gk104.c

  1/*
  2 * Copyright 2013 Red Hat Inc.
  3 *
  4 * Permission is hereby granted, free of charge, to any person obtaining a
  5 * copy of this software and associated documentation files (the "Software"),
  6 * to deal in the Software without restriction, including without limitation
  7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8 * and/or sell copies of the Software, and to permit persons to whom the
  9 * Software is furnished to do so, subject to the following conditions:
 10 *
 11 * The above copyright notice and this permission notice shall be included in
 12 * all copies or substantial portions of the Software.
 13 *
 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 20 * OTHER DEALINGS IN THE SOFTWARE.
 21 *
 22 * Authors: Ben Skeggs
 23 */
 24#define gf119_pmu_code gk104_pmu_code
 25#define gf119_pmu_data gk104_pmu_data
 26#include "priv.h"
 27#include "fuc/gf119.fuc4.h"
 28
 29#include <core/option.h>
 30#include <subdev/fuse.h>
 31#include <subdev/timer.h>
 32
 33static void
 34magic_(struct nvkm_device *device, u32 ctrl, int size)
 35{
 36	nvkm_wr32(device, 0x00c800, 0x00000000);
 37	nvkm_wr32(device, 0x00c808, 0x00000000);
 38	nvkm_wr32(device, 0x00c800, ctrl);
 39	nvkm_msec(device, 2000,
 40		if (nvkm_rd32(device, 0x00c800) & 0x40000000) {
 41			while (size--)
 42				nvkm_wr32(device, 0x00c804, 0x00000000);
 43			break;
 44		}
 45	);
 46	nvkm_wr32(device, 0x00c800, 0x00000000);
 47}
 48
 49static void
 50magic(struct nvkm_device *device, u32 ctrl)
 51{
 52	magic_(device, 0x8000a41f | ctrl, 6);
 53	magic_(device, 0x80000421 | ctrl, 1);
 54}
 55
 56static void
 57gk104_pmu_pgob(struct nvkm_pmu *pmu, bool enable)
 58{
 59	struct nvkm_device *device = pmu->subdev.device;
 60
 61	if (!(nvkm_fuse_read(device->fuse, 0x31c) & 0x00000001))
 62		return;
 63
 64	nvkm_mask(device, 0x000200, 0x00001000, 0x00000000);
 65	nvkm_rd32(device, 0x000200);
 66	nvkm_mask(device, 0x000200, 0x08000000, 0x08000000);
 67	msleep(50);
 68
 69	nvkm_mask(device, 0x10a78c, 0x00000002, 0x00000002);
 70	nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000001);
 71	nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000000);
 72
 73	nvkm_mask(device, 0x020004, 0xc0000000, enable ? 0xc0000000 : 0x40000000);
 74	msleep(50);
 75
 76	nvkm_mask(device, 0x10a78c, 0x00000002, 0x00000000);
 77	nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000001);
 78	nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000000);
 79
 80	nvkm_mask(device, 0x000200, 0x08000000, 0x00000000);
 81	nvkm_mask(device, 0x000200, 0x00001000, 0x00001000);
 82	nvkm_rd32(device, 0x000200);
 83
 84	if (nvkm_boolopt(device->cfgopt, "War00C800_0", true)) {
 85		switch (device->chipset) {
 86		case 0xe4:
 87			magic(device, 0x04000000);
 88			magic(device, 0x06000000);
 89			magic(device, 0x0c000000);
 90			magic(device, 0x0e000000);
 91			break;
 92		case 0xe6:
 93			magic(device, 0x02000000);
 94			magic(device, 0x04000000);
 95			magic(device, 0x0a000000);
 96			break;
 97		case 0xe7:
 98			magic(device, 0x02000000);
 99			break;
100		default:
101			break;
102		}
103	}
104}
105
106static const struct nvkm_pmu_func
107gk104_pmu = {
108	.flcn = &gt215_pmu_flcn,
109	.code.data = gk104_pmu_code,
110	.code.size = sizeof(gk104_pmu_code),
111	.data.data = gk104_pmu_data,
112	.data.size = sizeof(gk104_pmu_data),
113	.enabled = gf100_pmu_enabled,
114	.reset = gf100_pmu_reset,
115	.init = gt215_pmu_init,
116	.fini = gt215_pmu_fini,
117	.intr = gt215_pmu_intr,
118	.send = gt215_pmu_send,
119	.recv = gt215_pmu_recv,
120	.pgob = gk104_pmu_pgob,
121};
122
123static const struct nvkm_pmu_fwif
124gk104_pmu_fwif[] = {
125	{ -1, gf100_pmu_nofw, &gk104_pmu },
126	{}
127};
128
129int
130gk104_pmu_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
131	      struct nvkm_pmu **ppmu)
132{
133	return nvkm_pmu_new_(gk104_pmu_fwif, device, type, inst, ppmu);
134}