* Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz)
*/
-#include <linux/config.h>
+#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/sched.h>
#include <asm/uaccess.h>
#include <asm/pbm.h>
+#include <asm/pgtable.h>
#include <asm/irq.h>
#include <asm/ebus.h>
#include <asm/isa.h>
+#include <asm/prom.h>
unsigned long pci_memspace_mask = 0xffffffffUL;
#else
/* List of all PCI controllers found in the system. */
-spinlock_t pci_controller_lock = SPIN_LOCK_UNLOCKED;
struct pci_controller_info *pci_controller_root = NULL;
/* Each PCI controller found gets a unique index. */
int pci_num_controllers = 0;
-/* At boot time the user can give the kernel a command
- * line option which controls if and how PCI devices
- * are reordered at PCI bus probing time.
- */
-int pci_device_reorder = 0;
-
volatile int pci_poke_in_progress;
volatile int pci_poke_cpu = -1;
volatile int pci_poke_faulted;
-static spinlock_t pci_poke_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(pci_poke_lock);
void pci_config_read8(u8 *addr, u8 *ret)
{
}
/* Probe for all PCI controllers in the system. */
-extern void sabre_init(int, char *);
-extern void psycho_init(int, char *);
-extern void schizo_init(int, char *);
-extern void schizo_plus_init(int, char *);
-extern void tomatillo_init(int, char *);
+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 *);
static struct {
char *model_name;
- void (*init)(int, char *);
+ void (*init)(struct device_node *, const char *);
} pci_controller_table[] __initdata = {
{ "SUNW,sabre", sabre_init },
{ "pci108e,a000", sabre_init },
{ "pci108e,8002", schizo_plus_init },
{ "SUNW,tomatillo", tomatillo_init },
{ "pci108e,a801", tomatillo_init },
+ { "SUNW,sun4v-pci", sun4v_pci_init },
};
#define PCI_NUM_CONTROLLER_TYPES (sizeof(pci_controller_table) / \
sizeof(pci_controller_table[0]))
-static int __init pci_controller_init(char *model_name, int namelen, int node)
+static int __init pci_controller_init(const char *model_name, int namelen, struct device_node *dp)
{
int i;
if (!strncmp(model_name,
pci_controller_table[i].model_name,
namelen)) {
- pci_controller_table[i].init(node, model_name);
+ pci_controller_table[i].init(dp, model_name);
return 1;
}
}
- printk("PCI: Warning unknown controller, model name [%s]\n",
- model_name);
- printk("PCI: Ignoring controller...\n");
return 0;
}
-static int __init pci_is_controller(char *model_name, int namelen, int node)
+static int __init pci_is_controller(const char *model_name, int namelen, struct device_node *dp)
{
int i;
return 0;
}
-static int __init pci_controller_scan(int (*handler)(char *, int, int))
+static int __init pci_controller_scan(int (*handler)(const char *, int, struct device_node *))
{
- char namebuf[64];
- int node;
+ struct device_node *dp;
int count = 0;
- node = prom_getchild(prom_root_node);
- while ((node = prom_searchsiblings(node, "pci")) != 0) {
+ for_each_node_by_name(dp, "pci") {
+ struct property *prop;
int len;
- if ((len = prom_getproperty(node, "model", namebuf, sizeof(namebuf))) > 0 ||
- (len = prom_getproperty(node, "compatible", namebuf, sizeof(namebuf))) > 0) {
+ 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 (namebuf[item_len] && len) {
+ * only try the first one.
+ */
+ while (model[item_len] && len) {
len--;
item_len++;
}
- if (handler(namebuf, item_len, node))
+ if (handler(model, item_len, dp))
count++;
}
-
- node = prom_getsibling(node);
- if (!node)
- break;
}
return count;
return pci_controller_scan(pci_is_controller);
}
+struct pci_iommu_ops *pci_iommu_ops;
+EXPORT_SYMBOL(pci_iommu_ops);
+
+extern struct pci_iommu_ops pci_sun4u_iommu_ops,
+ pci_sun4v_iommu_ops;
+
/* Find each controller in the system, attach and initialize
* software state structure for each and link into the
* pci_controller_root. Setup the controller enough such
*/
static void __init pci_controller_probe(void)
{
+ if (tlb_type == hypervisor)
+ pci_iommu_ops = &pci_sun4v_iommu_ops;
+ else
+ pci_iommu_ops = &pci_sun4u_iommu_ops;
+
printk("PCI: Probing for controllers.\n");
pci_controller_scan(pci_controller_init);
static void __init pci_scan_each_controller_bus(void)
{
struct pci_controller_info *p;
- unsigned long flags;
- spin_lock_irqsave(&pci_controller_lock, flags);
for (p = pci_controller_root; p; p = p->next)
p->scan_bus(p);
- spin_unlock_irqrestore(&pci_controller_lock, flags);
}
-/* Reorder the pci_dev chain, so that onboard devices come first
- * and then come the pluggable cards.
- */
-static void __init pci_reorder_devs(void)
-{
- struct list_head *pci_onboard = &pci_devices;
- struct list_head *walk = pci_onboard->next;
-
- while (walk != pci_onboard) {
- struct pci_dev *pdev = pci_dev_g(walk);
- struct list_head *walk_next = walk->next;
-
- if (pdev->irq && (__irq_ino(pdev->irq) & 0x20)) {
- list_del(walk);
- list_add(walk, pci_onboard);
- }
-
- walk = walk_next;
- }
-}
-
-extern void clock_probe(void);
extern void power_init(void);
static int __init pcibios_init(void)
pci_scan_each_controller_bus();
- if (pci_device_reorder)
- pci_reorder_devs();
-
isa_init();
ebus_init();
- clock_probe();
power_init();
return 0;
subsys_initcall(pcibios_init);
-struct pci_fixup pcibios_fixups[] = {
- { 0 }
-};
-
void pcibios_fixup_bus(struct pci_bus *pbus)
{
struct pci_pbm_info *pbm = pbus->sysdata;
pbus->resource[1] = &pbm->mem_space;
}
-int pci_claim_resource(struct pci_dev *pdev, int resource)
+struct resource *pcibios_select_root(struct pci_dev *pdev, struct resource *r)
{
struct pci_pbm_info *pbm = pdev->bus->sysdata;
- struct resource *res = &pdev->resource[resource];
- struct resource *root;
-
- if (!pbm)
- return -EINVAL;
+ struct resource *root = NULL;
- if (res->flags & IORESOURCE_IO)
+ if (r->flags & IORESOURCE_IO)
root = &pbm->io_space;
- else
+ if (r->flags & IORESOURCE_MEM)
root = &pbm->mem_space;
- pbm->parent->resource_adjust(pdev, res, root);
-
- return request_resource(root, res);
-}
-
-/*
- * Given the PCI bus a device resides on, try to
- * find an acceptable resource allocation for a
- * specific device resource..
- */
-static int pci_assign_bus_resource(const struct pci_bus *bus,
- struct pci_dev *dev,
- struct resource *res,
- unsigned long size,
- unsigned long min,
- int resno)
-{
- unsigned int type_mask;
- int i;
-
- type_mask = IORESOURCE_IO | IORESOURCE_MEM;
- for (i = 0 ; i < 4; i++) {
- struct resource *r = bus->resource[i];
- if (!r)
- continue;
-
- /* type_mask must match */
- if ((res->flags ^ r->flags) & type_mask)
- continue;
-
- /* Ok, try it out.. */
- if (allocate_resource(r, res, size, min, -1, size, NULL, NULL) < 0)
- continue;
-
- /* PCI config space updated by caller. */
- return 0;
- }
- return -EBUSY;
-}
-
-int pci_assign_resource(struct pci_dev *pdev, int resource)
-{
- struct pcidev_cookie *pcp = pdev->sysdata;
- struct pci_pbm_info *pbm = pcp->pbm;
- struct resource *res = &pdev->resource[resource];
- unsigned long min, size;
- int err;
-
- if (res->flags & IORESOURCE_IO)
- min = pbm->io_space.start + 0x400UL;
- else
- min = pbm->mem_space.start;
-
- size = res->end - res->start + 1;
-
- err = pci_assign_bus_resource(pdev->bus, pdev, res, size, min, resource);
-
- if (err < 0) {
- printk("PCI: Failed to allocate resource %d for %s\n",
- resource, pci_name(pdev));
- } else {
- /* Update PCI config space. */
- pbm->parent->base_address_update(pdev, resource);
- }
-
- return err;
-}
-
-/* Sort resources by alignment */
-void pdev_sort_resources(struct pci_dev *dev, struct resource_list *head)
-{
- int i;
-
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- struct resource *r;
- struct resource_list *list, *tmp;
- unsigned long r_align;
-
- r = &dev->resource[i];
- r_align = r->end - r->start;
-
- if (!(r->flags) || r->parent)
- continue;
- if (!r_align) {
- printk(KERN_WARNING "PCI: Ignore bogus resource %d "
- "[%lx:%lx] of %s\n",
- i, r->start, r->end, pci_name(dev));
- continue;
- }
- r_align = (i < PCI_BRIDGE_RESOURCES) ? r_align + 1 : r->start;
- for (list = head; ; list = list->next) {
- unsigned long align = 0;
- struct resource_list *ln = list->next;
- int idx;
-
- if (ln) {
- idx = ln->res - &ln->dev->resource[0];
- align = (idx < PCI_BRIDGE_RESOURCES) ?
- ln->res->end - ln->res->start + 1 :
- ln->res->start;
- }
- if (r_align > align) {
- tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
- if (!tmp)
- panic("pdev_sort_resources(): "
- "kmalloc() failed!\n");
- tmp->next = ln;
- tmp->res = r;
- tmp->dev = dev;
- list->next = tmp;
- break;
- }
- }
- }
+ return root;
}
void pcibios_update_irq(struct pci_dev *pdev, int irq)
}
void pcibios_align_resource(void *data, struct resource *res,
- unsigned long size, unsigned long align)
+ resource_size_t size, resource_size_t align)
{
}
region->start = res->start - zero_res.start;
region->end = res->end - zero_res.start;
}
+EXPORT_SYMBOL(pcibios_resource_to_bus);
void pcibios_bus_to_resource(struct pci_dev *pdev, struct resource *res,
struct pci_bus_region *region)
pbm->parent->resource_adjust(pdev, res, root);
}
+EXPORT_SYMBOL(pcibios_bus_to_resource);
char * __init pcibios_setup(char *str)
{
- if (!strcmp(str, "onboardfirst")) {
- pci_device_reorder = 1;
- return NULL;
- }
- if (!strcmp(str, "noreorder")) {
- pci_device_reorder = 0;
- return NULL;
- }
return str;
}
static void __pci_mmap_set_flags(struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state)
{
- vma->vm_flags |= (VM_SHM | VM_LOCKED);
+ vma->vm_flags |= (VM_IO | VM_RESERVED);
}
/* Set vm_page_prot of VMA, as appropriate for this architecture, for a pci
static void __pci_mmap_set_pgprot(struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state)
{
- /* Our io_remap_page_range takes care of this, do nothing. */
+ /* Our io_remap_pfn_range takes care of this, do nothing. */
}
-extern int io_remap_page_range(struct vm_area_struct *vma, unsigned long from, unsigned long offset,
- unsigned long size, pgprot_t prot, int space);
-
/* Perform the actual remap of the pages for a PCI device mapping, as appropriate
* for this architecture. The region in the process to map is described by vm_start
* and vm_end members of VMA, the base physical address is found in vm_pgoff.
__pci_mmap_set_flags(dev, vma, mmap_state);
__pci_mmap_set_pgprot(dev, vma, mmap_state);
- ret = io_remap_page_range(vma, vma->vm_start,
- (vma->vm_pgoff << PAGE_SHIFT |
- (write_combine ? 0x1UL : 0x0UL)),
- vma->vm_end - vma->vm_start, vma->vm_page_prot, 0);
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+ ret = io_remap_pfn_range(vma, vma->vm_start,
+ vma->vm_pgoff,
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot);
if (ret)
return ret;
- vma->vm_flags |= VM_IO;
return 0;
}
return ret;
}
-
-int pci_name_bus(char *name, struct pci_bus *bus)
-{
- sprintf(name, "%04x:%02x", pci_domain_nr(bus), bus->number);
- return 0;
-}
-
-int pcibios_prep_mwi(struct pci_dev *dev)
-{
- /* We set correct PCI_CACHE_LINE_SIZE register values for every
- * device probed on this platform. So there is nothing to check
- * and this always succeeds.
- */
- return 0;
-}
+EXPORT_SYMBOL(pci_domain_nr);
#endif /* !(CONFIG_PCI) */
git://git.onelab.eu / linux-2.6.git / blobdiff