mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 09:36:57 +07:00
a04d04231b
This is a wrapper around the interfaces defined in an earlier commit, and is also used by various userspace (either by a libdrm backend, or libpciaccess) tools/tests. In the future this will be extended to handle channels, replacing some long-unloved code we currently use, and allow fifo/display/mpeg (hi Ilia ;)) engines to all be exposed in the same way. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
79 lines
2.4 KiB
C
79 lines
2.4 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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#include "device.h"
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void
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nvif_device_fini(struct nvif_device *device)
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{
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nvif_object_fini(&device->base);
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}
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int
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nvif_device_init(struct nvif_object *parent, void (*dtor)(struct nvif_device *),
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u32 handle, u32 oclass, void *data, u32 size,
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struct nvif_device *device)
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{
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int ret = nvif_object_init(parent, (void *)dtor, handle, oclass,
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data, size, &device->base);
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if (ret == 0) {
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device->object = &device->base;
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device->info.version = 0;
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ret = nvif_object_mthd(&device->base, NV_DEVICE_V0_INFO,
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&device->info, sizeof(device->info));
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}
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return ret;
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}
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static void
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nvif_device_del(struct nvif_device *device)
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{
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nvif_device_fini(device);
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kfree(device);
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}
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int
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nvif_device_new(struct nvif_object *parent, u32 handle, u32 oclass,
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void *data, u32 size, struct nvif_device **pdevice)
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{
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struct nvif_device *device = kzalloc(sizeof(*device), GFP_KERNEL);
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if (device) {
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int ret = nvif_device_init(parent, nvif_device_del, handle,
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oclass, data, size, device);
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if (ret) {
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kfree(device);
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device = NULL;
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}
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*pdevice = device;
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return ret;
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}
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return -ENOMEM;
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}
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void
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nvif_device_ref(struct nvif_device *device, struct nvif_device **pdevice)
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{
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nvif_object_ref(&device->base, (struct nvif_object **)pdevice);
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}
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