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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 <core/object.h>
#include <core/subdev.h>
#include <core/device.h>
#include <core/mm.h>
struct nouveau_vm_pgt {
struct nouveau_gpuobj *obj[2];
u32 refcount[2];
};
struct nouveau_vm_pgd {
struct list_head head;
struct nouveau_gpuobj *obj;
};
struct nouveau_gpuobj;
struct nouveau_mem;
struct nouveau_vma {
struct list_head head;
int refcount;
struct nouveau_vm *vm;
struct nouveau_mm_node *node;
u64 offset;
u32 access;
};
struct nouveau_vm {
struct nouveau_vmmgr *vmm;
struct nouveau_mm mm;
struct kref refcount;
struct list_head pgd_list;
atomic_t engref[NVDEV_SUBDEV_NR];
struct nouveau_vm_pgt *pgt;
u32 fpde;
u32 lpde;
};
struct nouveau_vmmgr {
struct nouveau_subdev base;
u64 limit;
u8 dma_bits;
u32 pgt_bits;
u8 spg_shift;
u8 lpg_shift;
int (*create)(struct nouveau_vmmgr *, u64 offset, u64 length,
u64 mm_offset, struct nouveau_vm **);
void (*map_pgt)(struct nouveau_gpuobj *pgd, u32 pde,
struct nouveau_gpuobj *pgt[2]);
void (*map)(struct nouveau_vma *, struct nouveau_gpuobj *,
struct nouveau_mem *, u32 pte, u32 cnt,
u64 phys, u64 delta);
void (*map_sg)(struct nouveau_vma *, struct nouveau_gpuobj *,
struct nouveau_mem *, u32 pte, u32 cnt, dma_addr_t *);
void (*unmap)(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt);
void (*flush)(struct nouveau_vm *);
};
static inline struct nouveau_vmmgr *
nouveau_vmmgr(void *obj)
{
return (void *)nouveau_subdev(obj, NVDEV_SUBDEV_VM);
}
#define nouveau_vmmgr_create(p,e,o,i,f,d) \
nouveau_subdev_create((p), (e), (o), 0, (i), (f), (d))
#define nouveau_vmmgr_destroy(p) \
nouveau_subdev_destroy(&(p)->base)
#define nouveau_vmmgr_init(p) \
nouveau_subdev_init(&(p)->base)
#define nouveau_vmmgr_fini(p,s) \
nouveau_subdev_fini(&(p)->base, (s))
#define _nouveau_vmmgr_dtor _nouveau_subdev_dtor
#define _nouveau_vmmgr_init _nouveau_subdev_init
#define _nouveau_vmmgr_fini _nouveau_subdev_fini
extern struct nouveau_oclass nv04_vmmgr_oclass;
extern struct nouveau_oclass nv41_vmmgr_oclass;
extern struct nouveau_oclass nv44_vmmgr_oclass;
extern struct nouveau_oclass nv50_vmmgr_oclass;
extern struct nouveau_oclass nvc0_vmmgr_oclass;
int nv04_vm_create(struct nouveau_vmmgr *, u64, u64, u64,
struct nouveau_vm **);
void nv04_vmmgr_dtor(struct nouveau_object *);
/* nouveau_vm.c */
int nouveau_vm_create(struct nouveau_vmmgr *, u64 offset, u64 length,
u64 mm_offset, u32 block, struct nouveau_vm **);
int nouveau_vm_new(struct nouveau_device *, u64 offset, u64 length,
u64 mm_offset, 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_mem *);
void nouveau_vm_map_at(struct nouveau_vma *, u64 offset, struct nouveau_mem *);
void nouveau_vm_unmap(struct nouveau_vma *);
void nouveau_vm_unmap_at(struct nouveau_vma *, u64 offset, u64 length);
#endif
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