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authorChris Metcalf <cmetcalf@mellanox.com>2016-09-06 15:56:15 -0400
committerChris Metcalf <cmetcalf@mellanox.com>2016-12-16 15:32:29 -0500
commit870ee4ff5647dbf024f99ba5e56d0f3c344f1511 (patch)
treeeb252d40e4916b6fdae14272b18c95c1a46344e7 /arch
parent8e36f722f73f2fc1766af1af0b2f56f2299ba687 (diff)
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/tile/lib/cacheflush.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/tile/lib/cacheflush.c b/arch/tile/lib/cacheflush.c
index 9c0ec22009a5..c1ebc1065fc1 100644
--- a/arch/tile/lib/cacheflush.c
+++ b/arch/tile/lib/cacheflush.c
@@ -138,19 +138,13 @@ finv_buffer_remote(void *buffer, size_t size, int hfh)
if ((unsigned long)base < (unsigned long)buffer)
base = buffer;
- /*
- * Fire all the loads we need. The MAF only has eight entries
- * so we can have at most eight outstanding loads, so we
- * unroll by that amount.
- */
-#pragma unroll 8
+ /* Fire all the loads we need. */
for (; p >= base; p -= step_size)
force_load(p);
/*
* 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 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.