I want to re-compile the “galcore.ko” file from Linux kernel source to do an additional experiments and aggressive optimization for Ubuntu 18.04_SD/VIM3 Pro board. I confirmed the location of the Linux kernel source for Ubuntu 18.04_SD/VIM3 Pro board.
And, I checked the location of ARM cross compiler at the below webpage.
Where can I find an instruction manual to recompile Linux kernel for VIM3 board directly?
We use Fenix to build Ubuntu/Debian images.
If you want to rebuild the kernel or modules you can follow the commands:
khadas@3a97a4844f91:~/fenix$ source env/setenv.sh #### select VIM3
khadas@3a97a4844f91:~/fenix$ make kernel
khadas@3a97a4844f91:~/fenix$ make kernel-deb
You can find the deb package in build/images/debs/0.7/linux-image-amlogic-4.9_0.7_arm64.deb
Copy linux-image-amlogic-4.9_0.7_arm64.deb to the board and install it.
$ sudo dpkg -i linux-image-amlogic-4.9_0.7_arm64.deb
$ source source env/setenv.sh
BTW, is this typo?
Yes, you are right, sorry…
I have a similar need for Yocto. The neither linux-meson64 nor linux-yocto builds the galcore.ko and other kernel modules needed for accessing NPU. Do we have a method or kernel sources / patches available to build it on a host machine?
So you just want to build the npu kernel driver out of the source tree?
Yes, that would bring-in more trust to the users of the solution that I am trying to build, based on your platform.
But if licenses or other reasons blocks my above goal, then at least I need a failure proof way to link / load the pre-built kernel modules and user space libraries and link/load them into the image that Yocto build generates.
You can use this build script to build npu driver out of the tree.
#!/bin/bash
set -e
########################################################
# establish build environment and build options value
# Please modify the following items according your build environment
if [ ! -z $1 ]; then
ARCH=$1
fi
PCROSS_TOOL_PATH=$3
CROSS=${PCROSS_TOOL_PATH##*/}
fstr=${PCROSS_TOOL_PATH%/*}
fstr=${fstr%/*}
echo "====cross"=$CROSS
echo "====ARCH"=$ARCH
export AQROOT=`pwd`
export AQARCH=$AQROOT/arch/XAQ2
export SDK_DIR=$AQROOT/build/sdk
case "$ARCH" in
arm)
ARCH=arm
export ARCH_TYPE=arm
export CPU_TYPE=cortex-a9
export CPU_ARCH=armv7-a
export FIXED_ARCH_TYPE=$1
export KERNEL_DIR=$2
export COMMON_DRIVERS_DIR=common_drivers
export CROSS_COMPILE=$CROSS
export TOOLCHAIN=$fstr/bin
export LIB_DIR=$fstr/libc/lib
export PATH=$TOOLCHAIN:$PATH
;;
arm64)
ARCH=arm64
export ARCH_TYPE=arm64
export CPU_TYPE=cortex-a53
export CPU_ARCH=armv8-a
export FIXED_ARCH_TYPE=$1
export KERNEL_DIR=$2
export COMMON_DRIVERS_DIR=common_drivers
export CROSS_COMPILE=$CROSS
export TOOLCHAIN=$fstr/bin
export LIB_DIR=$fstr/libc/lib
export PATH=$TOOLCHAIN:$PATH
;;
arm-yocto)
ARCH=arm
export ARCH_TYPE=$ARCH
export CPU_TYPE=cortex-a9
export CPU_ARCH=armv7-a
export FIXED_ARCH_TYPE=arm-yocto
export KERNEL_DIR=/home/software/Linux/YOCTO/L3.10.9_1.0.0_alpha_20131009
export TOOLCHAIN=/home/software/Linux/YOCTO/poky/sysroots/x86_64-pokysdk-linux/usr
export PATH=$TOOLCHAIN/bin:$TOOLCHAIN/bin/cortexa9hf-vfp-neon-poky-linux-gnueabi:$PATH
export CROSS_COMPILE=arm-poky-linux-gnueabi-
export ROOTFS=/home/software/Linux/YOCTO/x11-20130912221643
export ROOTFS_USR=$ROOTFS/usr
export X11_ARM_DIR=$ROOTFS/usr
export CFLAGS="-D__ARM_PCS_VFP --sysroot=$ROOTFS"
export LFLAGS="--sysroot=$ROOTFS"
export PFLAGS="--sysroot=$ROOTFS"
export FPU=vfp
export FLOAT_ABI=hard
BUILD_YOCTO_DRI_BUILD=1
;;
unicore)
export ARCH_TYPE=unicore
export CPU_TYPE=0
export CPU_ARCH=0
export FIXED_ARCH_TYPE=unicore
export KERNEL_DIR=/home/software/Linux/linux-2.6.32
export CROSS_COMPILE=unicore32-linux-
export TOOLCHAIN=/home/software/Linux/uc4-1.0-beta-hard-RHELAS5
export LIB_DIR=$TOOLCHAIN/unicore32-linux/lib
;;
tensilica)
export ARCH_TYPE=$ARCH
export CPU_TYPE=0
export CPU_ARCH=0
export FIXED_ARCH_TYPE=tensilica
# KERNEL_DIR=/home/software/Linux/linux-2.6.24.7
CROSS_COMPILE=xtensa_venus-linux-
TOOLCHAIN=/home/software/Linux/xtensa/staging_dir/usr
LIB_DIR=$TOOLCHAIN/lib
;;
ppc-be)
export ARCH_TYPE=powerpc
export CPU_TYPE=440
# '-be' mens big-endian
export FIXED_ARCH_TYPE=ppc-be
# set ENDIANNESS to build driver with little-endian
#export ENDIANNESS=-mlittle-endian
# KERNEL_DIR=/home/software/Linux/linux-2.6.27
export CROSS_COMPILE=ppc_4xx-
export TOOLCHAIN=/home/software/eldk/usr
export DEPMOD=$TOOLCHAIN/bin/depmod.pl
export LIB_DIR=/home/software/eldk/ppc_4xx/lib
;;
mips-le)
export ARCH_TYPE=$ARCH
export CPU_TYPE=0
export ARCH_TYPE=mips
export CPU_ARCH=34kf
#
# to select the right ES20 pre-built files
#
export FIXED_ARCH_TYPE=mips-le
#
# to build driver with little endin
#
export ENDIANNESS=-mel
export KERNEL_DIR=/home/software/Linux/linux-2.6.19-mips.le
export CROSS_COMPILE=mips-linux-gnu-
export TOOLCHAIN=/home/software/Linux/mips-4.4-5
export LIB_DIR=$TOOLCHAIN/mips-linux-gnu/libc/el/usr/lib
;;
mips-be)
export ARCH_TYPE=$ARCH
export CPU_TYPE=0
export ARCH_TYPE=mips
export CPU_ARCH=34kf
#
# to select the right ES20 pre-built files
#
export FIXED_ARCH_TYPE=mips-be
#
# to build driver with little endin
#
export ENDIANNESS=-meb
export KERNEL_DIR=/home/software/Linux/linux-2.6.19-mips.be
export CROSS_COMPILE=mips-linux-gnu-
export TOOLCHAIN=/home/software/Linux/mips-4.4-5
export LIB_DIR=$TOOLCHAIN/lib
;;
mips-le-24kc)
export ARCH_TYPE=mips
export CPU_ARCH=24kc
export CPU_TYPE=0
export FIXED_ARCH_TYPE=mips-le-24kc
#
# set build optons: little-endian
#
export ENDIANNESS=-mel
export KERNEL_DIR=/home/software/Linux/linux-2.6.19-mips.le
export CROSS_COMPILE=mipsel-linux-gnu-
export TOOLCHAIN=/home/software/Linux/tools-2.6.27
export LIB_DIR=$TOOLCHAIN/lib
;;
*)
echo "ERROR: Unknown $ARCH, or not support so far"
exit 1
;;
esac;
########################################################
# set special build options valule
# You can modify the build options for different results according your requirement
#
# option value description default value
# -------------------------------------------------------------------------------------
# DEBUG 1 Enable debugging. 0
# 0 Disable debugging.
#
# NO_DMA_COHERENT 1 Disable coherent DMA function. 0
# 0 Enable coherent DMA function.
#
# Please set this to 1 if you are not sure what
# it should be.
#
# ABI 0 Change application binary interface, default 0
# is 0 which means no setting
# aapcs-linux For example, build driver for Aspenite board
#
# LINUX_OABI 1 Enable this if build environment is ARM OABI. 0
# 0 Normally disable it for ARM EABI or other machines.
#
# USE_VDK 1 Eanble this one when the applications 0
# are using the VDK programming interface.
# 0 Disable this one when the applications
# are NOT using the VDK programming interface.
#
# Don't eanble gcdSTATIC_LINK (see below)
# at the same time since VDK will load some
# libraries dynamically.
#
# EGL_API_FB 1 Use the FBDEV as the GUI system for the EGL. 0
# 0 Use X11 system as the GUI system for the EGL.
#
# EGL_API_DRI 1 Use DRI to support X accelerator. 0
# EGL_API_FB and EGL_API_DFB must be 0.
# 0 Do not use DRI to support X accelerator.
#
# X11_DRI3 1 Use DRI3 framework to support X11. 0
# 0 Do not use DRI3 framework to support X11.
#
# EGL_API_DFB 1 Use directFB accelerator. 0
# EGL_API_FB and EGL_API_DRI must be 0.
# 0 Do not use directFB accelerator.
#
# gcdSTATIC_LINK 1 Enable static linking. 0
# 0 Disable static linking;
#
# Don't enable this one when you are building
# GFX driver and HAL unit tests since both of
# them need dynamic linking mechanisim.
# And it must NOT be enabled when USE_VDK=1.
#
# CUSTOM_PIXMAP 1 Use the user defined Pixmap format in EGL. 0
# 0 Use X11 pixmap format in EGL.
#
# ENABLE_GPU_CLOCK_BY_DRIVER 1 Set the GPU clock in the driver. 0
# 0 The GPU clock should be set by BSP.
#
# USE_FB_DOUBLE_BUFFER 0 Use single buffer for the FBDEV 0
# 1 Use double buffer for the FBDEV (NOTE: the FBDEV must support it)
#
#
# USE_PLATFORM_DRIVER 1 Use platform driver model to build kernel 1
# module on linux while kernel version is 2.6.
# 0 Use legecy kernel driver model.
#
# FPGA_BUILD 1 Set this option to 1 if you're running on 0
# FPGA board.
# 0
#
# USE_BANK_ALIGNMENT 1 Enable gcdENABLE_BANK_ALIGNMENT, and video memory is allocated bank aligned.
# The vendor can modify _GetSurfaceBankAlignment() and gcoSURF_GetBankOffsetBytes()
# to define how different types of allocations are bank and channel aligned.
# 0 Disabled (default), no bank alignment is done.
#
# BANK_BIT_START 0 Use default start bit of the bank defined in gc_hal_options.h
# [BANK_BIT_START] Specifies the start bit of the bank (inclusive).
# This option has an effect only when gcdENABLE_BANK_ALIGNMENT is enabled;
#
# BANK_BIT_END 0 Use default end bit of the bank defined in gc_hal_options.h
# [BANK_BIT_END] Specifies the end bit of the bank (inclusive);
# This option has an effect only when gcdENABLE_BANK_ALIGNMENT is enabled;
#
# BANK_CHANNEL_BIT 0 Use default channel bit defined in gc_hal_options.h
# [BANK_CHANNEL_BIT] When set to no-zero, video memory when allocated bank aligned is allocated such
# that render and depth buffer addresses alternate on the channel bit specified.
# This option has an effect only when gcdENABLE_BANK_ALIGNMENT is enabled.
#
BUILD_OPTION_DEBUG=1
BUILD_OPTION_ABI=0
BUILD_OPTION_LINUX_OABI=0
BUILD_OPTION_NO_DMA_COHERENT=1
BUILD_OPTION_USE_VDK=1
BUILD_OPTION_USE_VXC_BINARY=0
BUILD_OPTION_GPU_CONFIG="vipnanoqi_pid0x7d"
if [ -z $BUILD_OPTION_EGL_API_FB ]; then
BUILD_OPTION_EGL_API_FB=1
fi
if [ -z $BUILD_OPTION_EGL_API_DFB ]; then
BUILD_OPTION_EGL_API_DFB=0
fi
if [ -z $BUILD_OPTION_EGL_API_DRI ]; then
BUILD_OPTION_EGL_API_DRI=0
fi
if [ -z $BUILD_OPTION_X11_DRI3 ]; then
BUILD_OPTION_X11_DRI3=0
fi
if [ -z $BUILD_OPTION_EGL_API_WL ]; then
BUILD_OPTION_EGL_API_WL=0
fi
if [ -z $BUILD_OPTION_EGL_API_NULLWS ]; then
BUILD_OPTION_EGL_API_NULLWS=0
fi
BUILD_OPTION_gcdSTATIC_LINK=0
BUILD_OPTION_CUSTOM_PIXMAP=0
BUILD_OPTION_USE_3D_VG=1
if [ -z $BUILD_OPTION_USE_OPENCL ]; then
BUILD_OPTION_USE_OPENCL=1
fi
if [ -z $BUILD_OPTION_USE_OPENVX ]; then
BUILD_OPTION_USE_OPENVX=1
fi
if [ -z $BUILD_OPTION_USE_VULKAN ]; then
BUILD_OPTION_USE_VULKAN=0
fi
BUILD_OPTION_USE_FB_DOUBLE_BUFFER=0
BUILD_OPTION_USE_PLATFORM_DRIVER=1
if [ -z $BUILD_OPTION_ENABLE_GPU_CLOCK_BY_DRIVER ]; then
BUILD_OPTION_ENABLE_GPU_CLOCK_BY_DRIVER=0
fi
if [ -z $BUILD_YOCTO_DRI_BUILD ]; then
BUILD_YOCTO_DRI_BUILD=0
fi
BUILD_OPTION_CONFIG_DOVEXC5_BOARD=0
BUILD_OPTION_FPGA_BUILD=0
BUILD_OPTIONS="NO_DMA_COHERENT=$BUILD_OPTION_NO_DMA_COHERENT"
BUILD_OPTIONS="$BUILD_OPTIONS USE_VDK=$BUILD_OPTION_USE_VDK"
BUILD_OPTIONS="$BUILD_OPTIONS EGL_API_FB=$BUILD_OPTION_EGL_API_FB"
BUILD_OPTIONS="$BUILD_OPTIONS EGL_API_DFB=$BUILD_OPTION_EGL_API_DFB"
BUILD_OPTIONS="$BUILD_OPTIONS EGL_API_DRI=$BUILD_OPTION_EGL_API_DRI"
BUILD_OPTIONS="$BUILD_OPTIONS X11_DRI3=$BUILD_OPTION_X11_DRI3"
BUILD_OPTIONS="$BUILD_OPTIONS EGL_API_NULLWS=$BUILD_OPTION_EGL_API_NULLWS"
BUILD_OPTIONS="$BUILD_OPTIONS gcdSTATIC_LINK=$BUILD_OPTION_gcdSTATIC_LINK"
BUILD_OPTIONS="$BUILD_OPTIONS EGL_API_WL=$BUILD_OPTION_EGL_API_WL"
BUILD_OPTIONS="$BUILD_OPTIONS ABI=$BUILD_OPTION_ABI"
BUILD_OPTIONS="$BUILD_OPTIONS LINUX_OABI=$BUILD_OPTION_LINUX_OABI"
BUILD_OPTIONS="$BUILD_OPTIONS DEBUG=$BUILD_OPTION_DEBUG"
BUILD_OPTIONS="$BUILD_OPTIONS CUSTOM_PIXMAP=$BUILD_OPTION_CUSTOM_PIXMAP"
BUILD_OPTIONS="$BUILD_OPTIONS USE_3D_VG=$BUILD_OPTION_USE_3D_VG"
BUILD_OPTIONS="$BUILD_OPTIONS USE_OPENCL=$BUILD_OPTION_USE_OPENCL"
BUILD_OPTIONS="$BUILD_OPTIONS USE_OPENVX=$BUILD_OPTION_USE_OPENVX"
BUILD_OPTIONS="$BUILD_OPTIONS USE_VULKAN=$BUILD_OPTION_USE_VULKAN"
BUILD_OPTIONS="$BUILD_OPTIONS USE_FB_DOUBLE_BUFFER=$BUILD_OPTION_USE_FB_DOUBLE_BUFFER"
BUILD_OPTIONS="$BUILD_OPTIONS USE_PLATFORM_DRIVER=$BUILD_OPTION_USE_PLATFORM_DRIVER"
BUILD_OPTIONS="$BUILD_OPTIONS ENABLE_GPU_CLOCK_BY_DRIVER=$BUILD_OPTION_ENABLE_GPU_CLOCK_BY_DRIVER"
BUILD_OPTIONS="$BUILD_OPTIONS CONFIG_DOVEXC5_BOARD=$BUILD_OPTION_CONFIG_DOVEXC5_BOARD"
BUILD_OPTIONS="$BUILD_OPTIONS FPGA_BUILD=$BUILD_OPTION_FPGA_BUILD"
BUILD_OPTIONS="$BUILD_OPTIONS YOCTO_DRI_BUILD=$BUILD_YOCTO_DRI_BUILD"
BUILD_OPTIONS="$BUILD_OPTIONS USE_VXC_BINARY=$BUILD_OPTION_USE_VXC_BINARY"
BUILD_OPTIONS="$BUILD_OPTIONS GPU_CONFIG=$BUILD_OPTION_GPU_CONFIG"
#export PATH=$TOOLCHAIN/bin:$PATH
########################################################
# clean/build driver and samples
# build results will save to $SDK_DIR/
#
cd $AQROOT; make -j1 -f makefile.linux $BUILD_OPTIONS clean
cd $AQROOT; make -j64 -f makefile.linux $BUILD_OPTIONS install 2>&1 | tee $AQROOT/linux_build.log
rm galcore.o galcore.mod.o galcore.mod.c galcore.ko
########################################################
# other build/clean commands to build/clean specified items, eg.
#
# cd $AQROOT; make -f makefile.linux $BUILD_OPTIONS gal_core V_TARGET=clean || exit 1
# cd $AQROOT; make -f makefile.linux $BUILD_OPTIONS gal_core V_TARGET=install || exit 1
And apply patch to npu driver:
diff --git a/drivers/npu/Kbuild b/drivers/npu/Kbuild
index c2afe6f5c..8b4a94bf4 100755
--- a/drivers/npu/Kbuild
+++ b/drivers/npu/Kbuild
@@ -56,7 +56,7 @@
#
# Linux build file for kernel HAL driver.
#
-AQROOT = common_drivers/drivers/npu
+#AQROOT = common_drivers/drivers/npu
include $(AQROOT)/config
Using script to build:
export FENIX_ROOT=/home/nick/fenix
./build.sh arm64 $FENIX_ROOT/build/linux $FENIX_ROOT/build/toolchains/gcc-arm-aarch64-none-linux-gnu-mainline/bin/aarch64-none-linux-gnu-
The built modle located in ./build/sdk/drivers/galcore.ko.
NOTE: You need to setup cross compiler and environment your self.
Thanks Nick. Just to confirm, the above script can be used to build the kernel source listed below?
Not checked, but you can try.
I tried it, but the NPU patches in the following link were available only till kernel version 6.0.
Hence I used kernel version 6.0 and able to build a kernel with NPU driver in it. I am yet to use all the env settings you suggested (work-in-progress), but I think your script helped. Thanks.
But I see WiFi issue there, I am going through the community pages. I may create a new topic on that, if I couldn’t fix it.
If you need help, please let us know.
Okay, please create a new topic of your issues.