X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Fx86%2Finclude%2Fasm%2Fmpspec.h;h=ad8eba947b9a42aca24499cfad3693030d5d2223;hb=b24f5c4f27bf6a473fc9a3937a2bbf6ddf0fb104;hp=efa9231f922f96041928060b7d90087871ff19e7;hpb=f448c5d3200372fa73f340144d013fdecf4e2f1f;p=u-boot

diff --git a/arch/x86/include/asm/mpspec.h b/arch/x86/include/asm/mpspec.h
index efa9231f92..ad8eba947b 100644
--- a/arch/x86/include/asm/mpspec.h
+++ b/arch/x86/include/asm/mpspec.h
@@ -431,6 +431,23 @@ void mp_write_compat_address_space(struct mp_config_table *mc, int busid,
  */
 u32 mptable_finalize(struct mp_config_table *mc);
 
+/**
+ * mp_determine_pci_dstirq() - Determine PCI device's int pin on the I/O APIC
+ *
+ * This determines a PCI device's interrupt pin number on the I/O APIC.
+ *
+ * This can be implemented by platform codes to handle specifal cases, which
+ * do not conform to the normal chipset/board design where PIRQ[A-H] are mapped
+ * directly to I/O APIC INTPIN#16-23.
+ *
+ * @bus:	bus number of the pci device
+ * @dev:	device number of the pci device
+ * @func:	function number of the pci device
+ * @pirq:	PIRQ number the PCI device's interrupt pin is routed to
+ * @return:	interrupt pin number on the I/O APIC
+ */
+int mp_determine_pci_dstirq(int bus, int dev, int func, int pirq);
+
 /**
  * write_mp_table() - Write MP table
  *