diff options
| author | Jiang Liu <jiang.liu@linux.intel.com> | 2014-06-09 16:19:48 +0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2014-06-21 23:05:42 +0200 |
| commit | 95d76acc7518d566df18d67c1343bb375b78d1f3 (patch) | |
| tree | d0e826c07402d4df28042792951b4b647048c5a1 /arch/x86/kernel/acpi/boot.c | |
| parent | 6532ce994c304835f3bfc8479acce9d102cd8b5b (diff) | |
x86, irq: Count legacy IRQs by legacy_pic->nr_legacy_irqs instead of NR_IRQS_LEGACY
Some platforms, such as Intel MID and mshypv, do not support legacy
interrupt controllers. So count legacy IRQs by legacy_pic->nr_legacy_irqs
instead of hard-coded NR_IRQS_LEGACY.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: xen-devel@lists.xenproject.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Tony Lindgren <tony@atomide.com>
Acked-by: David Vrabel <david.vrabel@citrix.com>
Link: http://lkml.kernel.org/r/1402302011-23642-20-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/acpi/boot.c')
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index f3bafcd32b98..b12976590a72 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -43,6 +43,7 @@ #include <asm/io.h> #include <asm/mpspec.h> #include <asm/smp.h> +#include <asm/i8259.h> #include "sleep.h" /* To include x86_acpi_suspend_lowlevel */ static int __initdata acpi_force = 0; @@ -101,10 +102,10 @@ static u32 isa_irq_to_gsi[NR_IRQS_LEGACY] __read_mostly = { static unsigned int gsi_to_irq(unsigned int gsi) { - unsigned int irq = gsi + NR_IRQS_LEGACY; + unsigned int irq = gsi + nr_legacy_irqs(); unsigned int i; - for (i = 0; i < NR_IRQS_LEGACY; i++) { + for (i = 0; i < nr_legacy_irqs(); i++) { if (isa_irq_to_gsi[i] == gsi) { return i; } @@ -114,7 +115,7 @@ static unsigned int gsi_to_irq(unsigned int gsi) * except on truly weird platforms that have * non isa irqs in the first 16 gsis. */ - if (gsi >= NR_IRQS_LEGACY) + if (gsi >= nr_legacy_irqs()) irq = gsi; else irq = gsi_top + gsi; @@ -371,7 +372,7 @@ static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, * otherwise there will be more than one entry with the same GSI * and acpi_isa_irq_to_gsi() may give wrong result. */ - if (gsi < NR_IRQS_LEGACY && isa_irq_to_gsi[gsi] == gsi) + if (gsi < nr_legacy_irqs() && isa_irq_to_gsi[gsi] == gsi) isa_irq_to_gsi[gsi] = ACPI_INVALID_GSI; isa_irq_to_gsi[bus_irq] = gsi; } @@ -628,7 +629,7 @@ EXPORT_SYMBOL_GPL(acpi_gsi_to_irq); int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi) { - if (isa_irq < NR_IRQS_LEGACY && + if (isa_irq < nr_legacy_irqs() && isa_irq_to_gsi[isa_irq] != ACPI_INVALID_GSI) { *gsi = isa_irq_to_gsi[isa_irq]; return 0; @@ -1017,7 +1018,7 @@ static void __init mp_config_acpi_legacy_irqs(void) * Use the default configuration for the IRQs 0-15. Unless * overridden by (MADT) interrupt source override entries. */ - for (i = 0; i < NR_IRQS_LEGACY; i++) { + for (i = 0; i < nr_legacy_irqs(); i++) { int ioapic, pin; unsigned int dstapic; int idx; |