From: franck.jullien@gmail.com
To: barebox@lists.infradead.org
Subject: [PATCH 11/54] Add arch/nios2/lib/cache.S
Date: Thu, 3 Mar 2011 23:58:25 +0100 [thread overview]
Message-ID: <4d701d37.9009d80a.2cd3.5e7b@mx.google.com> (raw)
In-Reply-To: <n>
From: Franck JULLIEN <franck.jullien@gmail.com>
Add arch/nios2/lib/cache.S
---
arch/nios2/lib/cache.S | 74 ++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 74 insertions(+), 0 deletions(-)
create mode 100644 arch/nios2/lib/cache.S
diff --git a/arch/nios2/lib/cache.S b/arch/nios2/lib/cache.S
new file mode 100644
index 0000000..e3014d0
--- /dev/null
+++ b/arch/nios2/lib/cache.S
@@ -0,0 +1,74 @@
+/*
+ * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+
+ .text
+
+ .global flush_dcache
+
+flush_dcache:
+ add r5, r5, r4
+ movhi r8, %hi(DCACHE_LINE_SIZE)
+ ori r8, r8, %lo(DCACHE_LINE_SIZE)
+0: flushd 0(r4)
+ add r4, r4, r8
+ bltu r4, r5, 0b
+ ret
+
+
+ .global flush_icache
+
+flush_icache:
+ add r5, r5, r4
+ movhi r8, %hi(ICACHE_LINE_SIZE)
+ ori r8, r8, %lo(ICACHE_LINE_SIZE)
+1: flushi r4
+ add r4, r4, r8
+ bltu r4, r5, 1b
+ ret
+
+ .global flush_cache
+
+flush_cache:
+ add r5, r5, r4
+ mov r9, r4
+ mov r10, r5
+
+ movhi r8, %hi(DCACHE_LINE_SIZE)
+ ori r8, r8, %lo(DCACHE_LINE_SIZE)
+0: flushd 0(r4)
+ add r4, r4, r8
+ bltu r4, r5, 0b
+
+ mov r4, r9
+ mov r5, r10
+ movhi r8, %hi(ICACHE_LINE_SIZE)
+ ori r8, r8, %lo(ICACHE_LINE_SIZE)
+1: flushi r4
+ add r4, r4, r8
+ bltu r4, r5, 1b
+
+ sync
+ flushp
+ ret
--
1.7.3.4
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