/*
* 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);
}
void
nvkm_bar_bar1_reset(struct nvkm_device *device)
{
struct nvkm_bar *bar = device->bar;
if (bar) {
bar->func->bar1.init(bar);
bar->func->bar1.wait(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_reset(struct nvkm_device *device)
{
struct nvkm_bar *bar = device->bar;
if (bar && bar->bar2) {
bar->func->bar2.init(bar);
bar->func->bar2.wait(bar);
}
}
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);
if (!subdev->use.enabled)
return 0 ;
if (bar->func->bar1.fini)
bar->func->bar1.fini(bar);
if (!suspend) /* Handled by instmem. */
nvkm_bar_bar2_fini(subdev->device);
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);
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,
enum nvkm_subdev_type type, int inst, struct nvkm_bar *bar)
{
nvkm_subdev_ctor(&nvkm_bar, device, type, inst, &bar->subdev);
bar->func = func;
spin_lock_init(&bar->lock);
}
Messung V0.5 in Prozent C=99 H=100 G=99
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-06)
¤
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