[tip:x86/uv] x86: UV, SGI RTC: loop through installed UV blades

[Dimitri Sivanich <sivanich@sgi.com>]

Commit-ID:  8661984f628c6f7d9cbaac6697f26d6b0be3ad3b
Gitweb:     http://git.kernel.org/tip/8661984f628c6f7d9cbaac6697f26d6b0be3ad3b
Author:     "Dimitri Sivanich" <sivanich@sgi.com>
AuthorDate: Wed, 4 Mar 2009 12:57:19 -0600
Commit:     Ingo Molnar <mingo@elte.hu>
CommitDate: Wed, 4 Mar 2009 20:25:37 +0100

x86: UV, SGI RTC: loop through installed UV blades

Add macro to loop through each possible blade.

Signed-off-by: Dimitri Sivanich <sivanich@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: john stultz <johnstul@us.ibm.com>
LKML-Reference: <20090304185719.GB24419@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>


---
 arch/x86/include/asm/uv/uv_hub.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/arch/x86/include/asm/uv/uv_hub.h b/arch/x86/include/asm/uv/uv_hub.h
index 777327e..9f4dfba 100644
--- a/arch/x86/include/asm/uv/uv_hub.h
+++ b/arch/x86/include/asm/uv/uv_hub.h
@@ -199,6 +199,10 @@ DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
 #define SCIR_CPU_ACTIVITY	0x02	/* not idle */
 #define SCIR_CPU_HB_INTERVAL	(HZ)	/* once per second */
 
+/* Loop through all installed blades */
+#define for_each_possible_blade(bid)		\
+	for ((bid) = 0; (bid) < uv_num_possible_blades(); (bid)++)
+
 /*
  * Macros for converting between kernel virtual addresses, socket local physical
  * addresses, and UV global physical addresses.