Remove obsolete #include <linux/config.h>

[cascardo/linux.git] / arch / powerpc / kernel / irq.c

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 771a59c..525baab 100644 (file)
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -38,7 +38,6 @@
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
 #include <linux/timex.h>
-#include <linux/config.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
@@ -47,6 +46,7 @@
 #include <linux/cpumask.h>
 #include <linux/profile.h>
 #include <linux/bitops.h>
+#include <linux/pci.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -119,8 +119,8 @@ int show_interrupts(struct seq_file *p, void *v)
 #else
                seq_printf(p, "%10u ", kstat_irqs(i));
 #endif /* CONFIG_SMP */
-               if (desc->handler)
-                       seq_printf(p, " %s ", desc->handler->typename);
+               if (desc->chip)
+                       seq_printf(p, " %s ", desc->chip->typename);
                else
                        seq_puts(p, "  None      ");
                seq_printf(p, "%s", (desc->status & IRQ_LEVEL) ? "Level " : "Edge  ");
@@ -163,13 +163,13 @@ void fixup_irqs(cpumask_t map)
                if (irq_desc[irq].status & IRQ_PER_CPU)
                        continue;
 
-               cpus_and(mask, irq_affinity[irq], map);
+               cpus_and(mask, irq_desc[irq].affinity, map);
                if (any_online_cpu(mask) == NR_CPUS) {
                        printk("Breaking affinity for irq %i\n", irq);
                        mask = map;
                }
-               if (irq_desc[irq].handler->set_affinity)
-                       irq_desc[irq].handler->set_affinity(irq, mask);
+               if (irq_desc[irq].chip->set_affinity)
+                       irq_desc[irq].chip->set_affinity(irq, mask);
                else if (irq_desc[irq].action && !(warned++))
                        printk("Cannot set affinity for irq %i\n", irq);
        }
@@ -272,18 +272,26 @@ unsigned int virt_irq_to_real_map[NR_IRQS];
  * Don't use virtual irqs 0, 1, 2 for devices.
  * The pcnet32 driver considers interrupt numbers < 2 to be invalid,
  * and 2 is the XICS IPI interrupt.
- * We limit virtual irqs to 17 less than NR_IRQS so that when we
- * offset them by 16 (to reserve the first 16 for ISA interrupts)
- * we don't end up with an interrupt number >= NR_IRQS.
+ * We limit virtual irqs to __irq_offet_value less than virt_irq_max so
+ * that when we offset them we don't end up with an interrupt
+ * number >= virt_irq_max.
  */
 #define MIN_VIRT_IRQ   3
-#define MAX_VIRT_IRQ   (NR_IRQS - NUM_ISA_INTERRUPTS - 1)
-#define NR_VIRT_IRQS   (MAX_VIRT_IRQ - MIN_VIRT_IRQ + 1)
+
+unsigned int virt_irq_max;
+static unsigned int max_virt_irq;
+static unsigned int nr_virt_irqs;
 
 void
 virt_irq_init(void)
 {
        int i;
+
+       if ((virt_irq_max == 0) || (virt_irq_max > (NR_IRQS - 1)))
+               virt_irq_max = NR_IRQS - 1;
+       max_virt_irq = virt_irq_max - __irq_offset_value;
+       nr_virt_irqs = max_virt_irq - MIN_VIRT_IRQ + 1;
+
        for (i = 0; i < NR_IRQS; i++)
                virt_irq_to_real_map[i] = UNDEFINED_IRQ;
 }
@@ -308,17 +316,17 @@ int virt_irq_create_mapping(unsigned int real_irq)
                return real_irq;
        }
 
-       /* map to a number between MIN_VIRT_IRQ and MAX_VIRT_IRQ */
+       /* map to a number between MIN_VIRT_IRQ and max_virt_irq */
        virq = real_irq;
-       if (virq > MAX_VIRT_IRQ)
-               virq = (virq % NR_VIRT_IRQS) + MIN_VIRT_IRQ;
+       if (virq > max_virt_irq)
+               virq = (virq % nr_virt_irqs) + MIN_VIRT_IRQ;
 
        /* search for this number or a free slot */
        first_virq = virq;
        while (virt_irq_to_real_map[virq] != UNDEFINED_IRQ) {
                if (virt_irq_to_real_map[virq] == real_irq)
                        return virq;
-               if (++virq > MAX_VIRT_IRQ)
+               if (++virq > max_virt_irq)
                        virq = MIN_VIRT_IRQ;
                if (virq == first_virq)
                        goto nospace;   /* oops, no free slots */
@@ -330,8 +338,8 @@ int virt_irq_create_mapping(unsigned int real_irq)
  nospace:
        if (!warned) {
                printk(KERN_CRIT "Interrupt table is full\n");
-               printk(KERN_CRIT "Increase NR_IRQS (currently %d) "
-                      "in your kernel sources and rebuild.\n", NR_IRQS);
+               printk(KERN_CRIT "Increase virt_irq_max (currently %d) "
+                      "in your kernel sources and rebuild.\n", virt_irq_max);
                warned = 1;
        }
        return NO_IRQ;
@@ -349,8 +357,8 @@ unsigned int real_irq_to_virt_slowpath(unsigned int real_irq)
 
        virq = real_irq;
 
-       if (virq > MAX_VIRT_IRQ)
-               virq = (virq % NR_VIRT_IRQS) + MIN_VIRT_IRQ;
+       if (virq > max_virt_irq)
+               virq = (virq % nr_virt_irqs) + MIN_VIRT_IRQ;
 
        first_virq = virq;
 
@@ -360,7 +368,7 @@ unsigned int real_irq_to_virt_slowpath(unsigned int real_irq)
 
                virq++;
 
-               if (virq >= MAX_VIRT_IRQ)
+               if (virq >= max_virt_irq)
                        virq = 0;
 
        } while (first_virq != virq);
@@ -371,15 +379,15 @@ unsigned int real_irq_to_virt_slowpath(unsigned int real_irq)
 #endif /* CONFIG_PPC64 */
 
 #ifdef CONFIG_IRQSTACKS
-struct thread_info *softirq_ctx[NR_CPUS];
-struct thread_info *hardirq_ctx[NR_CPUS];
+struct thread_info *softirq_ctx[NR_CPUS] __read_mostly;
+struct thread_info *hardirq_ctx[NR_CPUS] __read_mostly;
 
 void irq_ctx_init(void)
 {
        struct thread_info *tp;
        int i;
 
-       for_each_cpu(i) {
+       for_each_possible_cpu(i) {
                memset((void *)softirq_ctx[i], 0, THREAD_SIZE);
                tp = softirq_ctx[i];
                tp->cpu = i;
@@ -428,6 +436,30 @@ void do_softirq(void)
 }
 EXPORT_SYMBOL(do_softirq);
 
+#ifdef CONFIG_PCI_MSI
+int pci_enable_msi(struct pci_dev * pdev)
+{
+       if (ppc_md.enable_msi)
+               return ppc_md.enable_msi(pdev);
+       else
+               return -1;
+}
+
+void pci_disable_msi(struct pci_dev * pdev)
+{
+       if (ppc_md.disable_msi)
+               ppc_md.disable_msi(pdev);
+}
+
+void pci_scan_msi_device(struct pci_dev *dev) {}
+int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec) {return -1;}
+void pci_disable_msix(struct pci_dev *dev) {}
+void msi_remove_pci_irq_vectors(struct pci_dev *dev) {}
+void disable_msi_mode(struct pci_dev *dev, int pos, int type) {}
+void pci_no_msi(void) {}
+
+#endif
+
 #ifdef CONFIG_PPC64
 static int __init setup_noirqdistrib(char *str)
 {