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[SPARC64]: Beginnings of SUN4V PCI controller support.

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Abstract out IOMMU operations so that we can have a different
set of calls on sun4v, which needs to do things through
hypervisor calls.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-02-09 21:32:07 -08:00
parent 4cce4b7cc5
commit 8f6a93a196
5 changed files with 152 additions and 20 deletions
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13
arch/sparc64/kernel/pci.c
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@ -188,6 +188,7 @@ 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 sun4v_pci_init(int, char *);
static struct {
char *model_name;
@ -204,6 +205,7 @@ static struct {
{ "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]))
@ -283,6 +285,12 @@ int __init pcic_present(void)
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
@ -290,6 +298,11 @@ int __init pcic_present(void)
*/
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);