powerpc/powernv: Needn't IO segment map for PHB3
PHB3 doesn't support IO ports and we needn't IO segment map for that. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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@ -1187,22 +1187,23 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
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phb->ioda.io_segsize = phb->ioda.io_size / phb->ioda.total_pe;
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phb->ioda.io_pci_base = 0; /* XXX calculate this ? */
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/* Allocate aux data & arrays
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*
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* XXX TODO: Don't allocate io segmap on PHB3
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*/
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/* Allocate aux data & arrays. We don't have IO ports on PHB3 */
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size = _ALIGN_UP(phb->ioda.total_pe / 8, sizeof(unsigned long));
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m32map_off = size;
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size += phb->ioda.total_pe * sizeof(phb->ioda.m32_segmap[0]);
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iomap_off = size;
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size += phb->ioda.total_pe * sizeof(phb->ioda.io_segmap[0]);
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if (phb->type == PNV_PHB_IODA1) {
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iomap_off = size;
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size += phb->ioda.total_pe * sizeof(phb->ioda.io_segmap[0]);
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}
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pemap_off = size;
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size += phb->ioda.total_pe * sizeof(struct pnv_ioda_pe);
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aux = alloc_bootmem(size);
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memset(aux, 0, size);
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phb->ioda.pe_alloc = aux;
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phb->ioda.m32_segmap = aux + m32map_off;
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phb->ioda.io_segmap = aux + iomap_off;
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if (phb->type == PNV_PHB_IODA1)
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phb->ioda.io_segmap = aux + iomap_off;
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phb->ioda.pe_array = aux + pemap_off;
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set_bit(0, phb->ioda.pe_alloc);
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