Merge master.kernel.org:/pub/scm/linux/kernel/git/willy/parisc-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/willy/parisc-2.6: (41 commits)
  [PARISC] Kill wall_jiffies use
  [PARISC] Honour "panic_on_oops" sysctl
  [PARISC] Fix fs/binfmt_som.c
  [PARISC] Export clear_user_page to modules
  [PARISC] Make DMA routines more stubby
  [PARISC] Define pci_get_legacy_ide_irq
  [PARISC] Fix CONFIG_DEBUG_SPINLOCK
  [PARISC] Fix HPUX compat compile with current GCC
  [PARISC] Fix iounmap compile warning
  [PARISC] Add support for Quicksilver AGPGART
  [PARISC] Move LBA and SBA register defines to the common ropes.h
  [PARISC] Create shared <asm/ropes.h> header
  [PARISC] Stash the lba_device in its struct device drvdata
  [PARISC] Generalize IS_ASTRO et al to take a parisc_device like
  [PARISC] Pretty print the name of the lba type on kernel boot
  [PARISC] Remove some obsolete comments and I checked that Reo is similar to Ike
  [PARISC] Add hardware found in the rp8400
  [PARISC] Allow nested interrupts
  [PARISC] Further updates to timer_interrupt()
  [PARISC] remove halftick and copy clocktick to local var (gcc can optimize usage)
  ...

8 files changed, 486 insertions, 348 deletions

diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig
index 22f8cf218cc6..c603bf291580 100644
--- a/drivers/char/agp/Kconfig
+++ b/drivers/char/agp/Kconfig
@@ -1,6 +1,6 @@
 config AGP
         tristate "/dev/agpgart (AGP Support)"
-        depends on ALPHA || IA64 || PPC || X86
+        depends on ALPHA || IA64 || PARISC || PPC || X86
         depends on PCI
         ---help---
           AGP (Accelerated Graphics Port) is a bus system mainly used to
@@ -122,6 +122,14 @@ config AGP_HP_ZX1
           This option gives you AGP GART support for the HP ZX1 chipset
           for IA64 processors.
 
+config AGP_PARISC
+        tristate "HP Quicksilver AGP support"
+        depends on AGP && PARISC && 64BIT
+        help
+          This option gives you AGP GART support for the HP Quicksilver
+          AGP bus adapter on HP PA-RISC machines (Ok, just on the C8000
+          workstation...)
+
 config AGP_ALPHA_CORE
         tristate "Alpha AGP support"
         depends on AGP && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL)
diff --git a/drivers/char/agp/Makefile b/drivers/char/agp/Makefile
index d33a22f2fa0b..3e581603d0a8 100644
--- a/drivers/char/agp/Makefile
+++ b/drivers/char/agp/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_AGP_AMD64)		+= amd64-agp.o
 obj-$(CONFIG_AGP_ALPHA_CORE)    += alpha-agp.o
 obj-$(CONFIG_AGP_EFFICEON)      += efficeon-agp.o
 obj-$(CONFIG_AGP_HP_ZX1)        += hp-agp.o
+obj-$(CONFIG_AGP_PARISC)        += parisc-agp.o
 obj-$(CONFIG_AGP_I460)          += i460-agp.o
 obj-$(CONFIG_AGP_INTEL)         += intel-agp.o
 obj-$(CONFIG_AGP_NVIDIA)        += nvidia-agp.o
diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
new file mode 100644
index 000000000000..17c50b0f83f0
--- /dev/null
+++ b/drivers/char/agp/parisc-agp.c
@@ -0,0 +1,416 @@
+/*
+ * HP Quicksilver AGP GART routines
+ *
+ * Copyright (c) 2006, Kyle McMartin <kyle@parisc-linux.org>
+ *
+ * Based on drivers/char/agpgart/hp-agp.c which is
+ * (c) Copyright 2002, 2003 Hewlett-Packard Development Company, L.P.
+ *      Bjorn Helgaas <bjorn.helgaas@hp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/klist.h>
+#include <linux/agp_backend.h>
+
+#include <asm-parisc/parisc-device.h>
+#include <asm-parisc/ropes.h>
+
+#include "agp.h"
+
+#define DRVNAME "quicksilver"
+#define DRVPFX  DRVNAME ": "
+
+#ifndef log2
+#define log2(x)         ffz(~(x))
+#endif
+
+#define AGP8X_MODE_BIT          3
+#define AGP8X_MODE              (1 << AGP8X_MODE_BIT)
+
+static struct _parisc_agp_info {
+        void __iomem *ioc_regs;
+        void __iomem *lba_regs;
+
+        int lba_cap_offset;
+
+        u64 *gatt;
+        u64 gatt_entries;
+
+        u64 gart_base;
+        u64 gart_size;
+
+        int io_page_size;
+        int io_pages_per_kpage;
+} parisc_agp_info;
+
+static struct gatt_mask parisc_agp_masks[] =
+{
+        {
+                .mask = SBA_PDIR_VALID_BIT,
+                .type = 0
+        }
+};
+
+static struct aper_size_info_fixed parisc_agp_sizes[] =
+{
+        {0, 0, 0},              /* filled in by parisc_agp_fetch_size() */
+};
+
+static int
+parisc_agp_fetch_size(void)
+{
+        int size;
+
+        size = parisc_agp_info.gart_size / MB(1);
+        parisc_agp_sizes[0].size = size;
+        agp_bridge->current_size = (void *) &parisc_agp_sizes[0];
+
+        return size;
+}
+
+static int
+parisc_agp_configure(void)
+{
+        struct _parisc_agp_info *info = &parisc_agp_info;
+
+        agp_bridge->gart_bus_addr = info->gart_base;
+        agp_bridge->capndx = info->lba_cap_offset;
+        agp_bridge->mode = readl(info->lba_regs+info->lba_cap_offset+PCI_AGP_STATUS);
+
+        return 0;
+}
+
+static void
+parisc_agp_tlbflush(struct agp_memory *mem)
+{
+        struct _parisc_agp_info *info = &parisc_agp_info;
+
+        writeq(info->gart_base | log2(info->gart_size), info->ioc_regs+IOC_PCOM);
+        readq(info->ioc_regs+IOC_PCOM); /* flush */
+}
+
+static int
+parisc_agp_create_gatt_table(struct agp_bridge_data *bridge)
+{
+        struct _parisc_agp_info *info = &parisc_agp_info;
+        int i;
+
+        for (i = 0; i < info->gatt_entries; i++) {
+                info->gatt[i] = (unsigned long)agp_bridge->scratch_page;
+        }
+
+        return 0;
+}
+
+static int
+parisc_agp_free_gatt_table(struct agp_bridge_data *bridge)
+{
+        struct _parisc_agp_info *info = &parisc_agp_info;
+
+        info->gatt[0] = SBA_AGPGART_COOKIE;
+
+        return 0;
+}
+
+static int
+parisc_agp_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
+{
+        struct _parisc_agp_info *info = &parisc_agp_info;
+        int i, k;
+        off_t j, io_pg_start;
+        int io_pg_count;
+
+        if (type != 0 || mem->type != 0) {
+                return -EINVAL;
+        }
+
+        io_pg_start = info->io_pages_per_kpage * pg_start;
+        io_pg_count = info->io_pages_per_kpage * mem->page_count;
+        if ((io_pg_start + io_pg_count) > info->gatt_entries) {
+                return -EINVAL;
+        }
+
+        j = io_pg_start;
+        while (j < (io_pg_start + io_pg_count)) {
+                if (info->gatt[j])
+                        return -EBUSY;
+                j++;
+        }
+
+        if (mem->is_flushed == FALSE) {
+                global_cache_flush();
+                mem->is_flushed = TRUE;
+        }
+
+        for (i = 0, j = io_pg_start; i < mem->page_count; i++) {
+                unsigned long paddr;
+
+                paddr = mem->memory[i];
+                for (k = 0;
+                     k < info->io_pages_per_kpage;
+                     k++, j++, paddr += info->io_page_size) {
+                        info->gatt[j] =
+                                agp_bridge->driver->mask_memory(agp_bridge,
+                                        paddr, type);
+                }
+        }
+
+        agp_bridge->driver->tlb_flush(mem);
+
+        return 0;
+}
+
+static int
+parisc_agp_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
+{
+        struct _parisc_agp_info *info = &parisc_agp_info;
+        int i, io_pg_start, io_pg_count;
+
+        if (type != 0 || mem->type != 0) {
+                return -EINVAL;
+        }
+
+        io_pg_start = info->io_pages_per_kpage * pg_start;
+        io_pg_count = info->io_pages_per_kpage * mem->page_count;
+        for (i = io_pg_start; i < io_pg_count + io_pg_start; i++) {
+                info->gatt[i] = agp_bridge->scratch_page;
+        }
+
+        agp_bridge->driver->tlb_flush(mem);
+        return 0;
+}
+
+static unsigned long
+parisc_agp_mask_memory(struct agp_bridge_data *bridge,
+                    unsigned long addr, int type)
+{
+        return SBA_PDIR_VALID_BIT | addr;
+}
+
+static void
+parisc_agp_enable(struct agp_bridge_data *bridge, u32 mode)
+{
+        struct _parisc_agp_info *info = &parisc_agp_info;
+        u32 command;
+
+        command = readl(info->lba_regs + info->lba_cap_offset + PCI_AGP_STATUS);
+
+        command = agp_collect_device_status(bridge, mode, command);
+        command |= 0x00000100;
+
+        writel(command, info->lba_regs + info->lba_cap_offset + PCI_AGP_COMMAND);
+
+        agp_device_command(command, (mode & AGP8X_MODE) != 0);
+}
+
+struct agp_bridge_driver parisc_agp_driver = {
+        .owner                  = THIS_MODULE,
+        .size_type              = FIXED_APER_SIZE,
+        .configure              = parisc_agp_configure,
+        .fetch_size             = parisc_agp_fetch_size,
+        .tlb_flush              = parisc_agp_tlbflush,
+        .mask_memory            = parisc_agp_mask_memory,
+        .masks                  = parisc_agp_masks,
+        .agp_enable             = parisc_agp_enable,
+        .cache_flush            = global_cache_flush,
+        .create_gatt_table      = parisc_agp_create_gatt_table,
+        .free_gatt_table        = parisc_agp_free_gatt_table,
+        .insert_memory          = parisc_agp_insert_memory,
+        .remove_memory          = parisc_agp_remove_memory,
+        .alloc_by_type          = agp_generic_alloc_by_type,
+        .free_by_type           = agp_generic_free_by_type,
+        .agp_alloc_page         = agp_generic_alloc_page,
+        .agp_destroy_page       = agp_generic_destroy_page,
+        .cant_use_aperture      = 1,
+};
+
+static int __init
+agp_ioc_init(void __iomem *ioc_regs)
+{
+        struct _parisc_agp_info *info = &parisc_agp_info;
+        u64 *iova_base, *io_pdir, io_tlb_ps;
+        int io_tlb_shift;
+
+        printk(KERN_INFO DRVPFX "IO PDIR shared with sba_iommu\n");
+
+        info->ioc_regs = ioc_regs;
+
+        io_tlb_ps = readq(info->ioc_regs+IOC_TCNFG);
+        switch (io_tlb_ps) {
+        case 0: io_tlb_shift = 12; break;
+        case 1: io_tlb_shift = 13; break;
+        case 2: io_tlb_shift = 14; break;
+        case 3: io_tlb_shift = 16; break;
+        default:
+                printk(KERN_ERR DRVPFX "Invalid IOTLB page size "
+                       "configuration 0x%llx\n", io_tlb_ps);
+                info->gatt = NULL;
+                info->gatt_entries = 0;
+                return -ENODEV;
+        }
+        info->io_page_size = 1 << io_tlb_shift;
+        info->io_pages_per_kpage = PAGE_SIZE / info->io_page_size;
+
+        iova_base = readq(info->ioc_regs+IOC_IBASE) & ~0x1;
+        info->gart_base = iova_base + PLUTO_IOVA_SIZE - PLUTO_GART_SIZE;
+
+        info->gart_size = PLUTO_GART_SIZE;
+        info->gatt_entries = info->gart_size / info->io_page_size;
+
+        io_pdir = phys_to_virt(readq(info->ioc_regs+IOC_PDIR_BASE));
+        info->gatt = &io_pdir[(PLUTO_IOVA_SIZE/2) >> PAGE_SHIFT];
+
+        if (info->gatt[0] != SBA_AGPGART_COOKIE) {
+                info->gatt = NULL;
+                info->gatt_entries = 0;
+                printk(KERN_ERR DRVPFX "No reserved IO PDIR entry found; "
+                       "GART disabled\n");
+                return -ENODEV;
+        }
+
+        return 0;
+}
+
+static int
+lba_find_capability(int cap)
+{
+        struct _parisc_agp_info *info = &parisc_agp_info;
+        u16 status;
+        u8 pos, id;
+        int ttl = 48;
+
+        status = readw(info->lba_regs + PCI_STATUS);
+        if (!(status & PCI_STATUS_CAP_LIST))
+                return 0;
+        pos = readb(info->lba_regs + PCI_CAPABILITY_LIST);
+        while (ttl-- && pos >= 0x40) {
+                pos &= ~3;
+                id = readb(info->lba_regs + pos + PCI_CAP_LIST_ID);
+                if (id == 0xff)
+                        break;
+                if (id == cap)
+                        return pos;
+                pos = readb(info->lba_regs + pos + PCI_CAP_LIST_NEXT);
+        }
+        return 0;
+}
+
+static int __init
+agp_lba_init(void __iomem *lba_hpa)
+{
+        struct _parisc_agp_info *info = &parisc_agp_info;
+        int cap;
+
+        info->lba_regs = lba_hpa;
+        info->lba_cap_offset = lba_find_capability(PCI_CAP_ID_AGP);
+
+        cap = readl(lba_hpa + info->lba_cap_offset) & 0xff;
+        if (cap != PCI_CAP_ID_AGP) {
+                printk(KERN_ERR DRVPFX "Invalid capability ID 0x%02x at 0x%x\n",
+                       cap, info->lba_cap_offset);
+                return -ENODEV;
+        }
+
+        return 0;
+}
+
+static int __init
+parisc_agp_setup(void __iomem *ioc_hpa, void __iomem *lba_hpa)
+{
+        struct pci_dev *fake_bridge_dev = NULL;
+        struct agp_bridge_data *bridge;
+        int error = 0;
+
+        fake_bridge_dev = kmalloc(sizeof (struct pci_dev), GFP_KERNEL);
+        if (!fake_bridge_dev) {
+                error = -ENOMEM;
+                goto fail;
+        }
+
+        error = agp_ioc_init(ioc_hpa);
+        if (error)
+                goto fail;
+
+        error = agp_lba_init(lba_hpa);
+        if (error)
+                goto fail;
+
+        bridge = agp_alloc_bridge();
+        if (!bridge) {
+                error = -ENOMEM;
+                goto fail;
+        }
+        bridge->driver = &parisc_agp_driver;
+
+        fake_bridge_dev->vendor = PCI_VENDOR_ID_HP;
+        fake_bridge_dev->device = PCI_DEVICE_ID_HP_PCIX_LBA;
+        bridge->dev = fake_bridge_dev;
+
+        error = agp_add_bridge(bridge);
+
+fail:
+        return error;
+}
+
+static struct device *next_device(struct klist_iter *i) {
+        struct klist_node * n = klist_next(i);
+        return n ? container_of(n, struct device, knode_parent) : NULL;
+}
+
+static int
+parisc_agp_init(void)
+{
+        extern struct sba_device *sba_list;
+
+        int err = -1;
+        struct parisc_device *sba = NULL, *lba = NULL;
+        struct lba_device *lbadev = NULL;
+        struct device *dev = NULL;
+        struct klist_iter i;
+
+        if (!sba_list)
+                goto out;
+
+        /* Find our parent Pluto */
+        sba = sba_list->dev;
+        if (!IS_PLUTO(sba)) {
+                printk(KERN_INFO DRVPFX "No Pluto found, so no AGPGART for you.\n");
+                goto out;
+        }
+
+        /* Now search our Pluto for our precious AGP device... */
+        klist_iter_init(&sba->dev.klist_children, &i);
+        while ((dev = next_device(&i))) {
+                struct parisc_device *padev = to_parisc_device(dev);
+                if (IS_QUICKSILVER(padev))
+                        lba = padev;
+        }
+        klist_iter_exit(&i);
+
+        if (!lba) {
+                printk(KERN_INFO DRVPFX "No AGP devices found.\n");
+                goto out;
+        }
+
+        lbadev = parisc_get_drvdata(lba);
+
+        /* w00t, let's go find our cookies... */
+        parisc_agp_setup(sba_list->ioc[0].ioc_hpa, lbadev->hba.base_addr);
+
+        return 0;
+
+out:
+        return err;
+}
+
+module_init(parisc_agp_init);
+
+MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 1fbda77cefc2..c2949b4367e5 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -146,7 +146,7 @@
 #include <asm/superio.h>
 #endif
 
-#include <asm/iosapic.h>
+#include <asm/ropes.h>
 #include "./iosapic_private.h"
 
 #define MODULE_NAME "iosapic"
@@ -692,6 +692,7 @@ static void iosapic_end_irq(unsigned int irq)
         DBG(KERN_DEBUG "end_irq(%d): eoi(%p, 0x%x)\n", irq,
                         vi->eoi_addr, vi->eoi_data);
         iosapic_eoi(vi->eoi_addr, vi->eoi_data);
+        cpu_end_irq(irq);
 }
 
 static unsigned int iosapic_startup_irq(unsigned int irq)
@@ -728,7 +729,7 @@ static struct hw_interrupt_type iosapic_interrupt_type = {
         .shutdown =     iosapic_disable_irq,
         .enable =       iosapic_enable_irq,
         .disable =      iosapic_disable_irq,
-        .ack =          no_ack_irq,
+        .ack =          cpu_ack_irq,
         .end =          iosapic_end_irq,
 #ifdef CONFIG_SMP
         .set_affinity = iosapic_set_affinity_irq,
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index 3fe4a77fa16a..ba6769934c77 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -46,9 +46,9 @@
 #include <asm/page.h>
 #include <asm/system.h>
 
+#include <asm/ropes.h>
 #include <asm/hardware.h>       /* for register_parisc_driver() stuff */
 #include <asm/parisc-device.h>
-#include <asm/iosapic.h>        /* for iosapic_register() */
 #include <asm/io.h>             /* read/write stuff */
 
 #undef DEBUG_LBA        /* general stuff */
@@ -100,113 +100,10 @@
 
 #define MODULE_NAME "LBA"
 
-#define LBA_FUNC_ID     0x0000  /* function id */
-#define LBA_FCLASS      0x0008  /* function class, bist, header, rev... */
-#define LBA_CAPABLE     0x0030  /* capabilities register */
-
-#define LBA_PCI_CFG_ADDR        0x0040  /* poke CFG address here */
-#define LBA_PCI_CFG_DATA        0x0048  /* read or write data here */
-
-#define LBA_PMC_MTLT    0x0050  /* Firmware sets this - read only. */
-#define LBA_FW_SCRATCH  0x0058  /* Firmware writes the PCI bus number here. */
-#define LBA_ERROR_ADDR  0x0070  /* On error, address gets logged here */
-
-#define LBA_ARB_MASK    0x0080  /* bit 0 enable arbitration. PAT/PDC enables */
-#define LBA_ARB_PRI     0x0088  /* firmware sets this. */
-#define LBA_ARB_MODE    0x0090  /* firmware sets this. */
-#define LBA_ARB_MTLT    0x0098  /* firmware sets this. */
-
-#define LBA_MOD_ID      0x0100  /* Module ID. PDC_PAT_CELL reports 4 */
-
-#define LBA_STAT_CTL    0x0108  /* Status & Control */
-#define   LBA_BUS_RESET         0x01    /*  Deassert PCI Bus Reset Signal */
-#define   CLEAR_ERRLOG          0x10    /*  "Clear Error Log" cmd */
-#define   CLEAR_ERRLOG_ENABLE   0x20    /*  "Clear Error Log" Enable */
-#define   HF_ENABLE     0x40    /*    enable HF mode (default is -1 mode) */
-
-#define LBA_LMMIO_BASE  0x0200  /* < 4GB I/O address range */
-#define LBA_LMMIO_MASK  0x0208
-
-#define LBA_GMMIO_BASE  0x0210  /* > 4GB I/O address range */
-#define LBA_GMMIO_MASK  0x0218
-
-#define LBA_WLMMIO_BASE 0x0220  /* All < 4GB ranges under the same *SBA* */
-#define LBA_WLMMIO_MASK 0x0228
-
-#define LBA_WGMMIO_BASE 0x0230  /* All > 4GB ranges under the same *SBA* */
-#define LBA_WGMMIO_MASK 0x0238
-
-#define LBA_IOS_BASE    0x0240  /* I/O port space for this LBA */
-#define LBA_IOS_MASK    0x0248
-
-#define LBA_ELMMIO_BASE 0x0250  /* Extra LMMIO range */
-#define LBA_ELMMIO_MASK 0x0258
-
-#define LBA_EIOS_BASE   0x0260  /* Extra I/O port space */
-#define LBA_EIOS_MASK   0x0268
-
-#define LBA_GLOBAL_MASK 0x0270  /* Mercury only: Global Address Mask */
-#define LBA_DMA_CTL     0x0278  /* firmware sets this */
-
-#define LBA_IBASE       0x0300  /* SBA DMA support */
-#define LBA_IMASK       0x0308
-
-/* FIXME: ignore DMA Hint stuff until we can measure performance */
-#define LBA_HINT_CFG    0x0310
-#define LBA_HINT_BASE   0x0380  /* 14 registers at every 8 bytes. */
-
-#define LBA_BUS_MODE    0x0620
-
-/* ERROR regs are needed for config cycle kluges */
-#define LBA_ERROR_CONFIG 0x0680
-#define     LBA_SMART_MODE 0x20
-#define LBA_ERROR_STATUS 0x0688
-#define LBA_ROPE_CTL     0x06A0
-
-#define LBA_IOSAPIC_BASE        0x800 /* Offset of IRQ logic */
-
 /* non-postable I/O port space, densely packed */
 #define LBA_PORT_BASE   (PCI_F_EXTEND | 0xfee00000UL)
 static void __iomem *astro_iop_base __read_mostly;
 
-#define ELROY_HVERS     0x782
-#define MERCURY_HVERS   0x783
-#define QUICKSILVER_HVERS       0x784
-
-static inline int IS_ELROY(struct parisc_device *d)
-{
-        return (d->id.hversion == ELROY_HVERS);
-}
-
-static inline int IS_MERCURY(struct parisc_device *d)
-{
-        return (d->id.hversion == MERCURY_HVERS);
-}
-
-static inline int IS_QUICKSILVER(struct parisc_device *d)
-{
-        return (d->id.hversion == QUICKSILVER_HVERS);
-}
-
-
-/*
-** lba_device: Per instance Elroy data structure
-*/
-struct lba_device {
-        struct pci_hba_data hba;
-
-        spinlock_t      lba_lock;
-        void            *iosapic_obj;
-
-#ifdef CONFIG_64BIT
-        void __iomem *  iop_base;    /* PA_VIEW - for IO port accessor funcs */
-#endif
-
-        int             flags;       /* state/functionality enabled */
-        int             hw_rev;      /* HW revision of chip */
-};
-
-
 static u32 lba_t32;
 
 /* lba flags */
@@ -1542,8 +1439,8 @@ lba_driver_probe(struct parisc_device *dev)
                 default: version = "TR4+";
                 }
 
-                printk(KERN_INFO "%s version %s (0x%x) found at 0x%lx\n",
-                        MODULE_NAME, version, func_class & 0xf, dev->hpa.start);
+                printk(KERN_INFO "Elroy version %s (0x%x) found at 0x%lx\n",
+                       version, func_class & 0xf, dev->hpa.start);
 
                 if (func_class < 2) {
                         printk(KERN_WARNING "Can't support LBA older than "
@@ -1563,14 +1460,18 @@ lba_driver_probe(struct parisc_device *dev)
                 }
 
         } else if (IS_MERCURY(dev) || IS_QUICKSILVER(dev)) {
+                int major, minor;
+
                 func_class &= 0xff;
-                version = kmalloc(6, GFP_KERNEL);
-                snprintf(version, 6, "TR%d.%d",(func_class >> 4),(func_class & 0xf));
+                major = func_class >> 4, minor = func_class & 0xf;
+
                 /* We could use one printk for both Elroy and Mercury,
                  * but for the mask for func_class.
                  */ 
-                printk(KERN_INFO "%s version %s (0x%x) found at 0x%lx\n",
-                       MODULE_NAME, version, func_class & 0xff, dev->hpa.start);
+                printk(KERN_INFO "%s version TR%d.%d (0x%x) found at 0x%lx\n",
+                       IS_MERCURY(dev) ? "Mercury" : "Quicksilver", major,
+                       minor, func_class, dev->hpa.start);
+
                 cfg_ops = &mercury_cfg_ops;
         } else {
                 printk(KERN_ERR "Unknown LBA found at 0x%lx\n", dev->hpa.start);
@@ -1600,6 +1501,7 @@ lba_driver_probe(struct parisc_device *dev)
         lba_dev->hba.dev = dev;
         lba_dev->iosapic_obj = tmp_obj;  /* save interrupt handle */
         lba_dev->hba.iommu = sba_get_iommu(dev);  /* get iommu data */
+        parisc_set_drvdata(dev, lba_dev);
 
         /* ------------ Second : initialize common stuff ---------- */
         pci_bios = &lba_bios_ops;
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 8b4732815511..294c1117098d 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -38,22 +38,15 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 
+#include <asm/ropes.h>
+#include <asm/mckinley.h>       /* for proc_mckinley_root */
 #include <asm/runway.h>         /* for proc_runway_root */
 #include <asm/pdc.h>            /* for PDC_MODEL_* */
 #include <asm/pdcpat.h>         /* for is_pdc_pat() */
 #include <asm/parisc-device.h>
 
-
-/* declared in arch/parisc/kernel/setup.c */
-extern struct proc_dir_entry * proc_mckinley_root;
-
 #define MODULE_NAME "SBA"
 
-#ifdef CONFIG_PROC_FS
-/* depends on proc fs support. But costs CPU performance */
-#undef SBA_COLLECT_STATS
-#endif
-
 /*
 ** The number of debug flags is a clue - this code is fragile.
 ** Don't even think about messing with it unless you have
@@ -92,202 +85,12 @@ extern struct proc_dir_entry * proc_mckinley_root;
 #define DBG_RES(x...)
 #endif
 
-#if defined(CONFIG_64BIT)
-/* "low end" PA8800 machines use ZX1 chipset: PAT PDC and only run 64-bit */
-#define ZX1_SUPPORT
-#endif
-
 #define SBA_INLINE      __inline__
 
-
-/*
-** The number of pdir entries to "free" before issueing
-** a read to PCOM register to flush out PCOM writes.
-** Interacts with allocation granularity (ie 4 or 8 entries
-** allocated and free'd/purged at a time might make this
-** less interesting).
-*/
-#define DELAYED_RESOURCE_CNT    16
-
 #define DEFAULT_DMA_HINT_REG    0
 
-#define ASTRO_RUNWAY_PORT       0x582
-#define IKE_MERCED_PORT         0x803
-#define REO_MERCED_PORT         0x804
-#define REOG_MERCED_PORT        0x805
-#define PLUTO_MCKINLEY_PORT     0x880
-
-#define SBA_FUNC_ID     0x0000  /* function id */
-#define SBA_FCLASS      0x0008  /* function class, bist, header, rev... */
-
-#define IS_ASTRO(id)            ((id)->hversion == ASTRO_RUNWAY_PORT)
-#define IS_IKE(id)              ((id)->hversion == IKE_MERCED_PORT)
-#define IS_PLUTO(id)            ((id)->hversion == PLUTO_MCKINLEY_PORT)
-
-#define SBA_FUNC_SIZE 4096   /* SBA configuration function reg set */
-
-#define ASTRO_IOC_OFFSET        (32 * SBA_FUNC_SIZE)
-#define PLUTO_IOC_OFFSET        (1 * SBA_FUNC_SIZE)
-/* Ike's IOC's occupy functions 2 and 3 */
-#define IKE_IOC_OFFSET(p)       ((p+2) * SBA_FUNC_SIZE)
-
-#define IOC_CTRL          0x8   /* IOC_CTRL offset */
-#define IOC_CTRL_TC       (1 << 0) /* TOC Enable */
-#define IOC_CTRL_CE       (1 << 1) /* Coalesce Enable */
-#define IOC_CTRL_DE       (1 << 2) /* Dillon Enable */
-#define IOC_CTRL_RM       (1 << 8) /* Real Mode */
-#define IOC_CTRL_NC       (1 << 9) /* Non Coherent Mode */
-#define IOC_CTRL_D4       (1 << 11) /* Disable 4-byte coalescing */
-#define IOC_CTRL_DD       (1 << 13) /* Disable distr. LMMIO range coalescing */
-
-#define MAX_IOC         2       /* per Ike. Pluto/Astro only have 1. */
-
-#define ROPES_PER_IOC   8       /* per Ike half or Pluto/Astro */
-
-
-/*
-** Offsets into MBIB (Function 0 on Ike and hopefully Astro)
-** Firmware programs this stuff. Don't touch it.
-*/
-#define LMMIO_DIRECT0_BASE  0x300
-#define LMMIO_DIRECT0_MASK  0x308
-#define LMMIO_DIRECT0_ROUTE 0x310
-
-#define LMMIO_DIST_BASE  0x360
-#define LMMIO_DIST_MASK  0x368
-#define LMMIO_DIST_ROUTE 0x370
-
-#define IOS_DIST_BASE   0x390
-#define IOS_DIST_MASK   0x398
-#define IOS_DIST_ROUTE  0x3A0
-
-#define IOS_DIRECT_BASE 0x3C0
-#define IOS_DIRECT_MASK 0x3C8
-#define IOS_DIRECT_ROUTE 0x3D0
-
-/*
-** Offsets into I/O TLB (Function 2 and 3 on Ike)
-*/
-#define ROPE0_CTL       0x200  /* "regbus pci0" */
-#define ROPE1_CTL       0x208
-#define ROPE2_CTL       0x210
-#define ROPE3_CTL       0x218
-#define ROPE4_CTL       0x220
-#define ROPE5_CTL       0x228
-#define ROPE6_CTL       0x230
-#define ROPE7_CTL       0x238
-
-#define IOC_ROPE0_CFG   0x500   /* pluto only */
-#define   IOC_ROPE_AO     0x10  /* Allow "Relaxed Ordering" */
-
-
-
-#define HF_ENABLE       0x40
-
-
-#define IOC_IBASE       0x300   /* IO TLB */
-#define IOC_IMASK       0x308
-#define IOC_PCOM        0x310
-#define IOC_TCNFG       0x318
-#define IOC_PDIR_BASE   0x320
-
-/* AGP GART driver looks for this */
-#define SBA_IOMMU_COOKIE    0x0000badbadc0ffeeUL
-
-
-/*
-** IOC supports 4/8/16/64KB page sizes (see TCNFG register)
-** It's safer (avoid memory corruption) to keep DMA page mappings
-** equivalently sized to VM PAGE_SIZE.
-**
-** We really can't avoid generating a new mapping for each
-** page since the Virtual Coherence Index has to be generated
-** and updated for each page.
-**
-** PAGE_SIZE could be greater than IOVP_SIZE. But not the inverse.
-*/
-#define IOVP_SIZE       PAGE_SIZE
-#define IOVP_SHIFT      PAGE_SHIFT
-#define IOVP_MASK       PAGE_MASK
-
-#define SBA_PERF_CFG    0x708   /* Performance Counter stuff */
-#define SBA_PERF_MASK1  0x718
-#define SBA_PERF_MASK2  0x730
-
-
-/*
-** Offsets into PCI Performance Counters (functions 12 and 13)
-** Controlled by PERF registers in function 2 & 3 respectively.
-*/
-#define SBA_PERF_CNT1   0x200
-#define SBA_PERF_CNT2   0x208
-#define SBA_PERF_CNT3   0x210
-
-
-struct ioc {
-        void __iomem    *ioc_hpa;       /* I/O MMU base address */
-        char            *res_map;       /* resource map, bit == pdir entry */
-        u64             *pdir_base;     /* physical base address */
-        unsigned long   ibase;  /* pdir IOV Space base - shared w/lba_pci */
-        unsigned long   imask;  /* pdir IOV Space mask - shared w/lba_pci */
-#ifdef ZX1_SUPPORT
-        unsigned long   iovp_mask;      /* help convert IOVA to IOVP */
-#endif
-        unsigned long   *res_hint;      /* next avail IOVP - circular search */
-        spinlock_t      res_lock;
-        unsigned int    res_bitshift;   /* from the LEFT! */
-        unsigned int    res_size;       /* size of resource map in bytes */
-#ifdef SBA_HINT_SUPPORT
-/* FIXME : DMA HINTs not used */
-        unsigned long   hint_mask_pdir; /* bits used for DMA hints */
-        unsigned int    hint_shift_pdir;
-#endif
-#if DELAYED_RESOURCE_CNT > 0
-        int saved_cnt;
-        struct sba_dma_pair {
-                dma_addr_t      iova;
-                size_t          size;
-        } saved[DELAYED_RESOURCE_CNT];
-#endif
-
-#ifdef SBA_COLLECT_STATS
-#define SBA_SEARCH_SAMPLE       0x100
-        unsigned long avg_search[SBA_SEARCH_SAMPLE];
-        unsigned long avg_idx;  /* current index into avg_search */
-        unsigned long used_pages;
-        unsigned long msingle_calls;
-        unsigned long msingle_pages;
-        unsigned long msg_calls;
-        unsigned long msg_pages;
-        unsigned long usingle_calls;
-        unsigned long usingle_pages;
-        unsigned long usg_calls;
-        unsigned long usg_pages;
-#endif
-
-        /* STUFF We don't need in performance path */
-        unsigned int    pdir_size;      /* in bytes, determined by IOV Space size */
-};
-
-struct sba_device {
-        struct sba_device       *next;  /* list of SBA's in system */
-        struct parisc_device    *dev;   /* dev found in bus walk */
-        struct parisc_device_id *iodc;  /* data about dev from firmware */
-        const char              *name;
-        void __iomem            *sba_hpa; /* base address */
-        spinlock_t              sba_lock;
-        unsigned int            flags;  /* state/functionality enabled */
-        unsigned int            hw_rev;  /* HW revision of chip */
-
-        struct resource         chip_resv; /* MMIO reserved for chip */
-        struct resource         iommu_resv; /* MMIO reserved for iommu */
-
-        unsigned int            num_ioc;  /* number of on-board IOC's */
-        struct ioc              ioc[MAX_IOC];
-};
-
-
-static struct sba_device *sba_list;
+struct sba_device *sba_list;
+EXPORT_SYMBOL_GPL(sba_list);
 
 static unsigned long ioc_needs_fdc = 0;
 
@@ -300,8 +103,14 @@ static unsigned long piranha_bad_128k = 0;
 /* Looks nice and keeps the compiler happy */
 #define SBA_DEV(d) ((struct sba_device *) (d))
 
+#ifdef CONFIG_AGP_PARISC
+#define SBA_AGP_SUPPORT
+#endif /*CONFIG_AGP_PARISC*/
+
 #ifdef SBA_AGP_SUPPORT
-static int reserve_sba_gart = 1;
+static int sba_reserve_agpgart = 1;
+module_param(sba_reserve_agpgart, int, 1);
+MODULE_PARM_DESC(sba_reserve_agpgart, "Reserve half of IO pdir as AGPGART");
 #endif
 
 #define ROUNDUP(x,y) ((x + ((y)-1)) & ~((y)-1))
@@ -741,7 +550,7 @@ sba_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
         asm("lci 0(%%sr1, %1), %0" : "=r" (ci) : "r" (vba));
         pa |= (ci >> 12) & 0xff;  /* move CI (8 bits) into lowest byte */
 
-        pa |= 0x8000000000000000ULL;    /* set "valid" bit */
+        pa |= SBA_PDIR_VALID_BIT;       /* set "valid" bit */
         *pdir_ptr = cpu_to_le64(pa);    /* swap and store into I/O Pdir */
 
         /*
@@ -1498,6 +1307,10 @@ sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
         WRITE_REG(ioc->ibase | 31, ioc->ioc_hpa + IOC_PCOM);
 
 #ifdef SBA_AGP_SUPPORT
+{
+        struct klist_iter i;
+        struct device *dev = NULL;
+
         /*
         ** If an AGP device is present, only use half of the IOV space
         ** for PCI DMA.  Unfortunately we can't know ahead of time
@@ -1506,20 +1319,22 @@ sba_ioc_init_pluto(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
         ** We program the next pdir index after we stop w/ a key for
         ** the GART code to handshake on.
         */
-        device=NULL;
-        for (lba = sba->child; lba; lba = lba->sibling) {
+        klist_iter_init(&sba->dev.klist_children, &i);
+        while (dev = next_device(&i)) {
+                struct parisc_device *lba = to_parisc_device(dev);
                 if (IS_QUICKSILVER(lba))
-                        break;
+                        agp_found = 1;
         }
+        klist_iter_exit(&sba->dev.klist_children, &i);
 
-        if (lba) {
-                DBG_INIT("%s: Reserving half of IOVA space for AGP GART support\n", __FUNCTION__);
+        if (agp_found && sba_reserve_agpgart) {
+                printk(KERN_INFO "%s: reserving %dMb of IOVA space for agpgart\n",
+                       __FUNCTION__, (iova_space_size/2) >> 20);
                 ioc->pdir_size /= 2;
-                ((u64 *)ioc->pdir_base)[PDIR_INDEX(iova_space_size/2)] = SBA_IOMMU_COOKIE;
-        } else {
-                DBG_INIT("%s: No GART needed - no AGP controller found\n", __FUNCTION__);
+                ioc->pdir_base[PDIR_INDEX(iova_space_size/2)] = SBA_AGPGART_COOKIE;
         }
-#endif /* 0 */
+}
+#endif /*SBA_AGP_SUPPORT*/
 
 }
 
@@ -1701,7 +1516,7 @@ printk("sba_hw_init(): mem_boot 0x%x 0x%x 0x%x 0x%x\n", PAGE0->mem_boot.hpa,
         }
 #endif
 
-        if (!IS_PLUTO(sba_dev->iodc)) {
+        if (!IS_PLUTO(sba_dev->dev)) {
                 ioc_ctl = READ_REG(sba_dev->sba_hpa+IOC_CTRL);
                 DBG_INIT("%s() hpa 0x%lx ioc_ctl 0x%Lx ->",
                         __FUNCTION__, sba_dev->sba_hpa, ioc_ctl);
@@ -1718,9 +1533,8 @@ printk("sba_hw_init(): mem_boot 0x%x 0x%x 0x%x 0x%x\n", PAGE0->mem_boot.hpa,
 #endif
         } /* if !PLUTO */
 
-        if (IS_ASTRO(sba_dev->iodc)) {
+        if (IS_ASTRO(sba_dev->dev)) {
                 int err;
-                /* PAT_PDC (L-class) also reports the same goofy base */
                 sba_dev->ioc[0].ioc_hpa = ioc_remap(sba_dev, ASTRO_IOC_OFFSET);
                 num_ioc = 1;
 
@@ -1730,13 +1544,9 @@ printk("sba_hw_init(): mem_boot 0x%x 0x%x 0x%x 0x%x\n", PAGE0->mem_boot.hpa,
                 err = request_resource(&iomem_resource, &(sba_dev->chip_resv));
                 BUG_ON(err < 0);
 
-        } else if (IS_PLUTO(sba_dev->iodc)) {
+        } else if (IS_PLUTO(sba_dev->dev)) {
                 int err;
 
-                /* We use a negative value for IOC HPA so it gets 
-                 * corrected when we add it with IKE's IOC offset.
-                 * Doesnt look clean, but fewer code. 
-                 */
                 sba_dev->ioc[0].ioc_hpa = ioc_remap(sba_dev, PLUTO_IOC_OFFSET);
                 num_ioc = 1;
 
@@ -1752,14 +1562,14 @@ printk("sba_hw_init(): mem_boot 0x%x 0x%x 0x%x 0x%x\n", PAGE0->mem_boot.hpa,
                 err = request_resource(&iomem_resource, &(sba_dev->iommu_resv));
                 WARN_ON(err < 0);
         } else {
-                /* IS_IKE (ie N-class, L3000, L1500) */
+                /* IKE, REO */
                 sba_dev->ioc[0].ioc_hpa = ioc_remap(sba_dev, IKE_IOC_OFFSET(0));
                 sba_dev->ioc[1].ioc_hpa = ioc_remap(sba_dev, IKE_IOC_OFFSET(1));
                 num_ioc = 2;
 
                 /* TODO - LOOKUP Ike/Stretch chipset mem map */
         }
-        /* XXX: What about Reo? */
+        /* XXX: What about Reo Grande? */
 
         sba_dev->num_ioc = num_ioc;
         for (i = 0; i < num_ioc; i++) {
@@ -1774,7 +1584,7 @@ printk("sba_hw_init(): mem_boot 0x%x 0x%x 0x%x 0x%x\n", PAGE0->mem_boot.hpa,
                          * Overrides bit 1 in DMA Hint Sets.
                          * Improves netperf UDP_STREAM by ~10% for bcm5701.
                          */
-                        if (IS_PLUTO(sba_dev->iodc)) {
+                        if (IS_PLUTO(sba_dev->dev)) {
                                 void __iomem *rope_cfg;
                                 unsigned long cfg_val;
 
@@ -1803,7 +1613,7 @@ printk("sba_hw_init(): mem_boot 0x%x 0x%x 0x%x 0x%x\n", PAGE0->mem_boot.hpa,
                                 READ_REG(sba_dev->ioc[i].ioc_hpa + 0x400)
                         );
 
-                if (IS_PLUTO(sba_dev->iodc)) {
+                if (IS_PLUTO(sba_dev->dev)) {
                         sba_ioc_init_pluto(sba_dev->dev, &(sba_dev->ioc[i]), i);
                 } else {
                         sba_ioc_init(sba_dev->dev, &(sba_dev->ioc[i]), i);
@@ -2067,7 +1877,7 @@ sba_driver_callback(struct parisc_device *dev)
         /* Read HW Rev First */
         func_class = READ_REG(sba_addr + SBA_FCLASS);
 
-        if (IS_ASTRO(&dev->id)) {
+        if (IS_ASTRO(dev)) {
                 unsigned long fclass;
                 static char astro_rev[]="Astro ?.?";
 
@@ -2078,11 +1888,11 @@ sba_driver_callback(struct parisc_device *dev)
                 astro_rev[8] = '0' + (char) ((fclass & 0x18) >> 3);
                 version = astro_rev;
 
-        } else if (IS_IKE(&dev->id)) {
+        } else if (IS_IKE(dev)) {
                 static char ike_rev[] = "Ike rev ?";
                 ike_rev[8] = '0' + (char) (func_class & 0xff);
                 version = ike_rev;
-        } else if (IS_PLUTO(&dev->id)) {
+        } else if (IS_PLUTO(dev)) {
                 static char pluto_rev[]="Pluto ?.?";
                 pluto_rev[6] = '0' + (char) ((func_class & 0xf0) >> 4); 
                 pluto_rev[8] = '0' + (char) (func_class & 0x0f); 
@@ -2097,7 +1907,7 @@ sba_driver_callback(struct parisc_device *dev)
                 global_ioc_cnt = count_parisc_driver(&sba_driver);
 
                 /* Astro and Pluto have one IOC per SBA */
-                if ((!IS_ASTRO(&dev->id)) || (!IS_PLUTO(&dev->id)))
+                if ((!IS_ASTRO(dev)) || (!IS_PLUTO(dev)))
                         global_ioc_cnt *= 2;
         }
 
@@ -2117,7 +1927,6 @@ sba_driver_callback(struct parisc_device *dev)
 
         sba_dev->dev = dev;
         sba_dev->hw_rev = func_class;
-        sba_dev->iodc = &dev->id;
         sba_dev->name = dev->name;
         sba_dev->sba_hpa = sba_addr;
 
diff --git a/drivers/serial/8250_gsc.c b/drivers/serial/8250_gsc.c
index 1ebe6b585d2d..c5d0addfda4f 100644
--- a/drivers/serial/8250_gsc.c
+++ b/drivers/serial/8250_gsc.c
@@ -22,7 +22,6 @@
 #include <asm/hardware.h>
 #include <asm/parisc-device.h>
 #include <asm/io.h>
-#include <asm/serial.h> /* for LASI_BASE_BAUD */
 
 #include "8250.h"
 
@@ -54,7 +53,8 @@ serial_init_chip(struct parisc_device *dev)
 
         memset(&port, 0, sizeof(port));
         port.iotype     = UPIO_MEM;
-        port.uartclk    = LASI_BASE_BAUD * 16;
+        /* 7.272727MHz on Lasi.  Assumed the same for Dino, Wax and Timi. */
+        port.uartclk    = 7272727;
         port.mapbase    = address;
         port.membase    = ioremap_nocache(address, 16);
         port.irq        = dev->irq;
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 653098bc2dd5..8edee745888a 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -556,10 +556,11 @@ config SERIAL_MUX
         default y
         ---help---
           Saying Y here will enable the hardware MUX serial driver for
-          the Nova and K class systems.  The hardware MUX is not 8250/16550 
-          compatible therefore the /dev/ttyB0 device is shared between the 
-          Serial MUX and the PDC software console.  The following steps 
-          need to be completed to use the Serial MUX:
+          the Nova, K class systems and D class with a 'remote control card'.
+          The hardware MUX is not 8250/16550 compatible therefore the
+          /dev/ttyB0 device is shared between the Serial MUX and the PDC
+          software console. The following steps need to be completed to use
+          the Serial MUX:
 
             1. create the device entry (mknod /dev/ttyB0 c 11 0)
             2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0