Merge ../linux-2.6/

Documentation/fb/vesafb.txt

@@ -144,7 +144,21 @@ vgapal	Use the standard vga registers for palette changes.
 	This is the default.
 pmipal	Use the protected mode interface for palette changes.
 
-mtrr	setup memory type range registers for the vesafb framebuffer.
+mtrr:n	setup memory type range registers for the vesafb framebuffer
+	where n:
+	      0 - disabled (equivalent to nomtrr)
+	      1 - uncachable
+	      2 - write-back
+	      3 - write-combining (default)
+	      4 - write-through
+
+	If you see the following in dmesg, choose the type that matches the
+	old one. In this example, use "mtrr:2".
+...
+mtrr: type mismatch for e0000000,8000000 old: write-back new: write-combining
+...
+
+nomtrr  disable mtrr
 
 vremap:n
         remap 'n' MiB of video RAM. If 0 or not specified, remap memory

arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c

@@ -442,6 +442,13 @@ acpi_cpufreq_cpu_init (
 			(u32) data->acpi_data.states[i].transition_latency);
 
 	cpufreq_frequency_table_get_attr(data->freq_table, policy->cpu);
+	
+	/*
+	 * the first call to ->target() should result in us actually
+	 * writing something to the appropriate registers.
+	 */
+	data->resume = 1;
+	
 	return (result);
 
  err_freqfree:

arch/i386/pci/acpi.c

@@ -30,6 +30,7 @@ static int __init pci_acpi_init(void)
 	acpi_irq_penalty_init();
 	pcibios_scanned++;
 	pcibios_enable_irq = acpi_pci_irq_enable;
+	pcibios_disable_irq = acpi_pci_irq_disable;
 
 	if (pci_routeirq) {
 		/*

arch/i386/pci/common.c

@@ -254,3 +254,9 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 
 	return pcibios_enable_irq(dev);
 }
+
+void pcibios_disable_device (struct pci_dev *dev)
+{
+	if (pcibios_disable_irq)
+		pcibios_disable_irq(dev);
+}

arch/i386/pci/irq.c

@@ -56,6 +56,7 @@ struct irq_router_handler {
 };
 
 int (*pcibios_enable_irq)(struct pci_dev *dev) = NULL;
+void (*pcibios_disable_irq)(struct pci_dev *dev) = NULL;
 
 /*
  *  Check passed address for the PCI IRQ Routing Table signature

arch/i386/pci/pci.h

@@ -73,3 +73,4 @@ extern int pcibios_scanned;
 extern spinlock_t pci_config_lock;
 
 extern int (*pcibios_enable_irq)(struct pci_dev *dev);
+extern void (*pcibios_disable_irq)(struct pci_dev *dev);

arch/ppc/kernel/head_44x.S

@@ -179,14 +179,14 @@ skpinv:	addi	r4,r4,1				/* Increment */
 4:
 #ifdef CONFIG_SERIAL_TEXT_DEBUG
 	/*
-	 * Add temporary UART mapping for early debug.  This
-	 * mapping must be identical to that used by the early
-	 * bootloader code since the same asm/serial.h parameters
-	 * are used for polled operation.
+	 * Add temporary UART mapping for early debug.
+	 * We can map UART registers wherever we want as long as they don't
+	 * interfere with other system mappings (e.g. with pinned entries).
+	 * For an example of how we handle this - see ocotea.h.       --ebs
 	 */
  	/* pageid fields */
 	lis	r3,UART0_IO_BASE@h
-	ori	r3,r3,PPC44x_TLB_VALID | PPC44x_TLB_256M
+	ori	r3,r3,PPC44x_TLB_VALID | PPC44x_TLB_4K
 
 	/* xlat fields */
 	lis	r4,UART0_PHYS_IO_BASE@h		/* RPN depends on SoC */
@@ -196,7 +196,7 @@ skpinv:	addi	r4,r4,1				/* Increment */
 	li	r5,0
 	ori	r5,r5,(PPC44x_TLB_SW | PPC44x_TLB_SR | PPC44x_TLB_I | PPC44x_TLB_G)
 
-        li      r0,1                    /* TLB slot 1 */
+        li      r0,0                    /* TLB slot 0 */
 
 	tlbwe	r3,r0,PPC44x_TLB_PAGEID	/* Load the pageid fields */
 	tlbwe	r4,r0,PPC44x_TLB_XLAT	/* Load the translation fields */

arch/ppc/kernel/misc.S

@@ -1451,3 +1451,6 @@ _GLOBAL(sys_call_table)
 	.long sys_waitid
 	.long sys_ioprio_set
 	.long sys_ioprio_get
+	.long sys_inotify_init		/* 275 */
+	.long sys_inotify_add_watch
+	.long sys_inotify_rm_watch

arch/ppc/platforms/4xx/ebony.c

@@ -7,7 +7,7 @@
  * Copyright 2002-2005 MontaVista Software Inc.
  *
  * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- * Copyright (c) 2003, 2004 Zultys Technologies
+ * Copyright (c) 2003-2005 Zultys Technologies
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -50,6 +50,7 @@
 #include <asm/bootinfo.h>
 #include <asm/ppc4xx_pic.h>
 #include <asm/ppcboot.h>
+#include <asm/tlbflush.h>
 
 #include <syslib/gen550.h>
 #include <syslib/ibm440gp_common.h>
@@ -248,6 +249,9 @@ ebony_early_serial_map(void)
 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
 	/* Configure debug serial access */
 	gen550_init(0, &port);
+
+	/* Purge TLB entry added in head_44x.S for early serial access */
+	_tlbie(UART0_IO_BASE);
 #endif
 
 	port.membase = ioremap64(PPC440GP_UART1_ADDR, 8);

arch/ppc/platforms/4xx/ebony.h

@@ -56,9 +56,18 @@
  * Serial port defines
  */
 
-/* OpenBIOS defined UART mappings, used before early_serial_setup */
+#if defined(__BOOTER__)
+/* OpenBIOS defined UART mappings, used by bootloader shim */
 #define UART0_IO_BASE	0xE0000200
 #define UART1_IO_BASE	0xE0000300
+#else
+/* head_44x.S created UART mapping, used before early_serial_setup.
+ * We cannot use default OpenBIOS UART mappings because they
+ * don't work for configurations with more than 512M RAM.    --ebs
+ */
+#define UART0_IO_BASE	0xF0000200
+#define UART1_IO_BASE	0xF0000300
+#endif
 
 /* external Epson SG-615P */
 #define BASE_BAUD	691200
@@ -66,7 +75,7 @@
 #define STD_UART_OP(num)					\
 	{ 0, BASE_BAUD, 0, UART##num##_INT,			\
 		(ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST),	\
-		iomem_base: UART##num##_IO_BASE,		\
+		iomem_base: (void*)UART##num##_IO_BASE,		\
 		io_type: SERIAL_IO_MEM},
 
 #define SERIAL_PORT_DFNS	\

arch/ppc/platforms/4xx/ocotea.c

@@ -48,6 +48,7 @@
 #include <asm/bootinfo.h>
 #include <asm/ppc4xx_pic.h>
 #include <asm/ppcboot.h>
+#include <asm/tlbflush.h>
 
 #include <syslib/gen550.h>
 #include <syslib/ibm440gx_common.h>
@@ -266,6 +267,9 @@ ocotea_early_serial_map(void)
 #if defined(CONFIG_SERIAL_TEXT_DEBUG) || defined(CONFIG_KGDB)
 	/* Configure debug serial access */
 	gen550_init(0, &port);
+
+	/* Purge TLB entry added in head_44x.S for early serial access */
+	_tlbie(UART0_IO_BASE);
 #endif
 
 	port.membase = ioremap64(PPC440GX_UART1_ADDR, 8);

arch/ppc/platforms/4xx/ocotea.h

@@ -55,15 +55,24 @@
  */
 #define RS_TABLE_SIZE	2
 
-/* OpenBIOS defined UART mappings, used before early_serial_setup */
+#if defined(__BOOTER__)
+/* OpenBIOS defined UART mappings, used by bootloader shim */
 #define UART0_IO_BASE	0xE0000200
 #define UART1_IO_BASE	0xE0000300
+#else
+/* head_44x.S created UART mapping, used before early_serial_setup.
+ * We cannot use default OpenBIOS UART mappings because they
+ * don't work for configurations with more than 512M RAM.    --ebs
+ */
+#define UART0_IO_BASE	0xF0000200
+#define UART1_IO_BASE	0xF0000300
+#endif
 
 #define BASE_BAUD	11059200/16
 #define STD_UART_OP(num)					\
 	{ 0, BASE_BAUD, 0, UART##num##_INT,			\
 		(ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST),	\
-		iomem_base: UART##num##_IO_BASE,		\
+		iomem_base: (void*)UART##num##_IO_BASE,		\
 		io_type: SERIAL_IO_MEM},
 
 #define SERIAL_PORT_DFNS	\

arch/ppc64/kernel/misc.S

@@ -1129,6 +1129,9 @@ _GLOBAL(sys_call_table32)
 	.llong .compat_sys_waitid
 	.llong .sys32_ioprio_set
 	.llong .sys32_ioprio_get
+	.llong .sys_inotify_init	/* 275 */
+	.llong .sys_inotify_add_watch
+	.llong .sys_inotify_rm_watch
 
 	.balign 8
 _GLOBAL(sys_call_table)
@@ -1407,3 +1410,6 @@ _GLOBAL(sys_call_table)
 	.llong .sys_waitid
 	.llong .sys_ioprio_set
 	.llong .sys_ioprio_get
+	.llong .sys_inotify_init	/* 275 */
+	.llong .sys_inotify_add_watch
+	.llong .sys_inotify_rm_watch

arch/x86_64/kernel/mpparse.c

@@ -970,8 +970,21 @@ int mp_register_gsi(u32 gsi, int edge_level, int active_high_low)
 		 * due to unused I/O APIC pins.
 		 */
 		int irq = gsi;
-		gsi = pci_irq++;
-		gsi_to_irq[irq] = gsi;
+		if (gsi < MAX_GSI_NUM) {
+			if (gsi > 15)
+				gsi = pci_irq++;
+#ifdef CONFIG_ACPI_BUS
+			/*
+			 * Don't assign IRQ used by ACPI SCI
+			 */
+			if (gsi == acpi_fadt.sci_int)
+				gsi = pci_irq++;
+#endif
+			gsi_to_irq[irq] = gsi;
+		} else {
+			printk(KERN_ERR "GSI %u is too high\n", gsi);
+			return gsi;
+		}
 	}
 
 	io_apic_set_pci_routing(ioapic, ioapic_pin, gsi,

arch/x86_64/lib/csum-copy.S

@@ -188,8 +188,8 @@ csum_partial_copy_generic:
 	source
 	movw (%rdi),%bx
 	adcl %ebx,%eax
-	dest
 	decl %ecx
+	dest
 	movw %bx,(%rsi)
 	leaq 2(%rdi),%rdi
 	leaq 2(%rsi),%rsi

drivers/acpi/pci_irq.c

@@ -269,7 +269,51 @@ acpi_pci_irq_del_prt (int segment, int bus)
 /* --------------------------------------------------------------------------
                           PCI Interrupt Routing Support
    -------------------------------------------------------------------------- */
+typedef int (*irq_lookup_func)(struct acpi_prt_entry *, int *, int *, char **);
 
+static int
+acpi_pci_allocate_irq(struct acpi_prt_entry *entry,
+	int	*edge_level,
+	int	*active_high_low,
+	char	**link)
+{
+	int	irq;
+
+	ACPI_FUNCTION_TRACE("acpi_pci_allocate_irq");
+
+	if (entry->link.handle) {
+		irq = acpi_pci_link_allocate_irq(entry->link.handle,
+			entry->link.index, edge_level, active_high_low, link);
+		if (irq < 0) {
+			ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid IRQ link routing entry\n"));
+			return_VALUE(-1);
+		}
+	} else {
+		irq = entry->link.index;
+		*edge_level = ACPI_LEVEL_SENSITIVE;
+		*active_high_low = ACPI_ACTIVE_LOW;
+	}
+
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found IRQ %d\n", irq));
+	return_VALUE(irq);
+}
+
+static int
+acpi_pci_free_irq(struct acpi_prt_entry *entry,
+	int	*edge_level,
+	int	*active_high_low,
+	char	**link)
+{
+	int	irq;
+
+	ACPI_FUNCTION_TRACE("acpi_pci_free_irq");
+	if (entry->link.handle) {
+		irq = acpi_pci_link_free_irq(entry->link.handle);
+	} else {
+		irq = entry->link.index;
+	}
+	return_VALUE(irq);
+}
 /*
  * acpi_pci_irq_lookup
  * success: return IRQ >= 0
@@ -282,12 +326,13 @@ acpi_pci_irq_lookup (
 	int			pin,
 	int			*edge_level,
 	int			*active_high_low,
-	char			**link)
+	char			**link,
+	irq_lookup_func		func)
 {
 	struct acpi_prt_entry	*entry = NULL;
 	int segment = pci_domain_nr(bus);
 	int bus_nr = bus->number;
-	int irq;
+	int ret;
 
 	ACPI_FUNCTION_TRACE("acpi_pci_irq_lookup");
 
@@ -301,22 +346,8 @@ acpi_pci_irq_lookup (
 		return_VALUE(-1);
 	}
 	
-	if (entry->link.handle) {
-		irq = acpi_pci_link_get_irq(entry->link.handle,
-			entry->link.index, edge_level, active_high_low, link);
-		if (irq < 0) {
-			ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Invalid IRQ link routing entry\n"));
-			return_VALUE(-1);
-		}
-	} else {
-		irq = entry->link.index;
-		*edge_level = ACPI_LEVEL_SENSITIVE;
-		*active_high_low = ACPI_ACTIVE_LOW;
-	}
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found IRQ %d\n", irq));
-
-	return_VALUE(irq);
+	ret = func(entry, edge_level, active_high_low, link);
+	return_VALUE(ret);
 }
 
 /*
@@ -330,7 +361,8 @@ acpi_pci_irq_derive (
 	int			pin,
 	int			*edge_level,
 	int			*active_high_low,
-	char			**link)
+	char			**link,
+	irq_lookup_func		func)
 {
 	struct pci_dev		*bridge = dev;
 	int			irq = -1;
@@ -363,7 +395,7 @@ acpi_pci_irq_derive (
 		}
 
 		irq = acpi_pci_irq_lookup(bridge->bus, PCI_SLOT(bridge->devfn),
-			pin, edge_level, active_high_low, link);
+			pin, edge_level, active_high_low, link, func);
 	}
 
 	if (irq < 0) {
@@ -415,7 +447,7 @@ acpi_pci_irq_enable (
 	 * values override any BIOS-assigned IRQs set during boot.
 	 */
  	irq = acpi_pci_irq_lookup(dev->bus, PCI_SLOT(dev->devfn), pin,
-		&edge_level, &active_high_low, &link);
+		&edge_level, &active_high_low, &link, acpi_pci_allocate_irq);
 
 	/*
 	 * If no PRT entry was found, we'll try to derive an IRQ from the
@@ -423,7 +455,7 @@ acpi_pci_irq_enable (
 	 */
 	if (irq < 0)
  		irq = acpi_pci_irq_derive(dev, pin, &edge_level,
-			&active_high_low, &link);
+			&active_high_low, &link, acpi_pci_allocate_irq);
  
 	/*
 	 * No IRQ known to the ACPI subsystem - maybe the BIOS / 
@@ -462,7 +494,9 @@ acpi_pci_irq_enable (
 EXPORT_SYMBOL(acpi_pci_irq_enable);
 
 
-#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
+/* FIXME: implement x86/x86_64 version */
+void __attribute__((weak)) acpi_unregister_gsi(u32 i) {}
+
 void
 acpi_pci_irq_disable (
 	struct pci_dev		*dev)
@@ -489,14 +523,14 @@ acpi_pci_irq_disable (
 	 * First we check the PCI IRQ routing table (PRT) for an IRQ.
 	 */
  	gsi = acpi_pci_irq_lookup(dev->bus, PCI_SLOT(dev->devfn), pin,
-				  &edge_level, &active_high_low, NULL);
+			&edge_level, &active_high_low, NULL, acpi_pci_free_irq);
 	/*
 	 * If no PRT entry was found, we'll try to derive an IRQ from the
 	 * device's parent bridge.
 	 */
 	if (gsi < 0)
  		gsi = acpi_pci_irq_derive(dev, pin,
-					  &edge_level, &active_high_low, NULL);
+			&edge_level, &active_high_low, NULL, acpi_pci_free_irq);
 	if (gsi < 0)
 		return_VOID;
 
@@ -512,4 +546,3 @@ acpi_pci_irq_disable (
 
 	return_VOID;
 }
-#endif /* CONFIG_ACPI_DEALLOCATE_IRQ */

drivers/acpi/pci_link.c

@@ -68,6 +68,10 @@ static struct acpi_driver acpi_pci_link_driver = {
 			},
 };
 
+/*
+ * If a link is initialized, we never change its active and initialized
+ * later even the link is disable. Instead, we just repick the active irq
+ */
 struct acpi_pci_link_irq {
 	u8			active;			/* Current IRQ */
 	u8			edge_level;		/* All IRQs */
@@ -76,8 +80,7 @@ struct acpi_pci_link_irq {
 	u8			possible_count;
 	u8			possible[ACPI_PCI_LINK_MAX_POSSIBLE];
 	u8			initialized:1;
-	u8			suspend_resume:1;
-	u8			reserved:6;
+	u8			reserved:7;
 };
 
 struct acpi_pci_link {
@@ -85,12 +88,14 @@ struct acpi_pci_link {
 	struct acpi_device	*device;
 	acpi_handle		handle;
 	struct acpi_pci_link_irq irq;
+	int			refcnt;
 };
 
 static struct {
 	int			count;
 	struct list_head	entries;
 }				acpi_link;
+DECLARE_MUTEX(acpi_link_lock);
 
 
 /* --------------------------------------------------------------------------
@@ -532,12 +537,12 @@ static int acpi_pci_link_allocate(
 
 	ACPI_FUNCTION_TRACE("acpi_pci_link_allocate");
 
-	if (link->irq.suspend_resume) {
-		acpi_pci_link_set(link, link->irq.active);
-		link->irq.suspend_resume = 0;
-	}
-	if (link->irq.initialized)
+	if (link->irq.initialized) {
+		if (link->refcnt == 0)
+			/* This means the link is disabled but initialized */
+			acpi_pci_link_set(link, link->irq.active);
 		return_VALUE(0);
+	}
 
 	/*
 	 * search for active IRQ in list of possible IRQs.
@@ -596,13 +601,13 @@ static int acpi_pci_link_allocate(
 }
 
 /*
- * acpi_pci_link_get_irq
+ * acpi_pci_link_allocate_irq
  * success: return IRQ >= 0
  * failure: return -1
  */
 
 int
-acpi_pci_link_get_irq (
+acpi_pci_link_allocate_irq (
 	acpi_handle		handle,
 	int			index,
 	int			*edge_level,
@@ -613,7 +618,7 @@ acpi_pci_link_get_irq (
 	struct acpi_device	*device = NULL;
 	struct acpi_pci_link	*link = NULL;
 
-	ACPI_FUNCTION_TRACE("acpi_pci_link_get_irq");
+	ACPI_FUNCTION_TRACE("acpi_pci_link_allocate_irq");
 
 	result = acpi_bus_get_device(handle, &device);
 	if (result) {
@@ -633,21 +638,70 @@ acpi_pci_link_get_irq (
 		return_VALUE(-1);
 	}
 
-	if (acpi_pci_link_allocate(link))
+	down(&acpi_link_lock);
+	if (acpi_pci_link_allocate(link)) {
+		up(&acpi_link_lock);
 		return_VALUE(-1);
+	}
 	   
 	if (!link->irq.active) {
+		up(&acpi_link_lock);
 		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link active IRQ is 0!\n"));
 		return_VALUE(-1);
 	}
+	link->refcnt ++;
+	up(&acpi_link_lock);
 
 	if (edge_level) *edge_level = link->irq.edge_level;
 	if (active_high_low) *active_high_low = link->irq.active_high_low;
 	if (name) *name = acpi_device_bid(link->device);
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+		"Link %s is referenced\n", acpi_device_bid(link->device)));
 	return_VALUE(link->irq.active);
 }
 
+/*
+ * We don't change link's irq information here.  After it is reenabled, we
+ * continue use the info
+ */
+int
+acpi_pci_link_free_irq(acpi_handle handle)
+{
+	struct acpi_device	*device = NULL;
+	struct acpi_pci_link	*link = NULL;
+	acpi_status		result;
+
+	ACPI_FUNCTION_TRACE("acpi_pci_link_free_irq");
+
+	result = acpi_bus_get_device(handle, &device);
+	if (result) {
+		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link device\n"));
+		return_VALUE(-1);
+	}
 
+	link = (struct acpi_pci_link *) acpi_driver_data(device);
+	if (!link) {
+		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link context\n"));
+		return_VALUE(-1);
+	}
+
+	down(&acpi_link_lock);
+	if (!link->irq.initialized) {
+		up(&acpi_link_lock);
+		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link isn't initialized\n"));
+		return_VALUE(-1);
+	}
+
+	link->refcnt --;
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+		"Link %s is dereferenced\n", acpi_device_bid(link->device)));
+
+	if (link->refcnt == 0) {
+		acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
+	}
+	up(&acpi_link_lock);
+	return_VALUE(link->irq.active);
+}
 /* --------------------------------------------------------------------------
                                  Driver Interface
    -------------------------------------------------------------------------- */
@@ -677,6 +731,7 @@ acpi_pci_link_add (
 	strcpy(acpi_device_class(device), ACPI_PCI_LINK_CLASS);
 	acpi_driver_data(device) = link;
 
+	down(&acpi_link_lock);
 	result = acpi_pci_link_get_possible(link);
 	if (result)
 		goto end;
@@ -712,6 +767,7 @@ acpi_pci_link_add (
 end:
 	/* disable all links -- to be activated on use */
 	acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
+	up(&acpi_link_lock);
 
 	if (result)
 		kfree(link);
@@ -726,19 +782,32 @@ irqrouter_suspend(
 {
 	struct list_head        *node = NULL;
 	struct acpi_pci_link    *link = NULL;
+	int			ret = 0;
 
 	ACPI_FUNCTION_TRACE("irqrouter_suspend");
 
 	list_for_each(node, &acpi_link.entries) {
 		link = list_entry(node, struct acpi_pci_link, node);
 		if (!link) {
-			ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid link context\n"));
+			ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+				"Invalid link context\n"));
 			continue;
 		}
-		if (link->irq.active && link->irq.initialized)
-			link->irq.suspend_resume = 1;
+		if (link->irq.initialized && link->refcnt != 0
+			/* We ignore legacy IDE device irq */
+			&& link->irq.active != 14 && link->irq.active !=15) {
+			printk(KERN_WARNING PREFIX
+				"%d drivers with interrupt %d neglected to call"
+				" pci_disable_device at .suspend\n",
+				link->refcnt,
+				link->irq.active);
+			printk(KERN_WARNING PREFIX
+				"Fix the driver, or rmmod before suspend\n");
+			link->refcnt = 0;
+			ret = -EINVAL;
+		}
 	}
-	return_VALUE(0);
+	return_VALUE(ret);
 }
 
 
@@ -756,8 +825,9 @@ acpi_pci_link_remove (
 
 	link = (struct acpi_pci_link *) acpi_driver_data(device);
 
-	/* TBD: Acquire/release lock */
+	down(&acpi_link_lock);
 	list_del(&link->node);
+	up(&acpi_link_lock);
 
 	kfree(link);
 
@@ -849,6 +919,7 @@ int __init acpi_irq_balance_set(char *str)
 __setup("acpi_irq_balance", acpi_irq_balance_set);
 
 
+/* FIXME: we will remove this interface after all drivers call pci_disable_device */
 static struct sysdev_class irqrouter_sysdev_class = {
         set_kset_name("irqrouter"),
         .suspend = irqrouter_suspend,

drivers/acpi/processor_idle.c

@@ -81,30 +81,33 @@ module_param(bm_history, uint, 0644);
  *
  * To skip this limit, boot/load with a large max_cstate limit.
  */
-static int no_c2c3(struct dmi_system_id *id)
+static int set_max_cstate(struct dmi_system_id *id)
 {
 	if (max_cstate > ACPI_PROCESSOR_MAX_POWER)
 		return 0;
 
-	printk(KERN_NOTICE PREFIX "%s detected - C2,C3 disabled."
+	printk(KERN_NOTICE PREFIX "%s detected - %s disabled."
 		" Override with \"processor.max_cstate=%d\"\n", id->ident,
+		((int)id->driver_data == 1)? "C2,C3":"C3",
 	       ACPI_PROCESSOR_MAX_POWER + 1);
 
-	max_cstate = 1;
+	max_cstate = (int)id->driver_data;
 
 	return 0;
 }
 
 
-
-
 static struct dmi_system_id __initdata processor_power_dmi_table[] = {
-	{ no_c2c3, "IBM ThinkPad R40e", {
+	{ set_max_cstate, "IBM ThinkPad R40e", {
 	  DMI_MATCH(DMI_BIOS_VENDOR,"IBM"),
-	  DMI_MATCH(DMI_BIOS_VERSION,"1SET60WW") }},
-	{ no_c2c3, "Medion 41700", {
+	  DMI_MATCH(DMI_BIOS_VERSION,"1SET60WW") }, (void*)1},
+	{ set_max_cstate, "Medion 41700", {
+	  DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
+	  DMI_MATCH(DMI_BIOS_VERSION,"R01-A1J") }, (void*)1},
+	{ set_max_cstate, "Clevo 5600D", {
 	  DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
-	  DMI_MATCH(DMI_BIOS_VERSION,"R01-A1J") }},
+	  DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307") },
+	  (void*)2},
 	{},
 };
 
@@ -549,7 +552,8 @@ static int acpi_processor_get_power_info_default_c1 (struct acpi_processor *pr)
 	ACPI_FUNCTION_TRACE("acpi_processor_get_power_info_default_c1");
 
 	for (i = 0; i < ACPI_PROCESSOR_MAX_POWER; i++)
-		memset(pr->power.states, 0, sizeof(struct acpi_processor_cx));
+		memset(&(pr->power.states[i]), 0, 
+		       sizeof(struct acpi_processor_cx));
 
 	/* if info is obtained from pblk/fadt, type equals state */
 	pr->power.states[ACPI_STATE_C1].type = ACPI_STATE_C1;
@@ -580,7 +584,8 @@ static int acpi_processor_get_power_info_cst (struct acpi_processor *pr)
 
 	pr->power.count = 0;
 	for (i = 0; i < ACPI_PROCESSOR_MAX_POWER; i++)
-		memset(pr->power.states, 0, sizeof(struct acpi_processor_cx));
+		memset(&(pr->power.states[i]), 0, 
+		       sizeof(struct acpi_processor_cx));
 
 	status = acpi_evaluate_object(pr->handle, "_CST", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
@@ -763,7 +768,6 @@ static void acpi_processor_power_verify_c3(
 	}
 
 	if (pr->flags.bm_check) {
-		printk("Disabling BM access before entering C3\n");
 		/* bus mastering control is necessary */
 		if (!pr->flags.bm_control) {
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -771,7 +775,6 @@ static void acpi_processor_power_verify_c3(
 			return_VOID;
 		}
 	} else {
-		printk("Invalidating cache before entering C3\n");
 		/*
 		 * WBINVD should be set in fadt, for C3 state to be
 		 * supported on when bm_check is not required.
@@ -842,7 +845,7 @@ static int acpi_processor_get_power_info (
 	result = acpi_processor_get_power_info_cst(pr);
 	if ((result) || (acpi_processor_power_verify(pr) < 2)) {
 		result = acpi_processor_get_power_info_fadt(pr);
-		if (result)
+		if ((result) || (acpi_processor_power_verify(pr) < 2))
 			result = acpi_processor_get_power_info_default_c1(pr);
 	}
 

drivers/net/sk98lin/skge.c

@@ -5133,6 +5133,81 @@ static void __devexit skge_remove_one(struct pci_dev *pdev)
 	kfree(pAC);
 }
 
+#ifdef CONFIG_PM
+static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	DEV_NET *pNet = netdev_priv(dev);
+	SK_AC *pAC = pNet->pAC;
+	struct net_device *otherdev = pAC->dev[1];
+
+	if (netif_running(dev)) {
+		netif_carrier_off(dev);
+		DoPrintInterfaceChange = SK_FALSE;
+		SkDrvDeInitAdapter(pAC, 0);  /* performs SkGeClose */
+		netif_device_detach(dev);
+	}
+	if (otherdev != dev) {
+		if (netif_running(otherdev)) {
+			netif_carrier_off(otherdev);
+			DoPrintInterfaceChange = SK_FALSE;
+			SkDrvDeInitAdapter(pAC, 1);  /* performs SkGeClose */
+			netif_device_detach(otherdev);
+		}
+	}
+
+	pci_save_state(pdev);
+	pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
+	if (pAC->AllocFlag & SK_ALLOC_IRQ) {
+		free_irq(dev->irq, dev);
+	}
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+	return 0;
+}
+
+static int skge_resume(struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	DEV_NET *pNet = netdev_priv(dev);
+	SK_AC *pAC = pNet->pAC;
+	struct net_device *otherdev = pAC->dev[1];
+	int ret;
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+	pci_enable_device(pdev);
+	pci_set_master(pdev);
+	if (pAC->GIni.GIMacsFound == 2)
+		ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, pAC->Name, dev);
+	else
+		ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ, pAC->Name, dev);
+	if (ret) {
+		printk(KERN_WARNING "sk98lin: unable to acquire IRQ %d\n", dev->irq);
+		pAC->AllocFlag &= ~SK_ALLOC_IRQ;
+		dev->irq = 0;
+		pci_disable_device(pdev);
+		return -EBUSY;
+	}
+
+	netif_device_attach(dev);
+	if (netif_running(dev)) {
+		DoPrintInterfaceChange = SK_FALSE;
+		SkDrvInitAdapter(pAC, 0);    /* first device  */
+	}
+	if (otherdev != dev) {
+		netif_device_attach(otherdev);
+		if (netif_running(otherdev)) {
+			DoPrintInterfaceChange = SK_FALSE;
+			SkDrvInitAdapter(pAC, 1);    /* second device  */
+		}
+	}
+
+	return 0;
+}
+#endif
+
 static struct pci_device_id skge_pci_tbl[] = {
 	{ PCI_VENDOR_ID_3COM, 0x1700, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ PCI_VENDOR_ID_3COM, 0x80eb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
@@ -5158,6 +5233,8 @@ static struct pci_driver skge_driver = {
 	.id_table	= skge_pci_tbl,
 	.probe		= skge_probe_one,
 	.remove		= __devexit_p(skge_remove_one),
+	.suspend	= skge_suspend,
+	.resume		= skge_resume,
 };
 
 static int __init skge_init(void)

drivers/pcmcia/yenta_socket.c

@@ -1107,8 +1107,6 @@ static int yenta_dev_suspend (struct pci_dev *dev, pm_message_t state)
 		pci_read_config_dword(dev, 17*4, &socket->saved_state[1]);
 		pci_disable_device(dev);
 
-		free_irq(dev->irq, socket);
-
 		/*
 		 * Some laptops (IBM T22) do not like us putting the Cardbus
 		 * bridge into D3.  At a guess, some other laptop will
@@ -1134,13 +1132,6 @@ static int yenta_dev_resume (struct pci_dev *dev)
 		pci_enable_device(dev);
 		pci_set_master(dev);
 
-		if (socket->cb_irq)
-			if (request_irq(socket->cb_irq, yenta_interrupt,
-			                SA_SHIRQ, "yenta", socket)) {
-				printk(KERN_WARNING "Yenta: request_irq() failed on resume!\n");
-				socket->cb_irq = 0;
-			}
-
 		if (socket->type && socket->type->restore_state)
 			socket->type->restore_state(socket);
 	}

include/acpi/acpi_drivers.h

@@ -56,8 +56,9 @@
 /* ACPI PCI Interrupt Link (pci_link.c) */
 
 int acpi_irq_penalty_init (void);
-int acpi_pci_link_get_irq (acpi_handle handle, int index, int *edge_level,
+int acpi_pci_link_allocate_irq (acpi_handle handle, int index, int *edge_level,
 	int *active_high_low, char **name);
+int acpi_pci_link_free_irq(acpi_handle handle);
 
 /* ACPI PCI Interrupt Routing (pci_irq.c) */
 

include/asm-ppc/unistd.h

@@ -279,8 +279,11 @@
 #define __NR_waitid		272
 #define __NR_ioprio_set		273
 #define __NR_ioprio_get		274
+#define __NR_inotify_init	275
+#define __NR_inotify_add_watch	276
+#define __NR_inotify_rm_watch	277
 
-#define __NR_syscalls		275
+#define __NR_syscalls		278
 
 #define __NR(n)	#n
 

include/asm-ppc64/unistd.h

@@ -285,8 +285,11 @@
 #define __NR_waitid		272
 #define __NR_ioprio_set		273
 #define __NR_ioprio_get		274
+#define __NR_inotify_init	275
+#define __NR_inotify_add_watch	276
+#define __NR_inotify_rm_watch	277
 
-#define __NR_syscalls		275
+#define __NR_syscalls		278
 #ifdef __KERNEL__
 #define NR_syscalls	__NR_syscalls
 #endif

include/linux/acpi.h

@@ -453,9 +453,7 @@ int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
  * If this matches the last registration, any IRQ resources for gsi
  * are freed.
  */
-#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
 void acpi_unregister_gsi (u32 gsi);
-#endif
 
 #ifdef CONFIG_ACPI_PCI
 
@@ -480,9 +478,7 @@ struct pci_dev;
 int acpi_pci_irq_enable (struct pci_dev *dev);
 void acpi_penalize_isa_irq(int irq, int active);
 
-#ifdef CONFIG_ACPI_DEALLOCATE_IRQ
 void acpi_pci_irq_disable (struct pci_dev *dev);
-#endif
 
 struct acpi_pci_driver {
 	struct acpi_pci_driver *next;

kernel/softirq.c

@@ -86,7 +86,7 @@ asmlinkage void __do_softirq(void)
 	/* Reset the pending bitmask before enabling irqs */
 	local_softirq_pending() = 0;
 
-	//local_irq_enable();
+	local_irq_enable();
 
 	h = softirq_vec;
 
@@ -99,7 +99,7 @@ asmlinkage void __do_softirq(void)
 		pending >>= 1;
 	} while (pending);
 
-	//local_irq_disable();
+	local_irq_disable();
 
 	pending = local_softirq_pending();
 	if (pending && --max_restart)

mm/page_alloc.c

@@ -1061,20 +1061,19 @@ unsigned int nr_free_pages_pgdat(pg_data_t *pgdat)
 
 static unsigned int nr_free_zone_pages(int offset)
 {
-	pg_data_t *pgdat;
+	/* Just pick one node, since fallback list is circular */
+	pg_data_t *pgdat = NODE_DATA(numa_node_id());
 	unsigned int sum = 0;
 
-	for_each_pgdat(pgdat) {
-		struct zonelist *zonelist = pgdat->node_zonelists + offset;
-		struct zone **zonep = zonelist->zones;
-		struct zone *zone;
+	struct zonelist *zonelist = pgdat->node_zonelists + offset;
+	struct zone **zonep = zonelist->zones;
+	struct zone *zone;
 
-		for (zone = *zonep++; zone; zone = *zonep++) {
-			unsigned long size = zone->present_pages;
-			unsigned long high = zone->pages_high;
-			if (size > high)
-				sum += size - high;
-		}
+	for (zone = *zonep++; zone; zone = *zonep++) {
+		unsigned long size = zone->present_pages;
+		unsigned long high = zone->pages_high;
+		if (size > high)
+			sum += size - high;
 	}
 
 	return sum;

sound/pci/intel8x0.c

@@ -2376,6 +2376,9 @@ static int intel8x0_suspend(snd_card_t *card, pm_message_t state)
 			snd_ac97_suspend(chip->ac97[i]);
 	if (chip->device_type == DEVICE_INTEL_ICH4)
 		chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
+
+	if (chip->irq >= 0)
+		free_irq(chip->irq, (void *)chip);
 	pci_disable_device(chip->pci);
 	return 0;
 }
@@ -2387,7 +2390,9 @@ static int intel8x0_resume(snd_card_t *card)
 
 	pci_enable_device(chip->pci);
 	pci_set_master(chip->pci);
-	snd_intel8x0_chip_init(chip, 0);
+	request_irq(chip->irq, snd_intel8x0_interrupt, SA_INTERRUPT|SA_SHIRQ, card->shortname, (void *)chip);
+	synchronize_irq(chip->irq);
+	snd_intel8x0_chip_init(chip, 1);
 
 	/* re-initialize mixer stuff */
 	if (chip->device_type == DEVICE_INTEL_ICH4) {