109 lines
3.2 KiB
C
109 lines
3.2 KiB
C
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/*
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* Copyright 2021 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "priv.h"
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#include <nvif/class.h>
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static void
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tu102_vfn_intr_reset(struct nvkm_intr *intr, int leaf, u32 mask)
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{
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struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);
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nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1000 + (leaf * 4), mask);
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}
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static void
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tu102_vfn_intr_allow(struct nvkm_intr *intr, int leaf, u32 mask)
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{
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struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);
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nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1200 + (leaf * 4), mask);
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}
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static void
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tu102_vfn_intr_block(struct nvkm_intr *intr, int leaf, u32 mask)
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{
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struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);
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nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1400 + (leaf * 4), mask);
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}
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static void
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tu102_vfn_intr_rearm(struct nvkm_intr *intr)
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{
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struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);
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nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1608, 0x0000000f);
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}
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static void
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tu102_vfn_intr_unarm(struct nvkm_intr *intr)
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{
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struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);
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nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1610, 0x0000000f);
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}
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static bool
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tu102_vfn_intr_pending(struct nvkm_intr *intr)
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{
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struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);
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struct nvkm_device *device = vfn->subdev.device;
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u32 intr_top = nvkm_rd32(device, vfn->addr.priv + 0x1600);
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int pending = 0, leaf;
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for (leaf = 0; leaf < 8; leaf++) {
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if (intr_top & BIT(leaf / 2)) {
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intr->stat[leaf] = nvkm_rd32(device, vfn->addr.priv + 0x1000 + (leaf * 4));
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if (intr->stat[leaf])
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pending++;
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} else {
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intr->stat[leaf] = 0;
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}
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}
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return pending != 0;
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}
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const struct nvkm_intr_func
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tu102_vfn_intr = {
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.pending = tu102_vfn_intr_pending,
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.unarm = tu102_vfn_intr_unarm,
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.rearm = tu102_vfn_intr_rearm,
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.block = tu102_vfn_intr_block,
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.allow = tu102_vfn_intr_allow,
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.reset = tu102_vfn_intr_reset,
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};
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static const struct nvkm_vfn_func
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tu102_vfn = {
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.intr = &tu102_vfn_intr,
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.user = { 0x030000, 0x010000, { -1, -1, TURING_USERMODE_A } },
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};
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int
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tu102_vfn_new(struct nvkm_device *device,
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enum nvkm_subdev_type type, int inst, struct nvkm_vfn **pvfn)
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{
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return nvkm_vfn_new_(&tu102_vfn, device, type, inst, 0xb80000, pvfn);
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}
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