improve RISC-V multi core boot - #132
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axel-h
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Nov 13, 2021
axel-h
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- add much more comments
- fix SBI HSM register naming quirk
- Ensure DTB is always passed to primary core boot
- check SBI HSM error when bringing up secondary harts
- Stop wrong boot hart via HSM if possible
- unify stack definitions for all cores
- add multicore helper functions
- Drop variable hsm_exists, pass information as parameter
- Print more log messages
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@axel-h thanks for the changes. I just want to double check if there are any bugs fixed in the PR. |
yyshen
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Dec 2, 2023
| int mutex = 0; | ||
| int core_ready[CONFIG_MAX_NUM_NODES] = { 0 }; | ||
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| static void acquire_multicore_lock(void) |
Contributor
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Given that this is used inside this file only, maybe smp_lock and smp_unlock are shorter. just a suggestion.
yyshen
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Dec 2, 2023
| __atomic_store_n(&mutex, 0, __ATOMIC_RELEASE); | ||
| } | ||
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| static void set_secondary_cores_go(void) |
yyshen
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Dec 2, 2023
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| _start1: /* a0 must hold current hard ID passed by bootloader */ | ||
| /* a1 must hold dtb address passed by bootloader */ | ||
| /*----------------------------------------------------------------------------*/ |
yyshen
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so this basically has no code logic changes? In this case, maybe we should state it in the commit message clearly.
yyshen
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Dec 2, 2023
| } | ||
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| #if CONFIG_MAX_NUM_NODES > 1 | ||
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why are the additional empty lines?
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Signed-off-by: Axel Heider <axelheider@gmx.de>
Signed-off-by: Axel Heider <axelheider@gmx.de>
Signed-off-by: Axel Heider <axelheider@gmx.de>
Signed-off-by: Axel Heider <axelheider@gmx.de>
Signed-off-by: Axel Heider <axelheider@gmx.de>
Use wrapper function to Improve code readability. Signed-off-by: Axel Heider <axelheider@gmx.de>
Signed-off-by: Axel Heider <axelheider@gmx.de>
Signed-off-by: Axel Heider <axelheider@gmx.de>
This also makes the comment about a1 correct again. Signed-off-by: Axel Heider <axelheider@gmx.de>
hart ID and custom argument is passed when starting a secondary hart. Signed-off-by: Axel Heider <axelheider@gmx.de>
Signed-off-by: Axel Heider <axelheider@gmx.de>
Signed-off-by: Axel Heider <axelheider@gmx.de>
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