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[PATCH 08/36] For Cavium OCTEON handle hazards as per the R10000 handlin

To: linux-mips@linux-mips.org
Subject: [PATCH 08/36] For Cavium OCTEON handle hazards as per the R10000 handling.
From: David Daney <ddaney@caviumnetworks.com>
Date: Mon, 27 Oct 2008 17:02:40 -0700
Cc: David Daney <ddaney@caviumnetworks.com>, Tomaso Paoletti <tpaoletti@caviumnetworks.com>, Paul Gortmaker <Paul.Gortmaker@windriver.com>
In-reply-to: <1225152181-3221-7-git-send-email-ddaney@caviumnetworks.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <490655B6.4030406@caviumnetworks.com> <1225152181-3221-1-git-send-email-ddaney@caviumnetworks.com> <1225152181-3221-2-git-send-email-ddaney@caviumnetworks.com> <1225152181-3221-3-git-send-email-ddaney@caviumnetworks.com> <1225152181-3221-4-git-send-email-ddaney@caviumnetworks.com> <1225152181-3221-5-git-send-email-ddaney@caviumnetworks.com> <1225152181-3221-6-git-send-email-ddaney@caviumnetworks.com> <1225152181-3221-7-git-send-email-ddaney@caviumnetworks.com>
Sender: linux-mips-bounce@linux-mips.org
For Cavium CPU, we treat the same as R10000, in that all hazards
are dealt with in hardware.

Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com>
Signed-off-by: Paul Gortmaker <Paul.Gortmaker@windriver.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
---
 arch/mips/include/asm/hazards.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/include/asm/hazards.h b/arch/mips/include/asm/hazards.h
index 2de638f..43baed1 100644
--- a/arch/mips/include/asm/hazards.h
+++ b/arch/mips/include/asm/hazards.h
@@ -42,7 +42,7 @@ ASMMACRO(_ehb,
 /*
  * TLB hazards
  */
-#if defined(CONFIG_CPU_MIPSR2)
+#if defined(CONFIG_CPU_MIPSR2) && !defined(CONFIG_CPU_CAVIUM_OCTEON)
 
 /*
  * MIPSR2 defines ehb for hazard avoidance
@@ -138,7 +138,7 @@ do {                                                        
                \
                __instruction_hazard();                                 \
 } while (0)
 
-#elif defined(CONFIG_CPU_R10000)
+#elif defined(CONFIG_CPU_R10000) || defined(CONFIG_CPU_CAVIUM_OCTEON)
 
 /*
  * R10000 rocks - all hazards handled in hardware, so this becomes a nobrainer.
-- 
1.5.6.5


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