diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries')
-rw-r--r-- | arch/powerpc/platforms/pseries/msi.c | 44 |
1 files changed, 17 insertions, 27 deletions
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c index 18ff4626d74e..8ab5add4ac82 100644 --- a/arch/powerpc/platforms/pseries/msi.c +++ b/arch/powerpc/platforms/pseries/msi.c | |||
@@ -336,26 +336,6 @@ out: | |||
336 | return request; | 336 | return request; |
337 | } | 337 | } |
338 | 338 | ||
339 | static int rtas_msi_check_device(struct pci_dev *pdev, int nvec, int type) | ||
340 | { | ||
341 | int quota, rc; | ||
342 | |||
343 | if (type == PCI_CAP_ID_MSIX) | ||
344 | rc = check_req_msix(pdev, nvec); | ||
345 | else | ||
346 | rc = check_req_msi(pdev, nvec); | ||
347 | |||
348 | if (rc) | ||
349 | return rc; | ||
350 | |||
351 | quota = msi_quota_for_device(pdev, nvec); | ||
352 | |||
353 | if (quota && quota < nvec) | ||
354 | return quota; | ||
355 | |||
356 | return 0; | ||
357 | } | ||
358 | |||
359 | static int check_msix_entries(struct pci_dev *pdev) | 339 | static int check_msix_entries(struct pci_dev *pdev) |
360 | { | 340 | { |
361 | struct msi_desc *entry; | 341 | struct msi_desc *entry; |
@@ -397,15 +377,24 @@ static void rtas_hack_32bit_msi_gen2(struct pci_dev *pdev) | |||
397 | static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec_in, int type) | 377 | static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec_in, int type) |
398 | { | 378 | { |
399 | struct pci_dn *pdn; | 379 | struct pci_dn *pdn; |
400 | int hwirq, virq, i, rc; | 380 | int hwirq, virq, i, quota, rc; |
401 | struct msi_desc *entry; | 381 | struct msi_desc *entry; |
402 | struct msi_msg msg; | 382 | struct msi_msg msg; |
403 | int nvec = nvec_in; | 383 | int nvec = nvec_in; |
404 | int use_32bit_msi_hack = 0; | 384 | int use_32bit_msi_hack = 0; |
405 | 385 | ||
406 | pdn = pci_get_pdn(pdev); | 386 | if (type == PCI_CAP_ID_MSIX) |
407 | if (!pdn) | 387 | rc = check_req_msix(pdev, nvec); |
408 | return -ENODEV; | 388 | else |
389 | rc = check_req_msi(pdev, nvec); | ||
390 | |||
391 | if (rc) | ||
392 | return rc; | ||
393 | |||
394 | quota = msi_quota_for_device(pdev, nvec); | ||
395 | |||
396 | if (quota && quota < nvec) | ||
397 | return quota; | ||
409 | 398 | ||
410 | if (type == PCI_CAP_ID_MSIX && check_msix_entries(pdev)) | 399 | if (type == PCI_CAP_ID_MSIX && check_msix_entries(pdev)) |
411 | return -EINVAL; | 400 | return -EINVAL; |
@@ -416,12 +405,14 @@ static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec_in, int type) | |||
416 | */ | 405 | */ |
417 | if (type == PCI_CAP_ID_MSIX) { | 406 | if (type == PCI_CAP_ID_MSIX) { |
418 | int m = roundup_pow_of_two(nvec); | 407 | int m = roundup_pow_of_two(nvec); |
419 | int quota = msi_quota_for_device(pdev, m); | 408 | quota = msi_quota_for_device(pdev, m); |
420 | 409 | ||
421 | if (quota >= m) | 410 | if (quota >= m) |
422 | nvec = m; | 411 | nvec = m; |
423 | } | 412 | } |
424 | 413 | ||
414 | pdn = pci_get_pdn(pdev); | ||
415 | |||
425 | /* | 416 | /* |
426 | * Try the new more explicit firmware interface, if that fails fall | 417 | * Try the new more explicit firmware interface, if that fails fall |
427 | * back to the old interface. The old interface is known to never | 418 | * back to the old interface. The old interface is known to never |
@@ -485,7 +476,7 @@ again: | |||
485 | irq_set_msi_desc(virq, entry); | 476 | irq_set_msi_desc(virq, entry); |
486 | 477 | ||
487 | /* Read config space back so we can restore after reset */ | 478 | /* Read config space back so we can restore after reset */ |
488 | read_msi_msg(virq, &msg); | 479 | __read_msi_msg(entry, &msg); |
489 | entry->msg = msg; | 480 | entry->msg = msg; |
490 | } | 481 | } |
491 | 482 | ||
@@ -526,7 +517,6 @@ static int rtas_msi_init(void) | |||
526 | WARN_ON(ppc_md.setup_msi_irqs); | 517 | WARN_ON(ppc_md.setup_msi_irqs); |
527 | ppc_md.setup_msi_irqs = rtas_setup_msi_irqs; | 518 | ppc_md.setup_msi_irqs = rtas_setup_msi_irqs; |
528 | ppc_md.teardown_msi_irqs = rtas_teardown_msi_irqs; | 519 | ppc_md.teardown_msi_irqs = rtas_teardown_msi_irqs; |
529 | ppc_md.msi_check_device = rtas_msi_check_device; | ||
530 | 520 | ||
531 | WARN_ON(ppc_md.pci_irq_fixup); | 521 | WARN_ON(ppc_md.pci_irq_fixup); |
532 | ppc_md.pci_irq_fixup = rtas_msi_pci_irq_fixup; | 522 | ppc_md.pci_irq_fixup = rtas_msi_pci_irq_fixup; |