1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
|
/*
* Copyright (C) 2004 Konrad Eisele (eiselekd@web.de,konrad@gaisler.com) Gaisler Research
* Copyright (C) 2004 Stefan Holst (mail@s-holst.de) Uni-Stuttgart
* Copyright (C) 2009 Daniel Hellstrom (daniel@gaisler.com) Aeroflex Gaisler AB
* Copyright (C) 2009 Konrad Eisele (konrad@gaisler.com) Aeroflex Gaisler AB
*/
#ifndef LEON_H_INCLUDE
#define LEON_H_INCLUDE
/* mmu register access, ASI_LEON_MMUREGS */
#define LEON_CNR_CTRL 0x000
#define LEON_CNR_CTXP 0x100
#define LEON_CNR_CTX 0x200
#define LEON_CNR_F 0x300
#define LEON_CNR_FADDR 0x400
#define LEON_CNR_CTX_NCTX 256 /*number of MMU ctx */
#define LEON_CNR_CTRL_TLBDIS 0x80000000
#define LEON_MMUTLB_ENT_MAX 64
/*
* diagnostic access from mmutlb.vhd:
* 0: pte address
* 4: pte
* 8: additional flags
*/
#define LEON_DIAGF_LVL 0x3
#define LEON_DIAGF_WR 0x8
#define LEON_DIAGF_WR_SHIFT 3
#define LEON_DIAGF_HIT 0x10
#define LEON_DIAGF_HIT_SHIFT 4
#define LEON_DIAGF_CTX 0x1fe0
#define LEON_DIAGF_CTX_SHIFT 5
#define LEON_DIAGF_VALID 0x2000
#define LEON_DIAGF_VALID_SHIFT 13
/* irq masks */
#define LEON_HARD_INT(x) (1 << (x)) /* irq 0-15 */
#define LEON_IRQMASK_R 0x0000fffe /* bit 15- 1 of lregs.irqmask */
#define LEON_IRQPRIO_R 0xfffe0000 /* bit 31-17 of lregs.irqmask */
#define LEON_MCFG2_SRAMDIS 0x00002000
#define LEON_MCFG2_SDRAMEN 0x00004000
#define LEON_MCFG2_SRAMBANKSZ 0x00001e00 /* [12-9] */
#define LEON_MCFG2_SRAMBANKSZ_SHIFT 9
#define LEON_MCFG2_SDRAMBANKSZ 0x03800000 /* [25-23] */
#define LEON_MCFG2_SDRAMBANKSZ_SHIFT 23
#define LEON_TCNT0_MASK 0x7fffff
#define ASI_LEON3_SYSCTRL 0x02
#define ASI_LEON3_SYSCTRL_ICFG 0x08
#define ASI_LEON3_SYSCTRL_DCFG 0x0c
#define ASI_LEON3_SYSCTRL_CFG_SNOOPING (1 << 27)
#define ASI_LEON3_SYSCTRL_CFG_SSIZE(c) (1 << ((c >> 20) & 0xf))
#ifndef __ASSEMBLY__
/* do a physical address bypass write, i.e. for 0x80000000 */
static inline void leon_store_reg(unsigned long paddr, unsigned long value)
{
__asm__ __volatile__("sta %0, [%1] %2\n\t" : : "r"(value), "r"(paddr),
"i"(ASI_LEON_BYPASS) : "memory");
}
/* do a physical address bypass load, i.e. for 0x80000000 */
static inline unsigned long leon_load_reg(unsigned long paddr)
{
unsigned long retval;
__asm__ __volatile__("lda [%1] %2, %0\n\t" :
"=r"(retval) : "r"(paddr), "i"(ASI_LEON_BYPASS));
return retval;
}
/* macro access for leon_load_reg() and leon_store_reg() */
#define LEON3_BYPASS_LOAD_PA(x) (leon_load_reg((unsigned long)(x)))
#define LEON3_BYPASS_STORE_PA(x, v) (leon_store_reg((unsigned long)(x), (unsigned long)(v)))
#define LEON_BYPASS_LOAD_PA(x) leon_load_reg((unsigned long)(x))
#define LEON_BYPASS_STORE_PA(x, v) leon_store_reg((unsigned long)(x), (unsigned long)(v))
extern void leon_switch_mm(void);
extern void leon_init_IRQ(void);
static inline unsigned long sparc_leon3_get_dcachecfg(void)
{
unsigned int retval;
__asm__ __volatile__("lda [%1] %2, %0\n\t" :
"=r"(retval) :
"r"(ASI_LEON3_SYSCTRL_DCFG),
"i"(ASI_LEON3_SYSCTRL));
return retval;
}
/* enable snooping */
static inline void sparc_leon3_enable_snooping(void)
{
__asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
"set 0x800000, %%l2\n\t"
"or %%l2, %%l1, %%l2\n\t"
"sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
};
static inline int sparc_leon3_snooping_enabled(void)
{
u32 cctrl;
__asm__ __volatile__("lda [%%g0] 2, %0\n\t" : "=r"(cctrl));
return (cctrl >> 23) & 1;
};
static inline void sparc_leon3_disable_cache(void)
{
__asm__ __volatile__ ("lda [%%g0] 2, %%l1\n\t"
"set 0x00000f, %%l2\n\t"
"andn %%l2, %%l1, %%l2\n\t"
"sta %%l2, [%%g0] 2\n\t" : : : "l1", "l2");
};
static inline unsigned long sparc_leon3_asr17(void)
{
u32 asr17;
__asm__ __volatile__ ("rd %%asr17, %0\n\t" : "=r"(asr17));
return asr17;
};
static inline int sparc_leon3_cpuid(void)
{
return sparc_leon3_asr17() >> 28;
}
#endif /*!__ASSEMBLY__*/
#ifdef CONFIG_SMP
# define LEON3_IRQ_IPI_DEFAULT 13
# define LEON3_IRQ_TICKER (leon3_ticker_irq)
# define LEON3_IRQ_CROSS_CALL 15
#endif
#if defined(PAGE_SIZE_LEON_8K)
#define LEON_PAGE_SIZE_LEON 1
#elif defined(PAGE_SIZE_LEON_16K)
#define LEON_PAGE_SIZE_LEON 2)
#else
#define LEON_PAGE_SIZE_LEON 0
#endif
#if LEON_PAGE_SIZE_LEON == 0
/* [ 8, 6, 6 ] + 12 */
#define LEON_PGD_SH 24
#define LEON_PGD_M 0xff
#define LEON_PMD_SH 18
#define LEON_PMD_SH_V (LEON_PGD_SH-2)
#define LEON_PMD_M 0x3f
#define LEON_PTE_SH 12
#define LEON_PTE_M 0x3f
#elif LEON_PAGE_SIZE_LEON == 1
/* [ 7, 6, 6 ] + 13 */
#define LEON_PGD_SH 25
#define LEON_PGD_M 0x7f
#define LEON_PMD_SH 19
#define LEON_PMD_SH_V (LEON_PGD_SH-1)
#define LEON_PMD_M 0x3f
#define LEON_PTE_SH 13
#define LEON_PTE_M 0x3f
#elif LEON_PAGE_SIZE_LEON == 2
/* [ 6, 6, 6 ] + 14 */
#define LEON_PGD_SH 26
#define LEON_PGD_M 0x3f
#define LEON_PMD_SH 20
#define LEON_PMD_SH_V (LEON_PGD_SH-0)
#define LEON_PMD_M 0x3f
#define LEON_PTE_SH 14
#define LEON_PTE_M 0x3f
#elif LEON_PAGE_SIZE_LEON == 3
/* [ 4, 7, 6 ] + 15 */
#define LEON_PGD_SH 28
#define LEON_PGD_M 0x0f
#define LEON_PMD_SH 21
#define LEON_PMD_SH_V (LEON_PGD_SH-0)
#define LEON_PMD_M 0x7f
#define LEON_PTE_SH 15
#define LEON_PTE_M 0x3f
#else
#error cannot determine LEON_PAGE_SIZE_LEON
#endif
#define LEON3_XCCR_SETS_MASK 0x07000000UL
#define LEON3_XCCR_SSIZE_MASK 0x00f00000UL
#define LEON2_CCR_DSETS_MASK 0x03000000UL
#define LEON2_CFG_SSIZE_MASK 0x00007000UL
#ifndef __ASSEMBLY__
struct vm_area_struct;
extern unsigned long leon_swprobe(unsigned long vaddr, unsigned long *paddr);
extern void leon_flush_icache_all(void);
extern void leon_flush_dcache_all(void);
extern void leon_flush_cache_all(void);
extern void leon_flush_tlb_all(void);
extern int leon_flush_during_switch;
extern int leon_flush_needed(void);
extern void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page);
/* struct that hold LEON3 cache configuration registers */
struct leon3_cacheregs {
unsigned long ccr; /* 0x00 - Cache Control Register */
unsigned long iccr; /* 0x08 - Instruction Cache Configuration Register */
unsigned long dccr; /* 0x0c - Data Cache Configuration Register */
};
#include <linux/irq.h>
#include <linux/interrupt.h>
struct device_node;
struct task_struct;
extern unsigned int leon_build_device_irq(unsigned int real_irq,
irq_flow_handler_t flow_handler,
const char *name, int do_ack);
extern void leon_update_virq_handling(unsigned int virq,
irq_flow_handler_t flow_handler,
const char *name, int do_ack);
extern void leon_init_timers(void);
extern void leon_trans_init(struct device_node *dp);
extern void leon_node_init(struct device_node *dp, struct device_node ***nextp);
extern void init_leon(void);
extern void poke_leonsparc(void);
extern void leon3_getCacheRegs(struct leon3_cacheregs *regs);
extern int leon3_ticker_irq;
#ifdef CONFIG_SMP
extern int leon_smp_nrcpus(void);
extern void leon_clear_profile_irq(int cpu);
extern void leon_smp_done(void);
extern void leon_boot_cpus(void);
extern int leon_boot_one_cpu(int i, struct task_struct *);
void leon_init_smp(void);
void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu);
extern irqreturn_t leon_percpu_timer_interrupt(int irq, void *unused);
extern unsigned int smpleon_ipi[];
extern unsigned int linux_trap_ipi15_leon[];
extern int leon_ipi_irq;
#endif /* CONFIG_SMP */
#endif /* __ASSEMBLY__ */
/* macros used in leon_mm.c */
#define PFN(x) ((x) >> PAGE_SHIFT)
#define _pfn_valid(pfn) ((pfn < last_valid_pfn) && (pfn >= PFN(phys_base)))
#define _SRMMU_PTE_PMASK_LEON 0xffffffff
#endif
|
