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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2022/03/03 15:58:59 UTC
[GitHub] [incubator-nuttx] minabeoki opened a new pull request #5678: imx6: fix fpu compile option
minabeoki opened a new pull request #5678:
URL: https://github.com/apache/incubator-nuttx/pull/5678
## Summary
- imx6 fpu is vfpv3
- imx6 fpu has 32 registers (CONFIG_ARM_HAVE_FPU_D32=y)
- With this fix, "getprime" now succeeds by gcc-10.3.1.
In the following page, there is "VFPv3" in the block diagram.
https://www.nxp.com/products/processors-and-microcontrollers/arm-processors/i-mx-applications-processors/i-mx-6-processors/i-mx-6quad-processors-high-performance-3d-graphics-hd-video-arm-cortex-a9-core:i.MX6Q
The following statements can be found in the data sheet.
> NEON register file with 32x64-bit general-purpose registers
## Impact
- imx6
## Testing
- getprime on sabre-6quad:knsh (QEMU)
```
% arm-none-eabi-gcc -v
gcc version 10.3.1 20210824 (release) (GNU Arm Embedded Toolchain 10.3-2021.10)
% qemu-system-arm -semihosting -M sabrelite -m 1024 -smp 4 -nographic -kernel ./nuttx
ABDGHIJKNOPQ
NuttShell (NSH) NuttX-10.2.0
nsh> /system/bin/hello
Hello, World!!
nsh> /system/bin/getprime
Set thread priority to 10
Set thread policy to SCHED_RR
Start thread #0
thread #0 started, looking for primes < 10000, doing 10 run(s)
thread #0 finished, found 1230 primes, last one was 9973
Done
/system/bin/getprime took 1310 msec
nsh>
```
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[GitHub] [incubator-nuttx] pkarashchenko commented on pull request #5678: imx6: fix fpu compile option
Posted by GitBox <gi...@apache.org>.
pkarashchenko commented on pull request #5678:
URL: https://github.com/apache/incubator-nuttx/pull/5678#issuecomment-1058246071
Please participate in a review and make sure that all needed flags are selected compiler n Kconfig for imx6
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[GitHub] [incubator-nuttx] pkarashchenko commented on pull request #5678: imx6: fix fpu compile option
Posted by GitBox <gi...@apache.org>.
pkarashchenko commented on pull request #5678:
URL: https://github.com/apache/incubator-nuttx/pull/5678#issuecomment-1058245203
Yes. I think we should follow-up with a more generic change.
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[GitHub] [incubator-nuttx] minabeoki closed pull request #5678: imx6: fix fpu compile option
Posted by GitBox <gi...@apache.org>.
minabeoki closed pull request #5678:
URL: https://github.com/apache/incubator-nuttx/pull/5678
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[GitHub] [incubator-nuttx] pkarashchenko commented on pull request #5678: imx6: fix fpu compile option
Posted by GitBox <gi...@apache.org>.
pkarashchenko commented on pull request #5678:
URL: https://github.com/apache/incubator-nuttx/pull/5678#issuecomment-1058222933
I think it goes in conflict with https://github.com/apache/incubator-nuttx/pull/5662
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[GitHub] [incubator-nuttx] minabeoki commented on pull request #5678: imx6: fix fpu compile option
Posted by GitBox <gi...@apache.org>.
minabeoki commented on pull request #5678:
URL: https://github.com/apache/incubator-nuttx/pull/5678#issuecomment-1058238827
@pkarashchenko
Hmm... Should I close this PR once?
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[GitHub] [incubator-nuttx] minabeoki commented on pull request #5678: imx6: fix fpu compile option
Posted by GitBox <gi...@apache.org>.
minabeoki commented on pull request #5678:
URL: https://github.com/apache/incubator-nuttx/pull/5678#issuecomment-1058249955
ok, I check #5662
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