Linaro is a not-for-profit engineering organization with over 120 engineers that leads open source software development for ARM technology. It works to help its members optimize Linux and other open source software to bring high-quality products to market quickly. Some of Linaro's achievements include contributions to the Linux kernel, developing the Linaro ARM GCC toolchain, and setting up continuous integration and testing systems. Linaro also works to upstream its optimizations and ensure they are included in the mainline Linux kernel.

1. Age: 1.5 years
Linaro™
Sponsored by:

2. Slide 2
 Linaro
 ARM Technology
 Diversity & Platforms

3. Slide 3
About Linaro
GOALS
 To lead Open Source software
development on ARM
 To help members get high
quality OSS-based products to
market as quickly as possible
 Not-for-profit software
engineering company
 Over 120 full time engineers
Members

4. Slide 4
Linaro – Some Achievements so far
 The kernel.org arm-soc tree
 The Linaro ARM gcc toolchain
 DeviceTree on ARM
 LAVA Continuous Integration
& Testing
 Kernel Memory Management
 Building the Linaro Team

5. Slide 5
ARM SoC Linux Optimization
 ~400 patches/
month (>80%
accepted)
Multi-core
ARM Cortex-A
class processor
Instruction
Cache
Neon
Peripherals
Power
management
Memory
subsystem
Multimedia
acceleration
Data
Cache
L2 Cache
Connectivity Security
Timers
InterruptsLinaro
optimizes
Linux for the
whole SoC
 ~30% for
members

6. Slide 6
Linaro & Upstreaming
Source: LWN, Sept 28, 2011
0
100
200
300
400
500
600
700
800
900
Also notable is the
continued slow climb by
companies such as TI
and Samsung [….]
Contributions by Linaro
assignees are normally
credited back to their
home companies.
Nonetheless, Linaro
makes an appearance
on its own here as a
result of the work of an
increasing number of
engineers employed by
[Linaro] itself.
Top Contributors - Patch Sets for Linux 3.0
(Excludes “None” and “Unknown”)

7. Slide 7
ARM Hardware
 ARM Cortex A15
 ARM Cortex A7
 big.LITTLE
 ARMv8 – 64 bit
 Building blocks for
differentiation and
innovation
http://www.arm.com/files/downloads/ARMv8_Architecture.pdf

8. Slide 8
The Importance of the Platform
000’s of boards 100,000’s of applications
Platforms
 What is a platform?
 Examples: ISA, iOS
 ARM SoCs
 We need to improve
 Continue to develop
the ARM Open Source
Software Platform and
leverage that to
differentiate
 Everyone will benefit

9. Slide 9
Faster Innovation
 Powered by Open
Source Software

10. Slide 10
Where does Linaro Fit?
 Leadership in OSS for ARM
 Improve the ARM OSS Platform
 ARM SoC Enablement for key distributions
 Sharing member resources to invest in
open source software on ARM

11. Slide 11
 Linaro Mini-Summits
 ARM Server Tuesday 9-12pm Grand Sierra I
 Set Top Box/Digital TV Wednesday 9-12pm Grand Sierra I
 Graphics Power Mgmt Thursday 9-10am Grand Sierra I
 IVI Friday 9-10am Grand Siera I
 Plenary Session
 ARM’s latest technology Wednesday 2pm Grand Ballroom
 Linaro Meeting Today 2pm Grand Sierra F
This Week

12. Slide 12
www.linaro.org
wiki.linaro.org