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Rev 948 Rev 951
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/* Chipset independant registers (from AGP Spec) */
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#define AGP_APBASE	0x10
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#define AGPSTAT		0x4
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#define AGPCMD		0x8
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#define AGPNISTAT	0xc
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#define AGPCTRL		0x10
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#define AGPAPSIZE	0x14
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#define AGPNEPG		0x16
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#define AGPGARTLO	0x18
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#define AGPGARTHI	0x1c
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#define AGPNICMD	0x20
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#define AGP_MAJOR_VERSION_SHIFT (20)
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#define AGP_MINOR_VERSION_SHIFT	(16)
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#define AGPSTAT_RQ_DEPTH    (0xff000000)
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#define AGPSTAT_RQ_DEPTH_SHIFT	24
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#define AGPSTAT_CAL_MASK	(1<<12|1<<11|1<<10)
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#define AGPSTAT_ARQSZ		(1<<15|1<<14|1<<13)
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#define AGPSTAT_ARQSZ_SHIFT	13
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#define AGPSTAT_SBA         (1<<9)
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#define AGPSTAT_AGP_ENABLE	(1<<8)
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#define AGPSTAT_FW          (1<<4)
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#define AGPSTAT_MODE_3_0	(1<<3)
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#define AGPSTAT2_1X         (1<<0)
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#define AGPSTAT2_2X         (1<<1)
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#define AGPSTAT2_4X         (1<<2)
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#define AGPSTAT3_RSVD		(1<<2)
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#define AGPSTAT3_8X         (1<<1)
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#define AGPSTAT3_4X         (1)
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#define AGPCTRL_APERENB		(1<<8)
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#define AGPCTRL_GTLBEN		(1<<7)
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#define AGP2_RESERVED_MASK 0x00fffcc8
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#define AGP3_RESERVED_MASK 0x00ff00c4
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#define AGP_ERRATA_FASTWRITES 1<<0
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#define AGP_ERRATA_SBA	 1<<1
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#define AGP_ERRATA_1X 1<<2
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/* Intel registers */
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/* Intel registers */
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#define INTEL_APSIZE	0xb4
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#define INTEL_APSIZE        0xb4
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#define INTEL_ATTBASE	0xb8
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#define INTEL_ATTBASE       0xb8
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#define INTEL_AGPCTRL	0xb0
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#define INTEL_AGPCTRL       0xb0
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#define INTEL_NBXCFG	0x50
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#define INTEL_NBXCFG        0x50
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typedef struct
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typedef struct
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{
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{
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    PCITAG    PciTag;
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    PCITAG    PciTag;
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    aper_size_t    *previous_size;
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    aper_size_t    *aperture_sizes;
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    aper_size_t    *current_size;
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    aper_size_t    *current_size;
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    aper_size_t    *previous_size;
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    int             aperture_size_idx;
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    int             aperture_size_idx;
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    u32_t volatile *gatt_table;
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    u32_t volatile *gatt_table;
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    addr_t          gatt_dma;
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    addr_t          gatt_dma;
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    addr_t          apbase_config;
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    addr_t          gart_addr;
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    u32_t           flags;
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    u32_t           mode;
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    int             capndx;
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    addr_t          apbase_config;
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    addr_t          gart_addr;
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    char            major_version;
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    char            minor_version;
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//    void   *aperture_sizes;
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//    int     num_aperture_sizes;
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//    int     num_aperture_sizes;
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//   enum    aper_size_type size_type;
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//   enum    aper_size_type size_type;
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//    int     cant_use_aperture;
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//    int     cant_use_aperture;
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//    int     needs_scratch_page;
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//    int     needs_scratch_page;
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//    struct gatt_mask *masks;
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//    struct gatt_mask *masks;
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    int     (*fetch_size)(void *);
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    int     (*fetch_size)();
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    int     (*configure)(void *);
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    int     (*configure)();
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//    void    (*agp_enable)(struct agp_bridge_data *, u32);
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//    void    (*agp_enable)(struct agp_bridge_data *, u32);
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//    void    (*cleanup)(void);
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//    void    (*cleanup)(void);
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    void    (*tlb_flush)(void *);
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    void    (*tlb_flush)();
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//    u32_t   (*mask_memory)(struct agp_bridge_data *,u32_t, int);
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//    u32_t   (*mask_memory)(struct agp_bridge_data *,u32_t, int);
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//    void    (*cache_flush)(void);
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//    void    (*cache_flush)(void);
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//    int     (*create_gatt_table)(struct agp_bridge_data *);
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    int     (*create_gatt_table)();
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//    int     (*free_gatt_table)(struct agp_bridge_data *);
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//    int     (*free_gatt_table)(struct agp_bridge_data *);