1 files changed, 101 insertions, 113 deletions

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 5ab75334c57..9eae9834bcc 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
@@ -42,7 +43,6 @@
 **       for PCI drivers devices which implement/use MMIO registers.
 */
 
-#include <linux/config.h>
 #include <linux/delay.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
@@ -55,7 +55,6 @@
 
 #include <asm/pdc.h>
 #include <asm/page.h>
-#include <asm/system.h>
 #include <asm/io.h>
 #include <asm/hardware.h>
 
@@ -83,7 +82,8 @@
 ** bus number for each dino.
 */
 
-#define is_card_dino(id) ((id)->hw_type == HPHW_A_DMA)
+#define is_card_dino(id)	((id)->hw_type == HPHW_A_DMA)
+#define is_cujo(id)		((id)->hversion == 0x682)
 
 #define DINO_IAR0		0x004
 #define DINO_IODC_ADDR		0x008
@@ -124,6 +124,7 @@
 
 #define DINO_IRQS 11		/* bits 0-10 are architected */
 #define DINO_IRR_MASK	0x5ff	/* only 10 bits are implemented */
+#define DINO_LOCAL_IRQS (DINO_IRQS+1)
 
 #define DINO_MASK_IRQ(x)	(1<<(x))
 
@@ -146,7 +147,7 @@ struct dino_device
 	unsigned long		txn_addr; /* EIR addr to generate interrupt */ 
 	u32			txn_data; /* EIR data assign to each dino */ 
 	u32 			imr;	  /* IRQ's which are enabled */ 
-	int			global_irq[12]; /* map IMR bit to global irq */
+	int			global_irq[DINO_LOCAL_IRQS]; /* map IMR bit to global irq */
 #ifdef DINO_DEBUG
 	unsigned int		dino_irr0; /* save most recent IRQ line stat */
 #endif
@@ -173,12 +174,12 @@ static int dino_cfg_read(struct pci_bus *bus, unsigned int devfn, int where,
 		int size, u32 *val)
 {
 	struct dino_device *d = DINO_DEV(parisc_walk_tree(bus->bridge));
-	u32 local_bus = (bus->parent == NULL) ? 0 : bus->secondary;
+	u32 local_bus = (bus->parent == NULL) ? 0 : bus->busn_res.start;
 	u32 v = DINO_CFG_TOK(local_bus, devfn, where & ~3);
 	void __iomem *base_addr = d->hba.base_addr;
 	unsigned long flags;
 
-	DBG("%s: %p, %d, %d, %d\n", __FUNCTION__, base_addr, devfn, where,
+	DBG("%s: %p, %d, %d, %d\n", __func__, base_addr, devfn, where,
 									size);
 	spin_lock_irqsave(&d->dinosaur_pen, flags);
 
@@ -208,12 +209,12 @@ static int dino_cfg_write(struct pci_bus *bus, unsigned int devfn, int where,
 	int size, u32 val)
 {
 	struct dino_device *d = DINO_DEV(parisc_walk_tree(bus->bridge));
-	u32 local_bus = (bus->parent == NULL) ? 0 : bus->secondary;
+	u32 local_bus = (bus->parent == NULL) ? 0 : bus->busn_res.start;
 	u32 v = DINO_CFG_TOK(local_bus, devfn, where & ~3);
 	void __iomem *base_addr = d->hba.base_addr;
 	unsigned long flags;
 
-	DBG("%s: %p, %d, %d, %d\n", __FUNCTION__, base_addr, devfn, where,
+	DBG("%s: %p, %d, %d, %d\n", __func__, base_addr, devfn, where,
 									size);
 	spin_lock_irqsave(&d->dinosaur_pen, flags);
 
@@ -285,7 +286,7 @@ DINO_PORT_OUT(b,  8, 3)
 DINO_PORT_OUT(w, 16, 2)
 DINO_PORT_OUT(l, 32, 0)
 
-struct pci_port_ops dino_port_ops = {
+static struct pci_port_ops dino_port_ops = {
 	.inb	= dino_in8,
 	.inw	= dino_in16,
 	.inl	= dino_in32,
@@ -294,25 +295,25 @@ struct pci_port_ops dino_port_ops = {
 	.outl	= dino_out32
 };
 
-static void dino_disable_irq(unsigned int irq)
+static void dino_mask_irq(struct irq_data *d)
 {
-	struct dino_device *dino_dev = irq_desc[irq].handler_data;
-	int local_irq = gsc_find_local_irq(irq, dino_dev->global_irq, irq);
+	struct dino_device *dino_dev = irq_data_get_irq_chip_data(d);
+	int local_irq = gsc_find_local_irq(d->irq, dino_dev->global_irq, DINO_LOCAL_IRQS);
 
-	DBG(KERN_WARNING "%s(0x%p, %d)\n", __FUNCTION__, dino_dev, irq);
+	DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, d->irq);
 
 	/* Clear the matching bit in the IMR register */
 	dino_dev->imr &= ~(DINO_MASK_IRQ(local_irq));
 	__raw_writel(dino_dev->imr, dino_dev->hba.base_addr+DINO_IMR);
 }
 
-static void dino_enable_irq(unsigned int irq)
+static void dino_unmask_irq(struct irq_data *d)
 {
-	struct dino_device *dino_dev = irq_desc[irq].handler_data;
-	int local_irq = gsc_find_local_irq(irq, dino_dev->global_irq, irq);
+	struct dino_device *dino_dev = irq_data_get_irq_chip_data(d);
+	int local_irq = gsc_find_local_irq(d->irq, dino_dev->global_irq, DINO_LOCAL_IRQS);
 	u32 tmp;
 
-	DBG(KERN_WARNING "%s(0x%p, %d)\n", __FUNCTION__, dino_dev, irq);
+	DBG(KERN_WARNING "%s(0x%p, %d)\n", __func__, dino_dev, d->irq);
 
 	/*
 	** clear pending IRQ bits
@@ -338,25 +339,15 @@ static void dino_enable_irq(unsigned int irq)
 	tmp = __raw_readl(dino_dev->hba.base_addr+DINO_ILR);
 	if (tmp & DINO_MASK_IRQ(local_irq)) {
 		DBG(KERN_WARNING "%s(): IRQ asserted! (ILR 0x%x)\n",
-				__FUNCTION__, tmp);
+				__func__, tmp);
 		gsc_writel(dino_dev->txn_data, dino_dev->txn_addr);
 	}
 }
 
-static unsigned int dino_startup_irq(unsigned int irq)
-{
-	dino_enable_irq(irq);
-	return 0;
-}
-
-static struct hw_interrupt_type dino_interrupt_type = {
-	.typename	= "GSC-PCI",
-	.startup	= dino_startup_irq,
-	.shutdown	= dino_disable_irq,
-	.enable		= dino_enable_irq, 
-	.disable	= dino_disable_irq,
-	.ack		= no_ack_irq,
-	.end		= no_end_irq,
+static struct irq_chip dino_interrupt_type = {
+	.name		= "GSC-PCI",
+	.irq_unmask	= dino_unmask_irq,
+	.irq_mask	= dino_mask_irq,
 };
 
 
@@ -366,8 +357,7 @@ static struct hw_interrupt_type dino_interrupt_type = {
  * ilr_loop counter is a kluge to prevent a "stuck" IRQ line from
  * wedging the CPU. Could be removed or made optional at some point.
  */
-static irqreturn_t
-dino_isr(int irq, void *intr_dev, struct pt_regs *regs)
+static irqreturn_t dino_isr(int irq, void *intr_dev)
 {
 	struct dino_device *dino_dev = intr_dev;
 	u32 mask;
@@ -387,8 +377,8 @@ ilr_again:
 		int local_irq = __ffs(mask);
 		int irq = dino_dev->global_irq[local_irq];
 		DBG(KERN_DEBUG "%s(%d, %p) mask 0x%x\n",
-			__FUNCTION__, irq, intr_dev, mask);
-		__do_IRQ(irq, regs);
+			__func__, irq, intr_dev, mask);
+		generic_handle_irq(irq);
 		mask &= ~(1 << local_irq);
 	} while (mask);
 
@@ -435,6 +425,21 @@ static void dino_choose_irq(struct parisc_device *dev, void *ctrl)
 	dino_assign_irq(dino, irq, &dev->irq);
 }
 
+
+/*
+ * Cirrus 6832 Cardbus reports wrong irq on RDI Tadpole PARISC Laptop (deller@gmx.de)
+ * (the irqs are off-by-one, not sure yet if this is a cirrus, dino-hardware or dino-driver problem...)
+ */
+static void quirk_cirrus_cardbus(struct pci_dev *dev)
+{
+	u8 new_irq = dev->irq - 1;
+	printk(KERN_INFO "PCI: Cirrus Cardbus IRQ fixup for %s, from %d to %d\n",
+			pci_name(dev), dev->irq, new_irq);
+	dev->irq = new_irq;
+}
+DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_6832, quirk_cirrus_cardbus );
+
+
 static void __init
 dino_bios_init(void)
 {
@@ -461,7 +466,7 @@ dino_card_setup(struct pci_bus *bus, void __iomem *base_addr)
 	res = &dino_dev->hba.lmmio_space;
 	res->flags = IORESOURCE_MEM;
 	size = scnprintf(name, sizeof(name), "Dino LMMIO (%s)", 
-			 bus->bridge->bus_id);
+			 dev_name(bus->bridge));
 	res->name = kmalloc(size+1, GFP_KERNEL);
 	if(res->name)
 		strcpy((char *)res->name, name);
@@ -472,15 +477,12 @@ dino_card_setup(struct pci_bus *bus, void __iomem *base_addr)
 	if (ccio_allocate_resource(dino_dev->hba.dev, res, _8MB,
 				F_EXTEND(0xf0000000UL) | _8MB,
 				F_EXTEND(0xffffffffUL) &~ _8MB, _8MB) < 0) {
-		struct list_head *ln, *tmp_ln;
+		struct pci_dev *dev, *tmp;
 
 		printk(KERN_ERR "Dino: cannot attach bus %s\n",
-		       bus->bridge->bus_id);
+		       dev_name(bus->bridge));
 		/* kill the bus, we can't do anything with it */
-		list_for_each_safe(ln, tmp_ln, &bus->devices) {
-			struct pci_dev *dev = pci_dev_b(ln);
-
-			list_del(&dev->global_list);
+		list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
 			list_del(&dev->bus_list);
 		}
 			
@@ -530,7 +532,7 @@ dino_card_fixup(struct pci_dev *dev)
 	** The additional "-1" adjusts for skewing the IRQ<->slot.
 	*/
 	dino_cfg_read(dev->bus, dev->devfn, PCI_INTERRUPT_PIN, 1, &irq_pin); 
-	dev->irq = (irq_pin + PCI_SLOT(dev->devfn) - 1) % 4 ;
+	dev->irq = pci_swizzle_interrupt_pin(dev, irq_pin) - 1;
 
 	/* Shouldn't really need to do this but it's in case someone tries
 	** to bypass PCI services and look at the card themselves.
@@ -545,32 +547,17 @@ dino_card_fixup(struct pci_dev *dev)
 static void __init
 dino_fixup_bus(struct pci_bus *bus)
 {
-	struct list_head *ln;
         struct pci_dev *dev;
         struct dino_device *dino_dev = DINO_DEV(parisc_walk_tree(bus->bridge));
-	int port_base = HBA_PORT_BASE(dino_dev->hba.hba_num);
 
 	DBG(KERN_WARNING "%s(0x%p) bus %d platform_data 0x%p\n",
-	    __FUNCTION__, bus, bus->secondary, 
+	    __func__, bus, bus->busn_res.start,
 	    bus->bridge->platform_data);
 
 	/* Firmware doesn't set up card-mode dino, so we have to */
 	if (is_card_dino(&dino_dev->hba.dev->id)) {
 		dino_card_setup(bus, dino_dev->hba.base_addr);
-	} else if(bus->parent == NULL) {
-		/* must have a dino above it, reparent the resources
-		 * into the dino window */
-		int i;
-		struct resource *res = &dino_dev->hba.lmmio_space;
-
-		bus->resource[0] = &(dino_dev->hba.io_space);
-		for(i = 0; i < DINO_MAX_LMMIO_RESOURCES; i++) {
-			if(res[i].flags == 0)
-				break;
-			bus->resource[i+1] = &res[i];
-		}
-
-	} else if(bus->self) {
+	} else if (bus->parent) {
 		int i;
 
 		pci_read_bridge_bases(bus);
@@ -593,23 +580,18 @@ dino_fixup_bus(struct pci_bus *bus)
 				
 			}
 					
-			DBG("DEBUG %s assigning %d [0x%lx,0x%lx]\n",
-			    bus->self->dev.bus_id, i,
-			    bus->self->resource[i].start,
-			    bus->self->resource[i].end);
-			pci_assign_resource(bus->self, i);
-			DBG("DEBUG %s after assign %d [0x%lx,0x%lx]\n",
-			    bus->self->dev.bus_id, i,
-			    bus->self->resource[i].start,
-			    bus->self->resource[i].end);
+			DBG("DEBUG %s assigning %d [%pR]\n",
+			    dev_name(&bus->self->dev), i,
+			    &bus->self->resource[i]);
+			WARN_ON(pci_assign_resource(bus->self, i));
+			DBG("DEBUG %s after assign %d [%pR]\n",
+			    dev_name(&bus->self->dev), i,
+			    &bus->self->resource[i]);
 		}
 	}
 
 
-	list_for_each(ln, &bus->devices) {
-		int i;
-
-		dev = pci_dev_b(ln);
+	list_for_each_entry(dev, &bus->devices, bus_list) {
 		if (is_card_dino(&dino_dev->hba.dev->id))
 			dino_card_fixup(dev);
 
@@ -620,21 +602,6 @@ dino_fixup_bus(struct pci_bus *bus)
 		if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)
 			continue;
 
-		/* Adjust the I/O Port space addresses */
-		for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-			struct resource *res = &dev->resource[i];
-			if (res->flags & IORESOURCE_IO) {
-				res->start |= port_base;
-				res->end |= port_base;
-			}
-#ifdef __LP64__
-			/* Sign Extend MMIO addresses */
-			else if (res->flags & IORESOURCE_MEM) {
-				res->start |= F_EXTEND(0UL);
-				res->end   |= F_EXTEND(0UL);
-			}
-#endif
-		}
 		/* null out the ROM resource if there is one (we don't
 		 * care about an expansion rom on parisc, since it
 		 * usually contains (x86) bios code) */
@@ -655,7 +622,7 @@ dino_fixup_bus(struct pci_bus *bus)
 			
 			dino_cfg_read(dev->bus, dev->devfn, 
 				      PCI_INTERRUPT_PIN, 1, &irq_pin);
-			irq_pin = (irq_pin + PCI_SLOT(dev->devfn) - 1) % 4 ;
+			irq_pin = pci_swizzle_interrupt_pin(dev, irq_pin) - 1;
 			printk(KERN_WARNING "Device %s has undefined IRQ, "
 					"setting to %d\n", pci_name(dev), irq_pin);
 			dino_cfg_write(dev->bus, dev->devfn, 
@@ -666,7 +633,6 @@ dino_fixup_bus(struct pci_bus *bus)
 			printk(KERN_WARNING "Device %s has unassigned IRQ\n", pci_name(dev));
 #endif
 		} else {
-
 			/* Adjust INT_LINE for that busses region */
 			dino_assign_irq(dino_dev, dev->irq, &dev->irq);
 		}
@@ -674,7 +640,7 @@ dino_fixup_bus(struct pci_bus *bus)
 }
 
 
-struct pci_bios_ops dino_bios_ops = {
+static struct pci_bios_ops dino_bios_ops = {
 	.init		= dino_bios_init,
 	.fixup_bus	= dino_fixup_bus
 };
@@ -769,7 +735,7 @@ 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,
@@ -803,7 +769,8 @@ dino_bridge_init(struct dino_device *dino_dev, const char *name)
 
 		result = ccio_request_resource(dino_dev->hba.dev, &res[i]);
 		if (result < 0) {
-			printk(KERN_ERR "%s: failed to claim PCI Bus address space %d (0x%lx-0x%lx)!\n", name, i, res[i].start, res[i].end);
+			printk(KERN_ERR "%s: failed to claim PCI Bus address "
+			       "space %d (%pR)!\n", name, i, &res[i]);
 			return result;
 		}
 	}
@@ -872,7 +839,7 @@ static int __init dino_common_init(struct parisc_device *dev,
 
 	/* allocate I/O Port resource region */
 	res = &dino_dev->hba.io_space;
-	if (dev->id.hversion == 0x680 || is_card_dino(&dev->id)) {
+	if (!is_cujo(&dev->id)) {
 		res->name = "Dino I/O Port";
 	} else {
 		res->name = "Cujo I/O Port";
@@ -883,7 +850,8 @@ static int __init dino_common_init(struct parisc_device *dev,
 	if (request_resource(&ioport_resource, res) < 0) {
 		printk(KERN_ERR "%s: request I/O Port region failed "
 		       "0x%lx/%lx (hpa 0x%p)\n",
-		       name, res->start, res->end, dino_dev->hba.base_addr);
+		       name, (unsigned long)res->start, (unsigned long)res->end,
+		       dino_dev->hba.base_addr);
 		return 1;
 	}
 
@@ -920,14 +888,16 @@ static int __init dino_probe(struct parisc_device *dev)
 	const char *version = "unknown";
 	char *name;
 	int is_cujo = 0;
+	LIST_HEAD(resources);
 	struct pci_bus *bus;
 	unsigned long hpa = dev->hpa.start;
+	int max;
 
 	name = "Dino";
 	if (is_card_dino(&dev->id)) {
 		version = "3.x (card mode)";
 	} else {
-		if(dev->id.hversion == 0x680) {
+		if (!is_cujo(&dev->id)) {
 			if (dev->id.hversion_rev < 4) {
 				version = dino_vers[dev->id.hversion_rev];
 			}
@@ -973,16 +943,14 @@ static int __init dino_probe(struct parisc_device *dev)
 */
 	}
 
-	dino_dev = kmalloc(sizeof(struct dino_device), GFP_KERNEL);
+	dino_dev = kzalloc(sizeof(struct dino_device), GFP_KERNEL);
 	if (!dino_dev) {
 		printk("dino_init_chip - couldn't alloc dino_device\n");
 		return 1;
 	}
 
-	memset(dino_dev, 0, sizeof(struct dino_device));
-
 	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);
@@ -998,25 +966,45 @@ static int __init dino_probe(struct parisc_device *dev)
 
 	dev->dev.platform_data = dino_dev;
 
+	pci_add_resource_offset(&resources, &dino_dev->hba.io_space,
+				HBA_PORT_BASE(dino_dev->hba.hba_num));
+	if (dino_dev->hba.lmmio_space.flags)
+		pci_add_resource_offset(&resources, &dino_dev->hba.lmmio_space,
+					dino_dev->hba.lmmio_space_offset);
+	if (dino_dev->hba.elmmio_space.flags)
+		pci_add_resource_offset(&resources, &dino_dev->hba.elmmio_space,
+					dino_dev->hba.lmmio_space_offset);
+	if (dino_dev->hba.gmmio_space.flags)
+		pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
+
+	dino_dev->hba.bus_num.start = dino_current_bus;
+	dino_dev->hba.bus_num.end = 255;
+	dino_dev->hba.bus_num.flags = IORESOURCE_BUS;
+	pci_add_resource(&resources, &dino_dev->hba.bus_num);
 	/*
 	** It's not used to avoid chicken/egg problems
 	** with configuration accessor functions.
 	*/
-	bus = pci_scan_bus_parented(&dev->dev, dino_current_bus,
-				    &dino_cfg_ops, NULL);
-	if(bus) {
-		pci_bus_add_devices(bus);
-		/* This code *depends* on scanning being single threaded
-		 * if it isn't, this global bus number count will fail
-		 */
-		dino_current_bus = bus->subordinate + 1;
-		pci_bus_assign_resources(bus);
-	} else {
-		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (probably duplicate bus number %d)\n", dev->dev.bus_id, dino_current_bus);
+	dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev,
+			 dino_current_bus, &dino_cfg_ops, NULL, &resources);
+	if (!bus) {
+		printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n",
+		       dev_name(&dev->dev), dino_current_bus);
+		pci_free_resource_list(&resources);
 		/* increment the bus number in case of duplicates */
 		dino_current_bus++;
+		return 0;
 	}
-	dino_dev->hba.hba_bus = bus;
+
+	max = pci_scan_child_bus(bus);
+	pci_bus_update_busn_res_end(bus, max);
+
+	/* This code *depends* on scanning being single threaded
+	 * if it isn't, this global bus number count will fail
+	 */
+	dino_current_bus = max + 1;
+	pci_bus_assign_resources(bus);
+	pci_bus_add_devices(bus);
 	return 0;
 }