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/*
* Copyright (c) 2009, Intel Corporation.
* All Rights Reserved.
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_AGPGART_IMPL_H
#define _SYS_AGPGART_IMPL_H
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _KERNEL
#define AGPGART_MAX_INSTANCES 1
#define AGP_MAXKEYS 256
#define AGPGART_DEVNODE "agpgart"
/*
* The values of type agp_arc_type_t are used as indexes into arc_name
* in agp_kstat.c.
* So if agp_arc_type_t's values are changed in the future, the content
* of arc_name must be changed accordingly.
*/
enum agp_arc_type {
ARC_IGD810 = 0,
ARC_IGD830 = 1,
ARC_INTELAGP = 2,
ARC_AMD64AGP = 3,
ARC_UNKNOWN = 5
};
typedef enum agp_arc_type agp_arc_type_t;
/* linked list structure of multiple agp gart devices access handles */
typedef struct amd64_gart_dev_list {
ldi_handle_t gart_devhdl;
struct amd64_gart_dev_list *next;
} amd64_gart_dev_list_t;
typedef struct amd64_garts_dev {
int gart_device_num;
amd64_gart_dev_list_t *gart_dev_list_head;
} amd64_garts_dev_t;
/*
* AGP target and master device register their config space access
* interface here.
* In AMD64, gart_device_num is the number of hostbridge (device(1100, 1022))
* refer to <<Bios and Kernel Developer's Guide for AMD athlon64 and operton>>
*/
typedef struct agp_registered_dev {
amd64_garts_dev_t agprd_cpugarts;
ldi_handle_t agprd_targethdl;
ldi_handle_t agprd_masterhdl;
agp_arc_type_t agprd_arctype; /* system types */
} agp_registered_dev_t;
/*
* If the OS have direct mapping support for mapping physical page frames
* directly to user address, we use this struct for memory
* allocation.
*/
typedef struct agp_pmem_handle {
devmap_pmem_cookie_t pmem_cookie;
} agp_pmem_handle_t;
/*
* This struct is used for DDI-compliant memory allocations.
*/
typedef struct agp_kmem_handle {
ddi_dma_handle_t kmem_handle;
ddi_dma_cookie_t kmem_dcookie;
uint32_t kmem_cookies_num;
caddr_t kmem_kvaddr;
size_t kmem_reallen;
ddi_acc_handle_t kmem_acchdl;
} agp_kmem_handle_t;
typedef struct keytable_ent {
int kte_type; /* agp memory type */
int kte_key; /* memory key */
uint32_t kte_pgoff; /* aperture offset bound in pages */
pgcnt_t kte_pages; /* user-requested size in pages */
int kte_bound; /* bound to gart table */
void *kte_memhdl; /* agp_kmem or agp_pmem handle */
pfn_t *kte_pfnarray; /* page frame numbers allocated */
int kte_refcnt; /* reference count */
} keytable_ent_t;
typedef struct key_list {
int key_idx;
struct key_list *next;
} key_list_t;
/*
* for kstat
*/
typedef struct agp_kern_info {
uint32_t agpki_mdevid;
agp_version_t agpki_mver;
uint32_t agpki_mstatus;
size_t agpki_presize; /* valid only for IGD, in KB */
uint32_t agpki_tdevid;
agp_version_t agpki_tver;
uint32_t agpki_tstatus;
uint64_t agpki_aperbase;
uint32_t agpki_apersize; /* in MB */
} agp_kern_info_t;
#ifdef _MULTI_DATAMODEL
typedef struct _agp_info32 {
agp_version_t agpi32_version;
uint32_t agpi32_devid; /* device VID + DID */
uint32_t agpi32_mode; /* mode of bridge */
uint32_t agpi32_aperbase; /* base of aperture */
uint32_t agpi32_apersize; /* in MB */
uint32_t agpi32_pgtotal; /* max number of pages */
uint32_t agpi32_pgsystem; /* same as pg_total */
uint32_t agpi32_pgused; /* pages consumed */
} agp_info32_t;
#endif /* _MULTI_DATAMODEL */
struct list_head {
struct list_head *next, *prev;
struct igd_gtt_seg *gttseg;
};
typedef struct agpgart_softstate {
dev_info_t *asoft_dip;
kmutex_t asoft_instmutex;
agp_kern_info_t asoft_info;
int asoft_opened; /* 0 not opened, non-0 opened */
int asoft_acquired; /* 0 released, 1 acquired */
int asoft_agpen; /* 0 disbaled, 1 enabled */
pid_t asoft_curpid; /* the process accquiring gart */
uint32_t asoft_mode; /* agp mode be set */
uint32_t asoft_pgtotal; /* total available pages */
uint32_t asoft_pgused; /* pages already used */
/* resource handles */
ldi_ident_t asoft_li; /* for ldi ops */
keytable_ent_t *asoft_table; /* key table for all allocated table */
ddi_dma_handle_t gart_dma_handle; /* for GATT table */
ddi_acc_handle_t gart_dma_acc_handle; /* for GATT table */
/* gart table info */
uint64_t gart_pbase; /* gart table physical address */
caddr_t gart_vbase; /* kernel-vir addr for GATT table */
size_t gart_size; /* the size of aperture in megabytes */
/* all registered agp device in here */
agp_registered_dev_t asoft_devreg;
kstat_t *asoft_ksp;
} agpgart_softstate_t;
typedef struct agpgart_ctx {
offset_t actx_off;
agpgart_softstate_t *actx_sc;
} agpgart_ctx_t;
#define KMEMP(p) ((agp_kmem_handle_t *)p)
#define PMEMP(p) ((agp_pmem_handle_t *)p)
int agp_init_kstats(agpgart_softstate_t *);
void agp_fini_kstats(agpgart_softstate_t *);
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_AGPGART_IMPL_H */
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