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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2010 PathScale Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef __PSCNV_VRAM_H__
#define __PSCNV_VRAM_H__
#include "pscnv_drm.h"
#include "pscnv_mm.h"
#define PSCNV_MEM_PAGE_SIZE 0x1000
/* A VRAM object of any kind. */
struct pscnv_bo {
struct drm_device *dev;
/* size. Always a multiple of page size. */
uint64_t size;
/* misc flags, see below. */
int flags;
int tile_flags;
/* cookie: free-form 32-bit number displayed in debug info. */
uint32_t cookie;
/* only used for debug */
int serial;
/* only for contig blocks. same info as start of first [and only]
* region, but more convenient to access */
uint64_t start;
/* the following used for GEM objects only */
uint32_t user[8];
struct drm_gem_object *gem;
struct pscnv_mm_node *map1;
struct pscnv_mm_node *map3;
/* VRAM only: the first mm node */
struct pscnv_mm_node *mmnode;
/* SYSRaM only: list of pages */
struct page **pages;
dma_addr_t *dmapages;
/* CHAN only, pointer to a channel (FreeBSD doesn't allow overriding mmap) */
struct pscnv_chan *chan;
};
#define PSCNV_GEM_NOUSER 0x10
struct pscnv_vram_engine {
void (*takedown) (struct drm_device *);
int (*alloc) (struct pscnv_bo *);
int (*free) (struct pscnv_bo *);
int (*sysram_tiling_ok) (struct pscnv_bo *);
};
extern int pscnv_mem_init(struct drm_device *);
extern void pscnv_mem_takedown(struct drm_device *);
extern struct pscnv_bo *pscnv_mem_alloc(struct drm_device *,
uint64_t size, int flags, int tile_flags, uint32_t cookie);
extern int pscnv_mem_free(struct pscnv_bo *);
extern int pscnv_vram_free(struct pscnv_bo *bo);
extern void pscnv_vram_takedown(struct drm_device *dev);
extern int nv50_vram_init(struct drm_device *);
extern int nvc0_vram_init(struct drm_device *);
extern int pscnv_sysram_alloc(struct pscnv_bo *);
extern int pscnv_sysram_free(struct pscnv_bo *);
extern int pscnv_sysram_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
#endif
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