linux-kernel - [PATCH 2/3 v7] SGI RTC: loop through installed UV blades

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Message-ID: <20090304185719.GB24419@sgi.com>
Date:	Wed, 4 Mar 2009 12:57:19 -0600
From:	Dimitri Sivanich <sivanich@....com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	john stultz <johnstul@...ibm.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 2/3 v7] SGI RTC: loop through installed UV blades

Add macro to loop through each possible blade.

Signed-off-by: Dimitri Sivanich <sivanich@....com>

---

 arch/x86/include/asm/uv/uv_hub.h |    4 ++++
 1 file changed, 4 insertions(+)

Index: linux/arch/x86/include/asm/uv/uv_hub.h
===================================================================
--- linux.orig/arch/x86/include/asm/uv/uv_hub.h	2009-03-04 09:38:04.000000000 -0600
+++ linux/arch/x86/include/asm/uv/uv_hub.h	2009-03-04 10:51:20.000000000 -0600
@@ -199,6 +199,10 @@ DECLARE_PER_CPU(struct uv_hub_info_s, __
 #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.
--
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