| /* | |
| * 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 1 | |
| #include <asm/agp.h> /* for flush_agp_cache() */ | |
| #define PFX "agpgart: " | |
| //#define AGP_DEBUG 1 | |
| #ifdef AGP_DEBUG | |
| #define DBG(x,y...) printk (KERN_DEBUG PFX "%s: " x "\n", __func__ , ## y) | |
| #else | |
| #define DBG(x,y...) do { } while (0) | |
| #endif | |
| extern struct agp_bridge_data *agp_bridge; | |
| enum aper_size_type { | |
| U8_APER_SIZE, | |
| U16_APER_SIZE, | |
| U32_APER_SIZE, | |
| LVL2_APER_SIZE, | |
| FIXED_APER_SIZE | |
| }; | |
| struct gatt_mask { | |
| unsigned long mask; | |
| u32 type; | |
| /* totally device specific, for integrated chipsets that | |
| * might have different types of memory masks. For other | |
| * devices this will probably be ignored */ | |
| }; | |
| #define AGP_PAGE_DESTROY_UNMAP 1 | |
| #define AGP_PAGE_DESTROY_FREE 2 | |
| struct aper_size_info_8 { | |
| int size; | |
| int num_entries; | |
| int page_order; | |
| u8 size_value; | |
| }; | |
| struct aper_size_info_16 { | |
| int size; | |
| int num_entries; | |
| int page_order; | |
| u16 size_value; | |
| }; | |
| struct aper_size_info_32 { | |
| int size; | |
| int num_entries; | |
| int page_order; | |
| u32 size_value; | |
| }; | |
| struct aper_size_info_lvl2 { | |
| int size; | |
| int num_entries; | |
| u32 size_value; | |
| }; | |
| struct aper_size_info_fixed { | |
| int size; | |
| int num_entries; | |
| int page_order; | |
| }; | |
| struct agp_bridge_driver { | |
| struct module *owner; | |
| const void *aperture_sizes; | |
| int num_aperture_sizes; | |
| enum aper_size_type size_type; | |
| bool cant_use_aperture; | |
| bool needs_scratch_page; | |
| const struct gatt_mask *masks; | |
| int (*fetch_size)(void); | |
| int (*configure)(void); | |
| void (*agp_enable)(struct agp_bridge_data *, u32); | |
| void (*cleanup)(void); | |
| void (*tlb_flush)(struct agp_memory *); | |
| unsigned long (*mask_memory)(struct agp_bridge_data *, dma_addr_t, int); | |
| void (*cache_flush)(void); | |
| int (*create_gatt_table)(struct agp_bridge_data *); | |
| int (*free_gatt_table)(struct agp_bridge_data *); | |
| int (*insert_memory)(struct agp_memory *, off_t, int); | |
| int (*remove_memory)(struct agp_memory *, off_t, int); | |
| struct agp_memory *(*alloc_by_type) (size_t, int); | |
| void (*free_by_type)(struct agp_memory *); | |
| struct page *(*agp_alloc_page)(struct agp_bridge_data *); | |
| int (*agp_alloc_pages)(struct agp_bridge_data *, struct agp_memory *, size_t); | |
| void (*agp_destroy_page)(struct page *, int flags); | |
| void (*agp_destroy_pages)(struct agp_memory *); | |
| int (*agp_type_to_mask_type) (struct agp_bridge_data *, int); | |
| }; | |
| struct agp_bridge_data { | |
| const struct agp_version *version; | |
| const struct agp_bridge_driver *driver; | |
| const struct vm_operations_struct *vm_ops; | |
| void *previous_size; | |
| void *current_size; | |
| void *dev_private_data; | |
| struct pci_dev *dev; | |
| u32 __iomem *gatt_table; | |
| u32 *gatt_table_real; | |
| unsigned long scratch_page; | |
| struct page *scratch_page_page; | |
| dma_addr_t scratch_page_dma; | |
| unsigned long gart_bus_addr; | |
| unsigned long gatt_bus_addr; | |
| u32 mode; | |
| enum chipset_type type; | |
| unsigned long *key_list; | |
| atomic_t current_memory_agp; | |
| atomic_t agp_in_use; | |
| int max_memory_agp; /* in number of pages */ | |
| int aperture_size_idx; | |
| int capndx; | |
| int flags; | |
| char major_version; | |
| char minor_version; | |
| struct list_head list; | |
| u32 apbase_config; | |
| /* list of agp_memory mapped to the aperture */ | |
| struct list_head mapped_list; | |
| spinlock_t mapped_lock; | |
| }; | |
| #define KB(x) ((x) * 1024) | |
| #define MB(x) (KB (KB (x))) | |
| #define GB(x) (MB (KB (x))) | |
| #define A_SIZE_8(x) ((struct aper_size_info_8 *) x) | |
| #define A_SIZE_16(x) ((struct aper_size_info_16 *) x) | |
| #define A_SIZE_32(x) ((struct aper_size_info_32 *) x) | |
| #define A_SIZE_LVL2(x) ((struct aper_size_info_lvl2 *) x) | |
| #define A_SIZE_FIX(x) ((struct aper_size_info_fixed *) x) | |
| #define A_IDX8(bridge) (A_SIZE_8((bridge)->driver->aperture_sizes) + i) | |
| #define A_IDX16(bridge) (A_SIZE_16((bridge)->driver->aperture_sizes) + i) | |
| #define A_IDX32(bridge) (A_SIZE_32((bridge)->driver->aperture_sizes) + i) | |
| #define MAXKEY (4096 * 32) | |
| #define PGE_EMPTY(b, p) (!(p) || (p) == (unsigned long) (b)->scratch_page) | |
| struct agp_device_ids { | |
| unsigned short device_id; /* first, to make table easier to read */ | |
| enum chipset_type chipset; | |
| const char *chipset_name; | |
| int (*chipset_setup) (struct pci_dev *pdev); /* used to override generic */ | |
| }; | |
| /* 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); | |
| /* Frontend routines. */ | |
| int agp_frontend_initialize(void); | |
| void agp_frontend_cleanup(void); | |
| /* 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) | |
| { | |
| kvfree(mem->pages); | |
| } | |
| /* 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); | |
| /* aperture sizes have been standardised since v3 */ | |
| #define AGP_GENERIC_SIZES_ENTRIES 11 | |
| 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 0x10 | |
| #define AGP_APERTURE_BAR 0 | |
| #define AGPSTAT 0x4 | |
| #define AGPCMD 0x8 | |
| #define AGPNISTAT 0xc | |
| #define AGPCTRL 0x10 | |
| #define AGPAPSIZE 0x14 | |
| #define AGPNEPG 0x16 | |
| #define AGPGARTLO 0x18 | |
| #define AGPGARTHI 0x1c | |
| #define AGPNICMD 0x20 | |
| #define AGP_MAJOR_VERSION_SHIFT (20) | |
| #define AGP_MINOR_VERSION_SHIFT (16) | |
| #define AGPSTAT_RQ_DEPTH (0xff000000) | |
| #define AGPSTAT_RQ_DEPTH_SHIFT 24 | |
| #define AGPSTAT_CAL_MASK (1<<12|1<<11|1<<10) | |
| #define AGPSTAT_ARQSZ (1<<15|1<<14|1<<13) | |
| #define AGPSTAT_ARQSZ_SHIFT 13 | |
| #define AGPSTAT_SBA (1<<9) | |
| #define AGPSTAT_AGP_ENABLE (1<<8) | |
| #define AGPSTAT_FW (1<<4) | |
| #define AGPSTAT_MODE_3_0 (1<<3) | |
| #define AGPSTAT2_1X (1<<0) | |
| #define AGPSTAT2_2X (1<<1) | |
| #define AGPSTAT2_4X (1<<2) | |
| #define AGPSTAT3_RSVD (1<<2) | |
| #define AGPSTAT3_8X (1<<1) | |
| #define AGPSTAT3_4X (1) | |
| #define AGPCTRL_APERENB (1<<8) | |
| #define AGPCTRL_GTLBEN (1<<7) | |
| #define AGP2_RESERVED_MASK 0x00fffcc8 | |
| #define AGP3_RESERVED_MASK 0x00ff00c4 | |
| #define AGP_ERRATA_FASTWRITES 1<<0 | |
| #define AGP_ERRATA_SBA 1<<1 | |
| #define AGP_ERRATA_1X 1<<2 | |
| #endif /* _AGP_BACKEND_PRIV_H */ |