tile: remove #pragma unroll from finv_buffer_remote()
This directive was put in the kernel source before the "pragma unroll" support for tilegx gcc was upstreamed. Remove it for now, and we can put it back later if/when the compiler support is upstreamed. This avoids a warning when building the kernel. This routine is not on a hot path in any case, so the extra optimization here was mostly just for its own sake. Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
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@ -138,19 +138,13 @@ finv_buffer_remote(void *buffer, size_t size, int hfh)
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if ((unsigned long)base < (unsigned long)buffer)
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base = buffer;
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/*
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* Fire all the loads we need. The MAF only has eight entries
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* so we can have at most eight outstanding loads, so we
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* unroll by that amount.
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*/
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#pragma unroll 8
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/* Fire all the loads we need. */
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for (; p >= base; p -= step_size)
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force_load(p);
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/*
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* Repeat, but with finv's instead of loads, to get rid of the
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* data we just loaded into our own cache and the old home L3.
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* No need to unroll since finv's don't target a register.
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* The finv's are guaranteed not to actually flush the data in
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* the buffer back to their home, since we just read it, so the
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* lines are clean in cache; we will only invalidate those lines.
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