tile: do less L1 I-cache eviction

We had been doing an automatic full eviction of the L1 I$
everywhere whenever we did a kernel-space TLB flush. It turns
out this isn't necessary, since all the callers already handle
doing a flush if necessary.

Signed-off-by: Chris Metcalf <[e-mail]>

arch/tile/kernel/tlb.c

···
 	}
 }
 
+/*
+ * Callers need to flush the L1I themselves if necessary, e.g. for
+ * kernel module unload.  Otherwise we assume callers are not using
+ * executable pgprot_t's.  Using EVICT_L1I means that dataplane cpus
+ * will get an unnecessary interrupt otherwise.
+ */
 void flush_tlb_kernel_range(unsigned long start, unsigned long end)
 {
-	flush_remote(0, HV_FLUSH_EVICT_L1I, cpu_online_mask,
+	flush_remote(0, 0, NULL,
 		     start, end - start, PAGE_SIZE, cpu_online_mask, NULL, 0);
 }