/*
 * Copyright (C) 2021 Collabora, Ltd.
 *
 * 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 (including the next
 * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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:
 *   Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
 *   Boris Brezillon <boris.brezillon@collabora.com>
 */

#ifndef __PAN_CS_H
#define __PAN_CS_H

#include "genxml/gen_macros.h"

#include "pan_texture.h"

struct pan_compute_dim {
        uint32_t x, y, z;
};

struct pan_fb_color_attachment {
        const struct pan_image_view *view;
        bool *crc_valid;
        bool clear;
        bool preload;
        bool discard;
        uint32_t clear_value[4];
};

struct pan_fb_zs_attachment {
        struct {
                const struct pan_image_view *zs, *s;
        } view;

        struct {
                bool z, s;
        } clear;

        struct {
                bool z, s;
        } discard;

        struct {
                bool z, s;
        } preload;

        struct {
                float depth;
                uint8_t stencil;
        } clear_value;
};

struct pan_tiler_context {
        union {
                mali_ptr bifrost;
                struct {
                        bool disable;
                        struct panfrost_bo *polygon_list;
                } midgard;
        };
};

struct pan_tls_info {
        struct {
                mali_ptr ptr;
                unsigned size;
        } tls;

        struct {
                struct pan_compute_dim dim;
                mali_ptr ptr;
                unsigned size;
        } wls;
};

struct pan_fb_bifrost_info {
        struct {
                struct panfrost_ptr dcds;
                unsigned modes[3];
        } pre_post;
};

struct pan_fb_info {
        unsigned width, height;
        struct {
                /* Max values are inclusive */
                unsigned minx, miny, maxx, maxy;
        } extent;
        unsigned nr_samples;
        unsigned rt_count;
        struct pan_fb_color_attachment rts[8];
        struct pan_fb_zs_attachment zs;

        struct {
                unsigned stride;
                mali_ptr base;
        } tile_map;

        union {
                struct pan_fb_bifrost_info bifrost;
        };
};

static inline unsigned
pan_wls_instances(const struct pan_compute_dim *dim)
{
        return util_next_power_of_two(dim->x) *
               util_next_power_of_two(dim->y) *
               util_next_power_of_two(dim->z);
}

static inline unsigned
pan_wls_adjust_size(unsigned wls_size)
{
        return util_next_power_of_two(MAX2(wls_size, 128));
}

static inline unsigned
pan_wls_mem_size(const struct panfrost_device *dev,
                 const struct pan_compute_dim *dim,
                 unsigned wls_size)
{
        unsigned instances = pan_wls_instances(dim);

        return pan_wls_adjust_size(wls_size) * instances * dev->core_count;
}

#ifdef PAN_ARCH
void
GENX(pan_emit_tls)(const struct pan_tls_info *info,
                   void *out);

int
GENX(pan_select_crc_rt)(const struct pan_fb_info *fb);

static inline bool
pan_fbd_has_zs_crc_ext(const struct pan_fb_info *fb)
{
        return PAN_ARCH >= 5 &&
               (fb->zs.view.zs || fb->zs.view.s ||
                GENX(pan_select_crc_rt)(fb) >= 0);
}

unsigned
GENX(pan_emit_fbd)(const struct panfrost_device *dev,
                   const struct pan_fb_info *fb,
                   const struct pan_tls_info *tls,
                   const struct pan_tiler_context *tiler_ctx,
                   void *out);

#if PAN_ARCH >= 6
void
GENX(pan_emit_tiler_heap)(const struct panfrost_device *dev,
                          void *out);

void
GENX(pan_emit_tiler_ctx)(const struct panfrost_device *dev,
                         unsigned fb_width, unsigned fb_height,
                         unsigned nr_samples,
                         mali_ptr heap,
                         void *out);
#endif

void
GENX(pan_emit_fragment_job)(const struct pan_fb_info *fb,
                            mali_ptr fbd,
                            void *out);
#endif /* ifdef PAN_ARCH */

#endif