[SPARC64]: __iomem annotations and iomap implementation.

arch/sparc64/kernel/auxio.c

@@ -17,7 +17,7 @@
 #include <asm/auxio.h>
 
 /* This cannot be static, as it is referenced in entry.S */
-unsigned long auxio_register = 0UL;
+void __iomem *auxio_register = 0UL;
 
 enum auxio_type {
 	AUXIO_TYPE_NODEV,
@@ -30,7 +30,7 @@ static spinlock_t auxio_lock = SPIN_LOCK_UNLOCKED;
 
 static void __auxio_sbus_set(u8 bits_on, u8 bits_off)
 {
-	if(auxio_register) {
+	if (auxio_register) {
 		unsigned char regval;
 		unsigned long flags;
 		unsigned char newval;
@@ -49,7 +49,7 @@ static void __auxio_sbus_set(u8 bits_on, u8 bits_off)
 
 static void __auxio_ebus_set(u8 bits_on, u8 bits_off)
 {
-	if(auxio_register) {
+	if (auxio_register) {
 		unsigned char regval;
 		unsigned long flags;
 		unsigned char newval;
@@ -126,7 +126,8 @@ void __init auxio_probe(void)
 	if (sdev) {
 		auxio_devtype  = AUXIO_TYPE_SBUS;
 		auxio_register = sbus_ioremap(&sdev->resource[0], 0,
-		  		sdev->reg_addrs[0].reg_size, "auxiliaryIO");
+					      sdev->reg_addrs[0].reg_size,
+					      "auxiliaryIO");
 	}
 #ifdef CONFIG_PCI
 	else {
@@ -142,7 +143,7 @@ void __init auxio_probe(void)
 	ebus_done:
 		if (edev) {
 			auxio_devtype  = AUXIO_TYPE_EBUS;
-			auxio_register = (unsigned long)
+			auxio_register =
 				ioremap(edev->resource[0].start, sizeof(u32));
 		}
 	}

arch/sparc64/kernel/pci_schizo.c

@@ -1171,7 +1171,7 @@ static void __init tomatillo_register_error_handlers(struct pci_controller_info
 		prom_halt();
 	}
 	bucket = __bucket(irq);
-	tmp = readl(bucket->imap);
+	tmp = upa_readl(bucket->imap);
 	upa_writel(tmp, (pbm->pbm_regs +
 			 schizo_imap_offset(SCHIZO_UE_INO) + 4));
 
@@ -1309,7 +1309,7 @@ static void __init schizo_register_error_handlers(struct pci_controller_info *p)
 		prom_halt();
 	}
 	bucket = __bucket(irq);
-	tmp = readl(bucket->imap);
+	tmp = upa_readl(bucket->imap);
 	upa_writel(tmp, (pbm->pbm_regs + schizo_imap_offset(SCHIZO_UE_INO) + 4));
 
 	pbm = pbm_for_ino(p, SCHIZO_CE_INO);

arch/sparc64/kernel/power.c

@@ -27,7 +27,7 @@
 int scons_pwroff = 1; 
 
 #ifdef CONFIG_PCI
-static unsigned long power_reg = 0UL;
+static void __iomem *power_reg;
 
 static DECLARE_WAIT_QUEUE_HEAD(powerd_wait);
 static int button_pressed;
@@ -52,7 +52,7 @@ void machine_power_off(void)
 {
 	if (!serial_console || scons_pwroff) {
 #ifdef CONFIG_PCI
-		if (power_reg != 0UL) {
+		if (power_reg) {
 			/* Both register bits seem to have the
 			 * same effect, so until I figure out
 			 * what the difference is...
@@ -130,8 +130,8 @@ void __init power_init(void)
 	return;
 
 found:
-	power_reg = (unsigned long)ioremap(edev->resource[0].start, 0x4);
-	printk("power: Control reg at %016lx ... ", power_reg);
+	power_reg = ioremap(edev->resource[0].start, 0x4);
+	printk("power: Control reg at %p ... ", power_reg);
 	poweroff_method = machine_halt;  /* able to use the standard halt */
 	if (has_button_interrupt(edev)) {
 		if (kernel_thread(powerd, NULL, CLONE_FS) < 0) {

arch/sparc64/lib/Makefile

@@ -12,7 +12,7 @@ lib-y := PeeCeeI.o copy_page.o clear_page.o strlen.o strncmp.o \
 	 U1memcpy.o U1copy_from_user.o U1copy_to_user.o \
 	 U3memcpy.o U3copy_from_user.o U3copy_to_user.o U3patch.o \
 	 copy_in_user.o user_fixup.o memmove.o \
-	 mcount.o ipcsum.o rwsem.o xor.o find_bit.o delay.o
+	 mcount.o ipcsum.o rwsem.o xor.o find_bit.o delay.o iomap.o
 
 lib-$(CONFIG_DEBUG_SPINLOCK) += debuglocks.o
 lib-$(CONFIG_HAVE_DEC_LOCK) += dec_and_lock.o

arch/sparc64/lib/iomap.c

+/*
+ * Implement the sparc64 iomap interfaces
+ */
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <asm/io.h>
+
+/* Create a virtual mapping cookie for an IO port range */
+void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+	return (void __iomem *) (unsigned long) port;
+}
+
+void ioport_unmap(void __iomem *addr)
+{
+	/* Nothing to do */
+}
+EXPORT_SYMBOL(ioport_map);
+EXPORT_SYMBOL(ioport_unmap);
+
+/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
+{
+	unsigned long start = pci_resource_start(dev, bar);
+	unsigned long len = pci_resource_len(dev, bar);
+	unsigned long flags = pci_resource_flags(dev, bar);
+
+	if (!len || !start)
+		return NULL;
+	if (maxlen && len > maxlen)
+		len = maxlen;
+	if (flags & IORESOURCE_IO)
+		return ioport_map(start, len);
+	if (flags & IORESOURCE_MEM) {
+		if (flags & IORESOURCE_CACHEABLE)
+			return ioremap(start, len);
+		return ioremap_nocache(start, len);
+	}
+	/* What? */
+	return NULL;
+}
+
+void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
+{
+	/* nothing to do */
+}
+EXPORT_SYMBOL(pci_iomap);
+EXPORT_SYMBOL(pci_iounmap);

include/asm-sparc64/ebus.h

@@ -53,7 +53,7 @@ struct linux_ebus {
 
 struct ebus_dma_info {
 	spinlock_t	lock;
-	unsigned long	regs;
+	void __iomem	*regs;
 
 	unsigned int	flags;
 #define EBUS_DMA_FLAG_USE_EBDMA_HANDLER		0x00000001