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x86: arch specific support for remapping HPET MSIs

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x86 arch support for remapping HPET MSI's by associating the HPET timer block
with the interrupt-remapping HW unit and setting up appropriate irq_chip

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Jay Fenlason <fenlason@redhat.com>
LKML-Reference: <20090804190729.630510000@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Suresh Siddha
2009-08-04 12:07:09 -07:00
committed by Thomas Gleixner
parent 20f3097bfe
commit c8bc6f3c80
4 changed files with 47 additions and 11 deletions
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3
arch/x86/kernel/hpet.c
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@@ -33,6 +33,7 @@
* HPET address is set in acpi/boot.c, when an ACPI entry exists
*/
unsigned long hpet_address;
u8 hpet_blockid; /* OS timer block num */
#ifdef CONFIG_PCI_MSI
static unsigned long hpet_num_timers;
#endif
@@ -467,7 +468,7 @@ static int hpet_msi_next_event(unsigned long delta,
static int hpet_setup_msi_irq(unsigned int irq)
{
if (arch_setup_hpet_msi(irq)) {
if (arch_setup_hpet_msi(irq, hpet_blockid)) {
destroy_irq(irq);
return -EINVAL;
}