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List: acpi4linux
Subject: [ACPI] [Patch] IRQ parameters patch #2
From: Andrew de Quincey <adq_dvb () lidskialf ! net>
Date: 2003-07-14 23:31:25
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This patch is for 2.5.75. It adds some more fixes for setting correct IRQ
parameters.
["linux-2.5.75-acpi-irqparams-2.patch" (text/x-diff)]
diff -Naurb linux-2.5.74.orig/arch/i386/kernel/io_apic.c linux-2.5.74/arch/i386/kernel/io_apic.c
--- linux-2.5.74.orig/arch/i386/kernel/io_apic.c 2003-07-02 21:45:05.000000000 +0100
+++ linux-2.5.74/arch/i386/kernel/io_apic.c 2003-07-13 21:57:58.000000000 +0100
@@ -2313,7 +2313,7 @@
}
-int io_apic_set_pci_routing (int ioapic, int pin, int irq)
+int io_apic_set_pci_routing (int ioapic, int pin, int irq, int edge_level, int active_high_low)
{
struct IO_APIC_route_entry entry;
unsigned long flags;
@@ -2336,18 +2336,22 @@
entry.dest_mode = INT_DEST_MODE;
entry.dest.logical.logical_dest = cpu_mask_to_apicid(TARGET_CPUS);
entry.mask = 1; /* Disabled (masked) */
- entry.trigger = 1; /* Level sensitive */
- entry.polarity = 1; /* Low active */
+ entry.trigger = edge_level;
+ entry.polarity = active_high_low;
add_pin_to_irq(irq, ioapic, pin);
entry.vector = assign_irq_vector(irq);
printk(KERN_DEBUG "IOAPIC[%d]: Set PCI routing entry (%d-%d -> 0x%x -> "
- "IRQ %d)\n", ioapic,
- mp_ioapics[ioapic].mpc_apicid, pin, entry.vector, irq);
+ "IRQ %d Mode:%i Active:%i)\n", ioapic,
+ mp_ioapics[ioapic].mpc_apicid, pin, entry.vector, irq, edge_level, active_high_low);
+ if (edge_level) {
irq_desc[irq].handler = &ioapic_level_irq_type;
+ } else {
+ irq_desc[irq].handler = &ioapic_edge_irq_type;
+ }
set_intr_gate(entry.vector, interrupt[irq]);
diff -Naurb linux-2.5.74.orig/arch/i386/kernel/mpparse.c linux-2.5.74/arch/i386/kernel/mpparse.c
--- linux-2.5.74.orig/arch/i386/kernel/mpparse.c 2003-07-02 21:44:31.000000000 +0100
+++ linux-2.5.74/arch/i386/kernel/mpparse.c 2003-07-13 22:02:46.000000000 +0100
@@ -1065,7 +1065,7 @@
ioapic_pin = irq - mp_ioapic_routing[ioapic].irq_start;
- io_apic_set_pci_routing(ioapic, ioapic_pin, irq);
+ io_apic_set_pci_routing(ioapic, ioapic_pin, irq, 1, 1); // Active low, level triggered
}
#endif /*CONFIG_ACPI_HT_ONLY*/
@@ -1080,6 +1080,8 @@
int ioapic_pin = 0;
int irq = 0;
int idx, bit = 0;
+ int edge_level = 0;
+ int active_high_low = 0;
/*
* Parsing through the PCI Interrupt Routing Table (PRT) and program
@@ -1090,7 +1092,7 @@
/* Need to get irq for dynamic entry */
if (entry->link.handle) {
- irq = acpi_pci_link_get_irq(entry->link.handle, entry->link.index);
+ irq = acpi_pci_link_get_irq(entry->link.handle, entry->link.index, &edge_level, &active_high_low);
if (!irq)
continue;
}
@@ -1130,7 +1132,7 @@
mp_ioapic_routing[ioapic].pin_programmed[idx] |= (1<<bit);
- if (!io_apic_set_pci_routing(ioapic, ioapic_pin, irq))
+ if (!io_apic_set_pci_routing(ioapic, ioapic_pin, irq, edge_level, active_high_low))
entry->irq = irq;
printk(KERN_DEBUG "%02x:%02x:%02x[%c] -> %d-%d -> IRQ %d\n",
diff -Naurb linux-2.5.74.orig/drivers/acpi/pci_irq.c linux-2.5.74/drivers/acpi/pci_irq.c
--- linux-2.5.74.orig/drivers/acpi/pci_irq.c 2003-07-02 21:46:52.000000000 +0100
+++ linux-2.5.74/drivers/acpi/pci_irq.c 2003-07-13 21:50:53.000000000 +0100
@@ -249,7 +249,7 @@
}
if (!entry->irq && entry->link.handle) {
- entry->irq = acpi_pci_link_get_irq(entry->link.handle, entry->link.index);
+ entry->irq = acpi_pci_link_get_irq(entry->link.handle, entry->link.index, NULL, NULL);
if (!entry->irq) {
ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid IRQ link routing entry\n"));
return_VALUE(0);
diff -Naurb linux-2.5.74.orig/include/acpi/acpi_drivers.h linux-2.5.74/include/acpi/acpi_drivers.h
--- linux-2.5.74.orig/include/acpi/acpi_drivers.h 2003-07-02 21:51:42.000000000 +0100
+++ linux-2.5.74/include/acpi/acpi_drivers.h 2003-07-13 21:27:40.000000000 +0100
@@ -60,7 +60,7 @@
/* ACPI PCI Interrupt Link (pci_link.c) */
int acpi_pci_link_check (void);
-int acpi_pci_link_get_irq (acpi_handle handle, int index);
+int acpi_pci_link_get_irq (acpi_handle handle, int index, int* edge_level, int* active_high_low);
/* ACPI PCI Interrupt Routing (pci_irq.c) */
diff -Naurb linux-2.5.74.orig/include/asm-i386/io_apic.h linux-2.5.74/include/asm-i386/io_apic.h
--- linux-2.5.74.orig/include/asm-i386/io_apic.h 2003-07-02 21:50:49.000000000 +0100
+++ linux-2.5.74/include/asm-i386/io_apic.h 2003-07-13 21:35:32.000000000 +0100
@@ -170,7 +170,7 @@
extern int io_apic_get_unique_id (int ioapic, int apic_id);
extern int io_apic_get_version (int ioapic);
extern int io_apic_get_redir_entries (int ioapic);
-extern int io_apic_set_pci_routing (int ioapic, int pin, int irq);
+extern int io_apic_set_pci_routing (int ioapic, int pin, int irq, int edge_level, int active_high_low);
#endif /*CONFIG_ACPI_BOOT*/
#else /* !CONFIG_X86_IO_APIC */
--- linux-2.5.75.orig/drivers/acpi/pci_link.c 2003-07-10 21:04:58.000000000 +0100
+++ linux-2.5.75/drivers/acpi/pci_link.c 2003-07-14 01:47:08.000000000 +0100
@@ -69,6 +69,8 @@
struct acpi_pci_link_irq {
u8 active; /* Current IRQ */
+ u8 edge_level; /* All IRQs */
+ u8 active_high_low; /* All IRQs */
u8 possible_count;
u8 possible[ACPI_PCI_LINK_MAX_POSSIBLE];
};
@@ -118,6 +120,8 @@
link->irq.possible[i] = p->interrupts[i];
link->irq.possible_count++;
}
+ link->irq.edge_level = p->edge_level;
+ link->irq.active_high_low = p->active_high_low;
break;
}
case ACPI_RSTYPE_EXT_IRQ:
@@ -136,6 +140,8 @@
link->irq.possible[i] = p->interrupts[i];
link->irq.possible_count++;
}
+ link->irq.edge_level = p->edge_level;
+ link->irq.active_high_low = p->active_high_low;
break;
}
default:
@@ -310,12 +316,14 @@
memset(&resource, 0, sizeof(resource));
- /* NOTE: PCI interrupts are always level / active_low / shared. */
+ /* NOTE: PCI interrupts are always level / active_low / shared. But not all
+ interrupts > 15 are PCI interrupts. Rely on the ACPI IRQ definition for
+ parameters */
if (irq <= 15) {
resource.res.id = ACPI_RSTYPE_IRQ;
resource.res.length = sizeof(struct acpi_resource);
- resource.res.data.irq.edge_level = ACPI_LEVEL_SENSITIVE;
- resource.res.data.irq.active_high_low = ACPI_ACTIVE_LOW;
+ resource.res.data.irq.edge_level = link->irq.edge_level;
+ resource.res.data.irq.active_high_low = link->irq.active_high_low;
resource.res.data.irq.shared_exclusive = ACPI_SHARED;
resource.res.data.irq.number_of_interrupts = 1;
resource.res.data.irq.interrupts[0] = irq;
@@ -324,8 +332,8 @@
resource.res.id = ACPI_RSTYPE_EXT_IRQ;
resource.res.length = sizeof(struct acpi_resource);
resource.res.data.extended_irq.producer_consumer = ACPI_CONSUMER;
- resource.res.data.extended_irq.edge_level = ACPI_LEVEL_SENSITIVE;
- resource.res.data.extended_irq.active_high_low = ACPI_ACTIVE_LOW;
+ resource.res.data.extended_irq.edge_level = link->irq.edge_level;
+ resource.res.data.extended_irq.active_high_low = link->irq.active_high_low;
resource.res.data.extended_irq.shared_exclusive = ACPI_SHARED;
resource.res.data.extended_irq.number_of_interrupts = 1;
resource.res.data.extended_irq.interrupts[0] = irq;
@@ -472,7 +480,9 @@
int
acpi_pci_link_get_irq (
acpi_handle handle,
- int index)
+ int index,
+ int* edge_level,
+ int* active_high_low)
{
int result = 0;
struct acpi_device *device = NULL;
@@ -503,6 +513,8 @@
return_VALUE(0);
}
+ if (edge_level) *edge_level = link->irq.edge_level;
+ if (active_high_low) *active_high_low = link->irq.active_high_low;
return_VALUE(link->irq.active);
}
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