Initial commit of Hyperscan

src/util/scatter_runtime.h

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2015, Intel Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef UTIL_SCATTER_RUNTIME_H
+#define UTIL_SCATTER_RUNTIME_H
+
+#include "scatter.h"
+
+#include "uniform_ops.h"
+
+#define SCATTER_DEF(t)                                                        \
+static really_inline                                                          \
+void scatter_##t(void *out, const struct scatter_unit_##t *plan, u32 count) { \
+    for (u32 i = 0; i < count; i++) {                                         \
+        const struct scatter_unit_##t *item = plan + i;                       \
+        DEBUG_PRINTF("storing %llu into offset %u\n", (u64a)item->val, \
+                     item->offset);                                     \
+        storeu_##t((char *)out + item->offset, item->val);              \
+    }                                                                         \
+}
+
+SCATTER_DEF(u64a)
+SCATTER_DEF(u32)
+SCATTER_DEF(u16)
+SCATTER_DEF(u8)
+
+#undef SCATTER_DEF
+
+static really_inline
+void scatter(void *out, const void *base, const struct scatter_full_plan *p) {
+#define RUN_SUB(t)                                      \
+    if (p->s_##t##_offset) {                            \
+        assert(p->s_##t##_count);                       \
+        const struct scatter_unit_##t *pp               \
+            = (const void *)(b + p->s_##t##_offset);    \
+        scatter_##t(out, pp, p->s_##t##_count);         \
+    }
+
+    const char *b = base;
+
+    RUN_SUB(u64a);
+    RUN_SUB(u32);
+    RUN_SUB(u16);
+    RUN_SUB(u8);
+
+#undef RUN_SUB
+}
+
+#endif