linux-kernel - [PATCH] powerpc/powernv: Fix IMC_MAX

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Date:   Thu,  9 Nov 2017 17:40:26 +0530
From:   Anju T Sudhakar <anju@...ux.vnet.ibm.com>
To:     mpe@...erman.id.au
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        maddy@...ux.vnet.ibm.com, anju@...ux.vnet.ibm.com
Subject: [PATCH] powerpc/powernv: Fix IMC_MAX_PMU macro

IMC_MAX_PMU is used for static storage (per_nest_pmu_arr) which holds
nest pmu information. Current value for the macro is 32 based on
the initial number of nest pmu units supported by the nest microcode.
Currently 29 nest units are enabled based on the system configuration.
But going forward, microcode could support more nest units (max of 64
nest units). Hence fix the value for the macro.

Fixes:8f95faaac56c1 ('powerpc/powernv: Detect and create IMC device')
Signed-off-by: Anju T Sudhakar <anju@...ux.vnet.ibm.com>
---
 arch/powerpc/include/asm/imc-pmu.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/imc-pmu.h b/arch/powerpc/include/asm/imc-pmu.h
index 7f74c28..f9f0f2e 100644
--- a/arch/powerpc/include/asm/imc-pmu.h
+++ b/arch/powerpc/include/asm/imc-pmu.h
@@ -23,7 +23,7 @@
 /*
  * For static allocation of some of the structures.
  */
-#define IMC_MAX_PMUS			32
+#define IMC_MAX_PMUS			64

 /*
  * Compatibility macros for IMC devices
-- 
2.7.4