parisc: unify CCIO_COLLECT_STATS implementation

Make it behave in the same manner as SBA_COLLECT_STATS, further
clean ups pending.

diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index b30e38f3a50d736d95d591594c04f9aeae7c62ea..dcc1e9958d2f9bb0b0fd3625c43ed9eaf806bfd2 100644 (file)
--- 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;
        }