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| author | Bjorn Helgaas <bhelgaas@google.com> | 2012-02-23 20:18:58 -0700 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-02-23 20:18:58 -0700 |
| commit | 3c13be017abe041e495862d50dbd83093e09cd6a (patch) | |
| tree | 54f430a5df0d835950430b7199633cc578041c32 | |
| parent | 14be538c566f6fd6f8c8abd1687aa5d36a600703 (diff) | |
| download | op-kernel-dev-3c13be017abe041e495862d50dbd83093e09cd6a.zip op-kernel-dev-3c13be017abe041e495862d50dbd83093e09cd6a.tar.gz | |
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: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| -rw-r--r-- | arch/powerpc/kernel/pci_64.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powermac/pci.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/setup.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/platforms/wsp/wsp_pci.c | 1 |
5 files changed, 4 insertions, 8 deletions
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 3318d39..f627eb7 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -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), diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c index 31a7d3a..43bbe1b 100644 --- a/arch/powerpc/platforms/powermac/pci.c +++ b/arch/powerpc/platforms/powermac/pci.c @@ -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(); diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c index a70bc1e..a053f4f 100644 --- a/arch/powerpc/platforms/powernv/pci.c +++ b/arch/powerpc/platforms/powernv/pci.c @@ -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 diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index f79f127..386e265 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -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(); diff --git a/arch/powerpc/platforms/wsp/wsp_pci.c b/arch/powerpc/platforms/wsp/wsp_pci.c index e0262cd..299157a 100644 --- a/arch/powerpc/platforms/wsp/wsp_pci.c +++ b/arch/powerpc/platforms/wsp/wsp_pci.c @@ -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; |
