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[SPARC64]: PCI-SUN4V fixes.

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Clear top 8-bits of physical addresses in "ranges" property.
This gives the actual physical address.

Detect PBM-A vs. PBM-B by checking bit 0x40 of the devhandle.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-02-12 22:06:53 -08:00
parent cf627156c4
commit 3833789bb2
1 changed files with 33 additions and 8 deletions
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41
arch/sparc64/kernel/pci_sun4v.c
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@ -776,22 +776,22 @@ static void pci_sun4v_iommu_init(struct pci_pbm_info *pbm)
probe_existing_entries(pbm, iommu);
}
static void pci_sun4v_pbm_init(struct pci_controller_info *p, int prom_node)
static void pci_sun4v_pbm_init(struct pci_controller_info *p, int prom_node, unsigned int devhandle)
{
struct pci_pbm_info *pbm;
struct linux_prom64_registers regs;
unsigned int busrange[2];
int err;
int err, i;
/* XXX */
pbm = &p->pbm_A;
if (devhandle & 0x40)
pbm = &p->pbm_B;
else
pbm = &p->pbm_A;
pbm->parent = p;
pbm->prom_node = prom_node;
pbm->pci_first_slot = 1;
prom_getproperty(prom_node, "reg", (char *)&regs, sizeof(regs));
pbm->devhandle = (regs.phys_addr >> 32UL) & 0x0fffffff;
pbm->devhandle = devhandle;
sprintf(pbm->name, "SUN4V-PCI%d PBM%c",
p->index, (pbm == &p->pbm_A ? 'A' : 'B'));
@ -813,6 +813,12 @@ static void pci_sun4v_pbm_init(struct pci_controller_info *p, int prom_node)
pbm->num_pbm_ranges =
(err / sizeof(struct linux_prom_pci_ranges));
/* Mask out the top 8 bits of the ranges, leaving the real
* physical address.
*/
for (i = 0; i < pbm->num_pbm_ranges; i++)
pbm->pbm_ranges[i].parent_phys_hi &= 0x0fffffff;
pci_sun4v_determine_mem_io_space(pbm);
pbm_register_toplevel_resources(p, pbm);
@ -851,6 +857,25 @@ void sun4v_pci_init(int node, char *model_name)
{
struct pci_controller_info *p;
struct pci_iommu *iommu;
struct linux_prom64_registers regs;
unsigned int devhandle;
prom_getproperty(node, "reg", (char *)&regs, sizeof(regs));
devhandle = (regs.phys_addr >> 32UL) & 0x0fffffff;;
for (p = pci_controller_root; p; p = p->next) {
struct pci_pbm_info *pbm;
if (p->pbm_A.prom_node && p->pbm_B.prom_node)
continue;
pbm = (p->pbm_A.prom_node ?
&p->pbm_A :
&p->pbm_B);
if (pbm->devhandle == (devhandle ^ 0x40))
pci_sun4v_pbm_init(p, node, devhandle);
}
p = kmalloc(sizeof(struct pci_controller_info), GFP_ATOMIC);
if (!p) {
@ -892,7 +917,7 @@ void sun4v_pci_init(int node, char *model_name)
*/
pci_memspace_mask = 0x7fffffffUL;
pci_sun4v_pbm_init(p, node);
pci_sun4v_pbm_init(p, node, devhandle);
prom_printf("sun4v_pci_init: Implement me.\n");
prom_halt();