x86: printk kernel version in WARN_ON and other dump_stack users

[linux-2.6] / arch / x86 / kernel / io_apic_64.c

diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c
index b3c2d268d70889dd4e218e51b83e16189fe2e2ee..953328b55a30503c58f2f8b3ed0f30939ff4047c 100644 (file)
--- a/arch/x86/kernel/io_apic_64.c
+++ b/arch/x86/kernel/io_apic_64.c
@@ -31,6 +31,7 @@
 #include <linux/sysdev.h>
 #include <linux/msi.h>
 #include <linux/htirq.h>
+#include <linux/dmar.h>
 #ifdef CONFIG_ACPI
 #include <acpi/acpi_bus.h>
 #endif
@@ -2031,8 +2032,64 @@ void arch_teardown_msi_irq(unsigned int irq)
        destroy_irq(irq);
 }
 
-#endif /* CONFIG_PCI_MSI */
+#ifdef CONFIG_DMAR
+#ifdef CONFIG_SMP
+static void dmar_msi_set_affinity(unsigned int irq, cpumask_t mask)
+{
+       struct irq_cfg *cfg = irq_cfg + irq;
+       struct msi_msg msg;
+       unsigned int dest;
+       cpumask_t tmp;
+
+       cpus_and(tmp, mask, cpu_online_map);
+       if (cpus_empty(tmp))
+               return;
+
+       if (assign_irq_vector(irq, mask))
+               return;
+
+       cpus_and(tmp, cfg->domain, mask);
+       dest = cpu_mask_to_apicid(tmp);
+
+       dmar_msi_read(irq, &msg);
+
+       msg.data &= ~MSI_DATA_VECTOR_MASK;
+       msg.data |= MSI_DATA_VECTOR(cfg->vector);
+       msg.address_lo &= ~MSI_ADDR_DEST_ID_MASK;
+       msg.address_lo |= MSI_ADDR_DEST_ID(dest);
+
+       dmar_msi_write(irq, &msg);
+       irq_desc[irq].affinity = mask;
+}
+#endif /* CONFIG_SMP */
+
+struct irq_chip dmar_msi_type = {
+       .name = "DMAR_MSI",
+       .unmask = dmar_msi_unmask,
+       .mask = dmar_msi_mask,
+       .ack = ack_apic_edge,
+#ifdef CONFIG_SMP
+       .set_affinity = dmar_msi_set_affinity,
+#endif
+       .retrigger = ioapic_retrigger_irq,
+};
+
+int arch_setup_dmar_msi(unsigned int irq)
+{
+       int ret;
+       struct msi_msg msg;
+
+       ret = msi_compose_msg(NULL, irq, &msg);
+       if (ret < 0)
+               return ret;
+       dmar_msi_write(irq, &msg);
+       set_irq_chip_and_handler_name(irq, &dmar_msi_type, handle_edge_irq,
+               "edge");
+       return 0;
+}
+#endif
 
+#endif /* CONFIG_PCI_MSI */
 /*
  * Hypertransport interrupt support
  */