[PARISC] I/O-Space must be ioremap_nocache()'d

Addresses in F-space must be accessed uncached on most parisc machines.

Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

12 files changed, 47 insertions, 53 deletions

diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
index a7b0de0f92b..c0b1e4becad 100644
--- a/drivers/input/serio/gscps2.c
+++ b/drivers/input/serio/gscps2.c
@@ -1,7 +1,7 @@
 /*
  * drivers/input/serio/gscps2.c
  *
- * Copyright (c) 2004 Helge Deller <deller@gmx.de>
+ * Copyright (c) 2004-2006 Helge Deller <deller@gmx.de>
  * Copyright (c) 2002 Laurent Canet <canetl@esiee.fr>
  * Copyright (c) 2002 Thibaut Varene <varenet@parisc-linux.org>
  *
@@ -354,7 +354,7 @@ static int __init gscps2_probe(struct parisc_device *dev)
         memset(serio, 0, sizeof(struct serio));
         ps2port->port = serio;
         ps2port->padev = dev;
-        ps2port->addr = ioremap(hpa, GSC_STATUS + 4);
+        ps2port->addr = ioremap_nocache(hpa, GSC_STATUS + 4);
         spin_lock_init(&ps2port->lock);
 
         gscps2_reset(ps2port);
diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c
index 93f8a8fa889..a5d826237b2 100644
--- a/drivers/parisc/ccio-dma.c
+++ b/drivers/parisc/ccio-dma.c
@@ -1560,7 +1560,7 @@ static int ccio_probe(struct parisc_device *dev)
         *ioc_p = ioc;
 
         ioc->hw_path = dev->hw_path;
-        ioc->ioc_regs = ioremap(dev->hpa.start, 4096);
+        ioc->ioc_regs = ioremap_nocache(dev->hpa.start, 4096);
         ccio_ioc_init(ioc);
         ccio_init_resources(ioc);
         hppa_dma_ops = &ccio_ops;
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 3d1a7f98c67..6e8ed0c81a6 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -5,6 +5,7 @@
 **      (c) Copyright 1999 SuSE GmbH
 **      (c) Copyright 1999,2000 Hewlett-Packard Company
 **      (c) Copyright 2000 Grant Grundler
+**      (c) Copyright 2006 Helge Deller
 **
 **      This program is free software; you can redistribute it and/or modify
 **      it under the terms of the GNU General Public License as published by
@@ -785,7 +786,7 @@ dino_bridge_init(struct dino_device *dino_dev, const char *name)
                 if((io_addr & (1 << i)) == 0)
                         continue;
 
-                start = (unsigned long)(signed int)(0xf0000000 | (i << 23));
+                start = F_EXTEND(0xf0000000UL) | (i << 23);
                 end = start + 8 * 1024 * 1024 - 1;
 
                 DBG("DINO RANGE %d is at 0x%lx-0x%lx\n", count,
@@ -996,7 +997,7 @@ static int __init dino_probe(struct parisc_device *dev)
         }
 
         dino_dev->hba.dev = dev;
-        dino_dev->hba.base_addr = ioremap(hpa, 4096);
+        dino_dev->hba.base_addr = ioremap_nocache(hpa, 4096);
         dino_dev->hba.lmmio_space_offset = 0;   /* CPU addrs == bus addrs */
         spin_lock_init(&dino_dev->dinosaur_pen);
         dino_dev->hba.iommu = ccio_get_iommu(dev);
diff --git a/drivers/parisc/eisa.c b/drivers/parisc/eisa.c
index 3d94d86c1c9..9d3bd15bf53 100644
--- a/drivers/parisc/eisa.c
+++ b/drivers/parisc/eisa.c
@@ -366,7 +366,7 @@ static int __devinit eisa_probe(struct parisc_device *dev)
                         eisa_dev.eeprom_addr = MIRAGE_EEPROM_BASE_ADDR;
                 }
         }
-        eisa_eeprom_addr = ioremap(eisa_dev.eeprom_addr, HPEE_MAX_LENGTH);
+        eisa_eeprom_addr = ioremap_nocache(eisa_dev.eeprom_addr, HPEE_MAX_LENGTH);
         result = eisa_enumerator(eisa_dev.eeprom_addr, &eisa_dev.hba.io_space,
                         &eisa_dev.hba.lmmio_space);
         init_eisa_pic();
diff --git a/drivers/parisc/iosapic.c b/drivers/parisc/iosapic.c
index 8d7a36392eb..7a458d5bc75 100644
--- a/drivers/parisc/iosapic.c
+++ b/drivers/parisc/iosapic.c
@@ -879,7 +879,7 @@ void *iosapic_register(unsigned long hpa)
                 return NULL;
         }
 
-        isi->addr = ioremap(hpa, 4096);
+        isi->addr = ioremap_nocache(hpa, 4096);
         isi->isi_hpa = hpa;
         isi->isi_version = iosapic_rd_version(isi);
         isi->isi_num_vectors = IOSAPIC_IRDT_MAX_ENTRY(isi->isi_version) + 1;
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index e8a2a4a852f..3fe4a77fa16 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1213,7 +1213,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev)
                         ** Postable I/O port space is per PCI host adapter.
                         ** base of 64MB PIOP region
                         */
-                        lba_dev->iop_base = ioremap(p->start, 64 * 1024 * 1024);
+                        lba_dev->iop_base = ioremap_nocache(p->start, 64 * 1024 * 1024);
 
                         sprintf(lba_dev->hba.io_name, "PCI%02lx Ports",
                                         lba_dev->hba.bus_num.start);
@@ -1525,7 +1525,7 @@ lba_driver_probe(struct parisc_device *dev)
         u32 func_class;
         void *tmp_obj;
         char *version;
-        void __iomem *addr = ioremap(dev->hpa.start, 4096);
+        void __iomem *addr = ioremap_nocache(dev->hpa.start, 4096);
 
         /* Read HW Rev First */
         func_class = READ_REG32(addr + LBA_FCLASS);
@@ -1619,7 +1619,7 @@ lba_driver_probe(struct parisc_device *dev)
         } else {
                 if (!astro_iop_base) {
                         /* Sprockets PDC uses NPIOP region */
-                        astro_iop_base = ioremap(LBA_PORT_BASE, 64 * 1024);
+                        astro_iop_base = ioremap_nocache(LBA_PORT_BASE, 64 * 1024);
                         pci_port = &lba_astro_port_ops;
                 }
 
@@ -1700,7 +1700,7 @@ void __init lba_init(void)
 */
 void lba_set_iregs(struct parisc_device *lba, u32 ibase, u32 imask)
 {
-        void __iomem * base_addr = ioremap(lba->hpa.start, 4096);
+        void __iomem * base_addr = ioremap_nocache(lba->hpa.start, 4096);
 
         imask <<= 2;    /* adjust for hints - 2 more bits */
 
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c
index 0821747e44c..42b32ff2fca 100644
--- a/drivers/parisc/sba_iommu.c
+++ b/drivers/parisc/sba_iommu.c
@@ -1642,9 +1642,9 @@ sba_ioc_init(struct parisc_device *sba, struct ioc *ioc, int ioc_num)
 **
 **************************************************************************/
 
-static void __iomem *ioc_remap(struct sba_device *sba_dev, int offset)
+static void __iomem *ioc_remap(struct sba_device *sba_dev, unsigned int offset)
 {
-        return ioremap(sba_dev->dev->hpa.start + offset, SBA_FUNC_SIZE);
+        return ioremap_nocache(sba_dev->dev->hpa.start + offset, SBA_FUNC_SIZE);
 }
 
 static void sba_hw_init(struct sba_device *sba_dev)
@@ -2040,7 +2040,7 @@ sba_driver_callback(struct parisc_device *dev)
         u32 func_class;
         int i;
         char *version;
-        void __iomem *sba_addr = ioremap(dev->hpa.start, SBA_FUNC_SIZE);
+        void __iomem *sba_addr = ioremap_nocache(dev->hpa.start, SBA_FUNC_SIZE);
         struct proc_dir_entry *info_entry, *bitmap_entry, *root;
 
         sba_dump_ranges(sba_addr);
diff --git a/drivers/parisc/superio.c b/drivers/parisc/superio.c
index ad6d3b28a3a..719b863bc20 100644
--- a/drivers/parisc/superio.c
+++ b/drivers/parisc/superio.c
@@ -12,6 +12,7 @@
  *      (C) Copyright 2001 John Marvin <jsm fc hp com>
  *      (C) Copyright 2003 Grant Grundler <grundler parisc-linux org>
  *      (C) Copyright 2005 Kyle McMartin <kyle@parisc-linux.org>
+ *      (C) Copyright 2006 Helge Deller <deller@gmx.de>
  *
  *      This program is free software; you can redistribute it and/or
  *      modify it under the terms of the GNU General Public License as
@@ -388,43 +389,34 @@ int superio_fixup_irq(struct pci_dev *pcidev)
         return local_irq;
 }
 
-static struct uart_port serial[] = {
-        {
-                .iotype         = UPIO_PORT,
-                .line           = 0,
-                .type           = PORT_16550A,
-                .uartclk        = 115200*16,
-                .fifosize       = 16,
-        },
-        {
-                .iotype         = UPIO_PORT,
-                .line           = 1,
-                .type           = PORT_16550A,
-                .uartclk        = 115200*16,
-                .fifosize       = 16,
-        }
-};
-
 static void __devinit superio_serial_init(void)
 {
 #ifdef CONFIG_SERIAL_8250
         int retval;
-        
-        serial[0].iobase = sio_dev.sp1_base;
-        serial[0].irq = SP1_IRQ;
-        spin_lock_init(&serial[0].lock);
-
-        retval = early_serial_setup(&serial[0]);
+        struct uart_port serial_port;
+
+        memset(&serial_port, 0, sizeof(serial_port));
+        serial_port.iotype      = UPIO_PORT;
+        serial_port.type        = PORT_16550A;
+        serial_port.uartclk     = 115200*16;
+        serial_port.fifosize    = 16;
+        spin_lock_init(&serial_port.lock);
+
+        /* serial port #1 */
+        serial_port.iobase      = sio_dev.sp1_base;
+        serial_port.irq         = SP1_IRQ;
+        serial_port.line        = 0;
+        retval = early_serial_setup(&serial_port);
         if (retval < 0) {
                 printk(KERN_WARNING PFX "Register Serial #0 failed.\n");
                 return;
         }
 
-        serial[1].iobase = sio_dev.sp2_base;
-        serial[1].irq = SP2_IRQ;
-        spin_lock_init(&serial[1].lock);
-        retval = early_serial_setup(&serial[1]);
-
+        /* serial port #2 */
+        serial_port.iobase      = sio_dev.sp2_base;
+        serial_port.irq         = SP2_IRQ;
+        serial_port.line        = 1;
+        retval = early_serial_setup(&serial_port);
         if (retval < 0)
                 printk(KERN_WARNING PFX "Register Serial #1 failed.\n");
 #endif /* CONFIG_SERIAL_8250 */
diff --git a/drivers/scsi/lasi700.c b/drivers/scsi/lasi700.c
index 459a4daebec..eb7bd310cc8 100644
--- a/drivers/scsi/lasi700.c
+++ b/drivers/scsi/lasi700.c
@@ -112,7 +112,7 @@ lasi700_probe(struct parisc_device *dev)
 
         hostdata->dev = &dev->dev;
         dma_set_mask(&dev->dev, DMA_32BIT_MASK);
-        hostdata->base = ioremap(base, 0x100);
+        hostdata->base = ioremap_nocache(base, 0x100);
         hostdata->differential = 0;
 
         if (dev->id.sversion == LASI_700_SVERSION) {
diff --git a/drivers/scsi/zalon.c b/drivers/scsi/zalon.c
index b131432c677..a6cfbb3b361 100644
--- a/drivers/scsi/zalon.c
+++ b/drivers/scsi/zalon.c
@@ -88,7 +88,7 @@ zalon_probe(struct parisc_device *dev)
         struct gsc_irq gsc_irq;
         u32 zalon_vers;
         int error = -ENODEV;
-        void __iomem *zalon = ioremap(dev->hpa.start, 4096);
+        void __iomem *zalon = ioremap_nocache(dev->hpa.start, 4096);
         void __iomem *io_port = zalon + GSC_SCSI_ZALON_OFFSET;
         static int unit = 0;
         struct Scsi_Host *host;
diff --git a/drivers/serial/8250_gsc.c b/drivers/serial/8250_gsc.c
index 8b4947933d9..913c71cc056 100644
--- a/drivers/serial/8250_gsc.c
+++ b/drivers/serial/8250_gsc.c
@@ -52,13 +52,14 @@ serial_init_chip(struct parisc_device *dev)
                 address += 0x800;
         }
 
-        memset(&port, 0, sizeof(struct uart_port));
-        port.mapbase = address;
-        port.irq = dev->irq;
-        port.iotype = UPIO_MEM;
-        port.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF;
-        port.uartclk = LASI_BASE_BAUD * 16;
-        port.dev = &dev->dev;
+        memset(&port, 0, sizeof(port));
+        port.iotype     = UPIO_MEM;
+        port.uartclk    = LASI_BASE_BAUD * 16;
+        port.mapbase    = address;
+        port.membase    = ioremap_nocache(address, 16);
+        port.irq        = dev->irq;
+        port.flags      = UPF_BOOT_AUTOCONF;
+        port.dev        = &dev->dev;
 
         err = serial8250_register_port(&port);
         if (err < 0) {
diff --git a/drivers/serial/mux.c b/drivers/serial/mux.c
index 868eaf4a1a6..64c0e89124c 100644
--- a/drivers/serial/mux.c
+++ b/drivers/serial/mux.c
@@ -51,7 +51,7 @@
 #define MUX_BREAK(status) ((status & 0xF000) == 0x2000)
 
 #define MUX_NR 256
-static unsigned int port_cnt = 0;
+static unsigned int port_cnt __read_mostly;
 static struct uart_port mux_ports[MUX_NR];
 
 static struct uart_driver mux_driver = {
@@ -461,7 +461,7 @@ static int __init mux_probe(struct parisc_device *dev)
                 port->iobase    = 0;
                 port->mapbase   = dev->hpa.start + MUX_OFFSET +
                                                 (i * MUX_LINE_OFFSET);
-                port->membase   = ioremap(port->mapbase, MUX_LINE_OFFSET);
+                port->membase   = ioremap_nocache(port->mapbase, MUX_LINE_OFFSET);
                 port->iotype    = UPIO_MEM;
                 port->type      = PORT_MUX;
                 port->irq       = NO_IRQ;