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authorJulien Grall <julien.grall@arm.com>2016-04-11 16:32:53 +0100
committerChristoffer Dall <christoffer.dall@linaro.org>2016-05-03 12:54:21 +0200
commitbafa9193d00c7bfff4c4aea0d48cd2b55a6378c2 (patch)
tree6b4ecd614a593e5d5f0f6704ba656ffd46ddefb8 /drivers/irqchip
parentd9b5e41591ca6bc6678e287b5ffe7fac2e07436e (diff)
downloadlinux-bafa9193d00c7bfff4c4aea0d48cd2b55a6378c2.tar.bz2
irqchip/gic-v2: Gather ACPI specific data in a single structure
The ACPI code requires to use global variables in order to collect information from the tables. For now, a single global variable is used, but more will be added in a subsequent patch. To make clear they are ACPI specific, gather all the information in a single structure. Signed-off-by: Julien Grall <julien.grall@arm.com> Acked-by: Christofer Dall <christoffer.dall@linaro.org> Acked-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'drivers/irqchip')
-rw-r--r--drivers/irqchip/irq-gic.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 282344b95ec2..7a73786596cd 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -1245,7 +1245,10 @@ IRQCHIP_DECLARE(pl390, "arm,pl390", gic_of_init);
#endif
#ifdef CONFIG_ACPI
-static phys_addr_t cpu_phy_base __initdata;
+static struct
+{
+ phys_addr_t cpu_phys_base;
+} acpi_data __initdata;
static int __init
gic_acpi_parse_madt_cpu(struct acpi_subtable_header *header,
@@ -1265,10 +1268,10 @@ gic_acpi_parse_madt_cpu(struct acpi_subtable_header *header,
* All CPU interface addresses have to be the same.
*/
gic_cpu_base = processor->base_address;
- if (cpu_base_assigned && gic_cpu_base != cpu_phy_base)
+ if (cpu_base_assigned && gic_cpu_base != acpi_data.cpu_phys_base)
return -EINVAL;
- cpu_phy_base = gic_cpu_base;
+ acpi_data.cpu_phys_base = gic_cpu_base;
cpu_base_assigned = 1;
return 0;
}
@@ -1316,7 +1319,7 @@ static int __init gic_v2_acpi_init(struct acpi_subtable_header *header,
return -EINVAL;
}
- cpu_base = ioremap(cpu_phy_base, ACPI_GIC_CPU_IF_MEM_SIZE);
+ cpu_base = ioremap(acpi_data.cpu_phys_base, ACPI_GIC_CPU_IF_MEM_SIZE);
if (!cpu_base) {
pr_err("Unable to map GICC registers\n");
return -ENOMEM;