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| author | Anup Patel <anup.patel@oss.qualcomm.com> | 2026-02-13 11:23:39 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2026-03-22 10:53:33 +0530 |
| commit | b55bb4cdcb298c12a316713d6cc7948973c14f9b (patch) | |
| tree | c6ff86c0798e3ed42ba15c0e5f033ca529b3853b /lib/utils | |
| parent | 5a300b32d546d226e55361e47d07b1c9171f07c8 (diff) | |
| download | opensbi-b55bb4cdcb298c12a316713d6cc7948973c14f9b.tar.gz opensbi-b55bb4cdcb298c12a316713d6cc7948973c14f9b.tar.bz2 opensbi-b55bb4cdcb298c12a316713d6cc7948973c14f9b.zip | |
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 <anup.patel@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260213055342.3124872-6-anup.patel@oss.qualcomm.com
Signed-off-by: Anup Patel <anup@brainfault.org>
Diffstat (limited to 'lib/utils')
| -rw-r--r-- | lib/utils/irqchip/aplic.c | 12 | ||||
| -rw-r--r-- | lib/utils/irqchip/imsic.c | 7 | ||||
| -rw-r--r-- | lib/utils/irqchip/plic.c | 5 |
3 files changed, 18 insertions, 6 deletions
diff --git a/lib/utils/irqchip/aplic.c b/lib/utils/irqchip/aplic.c index 8d0db168..ea5cb7c4 100644 --- a/lib/utils/irqchip/aplic.c +++ b/lib/utils/irqchip/aplic.c @@ -297,8 +297,18 @@ int aplic_cold_irqchip_init(struct aplic_data *aplic) return rc; } + if (aplic->num_idc) { + for (i = 0; i < aplic->num_idc; i++) + sbi_hartmask_set_hartindex(aplic->idc_map[i], + &aplic->irqchip.target_harts); + } else { + sbi_hartmask_set_all(&aplic->irqchip.target_harts); + } + /* Register irqchip device */ - sbi_irqchip_add_device(&aplic->irqchip); + rc = sbi_irqchip_add_device(&aplic->irqchip); + if (rc) + return rc; /* Attach to the aplic list */ sbi_list_add_tail(&aplic->node, &aplic_list); diff --git a/lib/utils/irqchip/imsic.c b/lib/utils/irqchip/imsic.c index 0e9917da..5ec9dff4 100644 --- a/lib/utils/irqchip/imsic.c +++ b/lib/utils/irqchip/imsic.c @@ -147,7 +147,7 @@ int imsic_get_target_file(u32 hartindex) return imsic_get_hart_file(scratch); } -static int imsic_process_hwirqs(void) +static int imsic_process_hwirqs(struct sbi_irqchip_device *chip) { ulong mirq; @@ -391,7 +391,10 @@ int imsic_cold_irqchip_init(struct imsic_data *imsic) } /* Register irqchip device */ - sbi_irqchip_add_device(&imsic_device); + sbi_hartmask_set_all(&imsic_device.target_harts); + rc = sbi_irqchip_add_device(&imsic_device); + if (rc) + return rc; /* Register IPI device */ sbi_ipi_add_device(&imsic_ipi_device); diff --git a/lib/utils/irqchip/plic.c b/lib/utils/irqchip/plic.c index 7989a962..25cc2787 100644 --- a/lib/utils/irqchip/plic.c +++ b/lib/utils/irqchip/plic.c @@ -276,11 +276,10 @@ int plic_cold_irqchip_init(struct plic_data *plic) continue; plic_set_hart_data_ptr(sbi_hartindex_to_scratch(i), plic); + sbi_hartmask_set_hartindex(i, &plic->irqchip.target_harts); } /* Register irqchip device */ plic->irqchip.warm_init = plic_warm_irqchip_init; - sbi_irqchip_add_device(&plic->irqchip); - - return 0; + return sbi_irqchip_add_device(&plic->irqchip); } |