Provide a mechanism for determining if a global physical address is pointing to a UV hub MMR. To: Ingo Molnar To: tglx@linutronix.de Signed-off-by: Robin Holt Cc: Jack Steiner Cc: lkml --- arch/x86/include/asm/uv/uv_hub.h | 7 +++++++ 1 file changed, 7 insertions(+) Index: linux-x86/arch/x86/include/asm/uv/uv_hub.h =================================================================== --- linux-x86.orig/arch/x86/include/asm/uv/uv_hub.h 2009-11-09 08:50:25.000000000 -0600 +++ linux-x86/arch/x86/include/asm/uv/uv_hub.h 2009-11-09 08:52:14.000000000 -0600 @@ -232,6 +232,13 @@ static inline unsigned long uv_gpa(void 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) { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/