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正式名称は Rock Pi 4 Model C
| SoC | Rockchip RK3399 |
| CPU | Cortex A53 4Core 1.4GHz+A72 2Core 1.8GHz |
| GPU | Mali-T860 MP4 Quad-Core |
| Memory | 4GB |
$ uname -a Linux linaro-alip 4.4.154-111-rockchip-g39b306a41b2d #1 SMP Wed Jul 8 15:03:52 UTC 2020 aarch64 GNU/Linux
$ lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 9.13 (stretch) Release: 9.13 Codename: stretch
$ cat /proc/cpuinfo processor : 0 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4 processor : 1 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4 processor : 2 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4 processor : 3 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd03 CPU revision : 4 processor : 4 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd08 CPU revision : 2 processor : 5 BogoMIPS : 48.00 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd08 CPU revision : 2 Serial : a313739d9b295d73
$ LD_SHOW_AUXV=1 lscpu AT_SYSINFO_EHDR: 0x7f9bc01000 AT_HWCAP: ff AT_PAGESZ: 4096 AT_CLKTCK: 100 AT_PHDR: 0x556231c040 AT_PHENT: 56 AT_PHNUM: 8 AT_BASE: 0x7f9bbd7000 AT_FLAGS: 0x0 AT_ENTRY: 0x556231fa48 AT_UID: 1000 AT_EUID: 1000 AT_GID: 1000 AT_EGID: 1000 AT_SECURE: 0 AT_RANDOM: 0x7fda6cf5d8 AT_EXECFN: /usr/bin/lscpu AT_PLATFORM: aarch64 Architecture: aarch64 Byte Order: Little Endian CPU(s): 6 On-line CPU(s) list: 0-5 Thread(s) per core: 1 Core(s) per socket: 3 Socket(s): 2 Model: 4 CPU max MHz: 1416.0000 CPU min MHz: 408.0000 BogoMIPS: 48.00 Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32
$ cat /sys/bus/cpu/devices/cpu?/cpufreq/cpuinfo_max_freq 1416000 1416000 1416000 1416000 1800000 1800000
$ cat /proc/meminfo | grep MemTotal MemTotal: 3902728 kB
$ gcc --version gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516 Copyright (C) 2016 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
$ cmake --version cmake version 3.7.2 CMake suite maintained and supported by Kitware (kitware.com/cmake).
$ ccache --version ccache version 3.3.4 Copyright (C) 2002-2007 Andrew Tridgell Copyright (C) 2009-2017 Joel Rosdahl This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
$ clinfo
Number of platforms 1
Platform Name ARM Platform
Platform Vendor ARM
Platform Version OpenCL 1.2 v1.r14p0-01rel0-git(a79caef).e1315d65458474a7b7d3598c7bfdc17e
Platform Profile FULL_PROFILE
Platform Extensions cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store
cl_khr_3d_image_writes cl_khr_fp64 cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_fp16 cl_khr_gl_sharing cl_khr_icd cl_khr_egl_event cl_khr_egl_image cl_khr_image2d_from_buffer
cl_arm_core_id cl_arm_printf cl_arm_thread_limit_hint cl_arm_non_uniform_work_group_size cl_arm_import_memory
Platform Extensions function suffix ARM
Platform Name ARM Platform
Number of devices 1
Device Name Mali-T860
Device Vendor ARM
Device Vendor ID 0x8602000
Device Version OpenCL 1.2 v1.r14p0-01rel0-git(a79caef).e1315d65458474a7b7d3598c7bfdc17e
Driver Version 1.2
Device OpenCL C Version OpenCL C 1.2 v1.r14p0-01rel0-git(a79caef).e1315d65458474a7b7d3598c7bfdc17e
Device Type GPU
Device Profile FULL_PROFILE
Max compute units 4
Max clock frequency 200MHz
Device Partition (core)
Max number of sub-devices 0
Supported partition types None
Max work item dimensions 3
Max work item sizes 256x256x256
Max work group size 256
Preferred work group size multiple 4
Preferred / native vector sizes
char 16 / 16
short 8 / 8
int 4 / 4
long 2 / 2
half 8 / 8 (cl_khr_fp16)
float 4 / 4
double 2 / 2 (cl_khr_fp64)
Half-precision Floating-point support (cl_khr_fp16)
Denormals Yes
Infinity and NANs Yes
Round to nearest Yes
Round to zero Yes
Round to infinity Yes
IEEE754-2008 fused multiply-add Yes
Support is emulated in software No
Correctly-rounded divide and sqrt operations No
Single-precision Floating-point support (core)
Denormals Yes
Infinity and NANs Yes
Round to nearest Yes
Round to zero Yes
Round to infinity Yes
IEEE754-2008 fused multiply-add Yes
Support is emulated in software No
Correctly-rounded divide and sqrt operations No
Double-precision Floating-point support (cl_khr_fp64)
Denormals Yes
Infinity and NANs Yes
Round to nearest Yes
Round to zero Yes
Round to infinity Yes
IEEE754-2008 fused multiply-add Yes
Support is emulated in software No
Correctly-rounded divide and sqrt operations No
Address bits 64, Little-Endian
Global memory size 3995148288 (3.721GiB)
Error Correction support No
Max memory allocation 998787072 (952.5MiB)
Unified memory for Host and Device Yes
Minimum alignment for any data type 128 bytes
Alignment of base address 1024 bits (128 bytes)
Global Memory cache type Read/Write
Global Memory cache size 262144
Global Memory cache line 64 bytes
Image support Yes
Max number of samplers per kernel 16
Max size for 1D images from buffer 65536 pixels
Max 1D or 2D image array size 2048 images
Base address alignment for 2D image buffers 32 bytes
Pitch alignment for 2D image buffers 16 bytes
Max 2D image size 65536x65536 pixels
Max 3D image size 65536x65536x65536 pixels
Max number of read image args 128
Max number of write image args 8
Local memory type Global
Local memory size 32768 (32KiB)
Max constant buffer size 65536 (64KiB)
Max number of constant args 8
Max size of kernel argument 1024
Queue properties
Out-of-order execution Yes
Profiling Yes
Prefer user sync for interop No
Profiling timer resolution 1000ns
Execution capabilities
Run OpenCL kernels Yes
Run native kernels No
printf() buffer size 1048576 (1024KiB)
Built-in kernels
Device Available Yes
Compiler Available Yes
Linker Available Yes
Device Extensions cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_byte_addressable_store
cl_khr_3d_image_writes cl_khr_fp64 cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_fp16 cl_khr_gl_sharing cl_khr_icd cl_khr_egl_event cl_khr_egl_image cl_khr_image2d_from_buffer
cl_arm_core_id cl_arm_printf cl_arm_thread_limit_hint cl_arm_non_uniform_work_group_size cl_arm_import_memory
NULL platform behavior
clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...) ARM Platform
clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...) Success [ARM]
clCreateContext(NULL, ...) [default] Success [ARM]
clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU) Success (1)
Platform Name ARM Platform
Device Name Mali-T860
clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL) Success (1)
Platform Name ARM Platform
Device Name Mali-T860
ICD loader properties
ICD loader Name OpenCL ICD Loader
ICD loader Vendor OCL Icd free software
ICD loader Version 2.2.11
ICD loader Profile OpenCL 2.1
