--- /dev/null
+/*
+ * 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 */
Code Review / kvmfornfv.git / blobdiff