1 /* $NetBSD: mcpciareg.h,v 1.9 2024/06/02 13:28:45 andvar Exp $ */ 2 3 /* 4 * Copyright (c) 1998 by Matthew Jacob 5 * NASA AMES Research Center. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice immediately at the beginning of the file, without modification, 13 * this list of conditions, and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /* 34 * Taken from: 35 * 36 * ``RAWHIDE Systems Programmer's Manual, Revision 1.4'' 37 */ 38 39 #define REGVAL(r) (*(volatile int32_t *)ALPHA_PHYS_TO_K0SEG(r)) 40 41 /* 42 * There are 4 possible PCI busses per MCBUS. 43 * 44 * (from mcpcia.h, Digital Unix 4.0E): 45 * 46 * I/O Space Per PCI Node (8GBytes per) 47 * ------------------------------------ 48 * (8+x)8 0000 0000 - (8+x)9 FFFF FFFF - I/O Space for PCI0 49 * (8+x)A 0000 0000 - (8+x)B FFFF FFFF - I/O Space for PCI1 50 * (8+x)C 0000 0000 - (8+x)D FFFF FFFF - I/O Space for PCI2 51 * (8+x)E 0000 0000 - (8+x)F FFFF FFFF - I/O Space for PCI3 52 * 53 * CPU to PCI Address Mapping: 54 * --------------------------- 55 * 56 * +---+-------+-------+--+--+--+--+--+--+---------------+----------+-----+ 57 * | 1 | GID | MID | | | | | | | Byte Aligned | Byte Len | Zero| 58 * | | | | | | | | | | I/O Address | Field | | 59 * +---+-------+-------+--+--+--+--+--+--+---------------+----------+-----+ 60 * 39 38 36 35 33 32 31 30 29 28 27 26 5 4 3 2 0 61 * 62 * <39> - I/O Select (Always 1 for direct I/O access) 63 * 64 * <38-36> - Global Bus slot # (MCBUS #) 65 * GID slot #0->7 (MCBUS #0->7) 66 * 67 * <35-33> - MCBUS Slot # 68 * MCBUS slot 0->7 69 * 70 * <32-27> - PCI Address Space 71 * 0.xxxxx = Sparse Memory Space ( 4GB on MCBUS; 128MB on PCI) 72 * 1.0xxxx = Dense Memory Space ( 2GB on MCBUS; 2GB on PCI) 73 * 1.10xxx = Sparse IO Space ( 1GB on MCBUS; 32MB on PCI) 74 * 1.110xx = Sparse Config Space (512MB on MCBUS; 16MB on PCI) 75 * 1.1110x = PCI Bridge CSR Space (256MB on MCBUS) -- Sparse-mapped! 76 * 1.11110 = Interrupt Acknowledge (128MB on MCBUS) 77 * 1.11111 = Unused (128MB on MCBUS) 78 * 79 * ------------------------------------------------------------ 80 * CPU to PCI Address Mapping for MCBUS-PCIy Bridge on MCBUS x: 81 * ------------------------------------------------------------ 82 * 83 * CPU Address Range PCI Address Range PCI Address Space 84 * ------------------------ --------------------- ------------------------ 85 * (8+x)(8+y*2).0000.0000 0000.0000 - 00FF.FFFF PCIy Sparse Memory Space 86 * - (8+x)(8+y*2).1FFF.FFFF (fixed, lower 16MB) 87 * 88 * (8+x)(8+y*2).2000.0000 0100.0000 - 07FF.FFFF PCIy Sparse Memory Space 89 * - (8+x)(8+y*2).FFFF.FFFF (variable, offset = 0) 90 * 91 * (8+x)(9+y*2).0000.0000 0000.0000 - 7FFF.FFFF PCIy Dense Memory Space 92 * - (8+x)(9+y*2).7FFF.FFFF or 8000.0000 - FFFF.FFFF if HAE_DENSE_MEM = 1 93 * 94 * (8+x)(9+y*2).8000.0000 0000.0000 - 0000.FFFF PCIy Sparse IO Space 95 * - (8+x)(9+y*2).801F.FFFF (fixed, lower 64K) 96 * 97 * (8+x)(9+y*2).8020.0000 0001.0000 - 01FF.FFFF PCIy Sparse IO Space 98 * - (8+x)(9+y*2).BFFF.FFFF (variable, offset = 0) 99 * 100 * (8+x)(9+y*2).C000.0000 0000.0000 - 0FFF.FFFF PCIy Config Space (16MB) 101 * - (8+x)(9+y*2).DFFF.FFFF 102 * 103 * (8+x)(9+y*2).E000.0000 N/A PCIy-Bridge CSR Space 104 * (8MB) 105 * - (8+x)(9+y*2).EFFF.FFFF 106 * 107 * (8+x)(9+y*2).F000.0000 N/A Unused 108 * - (8+x)(9+y*2).F000.3EFF 109 * 110 * (8+x)(9+y*2).F000.3F00, N/A PCIy Interrupt ACK0 111 * (8+x)(9+y*2).F000.3F40 PCIy Interrupt ACK1 112 * 113 * (8+x)(9+y*2).F000.3F80 N/A Unused 114 * - (8+x)(9+y*2).FFFF.FFFF 115 * 116 */ 117 118 /* 119 * MC-PCI Bus Bridge CSRs 120 * 121 * Address Map Overview: 122 * 123 * Offset Selected Space 124 * ---------------- ------------------------------------------------- 125 * 0x00000000 General config, control, diag, error logging regs. 126 * 0x00001000 PCI Error Status 127 * 0x00001300 PCI Scatter/Gather Regs. 128 * 0x00001800 Scatter/Gather TLB Regs. 129 * 0x00004000 MDPA Error Status & Diagnostic Control 130 * 0x00008000 MDPB Error Status & Diagnostic Control 131 * 0x000E0000 - Flash Rom Space -- 132 * 0x000FFFFF offset address into PCI Dense Mem Space 133 * 0x10003F00 Interrupt Acknowledge 134 * 135 */ 136 137 138 /* 139 * Address Space Cookies 140 */ 141 142 #define MCPCIA_PCI_SPARSE 0x000000000UL 143 #define MCPCIA_PCI_DENSE 0x100000000UL 144 #define MCPCIA_PCI_IOSPACE 0x180000000UL 145 #define MCPCIA_PCI_CONF 0x1C0000000UL 146 #define MCPCIA_PCI_BRIDGE 0x1E0000000UL 147 #define MCPCIA_PCI_IACK 0x1F0000000UL 148 149 /* 150 * MCPCIA Bus Bridge Registers 151 * 152 * These are offsets that don't include GBUS, MID, or address space offsets. 153 */ 154 155 #define _MCPCIA_PCI_REV 0x000000000 /* PCI Revision Register (R) */ 156 #define _MCPCIA_WHOAMI 0x000000040 /* PCI Who Am I (R) */ 157 #define _MCPCIA_PCI_LAT 0x000000080 /* PCI Latency Timer (RW) */ 158 #define _MCPCIA_CAP_CTRL 0x000000100 /* PCI Bridge Control (RW) */ 159 #define _MCPCIA_HAE_MEM 0x000000400 /* PCI HAE Sparse Memory (RW) */ 160 #define _MCPCIA_HAE_IO 0x000000440 /* PCI HAE Sparse I/O (RW) */ 161 #define _MCPCIA_IACK_SC 0x000000480 /* PCI Special Cycle Ack */ 162 #define _MCPCIA_HAE_DENSE 0x0000004C0 /* PCI HAE Dense Memory (RW) */ 163 164 #define _MCPCIA_INT_CTL 0x000000500 /* PCI Interrupt Control */ 165 #define _MCPCIA_INT_REQ 0x000000540 /* PCI Interrupt Request */ 166 #define _MCPCIA_INT_TARG 0x000000580 /* PCI Int Tgt Devices */ 167 #define _MCPCIA_INT_ADR 0x0000005C0 /* PCI Int Tgt Address */ 168 #define _MCPCIA_INT_ADR_EXT 0x000000600 /* PCI Int Tgt Addr Ext */ 169 #define _MCPCIA_INT_MASK0 0x000000640 /* PCI Int Mask 0 */ 170 #define _MCPCIA_INT_MASK1 0x000000680 /* PCI Int Mask 1 */ 171 172 #define _MCPCIA_INT_ACK0 0x100003F00 /* PCI Int Ack 0 */ 173 #define _MCPCIA_INT_ACK1 0x100003F40 /* PCI Int Ack 1 */ 174 175 #define _MCPCIA_PERF_MON 0x000000300 /* PCI Perf Monitor */ 176 #define _MCPCIA_PERF_CONT 0x000000340 /* PCI Perf Monitor Control */ 177 178 #define _MCPCIA_CAP_DIAG 0x000000700 /* MC-PCI Diagnostic Control */ 179 #define _MCPCIA_SCRATCH0 0x000000740 /* Diag General */ 180 #define _MCPCIA_SCRATCH1 0x000000780 /* Diag General */ 181 #define _MCPCIA_TOM 0x0000007C0 /* Top Of Memory */ 182 #define _MCPCIA_MC_ERR0 0x000000800 /* MC Err Info 0 */ 183 #define _MCPCIA_MC_ERR1 0x000000840 /* MC Err Info 1 */ 184 #define _MCPCIA_CAP_ERR 0x000000880 /* CAP Error Register */ 185 186 #define _MCPCIA_PCI_ERR1 0x000001040 /* PCI Error Status */ 187 188 #define _MCPCIA_MDPA_STAT 0x000004000 /* MDPA Status */ 189 #define _MCPCIA_MDPA_SYN 0x000004040 /* MDPA Syndrome */ 190 #define _MCPCIA_MDPA_DIAG 0x000004080 /* Diag Check MDPA */ 191 192 #define _MCPCIA_MDPB_STAT 0x000008000 /* MDPB Status */ 193 #define _MCPCIA_MDPB_SYN 0x000008040 /* MDPB Syndrome */ 194 #define _MCPCIA_MDPB_DIAG 0x000008080 /* Diag Check MDPB */ 195 196 #define _MCPCIA_SG_TBIA 0x000001300 /* Scatter/Gather TBIA */ 197 #define _MCPCIA_HBASE 0x000001340 /* PC "Hole" Compatibility */ 198 #define _MCPCIA_W0_BASE 0x000001400 /* Window Base 0 */ 199 #define _MCPCIA_W0_MASK 0x000001440 /* Window Mask 0 */ 200 #define _MCPCIA_T0_BASE 0x000001480 /* Translated Base 0 */ 201 #define _MCPCIA_W1_BASE 0x000001500 /* Window Base 1 */ 202 #define _MCPCIA_W1_MASK 0x000001540 /* Window Mask 1 */ 203 #define _MCPCIA_T1_BASE 0x000001580 /* Translated Base 1 */ 204 #define _MCPCIA_W2_BASE 0x000001600 /* Window Base 2 */ 205 #define _MCPCIA_W2_MASK 0x000001640 /* Window Mask 2 */ 206 #define _MCPCIA_T2_BASE 0x000001680 /* Translated Base 2 */ 207 #define _MCPCIA_W3_BASE 0x000001700 /* Window Base 3 */ 208 #define _MCPCIA_W3_MASK 0x000001740 /* Window Mask 3 */ 209 #define _MCPCIA_T3_BASE 0x000001780 /* Translated Base 3 */ 210 #define _MCPCIA_W_DAC 0x0000017C0 /* Window DAC Base */ 211 212 213 /* 214 * Handier defines- uses precalculated offset in softc. 215 */ 216 #define _SYBRIDGE(ccp) ((ccp)->cc_sysbase | MCPCIA_PCI_BRIDGE) 217 218 #define MCPCIA_PCI_REV(ccp) (_SYBRIDGE(ccp) | _MCPCIA_PCI_REV) 219 #define MCPCIA_WHOAMI(ccp) (_SYBRIDGE(ccp) | _MCPCIA_WHOAMI) 220 #define MCPCIA_PCI_LAT(ccp) (_SYBRIDGE(ccp) | _MCPCIA_PCI_LAT) 221 #define MCPCIA_CAP_CTRL(ccp) (_SYBRIDGE(ccp) | _MCPCIA_CAP_CTRL) 222 #define MCPCIA_HAE_MEM(ccp) (_SYBRIDGE(ccp) | _MCPCIA_HAE_MEM) 223 #define MCPCIA_HAE_IO(ccp) (_SYBRIDGE(ccp) | _MCPCIA_HAE_IO) 224 #define MCPCIA_IACK_SC(ccp) (_SYBRIDGE(ccp) | _MCPCIA_IACK_SC) 225 #define MCPCIA_HAE_DENSE(ccp) (_SYBRIDGE(ccp) | _MCPCIA_HAE_DENSE) 226 #define MCPCIA_INT_CTL(ccp) (_SYBRIDGE(ccp) | _MCPCIA_INT_CTL) 227 #define MCPCIA_INT_REQ(ccp) (_SYBRIDGE(ccp) | _MCPCIA_INT_REQ) 228 #define MCPCIA_INT_TARG(ccp) (_SYBRIDGE(ccp) | _MCPCIA_INT_TARG) 229 #define MCPCIA_INT_ADR(ccp) (_SYBRIDGE(ccp) | _MCPCIA_INT_ADR) 230 #define MCPCIA_INT_ADR_EXT(ccp) (_SYBRIDGE(ccp) | _MCPCIA_INT_ADR_EXT) 231 #define MCPCIA_INT_MASK0(ccp) (_SYBRIDGE(ccp) | _MCPCIA_INT_MASK0) 232 #define MCPCIA_INT_MASK1(ccp) (_SYBRIDGE(ccp) | _MCPCIA_INT_MASK1) 233 #define MCPCIA_INT_ACK0(ccp) (_SYBRIDGE(ccp) | _MCPCIA_INT_ACK0) 234 #define MCPCIA_INT_ACK1(ccp) (_SYBRIDGE(ccp) | _MCPCIA_INT_ACK1) 235 #define MCPCIA_PERF_MON(ccp) (_SYBRIDGE(ccp) | _MCPCIA_PERF_MON) 236 #define MCPCIA_PERF_CONT(ccp) (_SYBRIDGE(ccp) | _MCPCIA_PERF_CONT) 237 #define MCPCIA_CAP_DIAG(ccp) (_SYBRIDGE(ccp) | _MCPCIA_CAP_DIAG) 238 #define MCPCIA_SCRATCH0(ccp) (_SYBRIDGE(ccp) | _MCPCIA_SCRATCH0) 239 #define MCPCIA_SCRATCH1(ccp) (_SYBRIDGE(ccp) | _MCPCIA_SCRATCH1) 240 #define MCPCIA_TOM(ccp) (_SYBRIDGE(ccp) | _MCPCIA_TOM) 241 #define MCPCIA_MC_ERR0(ccp) (_SYBRIDGE(ccp) | _MCPCIA_MC_ERR0) 242 #define MCPCIA_MC_ERR1(ccp) (_SYBRIDGE(ccp) | _MCPCIA_MC_ERR1) 243 #define MCPCIA_CAP_ERR(ccp) (_SYBRIDGE(ccp) | _MCPCIA_CAP_ERR) 244 #define MCPCIA_PCI_ERR1(ccp) (_SYBRIDGE(ccp) | _MCPCIA_PCI_ERR1) 245 #define MCPCIA_MDPA_STAT(ccp) (_SYBRIDGE(ccp) | _MCPCIA_MDPA_STAT) 246 #define MCPCIA_MDPA_SYN(ccp) (_SYBRIDGE(ccp) | _MCPCIA_MDPA_SYN) 247 #define MCPCIA_MDPA_DIAG(ccp) (_SYBRIDGE(ccp) | _MCPCIA_MDPA_DIAG) 248 #define MCPCIA_MDPB_STAT(ccp) (_SYBRIDGE(ccp) | _MCPCIA_MDPB_STAT) 249 #define MCPCIA_MDPB_SYN(ccp) (_SYBRIDGE(ccp) | _MCPCIA_MDPB_SYN) 250 #define MCPCIA_MDPB_DIAG(ccp) (_SYBRIDGE(ccp) | _MCPCIA_MDPB_DIAG) 251 #define MCPCIA_SG_TBIA(ccp) (_SYBRIDGE(ccp) | _MCPCIA_SG_TBIA) 252 #define MCPCIA_HBASE(ccp) (_SYBRIDGE(ccp) | _MCPCIA_HBASE) 253 #define MCPCIA_W0_BASE(ccp) (_SYBRIDGE(ccp) | _MCPCIA_W0_BASE) 254 #define MCPCIA_W0_MASK(ccp) (_SYBRIDGE(ccp) | _MCPCIA_W0_MASK) 255 #define MCPCIA_T0_BASE(ccp) (_SYBRIDGE(ccp) | _MCPCIA_T0_BASE) 256 #define MCPCIA_W1_BASE(ccp) (_SYBRIDGE(ccp) | _MCPCIA_W1_BASE) 257 #define MCPCIA_W1_MASK(ccp) (_SYBRIDGE(ccp) | _MCPCIA_W1_MASK) 258 #define MCPCIA_T1_BASE(ccp) (_SYBRIDGE(ccp) | _MCPCIA_T1_BASE) 259 #define MCPCIA_W2_BASE(ccp) (_SYBRIDGE(ccp) | _MCPCIA_W2_BASE) 260 #define MCPCIA_W2_MASK(ccp) (_SYBRIDGE(ccp) | _MCPCIA_W2_MASK) 261 #define MCPCIA_T2_BASE(ccp) (_SYBRIDGE(ccp) | _MCPCIA_T2_BASE) 262 #define MCPCIA_W3_BASE(ccp) (_SYBRIDGE(ccp) | _MCPCIA_W3_BASE) 263 #define MCPCIA_W3_MASK(ccp) (_SYBRIDGE(ccp) | _MCPCIA_W3_MASK) 264 #define MCPCIA_T3_BASE(ccp) (_SYBRIDGE(ccp) | _MCPCIA_T3_BASE) 265 #define MCPCIA_W_DAC(ccp) (_SYBRIDGE(ccp) | _MCPCIA_W_DAC) 266 267 /* 268 * This is here for what error handling will get as a collected subpacket. 269 */ 270 271 struct mcpcia_iodsnap { 272 uint64_t base_addr; 273 uint32_t whami; 274 uint32_t rsvd0; 275 uint32_t pci_rev; 276 uint32_t cap_ctrl; 277 uint32_t hae_mem; 278 uint32_t hae_io; 279 uint32_t int_ctl; 280 uint32_t int_reg; 281 uint32_t int_mask0; 282 uint32_t int_mask1; 283 uint32_t mc_err0; 284 uint32_t mc_err1; 285 uint32_t cap_err; 286 uint32_t sys_env; 287 uint32_t pci_err1; 288 uint32_t mdpa_stat; 289 uint32_t mdpa_syn; 290 uint32_t mdpb_stat; 291 uint32_t mdpb_syn; 292 uint32_t rsvd2; 293 uint32_t rsvd3; 294 uint32_t rsvd4; 295 }; 296 297 /* 298 * PCI_REV Register definitions 299 */ 300 #define CAP_REV(reg) ((reg) & 0xf) 301 #define HORSE_REV(reg) (((reg) >> 4) & 0xf) 302 #define SADDLE_REV(reg) (((reg) >> 8) & 0xf) 303 #define SADDLE_TYPE(reg) (((reg) >> 12) & 0x3) 304 #define EISA_PRESENT(reg) ((reg) & (1 << 15)) 305 #define IS_MCPCIA_MAGIC(reg) (((reg) & 0xffff0000) == 0x6000000) 306 307 308 /* 309 * WHOAMI Register definitions 310 * 311 * The Device ID is an echo of the MID of the CPU reading this register- 312 * cheezy way to figure out who you are (ask someone else!). 313 */ 314 #define MCBUS_CPU_MID(x) ((x) & 0x7) 315 #define MCBUS_CPU_INFO(x) (((x) >> 6) & 0xff) 316 #define CPU_Fill_Err 0x80 317 #define CPU_DTAG_Perr 0x40 318 #define CPU_RevMask 0x38 319 #define CPU_RevShift 3 320 #define CPU_BCacheMask 0x3 321 #define CPU_BCache_0MB 0 322 #define CPU_BCache_1MB 1 323 #define CPU_BCache_2MB 2 324 #define CPU_BCache_4MB 3 325 326 /* 327 * PCI Latency Register Definitions 328 */ 329 #define PCI_LAT_SHIFT 8 /* it's in the 2nd byte. */ 330 331 /* 332 * CAP Control Register Definitions 333 */ 334 #define CAP_LED_ON 0x00000001 /* Selftest LED passed */ 335 #define CAP_EV56_BW_EN 0x00000002 /* BW Enables (EV56, EV6 only) */ 336 #define CAP_DLY_RD_EN 0x00000010 /* PCI Delayed Reads Enabled */ 337 #define CAP_MEM_EN 0x00000020 /* Respond to PCI transactions */ 338 #define CAP_REQ64_EN 0x00000040 /* Request 64 bit data transactions */ 339 #define CAP_ACK64_EN 0x00000080 /* Respond to 64 bit data "" */ 340 #define CAP_ADR_PAR_EN 0x00000100 /* Check PCI address Parity */ 341 #define CAP_MC_CA_PAR 0x00000200 /* Check MC bus CMD/Address Parity */ 342 #define CAP_MC_NXM_EN 0x00000400 /* Check for MC NXM */ 343 #define CAP_BUS_MON 0x00000800 /* Check for PCI errs (as bystander) */ 344 /* bits 19:16 control number of pending write transactions */ 345 #define SHORT 0 346 #define MED 1 347 #define LONG 2 348 #define CAP_MEMRD_PREFETCH_SHIFT 20 349 #define CAP_MEMRDLN_PREFETCH_SHIFT 22 350 #define CAP_MEMRDMULT_PREFETCH_SHIFT 24 351 #define CAP_PARTIAL_WRITE (1 << 26) 352 353 #define CAP_ARB_BPRI 0x00000000 /* Bridge Priority Arb */ 354 #define CAP_ARB_RROBIN 0x40000000 /* "" Round Robin */ 355 #define CAP_ARB_RROBIN1 0x80000000 /* "" Round Robin #1 */ 356 357 /* 358 * Diagnostic Register Bits 359 */ 360 /* CAP_DIAG register */ 361 #define CAP_DIAG_PCIRESET 0x1 /* 362 * WriteOnly. Assert 1 for 100usec min., 363 * then write zero. NOTE: deadlocks 364 * exist in h/w if anything but this 365 * register is accessed while reset 366 * is asserted. 367 */ 368 #define CAP_DIAG_MC_ADRPE (1<<30) /* Invert MC Bus Address/Parity */ 369 #define CAP_DIAG_PCI_ADRPE (1<<31) /* Force bad PCI parity (low 32) */ 370 371 /* MDPA_DIAG or MDPB_DIAG registers */ 372 #define MDPX_ECC_ENA (1<<28) /* Enable ECC on MC Bus (default 1) */ 373 #define MDPX_PAR_ENA (1<<29) /* Enable Parity on PCI (default 0) */ 374 #define MDPX_DIAG_FPE_PCI (1<<30) /* Force PCI parity error */ 375 #define MDPX_DIAG_USE_CHK (1<<31) /* 376 * When set, DMA write cycles use the 377 * value in the low 8 bits of this 378 * register (MDPA or MDPB) as ECC 379 * sent onto main memory. 380 */ 381 382 /* 383 * Interrupt Specific bits... 384 * 385 * Mostly we don't have to mess with any of the interrupt specific registers 386 * as the SRM has set most of this pretty complex stuff up for us. 387 * 388 * However, to enable specific interrupts, we need to set some bits 389 * in imask0 if we want to have them vectored to PALcode for appropriate 390 * dispatch. 391 */ 392 393 /* 394 * bits 0-15 correspond to 4 slots (time 4 buspins) for each PCI bus. 395 * bit 16 is the NCR810 onboard SCSI interrupt. 396 * bits 19-20 are reserved. 397 */ 398 399 #define MCPCIA_I2C_CTRL_INTR (1<<17) 400 #define MCPCIA_I2C_CTRL_BUS_ERR (1<<18) 401 402 #define MCPCIA_8259_NMI_INTR (1<<21) 403 #define MCPCIA_SOFT_ERR_INTR (1<<22) 404 #define MCPCIA_HARD_ERR_INTR (1<<23) 405 406 #ifdef YET 407 #define MCPCIA_GEN_IENABL \ 408 (MCPCIA_I2C_CTRL_BUS_ERR|MCPCIA_SOFT_ERR_INTR|MCPCIA_HARD_ERR_INTR) 409 #else 410 #define MCPCIA_GEN_IENABL \ 411 (MCPCIA_SOFT_ERR_INTR|MCPCIA_HARD_ERR_INTR) 412 #endif 413 414 /* 415 * DMA Address Specific bits... 416 */ 417 418 #define MCPCIA_WBASE_EN 0x1 419 #define MCPCIA_WBASE_SG 0x2 420 #define MCPCIA_WBASE_DAC 0x8 421 #define MCPCIA_WBASE_BSHIFT 20 422 423 #define MCPCIA_WMASK_1M 0x00000000 424 #define MCPCIA_WMASK_2M 0x00100000 425 #define MCPCIA_WMASK_4M 0x00300000 426 #define MCPCIA_WMASK_8M 0x00700000 427 #define MCPCIA_WMASK_16M 0x00f00000 428 #define MCPCIA_WMASK_32M 0x01f00000 429 #define MCPCIA_WMASK_64M 0x03f00000 430 #define MCPCIA_WMASK_128M 0x07f00000 431 #define MCPCIA_WMASK_256M 0x0ff00000 432 #define MCPCIA_WMASK_512M 0x1ff00000 433 #define MCPCIA_WMASK_1G 0x3ff00000 434 #define MCPCIA_WMASK_2G 0x7ff00000 435 #define MCPCIA_WMASK_4G 0xfff00000 436 437 /* 438 * The WBASEX register contains bits 39:10 of a physical address 439 * shifted to bits 31:2 of this 32 bit register. Namely, shifted 440 * right by 8 bits. 441 */ 442 #define MCPCIA_TBASEX_SHIFT 8 443