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kernel add
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/*
* Copyright (C) 2010 Francisco Jerez.
* All Rights Reserved.
*
* 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 (including the
* next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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.
*
*/
#include "nv04.h"
#include "fbmem.h"
#include <subdev/bios.h>
#include <subdev/bios/init.h>
static void
nv20_devinit_meminit(struct nvkm_devinit *init)
{
struct nvkm_subdev *subdev = &init->subdev;
struct nvkm_device *device = subdev->device;
uint32_t mask = (device->chipset >= 0x25 ? 0x300 : 0x900);
uint32_t amount, off;
struct io_mapping *fb;
/* Map the framebuffer aperture */
fb = fbmem_init(device);
if (!fb) {
nvkm_error(subdev, "failed to map fb
");
return;
}
nvkm_wr32(device, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
/* Allow full addressing */
nvkm_mask(device, NV04_PFB_CFG0, 0, mask);
amount = nvkm_rd32(device, 0x10020c);
for (off = amount; off > 0x2000000; off -= 0x2000000)
fbmem_poke(fb, off - 4, off);
amount = nvkm_rd32(device, 0x10020c);
if (amount != fbmem_peek(fb, amount - 4))
/* IC missing - disable the upper half memory space. */
nvkm_mask(device, NV04_PFB_CFG0, mask, 0);
fbmem_fini(fb);
}
static const struct nvkm_devinit_func
nv20_devinit = {
.dtor = nv04_devinit_dtor,
.preinit = nv04_devinit_preinit,
.post = nv04_devinit_post,
.meminit = nv20_devinit_meminit,
.pll_set = nv04_devinit_pll_set,
};
int
nv20_devinit_new(struct nvkm_device *device, int index,
struct nvkm_devinit **pinit)
{
return nv04_devinit_new_(&nv20_devinit, device, index, pinit);
}
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