From: Ralf Baechle Date: Thu, 5 Jul 2007 07:14:21 +0000 (+0100) Subject: [MIPS] RM7000: Enable ICACHE_REFILLS_WORKAROUND_WAR. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=075c733e19ce7530b53b78151cc4d303c8f64548;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git [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 --- diff --git a/include/asm-mips/war.h b/include/asm-mips/war.h index 13a3502eef4..ec0eeebd880 100644 --- a/include/asm-mips/war.h +++ b/include/asm-mips/war.h @@ -177,18 +177,22 @@ #endif /* - * The RM9000 has 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. - */ -#if defined(CONFIG_MOMENCO_JAGUAR_ATX) || defined(CONFIG_MOMENCO_OCELOT_3) || \ - defined(CONFIG_PMC_YOSEMITE) || defined(CONFIG_BASLER_EXCITE) + * 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. + */ +#if defined(CONFIG_BASLER_EXCITE) || defined(CONFIG_MOMENCO_JAGUAR_ATX) || \ + defined(CONFIG_MIPS_ATLAS) || defined(CONFIG_MIPS_MALTA) || \ + defined(CONFIG_MOMENCO_OCELOT) || defined(CONFIG_MOMENCO_OCELOT_3) || \ + defined(CONFIG_MOMENCO_OCELOT_C) || defined(CONFIG_PMC_YOSEMITE) || \ + defined(CONFIG_SGI_IP32) || defined(CONFIG_WR_PPMC) #define ICACHE_REFILLS_WORKAROUND_WAR 1 #endif /* - * ON the R10000 upto version 2.6 (not sure about 2.7) there is a bug that + * On the R10000 upto version 2.6 (not sure about 2.7) there is a bug that * may cause ll / sc and lld / scd sequences to execute non-atomically. */ #ifdef CONFIG_SGI_IP27