minix

5263 commits 2 branches 0 tags 113 MiB

Author	SHA1	Message	Date
Ben Gras	8ea66915f2	kernel: scheduling fix for ARM . make read_tsc_64 use the free-running clock, significantly improving scheduling behaviour Change-Id: Idf6a12f6e26be7fe3b3664c278cae846d8b2a442	2013-02-03 22:49:05 +01:00
Thomas Veerman	db8c1ee9d0	ARM: provide free running clock to replace ccnt The Cycle CouNTer on ARM cannot be used reliably as it wraps around rather quickly and can be altered by user space (on Minix). Furthermore, it's buggy when wrapping and is not implemented at all on the Linaro Beagleboard emulator. This patch programs GPTIMER10 as a free running clock at 1.625 MHz (it doesn't generate interrupts). It's memory mapped into every process, which enables libsys to provide micro_delay(). Change-Id: Iba004c6c62976762fe154ea390d69e518eec1531	2013-01-31 15:19:11 +00:00
Lionel Sambuc	b1c4ba4ab6	ARM updates Due to the ABI we are using we have to use the earm architecture moniker for the build system to behave correctly. This involves then some headers to move around. There is also a few related Makefile updates as well as minor source code corrections.	2013-01-17 10:03:58 +01:00

Author

SHA1

Message

Date

Ben Gras

8ea66915f2

kernel: scheduling fix for ARM

. make read_tsc_64 use the free-running clock, significantly
	  improving scheduling behaviour

Change-Id: Idf6a12f6e26be7fe3b3664c278cae846d8b2a442

2013-02-03 22:49:05 +01:00

Thomas Veerman

db8c1ee9d0

ARM: provide free running clock to replace ccnt

The Cycle CouNTer on ARM cannot be used reliably as it wraps around
rather quickly and can be altered by user space (on Minix). Furthermore,
it's buggy when wrapping and is not implemented at all on the Linaro
Beagleboard emulator.

This patch programs GPTIMER10 as a free running clock at 1.625 MHz (it
doesn't generate interrupts). It's memory mapped into every process,
which enables libsys to provide micro_delay().

Change-Id: Iba004c6c62976762fe154ea390d69e518eec1531

2013-01-31 15:19:11 +00:00

Lionel Sambuc

b1c4ba4ab6

ARM updates

Due to the ABI we are using we have to use the earm architecture
moniker for the build system to behave correctly. This involves
then some headers to move around.

There is also a few related Makefile updates as well as minor
source code corrections.

2013-01-17 10:03:58 +01:00

Renamed from kernel/arch/arm/memory.c (Browse further)

3 commits