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Improve imx6 smp stability #325

Merged
merged 4 commits into from
Feb 20, 2020
Merged

Improve imx6 smp stability #325

merged 4 commits into from
Feb 20, 2020

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masayuki2009
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Summary

  • This PR improves i.mx6 SMP stability by changing SMP related logic to be same as armv7-m SMP (such as LC823450 and CXD56XX)
  • With this change, ostest passed on QEMU (4cores enabled)

Impact

  • This PR affects Cortex-A SMP and i.mx6 architectures

Limitations / TODO

Testing

  • I tested this PR with both sabre-6quad:smp and sabre-6quad:nsh (QEMU only)

@masayuki2009
arch: armv7-a: Apply armv7-m SMP related logic to armv7-a
a61a15f 
Signed-off-by: Masayuki Ishikawa <[email protected]>
@masayuki2009
arch: arm: Select ARCH_GLOBAL_IRQDISABLE for iMX6
afb869b 
NOTE: SMP related behaviour will be same as armv7-m SMP

Signed-off-by: Masayuki Ishikawa <[email protected]>
@masayuki2009
arch: imx6: Add imx_idle.c
e0fdadd 
Signed-off-by: Masayuki Ishikawa <[email protected]>
@masayuki2009
boards: sabre-6quad: Update defconfig for smp
fac6db3 
Enable optimization and generate debug symbols.
Enable scheduler instrumentation and spinlock irq.
Add applications such as hello, ostest and taskset.

Signed-off-by: Masayuki Ishikawa <[email protected]>
@masayuki2009 masayuki2009 mentioned this pull request Feb 20, 2020
Closed
@xiaoxiang781216 xiaoxiang781216 linked an issue Feb 20, 2020 that may be closed by this pull request
SMP for Cortex-A MPcore is unstable #207
Closed
@patacongo patacongo merged commit 28ec6ca into apache:master Feb 20, 2020
@masayuki2009 masayuki2009 deleted the fix_imx6_smp branch March 20, 2020 01:07
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Successfully merging this pull request may close these issues.

SMP for Cortex-A MPcore is unstable
2 participants
@masayuki2009 @patacongo