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authorRalf Baechle <ralf@linux-mips.org>2007-07-05 03:14:21 -0400
committerRalf Baechle <ralf@linux-mips.org>2007-07-06 11:17:11 -0400
commit075c733e19ce7530b53b78151cc4d303c8f64548 (patch)
treec4f3e9a373b924794c97f5964cd55b121918ab41
parent9349075a15a876f8e82f433ec84f99d19d3e77f9 (diff)
[MIPS] RM7000: Enable ICACHE_REFILLS_WORKAROUND_WAR.
The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra opposes it being called that) where invalid instructions in the same I-cache line worth of instructions being fetched may case spurious exceptions. The workaround for this was only enabled for E9000 cores; enable it also for all RM7000-based platforms. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
-rw-r--r--include/asm-mips/war.h18
1 files changed, 11 insertions, 7 deletions
diff --git a/include/asm-mips/war.h b/include/asm-mips/war.h
index 13a3502eef44..ec0eeebd8802 100644
--- a/include/asm-mips/war.h
+++ b/include/asm-mips/war.h
@@ -177,18 +177,22 @@
177#endif 177#endif
178 178
179/* 179/*
180 * The RM9000 has a bug (though PMC-Sierra opposes it being called that) 180 * The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
181 * where invalid instructions in the same I-cache line worth of instructions 181 * opposes it being called that) where invalid instructions in the same
182 * being fetched may case spurious exceptions. 182 * I-cache line worth of instructions being fetched may case spurious
183 */ 183 * exceptions.
184#if defined(CONFIG_MOMENCO_JAGUAR_ATX) || defined(CONFIG_MOMENCO_OCELOT_3) || \ 184 */
185 defined(CONFIG_PMC_YOSEMITE) || defined(CONFIG_BASLER_EXCITE) 185#if defined(CONFIG_BASLER_EXCITE) || defined(CONFIG_MOMENCO_JAGUAR_ATX) || \
186 defined(CONFIG_MIPS_ATLAS) || defined(CONFIG_MIPS_MALTA) || \
187 defined(CONFIG_MOMENCO_OCELOT) || defined(CONFIG_MOMENCO_OCELOT_3) || \
188 defined(CONFIG_MOMENCO_OCELOT_C) || defined(CONFIG_PMC_YOSEMITE) || \
189 defined(CONFIG_SGI_IP32) || defined(CONFIG_WR_PPMC)
186#define ICACHE_REFILLS_WORKAROUND_WAR 1 190#define ICACHE_REFILLS_WORKAROUND_WAR 1
187#endif 191#endif
188 192
189 193
190/* 194/*
191 * ON the R10000 upto version 2.6 (not sure about 2.7) there is a bug that 195 * On the R10000 upto version 2.6 (not sure about 2.7) there is a bug that
192 * may cause ll / sc and lld / scd sequences to execute non-atomically. 196 * may cause ll / sc and lld / scd sequences to execute non-atomically.
193 */ 197 */
194#ifdef CONFIG_SGI_IP27 198#ifdef CONFIG_SGI_IP27