Commit 3c13be01 authored by Bjorn Helgaas's avatar Bjorn Helgaas
Browse files

powerpc/PCI: make pci_probe_only default to 0



pci_probe_only is set on ppc64 to prevent resource re-allocation
by the core. It's meant to be used in very specific circumstances
such as when operating under a hypervisor that may prevent such
re-allocation.

Instead of default to 1, we make it default to 0 and explicitly
set it in the few cases where we need it.

This fixes FSL PCI which wants it clear among others.
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 14be538c
......@@ -33,7 +33,7 @@
#include <asm/machdep.h>
#include <asm/ppc-pci.h>
unsigned long pci_probe_only = 1;
unsigned long pci_probe_only = 0;
/* pci_io_base -- the base address from which io bars are offsets.
* This is the lowest I/O base address (so bar values are always positive),
......
......@@ -1059,9 +1059,6 @@ void __init pmac_pci_init(void)
}
/* pmac_check_ht_link(); */
/* We can allocate missing resources if any */
pci_probe_only = 0;
#else /* CONFIG_PPC64 */
init_p2pbridge();
init_second_ohare();
......
......@@ -557,9 +557,6 @@ void __init pnv_pci_init(void)
pci_set_flags(PCI_CAN_SKIP_ISA_ALIGN);
/* We do not want to just probe */
pci_probe_only = 0;
/* OPAL absent, try POPAL first then RTAS detection of PHBs */
if (!firmware_has_feature(FW_FEATURE_OPAL)) {
#ifdef CONFIG_PPC_POWERNV_RTAS
......
......@@ -380,6 +380,9 @@ static void __init pSeries_setup_arch(void)
fwnmi_init();
/* By default, only probe PCI (can be overriden by rtas_pci */
pci_probe_only = 1;
/* Find and initialize PCI host bridges */
init_pci_config_tokens();
find_and_init_phbs();
......
......@@ -682,7 +682,6 @@ static int __init wsp_setup_one_phb(struct device_node *np)
/* XXX Force re-assigning of everything for now */
pci_add_flags(PCI_REASSIGN_ALL_BUS | PCI_REASSIGN_ALL_RSRC |
PCI_ENABLE_PROC_DOMAINS);
pci_probe_only = 0;
/* Calculate how the TCE space is divided */
phb->dma32_base = 0;
......
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