diff options
| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2018-01-02 11:25:29 +0000 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2018-01-02 16:43:12 +0000 |
| commit | c08ec7da75f393c0dbaba9455f4f6b2a5e709355 (patch) | |
| tree | dce577d01dcb444c846bcb70904f55c723e43aaa /drivers/irqchip/irq-gic-v3.c | |
| parent | 29198e3844caaaacb0e21eff634c5f1cfd7f89be (diff) | |
| download | linux-c08ec7da75f393c0dbaba9455f4f6b2a5e709355.tar.bz2 | |
irqchip: gic-v3: Use of_cpu_node_to_id helper
Use the new generic helper of_cpu_node_to_id() instead
of using our own version to map a device node to logical CPU
number.
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/irqchip/irq-gic-v3.c')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3.c | 29 |
1 files changed, 2 insertions, 27 deletions
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index b56c3e23f0af..9a7a15049903 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -1070,31 +1070,6 @@ static int __init gic_validate_dist_version(void __iomem *dist_base) return 0; } -static int get_cpu_number(struct device_node *dn) -{ - const __be32 *cell; - u64 hwid; - int cpu; - - cell = of_get_property(dn, "reg", NULL); - if (!cell) - return -1; - - hwid = of_read_number(cell, of_n_addr_cells(dn)); - - /* - * Non affinity bits must be set to 0 in the DT - */ - if (hwid & ~MPIDR_HWID_BITMASK) - return -1; - - for_each_possible_cpu(cpu) - if (cpu_logical_map(cpu) == hwid) - return cpu; - - return -1; -} - /* Create all possible partitions at boot time */ static void __init gic_populate_ppi_partitions(struct device_node *gic_node) { @@ -1145,8 +1120,8 @@ static void __init gic_populate_ppi_partitions(struct device_node *gic_node) if (WARN_ON(!cpu_node)) continue; - cpu = get_cpu_number(cpu_node); - if (WARN_ON(cpu == -1)) + cpu = of_cpu_node_to_id(cpu_node); + if (WARN_ON(cpu < 0)) continue; pr_cont("%pOF[%d] ", cpu_node, cpu); |