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2325 | Serge | 1 | /* |
2 | * AGPGART |
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3 | * Copyright (C) 2004 Silicon Graphics, Inc. |
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4 | * Copyright (C) 2002-2004 Dave Jones |
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5 | * Copyright (C) 1999 Jeff Hartmann |
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6 | * Copyright (C) 1999 Precision Insight, Inc. |
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7 | * Copyright (C) 1999 Xi Graphics, Inc. |
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8 | * |
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9 | * Permission is hereby granted, free of charge, to any person obtaining a |
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10 | * copy of this software and associated documentation files (the "Software"), |
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11 | * to deal in the Software without restriction, including without limitation |
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12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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13 | * and/or sell copies of the Software, and to permit persons to whom the |
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14 | * Software is furnished to do so, subject to the following conditions: |
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15 | * |
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16 | * The above copyright notice and this permission notice shall be included |
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17 | * in all copies or substantial portions of the Software. |
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18 | * |
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19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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22 | * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, |
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23 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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24 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE |
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25 | * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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26 | * |
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27 | */ |
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28 | |||
29 | #ifndef _AGP_BACKEND_PRIV_H |
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30 | #define _AGP_BACKEND_PRIV_H 1 |
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31 | |||
32 | //#include |
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33 | |||
34 | |||
35 | enum chipset_type { |
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36 | NOT_SUPPORTED, |
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37 | SUPPORTED, |
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38 | }; |
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39 | |||
3031 | serge | 40 | struct agp_memory; |
2325 | Serge | 41 | |
42 | #define PFX "agpgart: " |
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43 | |||
44 | //#define AGP_DEBUG 1 |
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45 | #ifdef AGP_DEBUG |
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46 | #define DBG(x,y...) printk (KERN_DEBUG PFX "%s: " x "\n", __func__ , ## y) |
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47 | #else |
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48 | #define DBG(x,y...) do { } while (0) |
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49 | #endif |
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50 | |||
51 | extern struct agp_bridge_data *agp_bridge; |
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52 | |||
53 | enum aper_size_type { |
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54 | U8_APER_SIZE, |
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55 | U16_APER_SIZE, |
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56 | U32_APER_SIZE, |
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57 | LVL2_APER_SIZE, |
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58 | FIXED_APER_SIZE |
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59 | }; |
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60 | |||
61 | struct gatt_mask { |
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62 | unsigned long mask; |
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63 | u32 type; |
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64 | /* totally device specific, for integrated chipsets that |
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65 | * might have different types of memory masks. For other |
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66 | * devices this will probably be ignored */ |
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67 | }; |
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68 | |||
69 | #define AGP_PAGE_DESTROY_UNMAP 1 |
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70 | #define AGP_PAGE_DESTROY_FREE 2 |
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71 | |||
72 | struct aper_size_info_8 { |
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73 | int size; |
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74 | int num_entries; |
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75 | int page_order; |
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76 | u8 size_value; |
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77 | }; |
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78 | |||
79 | struct aper_size_info_16 { |
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80 | int size; |
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81 | int num_entries; |
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82 | int page_order; |
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83 | u16 size_value; |
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84 | }; |
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85 | |||
86 | struct aper_size_info_32 { |
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87 | int size; |
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88 | int num_entries; |
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89 | int page_order; |
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90 | u32 size_value; |
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91 | }; |
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92 | |||
93 | struct aper_size_info_lvl2 { |
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94 | int size; |
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95 | int num_entries; |
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96 | u32 size_value; |
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97 | }; |
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98 | |||
99 | struct aper_size_info_fixed { |
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100 | int size; |
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101 | int num_entries; |
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102 | int page_order; |
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103 | }; |
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104 | |||
105 | struct agp_bridge_driver { |
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106 | struct module *owner; |
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107 | const void *aperture_sizes; |
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108 | int num_aperture_sizes; |
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109 | enum aper_size_type size_type; |
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110 | bool cant_use_aperture; |
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111 | bool needs_scratch_page; |
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112 | const struct gatt_mask *masks; |
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113 | int (*fetch_size)(void); |
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114 | int (*configure)(void); |
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115 | void (*agp_enable)(struct agp_bridge_data *, u32); |
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116 | void (*cleanup)(void); |
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117 | void (*tlb_flush)(struct agp_memory *); |
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118 | unsigned long (*mask_memory)(struct agp_bridge_data *, dma_addr_t, int); |
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119 | void (*cache_flush)(void); |
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120 | int (*create_gatt_table)(struct agp_bridge_data *); |
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121 | int (*free_gatt_table)(struct agp_bridge_data *); |
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122 | int (*insert_memory)(struct agp_memory *, off_t, int); |
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123 | int (*remove_memory)(struct agp_memory *, off_t, int); |
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124 | struct agp_memory *(*alloc_by_type) (size_t, int); |
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125 | void (*free_by_type)(struct agp_memory *); |
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126 | struct page *(*agp_alloc_page)(struct agp_bridge_data *); |
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127 | int (*agp_alloc_pages)(struct agp_bridge_data *, struct agp_memory *, size_t); |
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128 | void (*agp_destroy_page)(struct page *, int flags); |
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129 | void (*agp_destroy_pages)(struct agp_memory *); |
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130 | int (*agp_type_to_mask_type) (struct agp_bridge_data *, int); |
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131 | }; |
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132 | |||
133 | struct agp_bridge_data { |
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134 | const struct agp_version *version; |
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135 | const struct agp_bridge_driver *driver; |
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136 | const struct vm_operations_struct *vm_ops; |
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137 | void *previous_size; |
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138 | void *current_size; |
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139 | void *dev_private_data; |
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140 | struct pci_dev *dev; |
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141 | u32 __iomem *gatt_table; |
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142 | u32 *gatt_table_real; |
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143 | unsigned long scratch_page; |
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144 | struct page *scratch_page_page; |
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145 | dma_addr_t scratch_page_dma; |
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146 | unsigned long gart_bus_addr; |
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147 | unsigned long gatt_bus_addr; |
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148 | u32 mode; |
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149 | enum chipset_type type; |
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150 | unsigned long *key_list; |
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151 | atomic_t current_memory_agp; |
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152 | atomic_t agp_in_use; |
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153 | int max_memory_agp; /* in number of pages */ |
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154 | int aperture_size_idx; |
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155 | int capndx; |
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156 | int flags; |
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157 | char major_version; |
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158 | char minor_version; |
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159 | struct list_head list; |
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160 | u32 apbase_config; |
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161 | /* list of agp_memory mapped to the aperture */ |
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162 | struct list_head mapped_list; |
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163 | spinlock_t mapped_lock; |
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164 | }; |
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165 | |||
166 | #define KB(x) ((x) * 1024) |
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167 | #define MB(x) (KB (KB (x))) |
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168 | #define GB(x) (MB (KB (x))) |
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169 | |||
170 | #define A_SIZE_8(x) ((struct aper_size_info_8 *) x) |
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171 | #define A_SIZE_16(x) ((struct aper_size_info_16 *) x) |
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172 | #define A_SIZE_32(x) ((struct aper_size_info_32 *) x) |
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173 | #define A_SIZE_LVL2(x) ((struct aper_size_info_lvl2 *) x) |
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174 | #define A_SIZE_FIX(x) ((struct aper_size_info_fixed *) x) |
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175 | #define A_IDX8(bridge) (A_SIZE_8((bridge)->driver->aperture_sizes) + i) |
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176 | #define A_IDX16(bridge) (A_SIZE_16((bridge)->driver->aperture_sizes) + i) |
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177 | #define A_IDX32(bridge) (A_SIZE_32((bridge)->driver->aperture_sizes) + i) |
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178 | #define MAXKEY (4096 * 32) |
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179 | |||
180 | #define PGE_EMPTY(b, p) (!(p) || (p) == (unsigned long) (b)->scratch_page) |
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181 | |||
182 | |||
183 | struct agp_device_ids { |
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184 | unsigned short device_id; /* first, to make table easier to read */ |
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185 | enum chipset_type chipset; |
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186 | const char *chipset_name; |
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187 | int (*chipset_setup) (struct pci_dev *pdev); /* used to override generic */ |
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188 | }; |
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189 | |||
190 | /* Driver registration */ |
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191 | struct agp_bridge_data *agp_alloc_bridge(void); |
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192 | void agp_put_bridge(struct agp_bridge_data *bridge); |
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193 | int agp_add_bridge(struct agp_bridge_data *bridge); |
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194 | void agp_remove_bridge(struct agp_bridge_data *bridge); |
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195 | |||
196 | /* Frontend routines. */ |
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197 | int agp_frontend_initialize(void); |
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198 | void agp_frontend_cleanup(void); |
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199 | |||
200 | /* Generic routines. */ |
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201 | void agp_generic_enable(struct agp_bridge_data *bridge, u32 mode); |
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202 | int agp_generic_create_gatt_table(struct agp_bridge_data *bridge); |
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203 | int agp_generic_free_gatt_table(struct agp_bridge_data *bridge); |
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204 | struct agp_memory *agp_create_memory(int scratch_pages); |
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205 | int agp_generic_insert_memory(struct agp_memory *mem, off_t pg_start, int type); |
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206 | int agp_generic_remove_memory(struct agp_memory *mem, off_t pg_start, int type); |
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207 | struct agp_memory *agp_generic_alloc_by_type(size_t page_count, int type); |
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208 | void agp_generic_free_by_type(struct agp_memory *curr); |
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209 | struct page *agp_generic_alloc_page(struct agp_bridge_data *bridge); |
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210 | int agp_generic_alloc_pages(struct agp_bridge_data *agp_bridge, |
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211 | struct agp_memory *memory, size_t page_count); |
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212 | void agp_generic_destroy_page(struct page *page, int flags); |
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213 | void agp_generic_destroy_pages(struct agp_memory *memory); |
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214 | void agp_free_key(int key); |
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215 | int agp_num_entries(void); |
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216 | u32 agp_collect_device_status(struct agp_bridge_data *bridge, u32 mode, u32 command); |
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217 | void agp_device_command(u32 command, bool agp_v3); |
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218 | int agp_3_5_enable(struct agp_bridge_data *bridge); |
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219 | void global_cache_flush(void); |
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220 | void get_agp_version(struct agp_bridge_data *bridge); |
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221 | unsigned long agp_generic_mask_memory(struct agp_bridge_data *bridge, |
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222 | dma_addr_t phys, int type); |
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223 | int agp_generic_type_to_mask_type(struct agp_bridge_data *bridge, |
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224 | int type); |
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225 | struct agp_bridge_data *agp_generic_find_bridge(struct pci_dev *pdev); |
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226 | |||
227 | /* generic functions for user-populated AGP memory types */ |
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228 | struct agp_memory *agp_generic_alloc_user(size_t page_count, int type); |
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229 | void agp_alloc_page_array(size_t size, struct agp_memory *mem); |
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230 | void agp_free_page_array(struct agp_memory *mem); |
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231 | |||
232 | |||
233 | /* generic routines for agp>=3 */ |
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234 | int agp3_generic_fetch_size(void); |
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235 | void agp3_generic_tlbflush(struct agp_memory *mem); |
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236 | int agp3_generic_configure(void); |
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237 | void agp3_generic_cleanup(void); |
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238 | |||
239 | /* aperture sizes have been standardised since v3 */ |
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240 | #define AGP_GENERIC_SIZES_ENTRIES 11 |
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241 | extern const struct aper_size_info_16 agp3_generic_sizes[]; |
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242 | |||
243 | extern int agp_off; |
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244 | extern int agp_try_unsupported_boot; |
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245 | |||
246 | long compat_agp_ioctl(struct file *file, unsigned int cmd, unsigned long arg); |
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247 | |||
248 | /* Chipset independent registers (from AGP Spec) */ |
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249 | #define AGP_APBASE 0x10 |
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250 | |||
251 | #define AGPSTAT 0x4 |
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252 | #define AGPCMD 0x8 |
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253 | #define AGPNISTAT 0xc |
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254 | #define AGPCTRL 0x10 |
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255 | #define AGPAPSIZE 0x14 |
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256 | #define AGPNEPG 0x16 |
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257 | #define AGPGARTLO 0x18 |
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258 | #define AGPGARTHI 0x1c |
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259 | #define AGPNICMD 0x20 |
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260 | |||
261 | #define AGP_MAJOR_VERSION_SHIFT (20) |
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262 | #define AGP_MINOR_VERSION_SHIFT (16) |
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263 | |||
264 | #define AGPSTAT_RQ_DEPTH (0xff000000) |
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265 | #define AGPSTAT_RQ_DEPTH_SHIFT 24 |
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266 | |||
267 | #define AGPSTAT_CAL_MASK (1<<12|1<<11|1<<10) |
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268 | #define AGPSTAT_ARQSZ (1<<15|1<<14|1<<13) |
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269 | #define AGPSTAT_ARQSZ_SHIFT 13 |
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270 | |||
271 | #define AGPSTAT_SBA (1<<9) |
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272 | #define AGPSTAT_AGP_ENABLE (1<<8) |
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273 | #define AGPSTAT_FW (1<<4) |
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274 | #define AGPSTAT_MODE_3_0 (1<<3) |
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275 | |||
276 | #define AGPSTAT2_1X (1<<0) |
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277 | #define AGPSTAT2_2X (1<<1) |
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278 | #define AGPSTAT2_4X (1<<2) |
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279 | |||
280 | #define AGPSTAT3_RSVD (1<<2) |
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281 | #define AGPSTAT3_8X (1<<1) |
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282 | #define AGPSTAT3_4X (1) |
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283 | |||
284 | #define AGPCTRL_APERENB (1<<8) |
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285 | #define AGPCTRL_GTLBEN (1<<7) |
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286 | |||
287 | #define AGP2_RESERVED_MASK 0x00fffcc8 |
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288 | #define AGP3_RESERVED_MASK 0x00ff00c4 |
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289 | |||
290 | #define AGP_ERRATA_FASTWRITES 1<<0 |
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291 | #define AGP_ERRATA_SBA 1<<1 |
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292 | #define AGP_ERRATA_1X 1<<2 |
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293 | |||
294 | #endif /* _AGP_BACKEND_PRIV_H */2 |