Hi experts,
I want to knows why there are 4 core cores per cluster in ARM big.Littte architecture?
Is it possiable if we make more cores per cluster? if not, what is the limitation?
Hi experts,
I want to knows why there are 4 core cores per cluster in ARM big.Littte architecture?
Is it possiable if we make more cores per cluster? if not, what is the limitation?
Hi,
I am new to the ARM community. I am currently studying the HSA (Heterogeneous System Architecture). ARM is member of this foundation.
I wonder which processor from ARM is HSA enabled? And on which devkit (raspberry, ODROID, or other) So I can use it…
When two clusters(Big/Little) exist in SoC, the timer can be used to support Synchronization between two clusters.
But How to understand "Synchronization", anybody can tell me some typical application context? I am really confused......
And, if…
Hi Experts,
I'm developing some kind of Secure OS on A57/53 big.LITTLE SoC.
While multi-core testing, I'm facing some wired problem on my world shared memory mechanism.
When I run world shared memory test on a single core (using affinity), it works…
Hi,
I'm wondering, if one core could debug another one on the same or another cluster in an MP/BigLitte system ?
The use case would be a kernel debugger and the debug…
Hello experts.
I making a security operating system using trustzone using ARMv8 big-little core.
I face some probleam of cache clean or invalidate.
I want to cache flush to used only secure-world memory based on virtual memory, no flush non-secure world…
Hi,
I'm trying to find out what level is the out-most level of inner shareable domain. Is there any register to get this information? I want to know what inner shareable domain is in A53 big-LITTLE architecture. I find some articles that telling L1 and…
Is the fabric topology in the DynamIQ cluster a conventional cross bar or a ring/mesh?
The Energy Aware Scheduler (EAS) is now available as part of Linux 5.0. It enables energy-efficient scheduling decisions on big.LITTLE and DynamIQ Arm platforms by choosing the right type of CPU for each task.
EAS is an extension of the…
As discussed in my previous blog, we have now reached the second wave of Windows 10 ‘Always On, Always Connected’ PCs with Snapdragon SoCs based on Arm Cortex technology. A new Arm-commissioned Whitepaper from Shrout Research shows how Windows…
Chinese Version 中文版:扩展系统一致性 - 第 1 部分 - 缓存一致性基本信息
The theme of TechCon 2013 was “Where intelligence connects” and in many ways hardware system coherency is an important part of connecting the intelligence of an SoC. This year I presented…
The Arm Cortex-A53 was introduced to the market in October 2012, delivering the Armv8 instruction set and significantly increased performance in a highly efficient power and area footprint. It is available for licensing now, and will be deployed in silicon…
I'm doing some testing on Exynos5422 SoC which implements big.LITTLE architecture (A7 + A15), I'm running bare metal application which starts in HYP mode. I haven't returned from HYP mode by accident and then software delay which I implemented by simple…

Are you in the Austin for DAC 2017, June 18-22? Be sure to look up a tutorial I am presenting in collaboration with our training partner Doulos.
In the session, Multicore Software Development on Arm, delivered with David Black, one of Doulos's senior instructors…
Its seems like it was only yesterday when we announced the Arm Cortex-A73, the most power-efficient high-performance Cortex application processor to date. Today we can see Cortex-A73 in production, powering cutting-edge devices in the mobile and consumer…
Have you heard? There are a couple of new CPUs in town... and they pack a punch! Of course, I am talking about the Arm Cortex-A75 and Cortex-A55, the first Cortex-A processors based on the recently announced, DynamIQ technology. In this blog, we will…
Soshun Arai, Arm and Mark Sykes, Recognition Technologies discuss the next generation of embedded voice for the automotive cockpit.
Recognition Technologies is a partner of Arm and their RecoMadeEasy® software provides embedded natural language speech…
The recent announcement of Arm DynamIQ technology has generated a lot of curiosity within both the tech industry and the tech-savvy consumers, regarding the impact on the future of big.LITTLE technology. The short answer is that big.LITTLE technology is…
We are in the age of connected intelligence, and it is completely transforming how we live. I see technology making decisions for us regularly and anticipating our next move. Most of the time my devices know what I want even before I know what I want…
In the past four years alone, we have witnessed an amazing expansion of compute. Go inside the numbers of the recent 100 billion Arm-based chips milestone and you will see that 50 billion were shipped by our partners from 2013 to 2017, which demonstrates…
There seems to be great confusion in some communities with regards to how products are marketed and I am seeking some clarification.
Earlier on this year, at an exhibition, Rockchip were showing off their new RK3288 CPU and has an advertising board that…
I am interested in buying a Juno development board, but have a set of technical questions related to the platform, namely:
(1) What are the migration modes that are available on the ARMv8 big.LITTLE? In particular, can I use both Cluster and Global…
Today we have exciting news: ARM and Intel Custom Foundry have announced an agreement to accelerate the development and implementation of ARM SoCs on Intel’s 10nm process. Specifically, we are making ARM’s Artisan® Physical IP available…
Power management is important, and has become increasingly complex. Recently, we have created an application note. See details below. Hopefully, you will find it useful.