tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1#ifndef __ALPHA_T2__H__
2#define __ALPHA_T2__H__
3
4#include <linux/types.h>
5#include <linux/spinlock.h>
6#include <asm/compiler.h>
7#include <asm/system.h>
8
9/*
10 * T2 is the internal name for the core logic chipset which provides
11 * memory controller and PCI access for the SABLE-based systems.
12 *
13 * This file is based on:
14 *
15 * SABLE I/O Specification
16 * Revision/Update Information: 1.3
17 *
18 * jestabro@amt.tay1.dec.com Initial Version.
19 *
20 */
21
22#define T2_MEM_R1_MASK 0x07ffffff /* Mem sparse region 1 mask is 26 bits */
23
24/* GAMMA-SABLE is a SABLE with EV5-based CPUs */
25/* All LYNX machines, EV4 or EV5, use the GAMMA bias also */
26#define _GAMMA_BIAS 0x8000000000UL
27
28#if defined(CONFIG_ALPHA_GENERIC)
29#define GAMMA_BIAS alpha_mv.sys.t2.gamma_bias
30#elif defined(CONFIG_ALPHA_GAMMA)
31#define GAMMA_BIAS _GAMMA_BIAS
32#else
33#define GAMMA_BIAS 0
34#endif
35
36/*
37 * Memory spaces:
38 */
39#define T2_CONF (IDENT_ADDR + GAMMA_BIAS + 0x390000000UL)
40#define T2_IO (IDENT_ADDR + GAMMA_BIAS + 0x3a0000000UL)
41#define T2_SPARSE_MEM (IDENT_ADDR + GAMMA_BIAS + 0x200000000UL)
42#define T2_DENSE_MEM (IDENT_ADDR + GAMMA_BIAS + 0x3c0000000UL)
43
44#define T2_IOCSR (IDENT_ADDR + GAMMA_BIAS + 0x38e000000UL)
45#define T2_CERR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000020UL)
46#define T2_CERR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000040UL)
47#define T2_CERR3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000060UL)
48#define T2_PERR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000080UL)
49#define T2_PERR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0000a0UL)
50#define T2_PSCR (IDENT_ADDR + GAMMA_BIAS + 0x38e0000c0UL)
51#define T2_HAE_1 (IDENT_ADDR + GAMMA_BIAS + 0x38e0000e0UL)
52#define T2_HAE_2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000100UL)
53#define T2_HBASE (IDENT_ADDR + GAMMA_BIAS + 0x38e000120UL)
54#define T2_WBASE1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000140UL)
55#define T2_WMASK1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000160UL)
56#define T2_TBASE1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000180UL)
57#define T2_WBASE2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001a0UL)
58#define T2_WMASK2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001c0UL)
59#define T2_TBASE2 (IDENT_ADDR + GAMMA_BIAS + 0x38e0001e0UL)
60#define T2_TLBBR (IDENT_ADDR + GAMMA_BIAS + 0x38e000200UL)
61#define T2_IVR (IDENT_ADDR + GAMMA_BIAS + 0x38e000220UL)
62#define T2_HAE_3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000240UL)
63#define T2_HAE_4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000260UL)
64
65/* The CSRs below are T3/T4 only */
66#define T2_WBASE3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000280UL)
67#define T2_WMASK3 (IDENT_ADDR + GAMMA_BIAS + 0x38e0002a0UL)
68#define T2_TBASE3 (IDENT_ADDR + GAMMA_BIAS + 0x38e0002c0UL)
69
70#define T2_TDR0 (IDENT_ADDR + GAMMA_BIAS + 0x38e000300UL)
71#define T2_TDR1 (IDENT_ADDR + GAMMA_BIAS + 0x38e000320UL)
72#define T2_TDR2 (IDENT_ADDR + GAMMA_BIAS + 0x38e000340UL)
73#define T2_TDR3 (IDENT_ADDR + GAMMA_BIAS + 0x38e000360UL)
74#define T2_TDR4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000380UL)
75#define T2_TDR5 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003a0UL)
76#define T2_TDR6 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003c0UL)
77#define T2_TDR7 (IDENT_ADDR + GAMMA_BIAS + 0x38e0003e0UL)
78
79#define T2_WBASE4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000400UL)
80#define T2_WMASK4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000420UL)
81#define T2_TBASE4 (IDENT_ADDR + GAMMA_BIAS + 0x38e000440UL)
82
83#define T2_AIR (IDENT_ADDR + GAMMA_BIAS + 0x38e000460UL)
84#define T2_VAR (IDENT_ADDR + GAMMA_BIAS + 0x38e000480UL)
85#define T2_DIR (IDENT_ADDR + GAMMA_BIAS + 0x38e0004a0UL)
86#define T2_ICE (IDENT_ADDR + GAMMA_BIAS + 0x38e0004c0UL)
87
88#define T2_HAE_ADDRESS T2_HAE_1
89
90/* T2 CSRs are in the non-cachable primary IO space from 3.8000.0000 to
91 3.8fff.ffff
92 *
93 * +--------------+ 3 8000 0000
94 * | CPU 0 CSRs |
95 * +--------------+ 3 8100 0000
96 * | CPU 1 CSRs |
97 * +--------------+ 3 8200 0000
98 * | CPU 2 CSRs |
99 * +--------------+ 3 8300 0000
100 * | CPU 3 CSRs |
101 * +--------------+ 3 8400 0000
102 * | CPU Reserved |
103 * +--------------+ 3 8700 0000
104 * | Mem Reserved |
105 * +--------------+ 3 8800 0000
106 * | Mem 0 CSRs |
107 * +--------------+ 3 8900 0000
108 * | Mem 1 CSRs |
109 * +--------------+ 3 8a00 0000
110 * | Mem 2 CSRs |
111 * +--------------+ 3 8b00 0000
112 * | Mem 3 CSRs |
113 * +--------------+ 3 8c00 0000
114 * | Mem Reserved |
115 * +--------------+ 3 8e00 0000
116 * | PCI Bridge |
117 * +--------------+ 3 8f00 0000
118 * | Expansion IO |
119 * +--------------+ 3 9000 0000
120 *
121 *
122 */
123#define T2_CPU0_BASE (IDENT_ADDR + GAMMA_BIAS + 0x380000000L)
124#define T2_CPU1_BASE (IDENT_ADDR + GAMMA_BIAS + 0x381000000L)
125#define T2_CPU2_BASE (IDENT_ADDR + GAMMA_BIAS + 0x382000000L)
126#define T2_CPU3_BASE (IDENT_ADDR + GAMMA_BIAS + 0x383000000L)
127
128#define T2_CPUn_BASE(n) (T2_CPU0_BASE + (((n)&3) * 0x001000000L))
129
130#define T2_MEM0_BASE (IDENT_ADDR + GAMMA_BIAS + 0x388000000L)
131#define T2_MEM1_BASE (IDENT_ADDR + GAMMA_BIAS + 0x389000000L)
132#define T2_MEM2_BASE (IDENT_ADDR + GAMMA_BIAS + 0x38a000000L)
133#define T2_MEM3_BASE (IDENT_ADDR + GAMMA_BIAS + 0x38b000000L)
134
135
136/*
137 * Sable CPU Module CSRS
138 *
139 * These are CSRs for hardware other than the CPU chip on the CPU module.
140 * The CPU module has Backup Cache control logic, Cbus control logic, and
141 * interrupt control logic on it. There is a duplicate tag store to speed
142 * up maintaining cache coherency.
143 */
144
145struct sable_cpu_csr {
146 unsigned long bcc; long fill_00[3]; /* Backup Cache Control */
147 unsigned long bcce; long fill_01[3]; /* Backup Cache Correctable Error */
148 unsigned long bccea; long fill_02[3]; /* B-Cache Corr Err Address Latch */
149 unsigned long bcue; long fill_03[3]; /* B-Cache Uncorrectable Error */
150 unsigned long bcuea; long fill_04[3]; /* B-Cache Uncorr Err Addr Latch */
151 unsigned long dter; long fill_05[3]; /* Duplicate Tag Error */
152 unsigned long cbctl; long fill_06[3]; /* CBus Control */
153 unsigned long cbe; long fill_07[3]; /* CBus Error */
154 unsigned long cbeal; long fill_08[3]; /* CBus Error Addr Latch low */
155 unsigned long cbeah; long fill_09[3]; /* CBus Error Addr Latch high */
156 unsigned long pmbx; long fill_10[3]; /* Processor Mailbox */
157 unsigned long ipir; long fill_11[3]; /* Inter-Processor Int Request */
158 unsigned long sic; long fill_12[3]; /* System Interrupt Clear */
159 unsigned long adlk; long fill_13[3]; /* Address Lock (LDxL/STxC) */
160 unsigned long madrl; long fill_14[3]; /* CBus Miss Address */
161 unsigned long rev; long fill_15[3]; /* CMIC Revision */
162};
163
164/*
165 * Data structure for handling T2 machine checks:
166 */
167struct el_t2_frame_header {
168 unsigned int elcf_fid; /* Frame ID (from above) */
169 unsigned int elcf_size; /* Size of frame in bytes */
170};
171
172struct el_t2_procdata_mcheck {
173 unsigned long elfmc_paltemp[32]; /* PAL TEMP REGS. */
174 /* EV4-specific fields */
175 unsigned long elfmc_exc_addr; /* Addr of excepting insn. */
176 unsigned long elfmc_exc_sum; /* Summary of arith traps. */
177 unsigned long elfmc_exc_mask; /* Exception mask (from exc_sum). */
178 unsigned long elfmc_iccsr; /* IBox hardware enables. */
179 unsigned long elfmc_pal_base; /* Base address for PALcode. */
180 unsigned long elfmc_hier; /* Hardware Interrupt Enable. */
181 unsigned long elfmc_hirr; /* Hardware Interrupt Request. */
182 unsigned long elfmc_mm_csr; /* D-stream fault info. */
183 unsigned long elfmc_dc_stat; /* D-cache status (ECC/Parity Err). */
184 unsigned long elfmc_dc_addr; /* EV3 Phys Addr for ECC/DPERR. */
185 unsigned long elfmc_abox_ctl; /* ABox Control Register. */
186 unsigned long elfmc_biu_stat; /* BIU Status. */
187 unsigned long elfmc_biu_addr; /* BUI Address. */
188 unsigned long elfmc_biu_ctl; /* BIU Control. */
189 unsigned long elfmc_fill_syndrome; /* For correcting ECC errors. */
190 unsigned long elfmc_fill_addr;/* Cache block which was being read. */
191 unsigned long elfmc_va; /* Effective VA of fault or miss. */
192 unsigned long elfmc_bc_tag; /* Backup Cache Tag Probe Results. */
193};
194
195/*
196 * Sable processor specific Machine Check Data segment.
197 */
198
199struct el_t2_logout_header {
200 unsigned int elfl_size; /* size in bytes of logout area. */
201 unsigned int elfl_sbz1:31; /* Should be zero. */
202 unsigned int elfl_retry:1; /* Retry flag. */
203 unsigned int elfl_procoffset; /* Processor-specific offset. */
204 unsigned int elfl_sysoffset; /* Offset of system-specific. */
205 unsigned int elfl_error_type; /* PAL error type code. */
206 unsigned int elfl_frame_rev; /* PAL Frame revision. */
207};
208struct el_t2_sysdata_mcheck {
209 unsigned long elcmc_bcc; /* CSR 0 */
210 unsigned long elcmc_bcce; /* CSR 1 */
211 unsigned long elcmc_bccea; /* CSR 2 */
212 unsigned long elcmc_bcue; /* CSR 3 */
213 unsigned long elcmc_bcuea; /* CSR 4 */
214 unsigned long elcmc_dter; /* CSR 5 */
215 unsigned long elcmc_cbctl; /* CSR 6 */
216 unsigned long elcmc_cbe; /* CSR 7 */
217 unsigned long elcmc_cbeal; /* CSR 8 */
218 unsigned long elcmc_cbeah; /* CSR 9 */
219 unsigned long elcmc_pmbx; /* CSR 10 */
220 unsigned long elcmc_ipir; /* CSR 11 */
221 unsigned long elcmc_sic; /* CSR 12 */
222 unsigned long elcmc_adlk; /* CSR 13 */
223 unsigned long elcmc_madrl; /* CSR 14 */
224 unsigned long elcmc_crrev4; /* CSR 15 */
225};
226
227/*
228 * Sable memory error frame - sable pfms section 3.42
229 */
230struct el_t2_data_memory {
231 struct el_t2_frame_header elcm_hdr; /* ID$MEM-FERR = 0x08 */
232 unsigned int elcm_module; /* Module id. */
233 unsigned int elcm_res04; /* Reserved. */
234 unsigned long elcm_merr; /* CSR0: Error Reg 1. */
235 unsigned long elcm_mcmd1; /* CSR1: Command Trap 1. */
236 unsigned long elcm_mcmd2; /* CSR2: Command Trap 2. */
237 unsigned long elcm_mconf; /* CSR3: Configuration. */
238 unsigned long elcm_medc1; /* CSR4: EDC Status 1. */
239 unsigned long elcm_medc2; /* CSR5: EDC Status 2. */
240 unsigned long elcm_medcc; /* CSR6: EDC Control. */
241 unsigned long elcm_msctl; /* CSR7: Stream Buffer Control. */
242 unsigned long elcm_mref; /* CSR8: Refresh Control. */
243 unsigned long elcm_filter; /* CSR9: CRD Filter Control. */
244};
245
246
247/*
248 * Sable other CPU error frame - sable pfms section 3.43
249 */
250struct el_t2_data_other_cpu {
251 short elco_cpuid; /* CPU ID */
252 short elco_res02[3];
253 unsigned long elco_bcc; /* CSR 0 */
254 unsigned long elco_bcce; /* CSR 1 */
255 unsigned long elco_bccea; /* CSR 2 */
256 unsigned long elco_bcue; /* CSR 3 */
257 unsigned long elco_bcuea; /* CSR 4 */
258 unsigned long elco_dter; /* CSR 5 */
259 unsigned long elco_cbctl; /* CSR 6 */
260 unsigned long elco_cbe; /* CSR 7 */
261 unsigned long elco_cbeal; /* CSR 8 */
262 unsigned long elco_cbeah; /* CSR 9 */
263 unsigned long elco_pmbx; /* CSR 10 */
264 unsigned long elco_ipir; /* CSR 11 */
265 unsigned long elco_sic; /* CSR 12 */
266 unsigned long elco_adlk; /* CSR 13 */
267 unsigned long elco_madrl; /* CSR 14 */
268 unsigned long elco_crrev4; /* CSR 15 */
269};
270
271/*
272 * Sable other CPU error frame - sable pfms section 3.44
273 */
274struct el_t2_data_t2{
275 struct el_t2_frame_header elct_hdr; /* ID$T2-FRAME */
276 unsigned long elct_iocsr; /* IO Control and Status Register */
277 unsigned long elct_cerr1; /* Cbus Error Register 1 */
278 unsigned long elct_cerr2; /* Cbus Error Register 2 */
279 unsigned long elct_cerr3; /* Cbus Error Register 3 */
280 unsigned long elct_perr1; /* PCI Error Register 1 */
281 unsigned long elct_perr2; /* PCI Error Register 2 */
282 unsigned long elct_hae0_1; /* High Address Extension Register 1 */
283 unsigned long elct_hae0_2; /* High Address Extension Register 2 */
284 unsigned long elct_hbase; /* High Base Register */
285 unsigned long elct_wbase1; /* Window Base Register 1 */
286 unsigned long elct_wmask1; /* Window Mask Register 1 */
287 unsigned long elct_tbase1; /* Translated Base Register 1 */
288 unsigned long elct_wbase2; /* Window Base Register 2 */
289 unsigned long elct_wmask2; /* Window Mask Register 2 */
290 unsigned long elct_tbase2; /* Translated Base Register 2 */
291 unsigned long elct_tdr0; /* TLB Data Register 0 */
292 unsigned long elct_tdr1; /* TLB Data Register 1 */
293 unsigned long elct_tdr2; /* TLB Data Register 2 */
294 unsigned long elct_tdr3; /* TLB Data Register 3 */
295 unsigned long elct_tdr4; /* TLB Data Register 4 */
296 unsigned long elct_tdr5; /* TLB Data Register 5 */
297 unsigned long elct_tdr6; /* TLB Data Register 6 */
298 unsigned long elct_tdr7; /* TLB Data Register 7 */
299};
300
301/*
302 * Sable error log data structure - sable pfms section 3.40
303 */
304struct el_t2_data_corrected {
305 unsigned long elcpb_biu_stat;
306 unsigned long elcpb_biu_addr;
307 unsigned long elcpb_biu_ctl;
308 unsigned long elcpb_fill_syndrome;
309 unsigned long elcpb_fill_addr;
310 unsigned long elcpb_bc_tag;
311};
312
313/*
314 * Sable error log data structure
315 * Note there are 4 memory slots on sable (see t2.h)
316 */
317struct el_t2_frame_mcheck {
318 struct el_t2_frame_header elfmc_header; /* ID$P-FRAME_MCHECK */
319 struct el_t2_logout_header elfmc_hdr;
320 struct el_t2_procdata_mcheck elfmc_procdata;
321 struct el_t2_sysdata_mcheck elfmc_sysdata;
322 struct el_t2_data_t2 elfmc_t2data;
323 struct el_t2_data_memory elfmc_memdata[4];
324 struct el_t2_frame_header elfmc_footer; /* empty */
325};
326
327
328/*
329 * Sable error log data structures on memory errors
330 */
331struct el_t2_frame_corrected {
332 struct el_t2_frame_header elfcc_header; /* ID$P-BC-COR */
333 struct el_t2_logout_header elfcc_hdr;
334 struct el_t2_data_corrected elfcc_procdata;
335/* struct el_t2_data_t2 elfcc_t2data; */
336/* struct el_t2_data_memory elfcc_memdata[4]; */
337 struct el_t2_frame_header elfcc_footer; /* empty */
338};
339
340
341#ifdef __KERNEL__
342
343#ifndef __EXTERN_INLINE
344#define __EXTERN_INLINE extern inline
345#define __IO_EXTERN_INLINE
346#endif
347
348/*
349 * I/O functions:
350 *
351 * T2 (the core logic PCI/memory support chipset for the SABLE
352 * series of processors uses a sparse address mapping scheme to
353 * get at PCI memory and I/O.
354 */
355
356#define vip volatile int *
357#define vuip volatile unsigned int *
358
359static inline u8 t2_inb(unsigned long addr)
360{
361 long result = *(vip) ((addr << 5) + T2_IO + 0x00);
362 return __kernel_extbl(result, addr & 3);
363}
364
365static inline void t2_outb(u8 b, unsigned long addr)
366{
367 unsigned long w;
368
369 w = __kernel_insbl(b, addr & 3);
370 *(vuip) ((addr << 5) + T2_IO + 0x00) = w;
371 mb();
372}
373
374static inline u16 t2_inw(unsigned long addr)
375{
376 long result = *(vip) ((addr << 5) + T2_IO + 0x08);
377 return __kernel_extwl(result, addr & 3);
378}
379
380static inline void t2_outw(u16 b, unsigned long addr)
381{
382 unsigned long w;
383
384 w = __kernel_inswl(b, addr & 3);
385 *(vuip) ((addr << 5) + T2_IO + 0x08) = w;
386 mb();
387}
388
389static inline u32 t2_inl(unsigned long addr)
390{
391 return *(vuip) ((addr << 5) + T2_IO + 0x18);
392}
393
394static inline void t2_outl(u32 b, unsigned long addr)
395{
396 *(vuip) ((addr << 5) + T2_IO + 0x18) = b;
397 mb();
398}
399
400
401/*
402 * Memory functions.
403 *
404 * For reading and writing 8 and 16 bit quantities we need to
405 * go through one of the three sparse address mapping regions
406 * and use the HAE_MEM CSR to provide some bits of the address.
407 * The following few routines use only sparse address region 1
408 * which gives 1Gbyte of accessible space which relates exactly
409 * to the amount of PCI memory mapping *into* system address space.
410 * See p 6-17 of the specification but it looks something like this:
411 *
412 * 21164 Address:
413 *
414 * 3 2 1
415 * 9876543210987654321098765432109876543210
416 * 1ZZZZ0.PCI.QW.Address............BBLL
417 *
418 * ZZ = SBZ
419 * BB = Byte offset
420 * LL = Transfer length
421 *
422 * PCI Address:
423 *
424 * 3 2 1
425 * 10987654321098765432109876543210
426 * HHH....PCI.QW.Address........ 00
427 *
428 * HHH = 31:29 HAE_MEM CSR
429 *
430 */
431
432#define t2_set_hae { \
433 msb = addr >> 27; \
434 addr &= T2_MEM_R1_MASK; \
435 set_hae(msb); \
436}
437
438static DEFINE_SPINLOCK(t2_hae_lock);
439
440__EXTERN_INLINE u8 t2_readb(const volatile void __iomem *xaddr)
441{
442 unsigned long addr = (unsigned long) xaddr;
443 unsigned long result, msb;
444 unsigned long flags;
445 spin_lock_irqsave(&t2_hae_lock, flags);
446
447 t2_set_hae;
448
449 result = *(vip) ((addr << 5) + T2_SPARSE_MEM + 0x00);
450 spin_unlock_irqrestore(&t2_hae_lock, flags);
451 return __kernel_extbl(result, addr & 3);
452}
453
454__EXTERN_INLINE u16 t2_readw(const volatile void __iomem *xaddr)
455{
456 unsigned long addr = (unsigned long) xaddr;
457 unsigned long result, msb;
458 unsigned long flags;
459 spin_lock_irqsave(&t2_hae_lock, flags);
460
461 t2_set_hae;
462
463 result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08);
464 spin_unlock_irqrestore(&t2_hae_lock, flags);
465 return __kernel_extwl(result, addr & 3);
466}
467
468/*
469 * On SABLE with T2, we must use SPARSE memory even for 32-bit access,
470 * because we cannot access all of DENSE without changing its HAE.
471 */
472__EXTERN_INLINE u32 t2_readl(const volatile void __iomem *xaddr)
473{
474 unsigned long addr = (unsigned long) xaddr;
475 unsigned long result, msb;
476 unsigned long flags;
477 spin_lock_irqsave(&t2_hae_lock, flags);
478
479 t2_set_hae;
480
481 result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18);
482 spin_unlock_irqrestore(&t2_hae_lock, flags);
483 return result & 0xffffffffUL;
484}
485
486__EXTERN_INLINE u64 t2_readq(const volatile void __iomem *xaddr)
487{
488 unsigned long addr = (unsigned long) xaddr;
489 unsigned long r0, r1, work, msb;
490 unsigned long flags;
491 spin_lock_irqsave(&t2_hae_lock, flags);
492
493 t2_set_hae;
494
495 work = (addr << 5) + T2_SPARSE_MEM + 0x18;
496 r0 = *(vuip)(work);
497 r1 = *(vuip)(work + (4 << 5));
498 spin_unlock_irqrestore(&t2_hae_lock, flags);
499 return r1 << 32 | r0;
500}
501
502__EXTERN_INLINE void t2_writeb(u8 b, volatile void __iomem *xaddr)
503{
504 unsigned long addr = (unsigned long) xaddr;
505 unsigned long msb, w;
506 unsigned long flags;
507 spin_lock_irqsave(&t2_hae_lock, flags);
508
509 t2_set_hae;
510
511 w = __kernel_insbl(b, addr & 3);
512 *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x00) = w;
513 spin_unlock_irqrestore(&t2_hae_lock, flags);
514}
515
516__EXTERN_INLINE void t2_writew(u16 b, volatile void __iomem *xaddr)
517{
518 unsigned long addr = (unsigned long) xaddr;
519 unsigned long msb, w;
520 unsigned long flags;
521 spin_lock_irqsave(&t2_hae_lock, flags);
522
523 t2_set_hae;
524
525 w = __kernel_inswl(b, addr & 3);
526 *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08) = w;
527 spin_unlock_irqrestore(&t2_hae_lock, flags);
528}
529
530/*
531 * On SABLE with T2, we must use SPARSE memory even for 32-bit access,
532 * because we cannot access all of DENSE without changing its HAE.
533 */
534__EXTERN_INLINE void t2_writel(u32 b, volatile void __iomem *xaddr)
535{
536 unsigned long addr = (unsigned long) xaddr;
537 unsigned long msb;
538 unsigned long flags;
539 spin_lock_irqsave(&t2_hae_lock, flags);
540
541 t2_set_hae;
542
543 *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18) = b;
544 spin_unlock_irqrestore(&t2_hae_lock, flags);
545}
546
547__EXTERN_INLINE void t2_writeq(u64 b, volatile void __iomem *xaddr)
548{
549 unsigned long addr = (unsigned long) xaddr;
550 unsigned long msb, work;
551 unsigned long flags;
552 spin_lock_irqsave(&t2_hae_lock, flags);
553
554 t2_set_hae;
555
556 work = (addr << 5) + T2_SPARSE_MEM + 0x18;
557 *(vuip)work = b;
558 *(vuip)(work + (4 << 5)) = b >> 32;
559 spin_unlock_irqrestore(&t2_hae_lock, flags);
560}
561
562__EXTERN_INLINE void __iomem *t2_ioportmap(unsigned long addr)
563{
564 return (void __iomem *)(addr + T2_IO);
565}
566
567__EXTERN_INLINE void __iomem *t2_ioremap(unsigned long addr,
568 unsigned long size)
569{
570 return (void __iomem *)(addr + T2_DENSE_MEM);
571}
572
573__EXTERN_INLINE int t2_is_ioaddr(unsigned long addr)
574{
575 return (long)addr >= 0;
576}
577
578__EXTERN_INLINE int t2_is_mmio(const volatile void __iomem *addr)
579{
580 return (unsigned long)addr >= T2_DENSE_MEM;
581}
582
583/* New-style ioread interface. The mmio routines are so ugly for T2 that
584 it doesn't make sense to merge the pio and mmio routines. */
585
586#define IOPORT(OS, NS) \
587__EXTERN_INLINE unsigned int t2_ioread##NS(void __iomem *xaddr) \
588{ \
589 if (t2_is_mmio(xaddr)) \
590 return t2_read##OS(xaddr - T2_DENSE_MEM); \
591 else \
592 return t2_in##OS((unsigned long)xaddr - T2_IO); \
593} \
594__EXTERN_INLINE void t2_iowrite##NS(u##NS b, void __iomem *xaddr) \
595{ \
596 if (t2_is_mmio(xaddr)) \
597 t2_write##OS(b, xaddr - T2_DENSE_MEM); \
598 else \
599 t2_out##OS(b, (unsigned long)xaddr - T2_IO); \
600}
601
602IOPORT(b, 8)
603IOPORT(w, 16)
604IOPORT(l, 32)
605
606#undef IOPORT
607
608#undef vip
609#undef vuip
610
611#undef __IO_PREFIX
612#define __IO_PREFIX t2
613#define t2_trivial_rw_bw 0
614#define t2_trivial_rw_lq 0
615#define t2_trivial_io_bw 0
616#define t2_trivial_io_lq 0
617#define t2_trivial_iounmap 1
618#include <asm/io_trivial.h>
619
620#ifdef __IO_EXTERN_INLINE
621#undef __EXTERN_INLINE
622#undef __IO_EXTERN_INLINE
623#endif
624
625#endif /* __KERNEL__ */
626
627#endif /* __ALPHA_T2__H__ */