From e9dc4d7f72a375020ecbc9ca35b098fd9018910b Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Fri, 19 Jun 2015 12:26:16 +1000 Subject: [PATCH] powerpc/powernv: Allow to reserve one PE for multiple times The PE numbers are reserved according to root port's M64 window, which is aligned to M64 segment finely. So one PE shouldn't be reserved for multiple times. We will reserve PE numbers according to the M64 BARs of PCI device in subsequent patches, which aren't aligned to M64 segment size finely. It means one particular PE could be reserved for multiple times. The patch allows one PE to be reserved for multiple times and we print the warning message at debugging level. Signed-off-by: Gavin Shan Signed-off-by: Michael Ellerman --- arch/powerpc/platforms/powernv/pci-ioda.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 2c286b57e520..4775f9544f5c 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -140,11 +140,9 @@ static void pnv_ioda_reserve_pe(struct pnv_phb *phb, int pe_no) return; } - if (test_and_set_bit(pe_no, phb->ioda.pe_alloc)) { - pr_warn("%s: PE %d was assigned on PHB#%x\n", - __func__, pe_no, phb->hose->global_number); - return; - } + if (test_and_set_bit(pe_no, phb->ioda.pe_alloc)) + pr_debug("%s: PE %d was reserved on PHB#%x\n", + __func__, pe_no, phb->hose->global_number); phb->ioda.pe_array[pe_no].phb = phb; phb->ioda.pe_array[pe_no].pe_number = pe_no; -- 2.20.1