159 lines
4.0 KiB
C
159 lines
4.0 KiB
C
/*
|
|
* Copyright 2016 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>
|
|
*/
|
|
#include "priv.h"
|
|
|
|
struct nvkm_top_device *
|
|
nvkm_top_device_new(struct nvkm_top *top)
|
|
{
|
|
struct nvkm_top_device *info = kmalloc(sizeof(*info), GFP_KERNEL);
|
|
if (info) {
|
|
info->type = NVKM_SUBDEV_NR;
|
|
info->inst = -1;
|
|
info->addr = 0;
|
|
info->fault = -1;
|
|
info->engine = -1;
|
|
info->runlist = -1;
|
|
info->reset = -1;
|
|
info->intr = -1;
|
|
list_add_tail(&info->head, &top->device);
|
|
}
|
|
return info;
|
|
}
|
|
|
|
u32
|
|
nvkm_top_addr(struct nvkm_device *device, enum nvkm_subdev_type type, int inst)
|
|
{
|
|
struct nvkm_top *top = device->top;
|
|
struct nvkm_top_device *info;
|
|
|
|
if (top) {
|
|
list_for_each_entry(info, &top->device, head) {
|
|
if (info->type == type && info->inst == inst)
|
|
return info->addr;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
u32
|
|
nvkm_top_reset(struct nvkm_device *device, enum nvkm_subdev_type type, int inst)
|
|
{
|
|
struct nvkm_top *top = device->top;
|
|
struct nvkm_top_device *info;
|
|
|
|
if (top) {
|
|
list_for_each_entry(info, &top->device, head) {
|
|
if (info->type == type && info->inst == inst && info->reset >= 0)
|
|
return BIT(info->reset);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
u32
|
|
nvkm_top_intr_mask(struct nvkm_device *device, enum nvkm_subdev_type type, int inst)
|
|
{
|
|
struct nvkm_top *top = device->top;
|
|
struct nvkm_top_device *info;
|
|
|
|
if (top) {
|
|
list_for_each_entry(info, &top->device, head) {
|
|
if (info->type == type && info->inst == inst && info->intr >= 0)
|
|
return BIT(info->intr);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
nvkm_top_fault_id(struct nvkm_device *device, enum nvkm_subdev_type type, int inst)
|
|
{
|
|
struct nvkm_top *top = device->top;
|
|
struct nvkm_top_device *info;
|
|
|
|
list_for_each_entry(info, &top->device, head) {
|
|
if (info->type == type && info->inst == inst && info->fault >= 0)
|
|
return info->fault;
|
|
}
|
|
|
|
return -ENOENT;
|
|
}
|
|
|
|
struct nvkm_subdev *
|
|
nvkm_top_fault(struct nvkm_device *device, int fault)
|
|
{
|
|
struct nvkm_top *top = device->top;
|
|
struct nvkm_top_device *info;
|
|
|
|
list_for_each_entry(info, &top->device, head) {
|
|
if (info->fault == fault)
|
|
return nvkm_device_subdev(device, info->type, info->inst);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
nvkm_top_oneinit(struct nvkm_subdev *subdev)
|
|
{
|
|
struct nvkm_top *top = nvkm_top(subdev);
|
|
return top->func->oneinit(top);
|
|
}
|
|
|
|
static void *
|
|
nvkm_top_dtor(struct nvkm_subdev *subdev)
|
|
{
|
|
struct nvkm_top *top = nvkm_top(subdev);
|
|
struct nvkm_top_device *info, *temp;
|
|
|
|
list_for_each_entry_safe(info, temp, &top->device, head) {
|
|
list_del(&info->head);
|
|
kfree(info);
|
|
}
|
|
|
|
return top;
|
|
}
|
|
|
|
static const struct nvkm_subdev_func
|
|
nvkm_top = {
|
|
.dtor = nvkm_top_dtor,
|
|
.oneinit = nvkm_top_oneinit,
|
|
};
|
|
|
|
int
|
|
nvkm_top_new_(const struct nvkm_top_func *func, struct nvkm_device *device,
|
|
enum nvkm_subdev_type type, int inst, struct nvkm_top **ptop)
|
|
{
|
|
struct nvkm_top *top;
|
|
if (!(top = *ptop = kzalloc(sizeof(*top), GFP_KERNEL)))
|
|
return -ENOMEM;
|
|
nvkm_subdev_ctor(&nvkm_top, device, type, inst, &top->subdev);
|
|
top->func = func;
|
|
INIT_LIST_HEAD(&top->device);
|
|
return 0;
|
|
}
|