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5213a780 KE |
1 | /* |
2 | * Copyright (C) 2009 Daniel Hellstrom (daniel@gaisler.com) Aeroflex Gaisler AB | |
3 | * Copyright (C) 2009 Konrad Eisele (konrad@gaisler.com) Aeroflex Gaisler AB | |
4 | */ | |
5 | ||
6 | #include <linux/kernel.h> | |
5213a780 KE |
7 | #include <linux/errno.h> |
8 | #include <linux/mutex.h> | |
5213a780 KE |
9 | #include <linux/of.h> |
10 | #include <linux/of_platform.h> | |
11 | #include <linux/interrupt.h> | |
12 | #include <linux/of_device.h> | |
8401707f | 13 | |
5213a780 KE |
14 | #include <asm/oplib.h> |
15 | #include <asm/timer.h> | |
16 | #include <asm/prom.h> | |
17 | #include <asm/leon.h> | |
18 | #include <asm/leon_amba.h> | |
8401707f KE |
19 | #include <asm/traps.h> |
20 | #include <asm/cacheflush.h> | |
4c6773c3 | 21 | #include <asm/smp.h> |
01dae0f0 | 22 | #include <asm/setup.h> |
5213a780 KE |
23 | |
24 | #include "prom.h" | |
25 | #include "irq.h" | |
26 | ||
53aea7ca DH |
27 | struct leon3_irqctrl_regs_map *leon3_irqctrl_regs; /* interrupt controller base address */ |
28 | struct leon3_gptimer_regs_map *leon3_gptimer_regs; /* timer controller base address */ | |
5213a780 KE |
29 | |
30 | int leondebug_irq_disable; | |
31 | int leon_debug_irqout; | |
32 | static int dummy_master_l10_counter; | |
7279b82c | 33 | unsigned long amba_system_id; |
d61a38b2 | 34 | static DEFINE_SPINLOCK(leon_irq_lock); |
5213a780 | 35 | |
53aea7ca | 36 | unsigned long leon3_gptimer_irq; /* interrupt controller irq number */ |
2791c1a4 | 37 | unsigned long leon3_gptimer_idx; /* Timer Index (0..6) within Timer Core */ |
2cf95304 | 38 | int leon3_ticker_irq; /* Timer ticker IRQ */ |
5213a780 | 39 | unsigned int sparc_leon_eirq; |
a481b5d0 | 40 | #define LEON_IMASK(cpu) (&leon3_irqctrl_regs->mask[cpu]) |
4c6773c3 DH |
41 | #define LEON_IACK (&leon3_irqctrl_regs->iclear) |
42 | #define LEON_DO_ACK_HW 1 | |
5213a780 | 43 | |
4c6773c3 DH |
44 | /* Return the last ACKed IRQ by the Extended IRQ controller. It has already |
45 | * been (automatically) ACKed when the CPU takes the trap. | |
46 | */ | |
47 | static inline unsigned int leon_eirq_get(int cpu) | |
5213a780 KE |
48 | { |
49 | return LEON3_BYPASS_LOAD_PA(&leon3_irqctrl_regs->intid[cpu]) & 0x1f; | |
50 | } | |
51 | ||
4c6773c3 DH |
52 | /* Handle one or multiple IRQs from the extended interrupt controller */ |
53 | static void leon_handle_ext_irq(unsigned int irq, struct irq_desc *desc) | |
5213a780 | 54 | { |
4c6773c3 | 55 | unsigned int eirq; |
01dae0f0 | 56 | int cpu = sparc_leon3_cpuid(); |
4c6773c3 DH |
57 | |
58 | eirq = leon_eirq_get(cpu); | |
59 | if ((eirq & 0x10) && irq_map[eirq]->irq) /* bit4 tells if IRQ happened */ | |
60 | generic_handle_irq(irq_map[eirq]->irq); | |
5213a780 KE |
61 | } |
62 | ||
63 | /* The extended IRQ controller has been found, this function registers it */ | |
4c6773c3 | 64 | void leon_eirq_setup(unsigned int eirq) |
5213a780 | 65 | { |
4c6773c3 DH |
66 | unsigned long mask, oldmask; |
67 | unsigned int veirq; | |
5213a780 | 68 | |
4c6773c3 DH |
69 | if (eirq < 1 || eirq > 0xf) { |
70 | printk(KERN_ERR "LEON EXT IRQ NUMBER BAD: %d\n", eirq); | |
71 | return; | |
5213a780 KE |
72 | } |
73 | ||
4c6773c3 DH |
74 | veirq = leon_build_device_irq(eirq, leon_handle_ext_irq, "extirq", 0); |
75 | ||
76 | /* | |
77 | * Unmask the Extended IRQ, the IRQs routed through the Ext-IRQ | |
78 | * controller have a mask-bit of their own, so this is safe. | |
79 | */ | |
80 | irq_link(veirq); | |
81 | mask = 1 << eirq; | |
01dae0f0 DH |
82 | oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK(boot_cpu_id)); |
83 | LEON3_BYPASS_STORE_PA(LEON_IMASK(boot_cpu_id), (oldmask | mask)); | |
4c6773c3 | 84 | sparc_leon_eirq = eirq; |
5213a780 KE |
85 | } |
86 | ||
87 | static inline unsigned long get_irqmask(unsigned int irq) | |
88 | { | |
89 | unsigned long mask; | |
90 | ||
91 | if (!irq || ((irq > 0xf) && !sparc_leon_eirq) | |
92 | || ((irq > 0x1f) && sparc_leon_eirq)) { | |
93 | printk(KERN_ERR | |
94 | "leon_get_irqmask: false irq number: %d\n", irq); | |
95 | mask = 0; | |
96 | } else { | |
97 | mask = LEON_HARD_INT(irq); | |
98 | } | |
99 | return mask; | |
100 | } | |
101 | ||
5eb1f4fc DH |
102 | #ifdef CONFIG_SMP |
103 | static int irq_choose_cpu(const struct cpumask *affinity) | |
104 | { | |
105 | cpumask_t mask; | |
106 | ||
0b5f9c00 RR |
107 | cpumask_and(&mask, cpu_online_mask, affinity); |
108 | if (cpumask_equal(&mask, cpu_online_mask) || cpumask_empty(&mask)) | |
01dae0f0 | 109 | return boot_cpu_id; |
5eb1f4fc | 110 | else |
0b5f9c00 | 111 | return cpumask_first(&mask); |
5eb1f4fc DH |
112 | } |
113 | #else | |
01dae0f0 | 114 | #define irq_choose_cpu(affinity) boot_cpu_id |
5eb1f4fc DH |
115 | #endif |
116 | ||
117 | static int leon_set_affinity(struct irq_data *data, const struct cpumask *dest, | |
118 | bool force) | |
119 | { | |
120 | unsigned long mask, oldmask, flags; | |
121 | int oldcpu, newcpu; | |
122 | ||
123 | mask = (unsigned long)data->chip_data; | |
124 | oldcpu = irq_choose_cpu(data->affinity); | |
125 | newcpu = irq_choose_cpu(dest); | |
126 | ||
127 | if (oldcpu == newcpu) | |
128 | goto out; | |
129 | ||
130 | /* unmask on old CPU first before enabling on the selected CPU */ | |
131 | spin_lock_irqsave(&leon_irq_lock, flags); | |
132 | oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK(oldcpu)); | |
133 | LEON3_BYPASS_STORE_PA(LEON_IMASK(oldcpu), (oldmask & ~mask)); | |
134 | oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK(newcpu)); | |
135 | LEON3_BYPASS_STORE_PA(LEON_IMASK(newcpu), (oldmask | mask)); | |
136 | spin_unlock_irqrestore(&leon_irq_lock, flags); | |
137 | out: | |
138 | return IRQ_SET_MASK_OK; | |
139 | } | |
140 | ||
6baa9b20 | 141 | static void leon_unmask_irq(struct irq_data *data) |
5213a780 | 142 | { |
a481b5d0 | 143 | unsigned long mask, oldmask, flags; |
5eb1f4fc | 144 | int cpu; |
6baa9b20 SR |
145 | |
146 | mask = (unsigned long)data->chip_data; | |
5eb1f4fc | 147 | cpu = irq_choose_cpu(data->affinity); |
d61a38b2 | 148 | spin_lock_irqsave(&leon_irq_lock, flags); |
5eb1f4fc DH |
149 | oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK(cpu)); |
150 | LEON3_BYPASS_STORE_PA(LEON_IMASK(cpu), (oldmask | mask)); | |
d61a38b2 | 151 | spin_unlock_irqrestore(&leon_irq_lock, flags); |
5213a780 KE |
152 | } |
153 | ||
6baa9b20 | 154 | static void leon_mask_irq(struct irq_data *data) |
5213a780 | 155 | { |
a481b5d0 | 156 | unsigned long mask, oldmask, flags; |
5eb1f4fc | 157 | int cpu; |
6baa9b20 SR |
158 | |
159 | mask = (unsigned long)data->chip_data; | |
5eb1f4fc | 160 | cpu = irq_choose_cpu(data->affinity); |
d61a38b2 | 161 | spin_lock_irqsave(&leon_irq_lock, flags); |
5eb1f4fc DH |
162 | oldmask = LEON3_BYPASS_LOAD_PA(LEON_IMASK(cpu)); |
163 | LEON3_BYPASS_STORE_PA(LEON_IMASK(cpu), (oldmask & ~mask)); | |
d61a38b2 | 164 | spin_unlock_irqrestore(&leon_irq_lock, flags); |
5213a780 KE |
165 | } |
166 | ||
6baa9b20 SR |
167 | static unsigned int leon_startup_irq(struct irq_data *data) |
168 | { | |
169 | irq_link(data->irq); | |
170 | leon_unmask_irq(data); | |
171 | return 0; | |
172 | } | |
173 | ||
174 | static void leon_shutdown_irq(struct irq_data *data) | |
175 | { | |
176 | leon_mask_irq(data); | |
177 | irq_unlink(data->irq); | |
178 | } | |
179 | ||
4c6773c3 DH |
180 | /* Used by external level sensitive IRQ handlers on the LEON: ACK IRQ ctrl */ |
181 | static void leon_eoi_irq(struct irq_data *data) | |
182 | { | |
183 | unsigned long mask = (unsigned long)data->chip_data; | |
184 | ||
185 | if (mask & LEON_DO_ACK_HW) | |
186 | LEON3_BYPASS_STORE_PA(LEON_IACK, mask & ~LEON_DO_ACK_HW); | |
187 | } | |
188 | ||
6baa9b20 | 189 | static struct irq_chip leon_irq = { |
5eb1f4fc DH |
190 | .name = "leon", |
191 | .irq_startup = leon_startup_irq, | |
192 | .irq_shutdown = leon_shutdown_irq, | |
193 | .irq_mask = leon_mask_irq, | |
194 | .irq_unmask = leon_unmask_irq, | |
195 | .irq_eoi = leon_eoi_irq, | |
196 | .irq_set_affinity = leon_set_affinity, | |
6baa9b20 SR |
197 | }; |
198 | ||
4c6773c3 DH |
199 | /* |
200 | * Build a LEON IRQ for the edge triggered LEON IRQ controller: | |
201 | * Edge (normal) IRQ - handle_simple_irq, ack=DONT-CARE, never ack | |
202 | * Level IRQ (PCI|Level-GPIO) - handle_fasteoi_irq, ack=1, ack after ISR | |
203 | * Per-CPU Edge - handle_percpu_irq, ack=0 | |
204 | */ | |
205 | unsigned int leon_build_device_irq(unsigned int real_irq, | |
206 | irq_flow_handler_t flow_handler, | |
207 | const char *name, int do_ack) | |
6baa9b20 SR |
208 | { |
209 | unsigned int irq; | |
210 | unsigned long mask; | |
211 | ||
212 | irq = 0; | |
213 | mask = get_irqmask(real_irq); | |
214 | if (mask == 0) | |
215 | goto out; | |
216 | ||
217 | irq = irq_alloc(real_irq, real_irq); | |
218 | if (irq == 0) | |
219 | goto out; | |
220 | ||
4c6773c3 DH |
221 | if (do_ack) |
222 | mask |= LEON_DO_ACK_HW; | |
223 | ||
6baa9b20 | 224 | irq_set_chip_and_handler_name(irq, &leon_irq, |
4c6773c3 | 225 | flow_handler, name); |
6baa9b20 SR |
226 | irq_set_chip_data(irq, (void *)mask); |
227 | ||
228 | out: | |
229 | return irq; | |
230 | } | |
231 | ||
4c6773c3 DH |
232 | static unsigned int _leon_build_device_irq(struct platform_device *op, |
233 | unsigned int real_irq) | |
234 | { | |
235 | return leon_build_device_irq(real_irq, handle_simple_irq, "edge", 0); | |
236 | } | |
237 | ||
5d07b786 DH |
238 | void leon_update_virq_handling(unsigned int virq, |
239 | irq_flow_handler_t flow_handler, | |
240 | const char *name, int do_ack) | |
241 | { | |
242 | unsigned long mask = (unsigned long)irq_get_chip_data(virq); | |
243 | ||
244 | mask &= ~LEON_DO_ACK_HW; | |
245 | if (do_ack) | |
246 | mask |= LEON_DO_ACK_HW; | |
247 | ||
248 | irq_set_chip_and_handler_name(virq, &leon_irq, | |
249 | flow_handler, name); | |
250 | irq_set_chip_data(virq, (void *)mask); | |
251 | } | |
252 | ||
5213a780 KE |
253 | void __init leon_init_timers(irq_handler_t counter_fn) |
254 | { | |
4c6773c3 | 255 | int irq, eirq; |
2791c1a4 | 256 | struct device_node *rootnp, *np, *nnp; |
53aea7ca DH |
257 | struct property *pp; |
258 | int len; | |
01dae0f0 | 259 | int icsel; |
2791c1a4 | 260 | int ampopts; |
6baa9b20 | 261 | int err; |
5213a780 KE |
262 | |
263 | leondebug_irq_disable = 0; | |
264 | leon_debug_irqout = 0; | |
265 | master_l10_counter = (unsigned int *)&dummy_master_l10_counter; | |
266 | dummy_master_l10_counter = 0; | |
267 | ||
53aea7ca DH |
268 | rootnp = of_find_node_by_path("/ambapp0"); |
269 | if (!rootnp) | |
270 | goto bad; | |
7279b82c DH |
271 | |
272 | /* Find System ID: GRLIB build ID and optional CHIP ID */ | |
273 | pp = of_find_property(rootnp, "systemid", &len); | |
274 | if (pp) | |
275 | amba_system_id = *(unsigned long *)pp->value; | |
276 | ||
277 | /* Find IRQMP IRQ Controller Registers base adr otherwise bail out */ | |
53aea7ca | 278 | np = of_find_node_by_name(rootnp, "GAISLER_IRQMP"); |
9742e72c DH |
279 | if (!np) { |
280 | np = of_find_node_by_name(rootnp, "01_00d"); | |
281 | if (!np) | |
282 | goto bad; | |
283 | } | |
53aea7ca DH |
284 | pp = of_find_property(np, "reg", &len); |
285 | if (!pp) | |
286 | goto bad; | |
287 | leon3_irqctrl_regs = *(struct leon3_irqctrl_regs_map **)pp->value; | |
288 | ||
289 | /* Find GPTIMER Timer Registers base address otherwise bail out. */ | |
2791c1a4 DH |
290 | nnp = rootnp; |
291 | do { | |
292 | np = of_find_node_by_name(nnp, "GAISLER_GPTIMER"); | |
293 | if (!np) { | |
294 | np = of_find_node_by_name(nnp, "01_011"); | |
295 | if (!np) | |
296 | goto bad; | |
297 | } | |
298 | ||
299 | ampopts = 0; | |
300 | pp = of_find_property(np, "ampopts", &len); | |
301 | if (pp) { | |
302 | ampopts = *(int *)pp->value; | |
303 | if (ampopts == 0) { | |
304 | /* Skip this instance, resource already | |
305 | * allocated by other OS */ | |
306 | nnp = np; | |
307 | continue; | |
308 | } | |
309 | } | |
310 | ||
311 | /* Select Timer-Instance on Timer Core. Default is zero */ | |
312 | leon3_gptimer_idx = ampopts & 0x7; | |
313 | ||
314 | pp = of_find_property(np, "reg", &len); | |
315 | if (pp) | |
316 | leon3_gptimer_regs = *(struct leon3_gptimer_regs_map **) | |
317 | pp->value; | |
318 | pp = of_find_property(np, "interrupts", &len); | |
319 | if (pp) | |
320 | leon3_gptimer_irq = *(unsigned int *)pp->value; | |
321 | } while (0); | |
53aea7ca | 322 | |
a481b5d0 DH |
323 | if (!(leon3_gptimer_regs && leon3_irqctrl_regs && leon3_gptimer_irq)) |
324 | goto bad; | |
325 | ||
326 | LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].val, 0); | |
327 | LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].rld, | |
328 | (((1000000 / HZ) - 1))); | |
329 | LEON3_BYPASS_STORE_PA( | |
2791c1a4 | 330 | &leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl, 0); |
5213a780 | 331 | |
8401707f | 332 | #ifdef CONFIG_SMP |
a481b5d0 | 333 | leon3_ticker_irq = leon3_gptimer_irq + 1 + leon3_gptimer_idx; |
8401707f | 334 | |
a481b5d0 DH |
335 | if (!(LEON3_BYPASS_LOAD_PA(&leon3_gptimer_regs->config) & |
336 | (1<<LEON3_GPTIMER_SEPIRQ))) { | |
337 | printk(KERN_ERR "timer not configured with separate irqs\n"); | |
338 | BUG(); | |
5213a780 KE |
339 | } |
340 | ||
a481b5d0 DH |
341 | LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].val, |
342 | 0); | |
343 | LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].rld, | |
344 | (((1000000/HZ) - 1))); | |
345 | LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].ctrl, | |
346 | 0); | |
347 | #endif | |
348 | ||
349 | /* | |
350 | * The IRQ controller may (if implemented) consist of multiple | |
351 | * IRQ controllers, each mapped on a 4Kb boundary. | |
352 | * Each CPU may be routed to different IRQCTRLs, however | |
353 | * we assume that all CPUs (in SMP system) is routed to the | |
354 | * same IRQ Controller, and for non-SMP only one IRQCTRL is | |
355 | * accessed anyway. | |
356 | * In AMP systems, Linux must run on CPU0 for the time being. | |
357 | */ | |
01dae0f0 DH |
358 | icsel = LEON3_BYPASS_LOAD_PA(&leon3_irqctrl_regs->icsel[boot_cpu_id/8]); |
359 | icsel = (icsel >> ((7 - (boot_cpu_id&0x7)) * 4)) & 0xf; | |
a481b5d0 DH |
360 | leon3_irqctrl_regs += icsel; |
361 | ||
970def65 DH |
362 | /* Mask all IRQs on boot-cpu IRQ controller */ |
363 | LEON3_BYPASS_STORE_PA(&leon3_irqctrl_regs->mask[boot_cpu_id], 0); | |
364 | ||
a481b5d0 DH |
365 | /* Probe extended IRQ controller */ |
366 | eirq = (LEON3_BYPASS_LOAD_PA(&leon3_irqctrl_regs->mpstatus) | |
367 | >> 16) & 0xf; | |
368 | if (eirq != 0) | |
369 | leon_eirq_setup(eirq); | |
370 | ||
4c6773c3 | 371 | irq = _leon_build_device_irq(NULL, leon3_gptimer_irq+leon3_gptimer_idx); |
6baa9b20 | 372 | err = request_irq(irq, counter_fn, IRQF_TIMER, "timer", NULL); |
6baa9b20 | 373 | if (err) { |
a481b5d0 | 374 | printk(KERN_ERR "unable to attach timer IRQ%d\n", irq); |
5213a780 KE |
375 | prom_halt(); |
376 | } | |
377 | ||
10f0d07c DH |
378 | #ifdef CONFIG_SMP |
379 | { | |
380 | unsigned long flags; | |
381 | ||
382 | /* | |
383 | * In SMP, sun4m adds a IPI handler to IRQ trap handler that | |
384 | * LEON never must take, sun4d and LEON overwrites the branch | |
385 | * with a NOP. | |
386 | */ | |
387 | local_irq_save(flags); | |
388 | patchme_maybe_smp_msg[0] = 0x01000000; /* NOP out the branch */ | |
389 | local_flush_cache_all(); | |
390 | local_irq_restore(flags); | |
391 | } | |
392 | #endif | |
393 | ||
a481b5d0 DH |
394 | LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl, |
395 | LEON3_GPTIMER_EN | | |
396 | LEON3_GPTIMER_RL | | |
397 | LEON3_GPTIMER_LD | | |
398 | LEON3_GPTIMER_IRQEN); | |
8401707f KE |
399 | |
400 | #ifdef CONFIG_SMP | |
a481b5d0 DH |
401 | /* Install per-cpu IRQ handler for broadcasted ticker */ |
402 | irq = leon_build_device_irq(leon3_ticker_irq, handle_percpu_irq, | |
403 | "per-cpu", 0); | |
404 | err = request_irq(irq, leon_percpu_timer_interrupt, | |
405 | IRQF_PERCPU | IRQF_TIMER, "ticker", | |
406 | NULL); | |
407 | if (err) { | |
408 | printk(KERN_ERR "unable to attach ticker IRQ%d\n", irq); | |
409 | prom_halt(); | |
410 | } | |
2cf95304 | 411 | |
a481b5d0 DH |
412 | LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].ctrl, |
413 | LEON3_GPTIMER_EN | | |
414 | LEON3_GPTIMER_RL | | |
415 | LEON3_GPTIMER_LD | | |
416 | LEON3_GPTIMER_IRQEN); | |
8401707f | 417 | #endif |
53aea7ca DH |
418 | return; |
419 | bad: | |
420 | printk(KERN_ERR "No Timer/irqctrl found\n"); | |
421 | BUG(); | |
422 | return; | |
5213a780 KE |
423 | } |
424 | ||
425 | void leon_clear_clock_irq(void) | |
426 | { | |
427 | } | |
428 | ||
429 | void leon_load_profile_irq(int cpu, unsigned int limit) | |
430 | { | |
431 | BUG(); | |
432 | } | |
433 | ||
5213a780 KE |
434 | void __init leon_trans_init(struct device_node *dp) |
435 | { | |
436 | if (strcmp(dp->type, "cpu") == 0 && strcmp(dp->name, "<NULL>") == 0) { | |
437 | struct property *p; | |
438 | p = of_find_property(dp, "mid", (void *)0); | |
439 | if (p) { | |
440 | int mid; | |
441 | dp->name = prom_early_alloc(5 + 1); | |
442 | memcpy(&mid, p->value, p->length); | |
443 | sprintf((char *)dp->name, "cpu%.2d", mid); | |
444 | } | |
445 | } | |
446 | } | |
447 | ||
448 | void __initdata (*prom_amba_init)(struct device_node *dp, struct device_node ***nextp) = 0; | |
449 | ||
450 | void __init leon_node_init(struct device_node *dp, struct device_node ***nextp) | |
451 | { | |
452 | if (prom_amba_init && | |
453 | strcmp(dp->type, "ambapp") == 0 && | |
454 | strcmp(dp->name, "ambapp0") == 0) { | |
455 | prom_amba_init(dp, nextp); | |
456 | } | |
457 | } | |
458 | ||
8401707f KE |
459 | #ifdef CONFIG_SMP |
460 | ||
461 | void leon_set_cpu_int(int cpu, int level) | |
462 | { | |
463 | unsigned long mask; | |
464 | mask = get_irqmask(level); | |
465 | LEON3_BYPASS_STORE_PA(&leon3_irqctrl_regs->force[cpu], mask); | |
466 | } | |
467 | ||
468 | static void leon_clear_ipi(int cpu, int level) | |
469 | { | |
470 | unsigned long mask; | |
471 | mask = get_irqmask(level); | |
472 | LEON3_BYPASS_STORE_PA(&leon3_irqctrl_regs->force[cpu], mask<<16); | |
473 | } | |
474 | ||
475 | static void leon_set_udt(int cpu) | |
476 | { | |
477 | } | |
478 | ||
479 | void leon_clear_profile_irq(int cpu) | |
480 | { | |
481 | } | |
482 | ||
483 | void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu) | |
484 | { | |
485 | unsigned long mask, flags, *addr; | |
486 | mask = get_irqmask(irq_nr); | |
d61a38b2 | 487 | spin_lock_irqsave(&leon_irq_lock, flags); |
a481b5d0 DH |
488 | addr = (unsigned long *)LEON_IMASK(cpu); |
489 | LEON3_BYPASS_STORE_PA(addr, (LEON3_BYPASS_LOAD_PA(addr) | mask)); | |
d61a38b2 | 490 | spin_unlock_irqrestore(&leon_irq_lock, flags); |
8401707f KE |
491 | } |
492 | ||
493 | #endif | |
494 | ||
5213a780 KE |
495 | void __init leon_init_IRQ(void) |
496 | { | |
6baa9b20 | 497 | sparc_irq_config.init_timers = leon_init_timers; |
4c6773c3 | 498 | sparc_irq_config.build_device_irq = _leon_build_device_irq; |
5213a780 KE |
499 | |
500 | BTFIXUPSET_CALL(clear_clock_irq, leon_clear_clock_irq, | |
501 | BTFIXUPCALL_NORM); | |
502 | BTFIXUPSET_CALL(load_profile_irq, leon_load_profile_irq, | |
503 | BTFIXUPCALL_NOP); | |
504 | ||
505 | #ifdef CONFIG_SMP | |
506 | BTFIXUPSET_CALL(set_cpu_int, leon_set_cpu_int, BTFIXUPCALL_NORM); | |
507 | BTFIXUPSET_CALL(clear_cpu_int, leon_clear_ipi, BTFIXUPCALL_NORM); | |
508 | BTFIXUPSET_CALL(set_irq_udt, leon_set_udt, BTFIXUPCALL_NORM); | |
509 | #endif | |
510 | ||
511 | } | |
512 | ||
513 | void __init leon_init(void) | |
514 | { | |
ed418502 | 515 | of_pdt_build_more = &leon_node_init; |
5213a780 | 516 | } |