1 #ifndef _ASM_PARISC_ROPES_H_ 2 #define _ASM_PARISC_ROPES_H_ 3 4 #include <asm/parisc-device.h> 5 6 #ifdef CONFIG_64BIT 7 /* "low end" PA8800 machines use ZX1 chipset: PAT PDC and only run 64-bit */ 8 #define ZX1_SUPPORT 9 #endif 10 11 #ifdef CONFIG_PROC_FS 12 /* depends on proc fs support. But costs CPU performance */ 13 #undef SBA_COLLECT_STATS 14 #endif 15 16 /* 17 ** The number of pdir entries to "free" before issuing 18 ** a read to PCOM register to flush out PCOM writes. 19 ** Interacts with allocation granularity (ie 4 or 8 entries 20 ** allocated and free'd/purged at a time might make this 21 ** less interesting). 22 */ 23 #define DELAYED_RESOURCE_CNT 16 24 25 #define MAX_IOC 2 /* per Ike. Pluto/Astro only have 1. */ 26 #define ROPES_PER_IOC 8 /* per Ike half or Pluto/Astro */ 27 28 struct ioc { 29 void __iomem *ioc_hpa; /* I/O MMU base address */ 30 char *res_map; /* resource map, bit == pdir entry */ 31 u64 *pdir_base; /* physical base address */ 32 unsigned long ibase; /* pdir IOV Space base - shared w/lba_pci */ 33 unsigned long imask; /* pdir IOV Space mask - shared w/lba_pci */ 34 #ifdef ZX1_SUPPORT 35 unsigned long iovp_mask; /* help convert IOVA to IOVP */ 36 #endif 37 unsigned long *res_hint; /* next avail IOVP - circular search */ 38 spinlock_t res_lock; 39 unsigned int res_bitshift; /* from the LEFT! */ 40 unsigned int res_size; /* size of resource map in bytes */ 41 #ifdef SBA_HINT_SUPPORT 42 /* FIXME : DMA HINTs not used */ 43 unsigned long hint_mask_pdir; /* bits used for DMA hints */ 44 unsigned int hint_shift_pdir; 45 #endif 46 #if DELAYED_RESOURCE_CNT > 0 47 int saved_cnt; 48 struct sba_dma_pair { 49 dma_addr_t iova; 50 size_t size; 51 } saved[DELAYED_RESOURCE_CNT]; 52 #endif 53 54 #ifdef SBA_COLLECT_STATS 55 #define SBA_SEARCH_SAMPLE 0x100 56 unsigned long avg_search[SBA_SEARCH_SAMPLE]; 57 unsigned long avg_idx; /* current index into avg_search */ 58 unsigned long used_pages; 59 unsigned long msingle_calls; 60 unsigned long msingle_pages; 61 unsigned long msg_calls; 62 unsigned long msg_pages; 63 unsigned long usingle_calls; 64 unsigned long usingle_pages; 65 unsigned long usg_calls; 66 unsigned long usg_pages; 67 #endif 68 /* STUFF We don't need in performance path */ 69 unsigned int pdir_size; /* in bytes, determined by IOV Space size */ 70 }; 71 72 struct sba_device { 73 struct sba_device *next; /* list of SBA's in system */ 74 struct parisc_device *dev; /* dev found in bus walk */ 75 const char *name; 76 void __iomem *sba_hpa; /* base address */ 77 spinlock_t sba_lock; 78 unsigned int flags; /* state/functionality enabled */ 79 unsigned int hw_rev; /* HW revision of chip */ 80 81 struct resource chip_resv; /* MMIO reserved for chip */ 82 struct resource iommu_resv; /* MMIO reserved for iommu */ 83 84 unsigned int num_ioc; /* number of on-board IOC's */ 85 struct ioc ioc[MAX_IOC]; 86 }; 87 88 #define ASTRO_RUNWAY_PORT 0x582 89 #define IKE_MERCED_PORT 0x803 90 #define REO_MERCED_PORT 0x804 91 #define REOG_MERCED_PORT 0x805 92 #define PLUTO_MCKINLEY_PORT 0x880 93 94 static inline int IS_ASTRO(struct parisc_device *d) { 95 return d->id.hversion == ASTRO_RUNWAY_PORT; 96 } 97 98 static inline int IS_IKE(struct parisc_device *d) { 99 return d->id.hversion == IKE_MERCED_PORT; 100 } 101 102 static inline int IS_PLUTO(struct parisc_device *d) { 103 return d->id.hversion == PLUTO_MCKINLEY_PORT; 104 } 105 106 #define PLUTO_IOVA_BASE (1UL*1024*1024*1024) /* 1GB */ 107 #define PLUTO_IOVA_SIZE (1UL*1024*1024*1024) /* 1GB */ 108 #define PLUTO_GART_SIZE (PLUTO_IOVA_SIZE / 2) 109 110 #define SBA_PDIR_VALID_BIT 0x8000000000000000ULL 111 112 #define SBA_AGPGART_COOKIE 0x0000badbadc0ffeeULL 113 114 #define SBA_FUNC_ID 0x0000 /* function id */ 115 #define SBA_FCLASS 0x0008 /* function class, bist, header, rev... */ 116 117 #define SBA_FUNC_SIZE 4096 /* SBA configuration function reg set */ 118 119 #define ASTRO_IOC_OFFSET (32 * SBA_FUNC_SIZE) 120 #define PLUTO_IOC_OFFSET (1 * SBA_FUNC_SIZE) 121 /* Ike's IOC's occupy functions 2 and 3 */ 122 #define IKE_IOC_OFFSET(p) ((p+2) * SBA_FUNC_SIZE) 123 124 #define IOC_CTRL 0x8 /* IOC_CTRL offset */ 125 #define IOC_CTRL_TC (1 << 0) /* TOC Enable */ 126 #define IOC_CTRL_CE (1 << 1) /* Coalesce Enable */ 127 #define IOC_CTRL_DE (1 << 2) /* Dillon Enable */ 128 #define IOC_CTRL_RM (1 << 8) /* Real Mode */ 129 #define IOC_CTRL_NC (1 << 9) /* Non Coherent Mode */ 130 #define IOC_CTRL_D4 (1 << 11) /* Disable 4-byte coalescing */ 131 #define IOC_CTRL_DD (1 << 13) /* Disable distr. LMMIO range coalescing */ 132 133 /* 134 ** Offsets into MBIB (Function 0 on Ike and hopefully Astro) 135 ** Firmware programs this stuff. Don't touch it. 136 */ 137 #define LMMIO_DIRECT0_BASE 0x300 138 #define LMMIO_DIRECT0_MASK 0x308 139 #define LMMIO_DIRECT0_ROUTE 0x310 140 141 #define LMMIO_DIST_BASE 0x360 142 #define LMMIO_DIST_MASK 0x368 143 #define LMMIO_DIST_ROUTE 0x370 144 145 #define IOS_DIST_BASE 0x390 146 #define IOS_DIST_MASK 0x398 147 #define IOS_DIST_ROUTE 0x3A0 148 149 #define IOS_DIRECT_BASE 0x3C0 150 #define IOS_DIRECT_MASK 0x3C8 151 #define IOS_DIRECT_ROUTE 0x3D0 152 153 /* 154 ** Offsets into I/O TLB (Function 2 and 3 on Ike) 155 */ 156 #define ROPE0_CTL 0x200 /* "regbus pci0" */ 157 #define ROPE1_CTL 0x208 158 #define ROPE2_CTL 0x210 159 #define ROPE3_CTL 0x218 160 #define ROPE4_CTL 0x220 161 #define ROPE5_CTL 0x228 162 #define ROPE6_CTL 0x230 163 #define ROPE7_CTL 0x238 164 165 #define IOC_ROPE0_CFG 0x500 /* pluto only */ 166 #define IOC_ROPE_AO 0x10 /* Allow "Relaxed Ordering" */ 167 168 #define HF_ENABLE 0x40 169 170 #define IOC_IBASE 0x300 /* IO TLB */ 171 #define IOC_IMASK 0x308 172 #define IOC_PCOM 0x310 173 #define IOC_TCNFG 0x318 174 #define IOC_PDIR_BASE 0x320 175 176 /* 177 ** IOC supports 4/8/16/64KB page sizes (see TCNFG register) 178 ** It's safer (avoid memory corruption) to keep DMA page mappings 179 ** equivalently sized to VM PAGE_SIZE. 180 ** 181 ** We really can't avoid generating a new mapping for each 182 ** page since the Virtual Coherence Index has to be generated 183 ** and updated for each page. 184 ** 185 ** PAGE_SIZE could be greater than IOVP_SIZE. But not the inverse. 186 */ 187 #define IOVP_SIZE PAGE_SIZE 188 #define IOVP_SHIFT PAGE_SHIFT 189 #define IOVP_MASK PAGE_MASK 190 191 #define SBA_PERF_CFG 0x708 /* Performance Counter stuff */ 192 #define SBA_PERF_MASK1 0x718 193 #define SBA_PERF_MASK2 0x730 194 195 /* 196 ** Offsets into PCI Performance Counters (functions 12 and 13) 197 ** Controlled by PERF registers in function 2 & 3 respectively. 198 */ 199 #define SBA_PERF_CNT1 0x200 200 #define SBA_PERF_CNT2 0x208 201 #define SBA_PERF_CNT3 0x210 202 203 /* 204 ** lba_device: Per instance Elroy data structure 205 */ 206 struct lba_device { 207 struct pci_hba_data hba; 208 209 spinlock_t lba_lock; 210 void *iosapic_obj; 211 212 #ifdef CONFIG_64BIT 213 void __iomem *iop_base; /* PA_VIEW - for IO port accessor funcs */ 214 #endif 215 216 int flags; /* state/functionality enabled */ 217 int hw_rev; /* HW revision of chip */ 218 }; 219 220 #define ELROY_HVERS 0x782 221 #define MERCURY_HVERS 0x783 222 #define QUICKSILVER_HVERS 0x784 223 224 static inline int IS_ELROY(struct parisc_device *d) { 225 return (d->id.hversion == ELROY_HVERS); 226 } 227 228 static inline int IS_MERCURY(struct parisc_device *d) { 229 return (d->id.hversion == MERCURY_HVERS); 230 } 231 232 static inline int IS_QUICKSILVER(struct parisc_device *d) { 233 return (d->id.hversion == QUICKSILVER_HVERS); 234 } 235 236 static inline int agp_mode_mercury(void __iomem *hpa) { 237 u64 bus_mode; 238 239 bus_mode = readl(hpa + 0x0620); 240 if (bus_mode & 1) 241 return 1; 242 243 return 0; 244 } 245 246 /* 247 ** I/O SAPIC init function 248 ** Caller knows where an I/O SAPIC is. LBA has an integrated I/O SAPIC. 249 ** Call setup as part of per instance initialization. 250 ** (ie *not* init_module() function unless only one is present.) 251 ** fixup_irq is to initialize PCI IRQ line support and 252 ** virtualize pcidev->irq value. To be called by pci_fixup_bus(). 253 */ 254 extern void *iosapic_register(unsigned long hpa); 255 extern int iosapic_fixup_irq(void *obj, struct pci_dev *pcidev); 256 257 #define LBA_FUNC_ID 0x0000 /* function id */ 258 #define LBA_FCLASS 0x0008 /* function class, bist, header, rev... */ 259 #define LBA_CAPABLE 0x0030 /* capabilities register */ 260 261 #define LBA_PCI_CFG_ADDR 0x0040 /* poke CFG address here */ 262 #define LBA_PCI_CFG_DATA 0x0048 /* read or write data here */ 263 264 #define LBA_PMC_MTLT 0x0050 /* Firmware sets this - read only. */ 265 #define LBA_FW_SCRATCH 0x0058 /* Firmware writes the PCI bus number here. */ 266 #define LBA_ERROR_ADDR 0x0070 /* On error, address gets logged here */ 267 268 #define LBA_ARB_MASK 0x0080 /* bit 0 enable arbitration. PAT/PDC enables */ 269 #define LBA_ARB_PRI 0x0088 /* firmware sets this. */ 270 #define LBA_ARB_MODE 0x0090 /* firmware sets this. */ 271 #define LBA_ARB_MTLT 0x0098 /* firmware sets this. */ 272 273 #define LBA_MOD_ID 0x0100 /* Module ID. PDC_PAT_CELL reports 4 */ 274 275 #define LBA_STAT_CTL 0x0108 /* Status & Control */ 276 #define LBA_BUS_RESET 0x01 /* Deassert PCI Bus Reset Signal */ 277 #define CLEAR_ERRLOG 0x10 /* "Clear Error Log" cmd */ 278 #define CLEAR_ERRLOG_ENABLE 0x20 /* "Clear Error Log" Enable */ 279 #define HF_ENABLE 0x40 /* enable HF mode (default is -1 mode) */ 280 281 #define LBA_LMMIO_BASE 0x0200 /* < 4GB I/O address range */ 282 #define LBA_LMMIO_MASK 0x0208 283 284 #define LBA_GMMIO_BASE 0x0210 /* > 4GB I/O address range */ 285 #define LBA_GMMIO_MASK 0x0218 286 287 #define LBA_WLMMIO_BASE 0x0220 /* All < 4GB ranges under the same *SBA* */ 288 #define LBA_WLMMIO_MASK 0x0228 289 290 #define LBA_WGMMIO_BASE 0x0230 /* All > 4GB ranges under the same *SBA* */ 291 #define LBA_WGMMIO_MASK 0x0238 292 293 #define LBA_IOS_BASE 0x0240 /* I/O port space for this LBA */ 294 #define LBA_IOS_MASK 0x0248 295 296 #define LBA_ELMMIO_BASE 0x0250 /* Extra LMMIO range */ 297 #define LBA_ELMMIO_MASK 0x0258 298 299 #define LBA_EIOS_BASE 0x0260 /* Extra I/O port space */ 300 #define LBA_EIOS_MASK 0x0268 301 302 #define LBA_GLOBAL_MASK 0x0270 /* Mercury only: Global Address Mask */ 303 #define LBA_DMA_CTL 0x0278 /* firmware sets this */ 304 305 #define LBA_IBASE 0x0300 /* SBA DMA support */ 306 #define LBA_IMASK 0x0308 307 308 /* FIXME: ignore DMA Hint stuff until we can measure performance */ 309 #define LBA_HINT_CFG 0x0310 310 #define LBA_HINT_BASE 0x0380 /* 14 registers at every 8 bytes. */ 311 312 #define LBA_BUS_MODE 0x0620 313 314 /* ERROR regs are needed for config cycle kluges */ 315 #define LBA_ERROR_CONFIG 0x0680 316 #define LBA_SMART_MODE 0x20 317 #define LBA_ERROR_STATUS 0x0688 318 #define LBA_ROPE_CTL 0x06A0 319 320 #define LBA_IOSAPIC_BASE 0x800 /* Offset of IRQ logic */ 321 322 #endif /*_ASM_PARISC_ROPES_H_*/ 323