From: Santosh Shilimkar <santosh.shilimkar@ti.com>
To: linux-omap@vger.kernel.org
Cc: khilman@deeprootsystems.com, tony@atomide.com,
linux-arm-kernel@lists.infradead.org,
Santosh Shilimkar <santosh.shilimkar@ti.com>
Subject: [PATCH 5/9] ARM: OMAP4+: Remove un-necessary cacheflush in secondary CPU boot path
Date: Wed, 20 Feb 2013 20:48:43 +0530 [thread overview]
Message-ID: <1361373527-21695-6-git-send-email-santosh.shilimkar@ti.com> (raw)
In-Reply-To: <1361373527-21695-1-git-send-email-santosh.shilimkar@ti.com>
This was borrowed from ARM versatile code with pen_release mechanism but since
OMAP uses hardware register based synchronisation, pen_release stuff was
dropped. Unfortunately the cacheflush wasn't dropped along with it.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
arch/arm/mach-omap2/omap-smp.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index cd42d92..81fd489 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -20,7 +20,6 @@
#include <linux/smp.h>
#include <linux/io.h>
-#include <asm/cacheflush.h>
#include <asm/hardware/gic.h>
#include <asm/smp_scu.h>
@@ -103,9 +102,6 @@ static int __cpuinit omap4_boot_secondary(unsigned int cpu, struct task_struct *
else
__raw_writel(0x20, base + OMAP_AUX_CORE_BOOT_0);
- flush_cache_all();
- smp_wmb();
-
if (!cpu1_clkdm)
cpu1_clkdm = clkdm_lookup("mpu1_clkdm");
--
1.7.9.5
WARNING: multiple messages have this Message-ID (diff)
From: santosh.shilimkar@ti.com (Santosh Shilimkar)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/9] ARM: OMAP4+: Remove un-necessary cacheflush in secondary CPU boot path
Date: Wed, 20 Feb 2013 20:48:43 +0530 [thread overview]
Message-ID: <1361373527-21695-6-git-send-email-santosh.shilimkar@ti.com> (raw)
In-Reply-To: <1361373527-21695-1-git-send-email-santosh.shilimkar@ti.com>
This was borrowed from ARM versatile code with pen_release mechanism but since
OMAP uses hardware register based synchronisation, pen_release stuff was
dropped. Unfortunately the cacheflush wasn't dropped along with it.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
arch/arm/mach-omap2/omap-smp.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index cd42d92..81fd489 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -20,7 +20,6 @@
#include <linux/smp.h>
#include <linux/io.h>
-#include <asm/cacheflush.h>
#include <asm/hardware/gic.h>
#include <asm/smp_scu.h>
@@ -103,9 +102,6 @@ static int __cpuinit omap4_boot_secondary(unsigned int cpu, struct task_struct *
else
__raw_writel(0x20, base + OMAP_AUX_CORE_BOOT_0);
- flush_cache_all();
- smp_wmb();
-
if (!cpu1_clkdm)
cpu1_clkdm = clkdm_lookup("mpu1_clkdm");
--
1.7.9.5
next prev parent reply other threads:[~2013-02-20 15:18 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-20 15:18 [PATCH 0/9] ARM: OMAP: Static deps, fiq, omap-smp cleanup Santosh Shilimkar
2013-02-20 15:18 ` Santosh Shilimkar
2013-02-20 15:18 ` [PATCH 1/9] ARM: OMAP4+: Use common scratchpad SAR RAM offsets for all architectures Santosh Shilimkar
2013-02-20 15:18 ` Santosh Shilimkar
2013-03-27 18:41 ` Kevin Hilman
2013-03-27 18:41 ` Kevin Hilman
2013-03-27 20:49 ` Santosh Shilimkar
2013-03-27 20:49 ` Santosh Shilimkar
2013-03-27 20:49 ` Tony Lindgren
2013-03-27 20:49 ` Tony Lindgren
2013-03-27 20:52 ` Santosh Shilimkar
2013-03-27 20:52 ` Santosh Shilimkar
2013-03-28 7:32 ` Santosh Shilimkar
2013-03-28 7:32 ` Santosh Shilimkar
2013-02-20 15:18 ` [PATCH 2/9] ARM: OMAP1: PM: Remove bogus fiq_[enable/disable] tuple Santosh Shilimkar
2013-02-20 15:18 ` Santosh Shilimkar
2013-02-20 16:09 ` Tony Lindgren
2013-02-20 16:09 ` Tony Lindgren
2013-02-20 16:14 ` Santosh Shilimkar
2013-02-20 16:14 ` Santosh Shilimkar
2013-02-20 15:18 ` [PATCH 3/9] ARM: OMAP2+: " Santosh Shilimkar
2013-02-20 15:18 ` Santosh Shilimkar
2013-03-27 18:36 ` Kevin Hilman
2013-03-27 18:36 ` Kevin Hilman
2013-03-27 19:02 ` Santosh Shilimkar
2013-03-27 19:02 ` Santosh Shilimkar
2013-03-28 7:37 ` Santosh Shilimkar
2013-03-28 7:37 ` Santosh Shilimkar
2013-02-20 15:18 ` [PATCH 4/9] ARM: OMAP4+: Remove the un-necessary cache flush from hotplug code Santosh Shilimkar
2013-02-20 15:18 ` Santosh Shilimkar
2013-03-27 18:43 ` Kevin Hilman
2013-03-27 18:43 ` Kevin Hilman
2013-03-27 20:47 ` Santosh Shilimkar
2013-03-27 20:47 ` Santosh Shilimkar
2013-03-28 7:29 ` Santosh Shilimkar
2013-03-28 7:29 ` Santosh Shilimkar
2013-02-20 15:18 ` Santosh Shilimkar [this message]
2013-02-20 15:18 ` [PATCH 5/9] ARM: OMAP4+: Remove un-necessary cacheflush in secondary CPU boot path Santosh Shilimkar
2013-02-20 15:18 ` [PATCH 6/9] ARM: OMAP4+: Remove out of placed smp_wmb() in secondary wakeup code Santosh Shilimkar
2013-02-20 15:18 ` Santosh Shilimkar
2013-02-21 12:55 ` Sergei Shtylyov
2013-02-21 12:55 ` Sergei Shtylyov
2013-02-21 12:59 ` Santosh Shilimkar
2013-02-21 12:59 ` Santosh Shilimkar
2013-02-20 15:18 ` [PATCH 7/9] ARM: OMAP4+: Move the CPU wakeup prepare code under smp_prepare_cpus() Santosh Shilimkar
2013-02-20 15:18 ` Santosh Shilimkar
2013-03-27 18:45 ` Kevin Hilman
2013-03-27 18:45 ` Kevin Hilman
2013-03-27 19:04 ` Santosh Shilimkar
2013-03-27 19:04 ` Santosh Shilimkar
2013-03-27 19:54 ` Kevin Hilman
2013-03-27 19:54 ` Kevin Hilman
2013-03-27 20:50 ` Santosh Shilimkar
2013-03-27 20:50 ` Santosh Shilimkar
2013-03-28 7:35 ` Santosh Shilimkar
2013-03-28 7:35 ` Santosh Shilimkar
2013-03-28 9:46 ` Russell King - ARM Linux
2013-03-28 9:46 ` Russell King - ARM Linux
2013-03-28 9:58 ` Santosh Shilimkar
2013-03-28 9:58 ` Santosh Shilimkar
2013-03-28 12:04 ` Russell King - ARM Linux
2013-03-28 12:04 ` Russell King - ARM Linux
2013-03-28 12:09 ` Santosh Shilimkar
2013-03-28 12:09 ` Santosh Shilimkar
2013-02-20 15:18 ` [PATCH 8/9] ARM: OMAP4: PM: Remove L4 wakeup depedency with MPU since errata fix exist now Santosh Shilimkar
2013-02-20 15:18 ` Santosh Shilimkar
2013-03-27 18:46 ` Kevin Hilman
2013-03-27 18:46 ` Kevin Hilman
2013-03-27 19:01 ` Peter Korsgaard
2013-03-27 19:01 ` Peter Korsgaard
2013-02-20 15:18 ` [PATCH 9/9] ARM: OMAP4: PM: Now remove L4 per clockdomain static depedency with MPU Santosh Shilimkar
2013-02-20 15:18 ` Santosh Shilimkar
2013-03-27 18:46 ` Kevin Hilman
2013-03-27 18:46 ` Kevin Hilman
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