1 files changed, 10 insertions, 0 deletions

diff --git a/include/asm-x86/mach-generic/mach_mpspec.h b/include/asm-x86/mach-generic/mach_mpspec.h
new file mode 100644
index 000000000000..9ef0b941bb22
--- /dev/null
+++ b/include/asm-x86/mach-generic/mach_mpspec.h
@@ -0,0 +1,10 @@
+#ifndef __ASM_MACH_MPSPEC_H
+#define __ASM_MACH_MPSPEC_H
+
+#define MAX_IRQ_SOURCES 256
+
+/* Summit or generic (i.e. installer) kernels need lots of bus entries. */
+/* Maximum 256 PCI busses, plus 1 ISA bus in each of 4 cabinets. */
+#define MAX_MP_BUSSES 260
+
+#endif /* __ASM_MACH_MPSPEC_H */