/*
 * Copyright 2018 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.
 */
#include "core.h"
#include "head.h"

#include <nvif/class.h>
#include <nvif/pushc37b.h>
#include <nvif/timer.h>

#include <nvhw/class/clc37d.h>

#include <nouveau_bo.h>

int
corec37d_wndw_owner(struct nv50_core *core)
{
        struct nvif_push *push = &core->chan.push;
        const u32 windows = 8; /*XXX*/
        int ret, i;

        if ((ret = PUSH_WAIT(push, windows * 2)))
                return ret;

        for (i = 0; i < windows; i++) {
                PUSH_MTHD(push, NVC37D, WINDOW_SET_CONTROL(i),
                          NVDEF(NVC37D, WINDOW_SET_CONTROL, OWNER, HEAD(i >> 1)));
        }

        return 0;
}

int
corec37d_update(struct nv50_core *core, u32 *interlock, bool ntfy)
{
        struct nvif_push *push = &core->chan.push;
        int ret;

        if ((ret = PUSH_WAIT(push, (ntfy ? 2 * 2 : 0) + 5)))
                return ret;

        if (ntfy) {
                PUSH_MTHD(push, NVC37D, SET_NOTIFIER_CONTROL,
                          NVDEF(NVC37D, SET_NOTIFIER_CONTROL, MODE, WRITE) |
                          NVVAL(NVC37D, SET_NOTIFIER_CONTROL, OFFSET, NV50_DISP_CORE_NTFY >> 4) |
                          NVDEF(NVC37D, SET_NOTIFIER_CONTROL, NOTIFY, ENABLE));
        }

        PUSH_MTHD(push, NVC37D, SET_INTERLOCK_FLAGS, interlock[NV50_DISP_INTERLOCK_CURS],
                                SET_WINDOW_INTERLOCK_FLAGS, interlock[NV50_DISP_INTERLOCK_WNDW]);
        PUSH_MTHD(push, NVC37D, UPDATE, 0x00000001 |
                  NVDEF(NVC37D, UPDATE, SPECIAL_HANDLING, NONE) |
                  NVDEF(NVC37D, UPDATE, INHIBIT_INTERRUPTS, FALSE));

        if (ntfy) {
                PUSH_MTHD(push, NVC37D, SET_NOTIFIER_CONTROL,
                          NVDEF(NVC37D, SET_NOTIFIER_CONTROL, NOTIFY, DISABLE));
        }

        return PUSH_KICK(push);
}

int
corec37d_ntfy_wait_done(struct nouveau_bo *bo, u32 offset,
                        struct nvif_device *device)
{
        s64 time = nvif_msec(device, 2000ULL,
                if (NVBO_TD32(bo, offset, NV_DISP_NOTIFIER, _0, STATUS, ==, FINISHED))
                        break;
                usleep_range(1, 2);
        );
        return time < 0 ? time : 0;
}

void
corec37d_ntfy_init(struct nouveau_bo *bo, u32 offset)
{
        NVBO_WR32(bo, offset, NV_DISP_NOTIFIER, _0,
                        NVDEF(NV_DISP_NOTIFIER, _0, STATUS, NOT_BEGUN));
        NVBO_WR32(bo, offset, NV_DISP_NOTIFIER, _1, 0);
        NVBO_WR32(bo, offset, NV_DISP_NOTIFIER, _2, 0);
        NVBO_WR32(bo, offset, NV_DISP_NOTIFIER, _3, 0);
}

int corec37d_caps_init(struct nouveau_drm *drm, struct nv50_disp *disp)
{
        int ret;

        ret = nvif_object_ctor(&disp->disp->object, "dispCaps", 0,
                               disp->core->func->caps_class, NULL, 0, &disp->caps);
        if (ret) {
                NV_ERROR(drm,
                         "Failed to init notifier caps region: %d\n",
                         ret);
                return ret;
        }

        ret = nvif_object_map(&disp->caps, NULL, 0);
        if (ret) {
                NV_ERROR(drm,
                         "Failed to map notifier caps region: %d\n",
                         ret);
                return ret;
        }

        return 0;
}

static int
corec37d_init(struct nv50_core *core)
{
        struct nvif_push *push = &core->chan.push;
        const u32 windows = 8; /*XXX*/
        int ret, i;

        if ((ret = PUSH_WAIT(push, 2 + windows * 5)))
                return ret;

        PUSH_MTHD(push, NVC37D, SET_CONTEXT_DMA_NOTIFIER, core->chan.sync.handle);

        for (i = 0; i < windows; i++) {
                PUSH_MTHD(push, NVC37D, WINDOW_SET_WINDOW_FORMAT_USAGE_BOUNDS(i),
                          NVDEF(NVC37D, WINDOW_SET_WINDOW_FORMAT_USAGE_BOUNDS, RGB_PACKED1BPP, TRUE) |
                          NVDEF(NVC37D, WINDOW_SET_WINDOW_FORMAT_USAGE_BOUNDS, RGB_PACKED2BPP, TRUE) |
                          NVDEF(NVC37D, WINDOW_SET_WINDOW_FORMAT_USAGE_BOUNDS, RGB_PACKED4BPP, TRUE) |
                          NVDEF(NVC37D, WINDOW_SET_WINDOW_FORMAT_USAGE_BOUNDS, RGB_PACKED8BPP, TRUE) |
                          NVDEF(NVC37D, WINDOW_SET_WINDOW_FORMAT_USAGE_BOUNDS, YUV_PACKED422, TRUE),

                                        WINDOW_SET_WINDOW_ROTATED_FORMAT_USAGE_BOUNDS(i), 0x00000000);

                PUSH_MTHD(push, NVC37D, WINDOW_SET_WINDOW_USAGE_BOUNDS(i),
                          NVVAL(NVC37D, WINDOW_SET_WINDOW_USAGE_BOUNDS, MAX_PIXELS_FETCHED_PER_LINE, 0x7fff) |
                          NVDEF(NVC37D, WINDOW_SET_WINDOW_USAGE_BOUNDS, INPUT_LUT, USAGE_1025) |
                          NVDEF(NVC37D, WINDOW_SET_WINDOW_USAGE_BOUNDS, INPUT_SCALER_TAPS, TAPS_2) |
                          NVDEF(NVC37D, WINDOW_SET_WINDOW_USAGE_BOUNDS, UPSCALING_ALLOWED, FALSE));
        }

        core->assign_windows = true;
        return PUSH_KICK(push);
}

static const struct nv50_core_func
corec37d = {
        .init = corec37d_init,
        .ntfy_init = corec37d_ntfy_init,
        .caps_init = corec37d_caps_init,
        .caps_class = GV100_DISP_CAPS,
        .ntfy_wait_done = corec37d_ntfy_wait_done,
        .update = corec37d_update,
        .wndw.owner = corec37d_wndw_owner,
        .head = &headc37d,
        .sor = &sorc37d,
#if IS_ENABLED(CONFIG_DEBUG_FS)
        .crc = &crcc37d,
#endif
};

int
corec37d_new(struct nouveau_drm *drm, s32 oclass, struct nv50_core **pcore)
{
        return core507d_new_(&corec37d, drm, oclass, pcore);
}