601 lines
15 KiB
C
601 lines
15 KiB
C
/*
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* Copyright 2010 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "drmP.h"
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#include "nouveau_drv.h"
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#include "nouveau_bios.h"
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#include "nouveau_pm.h"
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static u32 read_clk(struct drm_device *, int, bool);
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static u32 read_pll(struct drm_device *, int, u32);
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static u32
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read_vco(struct drm_device *dev, int clk)
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{
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u32 sctl = nv_rd32(dev, 0x4120 + (clk * 4));
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if ((sctl & 0x00000030) != 0x00000030)
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return read_pll(dev, 0x41, 0x00e820);
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return read_pll(dev, 0x42, 0x00e8a0);
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}
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static u32
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read_clk(struct drm_device *dev, int clk, bool ignore_en)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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u32 sctl, sdiv, sclk;
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/* refclk for the 0xe8xx plls is a fixed frequency */
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if (clk >= 0x40) {
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if (dev_priv->chipset == 0xaf) {
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/* no joke.. seriously.. sigh.. */
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return nv_rd32(dev, 0x00471c) * 1000;
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}
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return dev_priv->crystal;
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}
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sctl = nv_rd32(dev, 0x4120 + (clk * 4));
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if (!ignore_en && !(sctl & 0x00000100))
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return 0;
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switch (sctl & 0x00003000) {
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case 0x00000000:
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return dev_priv->crystal;
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case 0x00002000:
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if (sctl & 0x00000040)
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return 108000;
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return 100000;
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case 0x00003000:
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sclk = read_vco(dev, clk);
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sdiv = ((sctl & 0x003f0000) >> 16) + 2;
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return (sclk * 2) / sdiv;
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default:
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return 0;
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}
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}
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static u32
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read_pll(struct drm_device *dev, int clk, u32 pll)
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{
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u32 ctrl = nv_rd32(dev, pll + 0);
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u32 sclk = 0, P = 1, N = 1, M = 1;
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if (!(ctrl & 0x00000008)) {
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if (ctrl & 0x00000001) {
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u32 coef = nv_rd32(dev, pll + 4);
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M = (coef & 0x000000ff) >> 0;
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N = (coef & 0x0000ff00) >> 8;
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P = (coef & 0x003f0000) >> 16;
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/* no post-divider on these.. */
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if ((pll & 0x00ff00) == 0x00e800)
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P = 1;
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sclk = read_clk(dev, 0x00 + clk, false);
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}
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} else {
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sclk = read_clk(dev, 0x10 + clk, false);
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}
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if (M * P)
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return sclk * N / (M * P);
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return 0;
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}
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struct creg {
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u32 clk;
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u32 pll;
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};
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static int
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calc_clk(struct drm_device *dev, int clk, u32 pll, u32 khz, struct creg *reg)
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{
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struct pll_lims limits;
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u32 oclk, sclk, sdiv;
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int P, N, M, diff;
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int ret;
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reg->pll = 0;
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reg->clk = 0;
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if (!khz) {
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NV_DEBUG(dev, "no clock for 0x%04x/0x%02x\n", pll, clk);
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return 0;
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}
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switch (khz) {
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case 27000:
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reg->clk = 0x00000100;
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return khz;
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case 100000:
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reg->clk = 0x00002100;
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return khz;
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case 108000:
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reg->clk = 0x00002140;
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return khz;
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default:
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sclk = read_vco(dev, clk);
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sdiv = min((sclk * 2) / (khz - 2999), (u32)65);
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/* if the clock has a PLL attached, and we can get a within
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* [-2, 3) MHz of a divider, we'll disable the PLL and use
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* the divider instead.
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*
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* divider can go as low as 2, limited here because NVIDIA
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* and the VBIOS on my NVA8 seem to prefer using the PLL
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* for 810MHz - is there a good reason?
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*/
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if (sdiv > 4) {
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oclk = (sclk * 2) / sdiv;
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diff = khz - oclk;
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if (!pll || (diff >= -2000 && diff < 3000)) {
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reg->clk = (((sdiv - 2) << 16) | 0x00003100);
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return oclk;
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}
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}
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if (!pll) {
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NV_ERROR(dev, "bad freq %02x: %d %d\n", clk, khz, sclk);
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return -ERANGE;
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}
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break;
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}
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ret = get_pll_limits(dev, pll, &limits);
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if (ret)
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return ret;
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limits.refclk = read_clk(dev, clk - 0x10, true);
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if (!limits.refclk)
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return -EINVAL;
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ret = nva3_calc_pll(dev, &limits, khz, &N, NULL, &M, &P);
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if (ret >= 0) {
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reg->clk = nv_rd32(dev, 0x4120 + (clk * 4));
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reg->pll = (P << 16) | (N << 8) | M;
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}
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return ret;
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}
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static void
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prog_pll(struct drm_device *dev, int clk, u32 pll, struct creg *reg)
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{
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const u32 src0 = 0x004120 + (clk * 4);
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const u32 src1 = 0x004160 + (clk * 4);
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const u32 ctrl = pll + 0;
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const u32 coef = pll + 4;
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if (!reg->clk && !reg->pll) {
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NV_DEBUG(dev, "no clock for %02x\n", clk);
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return;
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}
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if (reg->pll) {
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nv_mask(dev, src0, 0x00000101, 0x00000101);
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nv_wr32(dev, coef, reg->pll);
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nv_mask(dev, ctrl, 0x00000015, 0x00000015);
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nv_mask(dev, ctrl, 0x00000010, 0x00000000);
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nv_wait(dev, ctrl, 0x00020000, 0x00020000);
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nv_mask(dev, ctrl, 0x00000010, 0x00000010);
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nv_mask(dev, ctrl, 0x00000008, 0x00000000);
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nv_mask(dev, src1, 0x00000100, 0x00000000);
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nv_mask(dev, src1, 0x00000001, 0x00000000);
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} else {
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nv_mask(dev, src1, 0x003f3141, 0x00000101 | reg->clk);
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nv_mask(dev, ctrl, 0x00000018, 0x00000018);
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udelay(20);
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nv_mask(dev, ctrl, 0x00000001, 0x00000000);
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nv_mask(dev, src0, 0x00000100, 0x00000000);
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nv_mask(dev, src0, 0x00000001, 0x00000000);
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}
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}
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static void
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prog_clk(struct drm_device *dev, int clk, struct creg *reg)
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{
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if (!reg->clk) {
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NV_DEBUG(dev, "no clock for %02x\n", clk);
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return;
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}
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nv_mask(dev, 0x004120 + (clk * 4), 0x003f3141, 0x00000101 | reg->clk);
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}
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int
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nva3_pm_clocks_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
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{
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perflvl->core = read_pll(dev, 0x00, 0x4200);
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perflvl->shader = read_pll(dev, 0x01, 0x4220);
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perflvl->memory = read_pll(dev, 0x02, 0x4000);
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perflvl->unka0 = read_clk(dev, 0x20, false);
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perflvl->vdec = read_clk(dev, 0x21, false);
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perflvl->daemon = read_clk(dev, 0x25, false);
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perflvl->copy = perflvl->core;
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return 0;
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}
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struct nva3_pm_state {
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struct nouveau_pm_level *perflvl;
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struct creg nclk;
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struct creg sclk;
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struct creg vdec;
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struct creg unka0;
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struct creg mclk;
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u8 *rammap;
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u8 rammap_ver;
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u8 rammap_len;
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u8 *ramcfg;
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u8 ramcfg_len;
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u32 r004018;
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u32 r100760;
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};
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void *
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nva3_pm_clocks_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl)
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{
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struct nva3_pm_state *info;
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u8 ramcfg_cnt;
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int ret;
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info = kzalloc(sizeof(*info), GFP_KERNEL);
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if (!info)
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return ERR_PTR(-ENOMEM);
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ret = calc_clk(dev, 0x10, 0x4200, perflvl->core, &info->nclk);
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if (ret < 0)
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goto out;
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ret = calc_clk(dev, 0x11, 0x4220, perflvl->shader, &info->sclk);
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if (ret < 0)
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goto out;
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ret = calc_clk(dev, 0x12, 0x4000, perflvl->memory, &info->mclk);
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if (ret < 0)
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goto out;
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ret = calc_clk(dev, 0x20, 0x0000, perflvl->unka0, &info->unka0);
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if (ret < 0)
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goto out;
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ret = calc_clk(dev, 0x21, 0x0000, perflvl->vdec, &info->vdec);
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if (ret < 0)
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goto out;
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info->rammap = nouveau_perf_rammap(dev, perflvl->memory,
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&info->rammap_ver,
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&info->rammap_len,
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&ramcfg_cnt, &info->ramcfg_len);
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if (info->rammap_ver != 0x10 || info->rammap_len < 5)
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info->rammap = NULL;
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info->ramcfg = nouveau_perf_ramcfg(dev, perflvl->memory,
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&info->rammap_ver,
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&info->ramcfg_len);
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if (info->rammap_ver != 0x10)
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info->ramcfg = NULL;
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info->perflvl = perflvl;
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out:
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if (ret < 0) {
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kfree(info);
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info = ERR_PTR(ret);
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}
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return info;
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}
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static bool
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nva3_pm_grcp_idle(void *data)
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{
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struct drm_device *dev = data;
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if (!(nv_rd32(dev, 0x400304) & 0x00000001))
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return true;
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if (nv_rd32(dev, 0x400308) == 0x0050001c)
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return true;
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return false;
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}
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static void
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mclk_precharge(struct nouveau_mem_exec_func *exec)
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{
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nv_wr32(exec->dev, 0x1002d4, 0x00000001);
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}
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static void
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mclk_refresh(struct nouveau_mem_exec_func *exec)
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{
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nv_wr32(exec->dev, 0x1002d0, 0x00000001);
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}
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static void
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mclk_refresh_auto(struct nouveau_mem_exec_func *exec, bool enable)
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{
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nv_wr32(exec->dev, 0x100210, enable ? 0x80000000 : 0x00000000);
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}
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static void
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mclk_refresh_self(struct nouveau_mem_exec_func *exec, bool enable)
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{
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nv_wr32(exec->dev, 0x1002dc, enable ? 0x00000001 : 0x00000000);
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}
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static void
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mclk_wait(struct nouveau_mem_exec_func *exec, u32 nsec)
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{
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volatile u32 post = nv_rd32(exec->dev, 0); (void)post;
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udelay((nsec + 500) / 1000);
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}
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static u32
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mclk_mrg(struct nouveau_mem_exec_func *exec, int mr)
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{
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if (mr <= 1)
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return nv_rd32(exec->dev, 0x1002c0 + ((mr - 0) * 4));
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if (mr <= 3)
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return nv_rd32(exec->dev, 0x1002e0 + ((mr - 2) * 4));
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return 0;
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}
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static void
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mclk_mrs(struct nouveau_mem_exec_func *exec, int mr, u32 data)
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{
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struct drm_nouveau_private *dev_priv = exec->dev->dev_private;
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if (mr <= 1) {
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if (dev_priv->vram_rank_B)
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nv_wr32(exec->dev, 0x1002c8 + ((mr - 0) * 4), data);
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nv_wr32(exec->dev, 0x1002c0 + ((mr - 0) * 4), data);
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} else
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if (mr <= 3) {
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if (dev_priv->vram_rank_B)
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nv_wr32(exec->dev, 0x1002e8 + ((mr - 2) * 4), data);
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nv_wr32(exec->dev, 0x1002e0 + ((mr - 2) * 4), data);
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}
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}
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static void
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mclk_clock_set(struct nouveau_mem_exec_func *exec)
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{
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struct drm_device *dev = exec->dev;
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struct nva3_pm_state *info = exec->priv;
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u32 ctrl;
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ctrl = nv_rd32(dev, 0x004000);
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if (!(ctrl & 0x00000008) && info->mclk.pll) {
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nv_wr32(dev, 0x004000, (ctrl |= 0x00000008));
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nv_mask(dev, 0x1110e0, 0x00088000, 0x00088000);
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nv_wr32(dev, 0x004018, 0x00001000);
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nv_wr32(dev, 0x004000, (ctrl &= ~0x00000001));
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nv_wr32(dev, 0x004004, info->mclk.pll);
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nv_wr32(dev, 0x004000, (ctrl |= 0x00000001));
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udelay(64);
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nv_wr32(dev, 0x004018, 0x00005000 | info->r004018);
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udelay(20);
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} else
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if (!info->mclk.pll) {
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nv_mask(dev, 0x004168, 0x003f3040, info->mclk.clk);
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nv_wr32(dev, 0x004000, (ctrl |= 0x00000008));
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nv_mask(dev, 0x1110e0, 0x00088000, 0x00088000);
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nv_wr32(dev, 0x004018, 0x0000d000 | info->r004018);
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}
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if (info->rammap) {
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if (info->ramcfg && (info->rammap[4] & 0x08)) {
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u32 unk5a0 = (ROM16(info->ramcfg[5]) << 8) |
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info->ramcfg[5];
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u32 unk5a4 = ROM16(info->ramcfg[7]);
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u32 unk804 = (info->ramcfg[9] & 0xf0) << 16 |
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(info->ramcfg[3] & 0x0f) << 16 |
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(info->ramcfg[9] & 0x0f) |
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0x80000000;
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nv_wr32(dev, 0x1005a0, unk5a0);
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nv_wr32(dev, 0x1005a4, unk5a4);
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nv_wr32(dev, 0x10f804, unk804);
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nv_mask(dev, 0x10053c, 0x00001000, 0x00000000);
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} else {
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nv_mask(dev, 0x10053c, 0x00001000, 0x00001000);
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nv_mask(dev, 0x10f804, 0x80000000, 0x00000000);
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nv_mask(dev, 0x100760, 0x22222222, info->r100760);
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nv_mask(dev, 0x1007a0, 0x22222222, info->r100760);
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nv_mask(dev, 0x1007e0, 0x22222222, info->r100760);
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}
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}
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if (info->mclk.pll) {
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nv_mask(dev, 0x1110e0, 0x00088000, 0x00011000);
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nv_wr32(dev, 0x004000, (ctrl &= ~0x00000008));
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}
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}
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static void
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mclk_timing_set(struct nouveau_mem_exec_func *exec)
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{
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struct drm_device *dev = exec->dev;
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struct nva3_pm_state *info = exec->priv;
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struct nouveau_pm_level *perflvl = info->perflvl;
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int i;
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for (i = 0; i < 9; i++)
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nv_wr32(dev, 0x100220 + (i * 4), perflvl->timing.reg[i]);
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if (info->ramcfg) {
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u32 data = (info->ramcfg[2] & 0x08) ? 0x00000000 : 0x00001000;
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nv_mask(dev, 0x100200, 0x00001000, data);
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}
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if (info->ramcfg) {
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u32 unk714 = nv_rd32(dev, 0x100714) & ~0xf0000010;
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u32 unk718 = nv_rd32(dev, 0x100718) & ~0x00000100;
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u32 unk71c = nv_rd32(dev, 0x10071c) & ~0x00000100;
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if ( (info->ramcfg[2] & 0x20))
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unk714 |= 0xf0000000;
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if (!(info->ramcfg[2] & 0x04))
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unk714 |= 0x00000010;
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nv_wr32(dev, 0x100714, unk714);
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if (info->ramcfg[2] & 0x01)
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unk71c |= 0x00000100;
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nv_wr32(dev, 0x10071c, unk71c);
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if (info->ramcfg[2] & 0x02)
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unk718 |= 0x00000100;
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nv_wr32(dev, 0x100718, unk718);
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if (info->ramcfg[2] & 0x10)
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nv_wr32(dev, 0x111100, 0x48000000); /*XXX*/
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}
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}
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static void
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prog_mem(struct drm_device *dev, struct nva3_pm_state *info)
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{
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struct nouveau_mem_exec_func exec = {
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.dev = dev,
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.precharge = mclk_precharge,
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.refresh = mclk_refresh,
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.refresh_auto = mclk_refresh_auto,
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.refresh_self = mclk_refresh_self,
|
|
.wait = mclk_wait,
|
|
.mrg = mclk_mrg,
|
|
.mrs = mclk_mrs,
|
|
.clock_set = mclk_clock_set,
|
|
.timing_set = mclk_timing_set,
|
|
.priv = info
|
|
};
|
|
u32 ctrl;
|
|
|
|
/* XXX: where the fuck does 750MHz come from? */
|
|
if (info->perflvl->memory <= 750000) {
|
|
info->r004018 = 0x10000000;
|
|
info->r100760 = 0x22222222;
|
|
}
|
|
|
|
ctrl = nv_rd32(dev, 0x004000);
|
|
if (ctrl & 0x00000008) {
|
|
if (info->mclk.pll) {
|
|
nv_mask(dev, 0x004128, 0x00000101, 0x00000101);
|
|
nv_wr32(dev, 0x004004, info->mclk.pll);
|
|
nv_wr32(dev, 0x004000, (ctrl |= 0x00000001));
|
|
nv_wr32(dev, 0x004000, (ctrl &= 0xffffffef));
|
|
nv_wait(dev, 0x004000, 0x00020000, 0x00020000);
|
|
nv_wr32(dev, 0x004000, (ctrl |= 0x00000010));
|
|
nv_wr32(dev, 0x004018, 0x00005000 | info->r004018);
|
|
nv_wr32(dev, 0x004000, (ctrl |= 0x00000004));
|
|
}
|
|
} else {
|
|
u32 ssel = 0x00000101;
|
|
if (info->mclk.clk)
|
|
ssel |= info->mclk.clk;
|
|
else
|
|
ssel |= 0x00080000; /* 324MHz, shouldn't matter... */
|
|
nv_mask(dev, 0x004168, 0x003f3141, ctrl);
|
|
}
|
|
|
|
if (info->ramcfg) {
|
|
if (info->ramcfg[2] & 0x10) {
|
|
nv_mask(dev, 0x111104, 0x00000600, 0x00000000);
|
|
} else {
|
|
nv_mask(dev, 0x111100, 0x40000000, 0x40000000);
|
|
nv_mask(dev, 0x111104, 0x00000180, 0x00000000);
|
|
}
|
|
}
|
|
if (info->rammap && !(info->rammap[4] & 0x02))
|
|
nv_mask(dev, 0x100200, 0x00000800, 0x00000000);
|
|
nv_wr32(dev, 0x611200, 0x00003300);
|
|
if (!(info->ramcfg[2] & 0x10))
|
|
nv_wr32(dev, 0x111100, 0x4c020000); /*XXX*/
|
|
|
|
nouveau_mem_exec(&exec, info->perflvl);
|
|
|
|
nv_wr32(dev, 0x611200, 0x00003330);
|
|
if (info->rammap && (info->rammap[4] & 0x02))
|
|
nv_mask(dev, 0x100200, 0x00000800, 0x00000800);
|
|
if (info->ramcfg) {
|
|
if (info->ramcfg[2] & 0x10) {
|
|
nv_mask(dev, 0x111104, 0x00000180, 0x00000180);
|
|
nv_mask(dev, 0x111100, 0x40000000, 0x00000000);
|
|
} else {
|
|
nv_mask(dev, 0x111104, 0x00000600, 0x00000600);
|
|
}
|
|
}
|
|
|
|
if (info->mclk.pll) {
|
|
nv_mask(dev, 0x004168, 0x00000001, 0x00000000);
|
|
nv_mask(dev, 0x004168, 0x00000100, 0x00000000);
|
|
} else {
|
|
nv_mask(dev, 0x004000, 0x00000001, 0x00000000);
|
|
nv_mask(dev, 0x004128, 0x00000001, 0x00000000);
|
|
nv_mask(dev, 0x004128, 0x00000100, 0x00000000);
|
|
}
|
|
}
|
|
|
|
int
|
|
nva3_pm_clocks_set(struct drm_device *dev, void *pre_state)
|
|
{
|
|
struct drm_nouveau_private *dev_priv = dev->dev_private;
|
|
struct nva3_pm_state *info = pre_state;
|
|
unsigned long flags;
|
|
int ret = -EAGAIN;
|
|
|
|
/* prevent any new grctx switches from starting */
|
|
spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
|
|
nv_wr32(dev, 0x400324, 0x00000000);
|
|
nv_wr32(dev, 0x400328, 0x0050001c); /* wait flag 0x1c */
|
|
/* wait for any pending grctx switches to complete */
|
|
if (!nv_wait_cb(dev, nva3_pm_grcp_idle, dev)) {
|
|
NV_ERROR(dev, "pm: ctxprog didn't go idle\n");
|
|
goto cleanup;
|
|
}
|
|
/* freeze PFIFO */
|
|
nv_mask(dev, 0x002504, 0x00000001, 0x00000001);
|
|
if (!nv_wait(dev, 0x002504, 0x00000010, 0x00000010)) {
|
|
NV_ERROR(dev, "pm: fifo didn't go idle\n");
|
|
goto cleanup;
|
|
}
|
|
|
|
prog_pll(dev, 0x00, 0x004200, &info->nclk);
|
|
prog_pll(dev, 0x01, 0x004220, &info->sclk);
|
|
prog_clk(dev, 0x20, &info->unka0);
|
|
prog_clk(dev, 0x21, &info->vdec);
|
|
|
|
if (info->mclk.clk || info->mclk.pll)
|
|
prog_mem(dev, info);
|
|
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
/* unfreeze PFIFO */
|
|
nv_mask(dev, 0x002504, 0x00000001, 0x00000000);
|
|
/* restore ctxprog to normal */
|
|
nv_wr32(dev, 0x400324, 0x00000000);
|
|
nv_wr32(dev, 0x400328, 0x0070009c); /* set flag 0x1c */
|
|
/* unblock it if necessary */
|
|
if (nv_rd32(dev, 0x400308) == 0x0050001c)
|
|
nv_mask(dev, 0x400824, 0x10000000, 0x10000000);
|
|
spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
|
|
kfree(info);
|
|
return ret;
|
|
}
|