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| author | Marc Zyngier | 2018-05-30 18:29:52 +0200 |
|---|---|---|
| committer | Marc Zyngier | 2018-07-16 15:22:19 +0200 |
| commit | a4f9edb29d9c19f9f8dcd2df7ddfe4eb7ad58996 (patch) | |
| tree | 538e0c5c70a2f711aacdcde60afebcfabf6612aa | |
| parent | irqchip/gic-v3-its: Drop chunk allocation compatibility (diff) | |
| download | kernel-qcow2-linux-a4f9edb29d9c19f9f8dcd2df7ddfe4eb7ad58996.tar.gz kernel-qcow2-linux-a4f9edb29d9c19f9f8dcd2df7ddfe4eb7ad58996.tar.xz kernel-qcow2-linux-a4f9edb29d9c19f9f8dcd2df7ddfe4eb7ad58996.zip | |
irqchip/gic-v3: Expose GICD_TYPER in the rdist structure
Instead of exposing the GIC distributor IntID field in the rdist
structure that is passed to the ITS, let's replace it with a
copy of the whole GICD_TYPER register. We are going to need
some of this information at a later time.
No functionnal change.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-its.c | 2 | ||||
| -rw-r--r-- | drivers/irqchip/irq-gic-v3.c | 4 | ||||
| -rw-r--r-- | include/linux/irqchip/arm-gic-v3.h | 2 |
3 files changed, 4 insertions, 4 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 9c5b85577053..efe6d1a6c32e 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -1616,7 +1616,7 @@ static int __init its_alloc_lpi_tables(void) { phys_addr_t paddr; - lpi_id_bits = gic_rdists->id_bits; + lpi_id_bits = GICD_TYPER_ID_BITS(gic_rdists->gicd_typer); gic_rdists->prop_page = its_allocate_prop_table(GFP_NOWAIT); if (!gic_rdists->prop_page) { pr_err("Failed to allocate PROPBASE\n"); diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index 76ea56d779a1..e214181b77b7 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -877,7 +877,7 @@ static struct irq_chip gic_eoimode1_chip = { .flags = IRQCHIP_SET_TYPE_MASKED, }; -#define GIC_ID_NR (1U << gic_data.rdists.id_bits) +#define GIC_ID_NR (1U << GICD_TYPER_ID_BITS(gic_data.rdists.gicd_typer)) static int gic_irq_domain_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw) @@ -1091,7 +1091,7 @@ static int __init gic_init_bases(void __iomem *dist_base, * The GIC only supports up to 1020 interrupt sources (SGI+PPI+SPI) */ typer = readl_relaxed(gic_data.dist_base + GICD_TYPER); - gic_data.rdists.id_bits = GICD_TYPER_ID_BITS(typer); + gic_data.rdists.gicd_typer = typer; gic_irqs = GICD_TYPER_IRQS(typer); if (gic_irqs > 1020) gic_irqs = 1020; diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h index cbb872c1b607..396cd99af02f 100644 --- a/include/linux/irqchip/arm-gic-v3.h +++ b/include/linux/irqchip/arm-gic-v3.h @@ -576,8 +576,8 @@ struct rdists { phys_addr_t phys_base; } __percpu *rdist; struct page *prop_page; - int id_bits; u64 flags; + u32 gicd_typer; bool has_vlpis; bool has_direct_lpi; }; |