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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 26const struct nvkm_mc_map27nv04_mc_reset[] = {28 { 0x00001000, NVKM_ENGINE_GR },29 { 0x00000100, NVKM_ENGINE_FIFO },30 {}31};32 33static void34nv04_mc_device_disable(struct nvkm_mc *mc, u32 mask)35{36 nvkm_mask(mc->subdev.device, 0x000200, mask, 0x00000000);37}38 39static void40nv04_mc_device_enable(struct nvkm_mc *mc, u32 mask)41{42 struct nvkm_device *device = mc->subdev.device;43 44 nvkm_mask(device, 0x000200, mask, mask);45 nvkm_rd32(device, 0x000200);46}47 48static bool49nv04_mc_device_enabled(struct nvkm_mc *mc, u32 mask)50{51 return (nvkm_rd32(mc->subdev.device, 0x000200) & mask) == mask;52}53 54const struct nvkm_mc_device_func55nv04_mc_device = {56 .enabled = nv04_mc_device_enabled,57 .enable = nv04_mc_device_enable,58 .disable = nv04_mc_device_disable,59};60 61static const struct nvkm_intr_data62nv04_mc_intrs[] = {63 { NVKM_ENGINE_DISP , 0, 0, 0x01010000, true },64 { NVKM_ENGINE_GR , 0, 0, 0x00001000, true },65 { NVKM_ENGINE_FIFO , 0, 0, 0x00000100 },66 { NVKM_SUBDEV_BUS , 0, 0, 0x10000000, true },67 { NVKM_SUBDEV_TIMER, 0, 0, 0x00100000, true },68 {}69};70 71void72nv04_mc_intr_rearm(struct nvkm_intr *intr)73{74 struct nvkm_mc *mc = container_of(intr, typeof(*mc), intr);75 int leaf;76 77 for (leaf = 0; leaf < intr->leaves; leaf++)78 nvkm_wr32(mc->subdev.device, 0x000140 + (leaf * 4), 0x00000001);79}80 81void82nv04_mc_intr_unarm(struct nvkm_intr *intr)83{84 struct nvkm_mc *mc = container_of(intr, typeof(*mc), intr);85 int leaf;86 87 for (leaf = 0; leaf < intr->leaves; leaf++)88 nvkm_wr32(mc->subdev.device, 0x000140 + (leaf * 4), 0x00000000);89 90 nvkm_rd32(mc->subdev.device, 0x000140);91}92 93bool94nv04_mc_intr_pending(struct nvkm_intr *intr)95{96 struct nvkm_mc *mc = container_of(intr, typeof(*mc), intr);97 bool pending = false;98 int leaf;99 100 for (leaf = 0; leaf < intr->leaves; leaf++) {101 intr->stat[leaf] = nvkm_rd32(mc->subdev.device, 0x000100 + (leaf * 4));102 if (intr->stat[leaf])103 pending = true;104 }105 106 return pending;107}108 109const struct nvkm_intr_func110nv04_mc_intr = {111 .pending = nv04_mc_intr_pending,112 .unarm = nv04_mc_intr_unarm,113 .rearm = nv04_mc_intr_rearm,114};115 116void117nv04_mc_init(struct nvkm_mc *mc)118{119 struct nvkm_device *device = mc->subdev.device;120 nvkm_wr32(device, 0x000200, 0xffffffff); /* everything enabled */121 nvkm_wr32(device, 0x001850, 0x00000001); /* disable rom access */122}123 124static const struct nvkm_mc_func125nv04_mc = {126 .init = nv04_mc_init,127 .intr = &nv04_mc_intr,128 .intrs = nv04_mc_intrs,129 .device = &nv04_mc_device,130 .reset = nv04_mc_reset,131};132 133int134nv04_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc)135{136 return nvkm_mc_new_(&nv04_mc, device, type, inst, pmc);137}138