/*
 * Copyright 2012 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Ben Skeggs
 */
#include "priv.h"
#include "fuc/gt215.fuc3.h"

#include <core/client.h>
#include <core/enum.h>
#include <core/gpuobj.h>
#include <engine/fifo.h>

#include <nvif/class.h>

static const struct nvkm_enum
gt215_ce_isr_error_name[] = {
        { 0x0001, "ILLEGAL_MTHD" },
        { 0x0002, "INVALID_ENUM" },
        { 0x0003, "INVALID_BITFIELD" },
        {}
};

void
gt215_ce_intr(struct nvkm_falcon *ce, struct nvkm_chan *chan)
{
        struct nvkm_subdev *subdev = &ce->engine.subdev;
        struct nvkm_device *device = subdev->device;
        const u32 base = subdev->inst * 0x1000;
        u32 ssta = nvkm_rd32(device, 0x104040 + base) & 0x0000ffff;
        u32 addr = nvkm_rd32(device, 0x104040 + base) >> 16;
        u32 mthd = (addr & 0x07ff) << 2;
        u32 subc = (addr & 0x3800) >> 11;
        u32 data = nvkm_rd32(device, 0x104044 + base);
        const struct nvkm_enum *en =
                nvkm_enum_find(gt215_ce_isr_error_name, ssta);

        nvkm_error(subdev, "DISPATCH_ERROR %04x [%s] ch %d [%010llx %s] "
                           "subc %d mthd %04x data %08x\n", ssta,
                   en ? en->name : "", chan ? chan->id : -1,
                   chan ? chan->inst->addr : 0,
                   chan ? chan->name : "unknown",
                   subc, mthd, data);
}

static const struct nvkm_falcon_func
gt215_ce = {
        .code.data = gt215_ce_code,
        .code.size = sizeof(gt215_ce_code),
        .data.data = gt215_ce_data,
        .data.size = sizeof(gt215_ce_data),
        .intr = gt215_ce_intr,
        .sclass = {
                { -1, -1, GT212_DMA },
                {}
        }
};

int
gt215_ce_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
             struct nvkm_engine **pengine)
{
        return nvkm_falcon_new_(&gt215_ce, device, type, -1,
                                (device->chipset != 0xaf), 0x104000, pengine);
}