X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvppinfra%2Fcache.h;h=e8e89ba855638e8011c29dbe4d180a948df0eb18;hb=2e2372117d35191a0e6c096c5f989930de6e12b1;hp=e5c678eb51734ecd2421b780d51a02234eb05696;hpb=ab2c5603a107f39e680ecb2b717f2722d613ecbe;p=vpp.git

diff --git a/src/vppinfra/cache.h b/src/vppinfra/cache.h
index e5c678eb517..e8e89ba8556 100644
--- a/src/vppinfra/cache.h
+++ b/src/vppinfra/cache.h
@@ -41,7 +41,7 @@
 #include <vppinfra/error_bootstrap.h>
 
 /*
- * Allow CFLAGS to override the arch-specific cache line size
+ * Allow CFLAGS to override the configured / deduced cache line size
  */
 #ifndef CLIB_LOG2_CACHE_LINE_BYTES
 
@@ -59,6 +59,11 @@
 #define CLIB_CACHE_LINE_BYTES (1 << CLIB_LOG2_CACHE_LINE_BYTES)
 #define CLIB_CACHE_LINE_ALIGN_MARK(mark) u8 mark[0] __attribute__((aligned(CLIB_CACHE_LINE_BYTES)))
 
+/* Default cache line fill buffers. */
+#ifndef CLIB_N_PREFETCHES
+#define CLIB_N_PREFETCHES 16
+#endif
+
 /* Read/write arguments to __builtin_prefetch. */
 #define CLIB_PREFETCH_READ 0
 #define CLIB_PREFETCH_LOAD 0	/* alias for read */