From: dwalker@codeaurora•org (Daniel Walker)
To: linux-arm-kernel@lists•infradead.org
Subject: [RFC 08/18] arm: msm: set L2CR1 to enable prefetch and burst on Scorpion.
Date: Mon, 11 Jan 2010 14:47:27 -0800 [thread overview]
Message-ID: <1263250057-26692-9-git-send-email-dwalker@codeaurora.org> (raw)
In-Reply-To: <1263250057-26692-1-git-send-email-dwalker@codeaurora.org>
From: Larry Bassel <lbassel@quicinc•com>
This change improves the following LMBench benchmarks
by over 15%:
System Call Latency
Signal Handling Latency
Fault Latency
Inter-process Communication Latency
Inter-process Communication Bandwidth
Random Number Generation Latency
Acked-by: Steve Muckle <smuckle@quicinc•com>
Signed-off-by: Larry Bassel <lbassel@quicinc•com>
Signed-off-by: Daniel Walker <dwalker@codeaurora•org>
---
arch/arm/mm/proc-v7.S | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 3a28521..b331f23 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -2,6 +2,7 @@
* linux/arch/arm/mm/proc-v7.S
*
* Copyright (C) 2001 Deep Blue Solutions Ltd.
+ * Copyright (c) 2009, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -237,6 +238,10 @@ __v7_setup:
mcr p15, 0, r4, c2, c0, 1 @ load TTB1
mov r10, #0x1f @ domains 0, 1 = manager
mcr p15, 0, r10, c3, c0, 0 @ load domain access register
+#ifdef CONFIG_ARCH_MSM_SCORPION
+ mov r0, #0x77
+ mcr p15, 3, r0, c15, c0, 3 @ set L2CR1
+#endif
/*
* Memory region attributes with SCTLR.TRE=1
*
--
1.6.3.3
next prev parent reply other threads:[~2010-01-11 22:47 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-11 22:47 [RFC 00/18] generic arm needed for msm Daniel Walker
2010-01-11 22:47 ` [RFC 01/18] arm: msm: allow ARCH_MSM to have v7 cpus Daniel Walker
2010-01-11 22:47 ` [RFC 02/18] arm: msm: add oprofile pmu support Daniel Walker
2010-01-11 22:47 ` [RFC 03/18] arm: boot: remove old ARM ID for QSD Daniel Walker
2010-01-15 21:26 ` Russell King - ARM Linux
2010-01-11 22:47 ` [RFC 04/18] arm: cache-l2x0: add l2x0 suspend and resume functions Daniel Walker
2010-01-11 23:44 ` Russell King - ARM Linux
2010-01-12 0:52 ` Ruan, Willie
2010-01-11 22:47 ` [RFC 05/18] arm: msm: implement ioremap_strongly_ordered Daniel Walker
2010-01-11 23:37 ` Russell King - ARM Linux
2010-01-28 23:04 ` Larry Bassel
2010-02-03 14:59 ` Russell King - ARM Linux
2010-01-11 22:47 ` [RFC 06/18] arm: msm: implement proper dmb() for 7x27 Daniel Walker
2010-01-11 23:39 ` Russell King - ARM Linux
2010-01-11 23:45 ` Daniel Walker
2010-01-12 0:01 ` Russell King - ARM Linux
2010-01-19 17:28 ` Jamie Lokier
2010-01-19 18:04 ` Russell King - ARM Linux
2010-01-19 21:12 ` Jamie Lokier
2010-01-19 23:11 ` Russell King - ARM Linux
2010-01-19 17:16 ` Jamie Lokier
2010-01-11 22:47 ` [RFC 07/18] arm: mm: retry on QSD icache parity errors Daniel Walker
2010-01-18 18:42 ` Ashwin Chaugule
2010-01-19 16:16 ` Ashwin Chaugule
2010-01-11 22:47 ` Daniel Walker [this message]
2010-01-11 23:45 ` [RFC 08/18] arm: msm: set L2CR1 to enable prefetch and burst on Scorpion Russell King - ARM Linux
2010-01-12 10:51 ` [RFC 08/18] arm: msm: set L2CR1 to enable prefetch and burston Scorpion Catalin Marinas
2010-01-12 11:23 ` Shilimkar, Santosh
2010-01-12 11:44 ` Russell King - ARM Linux
2010-01-12 13:32 ` [RFC 08/18] arm: msm: set L2CR1 to enable prefetch and burstonScorpion Catalin Marinas
2010-01-12 13:58 ` Russell King - ARM Linux
2010-01-12 14:41 ` [RFC 08/18] arm: msm: set L2CR1 to enable prefetch andburstonScorpion Catalin Marinas
2010-01-12 18:23 ` Daniel Walker
2010-01-13 10:36 ` Catalin Marinas
2010-01-19 17:38 ` Jamie Lokier
2010-01-13 6:14 ` [RFC 08/18] arm: msm: set L2CR1 to enable prefetch and burstonScorpion Shilimkar, Santosh
2010-01-12 20:21 ` [RFC 08/18] arm: msm: set L2CR1 to enable prefetch and burston Scorpion Nicolas Pitre
2010-01-11 22:47 ` [RFC 09/18] arm: mm: support error reporting in L1/L2 caches on QSD Daniel Walker
2010-01-11 22:47 ` [RFC 10/18] arm: mm: enable L2X0 to use L2 cache on MSM7X27 Daniel Walker
2010-01-11 22:47 ` [RFC 11/18] arm: msm: add ARCH_MSM_SCORPION to CPU_V7 Daniel Walker
2010-01-11 23:13 ` Russell King - ARM Linux
2010-01-11 23:17 ` Daniel Walker
2010-01-11 22:47 ` [RFC 12/18] arm: msm: Enable frequency scaling Daniel Walker
2010-01-11 22:47 ` [RFC 13/18] arm: msm: define HAVE_CLK for ARCH_MSM Daniel Walker
2010-01-11 22:47 ` [RFC 14/18] arm: msm: add v7 support for compiler version-4.1.1 Daniel Walker
2010-01-11 23:07 ` Russell King - ARM Linux
2010-01-11 22:47 ` [RFC 15/18] arm: vfp: Add additional vfp interfaces Daniel Walker
2010-01-11 22:47 ` [RFC 16/18] arm: msm: add arch_has_speculative_dfetch() Daniel Walker
2010-01-11 23:33 ` Russell King - ARM Linux
2010-01-12 0:28 ` Daniel Walker
2010-01-12 8:59 ` Russell King - ARM Linux
2010-01-11 22:47 ` [RFC 17/18] arm: mm: Add SW emulation for ARM domain manager feature Daniel Walker
2010-01-25 16:40 ` Catalin Marinas
2010-01-25 17:04 ` Nicolas Pitre
2010-01-25 18:25 ` Daniel Walker
2010-03-22 18:11 ` Daniel Walker
2010-03-22 18:58 ` Nicolas Pitre
2010-03-22 20:01 ` Daniel Walker
2010-03-22 20:32 ` Nicolas Pitre
2010-03-23 10:04 ` Catalin Marinas
2010-01-11 22:47 ` [RFC 18/18] arm: mm: qsd8x50: Fix incorrect permission faults Daniel Walker
2010-01-11 23:11 ` Russell King - ARM Linux
2010-01-19 17:10 ` Jamie Lokier
2010-01-19 17:33 ` Daniel Walker
2010-01-19 17:43 ` Jamie Lokier
2010-01-19 17:49 ` Daniel Walker
2010-01-19 18:09 ` Russell King - ARM Linux
2010-02-04 0:09 ` David Brown
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