aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/arch/sh/kernel/cpu/init.c
diff options
context:
space:
mode:
authorPaul Mundt <lethal@linux-sh.org>2007-03-12 16:15:22 +0900
committerPaul Mundt <lethal@linux-sh.org>2007-03-12 16:15:22 +0900
commitffe1b4e9f436fd7bb784f3bf7ee963c149fbca5f (patch)
tree53e5404fda007af8efbb985a4910cbaa39a6b747 /arch/sh/kernel/cpu/init.c
parentsh: Convert struct ioctls to static defines. (diff)
downloadwireguard-linux-ffe1b4e9f436fd7bb784f3bf7ee963c149fbca5f.tar.xz
wireguard-linux-ffe1b4e9f436fd7bb784f3bf7ee963c149fbca5f.zip
sh: Fix SH-3 cache entry_mask and way_size calculation.
The code for performing the calculation was only in the SH-4 probe path, move it out to the common path so the other parts get this right too. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/cpu/init.c')
-rw-r--r--arch/sh/kernel/cpu/init.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c
index 4b339a640b13..726acfcb9b77 100644
--- a/arch/sh/kernel/cpu/init.c
+++ b/arch/sh/kernel/cpu/init.c
@@ -3,7 +3,7 @@
*
* CPU init code
*
- * Copyright (C) 2002 - 2006 Paul Mundt
+ * Copyright (C) 2002 - 2007 Paul Mundt
* Copyright (C) 2003 Richard Curnow
*
* This file is subject to the terms and conditions of the GNU General Public
@@ -48,8 +48,19 @@ static void __init cache_init(void)
{
unsigned long ccr, flags;
- if (current_cpu_data.type == CPU_SH_NONE)
- panic("Unknown CPU");
+ /* First setup the rest of the I-cache info */
+ current_cpu_data.icache.entry_mask = current_cpu_data.icache.way_incr -
+ current_cpu_data.icache.linesz;
+
+ current_cpu_data.icache.way_size = current_cpu_data.icache.sets *
+ current_cpu_data.icache.linesz;
+
+ /* And the D-cache too */
+ current_cpu_data.dcache.entry_mask = current_cpu_data.dcache.way_incr -
+ current_cpu_data.dcache.linesz;
+
+ current_cpu_data.dcache.way_size = current_cpu_data.dcache.sets *
+ current_cpu_data.dcache.linesz;
jump_to_P2();
ccr = ctrl_inl(CCR);
@@ -200,6 +211,9 @@ asmlinkage void __init sh_cpu_init(void)
/* First, probe the CPU */
detect_cpu_and_cache_system();
+ if (current_cpu_data.type == CPU_SH_NONE)
+ panic("Unknown CPU");
+
/* Init the cache */
cache_init();