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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/* irq masks */
56#define LEON_HARD_INT(x) (1 << (x)) /* irq 0-15 */
57#define LEON_IRQMASK_R 0x0000fffe /* bit 15- 1 of lregs.irqmask */
58#define LEON_IRQPRIO_R 0xfffe0000 /* bit 31-17 of lregs.irqmask */
59
60/* leon uart register definitions */
61#define LEON_OFF_UDATA 0x0
62#define LEON_OFF_USTAT 0x4
63#define LEON_OFF_UCTRL 0x8
64#define LEON_OFF_USCAL 0xc
65
66#define LEON_UCTRL_RE 0x01
67#define LEON_UCTRL_TE 0x02
68#define LEON_UCTRL_RI 0x04
69#define LEON_UCTRL_TI 0x08
70#define LEON_UCTRL_PS 0x10
71#define LEON_UCTRL_PE 0x20
72#define LEON_UCTRL_FL 0x40
73#define LEON_UCTRL_LB 0x80
74
75#define LEON_USTAT_DR 0x01
76#define LEON_USTAT_TS 0x02
77#define LEON_USTAT_TH 0x04
78#define LEON_USTAT_BR 0x08
79#define LEON_USTAT_OV 0x10
80#define LEON_USTAT_PE 0x20
81#define LEON_USTAT_FE 0x40
82
83#define LEON_MCFG2_SRAMDIS 0x00002000
84#define LEON_MCFG2_SDRAMEN 0x00004000
85#define LEON_MCFG2_SRAMBANKSZ 0x00001e00 /* [12-9] */
86#define LEON_MCFG2_SRAMBANKSZ_SHIFT 9
87#define LEON_MCFG2_SDRAMBANKSZ 0x03800000 /* [25-23] */
88#define LEON_MCFG2_SDRAMBANKSZ_SHIFT 23
89
90#define LEON_TCNT0_MASK 0x7fffff
91
92#define LEON_USTAT_ERROR (LEON_USTAT_OV | LEON_USTAT_PE | LEON_USTAT_FE)
93/* no break yet */
94
95#define ASI_LEON3_SYSCTRL 0x02
96#define ASI_LEON3_SYSCTRL_ICFG 0x08
97#define ASI_LEON3_SYSCTRL_DCFG 0x0c
98#define ASI_LEON3_SYSCTRL_CFG_SNOOPING (1 << 27)
99#define ASI_LEON3_SYSCTRL_CFG_SSIZE(c) (1 << ((c >> 20) & 0xf))
100
101#ifndef __ASSEMBLY__
102
103/* do a virtual address read without cache */
104static inline unsigned long leon_readnobuffer_reg(unsigned long paddr)
105{
106 unsigned long retval;
107 __asm__ __volatile__("lda [%1] %2, %0\n\t" :
108 "=r"(retval) : "r"(paddr), "i"(ASI_LEON_NOCACHE));
109 return retval;
110}
111
112/* do a physical address bypass write, i.e. for 0x80000000 */
113static inline void leon_store_reg(unsigned long paddr, unsigned long value)
114{
115 __asm__ __volatile__("sta %0, [%1] %2\n\t" : : "r"(value), "r"(paddr),
116 "i"(ASI_LEON_BYPASS) : "memory");
117}
118
119/* do a physical address bypass load, i.e. for 0x80000000 */
120static inline unsigned long leon_load_reg(unsigned long paddr)
121{
122 unsigned long retval;
123 __asm__ __volatile__("lda [%1] %2, %0\n\t" :
124 "=r"(retval) : "r"(paddr), "i"(ASI_LEON_BYPASS));
125 return retval;
126}
127
128static inline void leon_srmmu_disabletlb(void)
129{
130 unsigned int retval;
131 __asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0),
132 "i"(ASI_LEON_MMUREGS));
133 retval |= LEON_CNR_CTRL_TLBDIS;
134 __asm__ __volatile__("sta %0, [%%g0] %2\n\t" : : "r"(retval), "r"(0),
135 "i"(ASI_LEON_MMUREGS) : "memory");
136}
137
138static inline void leon_srmmu_enabletlb(void)
139{
140 unsigned int retval;
141 __asm__ __volatile__("lda [%%g0] %2, %0\n\t" : "=r"(retval) : "r"(0),
142 "i"(ASI_LEON_MMUREGS));
143 retval = retval & ~LEON_CNR_CTRL_TLBDIS;
144 __asm__ __volatile__("sta %0, [%%g0] %2\n\t" : : "r"(retval), "r"(0),
145 "i"(ASI_LEON_MMUREGS) : "memory");
146}
147
148/* macro access for leon_load_reg() and leon_store_reg() */
149#define LEON3_BYPASS_LOAD_PA(x) (leon_load_reg((unsigned long)(x)))
150#define LEON3_BYPASS_STORE_PA(x, v) (leon_store_reg((unsigned long)(x), (unsigned long)(v)))
151#define LEON3_BYPASS_ANDIN_PA(x, v) LEON3_BYPASS_STORE_PA(x, LEON3_BYPASS_LOAD_PA(x) & v)
152#define LEON3_BYPASS_ORIN_PA(x, v) LEON3_BYPASS_STORE_PA(x, LEON3_BYPASS_LOAD_PA(x) | v)
153#define LEON_BYPASS_LOAD_PA(x) leon_load_reg((unsigned long)(x))
154#define LEON_BYPASS_STORE_PA(x, v) leon_store_reg((unsigned long)(x), (unsigned long)(v))
155#define LEON_REGLOAD_PA(x) leon_load_reg((unsigned long)(x)+LEON_PREGS)
156#define LEON_REGSTORE_PA(x, v) leon_store_reg((unsigned long)(x)+LEON_PREGS, (unsigned long)(v))
157#define LEON_REGSTORE_OR_PA(x, v) LEON_REGSTORE_PA(x, LEON_REGLOAD_PA(x) | (unsigned long)(v))
158#define LEON_REGSTORE_AND_PA(x, v) LEON_REGSTORE_PA(x, LEON_REGLOAD_PA(x) & (unsigned long)(v))
159
160/* macro access for leon_readnobuffer_reg() */
161#define LEON_BYPASSCACHE_LOAD_VA(x) leon_readnobuffer_reg((unsigned long)(x))
162
163extern void leon_init(void);
164extern void leon_switch_mm(void);
165extern void leon_init_IRQ(void);
166
167extern unsigned long last_valid_pfn;
168
169static inline unsigned long sparc_leon3_get_dcachecfg(void)
170{
171 unsigned int retval;
172 __asm__ __volatile__("lda [%1] %2, %0\n\t" :
173 "=r"(retval) :
174 "r"(ASI_LEON3_SYSCTRL_DCFG),
175 "i"(ASI_LEON3_SYSCTRL));
176 return retval;
177}
178
179/* enable snooping */
180static inline void sparc_leon3_enable_snooping(void)
181{
182 __asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
183 "set 0x800000, %%l2\n\t"
184 "or %%l2, %%l1, %%l2\n\t"
185 "sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
186};
187
188static inline int sparc_leon3_snooping_enabled(void)
189{
190 u32 cctrl;
191 __asm__ __volatile__("lda [%%g0] 2, %0\n\t" : "=r"(cctrl));
192 return (cctrl >> 23) & 1;
193};
194
195static inline void sparc_leon3_disable_cache(void)
196{
197 __asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
198 "set 0x00000f, %%l2\n\t"
199 "andn %%l2, %%l1, %%l2\n\t"
200 "sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
201};
202
203static inline unsigned long sparc_leon3_asr17(void)
204{
205 u32 asr17;
206 __asm__ __volatile__ ("rd %%asr17, %0\n\t" : "=r"(asr17));
207 return asr17;
208};
209
210static inline int sparc_leon3_cpuid(void)
211{
212 return sparc_leon3_asr17() >> 28;
213}
214
215#endif /*!__ASSEMBLY__*/
216
217#ifdef CONFIG_SMP
218# define LEON3_IRQ_IPI_DEFAULT 13
219# define LEON3_IRQ_TICKER (leon3_ticker_irq)
220# define LEON3_IRQ_CROSS_CALL 15
221#endif
222
223#if defined(PAGE_SIZE_LEON_8K)
224#define LEON_PAGE_SIZE_LEON 1
225#elif defined(PAGE_SIZE_LEON_16K)
226#define LEON_PAGE_SIZE_LEON 2)
227#else
228#define LEON_PAGE_SIZE_LEON 0
229#endif
230
231#if LEON_PAGE_SIZE_LEON == 0
232/* [ 8, 6, 6 ] + 12 */
233#define LEON_PGD_SH 24
234#define LEON_PGD_M 0xff
235#define LEON_PMD_SH 18
236#define LEON_PMD_SH_V (LEON_PGD_SH-2)
237#define LEON_PMD_M 0x3f
238#define LEON_PTE_SH 12
239#define LEON_PTE_M 0x3f
240#elif LEON_PAGE_SIZE_LEON == 1
241/* [ 7, 6, 6 ] + 13 */
242#define LEON_PGD_SH 25
243#define LEON_PGD_M 0x7f
244#define LEON_PMD_SH 19
245#define LEON_PMD_SH_V (LEON_PGD_SH-1)
246#define LEON_PMD_M 0x3f
247#define LEON_PTE_SH 13
248#define LEON_PTE_M 0x3f
249#elif LEON_PAGE_SIZE_LEON == 2
250/* [ 6, 6, 6 ] + 14 */
251#define LEON_PGD_SH 26
252#define LEON_PGD_M 0x3f
253#define LEON_PMD_SH 20
254#define LEON_PMD_SH_V (LEON_PGD_SH-0)
255#define LEON_PMD_M 0x3f
256#define LEON_PTE_SH 14
257#define LEON_PTE_M 0x3f
258#elif LEON_PAGE_SIZE_LEON == 3
259/* [ 4, 7, 6 ] + 15 */
260#define LEON_PGD_SH 28
261#define LEON_PGD_M 0x0f
262#define LEON_PMD_SH 21
263#define LEON_PMD_SH_V (LEON_PGD_SH-0)
264#define LEON_PMD_M 0x7f
265#define LEON_PTE_SH 15
266#define LEON_PTE_M 0x3f
267#else
268#error cannot determine LEON_PAGE_SIZE_LEON
269#endif
270
271#define PAGE_MIN_SHIFT (12)
272#define PAGE_MIN_SIZE (1UL << PAGE_MIN_SHIFT)
273
274#define LEON3_XCCR_SETS_MASK 0x07000000UL
275#define LEON3_XCCR_SSIZE_MASK 0x00f00000UL
276
277#define LEON2_CCR_DSETS_MASK 0x03000000UL
278#define LEON2_CFG_SSIZE_MASK 0x00007000UL
279
280#ifndef __ASSEMBLY__
281extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr);
282extern void leon_flush_icache_all(void);
283extern void leon_flush_dcache_all(void);
284extern void leon_flush_cache_all(void);
285extern void leon_flush_tlb_all(void);
286extern int leon_flush_during_switch;
287extern int leon_flush_needed(void);
288
289struct vm_area_struct;
290extern void leon_flush_icache_all(void);
291extern void leon_flush_dcache_all(void);
292extern void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page);
293extern void leon_flush_cache_all(void);
294extern void leon_flush_tlb_all(void);
295extern int leon_flush_during_switch;
296extern int leon_flush_needed(void);
297extern void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page);
298
299/* struct that hold LEON3 cache configuration registers */
300struct leon3_cacheregs {
301 unsigned long ccr; /* 0x00 - Cache Control Register */
302 unsigned long iccr; /* 0x08 - Instruction Cache Configuration Register */
303 unsigned long dccr; /* 0x0c - Data Cache Configuration Register */
304};
305
306/* struct that hold LEON2 cache configuration register
307 * & configuration register
308 */
309struct leon2_cacheregs {
310 unsigned long ccr, cfg;
311};
312
313#ifdef __KERNEL__
314
315#include <linux/interrupt.h>
316
317struct device_node;
318extern unsigned int leon_build_device_irq(unsigned int real_irq,
319 irq_flow_handler_t flow_handler,
320 const char *name, int do_ack);
321extern void leon_update_virq_handling(unsigned int virq,
322 irq_flow_handler_t flow_handler,
323 const char *name, int do_ack);
324extern void leon_clear_clock_irq(void);
325extern void leon_load_profile_irq(int cpu, unsigned int limit);
326extern void leon_init_timers(irq_handler_t counter_fn);
327extern void leon_clear_clock_irq(void);
328extern void leon_load_profile_irq(int cpu, unsigned int limit);
329extern void leon_trans_init(struct device_node *dp);
330extern void leon_node_init(struct device_node *dp, struct device_node ***nextp);
331extern void leon_init_IRQ(void);
332extern void leon_init(void);
333extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr);
334extern void init_leon(void);
335extern void poke_leonsparc(void);
336extern void leon3_getCacheRegs(struct leon3_cacheregs *regs);
337extern int leon_flush_needed(void);
338extern void leon_switch_mm(void);
339extern int srmmu_swprobe_trace;
340extern int leon3_ticker_irq;
341
342#ifdef CONFIG_SMP
343extern int leon_smp_nrcpus(void);
344extern void leon_clear_profile_irq(int cpu);
345extern void leon_smp_done(void);
346extern void leon_boot_cpus(void);
347extern int leon_boot_one_cpu(int i);
348void leon_init_smp(void);
349extern void cpu_idle(void);
350extern void init_IRQ(void);
351extern void cpu_panic(void);
352extern int __leon_processor_id(void);
353void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu);
354extern irqreturn_t leon_percpu_timer_interrupt(int irq, void *unused);
355
356extern unsigned int real_irq_entry[];
357extern unsigned int smpleon_ipi[];
358extern unsigned int patchme_maybe_smp_msg[];
359extern unsigned int t_nmi[], linux_trap_ipi15_leon[];
360extern unsigned int linux_trap_ipi15_sun4m[];
361extern int leon_ipi_irq;
362
363#endif /* CONFIG_SMP */
364
365#endif /* __KERNEL__ */
366
367#endif /* __ASSEMBLY__ */
368
369/* macros used in leon_mm.c */
370#define PFN(x) ((x) >> PAGE_SHIFT)
371#define _pfn_valid(pfn) ((pfn < last_valid_pfn) && (pfn >= PFN(phys_base)))
372#define _SRMMU_PTE_PMASK_LEON 0xffffffff
373
374#else /* defined(CONFIG_SPARC_LEON) */
375
376/* nop definitions for !LEON case */
377#define leon_init() do {} while (0)
378#define leon_switch_mm() do {} while (0)
379#define leon_init_IRQ() do {} while (0)
380#define init_leon() do {} while (0)
381#define leon_smp_done() do {} while (0)
382#define leon_boot_cpus() do {} while (0)
383#define leon_boot_one_cpu(i) 1
384#define leon_init_smp() do {} while (0)
385
386#endif /* !defined(CONFIG_SPARC_LEON) */
387
388#endif
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/* mmu register access, ASI_LEON_MMUREGS */
12#define LEON_CNR_CTRL 0x000
13#define LEON_CNR_CTXP 0x100
14#define LEON_CNR_CTX 0x200
15#define LEON_CNR_F 0x300
16#define LEON_CNR_FADDR 0x400
17
18#define LEON_CNR_CTX_NCTX 256 /*number of MMU ctx */
19
20#define LEON_CNR_CTRL_TLBDIS 0x80000000
21
22#define LEON_MMUTLB_ENT_MAX 64
23
24/*
25 * diagnostic access from mmutlb.vhd:
26 * 0: pte address
27 * 4: pte
28 * 8: additional flags
29 */
30#define LEON_DIAGF_LVL 0x3
31#define LEON_DIAGF_WR 0x8
32#define LEON_DIAGF_WR_SHIFT 3
33#define LEON_DIAGF_HIT 0x10
34#define LEON_DIAGF_HIT_SHIFT 4
35#define LEON_DIAGF_CTX 0x1fe0
36#define LEON_DIAGF_CTX_SHIFT 5
37#define LEON_DIAGF_VALID 0x2000
38#define LEON_DIAGF_VALID_SHIFT 13
39
40/* irq masks */
41#define LEON_HARD_INT(x) (1 << (x)) /* irq 0-15 */
42#define LEON_IRQMASK_R 0x0000fffe /* bit 15- 1 of lregs.irqmask */
43#define LEON_IRQPRIO_R 0xfffe0000 /* bit 31-17 of lregs.irqmask */
44
45#define LEON_MCFG2_SRAMDIS 0x00002000
46#define LEON_MCFG2_SDRAMEN 0x00004000
47#define LEON_MCFG2_SRAMBANKSZ 0x00001e00 /* [12-9] */
48#define LEON_MCFG2_SRAMBANKSZ_SHIFT 9
49#define LEON_MCFG2_SDRAMBANKSZ 0x03800000 /* [25-23] */
50#define LEON_MCFG2_SDRAMBANKSZ_SHIFT 23
51
52#define LEON_TCNT0_MASK 0x7fffff
53
54
55#define ASI_LEON3_SYSCTRL 0x02
56#define ASI_LEON3_SYSCTRL_ICFG 0x08
57#define ASI_LEON3_SYSCTRL_DCFG 0x0c
58#define ASI_LEON3_SYSCTRL_CFG_SNOOPING (1 << 27)
59#define ASI_LEON3_SYSCTRL_CFG_SSIZE(c) (1 << ((c >> 20) & 0xf))
60
61#ifndef __ASSEMBLY__
62
63/* do a physical address bypass write, i.e. for 0x80000000 */
64static inline void leon_store_reg(unsigned long paddr, unsigned long value)
65{
66 __asm__ __volatile__("sta %0, [%1] %2\n\t" : : "r"(value), "r"(paddr),
67 "i"(ASI_LEON_BYPASS) : "memory");
68}
69
70/* do a physical address bypass load, i.e. for 0x80000000 */
71static inline unsigned long leon_load_reg(unsigned long paddr)
72{
73 unsigned long retval;
74 __asm__ __volatile__("lda [%1] %2, %0\n\t" :
75 "=r"(retval) : "r"(paddr), "i"(ASI_LEON_BYPASS));
76 return retval;
77}
78
79/* macro access for leon_load_reg() and leon_store_reg() */
80#define LEON3_BYPASS_LOAD_PA(x) (leon_load_reg((unsigned long)(x)))
81#define LEON3_BYPASS_STORE_PA(x, v) (leon_store_reg((unsigned long)(x), (unsigned long)(v)))
82#define LEON_BYPASS_LOAD_PA(x) leon_load_reg((unsigned long)(x))
83#define LEON_BYPASS_STORE_PA(x, v) leon_store_reg((unsigned long)(x), (unsigned long)(v))
84
85extern void leon_switch_mm(void);
86extern void leon_init_IRQ(void);
87
88static inline unsigned long sparc_leon3_get_dcachecfg(void)
89{
90 unsigned int retval;
91 __asm__ __volatile__("lda [%1] %2, %0\n\t" :
92 "=r"(retval) :
93 "r"(ASI_LEON3_SYSCTRL_DCFG),
94 "i"(ASI_LEON3_SYSCTRL));
95 return retval;
96}
97
98/* enable snooping */
99static inline void sparc_leon3_enable_snooping(void)
100{
101 __asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
102 "set 0x800000, %%l2\n\t"
103 "or %%l2, %%l1, %%l2\n\t"
104 "sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
105};
106
107static inline int sparc_leon3_snooping_enabled(void)
108{
109 u32 cctrl;
110 __asm__ __volatile__("lda [%%g0] 2, %0\n\t" : "=r"(cctrl));
111 return ((cctrl >> 23) & 1) && ((cctrl >> 17) & 1);
112};
113
114static inline void sparc_leon3_disable_cache(void)
115{
116 __asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
117 "set 0x00000f, %%l2\n\t"
118 "andn %%l2, %%l1, %%l2\n\t"
119 "sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
120};
121
122static inline unsigned long sparc_leon3_asr17(void)
123{
124 u32 asr17;
125 __asm__ __volatile__ ("rd %%asr17, %0\n\t" : "=r"(asr17));
126 return asr17;
127};
128
129static inline int sparc_leon3_cpuid(void)
130{
131 return sparc_leon3_asr17() >> 28;
132}
133
134#endif /*!__ASSEMBLY__*/
135
136#ifdef CONFIG_SMP
137# define LEON3_IRQ_IPI_DEFAULT 13
138# define LEON3_IRQ_TICKER (leon3_gptimer_irq)
139# define LEON3_IRQ_CROSS_CALL 15
140#endif
141
142#if defined(PAGE_SIZE_LEON_8K)
143#define LEON_PAGE_SIZE_LEON 1
144#elif defined(PAGE_SIZE_LEON_16K)
145#define LEON_PAGE_SIZE_LEON 2)
146#else
147#define LEON_PAGE_SIZE_LEON 0
148#endif
149
150#if LEON_PAGE_SIZE_LEON == 0
151/* [ 8, 6, 6 ] + 12 */
152#define LEON_PGD_SH 24
153#define LEON_PGD_M 0xff
154#define LEON_PMD_SH 18
155#define LEON_PMD_SH_V (LEON_PGD_SH-2)
156#define LEON_PMD_M 0x3f
157#define LEON_PTE_SH 12
158#define LEON_PTE_M 0x3f
159#elif LEON_PAGE_SIZE_LEON == 1
160/* [ 7, 6, 6 ] + 13 */
161#define LEON_PGD_SH 25
162#define LEON_PGD_M 0x7f
163#define LEON_PMD_SH 19
164#define LEON_PMD_SH_V (LEON_PGD_SH-1)
165#define LEON_PMD_M 0x3f
166#define LEON_PTE_SH 13
167#define LEON_PTE_M 0x3f
168#elif LEON_PAGE_SIZE_LEON == 2
169/* [ 6, 6, 6 ] + 14 */
170#define LEON_PGD_SH 26
171#define LEON_PGD_M 0x3f
172#define LEON_PMD_SH 20
173#define LEON_PMD_SH_V (LEON_PGD_SH-0)
174#define LEON_PMD_M 0x3f
175#define LEON_PTE_SH 14
176#define LEON_PTE_M 0x3f
177#elif LEON_PAGE_SIZE_LEON == 3
178/* [ 4, 7, 6 ] + 15 */
179#define LEON_PGD_SH 28
180#define LEON_PGD_M 0x0f
181#define LEON_PMD_SH 21
182#define LEON_PMD_SH_V (LEON_PGD_SH-0)
183#define LEON_PMD_M 0x7f
184#define LEON_PTE_SH 15
185#define LEON_PTE_M 0x3f
186#else
187#error cannot determine LEON_PAGE_SIZE_LEON
188#endif
189
190#define LEON3_XCCR_SETS_MASK 0x07000000UL
191#define LEON3_XCCR_SSIZE_MASK 0x00f00000UL
192
193#define LEON2_CCR_DSETS_MASK 0x03000000UL
194#define LEON2_CFG_SSIZE_MASK 0x00007000UL
195
196#ifndef __ASSEMBLY__
197struct vm_area_struct;
198
199extern unsigned long leon_swprobe(unsigned long vaddr, unsigned long *paddr);
200extern void leon_flush_icache_all(void);
201extern void leon_flush_dcache_all(void);
202extern void leon_flush_cache_all(void);
203extern void leon_flush_tlb_all(void);
204extern int leon_flush_during_switch;
205extern int leon_flush_needed(void);
206extern void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page);
207
208/* struct that hold LEON3 cache configuration registers */
209struct leon3_cacheregs {
210 unsigned long ccr; /* 0x00 - Cache Control Register */
211 unsigned long iccr; /* 0x08 - Instruction Cache Configuration Register */
212 unsigned long dccr; /* 0x0c - Data Cache Configuration Register */
213};
214
215#include <linux/irq.h>
216#include <linux/interrupt.h>
217
218struct device_node;
219struct task_struct;
220extern unsigned int leon_build_device_irq(unsigned int real_irq,
221 irq_flow_handler_t flow_handler,
222 const char *name, int do_ack);
223extern void leon_update_virq_handling(unsigned int virq,
224 irq_flow_handler_t flow_handler,
225 const char *name, int do_ack);
226extern void leon_init_timers(void);
227extern void leon_trans_init(struct device_node *dp);
228extern void leon_node_init(struct device_node *dp, struct device_node ***nextp);
229extern void init_leon(void);
230extern void poke_leonsparc(void);
231extern void leon3_getCacheRegs(struct leon3_cacheregs *regs);
232extern int leon3_ticker_irq;
233
234#ifdef CONFIG_SMP
235extern int leon_smp_nrcpus(void);
236extern void leon_clear_profile_irq(int cpu);
237extern void leon_smp_done(void);
238extern void leon_boot_cpus(void);
239extern int leon_boot_one_cpu(int i, struct task_struct *);
240void leon_init_smp(void);
241void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu);
242extern irqreturn_t leon_percpu_timer_interrupt(int irq, void *unused);
243
244extern unsigned int smpleon_ipi[];
245extern unsigned int linux_trap_ipi15_leon[];
246extern int leon_ipi_irq;
247
248#endif /* CONFIG_SMP */
249
250#endif /* __ASSEMBLY__ */
251
252/* macros used in leon_mm.c */
253#define PFN(x) ((x) >> PAGE_SHIFT)
254#define _pfn_valid(pfn) ((pfn < last_valid_pfn) && (pfn >= PFN(phys_base)))
255#define _SRMMU_PTE_PMASK_LEON 0xffffffff
256
257#endif