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/*
* Copyright (c) 2012-2013 Etnaviv Project
*
* 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
* 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.
*/
/* etna: memory management functions */
#ifndef H_ETNA_BO
#define H_ETNA_BO
#include <stdbool.h>
#include <unistd.h>
#include <stdint.h>
/* bo create flags */
#define DRM_ETNA_GEM_TYPE_CMD 0x00000000 /* Command buffer */
#define DRM_ETNA_GEM_TYPE_IDX 0x00000001 /* Index buffer */
#define DRM_ETNA_GEM_TYPE_VTX 0x00000002 /* Vertex buffer */
#define DRM_ETNA_GEM_TYPE_TEX 0x00000003 /* Texture */
#define DRM_ETNA_GEM_TYPE_RT 0x00000004 /* Color render target */
#define DRM_ETNA_GEM_TYPE_ZS 0x00000005 /* Depth stencil target */
#define DRM_ETNA_GEM_TYPE_HZ 0x00000006 /* Hierarchical depth render target */
#define DRM_ETNA_GEM_TYPE_BMP 0x00000007 /* Bitmap */
#define DRM_ETNA_GEM_TYPE_TS 0x00000008 /* Tile status cache */
#define DRM_ETNA_GEM_TYPE_MASK 0x0000000F
#define DRM_ETNA_GEM_CACHE_NONE 0x00000000
#define DRM_ETNA_GEM_CACHE_WCOMBINE 0x00100000
#define DRM_ETNA_GEM_CACHE_WTHROUGH 0x00200000
#define DRM_ETNA_GEM_CACHE_WBACK 0x00400000
#define DRM_ETNA_GEM_CACHE_WBACKWA 0x00800000
#define DRM_ETNA_GEM_CACHE_MASK 0x00f00000
#define DRM_ETNA_GEM_GPUREADONLY 0x01000000
/* bo access flags */
#define DRM_ETNA_PREP_READ 0x01
#define DRM_ETNA_PREP_WRITE 0x02
#define DRM_ETNA_PREP_NOSYNC 0x04
struct viv_conn;
struct etna_queue;
struct etna_ctx;
struct etna_bo;
/* Allocate linear block of video memory */
struct etna_bo *etna_bo_new(struct viv_conn *conn, size_t bytes, uint32_t flags);
/* Map user memory into GPU memory space */
struct etna_bo *etna_bo_from_usermem(struct viv_conn *conn, void *memory, size_t size);
/* Buffer object from framebuffer range */
struct etna_bo *etna_bo_from_fbdev(struct viv_conn *conn, int fd, size_t offset, size_t size);
/* Buffer object from flink name */
struct etna_bo *etna_bo_from_name(struct viv_conn *conn, uint32_t name);
/* Increase reference count */
struct etna_bo *etna_bo_ref(struct etna_bo *bo);
/* Decrease reference count orfree video memory node */
int etna_bo_del(struct viv_conn *conn, struct etna_bo *mem, struct etna_queue *queue);
/* Return flink name of buffer object */
int etna_bo_get_name(struct etna_bo *bo, uint32_t *name);
/* Return handle of buffer object */
uint32_t etna_bo_handle(struct etna_bo *bo);
/* Return size of buffer object */
uint32_t etna_bo_size(struct etna_bo *bo);
/* Map buffer object into CPU memory and return pointer. If the buffer object
* is already mapped, return the existing mapping. */
void *etna_bo_map(struct etna_bo *bo);
/* Prepare for CPU access to buffer object */
int etna_bo_cpu_prep(struct etna_bo *bo, struct etna_ctx *pipe, uint32_t op);
/* Finish CPU access to buffer object */
void etna_bo_cpu_fini(struct etna_bo *bo);
/* Temporary: get GPU address of buffer */
uint32_t etna_bo_gpu_address(struct etna_bo *bo);
#endif
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