1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __ALPHA_CIA__H__ 3 #define __ALPHA_CIA__H__ 4 5 /* Define to experiment with fitting everything into one 512MB HAE window. */ 6 #define CIA_ONE_HAE_WINDOW 1 7 8 #include <linux/types.h> 9 #include <asm/compiler.h> 10 11 /* 12 * CIA is the internal name for the 21171 chipset which provides 13 * memory controller and PCI access for the 21164 chip based systems. 14 * Also supported here is the 21172 (CIA-2) and 21174 (PYXIS). 15 * 16 * The lineage is a bit confused, since the 21174 was reportedly started 17 * from the 21171 Pass 1 mask, and so is missing bug fixes that appear 18 * in 21171 Pass 2 and 21172, but it also contains additional features. 19 * 20 * This file is based on: 21 * 22 * DECchip 21171 Core Logic Chipset 23 * Technical Reference Manual 24 * 25 * EC-QE18B-TE 26 * 27 * david.rusling@reo.mts.dec.com Initial Version. 28 * 29 */ 30 31 /* 32 * CIA ADDRESS BIT DEFINITIONS 33 * 34 * 3333 3333 3322 2222 2222 1111 1111 11 35 * 9876 5432 1098 7654 3210 9876 5432 1098 7654 3210 36 * ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 37 * 1 000 38 * ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 39 * | |\| 40 * | Byte Enable --+ | 41 * | Transfer Length --+ 42 * +-- IO space, not cached 43 * 44 * Byte Transfer 45 * Enable Length Transfer Byte Address 46 * adr<6:5> adr<4:3> Length Enable Adder 47 * --------------------------------------------- 48 * 00 00 Byte 1110 0x000 49 * 01 00 Byte 1101 0x020 50 * 10 00 Byte 1011 0x040 51 * 11 00 Byte 0111 0x060 52 * 53 * 00 01 Word 1100 0x008 54 * 01 01 Word 1001 0x028 <= Not supported in this code. 55 * 10 01 Word 0011 0x048 56 * 57 * 00 10 Tribyte 1000 0x010 58 * 01 10 Tribyte 0001 0x030 59 * 60 * 10 11 Longword 0000 0x058 61 * 62 * Note that byte enables are asserted low. 63 * 64 */ 65 66 #define CIA_MEM_R1_MASK 0x1fffffff /* SPARSE Mem region 1 mask is 29 bits */ 67 #define CIA_MEM_R2_MASK 0x07ffffff /* SPARSE Mem region 2 mask is 27 bits */ 68 #define CIA_MEM_R3_MASK 0x03ffffff /* SPARSE Mem region 3 mask is 26 bits */ 69 70 /* 71 * 21171-CA Control and Status Registers 72 */ 73 #define CIA_IOC_CIA_REV (IDENT_ADDR + 0x8740000080UL) 74 # define CIA_REV_MASK 0xff 75 #define CIA_IOC_PCI_LAT (IDENT_ADDR + 0x87400000C0UL) 76 #define CIA_IOC_CIA_CTRL (IDENT_ADDR + 0x8740000100UL) 77 # define CIA_CTRL_PCI_EN (1 << 0) 78 # define CIA_CTRL_PCI_LOCK_EN (1 << 1) 79 # define CIA_CTRL_PCI_LOOP_EN (1 << 2) 80 # define CIA_CTRL_FST_BB_EN (1 << 3) 81 # define CIA_CTRL_PCI_MST_EN (1 << 4) 82 # define CIA_CTRL_PCI_MEM_EN (1 << 5) 83 # define CIA_CTRL_PCI_REQ64_EN (1 << 6) 84 # define CIA_CTRL_PCI_ACK64_EN (1 << 7) 85 # define CIA_CTRL_ADDR_PE_EN (1 << 8) 86 # define CIA_CTRL_PERR_EN (1 << 9) 87 # define CIA_CTRL_FILL_ERR_EN (1 << 10) 88 # define CIA_CTRL_MCHK_ERR_EN (1 << 11) 89 # define CIA_CTRL_ECC_CHK_EN (1 << 12) 90 # define CIA_CTRL_ASSERT_IDLE_BC (1 << 13) 91 # define CIA_CTRL_COM_IDLE_BC (1 << 14) 92 # define CIA_CTRL_CSR_IOA_BYPASS (1 << 15) 93 # define CIA_CTRL_IO_FLUSHREQ_EN (1 << 16) 94 # define CIA_CTRL_CPU_FLUSHREQ_EN (1 << 17) 95 # define CIA_CTRL_ARB_CPU_EN (1 << 18) 96 # define CIA_CTRL_EN_ARB_LINK (1 << 19) 97 # define CIA_CTRL_RD_TYPE_SHIFT 20 98 # define CIA_CTRL_RL_TYPE_SHIFT 24 99 # define CIA_CTRL_RM_TYPE_SHIFT 28 100 # define CIA_CTRL_EN_DMA_RD_PERF (1 << 31) 101 #define CIA_IOC_CIA_CNFG (IDENT_ADDR + 0x8740000140UL) 102 # define CIA_CNFG_IOA_BWEN (1 << 0) 103 # define CIA_CNFG_PCI_MWEN (1 << 4) 104 # define CIA_CNFG_PCI_DWEN (1 << 5) 105 # define CIA_CNFG_PCI_WLEN (1 << 8) 106 #define CIA_IOC_FLASH_CTRL (IDENT_ADDR + 0x8740000200UL) 107 #define CIA_IOC_HAE_MEM (IDENT_ADDR + 0x8740000400UL) 108 #define CIA_IOC_HAE_IO (IDENT_ADDR + 0x8740000440UL) 109 #define CIA_IOC_CFG (IDENT_ADDR + 0x8740000480UL) 110 #define CIA_IOC_CACK_EN (IDENT_ADDR + 0x8740000600UL) 111 # define CIA_CACK_EN_LOCK_EN (1 << 0) 112 # define CIA_CACK_EN_MB_EN (1 << 1) 113 # define CIA_CACK_EN_SET_DIRTY_EN (1 << 2) 114 # define CIA_CACK_EN_BC_VICTIM_EN (1 << 3) 115 116 117 /* 118 * 21171-CA Diagnostic Registers 119 */ 120 #define CIA_IOC_CIA_DIAG (IDENT_ADDR + 0x8740002000UL) 121 #define CIA_IOC_DIAG_CHECK (IDENT_ADDR + 0x8740003000UL) 122 123 /* 124 * 21171-CA Performance Monitor registers 125 */ 126 #define CIA_IOC_PERF_MONITOR (IDENT_ADDR + 0x8740004000UL) 127 #define CIA_IOC_PERF_CONTROL (IDENT_ADDR + 0x8740004040UL) 128 129 /* 130 * 21171-CA Error registers 131 */ 132 #define CIA_IOC_CPU_ERR0 (IDENT_ADDR + 0x8740008000UL) 133 #define CIA_IOC_CPU_ERR1 (IDENT_ADDR + 0x8740008040UL) 134 #define CIA_IOC_CIA_ERR (IDENT_ADDR + 0x8740008200UL) 135 # define CIA_ERR_COR_ERR (1 << 0) 136 # define CIA_ERR_UN_COR_ERR (1 << 1) 137 # define CIA_ERR_CPU_PE (1 << 2) 138 # define CIA_ERR_MEM_NEM (1 << 3) 139 # define CIA_ERR_PCI_SERR (1 << 4) 140 # define CIA_ERR_PERR (1 << 5) 141 # define CIA_ERR_PCI_ADDR_PE (1 << 6) 142 # define CIA_ERR_RCVD_MAS_ABT (1 << 7) 143 # define CIA_ERR_RCVD_TAR_ABT (1 << 8) 144 # define CIA_ERR_PA_PTE_INV (1 << 9) 145 # define CIA_ERR_FROM_WRT_ERR (1 << 10) 146 # define CIA_ERR_IOA_TIMEOUT (1 << 11) 147 # define CIA_ERR_LOST_CORR_ERR (1 << 16) 148 # define CIA_ERR_LOST_UN_CORR_ERR (1 << 17) 149 # define CIA_ERR_LOST_CPU_PE (1 << 18) 150 # define CIA_ERR_LOST_MEM_NEM (1 << 19) 151 # define CIA_ERR_LOST_PERR (1 << 21) 152 # define CIA_ERR_LOST_PCI_ADDR_PE (1 << 22) 153 # define CIA_ERR_LOST_RCVD_MAS_ABT (1 << 23) 154 # define CIA_ERR_LOST_RCVD_TAR_ABT (1 << 24) 155 # define CIA_ERR_LOST_PA_PTE_INV (1 << 25) 156 # define CIA_ERR_LOST_FROM_WRT_ERR (1 << 26) 157 # define CIA_ERR_LOST_IOA_TIMEOUT (1 << 27) 158 # define CIA_ERR_VALID (1 << 31) 159 #define CIA_IOC_CIA_STAT (IDENT_ADDR + 0x8740008240UL) 160 #define CIA_IOC_ERR_MASK (IDENT_ADDR + 0x8740008280UL) 161 #define CIA_IOC_CIA_SYN (IDENT_ADDR + 0x8740008300UL) 162 #define CIA_IOC_MEM_ERR0 (IDENT_ADDR + 0x8740008400UL) 163 #define CIA_IOC_MEM_ERR1 (IDENT_ADDR + 0x8740008440UL) 164 #define CIA_IOC_PCI_ERR0 (IDENT_ADDR + 0x8740008800UL) 165 #define CIA_IOC_PCI_ERR1 (IDENT_ADDR + 0x8740008840UL) 166 #define CIA_IOC_PCI_ERR3 (IDENT_ADDR + 0x8740008880UL) 167 168 /* 169 * 21171-CA System configuration registers 170 */ 171 #define CIA_IOC_MCR (IDENT_ADDR + 0x8750000000UL) 172 #define CIA_IOC_MBA0 (IDENT_ADDR + 0x8750000600UL) 173 #define CIA_IOC_MBA2 (IDENT_ADDR + 0x8750000680UL) 174 #define CIA_IOC_MBA4 (IDENT_ADDR + 0x8750000700UL) 175 #define CIA_IOC_MBA6 (IDENT_ADDR + 0x8750000780UL) 176 #define CIA_IOC_MBA8 (IDENT_ADDR + 0x8750000800UL) 177 #define CIA_IOC_MBAA (IDENT_ADDR + 0x8750000880UL) 178 #define CIA_IOC_MBAC (IDENT_ADDR + 0x8750000900UL) 179 #define CIA_IOC_MBAE (IDENT_ADDR + 0x8750000980UL) 180 #define CIA_IOC_TMG0 (IDENT_ADDR + 0x8750000B00UL) 181 #define CIA_IOC_TMG1 (IDENT_ADDR + 0x8750000B40UL) 182 #define CIA_IOC_TMG2 (IDENT_ADDR + 0x8750000B80UL) 183 184 /* 185 * 2117A-CA PCI Address and Scatter-Gather Registers. 186 */ 187 #define CIA_IOC_PCI_TBIA (IDENT_ADDR + 0x8760000100UL) 188 189 #define CIA_IOC_PCI_W0_BASE (IDENT_ADDR + 0x8760000400UL) 190 #define CIA_IOC_PCI_W0_MASK (IDENT_ADDR + 0x8760000440UL) 191 #define CIA_IOC_PCI_T0_BASE (IDENT_ADDR + 0x8760000480UL) 192 193 #define CIA_IOC_PCI_W1_BASE (IDENT_ADDR + 0x8760000500UL) 194 #define CIA_IOC_PCI_W1_MASK (IDENT_ADDR + 0x8760000540UL) 195 #define CIA_IOC_PCI_T1_BASE (IDENT_ADDR + 0x8760000580UL) 196 197 #define CIA_IOC_PCI_W2_BASE (IDENT_ADDR + 0x8760000600UL) 198 #define CIA_IOC_PCI_W2_MASK (IDENT_ADDR + 0x8760000640UL) 199 #define CIA_IOC_PCI_T2_BASE (IDENT_ADDR + 0x8760000680UL) 200 201 #define CIA_IOC_PCI_W3_BASE (IDENT_ADDR + 0x8760000700UL) 202 #define CIA_IOC_PCI_W3_MASK (IDENT_ADDR + 0x8760000740UL) 203 #define CIA_IOC_PCI_T3_BASE (IDENT_ADDR + 0x8760000780UL) 204 205 #define CIA_IOC_PCI_Wn_BASE(N) (IDENT_ADDR + 0x8760000400UL + (N)*0x100) 206 #define CIA_IOC_PCI_Wn_MASK(N) (IDENT_ADDR + 0x8760000440UL + (N)*0x100) 207 #define CIA_IOC_PCI_Tn_BASE(N) (IDENT_ADDR + 0x8760000480UL + (N)*0x100) 208 209 #define CIA_IOC_PCI_W_DAC (IDENT_ADDR + 0x87600007C0UL) 210 211 /* 212 * 2117A-CA Address Translation Registers. 213 */ 214 215 /* 8 tag registers, the first 4 of which are lockable. */ 216 #define CIA_IOC_TB_TAGn(n) \ 217 (IDENT_ADDR + 0x8760000800UL + (n)*0x40) 218 219 /* 4 page registers per tag register. */ 220 #define CIA_IOC_TBn_PAGEm(n,m) \ 221 (IDENT_ADDR + 0x8760001000UL + (n)*0x100 + (m)*0x40) 222 223 /* 224 * Memory spaces: 225 */ 226 #define CIA_IACK_SC (IDENT_ADDR + 0x8720000000UL) 227 #define CIA_CONF (IDENT_ADDR + 0x8700000000UL) 228 #define CIA_IO (IDENT_ADDR + 0x8580000000UL) 229 #define CIA_SPARSE_MEM (IDENT_ADDR + 0x8000000000UL) 230 #define CIA_SPARSE_MEM_R2 (IDENT_ADDR + 0x8400000000UL) 231 #define CIA_SPARSE_MEM_R3 (IDENT_ADDR + 0x8500000000UL) 232 #define CIA_DENSE_MEM (IDENT_ADDR + 0x8600000000UL) 233 #define CIA_BW_MEM (IDENT_ADDR + 0x8800000000UL) 234 #define CIA_BW_IO (IDENT_ADDR + 0x8900000000UL) 235 #define CIA_BW_CFG_0 (IDENT_ADDR + 0x8a00000000UL) 236 #define CIA_BW_CFG_1 (IDENT_ADDR + 0x8b00000000UL) 237 238 /* 239 * ALCOR's GRU ASIC registers 240 */ 241 #define GRU_INT_REQ (IDENT_ADDR + 0x8780000000UL) 242 #define GRU_INT_MASK (IDENT_ADDR + 0x8780000040UL) 243 #define GRU_INT_EDGE (IDENT_ADDR + 0x8780000080UL) 244 #define GRU_INT_HILO (IDENT_ADDR + 0x87800000C0UL) 245 #define GRU_INT_CLEAR (IDENT_ADDR + 0x8780000100UL) 246 247 #define GRU_CACHE_CNFG (IDENT_ADDR + 0x8780000200UL) 248 #define GRU_SCR (IDENT_ADDR + 0x8780000300UL) 249 #define GRU_LED (IDENT_ADDR + 0x8780000800UL) 250 #define GRU_RESET (IDENT_ADDR + 0x8780000900UL) 251 252 #define ALCOR_GRU_INT_REQ_BITS 0x800fffffUL 253 #define XLT_GRU_INT_REQ_BITS 0x80003fffUL 254 #define GRU_INT_REQ_BITS (alpha_mv.sys.cia.gru_int_req_bits+0) 255 256 /* 257 * PYXIS interrupt control registers 258 */ 259 #define PYXIS_INT_REQ (IDENT_ADDR + 0x87A0000000UL) 260 #define PYXIS_INT_MASK (IDENT_ADDR + 0x87A0000040UL) 261 #define PYXIS_INT_HILO (IDENT_ADDR + 0x87A00000C0UL) 262 #define PYXIS_INT_ROUTE (IDENT_ADDR + 0x87A0000140UL) 263 #define PYXIS_GPO (IDENT_ADDR + 0x87A0000180UL) 264 #define PYXIS_INT_CNFG (IDENT_ADDR + 0x87A00001C0UL) 265 #define PYXIS_RT_COUNT (IDENT_ADDR + 0x87A0000200UL) 266 #define PYXIS_INT_TIME (IDENT_ADDR + 0x87A0000240UL) 267 #define PYXIS_IIC_CTRL (IDENT_ADDR + 0x87A00002C0UL) 268 #define PYXIS_RESET (IDENT_ADDR + 0x8780000900UL) 269 270 /* Offset between ram physical addresses and pci64 DAC bus addresses. */ 271 #define PYXIS_DAC_OFFSET (1UL << 40) 272 273 /* 274 * Data structure for handling CIA machine checks. 275 */ 276 277 /* System-specific info. */ 278 struct el_CIA_sysdata_mcheck { 279 unsigned long cpu_err0; 280 unsigned long cpu_err1; 281 unsigned long cia_err; 282 unsigned long cia_stat; 283 unsigned long err_mask; 284 unsigned long cia_syn; 285 unsigned long mem_err0; 286 unsigned long mem_err1; 287 unsigned long pci_err0; 288 unsigned long pci_err1; 289 unsigned long pci_err2; 290 }; 291 292 293 #ifdef __KERNEL__ 294 295 #ifndef __EXTERN_INLINE 296 /* Do not touch, this should *NOT* be static inline */ 297 #define __EXTERN_INLINE extern inline 298 #define __IO_EXTERN_INLINE 299 #endif 300 301 /* 302 * I/O functions: 303 * 304 * CIA (the 2117x PCI/memory support chipset for the EV5 (21164) 305 * series of processors uses a sparse address mapping scheme to 306 * get at PCI memory and I/O. 307 */ 308 309 /* 310 * Memory functions. 64-bit and 32-bit accesses are done through 311 * dense memory space, everything else through sparse space. 312 * 313 * For reading and writing 8 and 16 bit quantities we need to 314 * go through one of the three sparse address mapping regions 315 * and use the HAE_MEM CSR to provide some bits of the address. 316 * The following few routines use only sparse address region 1 317 * which gives 1Gbyte of accessible space which relates exactly 318 * to the amount of PCI memory mapping *into* system address space. 319 * See p 6-17 of the specification but it looks something like this: 320 * 321 * 21164 Address: 322 * 323 * 3 2 1 324 * 9876543210987654321098765432109876543210 325 * 1ZZZZ0.PCI.QW.Address............BBLL 326 * 327 * ZZ = SBZ 328 * BB = Byte offset 329 * LL = Transfer length 330 * 331 * PCI Address: 332 * 333 * 3 2 1 334 * 10987654321098765432109876543210 335 * HHH....PCI.QW.Address........ 00 336 * 337 * HHH = 31:29 HAE_MEM CSR 338 * 339 */ 340 341 #define vip volatile int __force * 342 #define vuip volatile unsigned int __force * 343 #define vulp volatile unsigned long __force * 344 345 __EXTERN_INLINE unsigned int cia_ioread8(const void __iomem *xaddr) 346 { 347 unsigned long addr = (unsigned long) xaddr; 348 unsigned long result, base_and_type; 349 350 if (addr >= CIA_DENSE_MEM) 351 base_and_type = CIA_SPARSE_MEM + 0x00; 352 else 353 base_and_type = CIA_IO + 0x00; 354 355 /* We can use CIA_MEM_R1_MASK for io ports too, since it is large 356 enough to cover all io ports, and smaller than CIA_IO. */ 357 addr &= CIA_MEM_R1_MASK; 358 result = *(vip) ((addr << 5) + base_and_type); 359 return __kernel_extbl(result, addr & 3); 360 } 361 362 __EXTERN_INLINE void cia_iowrite8(u8 b, void __iomem *xaddr) 363 { 364 unsigned long addr = (unsigned long) xaddr; 365 unsigned long w, base_and_type; 366 367 if (addr >= CIA_DENSE_MEM) 368 base_and_type = CIA_SPARSE_MEM + 0x00; 369 else 370 base_and_type = CIA_IO + 0x00; 371 372 addr &= CIA_MEM_R1_MASK; 373 w = __kernel_insbl(b, addr & 3); 374 *(vuip) ((addr << 5) + base_and_type) = w; 375 } 376 377 __EXTERN_INLINE unsigned int cia_ioread16(const void __iomem *xaddr) 378 { 379 unsigned long addr = (unsigned long) xaddr; 380 unsigned long result, base_and_type; 381 382 if (addr >= CIA_DENSE_MEM) 383 base_and_type = CIA_SPARSE_MEM + 0x08; 384 else 385 base_and_type = CIA_IO + 0x08; 386 387 addr &= CIA_MEM_R1_MASK; 388 result = *(vip) ((addr << 5) + base_and_type); 389 return __kernel_extwl(result, addr & 3); 390 } 391 392 __EXTERN_INLINE void cia_iowrite16(u16 b, void __iomem *xaddr) 393 { 394 unsigned long addr = (unsigned long) xaddr; 395 unsigned long w, base_and_type; 396 397 if (addr >= CIA_DENSE_MEM) 398 base_and_type = CIA_SPARSE_MEM + 0x08; 399 else 400 base_and_type = CIA_IO + 0x08; 401 402 addr &= CIA_MEM_R1_MASK; 403 w = __kernel_inswl(b, addr & 3); 404 *(vuip) ((addr << 5) + base_and_type) = w; 405 } 406 407 __EXTERN_INLINE unsigned int cia_ioread32(const void __iomem *xaddr) 408 { 409 unsigned long addr = (unsigned long) xaddr; 410 if (addr < CIA_DENSE_MEM) 411 addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18; 412 return *(vuip)addr; 413 } 414 415 __EXTERN_INLINE void cia_iowrite32(u32 b, void __iomem *xaddr) 416 { 417 unsigned long addr = (unsigned long) xaddr; 418 if (addr < CIA_DENSE_MEM) 419 addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18; 420 *(vuip)addr = b; 421 } 422 423 __EXTERN_INLINE void __iomem *cia_ioportmap(unsigned long addr) 424 { 425 return (void __iomem *)(addr + CIA_IO); 426 } 427 428 __EXTERN_INLINE void __iomem *cia_ioremap(unsigned long addr, 429 unsigned long size) 430 { 431 return (void __iomem *)(addr + CIA_DENSE_MEM); 432 } 433 434 __EXTERN_INLINE int cia_is_ioaddr(unsigned long addr) 435 { 436 return addr >= IDENT_ADDR + 0x8000000000UL; 437 } 438 439 __EXTERN_INLINE int cia_is_mmio(const volatile void __iomem *addr) 440 { 441 return (unsigned long)addr >= CIA_DENSE_MEM; 442 } 443 444 __EXTERN_INLINE void __iomem *cia_bwx_ioportmap(unsigned long addr) 445 { 446 return (void __iomem *)(addr + CIA_BW_IO); 447 } 448 449 __EXTERN_INLINE void __iomem *cia_bwx_ioremap(unsigned long addr, 450 unsigned long size) 451 { 452 return (void __iomem *)(addr + CIA_BW_MEM); 453 } 454 455 __EXTERN_INLINE int cia_bwx_is_ioaddr(unsigned long addr) 456 { 457 return addr >= IDENT_ADDR + 0x8000000000UL; 458 } 459 460 __EXTERN_INLINE int cia_bwx_is_mmio(const volatile void __iomem *addr) 461 { 462 return (unsigned long)addr < CIA_BW_IO; 463 } 464 465 #undef vip 466 #undef vuip 467 #undef vulp 468 469 #undef __IO_PREFIX 470 #define __IO_PREFIX cia 471 #define cia_trivial_rw_bw 2 472 #define cia_trivial_rw_lq 1 473 #define cia_trivial_io_bw 0 474 #define cia_trivial_io_lq 0 475 #define cia_trivial_iounmap 1 476 #include <asm/io_trivial.h> 477 478 #undef __IO_PREFIX 479 #define __IO_PREFIX cia_bwx 480 #define cia_bwx_trivial_rw_bw 1 481 #define cia_bwx_trivial_rw_lq 1 482 #define cia_bwx_trivial_io_bw 1 483 #define cia_bwx_trivial_io_lq 1 484 #define cia_bwx_trivial_iounmap 1 485 #include <asm/io_trivial.h> 486 487 #undef __IO_PREFIX 488 #ifdef CONFIG_ALPHA_PYXIS 489 #define __IO_PREFIX cia_bwx 490 #else 491 #define __IO_PREFIX cia 492 #endif 493 494 #ifdef __IO_EXTERN_INLINE 495 #undef __EXTERN_INLINE 496 #undef __IO_EXTERN_INLINE 497 #endif 498 499 #endif /* __KERNEL__ */ 500 501 #endif /* __ALPHA_CIA__H__ */ 502