* core (if "!hfh") or homed via hash-for-home (if "hfh"), waiting
* until the memory controller holds the flushed values.
*/
-void finv_buffer_remote(void *buffer, size_t size, int hfh)
+void __attribute__((optimize("omit-frame-pointer")))
+finv_buffer_remote(void *buffer, size_t size, int hfh)
{
char *p, *base;
size_t step_size, load_count;
force_load(p);
/*
- * Repeat, but with inv's instead of loads, to get rid of the
+ * Repeat, but with finv's instead of loads, to get rid of the
* data we just loaded into our own cache and the old home L3.
- * No need to unroll since inv's don't target a register.
+ * No need to unroll since finv's don't target a register.
+ * The finv's are guaranteed not to actually flush the data in
+ * the buffer back to their home, since we just read it, so the
+ * lines are clean in cache; we will only invalidate those lines.
*/
p = (char *)buffer + size - 1;
- __insn_inv(p);
+ __insn_finv(p);
p -= step_size;
p = (char *)((unsigned long)p | (step_size - 1));
for (; p >= base; p -= step_size)
- __insn_inv(p);
+ __insn_finv(p);
- /* Wait for the load+inv's (and thus finvs) to have completed. */
+ /* Wait for these finv's (and thus the first finvs) to be done. */
__insn_mf();
#ifdef __tilegx__