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/*
* 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"
#include <core/device.h>
#include <subdev/fb.h>
#include <subdev/mmu.h>
struct nvkm_barobj {
struct nvkm_object base;
struct nvkm_vma vma;
void __iomem *iomem;
};
static int
nvkm_barobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, void *data, u32 size,
struct nvkm_object **pobject)
{
struct nvkm_device *device = nv_device(parent);
struct nvkm_bar *bar = nvkm_bar(device);
struct nvkm_mem *mem = data;
struct nvkm_barobj *barobj;
int ret;
ret = nvkm_object_create(parent, engine, oclass, 0, &barobj);
*pobject = nv_object(barobj);
if (ret)
return ret;
ret = bar->kmap(bar, mem, NV_MEM_ACCESS_RW, &barobj->vma);
if (ret)
return ret;
barobj->iomem = ioremap(nv_device_resource_start(device, 3) +
(u32)barobj->vma.offset, mem->size << 12);
if (!barobj->iomem) {
nv_warn(bar, "PRAMIN ioremap failed\n");
return -ENOMEM;
}
return 0;
}
static void
nvkm_barobj_dtor(struct nvkm_object *object)
{
struct nvkm_bar *bar = nvkm_bar(object);
struct nvkm_barobj *barobj = (void *)object;
if (barobj->vma.node) {
if (barobj->iomem)
iounmap(barobj->iomem);
bar->unmap(bar, &barobj->vma);
}
nvkm_object_destroy(&barobj->base);
}
static u32
nvkm_barobj_rd32(struct nvkm_object *object, u64 addr)
{
struct nvkm_barobj *barobj = (void *)object;
return ioread32_native(barobj->iomem + addr);
}
static void
nvkm_barobj_wr32(struct nvkm_object *object, u64 addr, u32 data)
{
struct nvkm_barobj *barobj = (void *)object;
iowrite32_native(data, barobj->iomem + addr);
}
static struct nvkm_oclass
nvkm_barobj_oclass = {
.ofuncs = &(struct nvkm_ofuncs) {
.ctor = nvkm_barobj_ctor,
.dtor = nvkm_barobj_dtor,
.init = nvkm_object_init,
.fini = nvkm_object_fini,
.rd32 = nvkm_barobj_rd32,
.wr32 = nvkm_barobj_wr32,
},
};
int
nvkm_bar_alloc(struct nvkm_bar *bar, struct nvkm_object *parent,
struct nvkm_mem *mem, struct nvkm_object **pobject)
{
struct nvkm_object *gpuobj;
int ret = nvkm_object_ctor(parent, &parent->engine->subdev.object,
&nvkm_barobj_oclass, mem, 0, &gpuobj);
if (ret == 0)
*pobject = gpuobj;
return ret;
}
int
nvkm_bar_create_(struct nvkm_object *parent, struct nvkm_object *engine,
struct nvkm_oclass *oclass, int length, void **pobject)
{
struct nvkm_bar *bar;
int ret;
ret = nvkm_subdev_create_(parent, engine, oclass, 0, "BARCTL",
"bar", length, pobject);
bar = *pobject;
if (ret)
return ret;
return 0;
}
void
nvkm_bar_destroy(struct nvkm_bar *bar)
{
nvkm_subdev_destroy(&bar->base);
}
void
_nvkm_bar_dtor(struct nvkm_object *object)
{
struct nvkm_bar *bar = (void *)object;
nvkm_bar_destroy(bar);
}
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