KAMEZAWA Hiroyuki wrote:
Note1: icache flush is called only when VM_EXEC flag is on and PG_arch_1 is not set.
If you have not got the page in the cache, then the new page will be allocated with PG_arch_1 bit off. You are going to flush pages which are read by HW DMA, i.e. the L2I of Montecito does not keep old lines for those pages anyway. ...->a_ops->readpage() of "L2I safe" file systems should set PG_arch_1 if the CPU is ia64 and it has got separate L2I. On the other hand, arch. independent file systems should not play with PG_arch_1. The base kernel should export a macro for the file systems... Thanks, Zoltan Menyhart - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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