x86/PCI: Clean up pci_cache_line_size
Separate out x86 cache_line_size initialisation code into its own
function (so it can be shared by Xen later in this patch series)
[ Impact: cleanup ]
Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: "H. Peter Anvin" <hpa@zytor.com>
Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: x86@kernel.org
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index a0772af..f7c8a39 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -421,16 +421,10 @@
return bus;
}
-
-int __init pcibios_init(void)
+void __init pcibios_set_cache_line_size(void)
{
struct cpuinfo_x86 *c = &boot_cpu_data;
- if (!raw_pci_ops) {
- printk(KERN_WARNING "PCI: System does not support PCI\n");
- return 0;
- }
-
/*
* Set PCI cacheline size to that of the CPU if the CPU has reported it.
* (For older CPUs that don't support cpuid, we se it to 32 bytes
@@ -445,7 +439,16 @@
pci_dfl_cache_line_size = 32 >> 2;
printk(KERN_DEBUG "PCI: Unknown cacheline size. Setting to 32 bytes\n");
}
+}
+int __init pcibios_init(void)
+{
+ if (!raw_pci_ops) {
+ printk(KERN_WARNING "PCI: System does not support PCI\n");
+ return 0;
+ }
+
+ pcibios_set_cache_line_size();
pcibios_resource_survey();
if (pci_bf_sort >= pci_force_bf)
