Commit c35d2a8c authored by Gavin Shan's avatar Gavin Shan Committed by Benjamin Herrenschmidt

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: default avatarGavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 2f1ec02e
...@@ -1187,22 +1187,23 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np, ...@@ -1187,22 +1187,23 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
phb->ioda.io_segsize = phb->ioda.io_size / phb->ioda.total_pe; phb->ioda.io_segsize = phb->ioda.io_size / phb->ioda.total_pe;
phb->ioda.io_pci_base = 0; /* XXX calculate this ? */ phb->ioda.io_pci_base = 0; /* XXX calculate this ? */
/* Allocate aux data & arrays /* Allocate aux data & arrays. We don't have IO ports on PHB3 */
*
* XXX TODO: Don't allocate io segmap on PHB3
*/
size = _ALIGN_UP(phb->ioda.total_pe / 8, sizeof(unsigned long)); size = _ALIGN_UP(phb->ioda.total_pe / 8, sizeof(unsigned long));
m32map_off = size; m32map_off = size;
size += phb->ioda.total_pe * sizeof(phb->ioda.m32_segmap[0]); size += phb->ioda.total_pe * sizeof(phb->ioda.m32_segmap[0]);
iomap_off = size; iomap_off = size;
size += phb->ioda.total_pe * sizeof(phb->ioda.io_segmap[0]); if (phb->type == PNV_PHB_IODA1) {
iomap_off = size;
size += phb->ioda.total_pe * sizeof(phb->ioda.io_segmap[0]);
}
pemap_off = size; pemap_off = size;
size += phb->ioda.total_pe * sizeof(struct pnv_ioda_pe); size += phb->ioda.total_pe * sizeof(struct pnv_ioda_pe);
aux = alloc_bootmem(size); aux = alloc_bootmem(size);
memset(aux, 0, size); memset(aux, 0, size);
phb->ioda.pe_alloc = aux; phb->ioda.pe_alloc = aux;
phb->ioda.m32_segmap = aux + m32map_off; phb->ioda.m32_segmap = aux + m32map_off;
phb->ioda.io_segmap = aux + iomap_off; if (phb->type == PNV_PHB_IODA1)
phb->ioda.io_segmap = aux + iomap_off;
phb->ioda.pe_array = aux + pemap_off; phb->ioda.pe_array = aux + pemap_off;
set_bit(0, phb->ioda.pe_alloc); set_bit(0, phb->ioda.pe_alloc);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment