diff options
| author | John Keller <jpk@sgi.com> | 2006-11-06 21:10:50 +0100 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2006-12-07 19:50:09 +0100 |
| commit | c69577711a8fd232e6b309c3e99f9a8f96f63082 (patch) | |
| tree | 7b70542ab00109a4f4018fe4d34ea7a89857d0b0 /arch | |
| parent | [IA64] sparse cleanups (diff) | |
| download | linux-c69577711a8fd232e6b309c3e99f9a8f96f63082.tar.xz linux-c69577711a8fd232e6b309c3e99f9a8f96f63082.zip | |
[IA64] SN: Correctly update smp_affinty mask
On Altix systems, the /proc/irq/nn/smp_affinity mask is not being setup
at device iniitalization, or updated after an interrupt redirection.
This patch resolves those issues.
Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ia64/sn/kernel/irq.c | 18 | ||||
| -rw-r--r-- | arch/ia64/sn/kernel/msi_sn.c | 4 |
2 files changed, 15 insertions, 7 deletions
diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c index 0b49459a878a..8c5bee01eaa2 100644 --- a/arch/ia64/sn/kernel/irq.c +++ b/arch/ia64/sn/kernel/irq.c @@ -117,7 +117,10 @@ struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info, nasid_t nasid, int slice) { int vector; + int cpuid; +#ifdef CONFIG_SMP int cpuphys; +#endif int64_t bridge; int local_widget, status; nasid_t local_nasid; @@ -146,7 +149,6 @@ struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info, vector = sn_irq_info->irq_irq; /* Free the old PROM new_irq_info structure */ sn_intr_free(local_nasid, local_widget, new_irq_info); - /* Update kernels new_irq_info with new target info */ unregister_intr_pda(new_irq_info); /* allocate a new PROM new_irq_info struct */ @@ -160,8 +162,10 @@ struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info, return NULL; } - cpuphys = nasid_slice_to_cpuid(nasid, slice); - new_irq_info->irq_cpuid = cpuphys; + /* Update kernels new_irq_info with new target info */ + cpuid = nasid_slice_to_cpuid(new_irq_info->irq_nasid, + new_irq_info->irq_slice); + new_irq_info->irq_cpuid = cpuid; register_intr_pda(new_irq_info); pci_provider = sn_pci_provider[new_irq_info->irq_bridge_type]; @@ -180,6 +184,7 @@ struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info, call_rcu(&sn_irq_info->rcu, sn_irq_info_free); #ifdef CONFIG_SMP + cpuphys = cpu_physical_id(cpuid); set_irq_affinity_info((vector & 0xff), cpuphys, 0); #endif @@ -299,6 +304,9 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info) nasid_t nasid = sn_irq_info->irq_nasid; int slice = sn_irq_info->irq_slice; int cpu = nasid_slice_to_cpuid(nasid, slice); +#ifdef CONFIG_SMP + int cpuphys; +#endif pci_dev_get(pci_dev); sn_irq_info->irq_cpuid = cpu; @@ -311,6 +319,10 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info) spin_unlock(&sn_irq_info_lock); register_intr_pda(sn_irq_info); +#ifdef CONFIG_SMP + cpuphys = cpu_physical_id(cpu); + set_irq_affinity_info(sn_irq_info->irq_irq, cpuphys, 0); +#endif } void sn_irq_unfixup(struct pci_dev *pci_dev) diff --git a/arch/ia64/sn/kernel/msi_sn.c b/arch/ia64/sn/kernel/msi_sn.c index 6ffd1f850d41..b3a435fd70fb 100644 --- a/arch/ia64/sn/kernel/msi_sn.c +++ b/arch/ia64/sn/kernel/msi_sn.c @@ -136,10 +136,6 @@ int sn_setup_msi_irq(unsigned int irq, struct pci_dev *pdev) */ msg.data = 0x100 + irq; -#ifdef CONFIG_SMP - set_irq_affinity_info(irq, sn_irq_info->irq_cpuid, 0); -#endif - write_msi_msg(irq, &msg); set_irq_chip_and_handler(irq, &sn_msi_chip, handle_edge_irq); |