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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-21 05:38:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-21 05:38:09 +0000 |
| commit | bb26c5b2b89d932f617fa415a715b2bb259a42bc (patch) | |
| tree | 58c44da24c7a1fb78dda1c0b698510c6f8640981 /drivers/irqchip/irq-mbigen.c | |
| parent | Adding upstream version 6.10.4. (diff) | |
| download | linux-bb26c5b2b89d932f617fa415a715b2bb259a42bc.tar.xz linux-bb26c5b2b89d932f617fa415a715b2bb259a42bc.zip | |
Adding upstream version 6.10.6.upstream/6.10.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/irqchip/irq-mbigen.c')
| -rw-r--r-- | drivers/irqchip/irq-mbigen.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c index 58881d3139..244a8d489c 100644 --- a/drivers/irqchip/irq-mbigen.c +++ b/drivers/irqchip/irq-mbigen.c @@ -64,6 +64,20 @@ struct mbigen_device { void __iomem *base; }; +static inline unsigned int get_mbigen_node_offset(unsigned int nid) +{ + unsigned int offset = nid * MBIGEN_NODE_OFFSET; + + /* + * To avoid touched clear register in unexpected way, we need to directly + * skip clear register when access to more than 10 mbigen nodes. + */ + if (nid >= (REG_MBIGEN_CLEAR_OFFSET / MBIGEN_NODE_OFFSET)) + offset += MBIGEN_NODE_OFFSET; + + return offset; +} + static inline unsigned int get_mbigen_vec_reg(irq_hw_number_t hwirq) { unsigned int nid, pin; @@ -72,8 +86,7 @@ static inline unsigned int get_mbigen_vec_reg(irq_hw_number_t hwirq) nid = hwirq / IRQS_PER_MBIGEN_NODE + 1; pin = hwirq % IRQS_PER_MBIGEN_NODE; - return pin * 4 + nid * MBIGEN_NODE_OFFSET - + REG_MBIGEN_VEC_OFFSET; + return pin * 4 + get_mbigen_node_offset(nid) + REG_MBIGEN_VEC_OFFSET; } static inline void get_mbigen_type_reg(irq_hw_number_t hwirq, @@ -88,8 +101,7 @@ static inline void get_mbigen_type_reg(irq_hw_number_t hwirq, *mask = 1 << (irq_ofst % 32); ofst = irq_ofst / 32 * 4; - *addr = ofst + nid * MBIGEN_NODE_OFFSET - + REG_MBIGEN_TYPE_OFFSET; + *addr = ofst + get_mbigen_node_offset(nid) + REG_MBIGEN_TYPE_OFFSET; } static inline void get_mbigen_clear_reg(irq_hw_number_t hwirq, |