xtensa: Add mt8195_adsp toolchain

Yet another Xtensa SOC for the SDK.  Mostly the same as the other LX
cores, but different enough to not be able to share code. (No MULUH
instruction on this model, which breaks on compiler-generated 64 bit
multiplies).

Signed-off-by: Andy Ross <andyross@google.com>

Author: andyross

.github/workflows/ci.yml

@@ -56,6 +56,7 @@ on:
         - xtensa-espressif_esp32s3_zephyr-elf
         - xtensa-intel_ace15_mtpm_zephyr-elf
         - xtensa-intel_tgl_adsp_zephyr-elf
+        - xtensa-mt8195_adsp_zephyr-elf
         - xtensa-nxp_imx_adsp_zephyr-elf
         - xtensa-nxp_imx8m_adsp_zephyr-elf
         - xtensa-nxp_rt500_adsp_zephyr-elf
@@ -166,6 +167,7 @@ jobs:
             xtensa-espressif_esp32s3_zephyr-elf)  build_target_xtensa_espressif_esp32s3_zephyr_elf="y";;
             xtensa-intel_ace15_mtpm_zephyr-elf)   build_target_xtensa_intel_ace15_mtpm_zephyr_elf="y";;
             xtensa-intel_tgl_adsp_zephyr-elf)     build_target_xtensa_intel_tgl_adsp_zephyr_elf="y";;
+            xtensa-mt8195_adsp_zephyr-elf)        build_target_xtensa_mt8195_adsp_zephyr_elf="y";;
             xtensa-nxp_imx_adsp_zephyr-elf)       build_target_xtensa_nxp_imx_adsp_zephyr_elf="y";;
             xtensa-nxp_imx8m_adsp_zephyr-elf)     build_target_xtensa_nxp_imx8m_adsp_zephyr_elf="y";;
             xtensa-nxp_rt500_adsp_zephyr-elf)     build_target_xtensa_nxp_rt500_adsp_zephyr_elf="y";;
@@ -204,6 +206,7 @@ jobs:
           build_target_xtensa_espressif_esp32s3_zephyr_elf="y"
           build_target_xtensa_intel_ace15_mtpm_zephyr_elf="y"
           build_target_xtensa_intel_tgl_adsp_zephyr_elf="y"
+          build_target_xtensa_mt8195_adsp_zephyr_elf="y"
           build_target_xtensa_nxp_imx_adsp_zephyr_elf="y"
           build_target_xtensa_nxp_imx8m_adsp_zephyr_elf="y"
           build_target_xtensa_nxp_rt500_adsp_zephyr_elf="y"
@@ -282,6 +285,7 @@ jobs:
         [ "${build_target_xtensa_espressif_esp32s3_zephyr_elf}" == "y" ]  && MATRIX_TARGETS+='"xtensa-espressif_esp32s3_zephyr-elf",'
         [ "${build_target_xtensa_intel_ace15_mtpm_zephyr_elf}" == "y" ]   && MATRIX_TARGETS+='"xtensa-intel_ace15_mtpm_zephyr-elf",'
         [ "${build_target_xtensa_intel_tgl_adsp_zephyr_elf}" == "y" ]     && MATRIX_TARGETS+='"xtensa-intel_tgl_adsp_zephyr-elf",'
+        [ "${build_target_xtensa_mt8195_adsp_zephyr_elf}" == "y" ]        && MATRIX_TARGETS+='"xtensa-mt8195_adsp_zephyr-elf",'
         [ "${build_target_xtensa_nxp_imx_adsp_zephyr_elf}" == "y" ]       && MATRIX_TARGETS+='"xtensa-nxp_imx_adsp_zephyr-elf",'
         [ "${build_target_xtensa_nxp_imx8m_adsp_zephyr_elf}" == "y" ]     && MATRIX_TARGETS+='"xtensa-nxp_imx8m_adsp_zephyr-elf",'
         [ "${build_target_xtensa_nxp_rt500_adsp_zephyr_elf}" == "y" ]     && MATRIX_TARGETS+='"xtensa-nxp_rt500_adsp_zephyr-elf",'
@@ -1542,6 +1546,9 @@ jobs:
             xtensa-intel_tgl_adsp_zephyr-elf)
               PLATFORM_ARGS+="-p intel_adsp_cavs25 "
               ;;
+            xtensa-mt8195_adsp_zephyr-elf)
+              PLATFORM_ARGS+="-p mt8195_adsp "
+              ;;
             xtensa-nxp_imx_adsp_zephyr-elf)
               PLATFORM_ARGS+="-p nxp_adsp_imx8 "
               ;;

README.md

@@ -16,7 +16,7 @@ The toolchains for the following target architectures are supported:
 - x86 (32-bit and 64-bit)
 - Xtensa (sample_controller, intel_ace15_mtpm, intel_tgl_adsp,
   nxp_imx_adsp, nxp_imx8m_adsp, nxp_rt500_adsp, espressif_esp32, espressif_esp32s2,
-  espressif_esp32s3)
+  espressif_esp32s3, mt8195_adsp)
 
 The following host tools are available as part of the Zephyr SDK:
 

configs/xtensa-mt8195_adsp_zephyr-elf.config

@@ -0,0 +1,10 @@
+CT_CONFIG_VERSION="3"
+CT_EXPERIMENTAL=y
+CT_OVERLAY_LOCATION="overlays"
+CT_OVERLAY_NAME="mtk_mt8195"
+CT_ARCH_XTENSA=y
+CT_XTENSA_CUSTOM=y
+CT_TARGET_VENDOR="mtk_mt8195_zephyr"
+CT_TARGET_CFLAGS="-ftls-model=local-exec"
+CT_CC_GCC_CONFIG_TLS=n
+CT_GDB_CROSS_EXTRA_CONFIG_ARRAY="--enable-xtensa-use-target-regnum --disable-xtensa-remote-g-packet"