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
 40static void
 41nvkm_client_unmap(void *priv, void __iomem *ptr, u32 size)
 42{
 43	iounmap(ptr);
 44}
 45
 46static void __iomem *
 47nvkm_client_map(void *priv, u64 handle, u32 size)
 48{
 49	return ioremap(handle, size);
 50}
 51
 52static int
 53nvkm_client_ioctl(void *priv, void *data, u32 size, void **hack)
 54{
 55	return nvkm_ioctl(priv, data, size, hack);
 56}
 57
 58static int
 59nvkm_client_resume(void *priv)
 60{
 61	struct nvkm_client *client = priv;
 62	return nvkm_object_init(&client->object);
 63}
 64
 65static int
 66nvkm_client_suspend(void *priv)
 67{
 68	struct nvkm_client *client = priv;
 69	return nvkm_object_fini(&client->object, true);
 70}
 71
 72static int
 73nvkm_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
 84static int
 85nvkm_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
 92const struct nvif_driver
 93nvif_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};