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5213a780 KE |
1 | /* |
2 | * Copyright (C) 2004 Konrad Eisele (eiselekd@web.de,konrad@gaisler.com) Gaisler Research | |
3 | * Copyright (C) 2004 Stefan Holst (mail@s-holst.de) Uni-Stuttgart | |
4 | * Copyright (C) 2009 Daniel Hellstrom (daniel@gaisler.com) Aeroflex Gaisler AB | |
5 | * Copyright (C) 2009 Konrad Eisele (konrad@gaisler.com) Aeroflex Gaisler AB | |
6 | */ | |
7 | ||
8 | #ifndef LEON_H_INCLUDE | |
9 | #define LEON_H_INCLUDE | |
10 | ||
11 | #ifdef CONFIG_SPARC_LEON | |
12 | ||
13 | #define ASI_LEON_NOCACHE 0x01 | |
14 | ||
15 | #define ASI_LEON_DCACHE_MISS 0x1 | |
16 | ||
17 | #define ASI_LEON_CACHEREGS 0x02 | |
18 | #define ASI_LEON_IFLUSH 0x10 | |
19 | #define ASI_LEON_DFLUSH 0x11 | |
20 | ||
21 | #define ASI_LEON_MMUFLUSH 0x18 | |
22 | #define ASI_LEON_MMUREGS 0x19 | |
23 | #define ASI_LEON_BYPASS 0x1c | |
24 | #define ASI_LEON_FLUSH_PAGE 0x10 | |
25 | ||
26 | /* mmu register access, ASI_LEON_MMUREGS */ | |
27 | #define LEON_CNR_CTRL 0x000 | |
28 | #define LEON_CNR_CTXP 0x100 | |
29 | #define LEON_CNR_CTX 0x200 | |
30 | #define LEON_CNR_F 0x300 | |
31 | #define LEON_CNR_FADDR 0x400 | |
32 | ||
33 | #define LEON_CNR_CTX_NCTX 256 /*number of MMU ctx */ | |
34 | ||
35 | #define LEON_CNR_CTRL_TLBDIS 0x80000000 | |
36 | ||
37 | #define LEON_MMUTLB_ENT_MAX 64 | |
38 | ||
39 | /* | |
40 | * diagnostic access from mmutlb.vhd: | |
41 | * 0: pte address | |
42 | * 4: pte | |
43 | * 8: additional flags | |
44 | */ | |
45 | #define LEON_DIAGF_LVL 0x3 | |
46 | #define LEON_DIAGF_WR 0x8 | |
47 | #define LEON_DIAGF_WR_SHIFT 3 | |
48 | #define LEON_DIAGF_HIT 0x10 | |
49 | #define LEON_DIAGF_HIT_SHIFT 4 | |
50 | #define LEON_DIAGF_CTX 0x1fe0 | |
51 | #define LEON_DIAGF_CTX_SHIFT 5 | |
52 | #define LEON_DIAGF_VALID 0x2000 | |
53 | #define LEON_DIAGF_VALID_SHIFT 13 | |
54 | ||
55 | /* | |
56 | * Interrupt Sources | |
57 | * | |
58 | * The interrupt source numbers directly map to the trap type and to | |
59 | * the bits used in the Interrupt Clear, Interrupt Force, Interrupt Mask, | |
60 | * and the Interrupt Pending Registers. | |
61 | */ | |
62 | #define LEON_INTERRUPT_CORRECTABLE_MEMORY_ERROR 1 | |
63 | #define LEON_INTERRUPT_UART_1_RX_TX 2 | |
64 | #define LEON_INTERRUPT_UART_0_RX_TX 3 | |
65 | #define LEON_INTERRUPT_EXTERNAL_0 4 | |
66 | #define LEON_INTERRUPT_EXTERNAL_1 5 | |
67 | #define LEON_INTERRUPT_EXTERNAL_2 6 | |
68 | #define LEON_INTERRUPT_EXTERNAL_3 7 | |
69 | #define LEON_INTERRUPT_TIMER1 8 | |
70 | #define LEON_INTERRUPT_TIMER2 9 | |
71 | #define LEON_INTERRUPT_EMPTY1 10 | |
72 | #define LEON_INTERRUPT_EMPTY2 11 | |
73 | #define LEON_INTERRUPT_OPEN_ETH 12 | |
74 | #define LEON_INTERRUPT_EMPTY4 13 | |
75 | #define LEON_INTERRUPT_EMPTY5 14 | |
76 | #define LEON_INTERRUPT_EMPTY6 15 | |
77 | ||
78 | /* irq masks */ | |
79 | #define LEON_HARD_INT(x) (1 << (x)) /* irq 0-15 */ | |
80 | #define LEON_IRQMASK_R 0x0000fffe /* bit 15- 1 of lregs.irqmask */ | |
81 | #define LEON_IRQPRIO_R 0xfffe0000 /* bit 31-17 of lregs.irqmask */ | |
82 | ||
83 | /* leon uart register definitions */ | |
84 | #define LEON_OFF_UDATA 0x0 | |
85 | #define LEON_OFF_USTAT 0x4 | |
86 | #define LEON_OFF_UCTRL 0x8 | |
87 | #define LEON_OFF_USCAL 0xc | |
88 | ||
89 | #define LEON_UCTRL_RE 0x01 | |
90 | #define LEON_UCTRL_TE 0x02 | |
91 | #define LEON_UCTRL_RI 0x04 | |
92 | #define LEON_UCTRL_TI 0x08 | |
93 | #define LEON_UCTRL_PS 0x10 | |
94 | #define LEON_UCTRL_PE 0x20 | |
95 | #define LEON_UCTRL_FL 0x40 | |
96 | #define LEON_UCTRL_LB 0x80 | |
97 | ||
98 | #define LEON_USTAT_DR 0x01 | |
99 | #define LEON_USTAT_TS 0x02 | |
100 | #define LEON_USTAT_TH 0x04 | |
101 | #define LEON_USTAT_BR 0x08 | |
102 | #define LEON_USTAT_OV 0x10 | |
103 | #define LEON_USTAT_PE 0x20 | |
104 | #define LEON_USTAT_FE 0x40 | |
105 | ||
106 | #define LEON_MCFG2_SRAMDIS 0x00002000 | |
107 | #define LEON_MCFG2_SDRAMEN 0x00004000 | |
108 | #define LEON_MCFG2_SRAMBANKSZ 0x00001e00 /* [12-9] */ | |
109 | #define LEON_MCFG2_SRAMBANKSZ_SHIFT 9 | |
110 | #define LEON_MCFG2_SDRAMBANKSZ 0x03800000 /* [25-23] */ | |
111 | #define LEON_MCFG2_SDRAMBANKSZ_SHIFT 23 | |
112 | ||
113 | #define LEON_TCNT0_MASK 0x7fffff | |
114 | ||
115 | #define LEON_USTAT_ERROR (LEON_USTAT_OV | LEON_USTAT_PE | LEON_USTAT_FE) | |
116 | /* no break yet */ | |
117 | ||
118 | #define ASI_LEON3_SYSCTRL 0x02 | |
119 | #define ASI_LEON3_SYSCTRL_ICFG 0x08 | |
120 | #define ASI_LEON3_SYSCTRL_DCFG 0x0c | |
121 | #define ASI_LEON3_SYSCTRL_CFG_SNOOPING (1 << 27) | |
122 | #define ASI_LEON3_SYSCTRL_CFG_SSIZE(c) (1 << ((c >> 20) & 0xf)) | |
123 | ||
124 | #ifndef __ASSEMBLY__ | |
125 | ||
126 | /* do a virtual address read without cache */ | |
127 | static inline unsigned long leon_readnobuffer_reg(unsigned long paddr) | |
128 | { | |
129 | unsigned long retval; | |
130 | __asm__ __volatile__("lda [%1] %2, %0\n\t" : | |
131 | "=r"(retval) : "r"(paddr), "i"(ASI_LEON_NOCACHE)); | |
132 | return retval; | |
133 | } | |
134 | ||
135 | /* do a physical address bypass write, i.e. for 0x80000000 */ | |
136 | static inline void leon_store_reg(unsigned long paddr, unsigned long value) | |
137 | { | |
138 | __asm__ __volatile__("sta %0, [%1] %2\n\t" : : "r"(value), "r"(paddr), | |
139 | "i"(ASI_LEON_BYPASS) : "memory"); | |
140 | } | |
141 | ||
142 | /* do a physical address bypass load, i.e. for 0x80000000 */ | |
143 | static inline unsigned long leon_load_reg(unsigned long paddr) | |
144 | { | |
145 | unsigned long retval; | |
146 | __asm__ __volatile__("lda [%1] %2, %0\n\t" : | |
147 | "=r"(retval) : "r"(paddr), "i"(ASI_LEON_BYPASS)); | |
148 | return retval; | |
149 | } | |
150 | ||
4309e568 | 151 | static inline void leon_srmmu_disabletlb(void) |
5213a780 KE |
152 | { |
153 | unsigned int retval; | |
154 | __asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0), | |
155 | "i"(ASI_LEON_MMUREGS)); | |
156 | retval |= LEON_CNR_CTRL_TLBDIS; | |
157 | __asm__ __volatile__("sta %0, [%%g0] %2\n\t" : : "r"(retval), "r"(0), | |
158 | "i"(ASI_LEON_MMUREGS) : "memory"); | |
159 | } | |
160 | ||
4309e568 | 161 | static inline void leon_srmmu_enabletlb(void) |
5213a780 KE |
162 | { |
163 | unsigned int retval; | |
164 | __asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0), | |
165 | "i"(ASI_LEON_MMUREGS)); | |
166 | retval = retval & ~LEON_CNR_CTRL_TLBDIS; | |
167 | __asm__ __volatile__("sta %0, [%%g0] %2\n\t" : : "r"(retval), "r"(0), | |
168 | "i"(ASI_LEON_MMUREGS) : "memory"); | |
169 | } | |
170 | ||
171 | /* macro access for leon_load_reg() and leon_store_reg() */ | |
172 | #define LEON3_BYPASS_LOAD_PA(x) (leon_load_reg((unsigned long)(x))) | |
173 | #define LEON3_BYPASS_STORE_PA(x, v) (leon_store_reg((unsigned long)(x), (unsigned long)(v))) | |
174 | #define LEON3_BYPASS_ANDIN_PA(x, v) LEON3_BYPASS_STORE_PA(x, LEON3_BYPASS_LOAD_PA(x) & v) | |
175 | #define LEON3_BYPASS_ORIN_PA(x, v) LEON3_BYPASS_STORE_PA(x, LEON3_BYPASS_LOAD_PA(x) | v) | |
176 | #define LEON_BYPASS_LOAD_PA(x) leon_load_reg((unsigned long)(x)) | |
177 | #define LEON_BYPASS_STORE_PA(x, v) leon_store_reg((unsigned long)(x), (unsigned long)(v)) | |
178 | #define LEON_REGLOAD_PA(x) leon_load_reg((unsigned long)(x)+LEON_PREGS) | |
179 | #define LEON_REGSTORE_PA(x, v) leon_store_reg((unsigned long)(x)+LEON_PREGS, (unsigned long)(v)) | |
180 | #define LEON_REGSTORE_OR_PA(x, v) LEON_REGSTORE_PA(x, LEON_REGLOAD_PA(x) | (unsigned long)(v)) | |
181 | #define LEON_REGSTORE_AND_PA(x, v) LEON_REGSTORE_PA(x, LEON_REGLOAD_PA(x) & (unsigned long)(v)) | |
182 | ||
183 | /* macro access for leon_readnobuffer_reg() */ | |
184 | #define LEON_BYPASSCACHE_LOAD_VA(x) leon_readnobuffer_reg((unsigned long)(x)) | |
185 | ||
5213a780 KE |
186 | extern void leon_init(void); |
187 | extern void leon_switch_mm(void); | |
188 | extern void leon_init_IRQ(void); | |
189 | ||
190 | extern unsigned long last_valid_pfn; | |
191 | ||
4309e568 | 192 | static inline unsigned long sparc_leon3_get_dcachecfg(void) |
5213a780 KE |
193 | { |
194 | unsigned int retval; | |
195 | __asm__ __volatile__("lda [%1] %2, %0\n\t" : | |
196 | "=r"(retval) : | |
197 | "r"(ASI_LEON3_SYSCTRL_DCFG), | |
198 | "i"(ASI_LEON3_SYSCTRL)); | |
199 | return retval; | |
200 | } | |
201 | ||
202 | /* enable snooping */ | |
4309e568 | 203 | static inline void sparc_leon3_enable_snooping(void) |
5213a780 KE |
204 | { |
205 | __asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t" | |
206 | "set 0x800000, %%l2\n\t" | |
207 | "or %%l2, %%l1, %%l2\n\t" | |
208 | "sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2"); | |
209 | }; | |
210 | ||
4309e568 KG |
211 | static inline int sparc_leon3_snooping_enabled(void) |
212 | { | |
213 | u32 cctrl; | |
214 | __asm__ __volatile__("lda [%%g0] 2, %0\n\t" : "=r"(cctrl)); | |
215 | return (cctrl >> 23) & 1; | |
216 | }; | |
217 | ||
218 | static inline void sparc_leon3_disable_cache(void) | |
5213a780 KE |
219 | { |
220 | __asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t" | |
221 | "set 0x00000f, %%l2\n\t" | |
222 | "andn %%l2, %%l1, %%l2\n\t" | |
223 | "sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2"); | |
224 | }; | |
225 | ||
e2305e37 DH |
226 | static inline unsigned long sparc_leon3_asr17(void) |
227 | { | |
228 | u32 asr17; | |
229 | __asm__ __volatile__ ("rd %%asr17, %0\n\t" : "=r"(asr17)); | |
230 | return asr17; | |
231 | }; | |
232 | ||
233 | static inline int sparc_leon3_cpuid(void) | |
234 | { | |
235 | return sparc_leon3_asr17() >> 28; | |
236 | } | |
237 | ||
5213a780 KE |
238 | #endif /*!__ASSEMBLY__*/ |
239 | ||
240 | #ifdef CONFIG_SMP | |
241 | # define LEON3_IRQ_RESCHEDULE 13 | |
242 | # define LEON3_IRQ_TICKER (leon_percpu_timer_dev[0].irq) | |
243 | # define LEON3_IRQ_CROSS_CALL 15 | |
244 | #endif | |
245 | ||
246 | #if defined(PAGE_SIZE_LEON_8K) | |
247 | #define LEON_PAGE_SIZE_LEON 1 | |
248 | #elif defined(PAGE_SIZE_LEON_16K) | |
249 | #define LEON_PAGE_SIZE_LEON 2) | |
250 | #else | |
251 | #define LEON_PAGE_SIZE_LEON 0 | |
252 | #endif | |
253 | ||
254 | #if LEON_PAGE_SIZE_LEON == 0 | |
255 | /* [ 8, 6, 6 ] + 12 */ | |
256 | #define LEON_PGD_SH 24 | |
257 | #define LEON_PGD_M 0xff | |
258 | #define LEON_PMD_SH 18 | |
259 | #define LEON_PMD_SH_V (LEON_PGD_SH-2) | |
260 | #define LEON_PMD_M 0x3f | |
261 | #define LEON_PTE_SH 12 | |
262 | #define LEON_PTE_M 0x3f | |
263 | #elif LEON_PAGE_SIZE_LEON == 1 | |
264 | /* [ 7, 6, 6 ] + 13 */ | |
265 | #define LEON_PGD_SH 25 | |
266 | #define LEON_PGD_M 0x7f | |
267 | #define LEON_PMD_SH 19 | |
268 | #define LEON_PMD_SH_V (LEON_PGD_SH-1) | |
269 | #define LEON_PMD_M 0x3f | |
270 | #define LEON_PTE_SH 13 | |
271 | #define LEON_PTE_M 0x3f | |
272 | #elif LEON_PAGE_SIZE_LEON == 2 | |
273 | /* [ 6, 6, 6 ] + 14 */ | |
274 | #define LEON_PGD_SH 26 | |
275 | #define LEON_PGD_M 0x3f | |
276 | #define LEON_PMD_SH 20 | |
277 | #define LEON_PMD_SH_V (LEON_PGD_SH-0) | |
278 | #define LEON_PMD_M 0x3f | |
279 | #define LEON_PTE_SH 14 | |
280 | #define LEON_PTE_M 0x3f | |
281 | #elif LEON_PAGE_SIZE_LEON == 3 | |
282 | /* [ 4, 7, 6 ] + 15 */ | |
283 | #define LEON_PGD_SH 28 | |
284 | #define LEON_PGD_M 0x0f | |
285 | #define LEON_PMD_SH 21 | |
286 | #define LEON_PMD_SH_V (LEON_PGD_SH-0) | |
287 | #define LEON_PMD_M 0x7f | |
288 | #define LEON_PTE_SH 15 | |
289 | #define LEON_PTE_M 0x3f | |
290 | #else | |
291 | #error cannot determine LEON_PAGE_SIZE_LEON | |
292 | #endif | |
293 | ||
294 | #define PAGE_MIN_SHIFT (12) | |
295 | #define PAGE_MIN_SIZE (1UL << PAGE_MIN_SHIFT) | |
296 | ||
297 | #define LEON3_XCCR_SETS_MASK 0x07000000UL | |
298 | #define LEON3_XCCR_SSIZE_MASK 0x00f00000UL | |
299 | ||
300 | #define LEON2_CCR_DSETS_MASK 0x03000000UL | |
301 | #define LEON2_CFG_SSIZE_MASK 0x00007000UL | |
302 | ||
303 | #ifndef __ASSEMBLY__ | |
304 | extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr); | |
305 | extern void leon_flush_icache_all(void); | |
306 | extern void leon_flush_dcache_all(void); | |
307 | extern void leon_flush_cache_all(void); | |
308 | extern void leon_flush_tlb_all(void); | |
309 | extern int leon_flush_during_switch; | |
310 | extern int leon_flush_needed(void); | |
311 | ||
312 | struct vm_area_struct; | |
313 | extern void leon_flush_icache_all(void); | |
314 | extern void leon_flush_dcache_all(void); | |
315 | extern void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page); | |
316 | extern void leon_flush_cache_all(void); | |
317 | extern void leon_flush_tlb_all(void); | |
318 | extern int leon_flush_during_switch; | |
319 | extern int leon_flush_needed(void); | |
320 | extern void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page); | |
321 | ||
322 | /* struct that hold LEON3 cache configuration registers */ | |
323 | struct leon3_cacheregs { | |
324 | unsigned long ccr; /* 0x00 - Cache Control Register */ | |
325 | unsigned long iccr; /* 0x08 - Instruction Cache Configuration Register */ | |
326 | unsigned long dccr; /* 0x0c - Data Cache Configuration Register */ | |
327 | }; | |
328 | ||
329 | /* struct that hold LEON2 cache configuration register | |
330 | * & configuration register | |
331 | */ | |
332 | struct leon2_cacheregs { | |
333 | unsigned long ccr, cfg; | |
334 | }; | |
335 | ||
336 | #ifdef __KERNEL__ | |
337 | ||
338 | #include <linux/interrupt.h> | |
339 | ||
340 | struct device_node; | |
4c6773c3 DH |
341 | extern unsigned int leon_build_device_irq(unsigned int real_irq, |
342 | irq_flow_handler_t flow_handler, | |
343 | const char *name, int do_ack); | |
5213a780 KE |
344 | extern void leon_clear_clock_irq(void); |
345 | extern void leon_load_profile_irq(int cpu, unsigned int limit); | |
346 | extern void leon_init_timers(irq_handler_t counter_fn); | |
347 | extern void leon_clear_clock_irq(void); | |
348 | extern void leon_load_profile_irq(int cpu, unsigned int limit); | |
349 | extern void leon_trans_init(struct device_node *dp); | |
350 | extern void leon_node_init(struct device_node *dp, struct device_node ***nextp); | |
351 | extern void leon_init_IRQ(void); | |
352 | extern void leon_init(void); | |
353 | extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr); | |
354 | extern void init_leon(void); | |
355 | extern void poke_leonsparc(void); | |
356 | extern void leon3_getCacheRegs(struct leon3_cacheregs *regs); | |
357 | extern int leon_flush_needed(void); | |
358 | extern void leon_switch_mm(void); | |
359 | extern int srmmu_swprobe_trace; | |
360 | ||
8401707f KE |
361 | #ifdef CONFIG_SMP |
362 | extern int leon_smp_nrcpus(void); | |
363 | extern void leon_clear_profile_irq(int cpu); | |
364 | extern void leon_smp_done(void); | |
365 | extern void leon_boot_cpus(void); | |
366 | extern int leon_boot_one_cpu(int i); | |
367 | void leon_init_smp(void); | |
368 | extern void cpu_probe(void); | |
369 | extern void cpu_idle(void); | |
370 | extern void init_IRQ(void); | |
371 | extern void cpu_panic(void); | |
372 | extern int __leon_processor_id(void); | |
373 | void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu); | |
374 | ||
375 | extern unsigned int real_irq_entry[], smpleon_ticker[]; | |
376 | extern unsigned int patchme_maybe_smp_msg[]; | |
8401707f KE |
377 | extern unsigned int t_nmi[], linux_trap_ipi15_leon[]; |
378 | extern unsigned int linux_trap_ipi15_sun4m[]; | |
379 | ||
380 | #endif /* CONFIG_SMP */ | |
381 | ||
5213a780 KE |
382 | #endif /* __KERNEL__ */ |
383 | ||
384 | #endif /* __ASSEMBLY__ */ | |
385 | ||
386 | /* macros used in leon_mm.c */ | |
387 | #define PFN(x) ((x) >> PAGE_SHIFT) | |
388 | #define _pfn_valid(pfn) ((pfn < last_valid_pfn) && (pfn >= PFN(phys_base))) | |
389 | #define _SRMMU_PTE_PMASK_LEON 0xffffffff | |
390 | ||
391 | #else /* defined(CONFIG_SPARC_LEON) */ | |
392 | ||
393 | /* nop definitions for !LEON case */ | |
394 | #define leon_init() do {} while (0) | |
395 | #define leon_switch_mm() do {} while (0) | |
396 | #define leon_init_IRQ() do {} while (0) | |
397 | #define init_leon() do {} while (0) | |
8401707f KE |
398 | #define leon_smp_done() do {} while (0) |
399 | #define leon_boot_cpus() do {} while (0) | |
400 | #define leon_boot_one_cpu(i) 1 | |
401 | #define leon_init_smp() do {} while (0) | |
5213a780 KE |
402 | |
403 | #endif /* !defined(CONFIG_SPARC_LEON) */ | |
404 | ||
405 | #endif |