init

src/intel/shaders/util.cl

@@ -0,0 +1,65 @@
+/* Copyright © 2024 Intel Corporation
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "libintel_shaders.h"
+
+/* Memcpy data using multiple lanes. */
+void genX(libanv_memcpy)(global void *dst_base,
+                         global void *src_base,
+                         uint num_dwords,
+                         uint dword_offset)
+{
+   global void *dst = dst_base + 4 * dword_offset;
+   global void *src = src_base + 4 * dword_offset;
+
+   if (dword_offset + 4 <= num_dwords) {
+      *(global uint4 *)(dst) = *(global uint4 *)(src);
+   } else if (dword_offset + 3 <= num_dwords) {
+      *(global uint3 *)(dst) = *(global uint3 *)(src);
+   } else if (dword_offset + 2 <= num_dwords) {
+      *(global uint2 *)(dst) = *(global uint2 *)(src);
+   } else if (dword_offset + 1 <= num_dwords) {
+      *(global uint *)(dst) = *(global uint *)(src);
+   }
+}
+
+/* Copy size from src_ptr to dst_ptr for using a single lane with size
+ * multiple of 4.
+ */
+void genX(copy_data)(global void *dst_ptr,
+                     global void *src_ptr,
+                     uint32_t size)
+{
+   for (uint32_t offset = 0; offset < size; offset += 16) {
+      if (offset + 16 <= size) {
+         *(global uint4 *)(dst_ptr + offset) = *(global uint4 *)(src_ptr + offset);
+      } else if (offset + 12 <= size) {
+         *(global uint3 *)(dst_ptr + offset) = *(global uint3 *)(src_ptr + offset);
+      } else if (offset + 8 <= size) {
+         *(global uint2 *)(dst_ptr + offset) = *(global uint2 *)(src_ptr + offset);
+      } else if (offset + 4 <= size) {
+         *(global uint *)(dst_ptr + offset) = *(global uint *)(src_ptr + offset);
+      }
+   }
+}
+
+/* Copy size from src_ptr to dst_ptr for using a single lane with size
+ * multiple of 4.
+ */
+void genX(set_data)(global void *dst_ptr,
+                    uint32_t size,
+                    uint32_t data)
+{
+   for (uint32_t offset = 0; offset < size; offset += 16) {
+      if (offset + 16 <= size) {
+         *(global uint4 *)(dst_ptr + offset) = (uint4)(data);
+      } else if (offset + 12 <= size) {
+         *(global uint3 *)(dst_ptr + offset) = (uint3)(data);
+      } else if (offset + 8 <= size) {
+         *(global uint2 *)(dst_ptr + offset) = (uint2)(data);
+      } else if (offset + 4 <= size) {
+         *(global uint *)(dst_ptr + offset) = data;
+      }
+   }
+}