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License cleanup: add SPDX GPL-2.0 license identifier to files with no license
[linux-block.git] / arch / alpha / include / asm / core_t2.h
CommitLineData
b2441318 1/* SPDX-License-Identifier: GPL-2.0 */
1da177e4
LT		 2#ifndef __ALPHA_T2__H__
3#define __ALPHA_T2__H__
4
98c532ec
IK		 5/* Fit everything into one 128MB HAE window. */
6#define T2_ONE_HAE_WINDOW 1
7
1da177e4
LT		 8#include <linux/types.h>
9#include <linux/spinlock.h>
10#include <asm/compiler.h>
1da177e4
LT		 11
12/*
13 * T2 is the internal name for the core logic chipset which provides
14 * memory controller and PCI access for the SABLE-based systems.
15 *
16 * This file is based on:
17 *
18 * SABLE I/O Specification
19 * Revision/Update Information: 1.3
20 *
21 * jestabro@amt.tay1.dec.com Initial Version.
22 *
23 */
24
98c532ec 25#define T2_MEM_R1_MASK 0x07ffffff /* Mem sparse region 1 mask is 27 bits */
1da177e4
LT		 26
27/* GAMMA-SABLE is a SABLE with EV5-based CPUs */
28/* All LYNX machines, EV4 or EV5, use the GAMMA bias also */
29#define _GAMMA_BIAS 0x8000000000UL
30
31#if defined(CONFIG_ALPHA_GENERIC)
32#define GAMMA_BIAS alpha_mv.sys.t2.gamma_bias
33#elif defined(CONFIG_ALPHA_GAMMA)
34#define GAMMA_BIAS _GAMMA_BIAS
35#else
36#define GAMMA_BIAS 0
37#endif
38
39/*
40 * Memory spaces:
41 */
42#define T2_CONF (IDENT_ADDR + GAMMA_BIAS + 0x390000000UL)
43#define T2_IO (IDENT_ADDR + GAMMA_BIAS + 0x3a0000000UL)
44#define T2_SPARSE_MEM (IDENT_ADDR + GAMMA_BIAS + 0x200000000UL)
45#define T2_DENSE_MEM (IDENT_ADDR + GAMMA_BIAS + 0x3c0000000UL)
46
47#define T2_IOCSR (IDENT_ADDR + GAMMA_BIAS + 0x38e000000UL)
48#define T2_CERR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000020UL)
49#define T2_CERR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000040UL)
50#define T2_CERR3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000060UL)
51#define T2_PERR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000080UL)
52#define T2_PERR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0000a0UL)
53#define T2_PSCR (IDENT_ADDR + GAMMA_BIAS + 0x38e0000c0UL)
54#define T2_HAE_1 (IDENT_ADDR + GAMMA_BIAS + 0x38e0000e0UL)
55#define T2_HAE_2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000100UL)
56#define T2_HBASE (IDENT_ADDR + GAMMA_BIAS + 0x38e000120UL)
57#define T2_WBASE1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000140UL)
58#define T2_WMASK1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000160UL)
59#define T2_TBASE1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000180UL)
60#define T2_WBASE2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001a0UL)
61#define T2_WMASK2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001c0UL)
62#define T2_TBASE2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001e0UL)
63#define T2_TLBBR (IDENT_ADDR + GAMMA_BIAS + 0x38e000200UL)
64#define T2_IVR (IDENT_ADDR + GAMMA_BIAS + 0x38e000220UL)
65#define T2_HAE_3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000240UL)
66#define T2_HAE_4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000260UL)
67
68/* The CSRs below are T3/T4 only */
69#define T2_WBASE3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000280UL)
70#define T2_WMASK3 (IDENT_ADDR + GAMMA_BIAS + 0x38e0002a0UL)
71#define T2_TBASE3 (IDENT_ADDR + GAMMA_BIAS + 0x38e0002c0UL)
72
73#define T2_TDR0 (IDENT_ADDR + GAMMA_BIAS + 0x38e000300UL)
74#define T2_TDR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000320UL)
75#define T2_TDR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000340UL)
76#define T2_TDR3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000360UL)
77#define T2_TDR4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000380UL)
78#define T2_TDR5 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003a0UL)
79#define T2_TDR6 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003c0UL)
80#define T2_TDR7 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003e0UL)
81
82#define T2_WBASE4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000400UL)
83#define T2_WMASK4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000420UL)
84#define T2_TBASE4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000440UL)
85
86#define T2_AIR (IDENT_ADDR + GAMMA_BIAS + 0x38e000460UL)
87#define T2_VAR (IDENT_ADDR + GAMMA_BIAS + 0x38e000480UL)
88#define T2_DIR (IDENT_ADDR + GAMMA_BIAS + 0x38e0004a0UL)
89#define T2_ICE (IDENT_ADDR + GAMMA_BIAS + 0x38e0004c0UL)
90
98c532ec 91#ifndef T2_ONE_HAE_WINDOW
1da177e4 92#define T2_HAE_ADDRESS T2_HAE_1
98c532ec 93#endif
1da177e4
LT		 94
95/* T2 CSRs are in the non-cachable primary IO space from 3.8000.0000 to
96 3.8fff.ffff
97 *
98 * +--------------+ 3 8000 0000
99 * | CPU 0 CSRs |
100 * +--------------+ 3 8100 0000
101 * | CPU 1 CSRs |
102 * +--------------+ 3 8200 0000
103 * | CPU 2 CSRs |
104 * +--------------+ 3 8300 0000
105 * | CPU 3 CSRs |
106 * +--------------+ 3 8400 0000
107 * | CPU Reserved |
108 * +--------------+ 3 8700 0000
109 * | Mem Reserved |
110 * +--------------+ 3 8800 0000
111 * | Mem 0 CSRs |
112 * +--------------+ 3 8900 0000
113 * | Mem 1 CSRs |
114 * +--------------+ 3 8a00 0000
115 * | Mem 2 CSRs |
116 * +--------------+ 3 8b00 0000
117 * | Mem 3 CSRs |
118 * +--------------+ 3 8c00 0000
119 * | Mem Reserved |
120 * +--------------+ 3 8e00 0000
121 * | PCI Bridge |
122 * +--------------+ 3 8f00 0000
123 * | Expansion IO |
124 * +--------------+ 3 9000 0000
125 *
126 *
127 */
128#define T2_CPU0_BASE (IDENT_ADDR + GAMMA_BIAS + 0x380000000L)
129#define T2_CPU1_BASE (IDENT_ADDR + GAMMA_BIAS + 0x381000000L)
130#define T2_CPU2_BASE (IDENT_ADDR + GAMMA_BIAS + 0x382000000L)
131#define T2_CPU3_BASE (IDENT_ADDR + GAMMA_BIAS + 0x383000000L)
132
133#define T2_CPUn_BASE(n) (T2_CPU0_BASE + (((n)&3) * 0x001000000L))
134
135#define T2_MEM0_BASE (IDENT_ADDR + GAMMA_BIAS + 0x388000000L)
136#define T2_MEM1_BASE (IDENT_ADDR + GAMMA_BIAS + 0x389000000L)
137#define T2_MEM2_BASE (IDENT_ADDR + GAMMA_BIAS + 0x38a000000L)
138#define T2_MEM3_BASE (IDENT_ADDR + GAMMA_BIAS + 0x38b000000L)
139
140
141/*
142 * Sable CPU Module CSRS
143 *
144 * These are CSRs for hardware other than the CPU chip on the CPU module.
145 * The CPU module has Backup Cache control logic, Cbus control logic, and
146 * interrupt control logic on it. There is a duplicate tag store to speed
147 * up maintaining cache coherency.
148 */
149
150struct sable_cpu_csr {
151 unsigned long bcc; long fill_00[3]; /* Backup Cache Control */
152 unsigned long bcce; long fill_01[3]; /* Backup Cache Correctable Error */
153 unsigned long bccea; long fill_02[3]; /* B-Cache Corr Err Address Latch */
154 unsigned long bcue; long fill_03[3]; /* B-Cache Uncorrectable Error */
155 unsigned long bcuea; long fill_04[3]; /* B-Cache Uncorr Err Addr Latch */
156 unsigned long dter; long fill_05[3]; /* Duplicate Tag Error */
157 unsigned long cbctl; long fill_06[3]; /* CBus Control */
158 unsigned long cbe; long fill_07[3]; /* CBus Error */
159 unsigned long cbeal; long fill_08[3]; /* CBus Error Addr Latch low */
160 unsigned long cbeah; long fill_09[3]; /* CBus Error Addr Latch high */
161 unsigned long pmbx; long fill_10[3]; /* Processor Mailbox */
162 unsigned long ipir; long fill_11[3]; /* Inter-Processor Int Request */
163 unsigned long sic; long fill_12[3]; /* System Interrupt Clear */
164 unsigned long adlk; long fill_13[3]; /* Address Lock (LDxL/STxC) */
165 unsigned long madrl; long fill_14[3]; /* CBus Miss Address */
166 unsigned long rev; long fill_15[3]; /* CMIC Revision */
167};
168
169/*
170 * Data structure for handling T2 machine checks:
171 */
172struct el_t2_frame_header {
173 unsigned int elcf_fid; /* Frame ID (from above) */
174 unsigned int elcf_size; /* Size of frame in bytes */
175};
176
177struct el_t2_procdata_mcheck {
178 unsigned long elfmc_paltemp[32]; /* PAL TEMP REGS. */
179 /* EV4-specific fields */
180 unsigned long elfmc_exc_addr; /* Addr of excepting insn. */
181 unsigned long elfmc_exc_sum; /* Summary of arith traps. */
182 unsigned long elfmc_exc_mask; /* Exception mask (from exc_sum). */
183 unsigned long elfmc_iccsr; /* IBox hardware enables. */
184 unsigned long elfmc_pal_base; /* Base address for PALcode. */
185 unsigned long elfmc_hier; /* Hardware Interrupt Enable. */
186 unsigned long elfmc_hirr; /* Hardware Interrupt Request. */
187 unsigned long elfmc_mm_csr; /* D-stream fault info. */
188 unsigned long elfmc_dc_stat; /* D-cache status (ECC/Parity Err). */
189 unsigned long elfmc_dc_addr; /* EV3 Phys Addr for ECC/DPERR. */
190 unsigned long elfmc_abox_ctl; /* ABox Control Register. */
191 unsigned long elfmc_biu_stat; /* BIU Status. */
192 unsigned long elfmc_biu_addr; /* BUI Address. */
193 unsigned long elfmc_biu_ctl; /* BIU Control. */
194 unsigned long elfmc_fill_syndrome; /* For correcting ECC errors. */
195 unsigned long elfmc_fill_addr;/* Cache block which was being read. */
196 unsigned long elfmc_va; /* Effective VA of fault or miss. */
197 unsigned long elfmc_bc_tag; /* Backup Cache Tag Probe Results. */
198};
199
200/*
201 * Sable processor specific Machine Check Data segment.
202 */
203
204struct el_t2_logout_header {
205 unsigned int elfl_size; /* size in bytes of logout area. */
206 unsigned int elfl_sbz1:31; /* Should be zero. */
207 unsigned int elfl_retry:1; /* Retry flag. */
208 unsigned int elfl_procoffset; /* Processor-specific offset. */
209 unsigned int elfl_sysoffset; /* Offset of system-specific. */
210 unsigned int elfl_error_type; /* PAL error type code. */
211 unsigned int elfl_frame_rev; /* PAL Frame revision. */
212};
213struct el_t2_sysdata_mcheck {
214 unsigned long elcmc_bcc; /* CSR 0 */
215 unsigned long elcmc_bcce; /* CSR 1 */
216 unsigned long elcmc_bccea; /* CSR 2 */
217 unsigned long elcmc_bcue; /* CSR 3 */
218 unsigned long elcmc_bcuea; /* CSR 4 */
219 unsigned long elcmc_dter; /* CSR 5 */
220 unsigned long elcmc_cbctl; /* CSR 6 */
221 unsigned long elcmc_cbe; /* CSR 7 */
222 unsigned long elcmc_cbeal; /* CSR 8 */
223 unsigned long elcmc_cbeah; /* CSR 9 */
224 unsigned long elcmc_pmbx; /* CSR 10 */
225 unsigned long elcmc_ipir; /* CSR 11 */
226 unsigned long elcmc_sic; /* CSR 12 */
227 unsigned long elcmc_adlk; /* CSR 13 */
228 unsigned long elcmc_madrl; /* CSR 14 */
229 unsigned long elcmc_crrev4; /* CSR 15 */
230};
231
232/*
233 * Sable memory error frame - sable pfms section 3.42
234 */
235struct el_t2_data_memory {
236 struct el_t2_frame_header elcm_hdr; /* ID$MEM-FERR = 0x08 */
237 unsigned int elcm_module; /* Module id. */
238 unsigned int elcm_res04; /* Reserved. */
239 unsigned long elcm_merr; /* CSR0: Error Reg 1. */
240 unsigned long elcm_mcmd1; /* CSR1: Command Trap 1. */
241 unsigned long elcm_mcmd2; /* CSR2: Command Trap 2. */
242 unsigned long elcm_mconf; /* CSR3: Configuration. */
243 unsigned long elcm_medc1; /* CSR4: EDC Status 1. */
244 unsigned long elcm_medc2; /* CSR5: EDC Status 2. */
245 unsigned long elcm_medcc; /* CSR6: EDC Control. */
246 unsigned long elcm_msctl; /* CSR7: Stream Buffer Control. */
247 unsigned long elcm_mref; /* CSR8: Refresh Control. */
248 unsigned long elcm_filter; /* CSR9: CRD Filter Control. */
249};
250
251
252/*
253 * Sable other CPU error frame - sable pfms section 3.43
254 */
255struct el_t2_data_other_cpu {
256 short elco_cpuid; /* CPU ID */
257 short elco_res02[3];
258 unsigned long elco_bcc; /* CSR 0 */
259 unsigned long elco_bcce; /* CSR 1 */
260 unsigned long elco_bccea; /* CSR 2 */
261 unsigned long elco_bcue; /* CSR 3 */
262 unsigned long elco_bcuea; /* CSR 4 */
263 unsigned long elco_dter; /* CSR 5 */
264 unsigned long elco_cbctl; /* CSR 6 */
265 unsigned long elco_cbe; /* CSR 7 */
266 unsigned long elco_cbeal; /* CSR 8 */
267 unsigned long elco_cbeah; /* CSR 9 */
268 unsigned long elco_pmbx; /* CSR 10 */
269 unsigned long elco_ipir; /* CSR 11 */
270 unsigned long elco_sic; /* CSR 12 */
271 unsigned long elco_adlk; /* CSR 13 */
272 unsigned long elco_madrl; /* CSR 14 */
273 unsigned long elco_crrev4; /* CSR 15 */
274};
275
276/*
277 * Sable other CPU error frame - sable pfms section 3.44
278 */
279struct el_t2_data_t2{
280 struct el_t2_frame_header elct_hdr; /* ID$T2-FRAME */
281 unsigned long elct_iocsr; /* IO Control and Status Register */
282 unsigned long elct_cerr1; /* Cbus Error Register 1 */
283 unsigned long elct_cerr2; /* Cbus Error Register 2 */
284 unsigned long elct_cerr3; /* Cbus Error Register 3 */
285 unsigned long elct_perr1; /* PCI Error Register 1 */
286 unsigned long elct_perr2; /* PCI Error Register 2 */
287 unsigned long elct_hae0_1; /* High Address Extension Register 1 */
288 unsigned long elct_hae0_2; /* High Address Extension Register 2 */
289 unsigned long elct_hbase; /* High Base Register */
290 unsigned long elct_wbase1; /* Window Base Register 1 */
291 unsigned long elct_wmask1; /* Window Mask Register 1 */
292 unsigned long elct_tbase1; /* Translated Base Register 1 */
293 unsigned long elct_wbase2; /* Window Base Register 2 */
294 unsigned long elct_wmask2; /* Window Mask Register 2 */
295 unsigned long elct_tbase2; /* Translated Base Register 2 */
296 unsigned long elct_tdr0; /* TLB Data Register 0 */
297 unsigned long elct_tdr1; /* TLB Data Register 1 */
298 unsigned long elct_tdr2; /* TLB Data Register 2 */
299 unsigned long elct_tdr3; /* TLB Data Register 3 */
300 unsigned long elct_tdr4; /* TLB Data Register 4 */
301 unsigned long elct_tdr5; /* TLB Data Register 5 */
302 unsigned long elct_tdr6; /* TLB Data Register 6 */
303 unsigned long elct_tdr7; /* TLB Data Register 7 */
304};
305
306/*
307 * Sable error log data structure - sable pfms section 3.40
308 */
309struct el_t2_data_corrected {
310 unsigned long elcpb_biu_stat;
311 unsigned long elcpb_biu_addr;
312 unsigned long elcpb_biu_ctl;
313 unsigned long elcpb_fill_syndrome;
314 unsigned long elcpb_fill_addr;
315 unsigned long elcpb_bc_tag;
316};
317
318/*
319 * Sable error log data structure
320 * Note there are 4 memory slots on sable (see t2.h)
321 */
322struct el_t2_frame_mcheck {
323 struct el_t2_frame_header elfmc_header; /* ID$P-FRAME_MCHECK */
324 struct el_t2_logout_header elfmc_hdr;
325 struct el_t2_procdata_mcheck elfmc_procdata;
326 struct el_t2_sysdata_mcheck elfmc_sysdata;
327 struct el_t2_data_t2 elfmc_t2data;
328 struct el_t2_data_memory elfmc_memdata[4];
329 struct el_t2_frame_header elfmc_footer; /* empty */
330};
331
332
333/*
334 * Sable error log data structures on memory errors
335 */
336struct el_t2_frame_corrected {
337 struct el_t2_frame_header elfcc_header; /* ID$P-BC-COR */
338 struct el_t2_logout_header elfcc_hdr;
339 struct el_t2_data_corrected elfcc_procdata;
340/* struct el_t2_data_t2 elfcc_t2data; */
341/* struct el_t2_data_memory elfcc_memdata[4]; */
342 struct el_t2_frame_header elfcc_footer; /* empty */
343};
344
345
346#ifdef __KERNEL__
347
348#ifndef __EXTERN_INLINE
349#define __EXTERN_INLINE extern inline
350#define __IO_EXTERN_INLINE
351#endif
352
353/*
354 * I/O functions:
355 *
356 * T2 (the core logic PCI/memory support chipset for the SABLE
357 * series of processors uses a sparse address mapping scheme to
358 * get at PCI memory and I/O.
359 */
360
361#define vip volatile int *
362#define vuip volatile unsigned int *
363
d559d4a2 364extern inline u8 t2_inb(unsigned long addr)
1da177e4
LT		 365{
366 long result = *(vip) ((addr << 5) + T2_IO + 0x00);
367 return __kernel_extbl(result, addr & 3);
368}
369
d559d4a2 370extern inline void t2_outb(u8 b, unsigned long addr)
1da177e4
LT		 371{
372 unsigned long w;
373
374 w = __kernel_insbl(b, addr & 3);
375 *(vuip) ((addr << 5) + T2_IO + 0x00) = w;
376 mb();
377}
378
d559d4a2 379extern inline u16 t2_inw(unsigned long addr)
1da177e4
LT		 380{
381 long result = *(vip) ((addr << 5) + T2_IO + 0x08);
382 return __kernel_extwl(result, addr & 3);
383}
384
d559d4a2 385extern inline void t2_outw(u16 b, unsigned long addr)
1da177e4
LT		 386{
387 unsigned long w;
388
389 w = __kernel_inswl(b, addr & 3);
390 *(vuip) ((addr << 5) + T2_IO + 0x08) = w;
391 mb();
392}
393
d559d4a2 394extern inline u32 t2_inl(unsigned long addr)
1da177e4
LT		 395{
396 return *(vuip) ((addr << 5) + T2_IO + 0x18);
397}
398
d559d4a2 399extern inline void t2_outl(u32 b, unsigned long addr)
1da177e4
LT		 400{
401 *(vuip) ((addr << 5) + T2_IO + 0x18) = b;
402 mb();
403}
404
405
406/*
407 * Memory functions.
408 *
409 * For reading and writing 8 and 16 bit quantities we need to
410 * go through one of the three sparse address mapping regions
411 * and use the HAE_MEM CSR to provide some bits of the address.
412 * The following few routines use only sparse address region 1
413 * which gives 1Gbyte of accessible space which relates exactly
414 * to the amount of PCI memory mapping *into* system address space.
415 * See p 6-17 of the specification but it looks something like this:
416 *
417 * 21164 Address:
418 *
419 * 3 2 1
420 * 9876543210987654321098765432109876543210
421 * 1ZZZZ0.PCI.QW.Address............BBLL
422 *
423 * ZZ = SBZ
424 * BB = Byte offset
425 * LL = Transfer length
426 *
427 * PCI Address:
428 *
429 * 3 2 1
430 * 10987654321098765432109876543210
431 * HHH....PCI.QW.Address........ 00
432 *
433 * HHH = 31:29 HAE_MEM CSR
434 *
435 */
436
98c532ec
IK		 437#ifdef T2_ONE_HAE_WINDOW
438#define t2_set_hae
439#else
1da177e4 440#define t2_set_hae { \
98c532ec 441 unsigned long msb = addr >> 27; \
1da177e4
LT		 442 addr &= T2_MEM_R1_MASK; \
443 set_hae(msb); \
444}
98c532ec 445#endif
1da177e4 446
5ae0b6c7
JE		 447/*
448 * NOTE: take T2_DENSE_MEM off in each readX/writeX routine, since
449 * they may be called directly, rather than through the
450 * ioreadNN/iowriteNN routines.
451 */
452
1da177e4
LT		 453__EXTERN_INLINE u8 t2_readb(const volatile void __iomem *xaddr)
454{
5ae0b6c7 455 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
98c532ec 456 unsigned long result;
1da177e4
LT		 457
458 t2_set_hae;
459
460 result = *(vip) ((addr << 5) + T2_SPARSE_MEM + 0x00);
1da177e4
LT		 461 return __kernel_extbl(result, addr & 3);
462}
463
464__EXTERN_INLINE u16 t2_readw(const volatile void __iomem *xaddr)
465{
5ae0b6c7 466 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
98c532ec 467 unsigned long result;
1da177e4
LT		 468
469 t2_set_hae;
470
471 result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08);
1da177e4
LT		 472 return __kernel_extwl(result, addr & 3);
473}
474
475/*
476 * On SABLE with T2, we must use SPARSE memory even for 32-bit access,
477 * because we cannot access all of DENSE without changing its HAE.
478 */
479__EXTERN_INLINE u32 t2_readl(const volatile void __iomem *xaddr)
480{
5ae0b6c7 481 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
98c532ec 482 unsigned long result;
1da177e4
LT		 483
484 t2_set_hae;
485
486 result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18);
1da177e4
LT		 487 return result & 0xffffffffUL;
488}
489
490__EXTERN_INLINE u64 t2_readq(const volatile void __iomem *xaddr)
491{
5ae0b6c7 492 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
98c532ec 493 unsigned long r0, r1, work;
1da177e4
LT		 494
495 t2_set_hae;
496
497 work = (addr << 5) + T2_SPARSE_MEM + 0x18;
498 r0 = *(vuip)(work);
499 r1 = *(vuip)(work + (4 << 5));
1da177e4
LT		 500 return r1 << 32 | r0;
501}
502
503__EXTERN_INLINE void t2_writeb(u8 b, volatile void __iomem *xaddr)
504{
5ae0b6c7 505 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
98c532ec 506 unsigned long w;
1da177e4
LT		 507
508 t2_set_hae;
509
510 w = __kernel_insbl(b, addr & 3);
511 *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x00) = w;
1da177e4
LT		 512}
513
514__EXTERN_INLINE void t2_writew(u16 b, volatile void __iomem *xaddr)
515{
5ae0b6c7 516 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
98c532ec 517 unsigned long w;
1da177e4
LT		 518
519 t2_set_hae;
520
521 w = __kernel_inswl(b, addr & 3);
522 *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08) = w;
1da177e4
LT		 523}
524
525/*
526 * On SABLE with T2, we must use SPARSE memory even for 32-bit access,
527 * because we cannot access all of DENSE without changing its HAE.
528 */
529__EXTERN_INLINE void t2_writel(u32 b, volatile void __iomem *xaddr)
530{
5ae0b6c7 531 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
1da177e4
LT		 532
533 t2_set_hae;
534
535 *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18) = b;
1da177e4
LT		 536}
537
538__EXTERN_INLINE void t2_writeq(u64 b, volatile void __iomem *xaddr)
539{
5ae0b6c7 540 unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
98c532ec 541 unsigned long work;
1da177e4
LT		 542
543 t2_set_hae;
544
545 work = (addr << 5) + T2_SPARSE_MEM + 0x18;
546 *(vuip)work = b;
547 *(vuip)(work + (4 << 5)) = b >> 32;
1da177e4
LT		 548}
549
550__EXTERN_INLINE void __iomem *t2_ioportmap(unsigned long addr)
551{
552 return (void __iomem *)(addr + T2_IO);
553}
554
555__EXTERN_INLINE void __iomem *t2_ioremap(unsigned long addr,
556 unsigned long size)
557{
558 return (void __iomem *)(addr + T2_DENSE_MEM);
559}
560
561__EXTERN_INLINE int t2_is_ioaddr(unsigned long addr)
562{
563 return (long)addr >= 0;
564}
565
566__EXTERN_INLINE int t2_is_mmio(const volatile void __iomem *addr)
567{
568 return (unsigned long)addr >= T2_DENSE_MEM;
569}
570
571/* New-style ioread interface. The mmio routines are so ugly for T2 that
572 it doesn't make sense to merge the pio and mmio routines. */
573
574#define IOPORT(OS, NS) \
575__EXTERN_INLINE unsigned int t2_ioread##NS(void __iomem *xaddr) \
576{ \
577 if (t2_is_mmio(xaddr)) \
5ae0b6c7 578 return t2_read##OS(xaddr); \
1da177e4
LT		 579 else \
580 return t2_in##OS((unsigned long)xaddr - T2_IO); \
581} \
582__EXTERN_INLINE void t2_iowrite##NS(u##NS b, void __iomem *xaddr) \
583{ \
584 if (t2_is_mmio(xaddr)) \
5ae0b6c7 585 t2_write##OS(b, xaddr); \
1da177e4
LT		 586 else \
587 t2_out##OS(b, (unsigned long)xaddr - T2_IO); \
588}
589
590IOPORT(b, 8)
591IOPORT(w, 16)
592IOPORT(l, 32)
593
594#undef IOPORT
595
596#undef vip
597#undef vuip
598
599#undef __IO_PREFIX
600#define __IO_PREFIX t2
601#define t2_trivial_rw_bw 0
602#define t2_trivial_rw_lq 0
603#define t2_trivial_io_bw 0
604#define t2_trivial_io_lq 0
605#define t2_trivial_iounmap 1
606#include <asm/io_trivial.h>
607
608#ifdef __IO_EXTERN_INLINE
609#undef __EXTERN_INLINE
610#undef __IO_EXTERN_INLINE
611#endif
612
613#endif /* __KERNEL__ */
614
615#endif /* __ALPHA_T2__H__ */
Linux 6.x block layer and io_uring tree(s)