gk104.c

  1/*
  2 * Copyright 2012 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#include "priv.h"
 25#include <subdev/timer.h>
 26
 27static void
 28gk104_privring_intr_hub(struct nvkm_subdev *privring, int i)
 29{
 30	struct nvkm_device *device = privring->device;
 31	u32 addr = nvkm_rd32(device, 0x122120 + (i * 0x0800));
 32	u32 data = nvkm_rd32(device, 0x122124 + (i * 0x0800));
 33	u32 stat = nvkm_rd32(device, 0x122128 + (i * 0x0800));
 34	nvkm_debug(privring, "HUB%d: %06x %08x (%08x)\n", i, addr, data, stat);
 35}
 36
 37static void
 38gk104_privring_intr_rop(struct nvkm_subdev *privring, int i)
 39{
 40	struct nvkm_device *device = privring->device;
 41	u32 addr = nvkm_rd32(device, 0x124120 + (i * 0x0800));
 42	u32 data = nvkm_rd32(device, 0x124124 + (i * 0x0800));
 43	u32 stat = nvkm_rd32(device, 0x124128 + (i * 0x0800));
 44	nvkm_debug(privring, "ROP%d: %06x %08x (%08x)\n", i, addr, data, stat);
 45}
 46
 47static void
 48gk104_privring_intr_gpc(struct nvkm_subdev *privring, int i)
 49{
 50	struct nvkm_device *device = privring->device;
 51	u32 addr = nvkm_rd32(device, 0x128120 + (i * 0x0800));
 52	u32 data = nvkm_rd32(device, 0x128124 + (i * 0x0800));
 53	u32 stat = nvkm_rd32(device, 0x128128 + (i * 0x0800));
 54	nvkm_debug(privring, "GPC%d: %06x %08x (%08x)\n", i, addr, data, stat);
 55}
 56
 57void
 58gk104_privring_intr(struct nvkm_subdev *privring)
 59{
 60	struct nvkm_device *device = privring->device;
 61	u32 intr0 = nvkm_rd32(device, 0x120058);
 62	u32 intr1 = nvkm_rd32(device, 0x12005c);
 63	u32 hubnr = nvkm_rd32(device, 0x120070);
 64	u32 ropnr = nvkm_rd32(device, 0x120074);
 65	u32 gpcnr = nvkm_rd32(device, 0x120078);
 66	u32 i;
 67
 68	for (i = 0; (intr0 & 0x0000ff00) && i < hubnr; i++) {
 69		u32 stat = 0x00000100 << i;
 70		if (intr0 & stat) {
 71			gk104_privring_intr_hub(privring, i);
 72			intr0 &= ~stat;
 73		}
 74	}
 75
 76	for (i = 0; (intr0 & 0xffff0000) && i < ropnr; i++) {
 77		u32 stat = 0x00010000 << i;
 78		if (intr0 & stat) {
 79			gk104_privring_intr_rop(privring, i);
 80			intr0 &= ~stat;
 81		}
 82	}
 83
 84	for (i = 0; intr1 && i < gpcnr; i++) {
 85		u32 stat = 0x00000001 << i;
 86		if (intr1 & stat) {
 87			gk104_privring_intr_gpc(privring, i);
 88			intr1 &= ~stat;
 89		}
 90	}
 91
 92	nvkm_mask(device, 0x12004c, 0x0000003f, 0x00000002);
 93	nvkm_msec(device, 2000,
 94		if (!(nvkm_rd32(device, 0x12004c) & 0x0000003f))
 95			break;
 96	);
 97}
 98
 99static int
100gk104_privring_init(struct nvkm_subdev *privring)
101{
102	struct nvkm_device *device = privring->device;
103	nvkm_mask(device, 0x122318, 0x0003ffff, 0x00001000);
104	nvkm_mask(device, 0x12231c, 0x0003ffff, 0x00000200);
105	nvkm_mask(device, 0x122310, 0x0003ffff, 0x00000800);
106	nvkm_mask(device, 0x122348, 0x0003ffff, 0x00000100);
107	nvkm_mask(device, 0x1223b0, 0x0003ffff, 0x00000fff);
108	nvkm_mask(device, 0x122348, 0x0003ffff, 0x00000200);
109	nvkm_mask(device, 0x122358, 0x0003ffff, 0x00002880);
110	return 0;
111}
112
113static const struct nvkm_subdev_func
114gk104_privring = {
115	.preinit = gk104_privring_init,
116	.init = gk104_privring_init,
117	.intr = gk104_privring_intr,
118};
119
120int
121gk104_privring_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
122		   struct nvkm_subdev **pprivring)
123{
124	return nvkm_subdev_new_(&gk104_privring, device, type, inst, pprivring);
125}