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lib: sbi_domain: Re-work boot-time assignment of HARTs to non-ROOT domains

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Assign a non-ROOT domain to a HART on first come first serve basis if the
HART is listed as a possible HART of the non-ROOT domain. If no non-ROOT
domain list a HART as possible HART then the HART is assigned to the ROOT
domain.

This allows us to drop the OpenSBI specific DT property from each CPU DT
node (aka "opensbi-domain" Dt property).

Signed-off-by: Anup Patel <anup.patel@oss.qualcomm.com>
Reviewed-by: Pawandeep Oza <pawandeep.oza@oss.qualcomm.com>
Tested-by: Pawandeep Oza <pawandeep.oza@oss.qualcomm.com>
Reviewed-by: Yu-Chien Peter Lin <peter.lin@sifive.com>
Link: https://lore.kernel.org/r/20260905131748.922920-3-anup.patel@oss.qualcomm.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Anup Patel
2026-09-16 09:21:21 +05:30
committed by Anup Patel
parent 6dc5a896b1
commit 71faf5a307
5 changed files with 42 additions and 142 deletions
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include/sbi/sbi_domain.h
+1 -3
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@@ -328,12 +328,10 @@ void sbi_domain_dump_all(const char *suffix);
/**
* Register a new domain
* @param dom pointer to domain
* @param assign_mask pointer to HART mask of HARTs assigned to the domain
*
* @return 0 on success and negative error code on failure
*/
int sbi_domain_register(struct sbi_domain *dom,
const struct sbi_hartmask *assign_mask);
int sbi_domain_register(struct sbi_domain *dom);
/**
* Add a memory range with its flags to the root domain