diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/Kconfig | 16 | ||||
| -rw-r--r-- | src/arch/x86/pirq_routing.c | 12 |
2 files changed, 21 insertions, 7 deletions
diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig index 06aadedae6..631d981e45 100644 --- a/src/arch/x86/Kconfig +++ b/src/arch/x86/Kconfig @@ -329,3 +329,19 @@ config HAVE_CF9_RESET config HAVE_CF9_RESET_PREPARE bool depends on HAVE_CF9_RESET + +config PIRQ_ROUTE + bool + default n + +config MAX_PIRQ_LINKS + int + default 4 + depends on PIRQ_ROUTE + help + This variable specifies the number of PIRQ interrupt links which are + routable. On most chipsets, this is 4, INTA through INTD. Some + chipsets offer more than four links, commonly up to INTH. They may + also have a separate link for ATA or IOAPIC interrupts. When the PIRQ + table specifies links greater than 4, pirq_route_irqs will not + function properly, unless this variable is correctly set. diff --git a/src/arch/x86/pirq_routing.c b/src/arch/x86/pirq_routing.c index 15d7411b3f..5f80c9d56c 100644 --- a/src/arch/x86/pirq_routing.c +++ b/src/arch/x86/pirq_routing.c @@ -20,10 +20,6 @@ #include <string.h> #include <device/pci.h> -void __weak pirq_assign_irqs(const unsigned char pirq[CONFIG_MAX_PIRQ_LINKS]) -{ -} - static void check_pirq_routing_table(struct irq_routing_table *rt) { uint8_t *addr = (uint8_t *)rt; @@ -146,8 +142,11 @@ static void pirq_route_irqs(unsigned long addr) /* Set PCI IRQs. */ for (i = 0; i < num_entries; i++) { + u8 bus = pirq_tbl->slots[i].bus; + u8 devfn = pirq_tbl->slots[i].devfn; + printk(BIOS_DEBUG, "PIRQ Entry %d Dev/Fn: %X Slot: %d\n", i, - pirq_tbl->slots[i].devfn >> 3, pirq_tbl->slots[i].slot); + devfn >> 3, pirq_tbl->slots[i].slot); for (intx = 0; intx < MAX_INTX_ENTRIES; intx++) { @@ -178,8 +177,7 @@ static void pirq_route_irqs(unsigned long addr) } /* Bus, device, slots IRQs for {A,B,C,D}. */ - pci_assign_irqs(pirq_tbl->slots[i].bus, - pirq_tbl->slots[i].devfn >> 3, irq_slot); + pci_assign_irqs(bus, devfn >> 3, irq_slot); } for (i = 0; i < CONFIG_MAX_PIRQ_LINKS; i++) |