diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/xics.c')
-rw-r--r-- | arch/powerpc/platforms/pseries/xics.c | 79 |
1 files changed, 40 insertions, 39 deletions
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 01fea46c0335..ec8fe22047b7 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c | |||
@@ -204,33 +204,33 @@ static int get_irq_server(unsigned int virq, const struct cpumask *cpumask, | |||
204 | 204 | ||
205 | static void xics_unmask_irq(struct irq_data *d) | 205 | static void xics_unmask_irq(struct irq_data *d) |
206 | { | 206 | { |
207 | unsigned int irq; | 207 | unsigned int hwirq; |
208 | int call_status; | 208 | int call_status; |
209 | int server; | 209 | int server; |
210 | 210 | ||
211 | pr_devel("xics: unmask virq %d\n", d->irq); | 211 | pr_devel("xics: unmask virq %d\n", d->irq); |
212 | 212 | ||
213 | irq = (unsigned int)irq_map[d->irq].hwirq; | 213 | hwirq = (unsigned int)irq_map[d->irq].hwirq; |
214 | pr_devel(" -> map to hwirq 0x%x\n", irq); | 214 | pr_devel(" -> map to hwirq 0x%x\n", hwirq); |
215 | if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS) | 215 | if (hwirq == XICS_IPI || hwirq == XICS_IRQ_SPURIOUS) |
216 | return; | 216 | return; |
217 | 217 | ||
218 | server = get_irq_server(d->irq, d->affinity, 0); | 218 | server = get_irq_server(d->irq, d->affinity, 0); |
219 | 219 | ||
220 | call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, server, | 220 | call_status = rtas_call(ibm_set_xive, 3, 1, NULL, hwirq, server, |
221 | DEFAULT_PRIORITY); | 221 | DEFAULT_PRIORITY); |
222 | if (call_status != 0) { | 222 | if (call_status != 0) { |
223 | printk(KERN_ERR | 223 | printk(KERN_ERR |
224 | "%s: ibm_set_xive irq %u server %x returned %d\n", | 224 | "%s: ibm_set_xive irq %u server %x returned %d\n", |
225 | __func__, irq, server, call_status); | 225 | __func__, hwirq, server, call_status); |
226 | return; | 226 | return; |
227 | } | 227 | } |
228 | 228 | ||
229 | /* Now unmask the interrupt (often a no-op) */ | 229 | /* Now unmask the interrupt (often a no-op) */ |
230 | call_status = rtas_call(ibm_int_on, 1, 1, NULL, irq); | 230 | call_status = rtas_call(ibm_int_on, 1, 1, NULL, hwirq); |
231 | if (call_status != 0) { | 231 | if (call_status != 0) { |
232 | printk(KERN_ERR "%s: ibm_int_on irq=%u returned %d\n", | 232 | printk(KERN_ERR "%s: ibm_int_on irq=%u returned %d\n", |
233 | __func__, irq, call_status); | 233 | __func__, hwirq, call_status); |
234 | return; | 234 | return; |
235 | } | 235 | } |
236 | } | 236 | } |
@@ -250,46 +250,46 @@ static unsigned int xics_startup(struct irq_data *d) | |||
250 | return 0; | 250 | return 0; |
251 | } | 251 | } |
252 | 252 | ||
253 | static void xics_mask_real_irq(struct irq_data *d) | 253 | static void xics_mask_real_irq(unsigned int hwirq) |
254 | { | 254 | { |
255 | int call_status; | 255 | int call_status; |
256 | 256 | ||
257 | if (d->irq == XICS_IPI) | 257 | if (hwirq == XICS_IPI) |
258 | return; | 258 | return; |
259 | 259 | ||
260 | call_status = rtas_call(ibm_int_off, 1, 1, NULL, d->irq); | 260 | call_status = rtas_call(ibm_int_off, 1, 1, NULL, hwirq); |
261 | if (call_status != 0) { | 261 | if (call_status != 0) { |
262 | printk(KERN_ERR "%s: ibm_int_off irq=%u returned %d\n", | 262 | printk(KERN_ERR "%s: ibm_int_off irq=%u returned %d\n", |
263 | __func__, d->irq, call_status); | 263 | __func__, hwirq, call_status); |
264 | return; | 264 | return; |
265 | } | 265 | } |
266 | 266 | ||
267 | /* Have to set XIVE to 0xff to be able to remove a slot */ | 267 | /* Have to set XIVE to 0xff to be able to remove a slot */ |
268 | call_status = rtas_call(ibm_set_xive, 3, 1, NULL, d->irq, | 268 | call_status = rtas_call(ibm_set_xive, 3, 1, NULL, hwirq, |
269 | default_server, 0xff); | 269 | default_server, 0xff); |
270 | if (call_status != 0) { | 270 | if (call_status != 0) { |
271 | printk(KERN_ERR "%s: ibm_set_xive(0xff) irq=%u returned %d\n", | 271 | printk(KERN_ERR "%s: ibm_set_xive(0xff) irq=%u returned %d\n", |
272 | __func__, d->irq, call_status); | 272 | __func__, hwirq, call_status); |
273 | return; | 273 | return; |
274 | } | 274 | } |
275 | } | 275 | } |
276 | 276 | ||
277 | static void xics_mask_irq(struct irq_data *d) | 277 | static void xics_mask_irq(struct irq_data *d) |
278 | { | 278 | { |
279 | unsigned int irq; | 279 | unsigned int hwirq; |
280 | 280 | ||
281 | pr_devel("xics: mask virq %d\n", d->irq); | 281 | pr_devel("xics: mask virq %d\n", d->irq); |
282 | 282 | ||
283 | irq = (unsigned int)irq_map[d->irq].hwirq; | 283 | hwirq = (unsigned int)irq_map[d->irq].hwirq; |
284 | if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS) | 284 | if (hwirq == XICS_IPI || hwirq == XICS_IRQ_SPURIOUS) |
285 | return; | 285 | return; |
286 | xics_mask_real_irq(d); | 286 | xics_mask_real_irq(hwirq); |
287 | } | 287 | } |
288 | 288 | ||
289 | static void xics_mask_unknown_vec(unsigned int vec) | 289 | static void xics_mask_unknown_vec(unsigned int vec) |
290 | { | 290 | { |
291 | printk(KERN_ERR "Interrupt %u (real) is invalid, disabling it.\n", vec); | 291 | printk(KERN_ERR "Interrupt %u (real) is invalid, disabling it.\n", vec); |
292 | xics_mask_real_irq(irq_get_irq_data(vec)); | 292 | xics_mask_real_irq(vec); |
293 | } | 293 | } |
294 | 294 | ||
295 | static inline unsigned int xics_xirr_vector(unsigned int xirr) | 295 | static inline unsigned int xics_xirr_vector(unsigned int xirr) |
@@ -373,37 +373,37 @@ static unsigned char pop_cppr(void) | |||
373 | 373 | ||
374 | static void xics_eoi_direct(struct irq_data *d) | 374 | static void xics_eoi_direct(struct irq_data *d) |
375 | { | 375 | { |
376 | unsigned int irq = (unsigned int)irq_map[d->irq].hwirq; | 376 | unsigned int hwirq = (unsigned int)irq_map[d->irq].hwirq; |
377 | 377 | ||
378 | iosync(); | 378 | iosync(); |
379 | direct_xirr_info_set((pop_cppr() << 24) | irq); | 379 | direct_xirr_info_set((pop_cppr() << 24) | hwirq); |
380 | } | 380 | } |
381 | 381 | ||
382 | static void xics_eoi_lpar(struct irq_data *d) | 382 | static void xics_eoi_lpar(struct irq_data *d) |
383 | { | 383 | { |
384 | unsigned int irq = (unsigned int)irq_map[d->irq].hwirq; | 384 | unsigned int hwirq = (unsigned int)irq_map[d->irq].hwirq; |
385 | 385 | ||
386 | iosync(); | 386 | iosync(); |
387 | lpar_xirr_info_set((pop_cppr() << 24) | irq); | 387 | lpar_xirr_info_set((pop_cppr() << 24) | hwirq); |
388 | } | 388 | } |
389 | 389 | ||
390 | static int | 390 | static int |
391 | xics_set_affinity(struct irq_data *d, const struct cpumask *cpumask, bool force) | 391 | xics_set_affinity(struct irq_data *d, const struct cpumask *cpumask, bool force) |
392 | { | 392 | { |
393 | unsigned int irq; | 393 | unsigned int hwirq; |
394 | int status; | 394 | int status; |
395 | int xics_status[2]; | 395 | int xics_status[2]; |
396 | int irq_server; | 396 | int irq_server; |
397 | 397 | ||
398 | irq = (unsigned int)irq_map[d->irq].hwirq; | 398 | hwirq = (unsigned int)irq_map[d->irq].hwirq; |
399 | if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS) | 399 | if (hwirq == XICS_IPI || hwirq == XICS_IRQ_SPURIOUS) |
400 | return -1; | 400 | return -1; |
401 | 401 | ||
402 | status = rtas_call(ibm_get_xive, 1, 3, xics_status, irq); | 402 | status = rtas_call(ibm_get_xive, 1, 3, xics_status, hwirq); |
403 | 403 | ||
404 | if (status) { | 404 | if (status) { |
405 | printk(KERN_ERR "%s: ibm,get-xive irq=%u returns %d\n", | 405 | printk(KERN_ERR "%s: ibm,get-xive irq=%u returns %d\n", |
406 | __func__, irq, status); | 406 | __func__, hwirq, status); |
407 | return -1; | 407 | return -1; |
408 | } | 408 | } |
409 | 409 | ||
@@ -418,11 +418,11 @@ xics_set_affinity(struct irq_data *d, const struct cpumask *cpumask, bool force) | |||
418 | } | 418 | } |
419 | 419 | ||
420 | status = rtas_call(ibm_set_xive, 3, 1, NULL, | 420 | status = rtas_call(ibm_set_xive, 3, 1, NULL, |
421 | irq, irq_server, xics_status[1]); | 421 | hwirq, irq_server, xics_status[1]); |
422 | 422 | ||
423 | if (status) { | 423 | if (status) { |
424 | printk(KERN_ERR "%s: ibm,set-xive irq=%u returns %d\n", | 424 | printk(KERN_ERR "%s: ibm,set-xive irq=%u returns %d\n", |
425 | __func__, irq, status); | 425 | __func__, hwirq, status); |
426 | return -1; | 426 | return -1; |
427 | } | 427 | } |
428 | 428 | ||
@@ -470,8 +470,8 @@ static int xics_host_map(struct irq_host *h, unsigned int virq, | |||
470 | /* Insert the interrupt mapping into the radix tree for fast lookup */ | 470 | /* Insert the interrupt mapping into the radix tree for fast lookup */ |
471 | irq_radix_revmap_insert(xics_host, virq, hw); | 471 | irq_radix_revmap_insert(xics_host, virq, hw); |
472 | 472 | ||
473 | irq_to_desc(virq)->status |= IRQ_LEVEL; | 473 | irq_set_status_flags(virq, IRQ_LEVEL); |
474 | set_irq_chip_and_handler(virq, xics_irq_chip, handle_fasteoi_irq); | 474 | irq_set_chip_and_handler(virq, xics_irq_chip, handle_fasteoi_irq); |
475 | return 0; | 475 | return 0; |
476 | } | 476 | } |
477 | 477 | ||
@@ -600,7 +600,7 @@ static void xics_request_ipi(void) | |||
600 | * IPIs are marked IRQF_DISABLED as they must run with irqs | 600 | * IPIs are marked IRQF_DISABLED as they must run with irqs |
601 | * disabled | 601 | * disabled |
602 | */ | 602 | */ |
603 | set_irq_handler(ipi, handle_percpu_irq); | 603 | irq_set_handler(ipi, handle_percpu_irq); |
604 | if (firmware_has_feature(FW_FEATURE_LPAR)) | 604 | if (firmware_has_feature(FW_FEATURE_LPAR)) |
605 | rc = request_irq(ipi, xics_ipi_action_lpar, | 605 | rc = request_irq(ipi, xics_ipi_action_lpar, |
606 | IRQF_DISABLED|IRQF_PERCPU, "IPI", NULL); | 606 | IRQF_DISABLED|IRQF_PERCPU, "IPI", NULL); |
@@ -874,7 +874,7 @@ void xics_kexec_teardown_cpu(int secondary) | |||
874 | void xics_migrate_irqs_away(void) | 874 | void xics_migrate_irqs_away(void) |
875 | { | 875 | { |
876 | int cpu = smp_processor_id(), hw_cpu = hard_smp_processor_id(); | 876 | int cpu = smp_processor_id(), hw_cpu = hard_smp_processor_id(); |
877 | unsigned int irq, virq; | 877 | int virq; |
878 | 878 | ||
879 | /* If we used to be the default server, move to the new "boot_cpuid" */ | 879 | /* If we used to be the default server, move to the new "boot_cpuid" */ |
880 | if (hw_cpu == default_server) | 880 | if (hw_cpu == default_server) |
@@ -892,6 +892,7 @@ void xics_migrate_irqs_away(void) | |||
892 | for_each_irq(virq) { | 892 | for_each_irq(virq) { |
893 | struct irq_desc *desc; | 893 | struct irq_desc *desc; |
894 | struct irq_chip *chip; | 894 | struct irq_chip *chip; |
895 | unsigned int hwirq; | ||
895 | int xics_status[2]; | 896 | int xics_status[2]; |
896 | int status; | 897 | int status; |
897 | unsigned long flags; | 898 | unsigned long flags; |
@@ -901,9 +902,9 @@ void xics_migrate_irqs_away(void) | |||
901 | continue; | 902 | continue; |
902 | if (irq_map[virq].host != xics_host) | 903 | if (irq_map[virq].host != xics_host) |
903 | continue; | 904 | continue; |
904 | irq = (unsigned int)irq_map[virq].hwirq; | 905 | hwirq = (unsigned int)irq_map[virq].hwirq; |
905 | /* We need to get IPIs still. */ | 906 | /* We need to get IPIs still. */ |
906 | if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS) | 907 | if (hwirq == XICS_IPI || hwirq == XICS_IRQ_SPURIOUS) |
907 | continue; | 908 | continue; |
908 | 909 | ||
909 | desc = irq_to_desc(virq); | 910 | desc = irq_to_desc(virq); |
@@ -912,16 +913,16 @@ void xics_migrate_irqs_away(void) | |||
912 | if (desc == NULL || desc->action == NULL) | 913 | if (desc == NULL || desc->action == NULL) |
913 | continue; | 914 | continue; |
914 | 915 | ||
915 | chip = get_irq_desc_chip(desc); | 916 | chip = irq_desc_get_chip(desc); |
916 | if (chip == NULL || chip->irq_set_affinity == NULL) | 917 | if (chip == NULL || chip->irq_set_affinity == NULL) |
917 | continue; | 918 | continue; |
918 | 919 | ||
919 | raw_spin_lock_irqsave(&desc->lock, flags); | 920 | raw_spin_lock_irqsave(&desc->lock, flags); |
920 | 921 | ||
921 | status = rtas_call(ibm_get_xive, 1, 3, xics_status, irq); | 922 | status = rtas_call(ibm_get_xive, 1, 3, xics_status, hwirq); |
922 | if (status) { | 923 | if (status) { |
923 | printk(KERN_ERR "%s: ibm,get-xive irq=%u returns %d\n", | 924 | printk(KERN_ERR "%s: ibm,get-xive irq=%u returns %d\n", |
924 | __func__, irq, status); | 925 | __func__, hwirq, status); |
925 | goto unlock; | 926 | goto unlock; |
926 | } | 927 | } |
927 | 928 | ||