arch/risc-v: decouple Per-CPU scratch with ARCH_USE_S_MODE #12220
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In some special chipsets, multiple CPUs may be bundled in one hardware thread cluster, which results in hartid and cpuindex not being exactly the same. The new option will decouple Scratch-based Per-CPU storage with S-Mode to distinguish the real cpu index. Signed-off-by: chao an <anchao@lixiang.com>
acassis
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Apr 25, 2024
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@anchao Did you test the configurations? |
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@masayuki2009 Sorry for the regression, my local code base is a bit old and differences with the mainline. I submitted a pull request to resolve this issue, thank you. #12236 |
pussuw
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Aug 1, 2024
Fixes regression from apache#12220 Error: chip/k230_start.c:80:13: error: 'k230_copy_init_data' defined but not used [-Werror=unused-function] 80 | static void k230_copy_init_data(void) | ^~~~~~~~~~~~~~~~~~~
xiaoxiang781216
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Aug 1, 2024
Fixes regression from #12220 Error: chip/k230_start.c:80:13: error: 'k230_copy_init_data' defined but not used [-Werror=unused-function] 80 | static void k230_copy_init_data(void) | ^~~~~~~~~~~~~~~~~~~
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Summary
arch/risc-v: decouple Per-CPU scratch with ARCH_USE_S_MODE
In some special chipsets, multiple CPUs may be bundled in one hardware thread cluster, which results in hartid and cpuindex not being exactly the same. The new option will decouple Scratch-based Per-CPU storage with S-Mode to distinguish the real cpu index.
Impact
N/A
Testing
rv-virt/smp64