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lib: make SBI_HARTMASK_MAX_BITS customizable, default 256

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Linux has raised the default number of 64bit CPUs to 256 in commit
0fa749771993 ("riscv: Raise default NR_CPUS for 64BIT to 256").
OpenSBI should use a matching value for SBI_HARTMASK_MAX_BITS.

Introduce configuration variable CONFIG_HARTMASK_MAX_BITS with
range 32-512 and default 256.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260706160544.697409-1-heinrich.schuchardt@canonical.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Heinrich Schuchardt
2026-08-20 17:57:19 +05:30
committed by Anup Patel
parent c5e90d4286
commit 3876e7574d
2 changed files with 13 additions and 0 deletions
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include/sbi/sbi_hartmask.h
+4
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@@ -20,7 +20,11 @@
* also represents the maximum number of HART ids generic OpenSBI
* can handle.
*/
#ifdef CONFIG_HARTMASK_MAX_BITS
#define SBI_HARTMASK_MAX_BITS CONFIG_HARTMASK_MAX_BITS
#else
#define SBI_HARTMASK_MAX_BITS 128
#endif
/** Representation of hartmask */
struct sbi_hartmask {