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1/*2 * Copyright 2021 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#include "priv.h"23 24#include <subdev/gsp.h>25 26#include <nvif/class.h>27 28static void29tu102_vfn_intr_reset(struct nvkm_intr *intr, int leaf, u32 mask)30{31 struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);32 33 nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1000 + (leaf * 4), mask);34}35 36static void37tu102_vfn_intr_allow(struct nvkm_intr *intr, int leaf, u32 mask)38{39 struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);40 41 nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1200 + (leaf * 4), mask);42}43 44static void45tu102_vfn_intr_block(struct nvkm_intr *intr, int leaf, u32 mask)46{47 struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);48 49 nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1400 + (leaf * 4), mask);50}51 52static void53tu102_vfn_intr_rearm(struct nvkm_intr *intr)54{55 struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);56 57 nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1608, 0x0000000f);58}59 60static void61tu102_vfn_intr_unarm(struct nvkm_intr *intr)62{63 struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);64 65 nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1610, 0x0000000f);66}67 68static bool69tu102_vfn_intr_pending(struct nvkm_intr *intr)70{71 struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);72 struct nvkm_device *device = vfn->subdev.device;73 u32 intr_top = nvkm_rd32(device, vfn->addr.priv + 0x1600);74 int pending = 0, leaf;75 76 for (leaf = 0; leaf < 8; leaf++) {77 if (intr_top & BIT(leaf / 2)) {78 intr->stat[leaf] = nvkm_rd32(device, vfn->addr.priv + 0x1000 + (leaf * 4));79 if (intr->stat[leaf])80 pending++;81 } else {82 intr->stat[leaf] = 0;83 }84 }85 86 return pending != 0;87}88 89const struct nvkm_intr_func90tu102_vfn_intr = {91 .pending = tu102_vfn_intr_pending,92 .unarm = tu102_vfn_intr_unarm,93 .rearm = tu102_vfn_intr_rearm,94 .block = tu102_vfn_intr_block,95 .allow = tu102_vfn_intr_allow,96 .reset = tu102_vfn_intr_reset,97};98 99static const struct nvkm_vfn_func100tu102_vfn = {101 .intr = &tu102_vfn_intr,102 .user = { 0x030000, 0x010000, { -1, -1, TURING_USERMODE_A } },103};104 105int106tu102_vfn_new(struct nvkm_device *device,107 enum nvkm_subdev_type type, int inst, struct nvkm_vfn **pvfn)108{109 if (nvkm_gsp_rm(device->gsp))110 return r535_vfn_new(&tu102_vfn, device, type, inst, 0xb80000, pvfn);111 112 return nvkm_vfn_new_(&tu102_vfn, device, type, inst, 0xb80000, pvfn);113}114