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path: root/drivers/gpu/drm/nouveau/nva3_pm.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nva3_pm.c')
-rw-r--r--drivers/gpu/drm/nouveau/nva3_pm.c624
1 files changed, 0 insertions, 624 deletions
diff --git a/drivers/gpu/drm/nouveau/nva3_pm.c b/drivers/gpu/drm/nouveau/nva3_pm.c
deleted file mode 100644
index 0d0ed597fea..00000000000
--- a/drivers/gpu/drm/nouveau/nva3_pm.c
+++ /dev/null
@@ -1,624 +0,0 @@
-/*
- * Copyright 2010 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 <drm/drmP.h>
-#include "nouveau_drm.h"
-#include "nouveau_bios.h"
-#include "nouveau_pm.h"
-
-#include <subdev/bios/pll.h>
-#include <subdev/bios.h>
-#include <subdev/clock.h>
-#include <subdev/timer.h>
-#include <subdev/fb.h>
-
-static u32 read_clk(struct drm_device *, int, bool);
-static u32 read_pll(struct drm_device *, int, u32);
-
-static u32
-read_vco(struct drm_device *dev, int clk)
-{
- struct nouveau_device *device = nouveau_dev(dev);
- u32 sctl = nv_rd32(device, 0x4120 + (clk * 4));
- if ((sctl & 0x00000030) != 0x00000030)
- return read_pll(dev, 0x41, 0x00e820);
- return read_pll(dev, 0x42, 0x00e8a0);
-}
-
-static u32
-read_clk(struct drm_device *dev, int clk, bool ignore_en)
-{
- struct nouveau_device *device = nouveau_dev(dev);
- struct nouveau_drm *drm = nouveau_drm(dev);
- u32 sctl, sdiv, sclk;
-
- /* refclk for the 0xe8xx plls is a fixed frequency */
- if (clk >= 0x40) {
- if (nv_device(drm->device)->chipset == 0xaf) {
- /* no joke.. seriously.. sigh.. */
- return nv_rd32(device, 0x00471c) * 1000;
- }
-
- return device->crystal;
- }
-
- sctl = nv_rd32(device, 0x4120 + (clk * 4));
- if (!ignore_en && !(sctl & 0x00000100))
- return 0;
-
- switch (sctl & 0x00003000) {
- case 0x00000000:
- return device->crystal;
- case 0x00002000:
- if (sctl & 0x00000040)
- return 108000;
- return 100000;
- case 0x00003000:
- sclk = read_vco(dev, clk);
- sdiv = ((sctl & 0x003f0000) >> 16) + 2;
- return (sclk * 2) / sdiv;
- default:
- return 0;
- }
-}
-
-static u32
-read_pll(struct drm_device *dev, int clk, u32 pll)
-{
- struct nouveau_device *device = nouveau_dev(dev);
- u32 ctrl = nv_rd32(device, pll + 0);
- u32 sclk = 0, P = 1, N = 1, M = 1;
-
- if (!(ctrl & 0x00000008)) {
- if (ctrl & 0x00000001) {
- u32 coef = nv_rd32(device, pll + 4);
- M = (coef & 0x000000ff) >> 0;
- N = (coef & 0x0000ff00) >> 8;
- P = (coef & 0x003f0000) >> 16;
-
- /* no post-divider on these.. */
- if ((pll & 0x00ff00) == 0x00e800)
- P = 1;
-
- sclk = read_clk(dev, 0x00 + clk, false);
- }
- } else {
- sclk = read_clk(dev, 0x10 + clk, false);
- }
-
- if (M * P)
- return sclk * N / (M * P);
- return 0;
-}
-
-struct creg {
- u32 clk;
- u32 pll;
-};
-
-static int
-calc_clk(struct drm_device *dev, int clk, u32 pll, u32 khz, struct creg *reg)
-{
- struct nouveau_drm *drm = nouveau_drm(dev);
- struct nouveau_device *device = nouveau_dev(dev);
- struct nouveau_bios *bios = nouveau_bios(device);
- struct nvbios_pll limits;
- u32 oclk, sclk, sdiv;
- int P, N, M, diff;
- int ret;
-
- reg->pll = 0;
- reg->clk = 0;
- if (!khz) {
- NV_DEBUG(drm, "no clock for 0x%04x/0x%02x\n", pll, clk);
- return 0;
- }
-
- switch (khz) {
- case 27000:
- reg->clk = 0x00000100;
- return khz;
- case 100000:
- reg->clk = 0x00002100;
- return khz;
- case 108000:
- reg->clk = 0x00002140;
- return khz;
- default:
- sclk = read_vco(dev, clk);
- sdiv = min((sclk * 2) / (khz - 2999), (u32)65);
- /* if the clock has a PLL attached, and we can get a within
- * [-2, 3) MHz of a divider, we'll disable the PLL and use
- * the divider instead.
- *
- * divider can go as low as 2, limited here because NVIDIA
- * and the VBIOS on my NVA8 seem to prefer using the PLL
- * for 810MHz - is there a good reason?
- */
- if (sdiv > 4) {
- oclk = (sclk * 2) / sdiv;
- diff = khz - oclk;
- if (!pll || (diff >= -2000 && diff < 3000)) {
- reg->clk = (((sdiv - 2) << 16) | 0x00003100);
- return oclk;
- }
- }
-
- if (!pll) {
- NV_ERROR(drm, "bad freq %02x: %d %d\n", clk, khz, sclk);
- return -ERANGE;
- }
-
- break;
- }
-
- ret = nvbios_pll_parse(bios, pll, &limits);
- if (ret)
- return ret;
-
- limits.refclk = read_clk(dev, clk - 0x10, true);
- if (!limits.refclk)
- return -EINVAL;
-
- ret = nva3_calc_pll(dev, &limits, khz, &N, NULL, &M, &P);
- if (ret >= 0) {
- reg->clk = nv_rd32(device, 0x4120 + (clk * 4));
- reg->pll = (P << 16) | (N << 8) | M;
- }
-
- return ret;
-}
-
-static void
-prog_pll(struct drm_device *dev, int clk, u32 pll, struct creg *reg)
-{
- struct nouveau_device *device = nouveau_dev(dev);
- struct nouveau_drm *drm = nouveau_drm(dev);
- const u32 src0 = 0x004120 + (clk * 4);
- const u32 src1 = 0x004160 + (clk * 4);
- const u32 ctrl = pll + 0;
- const u32 coef = pll + 4;
-
- if (!reg->clk && !reg->pll) {
- NV_DEBUG(drm, "no clock for %02x\n", clk);
- return;
- }
-
- if (reg->pll) {
- nv_mask(device, src0, 0x00000101, 0x00000101);
- nv_wr32(device, coef, reg->pll);
- nv_mask(device, ctrl, 0x00000015, 0x00000015);
- nv_mask(device, ctrl, 0x00000010, 0x00000000);
- nv_wait(device, ctrl, 0x00020000, 0x00020000);
- nv_mask(device, ctrl, 0x00000010, 0x00000010);
- nv_mask(device, ctrl, 0x00000008, 0x00000000);
- nv_mask(device, src1, 0x00000100, 0x00000000);
- nv_mask(device, src1, 0x00000001, 0x00000000);
- } else {
- nv_mask(device, src1, 0x003f3141, 0x00000101 | reg->clk);
- nv_mask(device, ctrl, 0x00000018, 0x00000018);
- udelay(20);
- nv_mask(device, ctrl, 0x00000001, 0x00000000);
- nv_mask(device, src0, 0x00000100, 0x00000000);
- nv_mask(device, src0, 0x00000001, 0x00000000);
- }
-}
-
-static void
-prog_clk(struct drm_device *dev, int clk, struct creg *reg)
-{
- struct nouveau_device *device = nouveau_dev(dev);
- struct nouveau_drm *drm = nouveau_drm(dev);
-
- if (!reg->clk) {
- NV_DEBUG(drm, "no clock for %02x\n", clk);
- return;
- }
-
- nv_mask(device, 0x004120 + (clk * 4), 0x003f3141, 0x00000101 | reg->clk);
-}
-
-int
-nva3_pm_clocks_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
-{
- perflvl->core = read_pll(dev, 0x00, 0x4200);
- perflvl->shader = read_pll(dev, 0x01, 0x4220);
- perflvl->memory = read_pll(dev, 0x02, 0x4000);
- perflvl->unka0 = read_clk(dev, 0x20, false);
- perflvl->vdec = read_clk(dev, 0x21, false);
- perflvl->daemon = read_clk(dev, 0x25, false);
- perflvl->copy = perflvl->core;
- return 0;
-}
-
-struct nva3_pm_state {
- struct nouveau_pm_level *perflvl;
-
- struct creg nclk;
- struct creg sclk;
- struct creg vdec;
- struct creg unka0;
-
- struct creg mclk;
- u8 *rammap;
- u8 rammap_ver;
- u8 rammap_len;
- u8 *ramcfg;
- u8 ramcfg_len;
- u32 r004018;
- u32 r100760;
-};
-
-void *
-nva3_pm_clocks_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl)
-{
- struct nva3_pm_state *info;
- u8 ramcfg_cnt;
- int ret;
-
- info = kzalloc(sizeof(*info), GFP_KERNEL);
- if (!info)
- return ERR_PTR(-ENOMEM);
-
- ret = calc_clk(dev, 0x10, 0x4200, perflvl->core, &info->nclk);
- if (ret < 0)
- goto out;
-
- ret = calc_clk(dev, 0x11, 0x4220, perflvl->shader, &info->sclk);
- if (ret < 0)
- goto out;
-
- ret = calc_clk(dev, 0x12, 0x4000, perflvl->memory, &info->mclk);
- if (ret < 0)
- goto out;
-
- ret = calc_clk(dev, 0x20, 0x0000, perflvl->unka0, &info->unka0);
- if (ret < 0)
- goto out;
-
- ret = calc_clk(dev, 0x21, 0x0000, perflvl->vdec, &info->vdec);
- if (ret < 0)
- goto out;
-
- info->rammap = nouveau_perf_rammap(dev, perflvl->memory,
- &info->rammap_ver,
- &info->rammap_len,
- &ramcfg_cnt, &info->ramcfg_len);
- if (info->rammap_ver != 0x10 || info->rammap_len < 5)
- info->rammap = NULL;
-
- info->ramcfg = nouveau_perf_ramcfg(dev, perflvl->memory,
- &info->rammap_ver,
- &info->ramcfg_len);
- if (info->rammap_ver != 0x10)
- info->ramcfg = NULL;
-
- info->perflvl = perflvl;
-out:
- if (ret < 0) {
- kfree(info);
- info = ERR_PTR(ret);
- }
- return info;
-}
-
-static bool
-nva3_pm_grcp_idle(void *data)
-{
- struct drm_device *dev = data;
- struct nouveau_device *device = nouveau_dev(dev);
-
- if (!(nv_rd32(device, 0x400304) & 0x00000001))
- return true;
- if (nv_rd32(device, 0x400308) == 0x0050001c)
- return true;
- return false;
-}
-
-static void
-mclk_precharge(struct nouveau_mem_exec_func *exec)
-{
- struct nouveau_device *device = nouveau_dev(exec->dev);
- nv_wr32(device, 0x1002d4, 0x00000001);
-}
-
-static void
-mclk_refresh(struct nouveau_mem_exec_func *exec)
-{
- struct nouveau_device *device = nouveau_dev(exec->dev);
- nv_wr32(device, 0x1002d0, 0x00000001);
-}
-
-static void
-mclk_refresh_auto(struct nouveau_mem_exec_func *exec, bool enable)
-{
- struct nouveau_device *device = nouveau_dev(exec->dev);
- nv_wr32(device, 0x100210, enable ? 0x80000000 : 0x00000000);
-}
-
-static void
-mclk_refresh_self(struct nouveau_mem_exec_func *exec, bool enable)
-{
- struct nouveau_device *device = nouveau_dev(exec->dev);
- nv_wr32(device, 0x1002dc, enable ? 0x00000001 : 0x00000000);
-}
-
-static void
-mclk_wait(struct nouveau_mem_exec_func *exec, u32 nsec)
-{
- struct nouveau_device *device = nouveau_dev(exec->dev);
- volatile u32 post = nv_rd32(device, 0); (void)post;
- udelay((nsec + 500) / 1000);
-}
-
-static u32
-mclk_mrg(struct nouveau_mem_exec_func *exec, int mr)
-{
- struct nouveau_device *device = nouveau_dev(exec->dev);
- if (mr <= 1)
- return nv_rd32(device, 0x1002c0 + ((mr - 0) * 4));
- if (mr <= 3)
- return nv_rd32(device, 0x1002e0 + ((mr - 2) * 4));
- return 0;
-}
-
-static void
-mclk_mrs(struct nouveau_mem_exec_func *exec, int mr, u32 data)
-{
- struct nouveau_device *device = nouveau_dev(exec->dev);
- struct nouveau_fb *pfb = nouveau_fb(device);
- if (mr <= 1) {
- if (pfb->ram->ranks > 1)
- nv_wr32(device, 0x1002c8 + ((mr - 0) * 4), data);
- nv_wr32(device, 0x1002c0 + ((mr - 0) * 4), data);
- } else
- if (mr <= 3) {
- if (pfb->ram->ranks > 1)
- nv_wr32(device, 0x1002e8 + ((mr - 2) * 4), data);
- nv_wr32(device, 0x1002e0 + ((mr - 2) * 4), data);
- }
-}
-
-static void
-mclk_clock_set(struct nouveau_mem_exec_func *exec)
-{
- struct nouveau_device *device = nouveau_dev(exec->dev);
- struct nva3_pm_state *info = exec->priv;
- u32 ctrl;
-
- ctrl = nv_rd32(device, 0x004000);
- if (!(ctrl & 0x00000008) && info->mclk.pll) {
- nv_wr32(device, 0x004000, (ctrl |= 0x00000008));
- nv_mask(device, 0x1110e0, 0x00088000, 0x00088000);
- nv_wr32(device, 0x004018, 0x00001000);
- nv_wr32(device, 0x004000, (ctrl &= ~0x00000001));
- nv_wr32(device, 0x004004, info->mclk.pll);
- nv_wr32(device, 0x004000, (ctrl |= 0x00000001));
- udelay(64);
- nv_wr32(device, 0x004018, 0x00005000 | info->r004018);
- udelay(20);
- } else
- if (!info->mclk.pll) {
- nv_mask(device, 0x004168, 0x003f3040, info->mclk.clk);
- nv_wr32(device, 0x004000, (ctrl |= 0x00000008));
- nv_mask(device, 0x1110e0, 0x00088000, 0x00088000);
- nv_wr32(device, 0x004018, 0x0000d000 | info->r004018);
- }
-
- if (info->rammap) {
- if (info->ramcfg && (info->rammap[4] & 0x08)) {
- u32 unk5a0 = (ROM16(info->ramcfg[5]) << 8) |
- info->ramcfg[5];
- u32 unk5a4 = ROM16(info->ramcfg[7]);
- u32 unk804 = (info->ramcfg[9] & 0xf0) << 16 |
- (info->ramcfg[3] & 0x0f) << 16 |
- (info->ramcfg[9] & 0x0f) |
- 0x80000000;
- nv_wr32(device, 0x1005a0, unk5a0);
- nv_wr32(device, 0x1005a4, unk5a4);
- nv_wr32(device, 0x10f804, unk804);
- nv_mask(device, 0x10053c, 0x00001000, 0x00000000);
- } else {
- nv_mask(device, 0x10053c, 0x00001000, 0x00001000);
- nv_mask(device, 0x10f804, 0x80000000, 0x00000000);
- nv_mask(device, 0x100760, 0x22222222, info->r100760);
- nv_mask(device, 0x1007a0, 0x22222222, info->r100760);
- nv_mask(device, 0x1007e0, 0x22222222, info->r100760);
- }
- }
-
- if (info->mclk.pll) {
- nv_mask(device, 0x1110e0, 0x00088000, 0x00011000);
- nv_wr32(device, 0x004000, (ctrl &= ~0x00000008));
- }
-}
-
-static void
-mclk_timing_set(struct nouveau_mem_exec_func *exec)
-{
- struct nouveau_device *device = nouveau_dev(exec->dev);
- struct nva3_pm_state *info = exec->priv;
- struct nouveau_pm_level *perflvl = info->perflvl;
- int i;
-
- for (i = 0; i < 9; i++)
- nv_wr32(device, 0x100220 + (i * 4), perflvl->timing.reg[i]);
-
- if (info->ramcfg) {
- u32 data = (info->ramcfg[2] & 0x08) ? 0x00000000 : 0x00001000;
- nv_mask(device, 0x100200, 0x00001000, data);
- }
-
- if (info->ramcfg) {
- u32 unk714 = nv_rd32(device, 0x100714) & ~0xf0000010;
- u32 unk718 = nv_rd32(device, 0x100718) & ~0x00000100;
- u32 unk71c = nv_rd32(device, 0x10071c) & ~0x00000100;
- if ( (info->ramcfg[2] & 0x20))
- unk714 |= 0xf0000000;
- if (!(info->ramcfg[2] & 0x04))
- unk714 |= 0x00000010;
- nv_wr32(device, 0x100714, unk714);
-
- if (info->ramcfg[2] & 0x01)
- unk71c |= 0x00000100;
- nv_wr32(device, 0x10071c, unk71c);
-
- if (info->ramcfg[2] & 0x02)
- unk718 |= 0x00000100;
- nv_wr32(device, 0x100718, unk718);
-
- if (info->ramcfg[2] & 0x10)
- nv_wr32(device, 0x111100, 0x48000000); /*XXX*/
- }
-}
-
-static void
-prog_mem(struct drm_device *dev, struct nva3_pm_state *info)
-{
- struct nouveau_device *device = nouveau_dev(dev);
- struct nouveau_mem_exec_func exec = {
- .dev = dev,
- .precharge = mclk_precharge,
- .refresh = mclk_refresh,
- .refresh_auto = mclk_refresh_auto,
- .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(device, 0x004000);
- if (ctrl & 0x00000008) {
- if (info->mclk.pll) {
- nv_mask(device, 0x004128, 0x00000101, 0x00000101);
- nv_wr32(device, 0x004004, info->mclk.pll);
- nv_wr32(device, 0x004000, (ctrl |= 0x00000001));
- nv_wr32(device, 0x004000, (ctrl &= 0xffffffef));
- nv_wait(device, 0x004000, 0x00020000, 0x00020000);
- nv_wr32(device, 0x004000, (ctrl |= 0x00000010));
- nv_wr32(device, 0x004018, 0x00005000 | info->r004018);
- nv_wr32(device, 0x004000, (ctrl |= 0x00000004));
- }
- } else {
- u32 ssel = 0x00000101;
- if (info->mclk.clk)
- ssel |= info->mclk.clk;
- else
- ssel |= 0x00080000; /* 324MHz, shouldn't matter... */
- nv_mask(device, 0x004168, 0x003f3141, ctrl);
- }
-
- if (info->ramcfg) {
- if (info->ramcfg[2] & 0x10) {
- nv_mask(device, 0x111104, 0x00000600, 0x00000000);
- } else {
- nv_mask(device, 0x111100, 0x40000000, 0x40000000);
- nv_mask(device, 0x111104, 0x00000180, 0x00000000);
- }
- }
- if (info->rammap && !(info->rammap[4] & 0x02))
- nv_mask(device, 0x100200, 0x00000800, 0x00000000);
- nv_wr32(device, 0x611200, 0x00003300);
- if (!(info->ramcfg[2] & 0x10))
- nv_wr32(device, 0x111100, 0x4c020000); /*XXX*/
-
- nouveau_mem_exec(&exec, info->perflvl);
-
- nv_wr32(device, 0x611200, 0x00003330);
- if (info->rammap && (info->rammap[4] & 0x02))
- nv_mask(device, 0x100200, 0x00000800, 0x00000800);
- if (info->ramcfg) {
- if (info->ramcfg[2] & 0x10) {
- nv_mask(device, 0x111104, 0x00000180, 0x00000180);
- nv_mask(device, 0x111100, 0x40000000, 0x00000000);
- } else {
- nv_mask(device, 0x111104, 0x00000600, 0x00000600);
- }
- }
-
- if (info->mclk.pll) {
- nv_mask(device, 0x004168, 0x00000001, 0x00000000);
- nv_mask(device, 0x004168, 0x00000100, 0x00000000);
- } else {
- nv_mask(device, 0x004000, 0x00000001, 0x00000000);
- nv_mask(device, 0x004128, 0x00000001, 0x00000000);
- nv_mask(device, 0x004128, 0x00000100, 0x00000000);
- }
-}
-
-int
-nva3_pm_clocks_set(struct drm_device *dev, void *pre_state)
-{
- struct nouveau_device *device = nouveau_dev(dev);
- struct nouveau_drm *drm = nouveau_drm(dev);
- struct nva3_pm_state *info = pre_state;
- int ret = -EAGAIN;
-
- /* prevent any new grctx switches from starting */
- nv_wr32(device, 0x400324, 0x00000000);
- nv_wr32(device, 0x400328, 0x0050001c); /* wait flag 0x1c */
- /* wait for any pending grctx switches to complete */
- if (!nv_wait_cb(device, nva3_pm_grcp_idle, dev)) {
- NV_ERROR(drm, "pm: ctxprog didn't go idle\n");
- goto cleanup;
- }
- /* freeze PFIFO */
- nv_mask(device, 0x002504, 0x00000001, 0x00000001);
- if (!nv_wait(device, 0x002504, 0x00000010, 0x00000010)) {
- NV_ERROR(drm, "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(device, 0x002504, 0x00000001, 0x00000000);
- /* restore ctxprog to normal */
- nv_wr32(device, 0x400324, 0x00000000);
- nv_wr32(device, 0x400328, 0x0070009c); /* set flag 0x1c */
- /* unblock it if necessary */
- if (nv_rd32(device, 0x400308) == 0x0050001c)
- nv_mask(device, 0x400824, 0x10000000, 0x10000000);
- kfree(info);
- return ret;
-}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 01:31:04 +0000