/**************************************************************************
 *
 * Copyright 2018-2019 Alyssa Rosenzweig
 * Copyright 2018-2019 Collabora
 * All Rights Reserved.
 *
 * 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, sub license, 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 NON-INFRINGEMENT.
 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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.
 *
 **************************************************************************/

#ifndef PAN_SCREEN_H
#define PAN_SCREEN_H

#include "pipe/p_screen.h"
#include "pipe/p_defines.h"
#include "renderonly/renderonly.h"

#include <panfrost-misc.h>
#include "pan_allocate.h"
#include "pan_trace.h"

struct panfrost_context;
struct panfrost_resource;
struct panfrost_screen;

/* Flags for allocated memory */
#define PAN_ALLOCATE_EXECUTE (1 << 0)
#define PAN_ALLOCATE_GROWABLE (1 << 1)
#define PAN_ALLOCATE_INVISIBLE (1 << 2)
#define PAN_ALLOCATE_COHERENT_LOCAL (1 << 3)

struct panfrost_driver {
	struct panfrost_bo * (*import_bo) (struct panfrost_screen *screen, struct winsys_handle *whandle);
	int (*export_bo) (struct panfrost_screen *screen, int gem_handle, unsigned int stride, struct winsys_handle *whandle);

	int (*submit_vs_fs_job) (struct panfrost_context *ctx, bool has_draws, bool is_scanout);
	void (*force_flush_fragment) (struct panfrost_context *ctx,
				      struct pipe_fence_handle **fence);
	void (*allocate_slab) (struct panfrost_screen *screen,
		               struct panfrost_memory *mem,
		               size_t pages,
		               bool same_va,
		               int extra_flags,
		               int commit_count,
		               int extent);
        void (*free_slab) (struct panfrost_screen *screen,
                           struct panfrost_memory *mem);
        void (*free_imported_bo) (struct panfrost_screen *screen,
                             struct panfrost_bo *bo);
        void (*enable_counters) (struct panfrost_screen *screen);
        void (*dump_counters) (struct panfrost_screen *screen);
	unsigned (*query_gpu_version) (struct panfrost_screen *screen);
	int (*init_context) (struct panfrost_context *ctx);
	void (*fence_reference) (struct pipe_screen *screen,
                         struct pipe_fence_handle **ptr,
                         struct pipe_fence_handle *fence);
	boolean (*fence_finish) (struct pipe_screen *screen,
                      struct pipe_context *ctx,
                      struct pipe_fence_handle *fence,
                      uint64_t timeout);
};

struct panfrost_screen {
        struct pipe_screen base;

        struct renderonly *ro;
        struct panfrost_driver *driver;

        struct panfrost_memory perf_counters;

        /* Memory management is based on subdividing slabs with AMD's allocator */
        struct pb_slabs slabs;
        
        /* TODO: Where? */
        struct panfrost_resource *display_target;

        /* While we're busy building up the job for frame N, the GPU is
         * still busy executing frame N-1. So hold a reference to
         * yesterjob */
	int last_fragment_flushed;
        struct panfrost_job *last_job;
};

#endif /* PAN_SCREEN_H */