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Diffstat (limited to 'arch/sparc64/kernel/pci.c')
-rw-r--r--arch/sparc64/kernel/pci.c182
1 files changed, 29 insertions, 153 deletions
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index 80dad76f8b8..bdb7c0a6d83 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -18,32 +18,17 @@
#include <linux/msi.h>
#include <linux/irq.h>
#include <linux/init.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/irq.h>
-#include <asm/ebus.h>
#include <asm/prom.h>
#include <asm/apb.h>
#include "pci_impl.h"
-#ifndef CONFIG_PCI
-/* A "nop" PCI implementation. */
-asmlinkage int sys_pciconfig_read(unsigned long bus, unsigned long dfn,
- unsigned long off, unsigned long len,
- unsigned char *buf)
-{
- return 0;
-}
-asmlinkage int sys_pciconfig_write(unsigned long bus, unsigned long dfn,
- unsigned long off, unsigned long len,
- unsigned char *buf)
-{
- return 0;
-}
-#else
-
/* List of all PCI controllers found in the system. */
struct pci_pbm_info *pci_pbm_root = NULL;
@@ -179,97 +164,6 @@ void pci_config_write32(u32 *addr, u32 val)
spin_unlock_irqrestore(&pci_poke_lock, flags);
}
-/* Probe for all PCI controllers in the system. */
-extern void sabre_init(struct device_node *, const char *);
-extern void psycho_init(struct device_node *, const char *);
-extern void schizo_init(struct device_node *, const char *);
-extern void schizo_plus_init(struct device_node *, const char *);
-extern void tomatillo_init(struct device_node *, const char *);
-extern void sun4v_pci_init(struct device_node *, const char *);
-extern void fire_pci_init(struct device_node *, const char *);
-
-static struct {
- char *model_name;
- void (*init)(struct device_node *, const char *);
-} pci_controller_table[] __initdata = {
- { "SUNW,sabre", sabre_init },
- { "pci108e,a000", sabre_init },
- { "pci108e,a001", sabre_init },
- { "SUNW,psycho", psycho_init },
- { "pci108e,8000", psycho_init },
- { "SUNW,schizo", schizo_init },
- { "pci108e,8001", schizo_init },
- { "SUNW,schizo+", schizo_plus_init },
- { "pci108e,8002", schizo_plus_init },
- { "SUNW,tomatillo", tomatillo_init },
- { "pci108e,a801", tomatillo_init },
- { "SUNW,sun4v-pci", sun4v_pci_init },
- { "pciex108e,80f0", fire_pci_init },
-};
-#define PCI_NUM_CONTROLLER_TYPES ARRAY_SIZE(pci_controller_table)
-
-static int __init pci_controller_init(const char *model_name, int namelen, struct device_node *dp)
-{
- int i;
-
- for (i = 0; i < PCI_NUM_CONTROLLER_TYPES; i++) {
- if (!strncmp(model_name,
- pci_controller_table[i].model_name,
- namelen)) {
- pci_controller_table[i].init(dp, model_name);
- return 1;
- }
- }
-
- return 0;
-}
-
-static int __init pci_controller_scan(int (*handler)(const char *, int, struct device_node *))
-{
- struct device_node *dp;
- int count = 0;
-
- for_each_node_by_name(dp, "pci") {
- struct property *prop;
- int len;
-
- prop = of_find_property(dp, "model", &len);
- if (!prop)
- prop = of_find_property(dp, "compatible", &len);
-
- if (prop) {
- const char *model = prop->value;
- int item_len = 0;
-
- /* Our value may be a multi-valued string in the
- * case of some compatible properties. For sanity,
- * only try the first one.
- */
- while (model[item_len] && len) {
- len--;
- item_len++;
- }
-
- if (handler(model, item_len, dp))
- count++;
- }
- }
-
- return count;
-}
-
-/* Find each controller in the system, attach and initialize
- * software state structure for each and link into the
- * pci_pbm_root. Setup the controller enough such
- * that bus scanning can be done.
- */
-static void __init pci_controller_probe(void)
-{
- printk("PCI: Probing for controllers.\n");
-
- pci_controller_scan(pci_controller_init);
-}
-
static int ofpci_verbose;
static int __init ofpci_debug(char *str)
@@ -348,11 +242,12 @@ static void pci_parse_of_addrs(struct of_device *op,
}
}
-struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
- struct device_node *node,
- struct pci_bus *bus, int devfn)
+static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
+ struct device_node *node,
+ struct pci_bus *bus, int devfn)
{
struct dev_archdata *sd;
+ struct of_device *op;
struct pci_dev *dev;
const char *type;
u32 class;
@@ -366,14 +261,17 @@ struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
sd->stc = &pbm->stc;
sd->host_controller = pbm;
sd->prom_node = node;
- sd->op = of_find_device_by_node(node);
+ sd->op = op = of_find_device_by_node(node);
sd->numa_node = pbm->numa_node;
- sd = &sd->op->dev.archdata;
+ sd = &op->dev.archdata;
sd->iommu = pbm->iommu;
sd->stc = &pbm->stc;
sd->numa_node = pbm->numa_node;
+ if (!strcmp(node->name, "ebus"))
+ of_propagate_archdata(op);
+
type = of_get_property(node, "device_type", NULL);
if (type == NULL)
type = "";
@@ -775,15 +673,15 @@ static void __devinit pci_bus_register_of_sysfs(struct pci_bus *bus)
pci_bus_register_of_sysfs(child_bus);
}
-struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm)
+struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm,
+ struct device *parent)
{
- struct device_node *node = pbm->prom_node;
+ struct device_node *node = pbm->op->node;
struct pci_bus *bus;
printk("PCI: Scanning PBM %s\n", node->full_name);
- /* XXX parent device? XXX */
- bus = pci_create_bus(NULL, pbm->pci_first_busno, pbm->pci_ops, pbm);
+ bus = pci_create_bus(parent, pbm->pci_first_busno, pbm->pci_ops, pbm);
if (!bus) {
printk(KERN_ERR "Failed to create bus for %s\n",
node->full_name);
@@ -802,32 +700,6 @@ struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm)
return bus;
}
-static void __init pci_scan_each_controller_bus(void)
-{
- struct pci_pbm_info *pbm;
-
- for (pbm = pci_pbm_root; pbm; pbm = pbm->next)
- pbm->scan_bus(pbm);
-}
-
-extern void power_init(void);
-
-static int __init pcibios_init(void)
-{
- pci_controller_probe();
- if (pci_pbm_root == NULL)
- return 0;
-
- pci_scan_each_controller_bus();
-
- ebus_init();
- power_init();
-
- return 0;
-}
-
-subsys_initcall(pcibios_init);
-
void __devinit pcibios_fixup_bus(struct pci_bus *pbus)
{
struct pci_pbm_info *pbm = pbus->sysdata;
@@ -1017,6 +889,7 @@ static int __pci_mmap_make_offset(struct pci_dev *pdev,
for (i = 0; i <= PCI_ROM_RESOURCE; i++) {
struct resource *rp = &pdev->resource[i];
+ resource_size_t aligned_end;
/* Active? */
if (!rp->flags)
@@ -1034,8 +907,15 @@ static int __pci_mmap_make_offset(struct pci_dev *pdev,
continue;
}
+ /* Align the resource end to the next page address.
+ * PAGE_SIZE intentionally added instead of (PAGE_SIZE - 1),
+ * because actually we need the address of the next byte
+ * after rp->end.
+ */
+ aligned_end = (rp->end + PAGE_SIZE) & PAGE_MASK;
+
if ((rp->start <= user_paddr) &&
- (user_paddr + user_size) <= (rp->end + 1UL))
+ (user_paddr + user_size) <= aligned_end)
break;
}
@@ -1105,14 +985,14 @@ int pcibus_to_node(struct pci_bus *pbus)
EXPORT_SYMBOL(pcibus_to_node);
#endif
-/* Return the domain nuber for this pci bus */
+/* Return the domain number for this pci bus */
int pci_domain_nr(struct pci_bus *pbus)
{
struct pci_pbm_info *pbm = pbus->sysdata;
int ret;
- if (pbm == NULL || pbm->parent == NULL) {
+ if (!pbm) {
ret = -ENXIO;
} else {
ret = pbm->index;
@@ -1126,7 +1006,7 @@ EXPORT_SYMBOL(pci_domain_nr);
int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
{
struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
- int virt_irq;
+ unsigned int virt_irq;
if (!pbm->setup_msi_irq)
return -EINVAL;
@@ -1140,10 +1020,8 @@ void arch_teardown_msi_irq(unsigned int virt_irq)
struct pci_dev *pdev = entry->dev;
struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
- if (!pbm->teardown_msi_irq)
- return;
-
- return pbm->teardown_msi_irq(virt_irq, pdev);
+ if (pbm->teardown_msi_irq)
+ pbm->teardown_msi_irq(virt_irq, pdev);
}
#endif /* !(CONFIG_PCI_MSI) */
@@ -1215,5 +1093,3 @@ void pci_resource_to_user(const struct pci_dev *pdev, int bar,
*start = rp->start - offset;
*end = rp->end - offset;
}
-
-#endif /* !(CONFIG_PCI) */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 11:07:18 +0000