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/*
* Copyright 2010 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.
*
* Authors: Ben Skeggs
*/
#ifndef __NOUVEAU_VM_H__
#define __NOUVEAU_VM_H__
#include "drmP.h"
#include "nouveau_drv.h"
#include "nouveau_mm.h"
struct nouveau_vm_pgt {
struct nouveau_gpuobj *obj;
u32 page_shift;
u32 refcount;
};
struct nouveau_vm_pgd {
struct list_head head;
struct nouveau_gpuobj *obj;
};
struct nouveau_vma {
struct nouveau_vm *vm;
struct nouveau_mm_node *node;
u64 offset;
u32 access;
};
struct nouveau_vm {
struct drm_device *dev;
struct nouveau_mm *mm;
int refcount;
struct list_head pgd_list;
atomic_t pgraph_refs;
atomic_t pcrypt_refs;
struct nouveau_vm_pgt *pgt;
u32 fpde;
u32 lpde;
u32 pgt_bits;
u8 spg_shift;
u8 lpg_shift;
void (*map_pgt)(struct nouveau_gpuobj *pgd, u32 type, u32 pde,
struct nouveau_gpuobj *pgt);
void (*unmap_pgt)(struct nouveau_gpuobj *pgd, u32 pde);
void (*map)(struct nouveau_vma *, struct nouveau_gpuobj *,
struct nouveau_vram *, u32 pte, u32 cnt, u64 phys);
void (*map_sg)(struct nouveau_vma *, struct nouveau_gpuobj *,
u32 pte, dma_addr_t *, u32 cnt);
void (*unmap)(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt);
void (*flush)(struct nouveau_vm *);
};
/* nouveau_vm.c */
int nouveau_vm_new(struct drm_device *, u64 offset, u64 length, u64 mm_offset,
u8 pgt_bits, u8 spg_shift, u8 lpg_shift,
struct nouveau_vm **);
int nouveau_vm_ref(struct nouveau_vm *, struct nouveau_vm **,
struct nouveau_gpuobj *pgd);
int nouveau_vm_get(struct nouveau_vm *, u64 size, u32 page_shift,
u32 access, struct nouveau_vma *);
void nouveau_vm_put(struct nouveau_vma *);
void nouveau_vm_map(struct nouveau_vma *, struct nouveau_vram *);
void nouveau_vm_map_at(struct nouveau_vma *, u64 offset, struct nouveau_vram *);
void nouveau_vm_unmap(struct nouveau_vma *);
void nouveau_vm_unmap_at(struct nouveau_vma *, u64 offset, u64 length);
void nouveau_vm_map_sg(struct nouveau_vma *, u64 offset, u64 length,
dma_addr_t *);
/* nv50_vm.c */
void nv50_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 type, u32 pde,
struct nouveau_gpuobj *pgt);
void nv50_vm_unmap_pgt(struct nouveau_gpuobj *pgd, u32 pde);
void nv50_vm_map(struct nouveau_vma *, struct nouveau_gpuobj *,
struct nouveau_vram *, u32 pte, u32 cnt, u64 phys);
void nv50_vm_map_sg(struct nouveau_vma *, struct nouveau_gpuobj *,
u32 pte, dma_addr_t *, u32 cnt);
void nv50_vm_unmap(struct nouveau_gpuobj *, u32 pte, u32 cnt);
void nv50_vm_flush(struct nouveau_vm *);
void nv50_vm_flush_engine(struct drm_device *, int engine);
#endif
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