mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-14 06:36:46 +07:00
137 lines
3.4 KiB
C
137 lines
3.4 KiB
C
/*
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* Copyright 2014 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs <bskeggs@redhat.com>
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*/
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/*******************************************************************************
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* NVIF client driver - NVKM directly linked
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******************************************************************************/
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#include <core/client.h>
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#include <core/notify.h>
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#include <core/ioctl.h>
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#include <nvif/client.h>
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#include <nvif/driver.h>
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#include <nvif/notify.h>
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#include <nvif/event.h>
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#include <nvif/ioctl.h>
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#include "nouveau_drm.h"
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#include "nouveau_usif.h"
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static void
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nvkm_client_unmap(void *priv, void __iomem *ptr, u32 size)
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{
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iounmap(ptr);
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}
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static void __iomem *
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nvkm_client_map(void *priv, u64 handle, u32 size)
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{
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return ioremap(handle, size);
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}
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static int
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nvkm_client_ioctl(void *priv, bool super, void *data, u32 size, void **hack)
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{
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return nvkm_ioctl(priv, super, data, size, hack);
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}
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static int
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nvkm_client_resume(void *priv)
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{
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return nouveau_client_init(priv);
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}
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static int
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nvkm_client_suspend(void *priv)
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{
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return nouveau_client_fini(priv, true);
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}
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static void
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nvkm_client_fini(void *priv)
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{
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struct nouveau_object *client = priv;
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nouveau_client_fini(nv_client(client), false);
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atomic_set(&client->refcount, 1);
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nouveau_object_ref(NULL, &client);
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}
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static int
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nvkm_client_ntfy(const void *header, u32 length, const void *data, u32 size)
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{
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const union {
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struct nvif_notify_req_v0 v0;
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} *args = header;
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u8 route;
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if (length == sizeof(args->v0) && args->v0.version == 0) {
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route = args->v0.route;
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} else {
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WARN_ON(1);
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return NVKM_NOTIFY_DROP;
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}
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switch (route) {
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case NVDRM_NOTIFY_NVIF:
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return nvif_notify(header, length, data, size);
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case NVDRM_NOTIFY_USIF:
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return usif_notify(header, length, data, size);
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default:
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WARN_ON(1);
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break;
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}
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return NVKM_NOTIFY_DROP;
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}
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static int
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nvkm_client_init(const char *name, u64 device, const char *cfg,
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const char *dbg, void **ppriv)
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{
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struct nouveau_client *client;
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int ret;
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ret = nouveau_client_create(name, device, cfg, dbg, &client);
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*ppriv = client;
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if (ret)
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return ret;
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client->ntfy = nvkm_client_ntfy;
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return 0;
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}
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const struct nvif_driver
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nvif_driver_nvkm = {
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.name = "nvkm",
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.init = nvkm_client_init,
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.fini = nvkm_client_fini,
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.suspend = nvkm_client_suspend,
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.resume = nvkm_client_resume,
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.ioctl = nvkm_client_ioctl,
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.map = nvkm_client_map,
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.unmap = nvkm_client_unmap,
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.keep = false,
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};
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