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bbeb3f4c SR |
1 | #ifndef _ASM_POWERPC_MPIC_H |
2 | #define _ASM_POWERPC_MPIC_H | |
88ced031 | 3 | #ifdef __KERNEL__ |
bbeb3f4c | 4 | |
14cf11af | 5 | #include <linux/irq.h> |
3669e930 | 6 | #include <linux/sysdev.h> |
fbf0274e | 7 | #include <asm/dcr.h> |
14cf11af PM |
8 | |
9 | /* | |
10 | * Global registers | |
11 | */ | |
12 | ||
13 | #define MPIC_GREG_BASE 0x01000 | |
14 | ||
15 | #define MPIC_GREG_FEATURE_0 0x00000 | |
16 | #define MPIC_GREG_FEATURE_LAST_SRC_MASK 0x07ff0000 | |
17 | #define MPIC_GREG_FEATURE_LAST_SRC_SHIFT 16 | |
18 | #define MPIC_GREG_FEATURE_LAST_CPU_MASK 0x00001f00 | |
19 | #define MPIC_GREG_FEATURE_LAST_CPU_SHIFT 8 | |
20 | #define MPIC_GREG_FEATURE_VERSION_MASK 0xff | |
21 | #define MPIC_GREG_FEATURE_1 0x00010 | |
22 | #define MPIC_GREG_GLOBAL_CONF_0 0x00020 | |
23 | #define MPIC_GREG_GCONF_RESET 0x80000000 | |
24 | #define MPIC_GREG_GCONF_8259_PTHROU_DIS 0x20000000 | |
25 | #define MPIC_GREG_GCONF_BASE_MASK 0x000fffff | |
26 | #define MPIC_GREG_GLOBAL_CONF_1 0x00030 | |
868ea0c9 MG |
27 | #define MPIC_GREG_GLOBAL_CONF_1_SIE 0x08000000 |
28 | #define MPIC_GREG_GLOBAL_CONF_1_CLK_RATIO_MASK 0x70000000 | |
29 | #define MPIC_GREG_GLOBAL_CONF_1_CLK_RATIO(r) \ | |
30 | (((r) << 28) & MPIC_GREG_GLOBAL_CONF_1_CLK_RATIO_MASK) | |
14cf11af PM |
31 | #define MPIC_GREG_VENDOR_0 0x00040 |
32 | #define MPIC_GREG_VENDOR_1 0x00050 | |
33 | #define MPIC_GREG_VENDOR_2 0x00060 | |
34 | #define MPIC_GREG_VENDOR_3 0x00070 | |
35 | #define MPIC_GREG_VENDOR_ID 0x00080 | |
36 | #define MPIC_GREG_VENDOR_ID_STEPPING_MASK 0x00ff0000 | |
37 | #define MPIC_GREG_VENDOR_ID_STEPPING_SHIFT 16 | |
38 | #define MPIC_GREG_VENDOR_ID_DEVICE_ID_MASK 0x0000ff00 | |
39 | #define MPIC_GREG_VENDOR_ID_DEVICE_ID_SHIFT 8 | |
40 | #define MPIC_GREG_VENDOR_ID_VENDOR_ID_MASK 0x000000ff | |
41 | #define MPIC_GREG_PROCESSOR_INIT 0x00090 | |
42 | #define MPIC_GREG_IPI_VECTOR_PRI_0 0x000a0 | |
43 | #define MPIC_GREG_IPI_VECTOR_PRI_1 0x000b0 | |
44 | #define MPIC_GREG_IPI_VECTOR_PRI_2 0x000c0 | |
45 | #define MPIC_GREG_IPI_VECTOR_PRI_3 0x000d0 | |
7233593b | 46 | #define MPIC_GREG_IPI_STRIDE 0x10 |
14cf11af PM |
47 | #define MPIC_GREG_SPURIOUS 0x000e0 |
48 | #define MPIC_GREG_TIMER_FREQ 0x000f0 | |
49 | ||
50 | /* | |
51 | * | |
52 | * Timer registers | |
53 | */ | |
54 | #define MPIC_TIMER_BASE 0x01100 | |
55 | #define MPIC_TIMER_STRIDE 0x40 | |
56 | ||
57 | #define MPIC_TIMER_CURRENT_CNT 0x00000 | |
58 | #define MPIC_TIMER_BASE_CNT 0x00010 | |
59 | #define MPIC_TIMER_VECTOR_PRI 0x00020 | |
60 | #define MPIC_TIMER_DESTINATION 0x00030 | |
61 | ||
62 | /* | |
63 | * Per-Processor registers | |
64 | */ | |
65 | ||
66 | #define MPIC_CPU_THISBASE 0x00000 | |
67 | #define MPIC_CPU_BASE 0x20000 | |
68 | #define MPIC_CPU_STRIDE 0x01000 | |
69 | ||
70 | #define MPIC_CPU_IPI_DISPATCH_0 0x00040 | |
71 | #define MPIC_CPU_IPI_DISPATCH_1 0x00050 | |
72 | #define MPIC_CPU_IPI_DISPATCH_2 0x00060 | |
73 | #define MPIC_CPU_IPI_DISPATCH_3 0x00070 | |
7233593b | 74 | #define MPIC_CPU_IPI_DISPATCH_STRIDE 0x00010 |
14cf11af PM |
75 | #define MPIC_CPU_CURRENT_TASK_PRI 0x00080 |
76 | #define MPIC_CPU_TASKPRI_MASK 0x0000000f | |
77 | #define MPIC_CPU_WHOAMI 0x00090 | |
78 | #define MPIC_CPU_WHOAMI_MASK 0x0000001f | |
79 | #define MPIC_CPU_INTACK 0x000a0 | |
80 | #define MPIC_CPU_EOI 0x000b0 | |
81 | ||
82 | /* | |
83 | * Per-source registers | |
84 | */ | |
85 | ||
86 | #define MPIC_IRQ_BASE 0x10000 | |
87 | #define MPIC_IRQ_STRIDE 0x00020 | |
88 | #define MPIC_IRQ_VECTOR_PRI 0x00000 | |
89 | #define MPIC_VECPRI_MASK 0x80000000 | |
90 | #define MPIC_VECPRI_ACTIVITY 0x40000000 /* Read Only */ | |
91 | #define MPIC_VECPRI_PRIORITY_MASK 0x000f0000 | |
92 | #define MPIC_VECPRI_PRIORITY_SHIFT 16 | |
93 | #define MPIC_VECPRI_VECTOR_MASK 0x000007ff | |
94 | #define MPIC_VECPRI_POLARITY_POSITIVE 0x00800000 | |
95 | #define MPIC_VECPRI_POLARITY_NEGATIVE 0x00000000 | |
96 | #define MPIC_VECPRI_POLARITY_MASK 0x00800000 | |
97 | #define MPIC_VECPRI_SENSE_LEVEL 0x00400000 | |
98 | #define MPIC_VECPRI_SENSE_EDGE 0x00000000 | |
99 | #define MPIC_VECPRI_SENSE_MASK 0x00400000 | |
100 | #define MPIC_IRQ_DESTINATION 0x00010 | |
101 | ||
102 | #define MPIC_MAX_IRQ_SOURCES 2048 | |
103 | #define MPIC_MAX_CPUS 32 | |
104 | #define MPIC_MAX_ISU 32 | |
105 | ||
7233593b ZR |
106 | /* |
107 | * Tsi108 implementation of MPIC has many differences from the original one | |
108 | */ | |
109 | ||
110 | /* | |
111 | * Global registers | |
112 | */ | |
113 | ||
114 | #define TSI108_GREG_BASE 0x00000 | |
115 | #define TSI108_GREG_FEATURE_0 0x00000 | |
116 | #define TSI108_GREG_GLOBAL_CONF_0 0x00004 | |
117 | #define TSI108_GREG_VENDOR_ID 0x0000c | |
118 | #define TSI108_GREG_IPI_VECTOR_PRI_0 0x00204 /* Doorbell 0 */ | |
119 | #define TSI108_GREG_IPI_STRIDE 0x0c | |
120 | #define TSI108_GREG_SPURIOUS 0x00010 | |
121 | #define TSI108_GREG_TIMER_FREQ 0x00014 | |
122 | ||
123 | /* | |
124 | * Timer registers | |
125 | */ | |
126 | #define TSI108_TIMER_BASE 0x0030 | |
127 | #define TSI108_TIMER_STRIDE 0x10 | |
128 | #define TSI108_TIMER_CURRENT_CNT 0x00000 | |
129 | #define TSI108_TIMER_BASE_CNT 0x00004 | |
130 | #define TSI108_TIMER_VECTOR_PRI 0x00008 | |
131 | #define TSI108_TIMER_DESTINATION 0x0000c | |
132 | ||
133 | /* | |
134 | * Per-Processor registers | |
135 | */ | |
136 | #define TSI108_CPU_BASE 0x00300 | |
137 | #define TSI108_CPU_STRIDE 0x00040 | |
138 | #define TSI108_CPU_IPI_DISPATCH_0 0x00200 | |
139 | #define TSI108_CPU_IPI_DISPATCH_STRIDE 0x00000 | |
140 | #define TSI108_CPU_CURRENT_TASK_PRI 0x00000 | |
141 | #define TSI108_CPU_WHOAMI 0xffffffff | |
142 | #define TSI108_CPU_INTACK 0x00004 | |
143 | #define TSI108_CPU_EOI 0x00008 | |
144 | ||
145 | /* | |
146 | * Per-source registers | |
147 | */ | |
148 | #define TSI108_IRQ_BASE 0x00100 | |
149 | #define TSI108_IRQ_STRIDE 0x00008 | |
150 | #define TSI108_IRQ_VECTOR_PRI 0x00000 | |
151 | #define TSI108_VECPRI_VECTOR_MASK 0x000000ff | |
152 | #define TSI108_VECPRI_POLARITY_POSITIVE 0x01000000 | |
153 | #define TSI108_VECPRI_POLARITY_NEGATIVE 0x00000000 | |
154 | #define TSI108_VECPRI_SENSE_LEVEL 0x02000000 | |
155 | #define TSI108_VECPRI_SENSE_EDGE 0x00000000 | |
156 | #define TSI108_VECPRI_POLARITY_MASK 0x01000000 | |
157 | #define TSI108_VECPRI_SENSE_MASK 0x02000000 | |
158 | #define TSI108_IRQ_DESTINATION 0x00004 | |
159 | ||
160 | /* weird mpic register indices and mask bits in the HW info array */ | |
161 | enum { | |
162 | MPIC_IDX_GREG_BASE = 0, | |
163 | MPIC_IDX_GREG_FEATURE_0, | |
164 | MPIC_IDX_GREG_GLOBAL_CONF_0, | |
165 | MPIC_IDX_GREG_VENDOR_ID, | |
166 | MPIC_IDX_GREG_IPI_VECTOR_PRI_0, | |
167 | MPIC_IDX_GREG_IPI_STRIDE, | |
168 | MPIC_IDX_GREG_SPURIOUS, | |
169 | MPIC_IDX_GREG_TIMER_FREQ, | |
170 | ||
171 | MPIC_IDX_TIMER_BASE, | |
172 | MPIC_IDX_TIMER_STRIDE, | |
173 | MPIC_IDX_TIMER_CURRENT_CNT, | |
174 | MPIC_IDX_TIMER_BASE_CNT, | |
175 | MPIC_IDX_TIMER_VECTOR_PRI, | |
176 | MPIC_IDX_TIMER_DESTINATION, | |
177 | ||
178 | MPIC_IDX_CPU_BASE, | |
179 | MPIC_IDX_CPU_STRIDE, | |
180 | MPIC_IDX_CPU_IPI_DISPATCH_0, | |
181 | MPIC_IDX_CPU_IPI_DISPATCH_STRIDE, | |
182 | MPIC_IDX_CPU_CURRENT_TASK_PRI, | |
183 | MPIC_IDX_CPU_WHOAMI, | |
184 | MPIC_IDX_CPU_INTACK, | |
185 | MPIC_IDX_CPU_EOI, | |
186 | ||
187 | MPIC_IDX_IRQ_BASE, | |
188 | MPIC_IDX_IRQ_STRIDE, | |
189 | MPIC_IDX_IRQ_VECTOR_PRI, | |
190 | ||
191 | MPIC_IDX_VECPRI_VECTOR_MASK, | |
192 | MPIC_IDX_VECPRI_POLARITY_POSITIVE, | |
193 | MPIC_IDX_VECPRI_POLARITY_NEGATIVE, | |
194 | MPIC_IDX_VECPRI_SENSE_LEVEL, | |
195 | MPIC_IDX_VECPRI_SENSE_EDGE, | |
196 | MPIC_IDX_VECPRI_POLARITY_MASK, | |
197 | MPIC_IDX_VECPRI_SENSE_MASK, | |
198 | MPIC_IDX_IRQ_DESTINATION, | |
199 | MPIC_IDX_END | |
200 | }; | |
201 | ||
202 | ||
6cfef5b2 | 203 | #ifdef CONFIG_MPIC_U3_HT_IRQS |
14cf11af PM |
204 | /* Fixup table entry */ |
205 | struct mpic_irq_fixup | |
206 | { | |
207 | u8 __iomem *base; | |
1beb6a7d | 208 | u8 __iomem *applebase; |
c4b22f26 | 209 | u32 data; |
1beb6a7d | 210 | unsigned int index; |
14cf11af | 211 | }; |
6cfef5b2 | 212 | #endif /* CONFIG_MPIC_U3_HT_IRQS */ |
14cf11af PM |
213 | |
214 | ||
fbf0274e BH |
215 | enum mpic_reg_type { |
216 | mpic_access_mmio_le, | |
217 | mpic_access_mmio_be, | |
218 | #ifdef CONFIG_PPC_DCR | |
219 | mpic_access_dcr | |
220 | #endif | |
221 | }; | |
222 | ||
223 | struct mpic_reg_bank { | |
224 | u32 __iomem *base; | |
225 | #ifdef CONFIG_PPC_DCR | |
226 | dcr_host_t dhost; | |
227 | unsigned int dbase; | |
228 | unsigned int doff; | |
229 | #endif /* CONFIG_PPC_DCR */ | |
230 | }; | |
231 | ||
3669e930 JB |
232 | struct mpic_irq_save { |
233 | u32 vecprio, | |
234 | dest; | |
235 | #ifdef CONFIG_MPIC_U3_HT_IRQS | |
236 | u32 fixup_data; | |
237 | #endif | |
238 | }; | |
239 | ||
14cf11af PM |
240 | /* The instance data of a given MPIC */ |
241 | struct mpic | |
242 | { | |
0ebfff14 BH |
243 | /* The remapper for this MPIC */ |
244 | struct irq_host *irqhost; | |
245 | ||
14cf11af | 246 | /* The "linux" controller struct */ |
b9e5b4e6 | 247 | struct irq_chip hc_irq; |
6cfef5b2 | 248 | #ifdef CONFIG_MPIC_U3_HT_IRQS |
b9e5b4e6 BH |
249 | struct irq_chip hc_ht_irq; |
250 | #endif | |
14cf11af | 251 | #ifdef CONFIG_SMP |
b9e5b4e6 | 252 | struct irq_chip hc_ipi; |
14cf11af PM |
253 | #endif |
254 | const char *name; | |
255 | /* Flags */ | |
256 | unsigned int flags; | |
257 | /* How many irq sources in a given ISU */ | |
258 | unsigned int isu_size; | |
259 | unsigned int isu_shift; | |
260 | unsigned int isu_mask; | |
14cf11af | 261 | unsigned int irq_count; |
14cf11af PM |
262 | /* Number of sources */ |
263 | unsigned int num_sources; | |
264 | /* Number of CPUs */ | |
265 | unsigned int num_cpus; | |
0ebfff14 | 266 | /* default senses array */ |
14cf11af PM |
267 | unsigned char *senses; |
268 | unsigned int senses_count; | |
269 | ||
7df2457d OJ |
270 | /* vector numbers used for internal sources (ipi/timers) */ |
271 | unsigned int ipi_vecs[4]; | |
272 | unsigned int timer_vecs[4]; | |
273 | ||
274 | /* Spurious vector to program into unused sources */ | |
275 | unsigned int spurious_vec; | |
276 | ||
6cfef5b2 | 277 | #ifdef CONFIG_MPIC_U3_HT_IRQS |
14cf11af PM |
278 | /* The fixup table */ |
279 | struct mpic_irq_fixup *fixups; | |
280 | spinlock_t fixup_lock; | |
281 | #endif | |
282 | ||
fbf0274e BH |
283 | /* Register access method */ |
284 | enum mpic_reg_type reg_type; | |
285 | ||
14cf11af | 286 | /* The various ioremap'ed bases */ |
fbf0274e BH |
287 | struct mpic_reg_bank gregs; |
288 | struct mpic_reg_bank tmregs; | |
289 | struct mpic_reg_bank cpuregs[MPIC_MAX_CPUS]; | |
290 | struct mpic_reg_bank isus[MPIC_MAX_ISU]; | |
291 | ||
292 | #ifdef CONFIG_PPC_DCR | |
293 | unsigned int dcr_base; | |
294 | #endif | |
14cf11af | 295 | |
7fd72186 BH |
296 | /* Protected sources */ |
297 | unsigned long *protected; | |
298 | ||
7233593b ZR |
299 | #ifdef CONFIG_MPIC_WEIRD |
300 | /* Pointer to HW info array */ | |
301 | u32 *hw_set; | |
302 | #endif | |
303 | ||
a7de7c74 ME |
304 | #ifdef CONFIG_PCI_MSI |
305 | spinlock_t bitmap_lock; | |
306 | unsigned long *hwirq_bitmap; | |
307 | #endif | |
308 | ||
14cf11af PM |
309 | /* link */ |
310 | struct mpic *next; | |
3669e930 JB |
311 | |
312 | struct sys_device sysdev; | |
313 | ||
314 | #ifdef CONFIG_PM | |
315 | struct mpic_irq_save *save_data; | |
316 | #endif | |
14cf11af PM |
317 | }; |
318 | ||
7233593b ZR |
319 | /* |
320 | * MPIC flags (passed to mpic_alloc) | |
321 | * | |
322 | * The top 4 bits contain an MPIC bhw id that is used to index the | |
323 | * register offsets and some masks when CONFIG_MPIC_WEIRD is set. | |
324 | * Note setting any ID (leaving those bits to 0) means standard MPIC | |
325 | */ | |
326 | ||
14cf11af PM |
327 | /* This is the primary controller, only that one has IPIs and |
328 | * has afinity control. A non-primary MPIC always uses CPU0 | |
329 | * registers only | |
330 | */ | |
331 | #define MPIC_PRIMARY 0x00000001 | |
7233593b | 332 | |
14cf11af PM |
333 | /* Set this for a big-endian MPIC */ |
334 | #define MPIC_BIG_ENDIAN 0x00000002 | |
335 | /* Broken U3 MPIC */ | |
6cfef5b2 | 336 | #define MPIC_U3_HT_IRQS 0x00000004 |
14cf11af PM |
337 | /* Broken IPI registers (autodetected) */ |
338 | #define MPIC_BROKEN_IPI 0x00000008 | |
339 | /* MPIC wants a reset */ | |
340 | #define MPIC_WANTS_RESET 0x00000010 | |
7233593b ZR |
341 | /* Spurious vector requires EOI */ |
342 | #define MPIC_SPV_EOI 0x00000020 | |
343 | /* No passthrough disable */ | |
344 | #define MPIC_NO_PTHROU_DIS 0x00000040 | |
fbf0274e BH |
345 | /* DCR based MPIC */ |
346 | #define MPIC_USES_DCR 0x00000080 | |
7df2457d OJ |
347 | /* MPIC has 11-bit vector fields (or larger) */ |
348 | #define MPIC_LARGE_VECTORS 0x00000100 | |
7233593b ZR |
349 | |
350 | /* MPIC HW modification ID */ | |
351 | #define MPIC_REGSET_MASK 0xf0000000 | |
352 | #define MPIC_REGSET(val) (((val) & 0xf ) << 28) | |
353 | #define MPIC_GET_REGSET(flags) (((flags) >> 28) & 0xf) | |
354 | ||
355 | #define MPIC_REGSET_STANDARD MPIC_REGSET(0) /* Original MPIC */ | |
356 | #define MPIC_REGSET_TSI108 MPIC_REGSET(1) /* Tsi108/109 PIC */ | |
14cf11af PM |
357 | |
358 | /* Allocate the controller structure and setup the linux irq descs | |
359 | * for the range if interrupts passed in. No HW initialization is | |
360 | * actually performed. | |
361 | * | |
362 | * @phys_addr: physial base address of the MPIC | |
363 | * @flags: flags, see constants above | |
364 | * @isu_size: number of interrupts in an ISU. Use 0 to use a | |
365 | * standard ISU-less setup (aka powermac) | |
366 | * @irq_offset: first irq number to assign to this mpic | |
367 | * @irq_count: number of irqs to use with this mpic IRQ sources. Pass 0 | |
368 | * to match the number of sources | |
369 | * @ipi_offset: first irq number to assign to this mpic IPI sources, | |
370 | * used only on primary mpic | |
371 | * @senses: array of sense values | |
372 | * @senses_num: number of entries in the array | |
373 | * | |
374 | * Note about the sense array. If none is passed, all interrupts are | |
6cfef5b2 | 375 | * setup to be level negative unless MPIC_U3_HT_IRQS is set in which |
14cf11af PM |
376 | * case they are edge positive (and the array is ignored anyway). |
377 | * The values in the array start at the first source of the MPIC, | |
378 | * that is senses[0] correspond to linux irq "irq_offset". | |
379 | */ | |
0ebfff14 | 380 | extern struct mpic *mpic_alloc(struct device_node *node, |
a959ff56 | 381 | phys_addr_t phys_addr, |
14cf11af PM |
382 | unsigned int flags, |
383 | unsigned int isu_size, | |
14cf11af | 384 | unsigned int irq_count, |
14cf11af PM |
385 | const char *name); |
386 | ||
387 | /* Assign ISUs, to call before mpic_init() | |
388 | * | |
389 | * @mpic: controller structure as returned by mpic_alloc() | |
390 | * @isu_num: ISU number | |
391 | * @phys_addr: physical address of the ISU | |
392 | */ | |
393 | extern void mpic_assign_isu(struct mpic *mpic, unsigned int isu_num, | |
a959ff56 | 394 | phys_addr_t phys_addr); |
14cf11af | 395 | |
0ebfff14 BH |
396 | /* Set default sense codes |
397 | * | |
398 | * @mpic: controller | |
399 | * @senses: array of sense codes | |
400 | * @count: size of above array | |
401 | * | |
402 | * Optionally provide an array (indexed on hardware interrupt numbers | |
403 | * for this MPIC) of default sense codes for the chip. Those are linux | |
404 | * sense codes IRQ_TYPE_* | |
405 | * | |
406 | * The driver gets ownership of the pointer, don't dispose of it or | |
407 | * anything like that. __init only. | |
408 | */ | |
409 | extern void mpic_set_default_senses(struct mpic *mpic, u8 *senses, int count); | |
410 | ||
411 | ||
14cf11af PM |
412 | /* Initialize the controller. After this has been called, none of the above |
413 | * should be called again for this mpic | |
414 | */ | |
415 | extern void mpic_init(struct mpic *mpic); | |
416 | ||
14cf11af PM |
417 | /* |
418 | * All of the following functions must only be used after the | |
419 | * ISUs have been assigned and the controller fully initialized | |
420 | * with mpic_init() | |
421 | */ | |
422 | ||
423 | ||
424 | /* Change/Read the priority of an interrupt. Default is 8 for irqs and | |
425 | * 10 for IPIs. You can call this on both IPIs and IRQ numbers, but the | |
426 | * IPI number is then the offset'ed (linux irq number mapped to the IPI) | |
427 | */ | |
428 | extern void mpic_irq_set_priority(unsigned int irq, unsigned int pri); | |
429 | extern unsigned int mpic_irq_get_priority(unsigned int irq); | |
430 | ||
431 | /* Setup a non-boot CPU */ | |
432 | extern void mpic_setup_this_cpu(void); | |
433 | ||
434 | /* Clean up for kexec (or cpu offline or ...) */ | |
435 | extern void mpic_teardown_this_cpu(int secondary); | |
436 | ||
437 | /* Get the current cpu priority for this cpu (0..15) */ | |
438 | extern int mpic_cpu_get_priority(void); | |
439 | ||
440 | /* Set the current cpu priority for this cpu */ | |
441 | extern void mpic_cpu_set_priority(int prio); | |
442 | ||
443 | /* Request IPIs on primary mpic */ | |
444 | extern void mpic_request_ipis(void); | |
445 | ||
446 | /* Send an IPI (non offseted number 0..3) */ | |
447 | extern void mpic_send_ipi(unsigned int ipi_no, unsigned int cpu_mask); | |
448 | ||
a9c59264 PM |
449 | /* Send a message (IPI) to a given target (cpu number or MSG_*) */ |
450 | void smp_mpic_message_pass(int target, int msg); | |
451 | ||
14cf11af | 452 | /* Fetch interrupt from a given mpic */ |
35a84c2f | 453 | extern unsigned int mpic_get_one_irq(struct mpic *mpic); |
14cf11af | 454 | /* This one gets to the primary mpic */ |
35a84c2f | 455 | extern unsigned int mpic_get_irq(void); |
14cf11af | 456 | |
868ea0c9 MG |
457 | /* Set the EPIC clock ratio */ |
458 | void mpic_set_clk_ratio(struct mpic *mpic, u32 clock_ratio); | |
459 | ||
460 | /* Enable/Disable EPIC serial interrupt mode */ | |
461 | void mpic_set_serial_int(struct mpic *mpic, int enable); | |
462 | ||
88ced031 | 463 | #endif /* __KERNEL__ */ |
bbeb3f4c | 464 | #endif /* _ASM_POWERPC_MPIC_H */ |