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