Audio: SRC: Add HiFi5 version, as copy of HiFi4 version

Copying the file as such from HiFi4 and adding it to build
as preparation for optimizations.

The src_config.h is updated to follow the kconfig of FILTER
(CONFIG_FILTER_HIFI_NONE, CONFIG_FILTER_HIFI_3, etc.). The
gcc build is no more forced to use 16 bit SRC mode. It's a
limitation from HiFi2 platform BYT. The new platforms are
powerful enough to run it.

Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>

Author: singalsu

src/audio/src/CMakeLists.txt

@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: BSD-3-Clause
 
-add_local_sources(sof src_generic.c src_hifi2ep.c src_hifi3.c src_hifi4.c src_common.c src.c)
+add_local_sources(sof src_generic.c src_hifi2ep.c src_hifi3.c src_hifi4.c src_hifi5.c src_common.c src.c)
 
 if(CONFIG_IPC_MAJOR_3)
 	add_local_sources(sof src_ipc3.c)

src/audio/src/src_config.h

@@ -8,55 +8,24 @@
 #ifndef __SOF_AUDIO_SRC_SRC_CONFIG_H__
 #define __SOF_AUDIO_SRC_SRC_CONFIG_H__
 
-
-
-/* If next define is set to 1 the SRC is configured automatically. Setting
- * to zero temporarily is useful is for testing needs.
- */
-#define SRC_AUTOARCH    1
-
-/* Force manually some code variant when SRC_AUTODSP is set to zero. These
- * are useful in code debugging.
- */
-#if SRC_AUTOARCH == 0
-#define SRC_GENERIC	1
-#define SRC_HIFIEP	0
-#define SRC_HIFI3	0
-#endif
-
-/* Select optimized code variant when xt-xcc compiler is used */
-#if SRC_AUTOARCH == 1
-#if defined __XCC__
-#include <xtensa/config/core-isa.h>
-#define SRC_GENERIC	0
-#if XCHAL_HAVE_HIFI4 == 1
-#define SRC_HIFI4	1
-#define SRC_HIFI3	0
-#define SRC_HIFIEP	0
+#include <sof/common.h>
+
+/* Follow kconfig for FILTER in SRC component */
+#if SOF_USE_MIN_HIFI(5, FILTER)
+#define SRC_HIFI5      1
+#elif SOF_USE_MIN_HIFI(4, FILTER)
+#define SRC_HIFI4      1
+#elif SOF_USE_MIN_HIFI(3, FILTER)
+#define SRC_HIFI3      1
+#elif SOF_USE_HIFI(2, FILTER)
+#define SRC_HIFIEP     1
 #else
-#define SRC_HIFI4	0
-#if XCHAL_HAVE_HIFI2EP == 1
-#define SRC_HIFIEP	1
-#define SRC_HIFI3	0
-#endif
-#if XCHAL_HAVE_HIFI3 == 1
-#define SRC_HIFI3	1
-#define SRC_HIFIEP	0
-#endif
-#endif
-#else
-/* GCC */
-#define SRC_GENERIC	1
-#define SRC_HIFIEP	0
-#define SRC_HIFI3	0
-#if CONFIG_LIBRARY
-#else
-#define SRC_SHORT	1 /* Need to use for generic code version speed */
-#endif
-#endif
+#define SRC_GENERIC    1
 #endif
 
-/* Kconfig option tiny needs 16 bits coefficients, other options use 32 bits */
+/* Kconfig option tiny needs 16 bits coefficients, other options use 32 bits,
+ * also gcc builds for all platforms and testbench (library)
+ */
 #if !defined(SRC_SHORT)
 #if CONFIG_COMP_SRC_TINY
 #define SRC_SHORT	1 /* 16 bit coefficients filter core */