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authorPaul Mundt <lethal@linux-sh.org>2007-03-12 03:15:22 -0400
committerPaul Mundt <lethal@linux-sh.org>2007-03-12 03:15:22 -0400
commitffe1b4e9f436fd7bb784f3bf7ee963c149fbca5f (patch)
tree53e5404fda007af8efbb985a4910cbaa39a6b747 /arch
parentfbd168461e65e73016c34b2eacd76d87218c8a9f (diff)
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')
-rw-r--r--arch/sh/kernel/cpu/init.c20
-rw-r--r--arch/sh/kernel/cpu/sh4/probe.c13
2 files changed, 17 insertions, 16 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 @@
3 * 3 *
4 * CPU init code 4 * CPU init code
5 * 5 *
6 * Copyright (C) 2002 - 2006 Paul Mundt 6 * Copyright (C) 2002 - 2007 Paul Mundt
7 * Copyright (C) 2003 Richard Curnow 7 * Copyright (C) 2003 Richard Curnow
8 * 8 *
9 * This file is subject to the terms and conditions of the GNU General Public 9 * This file is subject to the terms and conditions of the GNU General Public
@@ -48,8 +48,19 @@ static void __init cache_init(void)
48{ 48{
49 unsigned long ccr, flags; 49 unsigned long ccr, flags;
50 50
51 if (current_cpu_data.type == CPU_SH_NONE) 51 /* First setup the rest of the I-cache info */
52 panic("Unknown CPU"); 52 current_cpu_data.icache.entry_mask = current_cpu_data.icache.way_incr -
53 current_cpu_data.icache.linesz;
54
55 current_cpu_data.icache.way_size = current_cpu_data.icache.sets *
56 current_cpu_data.icache.linesz;
57
58 /* And the D-cache too */
59 current_cpu_data.dcache.entry_mask = current_cpu_data.dcache.way_incr -
60 current_cpu_data.dcache.linesz;
61
62 current_cpu_data.dcache.way_size = current_cpu_data.dcache.sets *
63 current_cpu_data.dcache.linesz;
53 64
54 jump_to_P2(); 65 jump_to_P2();
55 ccr = ctrl_inl(CCR); 66 ccr = ctrl_inl(CCR);
@@ -200,6 +211,9 @@ asmlinkage void __init sh_cpu_init(void)
200 /* First, probe the CPU */ 211 /* First, probe the CPU */
201 detect_cpu_and_cache_system(); 212 detect_cpu_and_cache_system();
202 213
214 if (current_cpu_data.type == CPU_SH_NONE)
215 panic("Unknown CPU");
216
203 /* Init the cache */ 217 /* Init the cache */
204 cache_init(); 218 cache_init();
205 219
diff --git a/arch/sh/kernel/cpu/sh4/probe.c b/arch/sh/kernel/cpu/sh4/probe.c
index 9d28c88d2f9d..58950de2696d 100644
--- a/arch/sh/kernel/cpu/sh4/probe.c
+++ b/arch/sh/kernel/cpu/sh4/probe.c
@@ -195,13 +195,6 @@ int __init detect_cpu_and_cache_system(void)
195 195
196 } 196 }
197 197
198 /* Setup the rest of the I-cache info */
199 current_cpu_data.icache.entry_mask = current_cpu_data.icache.way_incr -
200 current_cpu_data.icache.linesz;
201
202 current_cpu_data.icache.way_size = current_cpu_data.icache.sets *
203 current_cpu_data.icache.linesz;
204
205 /* And the rest of the D-cache */ 198 /* And the rest of the D-cache */
206 if (current_cpu_data.dcache.ways > 1) { 199 if (current_cpu_data.dcache.ways > 1) {
207 size = sizes[(cvr >> 16) & 0xf]; 200 size = sizes[(cvr >> 16) & 0xf];
@@ -209,12 +202,6 @@ int __init detect_cpu_and_cache_system(void)
209 current_cpu_data.dcache.sets = (size >> 6); 202 current_cpu_data.dcache.sets = (size >> 6);
210 } 203 }
211 204
212 current_cpu_data.dcache.entry_mask = current_cpu_data.dcache.way_incr -
213 current_cpu_data.dcache.linesz;
214
215 current_cpu_data.dcache.way_size = current_cpu_data.dcache.sets *
216 current_cpu_data.dcache.linesz;
217
218 /* 205 /*
219 * Setup the L2 cache desc 206 * Setup the L2 cache desc
220 * 207 *