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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 "gf100.h"
#include <core/device.h>
extern const u8 gf100_pte_storage_type_map[256];
bool
gf100_fb_memtype_valid(struct nvkm_fb *pfb, u32 tile_flags)
{
u8 memtype = (tile_flags & 0x0000ff00) >> 8;
return likely((gf100_pte_storage_type_map[memtype] != 0xff));
}
static void
gf100_fb_intr(struct nvkm_subdev *subdev)
{
struct gf100_fb_priv *priv = (void *)subdev;
u32 intr = nv_rd32(priv, 0x000100);
if (intr & 0x08000000) {
nv_debug(priv, "PFFB intr\n");
intr &= ~0x08000000;
}
if (intr & 0x00002000) {
nv_debug(priv, "PBFB intr\n");
intr &= ~0x00002000;
}
}
int
gf100_fb_init(struct nvkm_object *object)
{
struct gf100_fb_priv *priv = (void *)object;
int ret;
ret = nvkm_fb_init(&priv->base);
if (ret)
return ret;
if (priv->r100c10_page)
nv_wr32(priv, 0x100c10, priv->r100c10 >> 8);
nv_mask(priv, 0x100c80, 0x00000001, 0x00000000); /* 128KiB lpg */
return 0;
}
void
gf100_fb_dtor(struct nvkm_object *object)
{
struct nvkm_device *device = nv_device(object);
struct gf100_fb_priv *priv = (void *)object;
if (priv->r100c10_page) {
dma_unmap_page(nv_device_base(device), priv->r100c10, PAGE_SIZE,
DMA_BIDIRECTIONAL);
__free_page(priv->r100c10_page);
}
nvkm_fb_destroy(&priv->base);
}
int
gf100_fb_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 gf100_fb_priv *priv;
int ret;
ret = nvkm_fb_create(parent, engine, oclass, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
priv->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
if (priv->r100c10_page) {
priv->r100c10 = dma_map_page(nv_device_base(device),
priv->r100c10_page, 0, PAGE_SIZE,
DMA_BIDIRECTIONAL);
if (dma_mapping_error(nv_device_base(device), priv->r100c10))
return -EFAULT;
}
nv_subdev(priv)->intr = gf100_fb_intr;
return 0;
}
struct nvkm_oclass *
gf100_fb_oclass = &(struct nvkm_fb_impl) {
.base.handle = NV_SUBDEV(FB, 0xc0),
.base.ofuncs = &(struct nvkm_ofuncs) {
.ctor = gf100_fb_ctor,
.dtor = gf100_fb_dtor,
.init = gf100_fb_init,
.fini = _nvkm_fb_fini,
},
.memtype = gf100_fb_memtype_valid,
.ram = &gf100_ram_oclass,
}.base;
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