mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 00:47:11 +07:00
156 lines
3.9 KiB
C
156 lines
3.9 KiB
C
/*
|
|
* Copyright 2011 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 "drmP.h"
|
|
#include "nouveau_drv.h"
|
|
#include "nouveau_bios.h"
|
|
#include "nouveau_pm.h"
|
|
|
|
static u32 read_div(struct drm_device *, int, u32, u32);
|
|
static u32 read_pll(struct drm_device *, u32);
|
|
|
|
static u32
|
|
read_vco(struct drm_device *dev, u32 dsrc)
|
|
{
|
|
u32 ssrc = nv_rd32(dev, dsrc);
|
|
if (!(ssrc & 0x00000100))
|
|
return read_pll(dev, 0x00e800);
|
|
return read_pll(dev, 0x00e820);
|
|
}
|
|
|
|
static u32
|
|
read_pll(struct drm_device *dev, u32 pll)
|
|
{
|
|
u32 ctrl = nv_rd32(dev, pll + 0);
|
|
u32 coef = nv_rd32(dev, pll + 4);
|
|
u32 P = (coef & 0x003f0000) >> 16;
|
|
u32 N = (coef & 0x0000ff00) >> 8;
|
|
u32 M = (coef & 0x000000ff) >> 0;
|
|
u32 sclk, doff;
|
|
|
|
if (!(ctrl & 0x00000001))
|
|
return 0;
|
|
|
|
switch (pll & 0xfff000) {
|
|
case 0x00e000:
|
|
sclk = 27000;
|
|
P = 1;
|
|
break;
|
|
case 0x137000:
|
|
doff = (pll - 0x137000) / 0x20;
|
|
sclk = read_div(dev, doff, 0x137120, 0x137140);
|
|
break;
|
|
case 0x132000:
|
|
switch (pll) {
|
|
case 0x132000:
|
|
sclk = read_pll(dev, 0x132020);
|
|
break;
|
|
case 0x132020:
|
|
sclk = read_div(dev, 0, 0x137320, 0x137330);
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
|
|
return sclk * N / M / P;
|
|
}
|
|
|
|
static u32
|
|
read_div(struct drm_device *dev, int doff, u32 dsrc, u32 dctl)
|
|
{
|
|
u32 ssrc = nv_rd32(dev, dsrc + (doff * 4));
|
|
u32 sctl = nv_rd32(dev, dctl + (doff * 4));
|
|
|
|
switch (ssrc & 0x00000003) {
|
|
case 0:
|
|
if ((ssrc & 0x00030000) != 0x00030000)
|
|
return 27000;
|
|
return 108000;
|
|
case 2:
|
|
return 100000;
|
|
case 3:
|
|
if (sctl & 0x80000000) {
|
|
u32 sclk = read_vco(dev, dsrc + (doff * 4));
|
|
u32 sdiv = (sctl & 0x0000003f) + 2;
|
|
return (sclk * 2) / sdiv;
|
|
}
|
|
|
|
return read_vco(dev, dsrc + (doff * 4));
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static u32
|
|
read_mem(struct drm_device *dev)
|
|
{
|
|
u32 ssel = nv_rd32(dev, 0x1373f0);
|
|
if (ssel & 0x00000001)
|
|
return read_div(dev, 0, 0x137300, 0x137310);
|
|
return read_pll(dev, 0x132000);
|
|
}
|
|
|
|
static u32
|
|
read_clk(struct drm_device *dev, int clk)
|
|
{
|
|
u32 sctl = nv_rd32(dev, 0x137250 + (clk * 4));
|
|
u32 ssel = nv_rd32(dev, 0x137100);
|
|
u32 sclk, sdiv;
|
|
|
|
if (ssel & (1 << clk)) {
|
|
if (clk < 7)
|
|
sclk = read_pll(dev, 0x137000 + (clk * 0x20));
|
|
else
|
|
sclk = read_pll(dev, 0x1370e0);
|
|
sdiv = ((sctl & 0x00003f00) >> 8) + 2;
|
|
} else {
|
|
sclk = read_div(dev, clk, 0x137160, 0x1371d0);
|
|
sdiv = ((sctl & 0x0000003f) >> 0) + 2;
|
|
}
|
|
|
|
if (sctl & 0x80000000)
|
|
return (sclk * 2) / sdiv;
|
|
return sclk;
|
|
}
|
|
|
|
int
|
|
nvc0_pm_clocks_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
|
|
{
|
|
perflvl->shader = read_clk(dev, 0x00);
|
|
perflvl->core = perflvl->shader / 2;
|
|
perflvl->memory = read_mem(dev);
|
|
perflvl->rop = read_clk(dev, 0x01);
|
|
perflvl->hub07 = read_clk(dev, 0x02);
|
|
perflvl->hub06 = read_clk(dev, 0x07);
|
|
perflvl->hub01 = read_clk(dev, 0x08);
|
|
perflvl->copy = read_clk(dev, 0x09);
|
|
perflvl->daemon = read_clk(dev, 0x0c);
|
|
perflvl->vdec = read_clk(dev, 0x0e);
|
|
return 0;
|
|
}
|