Commit fae419f2 authored Dec 15, 2009 by Robin Holt Committed by Linus Torvalds Dec 16, 2009

x86: uv: introduce uv_gpa_is_mmr



Provide a mechanism for determining if a global physical address is
pointing to a UV hub MMR.

Signed-off-by: Robin Holt <holt@sgi.com>
Cc: Jack Steiner <steiner@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 68212893

arch/x86/include/asm/uv/uv_hub.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -232,6 +232,13 @@ static inline unsigned long uv_gpa(void *v)
		return uv_soc_phys_ram_to_gpa(__pa(v));
		}

		/* Top two bits indicate the requested address is in MMR space. */
		static inline int
		uv_gpa_in_mmr_space(unsigned long gpa)
		{
		return (gpa >> 62) == 0x3UL;
		}

		/* UV global physical address --> socket phys RAM */
		static inline unsigned long uv_gpa_to_soc_phys_ram(unsigned long gpa)
		{