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1/*2 * Copyright 2012 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs23 */24#include "priv.h"25#include <subdev/timer.h>26 27static void28gf100_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 * 0x0400));32 u32 data = nvkm_rd32(device, 0x122124 + (i * 0x0400));33 u32 stat = nvkm_rd32(device, 0x122128 + (i * 0x0400));34 nvkm_debug(privring, "HUB%d: %06x %08x (%08x)\n", i, addr, data, stat);35}36 37static void38gf100_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 * 0x0400));42 u32 data = nvkm_rd32(device, 0x124124 + (i * 0x0400));43 u32 stat = nvkm_rd32(device, 0x124128 + (i * 0x0400));44 nvkm_debug(privring, "ROP%d: %06x %08x (%08x)\n", i, addr, data, stat);45}46 47static void48gf100_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 * 0x0400));52 u32 data = nvkm_rd32(device, 0x128124 + (i * 0x0400));53 u32 stat = nvkm_rd32(device, 0x128128 + (i * 0x0400));54 nvkm_debug(privring, "GPC%d: %06x %08x (%08x)\n", i, addr, data, stat);55}56 57void58gf100_privring_intr(struct nvkm_subdev *privring)59{60 struct nvkm_device *device = privring->device;61 u32 intr0 = nvkm_rd32(device, 0x121c58);62 u32 intr1 = nvkm_rd32(device, 0x121c5c);63 u32 hubnr = nvkm_rd32(device, 0x121c70);64 u32 ropnr = nvkm_rd32(device, 0x121c74);65 u32 gpcnr = nvkm_rd32(device, 0x121c78);66 u32 i;67 68 for (i = 0; (intr0 & 0x0000ff00) && i < hubnr; i++) {69 u32 stat = 0x00000100 << i;70 if (intr0 & stat) {71 gf100_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 gf100_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 gf100_privring_intr_gpc(privring, i);88 intr1 &= ~stat;89 }90 }91 92 nvkm_mask(device, 0x121c4c, 0x0000003f, 0x00000002);93 nvkm_msec(device, 2000,94 if (!(nvkm_rd32(device, 0x121c4c) & 0x0000003f))95 break;96 );97}98 99static int100gf100_privring_init(struct nvkm_subdev *privring)101{102 struct nvkm_device *device = privring->device;103 nvkm_mask(device, 0x122310, 0x0003ffff, 0x00000800);104 nvkm_wr32(device, 0x12232c, 0x00100064);105 nvkm_wr32(device, 0x122330, 0x00100064);106 nvkm_wr32(device, 0x122334, 0x00100064);107 nvkm_mask(device, 0x122348, 0x0003ffff, 0x00000100);108 return 0;109}110 111static const struct nvkm_subdev_func112gf100_privring = {113 .init = gf100_privring_init,114 .intr = gf100_privring_intr,115};116 117int118gf100_privring_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,119 struct nvkm_subdev **pprivring)120{121 return nvkm_subdev_new_(&gf100_privring, device, type, inst, pprivring);122}123