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authorRyan Harkin <ryan.harkin@linaro.org>2013-03-27 18:31:52 +0000
committerRyan Harkin <ryan.harkin@linaro.org>2013-03-27 18:31:52 +0000
commita5a111f3da49a3354940a55ed98dad42f099e2a7 (patch)
tree7a950eb6e5866226b903bab20d0f4479abaee38b
parentc124b0adf90abcfb83d37ffed6dff7decf656b18 (diff)
13.03 update from ARM about support contacts13.03
Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
-rw-r--r--HOWTO_releasenotes.txt2
-rw-r--r--README.textile2
2 files changed, 2 insertions, 2 deletions
diff --git a/HOWTO_releasenotes.txt b/HOWTO_releasenotes.txt
index 41dd367..c8bb0b6 100644
--- a/HOWTO_releasenotes.txt
+++ b/HOWTO_releasenotes.txt
@@ -10,7 +10,7 @@ The TC2 CoreTile is the first example of a big.LITTLE system shipped by ARM and
The release integrates big.LITTLE development work which can be traced in the big.LITTLE MP working group "git repo":http://git.linaro.org/gitweb?p=arm/big.LITTLE/mp.git;a=summary . *Note:* This repository has the following tree: big-LITTLE-MP-master-v16 that has been used for the 13.03 evaluation build. This tree includes the following patches that have been developed and qualified for correctness to enable the ARM Versatile Express V2P-CA15_A7 CoreTile (TC2) to run in full MP mode. This new functionality has been optimised for energy usage at near Cortex-A15 (big) performance. These patches are not currently ready to be submitted to the Linux mainline for integration (upstreaming), since they do not yet work seamlessly with the load-balancer. Work is ongoing to make the load-balancer more big.LITTLE aware, making the changes suitable for integration into the Linux mainline.
-This release introduces optional configurable kernel support for an example implementation of ARM's Power State Co-ordination Interface (PSCI). This support is disabled by default. Using PSCI support requires the use of secure firmware that is currently available to ARM licensees upon request to ARM. Please contact the ARM Landing Team for further details.
+This release introduces optional configurable kernel support for an example implementation of ARM's Power State Co-ordination Interface (PSCI). This support is disabled by default. Using PSCI support requires the use of secure firmware that is currently available to ARM licensees upon request to ARM. Please contact support-sw@arm.com with the subject line "Access to PSCI" to get access to the firmware code.
Scheduler modifications to support big.LITTLE
** sched: Basic global balancing support for HMP: This patch introduces an extra-check at task up-migration to prevent overloading the cpus in the faster hmp_domain while the slower hmp_domain is not fully utilized. The patch also introduces a periodic balance check that can down-migrate tasks if the faster domain is oversubscribed and the slower is under-utilized.
diff --git a/README.textile b/README.textile
index 4282edc..8870b08 100644
--- a/README.textile
+++ b/README.textile
@@ -10,7 +10,7 @@ The TC2 CoreTile is the first example of a big.LITTLE system shipped by ARM and
The release integrates big.LITTLE development work which can be traced in the big.LITTLE MP working group "git repo":http://git.linaro.org/gitweb?p=arm/big.LITTLE/mp.git;a=summary . *Note:* This repository has the following tree: big-LITTLE-MP-master-v16 that has been used for the 13.03 evaluation build. This tree includes the following patches that have been developed and qualified for correctness to enable the ARM Versatile Express V2P-CA15_A7 CoreTile (TC2) to run in full MP mode. This new functionality has been optimised for energy usage at near Cortex-A15 (big) performance. These patches are not currently ready to be submitted to the Linux mainline for integration (upstreaming), since they do not yet work seamlessly with the load-balancer. Work is ongoing to make the load-balancer more big.LITTLE aware, making the changes suitable for integration into the Linux mainline.
-This release introduces optional configurable kernel support for an example implementation of ARM's Power State Co-ordination Interface (PSCI). This support is disabled by default. Using PSCI support requires the use of secure firmware that is currently available to ARM licensees upon request to ARM. Please contact the ARM Landing Team for further details.
+This release introduces optional configurable kernel support for an example implementation of ARM's Power State Co-ordination Interface (PSCI). This support is disabled by default. Using PSCI support requires the use of secure firmware that is currently available to ARM licensees upon request to ARM. Please contact support-sw@arm.com with the subject line "Access to PSCI" to get access to the firmware code.
Scheduler modifications to support big.LITTLE
** sched: Basic global balancing support for HMP: This patch introduces an extra-check at task up-migration to prevent overloading the cpus in the faster hmp_domain while the slower hmp_domain is not fully utilized. The patch also introduces a periodic balance check that can down-migrate tasks if the faster domain is oversubscribed and the slower is under-utilized.