From b55bb4cdcb298c12a316713d6cc7948973c14f9b Mon Sep 17 00:00:00 2001 From: Anup Patel Date: Fri, 13 Feb 2026 11:23:39 +0530 Subject: lib: sbi_irqchip: Support irqchip device targetting subset of harts It is possible to have platform where an irqchip device targets a subset of harts and there are multiple irqchip devices to cover all harts. To support this scenario: 1) Add target_harts hartmask to struct sbi_irqchip_device which represents the set of harts targetted by the irqchip device 2) Call warm_init() and process_hwirqs() callbacks of an irqchip device on a hart only if irqchip device targets that particular hart Signed-off-by: Anup Patel Link: https://lore.kernel.org/r/20260213055342.3124872-6-anup.patel@oss.qualcomm.com Signed-off-by: Anup Patel --- include/sbi/sbi_irqchip.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/sbi/sbi_irqchip.h b/include/sbi/sbi_irqchip.h index cda1e50f..c3ded271 100644 --- a/include/sbi/sbi_irqchip.h +++ b/include/sbi/sbi_irqchip.h @@ -10,6 +10,7 @@ #ifndef __SBI_IRQCHIP_H__ #define __SBI_IRQCHIP_H__ +#include #include #include @@ -20,11 +21,14 @@ struct sbi_irqchip_device { /** Node in the list of irqchip devices */ struct sbi_dlist node; + /** Set of harts targetted by this irqchip */ + struct sbi_hartmask target_harts; + /** Initialize per-hart state for the current hart */ int (*warm_init)(struct sbi_irqchip_device *chip); /** Process hardware interrupts from this irqchip */ - int (*process_hwirqs)(void); + int (*process_hwirqs)(struct sbi_irqchip_device *chip); }; /** @@ -38,7 +42,7 @@ struct sbi_irqchip_device { int sbi_irqchip_process(void); /** Register an irqchip device to receive callbacks */ -void sbi_irqchip_add_device(struct sbi_irqchip_device *chip); +int sbi_irqchip_add_device(struct sbi_irqchip_device *chip); /** Initialize interrupt controllers */ int sbi_irqchip_init(struct sbi_scratch *scratch, bool cold_boot); -- cgit v1.2.3