5 files changed, 139 insertions, 28 deletions

diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index f2492ecf0824..db60539bf67a 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -20,8 +20,8 @@
 #include <linux/agp_backend.h>
 #include <linux/log2.h>
 
-#include <asm-parisc/parisc-device.h>
-#include <asm-parisc/ropes.h>
+#include <asm/parisc-device.h>
+#include <asm/ropes.h>
 
 #include "agp.h"
 
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/rtc/Kconfig b/drivers/rtc/Kconfig
index f660ef3e5b29..814f49fde530 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -610,6 +610,14 @@ config RTC_DRV_RS5C313
         help
           If you say yes here you get support for the Ricoh RS5C313 RTC chips.
 
+config RTC_DRV_PARISC
+        tristate "PA-RISC firmware RTC support"
+        depends on PARISC
+        help
+          Say Y or M here to enable RTC support on PA-RISC systems using
+          firmware calls. If you do not know what you are doing, you should
+          just say Y.
+
 config RTC_DRV_PPC
        tristate "PowerPC machine dependent RTC support"
        depends on PPC
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index d05928b3ca94..d6a9ac7176ea 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -51,6 +51,7 @@ obj-$(CONFIG_RTC_DRV_PCF8563)	+= rtc-pcf8563.o
 obj-$(CONFIG_RTC_DRV_PCF8583)   += rtc-pcf8583.o
 obj-$(CONFIG_RTC_DRV_PL030)     += rtc-pl030.o
 obj-$(CONFIG_RTC_DRV_PL031)     += rtc-pl031.o
+obj-$(CONFIG_RTC_DRV_PARISC)    += rtc-parisc.o
 obj-$(CONFIG_RTC_DRV_PPC)       += rtc-ppc.o
 obj-$(CONFIG_RTC_DRV_R9701)     += rtc-r9701.o
 obj-$(CONFIG_RTC_DRV_RS5C313)   += rtc-rs5c313.o
diff --git a/drivers/rtc/rtc-parisc.c b/drivers/rtc/rtc-parisc.c
new file mode 100644
index 000000000000..346d633655e7
--- /dev/null
+++ b/drivers/rtc/rtc-parisc.c
@@ -0,0 +1,111 @@
+/* rtc-parisc: RTC for HP PA-RISC firmware
+ *
+ * Copyright (C) 2008 Kyle McMartin <kyle@mcmartin.ca>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/platform_device.h>
+
+#include <asm/rtc.h>
+
+/* as simple as can be, and no simpler. */
+struct parisc_rtc {
+        struct rtc_device *rtc;
+        spinlock_t lock;
+};
+
+static int parisc_get_time(struct device *dev, struct rtc_time *tm)
+{
+        struct parisc_rtc *p = dev_get_drvdata(dev);
+        unsigned long flags, ret;
+
+        spin_lock_irqsave(&p->lock, flags);
+        ret = get_rtc_time(tm);
+        spin_unlock_irqrestore(&p->lock, flags);
+
+        if (ret & RTC_BATT_BAD)
+                return -EOPNOTSUPP;
+
+        return 0;
+}
+
+static int parisc_set_time(struct device *dev, struct rtc_time *tm)
+{
+        struct parisc_rtc *p = dev_get_drvdata(dev);
+        unsigned long flags, ret;
+
+        spin_lock_irqsave(&p->lock, flags);
+        ret = set_rtc_time(tm);
+        spin_unlock_irqrestore(&p->lock, flags);
+
+        if (ret < 0)
+                return -EOPNOTSUPP;
+
+        return 0;
+}
+
+static const struct rtc_class_ops parisc_rtc_ops = {
+        .read_time = parisc_get_time,
+        .set_time = parisc_set_time,
+};
+
+static int __devinit parisc_rtc_probe(struct platform_device *dev)
+{
+        struct parisc_rtc *p;
+
+        p = kzalloc(sizeof (*p), GFP_KERNEL);
+        if (!p)
+                return -ENOMEM;
+
+        spin_lock_init(&p->lock);
+
+        p->rtc = rtc_device_register("rtc-parisc", &dev->dev, &parisc_rtc_ops,
+                                        THIS_MODULE);
+        if (IS_ERR(p->rtc)) {
+                int err = PTR_ERR(p->rtc);
+                kfree(p);
+                return err;
+        }
+
+        platform_set_drvdata(dev, p);
+
+        return 0;
+}
+
+static int __devexit parisc_rtc_remove(struct platform_device *dev)
+{
+        struct parisc_rtc *p = platform_get_drvdata(dev);
+
+        rtc_device_unregister(p->rtc);
+        kfree(p);
+
+        return 0;
+}
+
+static struct platform_driver parisc_rtc_driver = {
+        .driver = {
+                .name = "rtc-parisc",
+                .owner = THIS_MODULE,
+        },
+        .probe = parisc_rtc_probe,
+        .remove = __devexit_p(parisc_rtc_remove),
+};
+
+static int __init parisc_rtc_init(void)
+{
+        return platform_driver_register(&parisc_rtc_driver);
+}
+
+static void __exit parisc_rtc_fini(void)
+{
+        platform_driver_unregister(&parisc_rtc_driver);
+}
+
+module_init(parisc_rtc_init);
+module_exit(parisc_rtc_fini);
+
+MODULE_AUTHOR("Kyle McMartin <kyle@mcmartin.ca>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("HP PA-RISC RTC driver");