122 lines
3.1 KiB
C
122 lines
3.1 KiB
C
|
/*
|
||
|
|
* Copyright 2012 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
|
||
|
|
*/
|
||
|
|
#include "priv.h"
|
||
|
|
|
||
|
|
void
|
||
|
|
nvkm_bar_flush(struct nvkm_bar *bar)
|
||
|
|
{
|
||
|
|
if (bar && bar->func->flush)
|
||
|
|
bar->func->flush(bar);
|
||
|
|
}
|
||
|
|
|
||
|
|
struct nvkm_vmm *
|
||
|
|
nvkm_bar_bar1_vmm(struct nvkm_device *device)
|
||
|
|
{
|
||
|
|
return device->bar->func->bar1.vmm(device->bar);
|
||
|
|
}
|
||
|
|
|
||
|
|
struct nvkm_vmm *
|
||
|
|
nvkm_bar_bar2_vmm(struct nvkm_device *device)
|
||
|
|
{
|
||
|
|
/* Denies access to BAR2 when it's not initialised, used by INSTMEM
|
||
|
|
* to know when object access needs to go through the BAR0 window.
|
||
|
|
*/
|
||
|
|
struct nvkm_bar *bar = device->bar;
|
||
|
|
if (bar && bar->bar2)
|
||
|
|
return bar->func->bar2.vmm(bar);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
nvkm_bar_bar2_fini(struct nvkm_device *device)
|
||
|
|
{
|
||
|
|
struct nvkm_bar *bar = device->bar;
|
||
|
|
if (bar && bar->bar2) {
|
||
|
|
bar->func->bar2.fini(bar);
|
||
|
|
bar->bar2 = false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
nvkm_bar_bar2_init(struct nvkm_device *device)
|
||
|
|
{
|
||
|
|
struct nvkm_bar *bar = device->bar;
|
||
|
|
if (bar && bar->subdev.oneinit && !bar->bar2 && bar->func->bar2.init) {
|
||
|
|
bar->func->bar2.init(bar);
|
||
|
|
bar->func->bar2.wait(bar);
|
||
|
|
bar->bar2 = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
nvkm_bar_fini(struct nvkm_subdev *subdev, bool suspend)
|
||
|
|
{
|
||
|
|
struct nvkm_bar *bar = nvkm_bar(subdev);
|
||
|
|
bar->func->bar1.fini(bar);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
nvkm_bar_init(struct nvkm_subdev *subdev)
|
||
|
|
{
|
||
|
|
struct nvkm_bar *bar = nvkm_bar(subdev);
|
||
|
|
bar->func->bar1.init(bar);
|
||
|
|
bar->func->bar1.wait(bar);
|
||
|
|
if (bar->func->init)
|
||
|
|
bar->func->init(bar);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
nvkm_bar_oneinit(struct nvkm_subdev *subdev)
|
||
|
|
{
|
||
|
|
struct nvkm_bar *bar = nvkm_bar(subdev);
|
||
|
|
return bar->func->oneinit(bar);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void *
|
||
|
|
nvkm_bar_dtor(struct nvkm_subdev *subdev)
|
||
|
|
{
|
||
|
|
struct nvkm_bar *bar = nvkm_bar(subdev);
|
||
|
|
nvkm_bar_bar2_fini(subdev->device);
|
||
|
|
return bar->func->dtor(bar);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct nvkm_subdev_func
|
||
|
|
nvkm_bar = {
|
||
|
|
.dtor = nvkm_bar_dtor,
|
||
|
|
.oneinit = nvkm_bar_oneinit,
|
||
|
|
.init = nvkm_bar_init,
|
||
|
|
.fini = nvkm_bar_fini,
|
||
|
|
};
|
||
|
|
|
||
|
|
void
|
||
|
|
nvkm_bar_ctor(const struct nvkm_bar_func *func, struct nvkm_device *device,
|
||
|
|
int index, struct nvkm_bar *bar)
|
||
|
|
{
|
||
|
|
nvkm_subdev_ctor(&nvkm_bar, device, index, &bar->subdev);
|
||
|
|
bar->func = func;
|
||
|
|
spin_lock_init(&bar->lock);
|
||
|
|
}
|