diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-05-01 13:02:50 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2009-05-01 13:02:50 -0400 |
commit | 4420471f14b79f2a42e4603be7794ea49b68bca4 (patch) | |
tree | d391d25458bc0aa86dcf2823fd6c1464883b0533 /drivers | |
parent | 15e957d08dd4a841359cfec59ecb74041e0097aa (diff) | |
parent | e0e42142bab96404de535cceb85d6533d5ad7942 (diff) |
Merge branch 'x86/apic' into irq/numa
Conflicts:
arch/x86/kernel/apic/io_apic.c
Merge reason: non-trivial interaction between ongoing work in io_apic.c
and the NUMA migration feature in the irq tree.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/pci/intel-iommu.c | 9 | ||||
-rw-r--r-- | drivers/pci/intr_remapping.c | 39 |
2 files changed, 25 insertions, 23 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 001b328adf80..9ce8f0764bef 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c | |||
@@ -1968,15 +1968,6 @@ static int __init init_dmars(void) | |||
1968 | } | 1968 | } |
1969 | } | 1969 | } |
1970 | 1970 | ||
1971 | #ifdef CONFIG_INTR_REMAP | ||
1972 | if (!intr_remapping_enabled) { | ||
1973 | ret = enable_intr_remapping(0); | ||
1974 | if (ret) | ||
1975 | printk(KERN_ERR | ||
1976 | "IOMMU: enable interrupt remapping failed\n"); | ||
1977 | } | ||
1978 | #endif | ||
1979 | |||
1980 | /* | 1971 | /* |
1981 | * For each rmrr | 1972 | * For each rmrr |
1982 | * for each dev attached to rmrr | 1973 | * for each dev attached to rmrr |
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c index 9eff36a293e0..3a0cb0bb0593 100644 --- a/drivers/pci/intr_remapping.c +++ b/drivers/pci/intr_remapping.c | |||
@@ -15,6 +15,14 @@ static struct ioapic_scope ir_ioapic[MAX_IO_APICS]; | |||
15 | static int ir_ioapic_num; | 15 | static int ir_ioapic_num; |
16 | int intr_remapping_enabled; | 16 | int intr_remapping_enabled; |
17 | 17 | ||
18 | static int disable_intremap; | ||
19 | static __init int setup_nointremap(char *str) | ||
20 | { | ||
21 | disable_intremap = 1; | ||
22 | return 0; | ||
23 | } | ||
24 | early_param("nointremap", setup_nointremap); | ||
25 | |||
18 | struct irq_2_iommu { | 26 | struct irq_2_iommu { |
19 | struct intel_iommu *iommu; | 27 | struct intel_iommu *iommu; |
20 | u16 irte_index; | 28 | u16 irte_index; |
@@ -420,20 +428,6 @@ static void iommu_set_intr_remapping(struct intel_iommu *iommu, int mode) | |||
420 | readl, (sts & DMA_GSTS_IRTPS), sts); | 428 | readl, (sts & DMA_GSTS_IRTPS), sts); |
421 | spin_unlock_irqrestore(&iommu->register_lock, flags); | 429 | spin_unlock_irqrestore(&iommu->register_lock, flags); |
422 | 430 | ||
423 | if (mode == 0) { | ||
424 | spin_lock_irqsave(&iommu->register_lock, flags); | ||
425 | |||
426 | /* enable comaptiblity format interrupt pass through */ | ||
427 | cmd = iommu->gcmd | DMA_GCMD_CFI; | ||
428 | iommu->gcmd |= DMA_GCMD_CFI; | ||
429 | writel(cmd, iommu->reg + DMAR_GCMD_REG); | ||
430 | |||
431 | IOMMU_WAIT_OP(iommu, DMAR_GSTS_REG, | ||
432 | readl, (sts & DMA_GSTS_CFIS), sts); | ||
433 | |||
434 | spin_unlock_irqrestore(&iommu->register_lock, flags); | ||
435 | } | ||
436 | |||
437 | /* | 431 | /* |
438 | * global invalidation of interrupt entry cache before enabling | 432 | * global invalidation of interrupt entry cache before enabling |
439 | * interrupt-remapping. | 433 | * interrupt-remapping. |
@@ -513,6 +507,23 @@ end: | |||
513 | spin_unlock_irqrestore(&iommu->register_lock, flags); | 507 | spin_unlock_irqrestore(&iommu->register_lock, flags); |
514 | } | 508 | } |
515 | 509 | ||
510 | int __init intr_remapping_supported(void) | ||
511 | { | ||
512 | struct dmar_drhd_unit *drhd; | ||
513 | |||
514 | if (disable_intremap) | ||
515 | return 0; | ||
516 | |||
517 | for_each_drhd_unit(drhd) { | ||
518 | struct intel_iommu *iommu = drhd->iommu; | ||
519 | |||
520 | if (!ecap_ir_support(iommu->ecap)) | ||
521 | return 0; | ||
522 | } | ||
523 | |||
524 | return 1; | ||
525 | } | ||
526 | |||
516 | int __init enable_intr_remapping(int eim) | 527 | int __init enable_intr_remapping(int eim) |
517 | { | 528 | { |
518 | struct dmar_drhd_unit *drhd; | 529 | struct dmar_drhd_unit *drhd; |