genirq/matrix: Dynamic bitmap allocation

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A future user of the matrix allocator, does not know the size of the matrix
bitmaps at compile time.

To avoid wasting memory on unnecessary large bitmaps, size the bitmap at
matrix allocation time.

Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240222094006.1030709-11-apatel@ventanamicro.com

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Björn Töpel 2024-02-22 15:09:58 +05:30 • committed by Thomas Gleixner

parent 3c46fc5b55

commit 5b98d210ac

2 changed files with 17 additions and 13 deletions

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2

arch/x86/include/asm/hw_irq.h

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28

kernel/irq/matrix.c

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