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Diffstat (limited to 'arch/powerpc/kernel/pci_32.c')
-rw-r--r--arch/powerpc/kernel/pci_32.c149
1 files changed, 105 insertions, 44 deletions
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index c858eb4bef17..9b49f8691d29 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -2,7 +2,6 @@
* Common pmac/prep/chrp pci routines. -- Cort
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/delay.h>
@@ -12,6 +11,7 @@
#include <linux/sched.h>
#include <linux/errno.h>
#include <linux/bootmem.h>
+#include <linux/irq.h>
#include <asm/processor.h>
#include <asm/io.h>
@@ -19,7 +19,6 @@
#include <asm/sections.h>
#include <asm/pci-bridge.h>
#include <asm/byteorder.h>
-#include <asm/irq.h>
#include <asm/uaccess.h>
#include <asm/machdep.h>
@@ -99,7 +98,7 @@ pcibios_fixup_resources(struct pci_dev *dev)
if (!res->flags)
continue;
if (res->end == 0xffffffff) {
- DBG("PCI:%s Resource %d [%08lx-%08lx] is unassigned\n",
+ DBG("PCI:%s Resource %d [%016llx-%016llx] is unassigned\n",
pci_name(dev), i, res->start, res->end);
res->end -= res->start;
res->start = 0;
@@ -117,7 +116,7 @@ pcibios_fixup_resources(struct pci_dev *dev)
res->start += offset;
res->end += offset;
#ifdef DEBUG
- printk("Fixup res %d (%lx) of dev %s: %lx -> %lx\n",
+ printk("Fixup res %d (%lx) of dev %s: %llx -> %llx\n",
i, res->flags, pci_name(dev),
res->start - offset, res->start);
#endif
@@ -173,18 +172,18 @@ EXPORT_SYMBOL(pcibios_bus_to_resource);
* but we want to try to avoid allocating at 0x2900-0x2bff
* which might have be mirrored at 0x0100-0x03ff..
*/
-void pcibios_align_resource(void *data, struct resource *res, unsigned long size,
- unsigned long align)
+void pcibios_align_resource(void *data, struct resource *res,
+ resource_size_t size, resource_size_t align)
{
struct pci_dev *dev = data;
if (res->flags & IORESOURCE_IO) {
- unsigned long start = res->start;
+ resource_size_t start = res->start;
if (size > 0x100) {
printk(KERN_ERR "PCI: I/O Region %s/%d too large"
- " (%ld bytes)\n", pci_name(dev),
- dev->resource - res, size);
+ " (%lld bytes)\n", pci_name(dev),
+ dev->resource - res, (unsigned long long)size);
}
if (start & 0x300) {
@@ -255,8 +254,8 @@ pcibios_allocate_bus_resources(struct list_head *bus_list)
}
}
- DBG("PCI: bridge rsrc %lx..%lx (%lx), parent %p\n",
- res->start, res->end, res->flags, pr);
+ DBG("PCI: bridge rsrc %llx..%llx (%lx), parent %p\n",
+ res->start, res->end, res->flags, pr);
if (pr) {
if (request_resource(pr, res) == 0)
continue;
@@ -306,7 +305,7 @@ reparent_resources(struct resource *parent, struct resource *res)
*pp = NULL;
for (p = res->child; p != NULL; p = p->sibling) {
p->parent = res;
- DBG(KERN_INFO "PCI: reparented %s [%lx..%lx] under %s\n",
+ DBG(KERN_INFO "PCI: reparented %s [%llx..%llx] under %s\n",
p->name, p->start, p->end, res->name);
}
return 0;
@@ -362,13 +361,14 @@ pci_relocate_bridge_resource(struct pci_bus *bus, int i)
try = conflict->start - 1;
}
if (request_resource(pr, res)) {
- DBG(KERN_ERR "PCI: huh? couldn't move to %lx..%lx\n",
+ DBG(KERN_ERR "PCI: huh? couldn't move to %llx..%llx\n",
res->start, res->end);
return -1; /* "can't happen" */
}
update_bridge_base(bus, i);
- printk(KERN_INFO "PCI: bridge %d resource %d moved to %lx..%lx\n",
- bus->number, i, res->start, res->end);
+ printk(KERN_INFO "PCI: bridge %d resource %d moved to %llx..%llx\n",
+ bus->number, i, (unsigned long long)res->start,
+ (unsigned long long)res->end);
return 0;
}
@@ -479,14 +479,14 @@ static inline void alloc_resource(struct pci_dev *dev, int idx)
{
struct resource *pr, *r = &dev->resource[idx];
- DBG("PCI:%s: Resource %d: %08lx-%08lx (f=%lx)\n",
+ DBG("PCI:%s: Resource %d: %016llx-%016llx (f=%lx)\n",
pci_name(dev), idx, r->start, r->end, r->flags);
pr = pci_find_parent_resource(dev, r);
if (!pr || request_resource(pr, r) < 0) {
printk(KERN_ERR "PCI: Cannot allocate resource region %d"
" of device %s\n", idx, pci_name(dev));
if (pr)
- DBG("PCI: parent is %p: %08lx-%08lx (f=%lx)\n",
+ DBG("PCI: parent is %p: %016llx-%016llx (f=%lx)\n",
pr, pr->start, pr->end, pr->flags);
/* We'll assign a new address later */
r->flags |= IORESOURCE_UNSET;
@@ -633,12 +633,12 @@ pcibios_alloc_controller(void)
static void
make_one_node_map(struct device_node* node, u8 pci_bus)
{
- int *bus_range;
+ const int *bus_range;
int len;
if (pci_bus >= pci_bus_count)
return;
- bus_range = (int *) get_property(node, "bus-range", &len);
+ bus_range = get_property(node, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int)) {
printk(KERN_WARNING "Can't get bus-range for %s, "
"assuming it starts at 0\n", node->full_name);
@@ -648,13 +648,13 @@ make_one_node_map(struct device_node* node, u8 pci_bus)
for (node=node->child; node != 0;node = node->sibling) {
struct pci_dev* dev;
- unsigned int *class_code, *reg;
+ const unsigned int *class_code, *reg;
- class_code = (unsigned int *) get_property(node, "class-code", NULL);
+ class_code = get_property(node, "class-code", NULL);
if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI &&
(*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS))
continue;
- reg = (unsigned int *)get_property(node, "reg", NULL);
+ reg = get_property(node, "reg", NULL);
if (!reg)
continue;
dev = pci_find_slot(pci_bus, ((reg[0] >> 8) & 0xff));
@@ -669,7 +669,7 @@ pcibios_make_OF_bus_map(void)
{
int i;
struct pci_controller* hose;
- u8* of_prop_map;
+ struct property *map_prop;
pci_to_OF_bus_map = (u8*)kmalloc(pci_bus_count, GFP_KERNEL);
if (!pci_to_OF_bus_map) {
@@ -691,9 +691,12 @@ pcibios_make_OF_bus_map(void)
continue;
make_one_node_map(node, hose->first_busno);
}
- of_prop_map = get_property(find_path_device("/"), "pci-OF-bus-map", NULL);
- if (of_prop_map)
- memcpy(of_prop_map, pci_to_OF_bus_map, pci_bus_count);
+ map_prop = of_find_property(find_path_device("/"),
+ "pci-OF-bus-map", NULL);
+ if (map_prop) {
+ BUG_ON(pci_bus_count > map_prop->length);
+ memcpy(map_prop->value, pci_to_OF_bus_map, pci_bus_count);
+ }
#ifdef DEBUG
printk("PCI->OF bus map:\n");
for (i=0; i<pci_bus_count; i++) {
@@ -712,7 +715,7 @@ scan_OF_pci_childs(struct device_node* node, pci_OF_scan_iterator filter, void*
struct device_node* sub_node;
for (; node != 0;node = node->sibling) {
- unsigned int *class_code;
+ const unsigned int *class_code;
if (filter(node, data))
return node;
@@ -722,7 +725,7 @@ scan_OF_pci_childs(struct device_node* node, pci_OF_scan_iterator filter, void*
* a fake root for all functions of a multi-function device,
* we go down them as well.
*/
- class_code = (unsigned int *) get_property(node, "class-code", NULL);
+ class_code = get_property(node, "class-code", NULL);
if ((!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI &&
(*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS)) &&
strcmp(node->name, "multifunc-device"))
@@ -737,10 +740,10 @@ scan_OF_pci_childs(struct device_node* node, pci_OF_scan_iterator filter, void*
static int
scan_OF_pci_childs_iterator(struct device_node* node, void* data)
{
- unsigned int *reg;
+ const unsigned int *reg;
u8* fdata = (u8*)data;
- reg = (unsigned int *) get_property(node, "reg", NULL);
+ reg = get_property(node, "reg", NULL);
if (reg && ((reg[0] >> 8) & 0xff) == fdata[1]
&& ((reg[0] >> 16) & 0xff) == fdata[0])
return 1;
@@ -841,7 +844,7 @@ find_OF_pci_device_filter(struct device_node* node, void* data)
int
pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn)
{
- unsigned int *reg;
+ const unsigned int *reg;
struct pci_controller* hose;
struct pci_dev* dev = NULL;
@@ -854,7 +857,7 @@ pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn)
if (!scan_OF_pci_childs(((struct device_node*)hose->arch_data)->child,
find_OF_pci_device_filter, (void *)node))
return -ENODEV;
- reg = (unsigned int *) get_property(node, "reg", NULL);
+ reg = get_property(node, "reg", NULL);
if (!reg)
return -ENODEV;
*bus = (reg[0] >> 16) & 0xff;
@@ -885,8 +888,8 @@ pci_process_bridge_OF_ranges(struct pci_controller *hose,
struct device_node *dev, int primary)
{
static unsigned int static_lc_ranges[256] __initdata;
- unsigned int *dt_ranges, *lc_ranges, *ranges, *prev;
- unsigned int size;
+ const unsigned int *dt_ranges;
+ unsigned int *lc_ranges, *ranges, *prev, size;
int rlen = 0, orig_rlen;
int memno = 0;
struct resource *res;
@@ -897,7 +900,7 @@ pci_process_bridge_OF_ranges(struct pci_controller *hose,
* that can have more than 3 ranges, fortunately using contiguous
* addresses -- BenH
*/
- dt_ranges = (unsigned int *) get_property(dev, "ranges", &rlen);
+ dt_ranges = get_property(dev, "ranges", &rlen);
if (!dt_ranges)
return;
/* Sanity check, though hopefully that never happens */
@@ -956,7 +959,7 @@ pci_process_bridge_OF_ranges(struct pci_controller *hose,
res = &hose->io_resource;
res->flags = IORESOURCE_IO;
res->start = ranges[2];
- DBG("PCI: IO 0x%lx -> 0x%lx\n",
+ DBG("PCI: IO 0x%llx -> 0x%llx\n",
res->start, res->start + size - 1);
break;
case 2: /* memory space */
@@ -978,7 +981,7 @@ pci_process_bridge_OF_ranges(struct pci_controller *hose,
if(ranges[0] & 0x40000000)
res->flags |= IORESOURCE_PREFETCH;
res->start = ranges[na+2];
- DBG("PCI: MEM[%d] 0x%lx -> 0x%lx\n", memno,
+ DBG("PCI: MEM[%d] 0x%llx -> 0x%llx\n", memno,
res->start, res->start + size - 1);
}
break;
@@ -1074,7 +1077,7 @@ do_update_p2p_io_resource(struct pci_bus *bus, int enable_vga)
DBG("Remapping Bus %d, bridge: %s\n", bus->number, pci_name(bridge));
res.start -= ((unsigned long) hose->io_base_virt - isa_io_base);
res.end -= ((unsigned long) hose->io_base_virt - isa_io_base);
- DBG(" IO window: %08lx-%08lx\n", res.start, res.end);
+ DBG(" IO window: %016llx-%016llx\n", res.start, res.end);
/* Set up the top and bottom of the PCI I/O segment for this bus. */
pci_read_config_dword(bridge, PCI_IO_BASE, &l);
@@ -1223,8 +1226,8 @@ do_fixup_p2p_level(struct pci_bus *bus)
continue;
if ((r->flags & IORESOURCE_IO) == 0)
continue;
- DBG("Trying to allocate from %08lx, size %08lx from parent"
- " res %d: %08lx -> %08lx\n",
+ DBG("Trying to allocate from %016llx, size %016llx from parent"
+ " res %d: %016llx -> %016llx\n",
res->start, res->end, i, r->start, r->end);
if (allocate_resource(r, res, res->end + 1, res->start, max,
@@ -1404,6 +1407,65 @@ pcibios_update_irq(struct pci_dev *dev, int irq)
/* XXX FIXME - update OF device tree node interrupt property */
}
+#ifdef CONFIG_PPC_MERGE
+/* XXX This is a copy of the ppc64 version. This is temporary until we start
+ * merging the 2 PCI layers
+ */
+/*
+ * Reads the interrupt pin to determine if interrupt is use by card.
+ * If the interrupt is used, then gets the interrupt line from the
+ * openfirmware and sets it in the pci_dev and pci_config line.
+ */
+int pci_read_irq_line(struct pci_dev *pci_dev)
+{
+ struct of_irq oirq;
+ unsigned int virq;
+
+ DBG("Try to map irq for %s...\n", pci_name(pci_dev));
+
+ /* Try to get a mapping from the device-tree */
+ if (of_irq_map_pci(pci_dev, &oirq)) {
+ u8 line, pin;
+
+ /* If that fails, lets fallback to what is in the config
+ * space and map that through the default controller. We
+ * also set the type to level low since that's what PCI
+ * interrupts are. If your platform does differently, then
+ * either provide a proper interrupt tree or don't use this
+ * function.
+ */
+ if (pci_read_config_byte(pci_dev, PCI_INTERRUPT_PIN, &pin))
+ return -1;
+ if (pin == 0)
+ return -1;
+ if (pci_read_config_byte(pci_dev, PCI_INTERRUPT_LINE, &line) ||
+ line == 0xff) {
+ return -1;
+ }
+ DBG(" -> no map ! Using irq line %d from PCI config\n", line);
+
+ virq = irq_create_mapping(NULL, line);
+ if (virq != NO_IRQ)
+ set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
+ } else {
+ DBG(" -> got one, spec %d cells (0x%08x...) on %s\n",
+ oirq.size, oirq.specifier[0], oirq.controller->full_name);
+
+ virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
+ oirq.size);
+ }
+ if(virq == NO_IRQ) {
+ DBG(" -> failed to map !\n");
+ return -1;
+ }
+ pci_dev->irq = virq;
+ pci_write_config_byte(pci_dev, PCI_INTERRUPT_LINE, virq);
+
+ return 0;
+}
+EXPORT_SYMBOL(pci_read_irq_line);
+#endif /* CONFIG_PPC_MERGE */
+
int pcibios_enable_device(struct pci_dev *dev, int mask)
{
u16 cmd, old_cmd;
@@ -1574,8 +1636,8 @@ static pgprot_t __pci_mmap_set_pgprot(struct pci_dev *dev, struct resource *rp,
else
prot |= _PAGE_GUARDED;
- printk("PCI map for %s:%lx, prot: %lx\n", pci_name(dev), rp->start,
- prot);
+ printk("PCI map for %s:%llx, prot: %lx\n", pci_name(dev),
+ (unsigned long long)rp->start, prot);
return __pgprot(prot);
}
@@ -1654,7 +1716,6 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
return -EINVAL;
vma->vm_pgoff = offset >> PAGE_SHIFT;
- vma->vm_flags |= VM_SHM | VM_LOCKED | VM_IO;
vma->vm_page_prot = __pci_mmap_set_pgprot(dev, rp,
vma->vm_page_prot,
mmap_state, write_combine);
@@ -1756,7 +1817,7 @@ long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn)
void pci_resource_to_user(const struct pci_dev *dev, int bar,
const struct resource *rsrc,
- u64 *start, u64 *end)
+ resource_size_t *start, resource_size_t *end)
{
struct pci_controller *hose = pci_bus_to_hose(dev->bus->number);
unsigned long offset = 0;
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