/*
* 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
gt215_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:
nvkm_wr32(device, info.reg + 0 , 0 x50000610);
nvkm_mask(device, info.reg + 4 , 0 x003fffff,
(P << 16 ) | (M << 8 ) | N);
nvkm_wr32(device, info.reg + 8 , fN);
break ;
default :
nvkm_warn(subdev, "%08x/%dKhz unimplemented\n" , type, freq);
ret = -EINVAL;
break ;
}
return ret;
}
static void
gt215_devinit_disable(struct nvkm_devinit *init)
{
struct nvkm_device *device = init->subdev.device;
u32 r001540 = nvkm_rd32(device, 0 x001540);
u32 r00154c = nvkm_rd32(device, 0 x00154c);
if (!(r001540 & 0 x40000000)) {
nvkm_subdev_disable(device, NVKM_ENGINE_MSPDEC, 0 );
nvkm_subdev_disable(device, NVKM_ENGINE_MSPPP, 0 );
}
if (!(r00154c & 0 x00000004))
nvkm_subdev_disable(device, NVKM_ENGINE_DISP, 0 );
if (!(r00154c & 0 x00000020))
nvkm_subdev_disable(device, NVKM_ENGINE_MSVLD, 0 );
if (!(r00154c & 0 x00000200))
nvkm_subdev_disable(device, NVKM_ENGINE_CE, 0 );
}
static u32
gt215_devinit_mmio_part[] = {
0 x100720, 0 x1008bc, 4 ,
0 x100a20, 0 x100adc, 4 ,
0 x100d80, 0 x100ddc, 4 ,
0 x110000, 0 x110f9c, 4 ,
0 x111000, 0 x11103c, 8 ,
0 x111080, 0 x1110fc, 4 ,
0 x111120, 0 x1111fc, 4 ,
0 x111300, 0 x1114bc, 4 ,
0 ,
};
static u32
gt215_devinit_mmio(struct nvkm_devinit *base, u32 addr)
{
struct nv50_devinit *init = nv50_devinit(base);
struct nvkm_device *device = init->base.subdev.device;
u32 *mmio = gt215_devinit_mmio_part;
/* the init tables on some boards have INIT_RAM_RESTRICT_ZM_REG_GROUP
* instructions which touch registers that may not even exist on
* some configurations ( Quadro 400 ) , which causes the register
* interface to screw up for some amount of time after attempting to
* write to one of these , and results in all sorts of things going
* horribly wrong .
*
* the binary driver avoids touching these registers at all , however ,
* the video bios doesn ' t care and does what the scripts say . it ' s
* presumed that the io - port access to init registers isn ' t effected
* by the screw - up bug mentioned above .
*
* really , a new opcode should ' ve been invented to handle these
* requirements , but whatever , it ' s too late for that now .
*/
while (mmio[0 ]) {
if (addr >= mmio[0 ] && addr <= mmio[1 ]) {
u32 part = (addr / mmio[2 ]) & 7 ;
if (!init->r001540)
init->r001540 = nvkm_rd32(device, 0 x001540);
if (part >= hweight8((init->r001540 >> 16 ) & 0 xff))
return ~0 ;
return addr;
}
mmio += 3 ;
}
return addr;
}
static const struct nvkm_devinit_func
gt215_devinit = {
.preinit = nv50_devinit_preinit,
.init = nv50_devinit_init,
.post = nv04_devinit_post,
.mmio = gt215_devinit_mmio,
.pll_set = gt215_devinit_pll_set,
.disable = gt215_devinit_disable,
};
int
gt215_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
struct nvkm_devinit **pinit)
{
return nv50_devinit_new_(>215_devinit, device, type, inst, pinit);
}
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(vorverarbeitet am 2026-10-07)
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