Commit ab9c0bb8 authored Jun 16, 2008 by Jack Steiner Committed by Ingo Molnar Jul 08, 2008

x86: increase MAX_APICS for very large x86-64 configs



Increase the maximum number of apics when running very large
configurations. This patch has no affect on most systems.

The patch has no effect on any 32-bit kernel. It adds ~4k to the size
of 64-bit kernels but only if NR_CPUS > 255.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent b6df1b8b

include/asm-x86/mpspec_def.h

+5 −4

Original line number	Original line	Diff line number	Diff line
	@@ -17,10 +17,11 @@
	# define MAX_MPC_ENTRY 1024		# define MAX_MPC_ENTRY 1024
	# define MAX_APICS 256		# define MAX_APICS 256
	#else		#else
	/*		# if NR_CPUS <= 255
	* A maximum of 255 APICs with the current APIC ID architecture.
	*/
	# define MAX_APICS 255		# define MAX_APICS 255
			# else
			# define MAX_APICS 32768
			# endif
	#endif		#endif

	struct intel_mp_floating {		struct intel_mp_floating {

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