/* * AGPGART * Copyright (C) 2004 Silicon Graphics, Inc. * Copyright (C) 2002-2004 Dave Jones * Copyright (C) 1999 Jeff Hartmann * Copyright (C) 1999 Precision Insight, Inc. * Copyright (C) 1999 Xi Graphics, 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 * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS 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. * */ #ifndef _AGP_BACKEND_PRIV_H #define _AGP_BACKEND_PRIV_H … #include <asm/agp.h> /* for flush_agp_cache() */ #define PFX … //#define AGP_DEBUG 1 #ifdef AGP_DEBUG #define DBG … #else #define DBG(x,y...) … #endif extern struct agp_bridge_data *agp_bridge; enum aper_size_type { … }; struct gatt_mask { … }; #define AGP_PAGE_DESTROY_UNMAP … #define AGP_PAGE_DESTROY_FREE … struct aper_size_info_8 { … }; struct aper_size_info_16 { … }; struct aper_size_info_32 { … }; struct aper_size_info_lvl2 { … }; struct aper_size_info_fixed { … }; struct agp_bridge_driver { … }; struct agp_bridge_data { … }; #define KB(x) … #define MB(x) … #define GB(x) … #define A_SIZE_8(x) … #define A_SIZE_16(x) … #define A_SIZE_32(x) … #define A_SIZE_LVL2(x) … #define A_SIZE_FIX(x) … #define A_IDX8(bridge) … #define A_IDX16(bridge) … #define A_IDX32(bridge) … #define MAXKEY … #define PGE_EMPTY(b, p) … struct agp_device_ids { … }; /* Driver registration */ struct agp_bridge_data *agp_alloc_bridge(void); void agp_put_bridge(struct agp_bridge_data *bridge); int agp_add_bridge(struct agp_bridge_data *bridge); void agp_remove_bridge(struct agp_bridge_data *bridge); /* Generic routines. */ void agp_generic_enable(struct agp_bridge_data *bridge, u32 mode); int agp_generic_create_gatt_table(struct agp_bridge_data *bridge); int agp_generic_free_gatt_table(struct agp_bridge_data *bridge); struct agp_memory *agp_create_memory(int scratch_pages); int agp_generic_insert_memory(struct agp_memory *mem, off_t pg_start, int type); int agp_generic_remove_memory(struct agp_memory *mem, off_t pg_start, int type); struct agp_memory *agp_generic_alloc_by_type(size_t page_count, int type); void agp_generic_free_by_type(struct agp_memory *curr); struct page *agp_generic_alloc_page(struct agp_bridge_data *bridge); int agp_generic_alloc_pages(struct agp_bridge_data *agp_bridge, struct agp_memory *memory, size_t page_count); void agp_generic_destroy_page(struct page *page, int flags); void agp_generic_destroy_pages(struct agp_memory *memory); void agp_free_key(int key); int agp_num_entries(void); u32 agp_collect_device_status(struct agp_bridge_data *bridge, u32 mode, u32 command); void agp_device_command(u32 command, bool agp_v3); int agp_3_5_enable(struct agp_bridge_data *bridge); void global_cache_flush(void); void get_agp_version(struct agp_bridge_data *bridge); unsigned long agp_generic_mask_memory(struct agp_bridge_data *bridge, dma_addr_t phys, int type); int agp_generic_type_to_mask_type(struct agp_bridge_data *bridge, int type); struct agp_bridge_data *agp_generic_find_bridge(struct pci_dev *pdev); /* generic functions for user-populated AGP memory types */ struct agp_memory *agp_generic_alloc_user(size_t page_count, int type); void agp_alloc_page_array(size_t size, struct agp_memory *mem); static inline void agp_free_page_array(struct agp_memory *mem) { … } /* generic routines for agp>=3 */ int agp3_generic_fetch_size(void); void agp3_generic_tlbflush(struct agp_memory *mem); int agp3_generic_configure(void); void agp3_generic_cleanup(void); /* GATT allocation. Returns/accepts GATT kernel virtual address. */ #define alloc_gatt_pages(order) … #define free_gatt_pages(table, order) … /* aperture sizes have been standardised since v3 */ #define AGP_GENERIC_SIZES_ENTRIES … extern const struct aper_size_info_16 agp3_generic_sizes[]; extern int agp_off; extern int agp_try_unsupported_boot; long compat_agp_ioctl(struct file *file, unsigned int cmd, unsigned long arg); /* Chipset independent registers (from AGP Spec) */ #define AGP_APBASE … #define AGP_APERTURE_BAR … #define AGPSTAT … #define AGPCMD … #define AGPNISTAT … #define AGPCTRL … #define AGPAPSIZE … #define AGPNEPG … #define AGPGARTLO … #define AGPGARTHI … #define AGPNICMD … #define AGP_MAJOR_VERSION_SHIFT … #define AGP_MINOR_VERSION_SHIFT … #define AGPSTAT_RQ_DEPTH … #define AGPSTAT_RQ_DEPTH_SHIFT … #define AGPSTAT_CAL_MASK … #define AGPSTAT_ARQSZ … #define AGPSTAT_ARQSZ_SHIFT … #define AGPSTAT_SBA … #define AGPSTAT_AGP_ENABLE … #define AGPSTAT_FW … #define AGPSTAT_MODE_3_0 … #define AGPSTAT2_1X … #define AGPSTAT2_2X … #define AGPSTAT2_4X … #define AGPSTAT3_RSVD … #define AGPSTAT3_8X … #define AGPSTAT3_4X … #define AGPCTRL_APERENB … #define AGPCTRL_GTLBEN … #define AGP2_RESERVED_MASK … #define AGP3_RESERVED_MASK … #define AGP_ERRATA_FASTWRITES … #define AGP_ERRATA_SBA … #define AGP_ERRATA_1X … #endif /* _AGP_BACKEND_PRIV_H */
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