2 #ifndef _ASM_POWERPC_IRQ_H
3 #define _ASM_POWERPC_IRQ_H
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
12 #include <linux/threads.h>
14 #include <asm/types.h>
15 #include <asm/atomic.h>
17 /* this number is used when no interrupt has been assigned */
21 * These constants are used for passing information about interrupt
22 * signal polarity and level/edge sensing to the low-level PIC chip
25 #define IRQ_SENSE_MASK 0x1
26 #define IRQ_SENSE_LEVEL 0x1 /* interrupt on active level */
27 #define IRQ_SENSE_EDGE 0x0 /* interrupt triggered by edge */
29 #define IRQ_POLARITY_MASK 0x2
30 #define IRQ_POLARITY_POSITIVE 0x2 /* high level or low->high edge */
31 #define IRQ_POLARITY_NEGATIVE 0x0 /* low level or high->low edge */
34 * IRQ line status macro IRQ_PER_CPU is used
36 #define ARCH_HAS_IRQ_PER_CPU
38 #define get_irq_desc(irq) (&irq_desc[(irq)])
40 /* Define a way to iterate across irqs. */
41 #define for_each_irq(i) \
42 for ((i) = 0; (i) < NR_IRQS; ++(i))
47 * Maximum number of interrupt sources that we can handle.
51 /* Interrupt numbers are virtual in case they are sparsely
52 * distributed by the hardware.
54 extern unsigned int virt_irq_to_real_map[NR_IRQS];
56 /* The maximum virtual IRQ number that we support. This
57 * can be set by the platform and will be reduced by the
58 * value of __irq_offset_value. It defaults to and is
59 * capped by (NR_IRQS - 1).
61 extern unsigned int virt_irq_max;
63 /* Create a mapping for a real_irq if it doesn't already exist.
64 * Return the virtual irq as a convenience.
66 int virt_irq_create_mapping(unsigned int real_irq);
67 void virt_irq_init(void);
69 static inline unsigned int virt_irq_to_real(unsigned int virt_irq)
71 return virt_irq_to_real_map[virt_irq];
74 extern unsigned int real_irq_to_virt_slowpath(unsigned int real_irq);
77 * List of interrupt controllers.
85 extern u64 ppc64_interrupt_controller;
89 #if defined(CONFIG_40x)
90 #include <asm/ibm4xx.h>
93 #define NR_BOARD_IRQS 0
96 #ifndef UIC_WIDTH /* Number of interrupts per device */
100 #ifndef NR_UICS /* number of UIC devices */
104 #if defined (CONFIG_403)
106 * The PowerPC 403 cores' Asynchronous Interrupt Controller (AIC) has
107 * 32 possible interrupts, a majority of which are not implemented on
108 * all cores. There are six configurable, external interrupt pins and
109 * there are eight internal interrupts for the on-chip serial port
110 * (SPU), DMA controller, and JTAG controller.
114 #define NR_AIC_IRQS 32
115 #define NR_IRQS (NR_AIC_IRQS + NR_BOARD_IRQS)
117 #elif !defined (CONFIG_403)
120 * The PowerPC 405 cores' Universal Interrupt Controller (UIC) has 32
121 * possible interrupts as well. There are seven, configurable external
122 * interrupt pins and there are 17 internal interrupts for the on-chip
123 * serial port, DMA controller, on-chip Ethernet controller, PCI, etc.
128 #define NR_UIC_IRQS UIC_WIDTH
129 #define NR_IRQS ((NR_UIC_IRQS * NR_UICS) + NR_BOARD_IRQS)
132 #elif defined(CONFIG_44x)
133 #include <asm/ibm44x.h>
135 #define NR_UIC_IRQS 32
136 #define NR_IRQS ((NR_UIC_IRQS * NR_UICS) + NR_BOARD_IRQS)
138 #elif defined(CONFIG_8xx)
140 /* Now include the board configuration specific associations.
142 #include <asm/mpc8xx.h>
144 /* The MPC8xx cores have 16 possible interrupts. There are eight
145 * possible level sensitive interrupts assigned and generated internally
146 * from such devices as CPM, PCMCIA, RTC, PIT, TimeBase and Decrementer.
147 * There are eight external interrupts (IRQs) that can be configured
148 * as either level or edge sensitive.
150 * On some implementations, there is also the possibility of an 8259
151 * through the PCI and PCI-ISA bridges.
153 * We are "flattening" the interrupt vectors of the cascaded CPM
154 * and 8259 interrupt controllers so that we can uniquely identify
155 * any interrupt source with a single integer.
157 #define NR_SIU_INTS 16
158 #define NR_CPM_INTS 32
160 #define NR_8259_INTS 0
163 #define SIU_IRQ_OFFSET 0
164 #define CPM_IRQ_OFFSET (SIU_IRQ_OFFSET + NR_SIU_INTS)
165 #define I8259_IRQ_OFFSET (CPM_IRQ_OFFSET + NR_CPM_INTS)
167 #define NR_IRQS (NR_SIU_INTS + NR_CPM_INTS + NR_8259_INTS)
169 /* These values must be zero-based and map 1:1 with the SIU configuration.
170 * They are used throughout the 8xx I/O subsystem to generate
171 * interrupt masks, flags, and other control patterns. This is why the
172 * current kernel assumption of the 8259 as the base controller is such
173 * a pain in the butt.
175 #define SIU_IRQ0 (0) /* Highest priority */
176 #define SIU_LEVEL0 (1)
178 #define SIU_LEVEL1 (3)
180 #define SIU_LEVEL2 (5)
182 #define SIU_LEVEL3 (7)
184 #define SIU_LEVEL4 (9)
185 #define SIU_IRQ5 (10)
186 #define SIU_LEVEL5 (11)
187 #define SIU_IRQ6 (12)
188 #define SIU_LEVEL6 (13)
189 #define SIU_IRQ7 (14)
190 #define SIU_LEVEL7 (15)
192 #define MPC8xx_INT_FEC1 SIU_LEVEL1
193 #define MPC8xx_INT_FEC2 SIU_LEVEL3
195 #define MPC8xx_INT_SCC1 (CPM_IRQ_OFFSET + CPMVEC_SCC1)
196 #define MPC8xx_INT_SCC2 (CPM_IRQ_OFFSET + CPMVEC_SCC2)
197 #define MPC8xx_INT_SCC3 (CPM_IRQ_OFFSET + CPMVEC_SCC3)
198 #define MPC8xx_INT_SCC4 (CPM_IRQ_OFFSET + CPMVEC_SCC4)
199 #define MPC8xx_INT_SMC1 (CPM_IRQ_OFFSET + CPMVEC_SMC1)
200 #define MPC8xx_INT_SMC2 (CPM_IRQ_OFFSET + CPMVEC_SMC2)
202 /* The internal interrupts we can configure as we see fit.
203 * My personal preference is CPM at level 2, which puts it above the
204 * MBX PCI/ISA/IDE interrupts.
206 #ifndef PIT_INTERRUPT
207 #define PIT_INTERRUPT SIU_LEVEL0
209 #ifndef CPM_INTERRUPT
210 #define CPM_INTERRUPT SIU_LEVEL2
212 #ifndef PCMCIA_INTERRUPT
213 #define PCMCIA_INTERRUPT SIU_LEVEL6
215 #ifndef DEC_INTERRUPT
216 #define DEC_INTERRUPT SIU_LEVEL7
219 /* Some internal interrupt registers use an 8-bit mask for the interrupt
220 * level instead of a number.
222 #define mk_int_int_mask(IL) (1 << (7 - (IL/2)))
224 #elif defined(CONFIG_83xx)
225 #include <asm/mpc83xx.h>
227 #define NR_IRQS (NR_IPIC_INTS)
229 #elif defined(CONFIG_85xx)
230 /* Now include the board configuration specific associations.
232 #include <asm/mpc85xx.h>
234 /* The MPC8548 openpic has 48 internal interrupts and 12 external
237 * We are "flattening" the interrupt vectors of the cascaded CPM
238 * so that we can uniquely identify any interrupt source with a
241 #define NR_CPM_INTS 64
242 #define NR_EPIC_INTS 60
244 #define NR_8259_INTS 0
246 #define NUM_8259_INTERRUPTS NR_8259_INTS
248 #ifndef CPM_IRQ_OFFSET
249 #define CPM_IRQ_OFFSET 0
252 #define NR_IRQS (NR_EPIC_INTS + NR_CPM_INTS + NR_8259_INTS)
254 /* Internal IRQs on MPC85xx OpenPIC */
256 #ifndef MPC85xx_OPENPIC_IRQ_OFFSET
258 #define MPC85xx_OPENPIC_IRQ_OFFSET (CPM_IRQ_OFFSET + NR_CPM_INTS)
260 #define MPC85xx_OPENPIC_IRQ_OFFSET 0
264 /* Not all of these exist on all MPC85xx implementations */
265 #define MPC85xx_IRQ_L2CACHE ( 0 + MPC85xx_OPENPIC_IRQ_OFFSET)
266 #define MPC85xx_IRQ_ECM ( 1 + MPC85xx_OPENPIC_IRQ_OFFSET)
267 #define MPC85xx_IRQ_DDR ( 2 + MPC85xx_OPENPIC_IRQ_OFFSET)
268 #define MPC85xx_IRQ_LBIU ( 3 + MPC85xx_OPENPIC_IRQ_OFFSET)
269 #define MPC85xx_IRQ_DMA0 ( 4 + MPC85xx_OPENPIC_IRQ_OFFSET)
270 #define MPC85xx_IRQ_DMA1 ( 5 + MPC85xx_OPENPIC_IRQ_OFFSET)
271 #define MPC85xx_IRQ_DMA2 ( 6 + MPC85xx_OPENPIC_IRQ_OFFSET)
272 #define MPC85xx_IRQ_DMA3 ( 7 + MPC85xx_OPENPIC_IRQ_OFFSET)
273 #define MPC85xx_IRQ_PCI1 ( 8 + MPC85xx_OPENPIC_IRQ_OFFSET)
274 #define MPC85xx_IRQ_PCI2 ( 9 + MPC85xx_OPENPIC_IRQ_OFFSET)
275 #define MPC85xx_IRQ_RIO_ERROR ( 9 + MPC85xx_OPENPIC_IRQ_OFFSET)
276 #define MPC85xx_IRQ_RIO_BELL (10 + MPC85xx_OPENPIC_IRQ_OFFSET)
277 #define MPC85xx_IRQ_RIO_TX (11 + MPC85xx_OPENPIC_IRQ_OFFSET)
278 #define MPC85xx_IRQ_RIO_RX (12 + MPC85xx_OPENPIC_IRQ_OFFSET)
279 #define MPC85xx_IRQ_TSEC1_TX (13 + MPC85xx_OPENPIC_IRQ_OFFSET)
280 #define MPC85xx_IRQ_TSEC1_RX (14 + MPC85xx_OPENPIC_IRQ_OFFSET)
281 #define MPC85xx_IRQ_TSEC3_TX (15 + MPC85xx_OPENPIC_IRQ_OFFSET)
282 #define MPC85xx_IRQ_TSEC3_RX (16 + MPC85xx_OPENPIC_IRQ_OFFSET)
283 #define MPC85xx_IRQ_TSEC3_ERROR (17 + MPC85xx_OPENPIC_IRQ_OFFSET)
284 #define MPC85xx_IRQ_TSEC1_ERROR (18 + MPC85xx_OPENPIC_IRQ_OFFSET)
285 #define MPC85xx_IRQ_TSEC2_TX (19 + MPC85xx_OPENPIC_IRQ_OFFSET)
286 #define MPC85xx_IRQ_TSEC2_RX (20 + MPC85xx_OPENPIC_IRQ_OFFSET)
287 #define MPC85xx_IRQ_TSEC4_TX (21 + MPC85xx_OPENPIC_IRQ_OFFSET)
288 #define MPC85xx_IRQ_TSEC4_RX (22 + MPC85xx_OPENPIC_IRQ_OFFSET)
289 #define MPC85xx_IRQ_TSEC4_ERROR (23 + MPC85xx_OPENPIC_IRQ_OFFSET)
290 #define MPC85xx_IRQ_TSEC2_ERROR (24 + MPC85xx_OPENPIC_IRQ_OFFSET)
291 #define MPC85xx_IRQ_FEC (25 + MPC85xx_OPENPIC_IRQ_OFFSET)
292 #define MPC85xx_IRQ_DUART (26 + MPC85xx_OPENPIC_IRQ_OFFSET)
293 #define MPC85xx_IRQ_IIC1 (27 + MPC85xx_OPENPIC_IRQ_OFFSET)
294 #define MPC85xx_IRQ_PERFMON (28 + MPC85xx_OPENPIC_IRQ_OFFSET)
295 #define MPC85xx_IRQ_SEC2 (29 + MPC85xx_OPENPIC_IRQ_OFFSET)
296 #define MPC85xx_IRQ_CPM (30 + MPC85xx_OPENPIC_IRQ_OFFSET)
298 /* The 12 external interrupt lines */
299 #define MPC85xx_IRQ_EXT0 (48 + MPC85xx_OPENPIC_IRQ_OFFSET)
300 #define MPC85xx_IRQ_EXT1 (49 + MPC85xx_OPENPIC_IRQ_OFFSET)
301 #define MPC85xx_IRQ_EXT2 (50 + MPC85xx_OPENPIC_IRQ_OFFSET)
302 #define MPC85xx_IRQ_EXT3 (51 + MPC85xx_OPENPIC_IRQ_OFFSET)
303 #define MPC85xx_IRQ_EXT4 (52 + MPC85xx_OPENPIC_IRQ_OFFSET)
304 #define MPC85xx_IRQ_EXT5 (53 + MPC85xx_OPENPIC_IRQ_OFFSET)
305 #define MPC85xx_IRQ_EXT6 (54 + MPC85xx_OPENPIC_IRQ_OFFSET)
306 #define MPC85xx_IRQ_EXT7 (55 + MPC85xx_OPENPIC_IRQ_OFFSET)
307 #define MPC85xx_IRQ_EXT8 (56 + MPC85xx_OPENPIC_IRQ_OFFSET)
308 #define MPC85xx_IRQ_EXT9 (57 + MPC85xx_OPENPIC_IRQ_OFFSET)
309 #define MPC85xx_IRQ_EXT10 (58 + MPC85xx_OPENPIC_IRQ_OFFSET)
310 #define MPC85xx_IRQ_EXT11 (59 + MPC85xx_OPENPIC_IRQ_OFFSET)
312 /* CPM related interrupts */
313 #define SIU_INT_ERROR ((uint)0x00+CPM_IRQ_OFFSET)
314 #define SIU_INT_I2C ((uint)0x01+CPM_IRQ_OFFSET)
315 #define SIU_INT_SPI ((uint)0x02+CPM_IRQ_OFFSET)
316 #define SIU_INT_RISC ((uint)0x03+CPM_IRQ_OFFSET)
317 #define SIU_INT_SMC1 ((uint)0x04+CPM_IRQ_OFFSET)
318 #define SIU_INT_SMC2 ((uint)0x05+CPM_IRQ_OFFSET)
319 #define SIU_INT_USB ((uint)0x0b+CPM_IRQ_OFFSET)
320 #define SIU_INT_TIMER1 ((uint)0x0c+CPM_IRQ_OFFSET)
321 #define SIU_INT_TIMER2 ((uint)0x0d+CPM_IRQ_OFFSET)
322 #define SIU_INT_TIMER3 ((uint)0x0e+CPM_IRQ_OFFSET)
323 #define SIU_INT_TIMER4 ((uint)0x0f+CPM_IRQ_OFFSET)
324 #define SIU_INT_FCC1 ((uint)0x20+CPM_IRQ_OFFSET)
325 #define SIU_INT_FCC2 ((uint)0x21+CPM_IRQ_OFFSET)
326 #define SIU_INT_FCC3 ((uint)0x22+CPM_IRQ_OFFSET)
327 #define SIU_INT_MCC1 ((uint)0x24+CPM_IRQ_OFFSET)
328 #define SIU_INT_MCC2 ((uint)0x25+CPM_IRQ_OFFSET)
329 #define SIU_INT_SCC1 ((uint)0x28+CPM_IRQ_OFFSET)
330 #define SIU_INT_SCC2 ((uint)0x29+CPM_IRQ_OFFSET)
331 #define SIU_INT_SCC3 ((uint)0x2a+CPM_IRQ_OFFSET)
332 #define SIU_INT_SCC4 ((uint)0x2b+CPM_IRQ_OFFSET)
333 #define SIU_INT_PC15 ((uint)0x30+CPM_IRQ_OFFSET)
334 #define SIU_INT_PC14 ((uint)0x31+CPM_IRQ_OFFSET)
335 #define SIU_INT_PC13 ((uint)0x32+CPM_IRQ_OFFSET)
336 #define SIU_INT_PC12 ((uint)0x33+CPM_IRQ_OFFSET)
337 #define SIU_INT_PC11 ((uint)0x34+CPM_IRQ_OFFSET)
338 #define SIU_INT_PC10 ((uint)0x35+CPM_IRQ_OFFSET)
339 #define SIU_INT_PC9 ((uint)0x36+CPM_IRQ_OFFSET)
340 #define SIU_INT_PC8 ((uint)0x37+CPM_IRQ_OFFSET)
341 #define SIU_INT_PC7 ((uint)0x38+CPM_IRQ_OFFSET)
342 #define SIU_INT_PC6 ((uint)0x39+CPM_IRQ_OFFSET)
343 #define SIU_INT_PC5 ((uint)0x3a+CPM_IRQ_OFFSET)
344 #define SIU_INT_PC4 ((uint)0x3b+CPM_IRQ_OFFSET)
345 #define SIU_INT_PC3 ((uint)0x3c+CPM_IRQ_OFFSET)
346 #define SIU_INT_PC2 ((uint)0x3d+CPM_IRQ_OFFSET)
347 #define SIU_INT_PC1 ((uint)0x3e+CPM_IRQ_OFFSET)
348 #define SIU_INT_PC0 ((uint)0x3f+CPM_IRQ_OFFSET)
350 #elif defined(CONFIG_PPC_86xx)
351 #include <asm/mpc86xx.h>
353 #define NR_EPIC_INTS 48
355 #define NR_8259_INTS 16 /*ULI 1575 can route 12 interrupts */
357 #define NUM_8259_INTERRUPTS NR_8259_INTS
360 #define I8259_OFFSET 0
365 /* Internal IRQs on MPC86xx OpenPIC */
367 #ifndef MPC86xx_OPENPIC_IRQ_OFFSET
368 #define MPC86xx_OPENPIC_IRQ_OFFSET NR_8259_INTS
371 /* The 48 internal sources */
372 #define MPC86xx_IRQ_NULL ( 0 + MPC86xx_OPENPIC_IRQ_OFFSET)
373 #define MPC86xx_IRQ_MCM ( 1 + MPC86xx_OPENPIC_IRQ_OFFSET)
374 #define MPC86xx_IRQ_DDR ( 2 + MPC86xx_OPENPIC_IRQ_OFFSET)
375 #define MPC86xx_IRQ_LBC ( 3 + MPC86xx_OPENPIC_IRQ_OFFSET)
376 #define MPC86xx_IRQ_DMA0 ( 4 + MPC86xx_OPENPIC_IRQ_OFFSET)
377 #define MPC86xx_IRQ_DMA1 ( 5 + MPC86xx_OPENPIC_IRQ_OFFSET)
378 #define MPC86xx_IRQ_DMA2 ( 6 + MPC86xx_OPENPIC_IRQ_OFFSET)
379 #define MPC86xx_IRQ_DMA3 ( 7 + MPC86xx_OPENPIC_IRQ_OFFSET)
382 #define MPC86xx_IRQ_UART2 (12 + MPC86xx_OPENPIC_IRQ_OFFSET)
383 #define MPC86xx_IRQ_TSEC1_TX (13 + MPC86xx_OPENPIC_IRQ_OFFSET)
384 #define MPC86xx_IRQ_TSEC1_RX (14 + MPC86xx_OPENPIC_IRQ_OFFSET)
385 #define MPC86xx_IRQ_TSEC3_TX (15 + MPC86xx_OPENPIC_IRQ_OFFSET)
386 #define MPC86xx_IRQ_TSEC3_RX (16 + MPC86xx_OPENPIC_IRQ_OFFSET)
387 #define MPC86xx_IRQ_TSEC3_ERROR (17 + MPC86xx_OPENPIC_IRQ_OFFSET)
388 #define MPC86xx_IRQ_TSEC1_ERROR (18 + MPC86xx_OPENPIC_IRQ_OFFSET)
389 #define MPC86xx_IRQ_TSEC2_TX (19 + MPC86xx_OPENPIC_IRQ_OFFSET)
390 #define MPC86xx_IRQ_TSEC2_RX (20 + MPC86xx_OPENPIC_IRQ_OFFSET)
391 #define MPC86xx_IRQ_TSEC4_TX (21 + MPC86xx_OPENPIC_IRQ_OFFSET)
392 #define MPC86xx_IRQ_TSEC4_RX (22 + MPC86xx_OPENPIC_IRQ_OFFSET)
393 #define MPC86xx_IRQ_TSEC4_ERROR (23 + MPC86xx_OPENPIC_IRQ_OFFSET)
394 #define MPC86xx_IRQ_TSEC2_ERROR (24 + MPC86xx_OPENPIC_IRQ_OFFSET)
396 #define MPC86xx_IRQ_UART1 (26 + MPC86xx_OPENPIC_IRQ_OFFSET)
397 #define MPC86xx_IRQ_IIC (27 + MPC86xx_OPENPIC_IRQ_OFFSET)
398 #define MPC86xx_IRQ_PERFMON (28 + MPC86xx_OPENPIC_IRQ_OFFSET)
400 #define MPC86xx_IRQ_SRIO_ERROR (32 + MPC86xx_OPENPIC_IRQ_OFFSET)
401 #define MPC86xx_IRQ_SRIO_OUT_BELL (33 + MPC86xx_OPENPIC_IRQ_OFFSET)
402 #define MPC86xx_IRQ_SRIO_IN_BELL (34 + MPC86xx_OPENPIC_IRQ_OFFSET)
404 #define MPC86xx_IRQ_SRIO_OUT_MSG1 (37 + MPC86xx_OPENPIC_IRQ_OFFSET)
405 #define MPC86xx_IRQ_SRIO_IN_MSG1 (38 + MPC86xx_OPENPIC_IRQ_OFFSET)
406 #define MPC86xx_IRQ_SRIO_OUT_MSG2 (39 + MPC86xx_OPENPIC_IRQ_OFFSET)
407 #define MPC86xx_IRQ_SRIO_IN_MSG2 (40 + MPC86xx_OPENPIC_IRQ_OFFSET)
409 /* The 12 external interrupt lines */
410 #define MPC86xx_IRQ_EXT_BASE 48
411 #define MPC86xx_IRQ_EXT0 (0 + MPC86xx_IRQ_EXT_BASE \
412 + MPC86xx_OPENPIC_IRQ_OFFSET)
413 #define MPC86xx_IRQ_EXT1 (1 + MPC86xx_IRQ_EXT_BASE \
414 + MPC86xx_OPENPIC_IRQ_OFFSET)
415 #define MPC86xx_IRQ_EXT2 (2 + MPC86xx_IRQ_EXT_BASE \
416 + MPC86xx_OPENPIC_IRQ_OFFSET)
417 #define MPC86xx_IRQ_EXT3 (3 + MPC86xx_IRQ_EXT_BASE \
418 + MPC86xx_OPENPIC_IRQ_OFFSET)
419 #define MPC86xx_IRQ_EXT4 (4 + MPC86xx_IRQ_EXT_BASE \
420 + MPC86xx_OPENPIC_IRQ_OFFSET)
421 #define MPC86xx_IRQ_EXT5 (5 + MPC86xx_IRQ_EXT_BASE \
422 + MPC86xx_OPENPIC_IRQ_OFFSET)
423 #define MPC86xx_IRQ_EXT6 (6 + MPC86xx_IRQ_EXT_BASE \
424 + MPC86xx_OPENPIC_IRQ_OFFSET)
425 #define MPC86xx_IRQ_EXT7 (7 + MPC86xx_IRQ_EXT_BASE \
426 + MPC86xx_OPENPIC_IRQ_OFFSET)
427 #define MPC86xx_IRQ_EXT8 (8 + MPC86xx_IRQ_EXT_BASE \
428 + MPC86xx_OPENPIC_IRQ_OFFSET)
429 #define MPC86xx_IRQ_EXT9 (9 + MPC86xx_IRQ_EXT_BASE \
430 + MPC86xx_OPENPIC_IRQ_OFFSET)
431 #define MPC86xx_IRQ_EXT10 (10 + MPC86xx_IRQ_EXT_BASE \
432 + MPC86xx_OPENPIC_IRQ_OFFSET)
433 #define MPC86xx_IRQ_EXT11 (11 + MPC86xx_IRQ_EXT_BASE \
434 + MPC86xx_OPENPIC_IRQ_OFFSET)
436 #else /* CONFIG_40x + CONFIG_8xx */
438 * this is the # irq's for all ppc arch's (pmac/chrp/prep)
439 * so it is the max of them all
442 #define __DO_IRQ_CANON 1
446 #define NUM_8259_INTERRUPTS 16
448 #else /* CONFIG_8260 */
450 /* The 8260 has an internal interrupt controller with a maximum of
451 * 64 IRQs. We will use NR_IRQs from above since it is large enough.
452 * Don't be confused by the 8260 documentation where they list an
453 * "interrupt number" and "interrupt vector". We are only interested
454 * in the interrupt vector. There are "reserved" holes where the
455 * vector number increases, but the interrupt number in the table does not.
456 * (Document errata updates have fixed this...make sure you have up to
457 * date processor documentation -- Dan).
460 #ifndef CPM_IRQ_OFFSET
461 #define CPM_IRQ_OFFSET 0
464 #define NR_CPM_INTS 64
466 #define SIU_INT_ERROR ((uint)0x00 + CPM_IRQ_OFFSET)
467 #define SIU_INT_I2C ((uint)0x01 + CPM_IRQ_OFFSET)
468 #define SIU_INT_SPI ((uint)0x02 + CPM_IRQ_OFFSET)
469 #define SIU_INT_RISC ((uint)0x03 + CPM_IRQ_OFFSET)
470 #define SIU_INT_SMC1 ((uint)0x04 + CPM_IRQ_OFFSET)
471 #define SIU_INT_SMC2 ((uint)0x05 + CPM_IRQ_OFFSET)
472 #define SIU_INT_IDMA1 ((uint)0x06 + CPM_IRQ_OFFSET)
473 #define SIU_INT_IDMA2 ((uint)0x07 + CPM_IRQ_OFFSET)
474 #define SIU_INT_IDMA3 ((uint)0x08 + CPM_IRQ_OFFSET)
475 #define SIU_INT_IDMA4 ((uint)0x09 + CPM_IRQ_OFFSET)
476 #define SIU_INT_SDMA ((uint)0x0a + CPM_IRQ_OFFSET)
477 #define SIU_INT_USB ((uint)0x0b + CPM_IRQ_OFFSET)
478 #define SIU_INT_TIMER1 ((uint)0x0c + CPM_IRQ_OFFSET)
479 #define SIU_INT_TIMER2 ((uint)0x0d + CPM_IRQ_OFFSET)
480 #define SIU_INT_TIMER3 ((uint)0x0e + CPM_IRQ_OFFSET)
481 #define SIU_INT_TIMER4 ((uint)0x0f + CPM_IRQ_OFFSET)
482 #define SIU_INT_TMCNT ((uint)0x10 + CPM_IRQ_OFFSET)
483 #define SIU_INT_PIT ((uint)0x11 + CPM_IRQ_OFFSET)
484 #define SIU_INT_PCI ((uint)0x12 + CPM_IRQ_OFFSET)
485 #define SIU_INT_IRQ1 ((uint)0x13 + CPM_IRQ_OFFSET)
486 #define SIU_INT_IRQ2 ((uint)0x14 + CPM_IRQ_OFFSET)
487 #define SIU_INT_IRQ3 ((uint)0x15 + CPM_IRQ_OFFSET)
488 #define SIU_INT_IRQ4 ((uint)0x16 + CPM_IRQ_OFFSET)
489 #define SIU_INT_IRQ5 ((uint)0x17 + CPM_IRQ_OFFSET)
490 #define SIU_INT_IRQ6 ((uint)0x18 + CPM_IRQ_OFFSET)
491 #define SIU_INT_IRQ7 ((uint)0x19 + CPM_IRQ_OFFSET)
492 #define SIU_INT_FCC1 ((uint)0x20 + CPM_IRQ_OFFSET)
493 #define SIU_INT_FCC2 ((uint)0x21 + CPM_IRQ_OFFSET)
494 #define SIU_INT_FCC3 ((uint)0x22 + CPM_IRQ_OFFSET)
495 #define SIU_INT_MCC1 ((uint)0x24 + CPM_IRQ_OFFSET)
496 #define SIU_INT_MCC2 ((uint)0x25 + CPM_IRQ_OFFSET)
497 #define SIU_INT_SCC1 ((uint)0x28 + CPM_IRQ_OFFSET)
498 #define SIU_INT_SCC2 ((uint)0x29 + CPM_IRQ_OFFSET)
499 #define SIU_INT_SCC3 ((uint)0x2a + CPM_IRQ_OFFSET)
500 #define SIU_INT_SCC4 ((uint)0x2b + CPM_IRQ_OFFSET)
501 #define SIU_INT_PC15 ((uint)0x30 + CPM_IRQ_OFFSET)
502 #define SIU_INT_PC14 ((uint)0x31 + CPM_IRQ_OFFSET)
503 #define SIU_INT_PC13 ((uint)0x32 + CPM_IRQ_OFFSET)
504 #define SIU_INT_PC12 ((uint)0x33 + CPM_IRQ_OFFSET)
505 #define SIU_INT_PC11 ((uint)0x34 + CPM_IRQ_OFFSET)
506 #define SIU_INT_PC10 ((uint)0x35 + CPM_IRQ_OFFSET)
507 #define SIU_INT_PC9 ((uint)0x36 + CPM_IRQ_OFFSET)
508 #define SIU_INT_PC8 ((uint)0x37 + CPM_IRQ_OFFSET)
509 #define SIU_INT_PC7 ((uint)0x38 + CPM_IRQ_OFFSET)
510 #define SIU_INT_PC6 ((uint)0x39 + CPM_IRQ_OFFSET)
511 #define SIU_INT_PC5 ((uint)0x3a + CPM_IRQ_OFFSET)
512 #define SIU_INT_PC4 ((uint)0x3b + CPM_IRQ_OFFSET)
513 #define SIU_INT_PC3 ((uint)0x3c + CPM_IRQ_OFFSET)
514 #define SIU_INT_PC2 ((uint)0x3d + CPM_IRQ_OFFSET)
515 #define SIU_INT_PC1 ((uint)0x3e + CPM_IRQ_OFFSET)
516 #define SIU_INT_PC0 ((uint)0x3f + CPM_IRQ_OFFSET)
518 #endif /* CONFIG_8260 */
522 #define NR_MASK_WORDS ((NR_IRQS + 31) / 32)
523 /* pedantic: these are long because they are used with set_bit --RR */
524 extern unsigned long ppc_cached_irq_mask[NR_MASK_WORDS];
525 extern atomic_t ppc_n_lost_interrupts;
527 #define virt_irq_create_mapping(x) (x)
532 * Because many systems have two overlapping names spaces for
533 * interrupts (ISA and XICS for example), and the ISA interrupts
534 * have historically not been easy to renumber, we allow ISA
535 * interrupts to take values 0 - 15, and shift up the remaining
536 * interrupts by 0x10.
538 #define NUM_ISA_INTERRUPTS 0x10
539 extern int __irq_offset_value;
541 static inline int irq_offset_up(int irq)
543 return(irq + __irq_offset_value);
546 static inline int irq_offset_down(int irq)
548 return(irq - __irq_offset_value);
551 static inline int irq_offset_value(void)
553 return __irq_offset_value;
556 #ifdef __DO_IRQ_CANON
557 extern int ppc_do_canonicalize_irqs;
559 #define ppc_do_canonicalize_irqs 0
562 static __inline__ int irq_canonicalize(int irq)
564 if (ppc_do_canonicalize_irqs && irq == 2)
569 extern int distribute_irqs;
574 #define __ARCH_HAS_DO_SOFTIRQ
576 extern void __do_softirq(void);
578 #ifdef CONFIG_IRQSTACKS
580 * Per-cpu stacks for handling hard and soft interrupts.
582 extern struct thread_info *hardirq_ctx[NR_CPUS];
583 extern struct thread_info *softirq_ctx[NR_CPUS];
585 extern void irq_ctx_init(void);
586 extern void call_do_softirq(struct thread_info *tp);
587 extern int call___do_IRQ(int irq, struct pt_regs *regs,
588 struct thread_info *tp);
591 #define irq_ctx_init()
593 #endif /* CONFIG_IRQSTACKS */
595 extern void do_IRQ(struct pt_regs *regs);
597 #endif /* _ASM_IRQ_H */
598 #endif /* __KERNEL__ */