 136 |
1 files changed, 136 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 000000000..ca0ad9d15 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_nvif.c @@ -0,0 +1,136 @@ +/* + * 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/notify.h> +#include <core/ioctl.h> + +#include <nvif/client.h> +#include <nvif/driver.h> +#include <nvif/notify.h> +#include <nvif/event.h> +#include <nvif/ioctl.h> + +#include "nouveau_drm.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, bool super, void *data, u32 size, void **hack) +{ + return nvkm_ioctl(priv, super, data, size, hack); +} + +static int +nvkm_client_resume(void *priv) +{ + return nvkm_client_init(priv); +} + +static int +nvkm_client_suspend(void *priv) +{ + return nvkm_client_fini(priv, true); +} + +static void +nvkm_client_driver_fini(void *priv) +{ + struct nvkm_object *client = priv; + nvkm_client_fini(nv_client(client), false); + atomic_set(&client->refcount, 1); + nvkm_object_ref(NULL, &client); +} + +static int +nvkm_client_ntfy(const void *header, u32 length, const void *data, u32 size) +{ + const union { + struct nvif_notify_req_v0 v0; + } *args = header; + u8 route; + + if (length == sizeof(args->v0) && args->v0.version == 0) { + route = args->v0.route; + } else { + WARN_ON(1); + return NVKM_NOTIFY_DROP; + } + + switch (route) { + case NVDRM_NOTIFY_NVIF: + return nvif_notify(header, length, data, size); + case NVDRM_NOTIFY_USIF: + return usif_notify(header, length, data, size); + default: + WARN_ON(1); + break; + } + + return NVKM_NOTIFY_DROP; +} + +static int +nvkm_client_driver_init(const char *name, u64 device, const char *cfg, + const char *dbg, void **ppriv) +{ + struct nvkm_client *client; + int ret; + + ret = nvkm_client_create(name, device, cfg, dbg, &client); + *ppriv = client; + if (ret) + return ret; + + client->ntfy = nvkm_client_ntfy; + return 0; +} + +const struct nvif_driver +nvif_driver_nvkm = { + .name = "nvkm", + .init = nvkm_client_driver_init, + .fini = nvkm_client_driver_fini, + .suspend = nvkm_client_suspend, + .resume = nvkm_client_resume, + .ioctl = nvkm_client_ioctl, + .map = nvkm_client_map, + .unmap = nvkm_client_unmap, + .keep = false, +}; |