6 files changed, 37 insertions, 36 deletions

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b30e38f3a50d..dcc1e9958d2f 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -66,15 +66,8 @@
 #undef DEBUG_CCIO_RUN_SG
 
 #ifdef CONFIG_PROC_FS
-/*
- * CCIO_SEARCH_TIME can help measure how fast the bitmap search is.
- * impacts performance though - ditch it if you don't use it.
- */
-#define CCIO_SEARCH_TIME
-#undef CCIO_MAP_STATS
-#else
-#undef CCIO_SEARCH_TIME
-#undef CCIO_MAP_STATS
+/* depends on proc fs support. But costs CPU performance. */
+#undef CCIO_COLLECT_STATS
 #endif
 
 #include <linux/proc_fs.h>
@@ -239,12 +232,10 @@ struct ioc {
         u32 res_size;                   /* size of resource map in bytes */
         spinlock_t res_lock;
 
-#ifdef CCIO_SEARCH_TIME
+#ifdef CCIO_COLLECT_STATS
 #define CCIO_SEARCH_SAMPLE 0x100
         unsigned long avg_search[CCIO_SEARCH_SAMPLE];
         unsigned long avg_idx;            /* current index into avg_search */
-#endif
-#ifdef CCIO_MAP_STATS
         unsigned long used_pages;
         unsigned long msingle_calls;
         unsigned long msingle_pages;
@@ -351,7 +342,7 @@ ccio_alloc_range(struct ioc *ioc, struct device *dev, size_t size)
         unsigned int pages_needed = size >> IOVP_SHIFT;
         unsigned int res_idx;
         unsigned long boundary_size;
-#ifdef CCIO_SEARCH_TIME
+#ifdef CCIO_COLLECT_STATS
         unsigned long cr_start = mfctl(16);
 #endif
         
@@ -406,7 +397,7 @@ resource_found:
         DBG_RES("%s() res_idx %d res_hint: %d\n",
                 __func__, res_idx, ioc->res_hint);
 
-#ifdef CCIO_SEARCH_TIME
+#ifdef CCIO_COLLECT_STATS
         {
                 unsigned long cr_end = mfctl(16);
                 unsigned long tmp = cr_end - cr_start;
@@ -416,7 +407,7 @@ resource_found:
         ioc->avg_search[ioc->avg_idx++] = cr_start;
         ioc->avg_idx &= CCIO_SEARCH_SAMPLE - 1;
 #endif
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
         ioc->used_pages += pages_needed;
 #endif
         /* 
@@ -452,7 +443,7 @@ ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
         DBG_RES("%s():  res_idx: %d pages_mapped %d\n", 
                 __func__, res_idx, pages_mapped);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
         ioc->used_pages -= pages_mapped;
 #endif
 
@@ -764,7 +755,7 @@ ccio_map_single(struct device *dev, void *addr, size_t size,
         size = ALIGN(size + offset, IOVP_SIZE);
         spin_lock_irqsave(&ioc->res_lock, flags);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
         ioc->msingle_calls++;
         ioc->msingle_pages += size >> IOVP_SHIFT;
 #endif
@@ -828,7 +819,7 @@ ccio_unmap_single(struct device *dev, dma_addr_t iova, size_t size,
 
         spin_lock_irqsave(&ioc->res_lock, flags);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
         ioc->usingle_calls++;
         ioc->usingle_pages += size >> IOVP_SHIFT;
 #endif
@@ -894,7 +885,7 @@ ccio_free_consistent(struct device *dev, size_t size, void *cpu_addr,
 */
 #define PIDE_FLAG 0x80000000UL
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
 #define IOMMU_MAP_STATS
 #endif
 #include "iommu-helpers.h"
@@ -938,7 +929,7 @@ ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
         
         spin_lock_irqsave(&ioc->res_lock, flags);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
         ioc->msg_calls++;
 #endif
 
@@ -997,13 +988,13 @@ ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
         DBG_RUN_SG("%s() START %d entries,  %08lx,%x\n",
                 __func__, nents, sg_virt_addr(sglist), sglist->length);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
         ioc->usg_calls++;
 #endif
 
         while(sg_dma_len(sglist) && nents--) {
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
                 ioc->usg_pages += sg_dma_len(sglist) >> PAGE_SHIFT;
 #endif
                 ccio_unmap_single(dev, sg_dma_address(sglist),
@@ -1048,7 +1039,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
                 len += seq_printf(m, "IO PDIR size    : %d bytes (%d entries)\n",
                                total_pages * 8, total_pages);
 
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
                 len += seq_printf(m, "IO PDIR entries : %ld free  %ld used (%d%%)\n",
                                   total_pages - ioc->used_pages, ioc->used_pages,
                                   (int)(ioc->used_pages * 100 / total_pages));
@@ -1057,7 +1048,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
                 len += seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n", 
                                   ioc->res_size, total_pages);
 
-#ifdef CCIO_SEARCH_TIME
+#ifdef CCIO_COLLECT_STATS
                 min = max = ioc->avg_search[0];
                 for(j = 0; j < CCIO_SEARCH_SAMPLE; ++j) {
                         avg += ioc->avg_search[j];
@@ -1070,7 +1061,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
                 len += seq_printf(m, "  Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
                                   min, avg, max);
 #endif
-#ifdef CCIO_MAP_STATS
+#ifdef CCIO_COLLECT_STATS
                 len += seq_printf(m, "pci_map_single(): %8ld calls  %8ld pages (avg %d/1000)\n",
                                   ioc->msingle_calls, ioc->msingle_pages,
                                   (int)((ioc->msingle_pages * 1000)/ioc->msingle_calls));
@@ -1088,7 +1079,7 @@ static int ccio_proc_info(struct seq_file *m, void *p)
                 len += seq_printf(m, "pci_unmap_sg()  : %8ld calls  %8ld pages (avg %d/1000)\n\n\n",
                                   ioc->usg_calls, ioc->usg_pages,
                                   (int)((ioc->usg_pages * 1000)/ioc->usg_calls));
-#endif  /* CCIO_MAP_STATS */
+#endif  /* CCIO_COLLECT_STATS */
 
                 ioc = ioc->next;
         }
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index fd56128525d1..3bc54b30c3a1 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -298,7 +298,8 @@ struct pci_port_ops dino_port_ops = {
 
 static void dino_disable_irq(unsigned int irq)
 {
-        struct dino_device *dino_dev = irq_desc[irq].chip_data;
+        struct irq_desc *desc = irq_to_desc(irq);
+        struct dino_device *dino_dev = desc->chip_data;
         int local_irq = gsc_find_local_irq(irq, dino_dev->global_irq, DINO_LOCAL_IRQS);
 
         DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, irq);
@@ -310,7 +311,8 @@ static void dino_disable_irq(unsigned int irq)
 
 static void dino_enable_irq(unsigned int irq)
 {
-        struct dino_device *dino_dev = irq_desc[irq].chip_data;
+        struct irq_desc *desc = irq_to_desc(irq);
+        struct dino_device *dino_dev = desc->chip_data;
         int local_irq = gsc_find_local_irq(irq, dino_dev->global_irq, DINO_LOCAL_IRQS);
         u32 tmp;
 
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 771cef592542..7891db50c483 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -346,10 +346,10 @@ static int __init eisa_probe(struct parisc_device *dev)
         }
         
         /* Reserve IRQ2 */
-        irq_desc[2].action = &irq2_action;
+        irq_to_desc(2)->action = &irq2_action;
         
         for (i = 0; i < 16; i++) {
-                irq_desc[i].chip = &eisa_interrupt_type;
+                irq_to_desc(i)->chip = &eisa_interrupt_type;
         }
         
         EISA_bus = 1;
diff --git a/drivers/parisc/gsc.c b/drivers/parisc/gsc.c
index f7d088b897ee..e76db9e4d504 100644
--- a/drivers/parisc/gsc.c
+++ b/drivers/parisc/gsc.c
@@ -108,7 +108,8 @@ int gsc_find_local_irq(unsigned int irq, int *global_irqs, int limit)
 
 static void gsc_asic_disable_irq(unsigned int irq)
 {
-        struct gsc_asic *irq_dev = irq_desc[irq].chip_data;
+        struct irq_desc *desc = irq_to_desc(irq);
+        struct gsc_asic *irq_dev = desc->chip_data;
         int local_irq = gsc_find_local_irq(irq, irq_dev->global_irq, 32);
         u32 imr;
 
@@ -123,7 +124,8 @@ static void gsc_asic_disable_irq(unsigned int irq)
 
 static void gsc_asic_enable_irq(unsigned int irq)
 {
-        struct gsc_asic *irq_dev = irq_desc[irq].chip_data;
+        struct irq_desc *desc = irq_to_desc(irq);
+        struct gsc_asic *irq_dev = desc->chip_data;
         int local_irq = gsc_find_local_irq(irq, irq_dev->global_irq, 32);
         u32 imr;
 
@@ -159,12 +161,14 @@ static struct hw_interrupt_type gsc_asic_interrupt_type = {
 int gsc_assign_irq(struct hw_interrupt_type *type, void *data)
 {
         static int irq = GSC_IRQ_BASE;
+        struct irq_desc *desc;
 
         if (irq > GSC_IRQ_MAX)
                 return NO_IRQ;
 
-        irq_desc[irq].chip = type;
-        irq_desc[irq].chip_data = data;
+        desc = irq_to_desc(irq);
+        desc->chip = type;
+        desc->chip_data = data;
         return irq++;
 }
 
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 6fb3f7979f21..7beffcab2745 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -619,7 +619,9 @@ iosapic_set_irt_data( struct vector_info *vi, u32 *dp0, u32 *dp1)
 
 static struct vector_info *iosapic_get_vector(unsigned int irq)
 {
-        return irq_desc[irq].chip_data;
+        struct irq_desc *desc = irq_to_desc(irq);
+
+        return desc->chip_data;
 }
 
 static void iosapic_disable_irq(unsigned int irq)
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index 1e8d2d17f04c..1e93c837514f 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -363,7 +363,9 @@ int superio_fixup_irq(struct pci_dev *pcidev)
 #endif
 
         for (i = 0; i < 16; i++) {
-                irq_desc[i].chip = &superio_interrupt_type;
+                struct irq_desc *desc = irq_to_desc(i);
+
+                desc->chip = &superio_interrupt_type;
         }
 
         /*