diff options
| author | Gavin Shan <shangw@linux.vnet.ibm.com> | 2013-07-31 16:47:04 +0800 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-08-14 14:57:32 +1000 |
| commit | c35d2a8c5f68e53ccbb4c0f64316a22af1729fca (patch) | |
| tree | c273f431d92fda397a6a3d52e49c4f09f8c9a236 /arch/powerpc/platforms/powernv/pci-ioda.c | |
| parent | 2f1ec02ea162ad18556c35a00c6220fc613f26ce (diff) | |
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>
Diffstat (limited to 'arch/powerpc/platforms/powernv/pci-ioda.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 829047baa4b..74a5a5773b1 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -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_pci_base = 0; /* XXX calculate this ? */ - /* Allocate aux data & arrays - * - * XXX TODO: Don't allocate io segmap on PHB3 - */ + /* Allocate aux data & arrays. We don't have IO ports on PHB3 */ size = _ALIGN_UP(phb->ioda.total_pe / 8, sizeof(unsigned long)); m32map_off = size; size += phb->ioda.total_pe * sizeof(phb->ioda.m32_segmap[0]); 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; size += phb->ioda.total_pe * sizeof(struct pnv_ioda_pe); aux = alloc_bootmem(size); memset(aux, 0, size); phb->ioda.pe_alloc = aux; 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; set_bit(0, phb->ioda.pe_alloc); |