Attachment 93835 Details for Bug 100499 – ACPI patch patch for VT86/Award PCI interrupts

[patch] ACPI patch patch for VT86/Award PCI interrupts

pci_link-severn.patch (text/plain), 12.21 KB, created by Intel Linux ACPI folks on 2003-08-21 22:12:14 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Intel Linux ACPI folks

Created: 2003-08-21 22:12:14 UTC

Size: 12.21 KB

patch

obsolete

>diff -ur /build/orig/linux-2.4.21-20.1.2024.2.1.nptl/arch/i386/kernel/io_apic.c linux-2.4.21-20.1.2024.2.1.nptl/arch/i386/kernel/io_apic.c
>--- /build/orig/linux-2.4.21-20.1.2024.2.1.nptl/arch/i386/kernel/io_apic.c	2003-07-11 02:55:37.000000000 -0700
>+++ linux-2.4.21-20.1.2024.2.1.nptl/arch/i386/kernel/io_apic.c	2003-08-21 11:01:17.000000000 -0700
>@@ -1897,7 +1897,7 @@
> }
> 
> 
>-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;
>@@ -1919,19 +1919,23 @@
> 	entry.delivery_mode = dest_LowestPrio;
> 	entry.dest_mode = INT_DELIVERY_MODE;
> 	entry.dest.logical.logical_dest = target_cpus();
>+	entry.trigger = edge_level;
>+	entry.polarity = active_high_low;
> 	entry.mask = 1;					 /* Disabled (masked) */
>-	entry.trigger = 1;				   /* Level sensitive */
>-	entry.polarity = 1;					/* Low active */
> 
> 	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 -ur /build/orig/linux-2.4.21-20.1.2024.2.1.nptl/arch/i386/kernel/mpparse.c linux-2.4.21-20.1.2024.2.1.nptl/arch/i386/kernel/mpparse.c
>--- /build/orig/linux-2.4.21-20.1.2024.2.1.nptl/arch/i386/kernel/mpparse.c	2003-07-11 02:55:20.000000000 -0700
>+++ linux-2.4.21-20.1.2024.2.1.nptl/arch/i386/kernel/mpparse.c	2003-08-21 11:06:36.000000000 -0700
>@@ -1256,7 +1256,7 @@
> 
> 	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 */
> }
> 
> #ifdef CONFIG_ACPI_PCI
>@@ -1269,6 +1269,9 @@
> 	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
>@@ -1279,12 +1282,17 @@
> 
> 		/* 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;
> 		}
>-		else
>-			irq = entry->link.index;
>+               else {
>+                       /* Hardwired IRQ. Assume PCI standard settings */
>+		       irq = entry->link.index;
>+		       edge_level = 1;
>+		       active_high_low = 1;
>+               }
> 
> 		/* Don't set up the ACPI SCI because it's already set up */
> 		if (acpi_fadt.sci_int == irq)
>@@ -1317,7 +1325,8 @@
> 
> 		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 -ur /build/orig/linux-2.4.21-20.1.2024.2.1.nptl/drivers/acpi/pci_irq.c linux-2.4.21-20.1.2024.2.1.nptl/drivers/acpi/pci_irq.c
>--- /build/orig/linux-2.4.21-20.1.2024.2.1.nptl/drivers/acpi/pci_irq.c	2003-07-11 02:55:06.000000000 -0700
>+++ linux-2.4.21-20.1.2024.2.1.nptl/drivers/acpi/pci_irq.c	2003-08-21 11:12:02.000000000 -0700
>@@ -24,6 +24,8 @@
>  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>  */
> 
>+#include <linux/config.h>
>+
> #include <linux/kernel.h>
> #include <linux/module.h>
> #include <linux/init.h>
>@@ -36,6 +38,9 @@
> #ifdef CONFIG_X86_IO_APIC
> #include <asm/mpspec.h>
> #endif
>+#ifdef CONFIG_IOSAPIC
>+# include <asm/iosapic.h>
>+#endif
> #include <acpi/acpi_bus.h>
> #include <acpi/acpi_drivers.h>
> 
>@@ -253,7 +258,7 @@
> 	}
> 
> 	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);
>@@ -373,6 +378,10 @@
> 		eisa_set_level_irq(dev->irq);
> 	}
> #endif
>+#ifdef CONFIG_IOSAPIC
>+	if (acpi_irq_model == ACPI_IRQ_MODEL_IOSAPIC)
>+		iosapic_enable_intr(dev->irq);
>+#endif
> 
> 	return_VALUE(dev->irq);
> }
>@@ -392,7 +401,9 @@
> 	}
> 
> 	/* Make sure all link devices have a valid IRQ. */
>-	acpi_pci_link_check();
>+	if (acpi_pci_link_check()) {
>+		return_VALUE(-ENODEV);
>+	}
> 
> #ifdef CONFIG_X86_IO_APIC
> 	/* Program IOAPICs using data from PRT entries. */
>diff -ur /build/orig/linux-2.4.21-20.1.2024.2.1.nptl/drivers/acpi/pci_link.c linux-2.4.21-20.1.2024.2.1.nptl/drivers/acpi/pci_link.c
>--- /build/orig/linux-2.4.21-20.1.2024.2.1.nptl/drivers/acpi/pci_link.c	2003-07-11 02:55:06.000000000 -0700
>+++ linux-2.4.21-20.1.2024.2.1.nptl/drivers/acpi/pci_link.c	2003-08-21 11:17:13.000000000 -0700
>@@ -65,6 +65,9 @@
> 
> struct acpi_pci_link_irq {
> 	u8			active;			/* Current IRQ */
>+	u8			edge_level;		/* All IRQs */
>+	u8			active_high_low;	/* All IRQs */
>+	u8			setonboot;
> 	u8			possible_count;
> 	u8			possible[ACPI_PCI_LINK_MAX_POSSIBLE];
> };
>@@ -114,6 +117,8 @@
> 			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:
>@@ -132,6 +137,8 @@
> 			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:
>@@ -260,7 +267,6 @@
> 	 * IRQ a boot-enabled Link device is set to is the correct one.
> 	 * (Required to support systems such as the Toshiba 5005-S504.)
> 	 */
>-
> 	link->irq.active = irq;
> 
> 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Link at IRQ %d \n", link->irq.active));
>@@ -290,29 +296,33 @@
> 	if (!link || !irq)
> 		return_VALUE(-EINVAL);
> 
>-	/* See if we're already at the target IRQ. */
>-	if (irq == link->irq.active)
>-		return_VALUE(0);
>-
>-	/* Make sure the target IRQ in the list of possible IRQs. */
>-	for (i=0; i<link->irq.possible_count; i++) {
>-		if (irq == link->irq.possible[i])
>-			valid = 1;
>-	}
>-	if (!valid) {
>-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Target IRQ %d invalid\n", irq));
>-		return_VALUE(-EINVAL);
>+	/* We don't check irqs the first time around */
>+	if (link->irq.setonboot) {
>+		/* See if we're already at the target IRQ. */
>+		if (irq == link->irq.active)
>+			return_VALUE(0);
>+
>+		/* Make sure the target IRQ in the list of possible IRQs. */
>+		for (i=0; i<link->irq.possible_count; i++) {
>+			if (irq == link->irq.possible[i])
>+				valid = 1;
>+		}
>+		if (!valid) {
>+			ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Target IRQ %d invalid\n", irq));
>+			return_VALUE(-EINVAL);
>+		}
> 	}
> 
> 	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.shared_exclusive = ACPI_SHARED;
>+		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.number_of_interrupts = 1;
> 		resource.res.data.irq.interrupts[0] = irq;
> 	}
>@@ -320,15 +330,15 @@
> 		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.shared_exclusive = ACPI_SHARED;
>+		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.number_of_interrupts = 1;
> 		resource.res.data.extended_irq.interrupts[0] = irq;
> 		/* ignore resource_source, it's optional */
> 	}
> 	resource.end.id = ACPI_RSTYPE_END_TAG;
> 
>+	/* Attempt to set the resource */
> 	status = acpi_set_current_resources(link->handle, &buffer);
> 	if (ACPI_FAILURE(status)) {
> 		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _SRS\n"));
>@@ -351,11 +361,13 @@
> 	if (result) {
> 		return_VALUE(result);
> 	}
>+   
> 	if (link->irq.active != irq) {
> 		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 
> 			"Attempt to enable at IRQ %d resulted in IRQ %d\n", 
> 			irq, link->irq.active));
> 		link->irq.active = 0;
>+		acpi_ut_evaluate_object (link->handle, "_DIS", 0, NULL);	   
> 		return_VALUE(-ENODEV);
> 	}
> 
>@@ -403,7 +415,7 @@
> 	ACPI_FUNCTION_TRACE("acpi_pci_link_check");
> 
> 	/*
>-	 * Pass #1: Update penalties to facilitate IRQ balancing.
>+	 * Update penalties to facilitate IRQ balancing.
> 	 */
> 	list_for_each(node, &acpi_link.entries) {
> 
>@@ -424,23 +436,23 @@
> 		}
> 	}
> 
>-	/*
>-	 * Pass #2: Enable boot-disabled Links at 'best' IRQ.
>-	 */
>-	list_for_each(node, &acpi_link.entries) {
>-		int		irq = 0;
>-		int		i = 0;
>+	return_VALUE(0);
>+}
> 
>-		link = list_entry(node, struct acpi_pci_link, node);
>-		if (!link || !link->irq.possible_count) {
>-			ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link context\n"));
>-			continue;
>-		}
>+static int acpi_pci_link_allocate(struct acpi_pci_link* link) {
>+	int irq;
>+	int i;
> 
>-		if (link->irq.active)
>-			continue;
>+	ACPI_FUNCTION_TRACE("acpi_pci_link_allocate");
>+
>+	if (link->irq.setonboot)
>+		return_VALUE(0);
> 
>+	if (link->irq.active) {
>+		irq = link->irq.active;
>+	} else {
> 		irq = link->irq.possible[0];
>+	}
> 
> 		/* 
> 		 * Select the best IRQ.  This is done in reverse to promote 
>@@ -451,16 +463,20 @@
> 				irq = link->irq.possible[i];
> 		}
> 
>-		/* Enable the link device at this IRQ. */
>-		acpi_pci_link_set(link, irq);
>-
>+	/* Attempt to enable the link device at this IRQ. */
>+	if (acpi_pci_link_set(link, irq)) {
>+		printk(PREFIX "Unable to set IRQ for %s [%s] (likely buggy ACPI BIOS). Aborting ACPI-based IRQ routing. Try pci=noacpi or acpi=off\n",
>+			acpi_device_name(link->device),
>+			acpi_device_bid(link->device));
>+		return_VALUE(-ENODEV);
>+	} else {
> 		acpi_irq_penalty[link->irq.active] += 100;
>-
> 		printk(PREFIX "%s [%s] enabled at IRQ %d\n", 
> 			acpi_device_name(link->device),
> 			acpi_device_bid(link->device), link->irq.active);
> 	}
> 
>+	link->irq.setonboot = 1;
> 	return_VALUE(0);
> }
> 
>@@ -468,7 +484,9 @@
> 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;
>@@ -494,11 +512,17 @@
> 		return_VALUE(0);
> 	}
> 
>+	if (acpi_pci_link_allocate(link)) {
>+		return -ENODEV;
>+	}
>+	   
> 	if (!link->irq.active) {
> 		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link disabled\n"));
> 		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);
> }
> 
>@@ -588,8 +612,7 @@
> }
> 
> 
>-int __init
>-acpi_pci_link_init (void)
>+int __init acpi_pci_link_init (void)
> {
> 	ACPI_FUNCTION_TRACE("acpi_pci_link_init");
> 
>diff -ur /build/orig/linux-2.4.21-20.1.2024.2.1.nptl/include/acpi/acpi_drivers.h linux-2.4.21-20.1.2024.2.1.nptl/include/acpi/acpi_drivers.h
>--- /build/orig/linux-2.4.21-20.1.2024.2.1.nptl/include/acpi/acpi_drivers.h	2003-07-11 02:55:15.000000000 -0700
>+++ linux-2.4.21-20.1.2024.2.1.nptl/include/acpi/acpi_drivers.h	2003-08-21 11:08:23.000000000 -0700
>@@ -174,9 +174,7 @@
> #define ACPI_PCI_LINK_FILE_STATUS	"state"
> 
> int acpi_pci_link_check (void);
>-int acpi_pci_link_get_irq (acpi_handle handle, int index);
>-int acpi_pci_link_init (void);
>-void acpi_pci_link_exit (void);
>+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) */
>

Actions: View | Diff

Attachments on bug 100499: 93242 | 93245 | 93835