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/*
* Copyright 2013 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 "nv50.h"
#include <subdev/bios.h>
#include <subdev/bios/init.h>
#include <subdev/bios/pll.h>
#include <subdev/clk/pll.h>
int
gf100_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)
{
struct nvkm_subdev *subdev = &init->subdev;
struct nvkm_device *device = subdev->device;
struct nvbios_pll info;
int N, fN, M, P;
int ret;
ret = nvbios_pll_parse(device->bios, type, &info);
if (ret)
return ret;
ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P);
if (ret < 0)
return ret;
switch (info.type) {
case PLL_VPLL0:
case PLL_VPLL1:
case PLL_VPLL2:
case PLL_VPLL3:
nvkm_mask(device, info.reg + 0x0c, 0x00000000, 0x00000100);
nvkm_wr32(device, info.reg + 0x04, (P << 16) | (N << 8) | M);
nvkm_wr32(device, info.reg + 0x10, fN << 16);
break;
default:
nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq);
ret = -EINVAL;
break;
}
return ret;
}
static u64
gf100_devinit_disable(struct nvkm_devinit *init)
{
struct nvkm_device *device = init->subdev.device;
u32 r022500 = nvkm_rd32(device, 0x022500);
u64 disable = 0ULL;
if (r022500 & 0x00000001)
disable |= (1ULL << NVKM_ENGINE_DISP);
if (r022500 & 0x00000002) {
disable |= (1ULL << NVKM_ENGINE_MSPDEC);
disable |= (1ULL << NVKM_ENGINE_MSPPP);
}
if (r022500 & 0x00000004)
disable |= (1ULL << NVKM_ENGINE_MSVLD);
if (r022500 & 0x00000008)
disable |= (1ULL << NVKM_ENGINE_MSENC);
if (r022500 & 0x00000100)
nvkm_subdev_disable(device, NVKM_ENGINE_CE, 0);
if (r022500 & 0x00000200)
nvkm_subdev_disable(device, NVKM_ENGINE_CE, 1);
return disable;
}
void
gf100_devinit_preinit(struct nvkm_devinit *base)
{
struct nv50_devinit *init = nv50_devinit(base);
struct nvkm_subdev *subdev = &init->base.subdev;
struct nvkm_device *device = subdev->device;
/*
* This bit is set by devinit, and flips back to 0 on suspend. We
* can use it as a reliable way to know whether we should run devinit.
*/
base->post = ((nvkm_rd32(device, 0x2240c) & BIT(1)) == 0);
}
static const struct nvkm_devinit_func
gf100_devinit = {
.preinit = gf100_devinit_preinit,
.init = nv50_devinit_init,
.post = nv04_devinit_post,
.pll_set = gf100_devinit_pll_set,
.disable = gf100_devinit_disable,
};
int
gf100_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
struct nvkm_devinit **pinit)
{
return nv50_devinit_new_(&gf100_devinit, device, type, inst, pinit);
}
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