Merge branch 'release-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-merge-2.6

* 'release-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-merge-2.6: (87 commits)
  Fix FADT parsing
  Add the ability to reset the machine using the RESET_REG in ACPI's FADT table.
  ACPI: use dev_printk when possible
  PNPACPI: add support for HP vendor-specific CCSR descriptors
  PNP: avoid legacy IDE IRQs
  PNP: convert resource options to single linked list
  ISAPNP: handle independent options following dependent ones
  PNP: remove extra 0x100 bit from option priority
  PNP: support optional IRQ resources
  PNP: rename pnp_register_*_resource() local variables
  PNPACPI: ignore _PRS interrupt numbers larger than PNP_IRQ_NR
  PNP: centralize resource option allocations
  PNP: remove redundant pnp_can_configure() check
  PNP: make resource assignment functions return 0 (success) or -EBUSY (failure)
  PNP: in debug resource dump, make empty list obvious
  PNP: improve resource assignment debug
  PNP: increase I/O port & memory option address sizes
  PNP: introduce pnp_irq_mask_t typedef
  PNP: make resource option structures private to PNP subsystem
  PNP: define PNP-specific IORESOURCE_IO_* flags alongside IRQ, DMA, MEM
  ...

4 files changed, 94 insertions, 68 deletions

diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index 08934995c7ab..deddeedf3257 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -128,6 +128,15 @@ static inline void set_freezable(void)
 }
 
 /*
+ * Tell the freezer that the current task should be frozen by it and that it
+ * should send a fake signal to the task to freeze it.
+ */
+static inline void set_freezable_with_signal(void)
+{
+        current->flags &= ~(PF_NOFREEZE | PF_FREEZER_NOSIG);
+}
+
+/*
  * Freezer-friendly wrappers around wait_event_interruptible() and
  * wait_event_interruptible_timeout(), originally defined in <linux/wait.h>
  */
@@ -174,6 +183,7 @@ static inline void freezer_do_not_count(void) {}
 static inline void freezer_count(void) {}
 static inline int freezer_should_skip(struct task_struct *p) { return 0; }
 static inline void set_freezable(void) {}
+static inline void set_freezable_with_signal(void) {}
 
 #define wait_event_freezable(wq, condition)                             \
                 wait_event_interruptible(wq, condition)
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index c6801bffe76d..2cd07cc29687 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -59,6 +59,7 @@ struct resource_list {
 #define IORESOURCE_IRQ_HIGHLEVEL        (1<<2)
 #define IORESOURCE_IRQ_LOWLEVEL         (1<<3)
 #define IORESOURCE_IRQ_SHAREABLE        (1<<4)
+#define IORESOURCE_IRQ_OPTIONAL         (1<<5)
 
 /* PnP DMA specific bits (IORESOURCE_BITS) */
 #define IORESOURCE_DMA_TYPE_MASK        (3<<0)
@@ -88,6 +89,10 @@ struct resource_list {
 #define IORESOURCE_MEM_SHADOWABLE       (1<<5)  /* dup: IORESOURCE_SHADOWABLE */
 #define IORESOURCE_MEM_EXPANSIONROM     (1<<6)
 
+/* PnP I/O specific bits (IORESOURCE_BITS) */
+#define IORESOURCE_IO_16BIT_ADDR        (1<<0)
+#define IORESOURCE_IO_FIXED             (1<<1)
+
 /* PCI ROM control bits (IORESOURCE_BITS) */
 #define IORESOURCE_ROM_ENABLE           (1<<0)  /* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */
 #define IORESOURCE_ROM_SHADOW           (1<<1)  /* ROM is copy at C000:0 */
diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index 63b128d512fb..1ce54b63085d 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -1,6 +1,8 @@
 /*
  * Linux Plug and Play Support
  * Copyright by Adam Belay <ambx1@neo.rr.com>
+ * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
+ *      Bjorn Helgaas <bjorn.helgaas@hp.com>
  */
 
 #ifndef _LINUX_PNP_H
@@ -15,7 +17,6 @@
 
 struct pnp_protocol;
 struct pnp_dev;
-struct pnp_resource_table;
 
 /*
  * Resource Management
@@ -24,7 +25,14 @@ struct resource *pnp_get_resource(struct pnp_dev *, unsigned int, unsigned int);
 
 static inline int pnp_resource_valid(struct resource *res)
 {
-        if (res && !(res->flags & IORESOURCE_UNSET))
+        if (res)
+                return 1;
+        return 0;
+}
+
+static inline int pnp_resource_enabled(struct resource *res)
+{
+        if (res && !(res->flags & IORESOURCE_DISABLED))
                 return 1;
         return 0;
 }
@@ -40,19 +48,31 @@ static inline resource_size_t pnp_resource_len(struct resource *res)
 static inline resource_size_t pnp_port_start(struct pnp_dev *dev,
                                              unsigned int bar)
 {
-        return pnp_get_resource(dev, IORESOURCE_IO, bar)->start;
+        struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
+
+        if (pnp_resource_valid(res))
+                return res->start;
+        return 0;
 }
 
 static inline resource_size_t pnp_port_end(struct pnp_dev *dev,
                                            unsigned int bar)
 {
-        return pnp_get_resource(dev, IORESOURCE_IO, bar)->end;
+        struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
+
+        if (pnp_resource_valid(res))
+                return res->end;
+        return 0;
 }
 
 static inline unsigned long pnp_port_flags(struct pnp_dev *dev,
                                            unsigned int bar)
 {
-        return pnp_get_resource(dev, IORESOURCE_IO, bar)->flags;
+        struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
+
+        if (pnp_resource_valid(res))
+                return res->flags;
+        return IORESOURCE_IO | IORESOURCE_AUTO;
 }
 
 static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar)
@@ -63,25 +83,41 @@ static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar)
 static inline resource_size_t pnp_port_len(struct pnp_dev *dev,
                                            unsigned int bar)
 {
-        return pnp_resource_len(pnp_get_resource(dev, IORESOURCE_IO, bar));
+        struct resource *res = pnp_get_resource(dev, IORESOURCE_IO, bar);
+
+        if (pnp_resource_valid(res))
+                return pnp_resource_len(res);
+        return 0;
 }
 
 
 static inline resource_size_t pnp_mem_start(struct pnp_dev *dev,
                                             unsigned int bar)
 {
-        return pnp_get_resource(dev, IORESOURCE_MEM, bar)->start;
+        struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
+
+        if (pnp_resource_valid(res))
+                return res->start;
+        return 0;
 }
 
 static inline resource_size_t pnp_mem_end(struct pnp_dev *dev,
                                           unsigned int bar)
 {
-        return pnp_get_resource(dev, IORESOURCE_MEM, bar)->end;
+        struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
+
+        if (pnp_resource_valid(res))
+                return res->end;
+        return 0;
 }
 
 static inline unsigned long pnp_mem_flags(struct pnp_dev *dev, unsigned int bar)
 {
-        return pnp_get_resource(dev, IORESOURCE_MEM, bar)->flags;
+        struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
+
+        if (pnp_resource_valid(res))
+                return res->flags;
+        return IORESOURCE_MEM | IORESOURCE_AUTO;
 }
 
 static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar)
@@ -92,18 +128,30 @@ static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar)
 static inline resource_size_t pnp_mem_len(struct pnp_dev *dev,
                                           unsigned int bar)
 {
-        return pnp_resource_len(pnp_get_resource(dev, IORESOURCE_MEM, bar));
+        struct resource *res = pnp_get_resource(dev, IORESOURCE_MEM, bar);
+
+        if (pnp_resource_valid(res))
+                return pnp_resource_len(res);
+        return 0;
 }
 
 
 static inline resource_size_t pnp_irq(struct pnp_dev *dev, unsigned int bar)
 {
-        return pnp_get_resource(dev, IORESOURCE_IRQ, bar)->start;
+        struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
+
+        if (pnp_resource_valid(res))
+                return res->start;
+        return -1;
 }
 
 static inline unsigned long pnp_irq_flags(struct pnp_dev *dev, unsigned int bar)
 {
-        return pnp_get_resource(dev, IORESOURCE_IRQ, bar)->flags;
+        struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar);
+
+        if (pnp_resource_valid(res))
+                return res->flags;
+        return IORESOURCE_IRQ | IORESOURCE_AUTO;
 }
 
 static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar)
@@ -114,12 +162,20 @@ static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar)
 
 static inline resource_size_t pnp_dma(struct pnp_dev *dev, unsigned int bar)
 {
-        return pnp_get_resource(dev, IORESOURCE_DMA, bar)->start;
+        struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
+
+        if (pnp_resource_valid(res))
+                return res->start;
+        return -1;
 }
 
 static inline unsigned long pnp_dma_flags(struct pnp_dev *dev, unsigned int bar)
 {
-        return pnp_get_resource(dev, IORESOURCE_DMA, bar)->flags;
+        struct resource *res = pnp_get_resource(dev, IORESOURCE_DMA, bar);
+
+        if (pnp_resource_valid(res))
+                return res->flags;
+        return IORESOURCE_DMA | IORESOURCE_AUTO;
 }
 
 static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar)
@@ -128,57 +184,6 @@ static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar)
 }
 
 
-#define PNP_PORT_FLAG_16BITADDR (1<<0)
-#define PNP_PORT_FLAG_FIXED     (1<<1)
-
-struct pnp_port {
-        unsigned short min;     /* min base number */
-        unsigned short max;     /* max base number */
-        unsigned char align;    /* align boundary */
-        unsigned char size;     /* size of range */
-        unsigned char flags;    /* port flags */
-        unsigned char pad;      /* pad */
-        struct pnp_port *next;  /* next port */
-};
-
-#define PNP_IRQ_NR 256
-struct pnp_irq {
-        DECLARE_BITMAP(map, PNP_IRQ_NR);        /* bitmask for IRQ lines */
-        unsigned char flags;    /* IRQ flags */
-        unsigned char pad;      /* pad */
-        struct pnp_irq *next;   /* next IRQ */
-};
-
-struct pnp_dma {
-        unsigned char map;      /* bitmask for DMA channels */
-        unsigned char flags;    /* DMA flags */
-        struct pnp_dma *next;   /* next port */
-};
-
-struct pnp_mem {
-        unsigned int min;       /* min base number */
-        unsigned int max;       /* max base number */
-        unsigned int align;     /* align boundary */
-        unsigned int size;      /* size of range */
-        unsigned char flags;    /* memory flags */
-        unsigned char pad;      /* pad */
-        struct pnp_mem *next;   /* next memory resource */
-};
-
-#define PNP_RES_PRIORITY_PREFERRED      0
-#define PNP_RES_PRIORITY_ACCEPTABLE     1
-#define PNP_RES_PRIORITY_FUNCTIONAL     2
-#define PNP_RES_PRIORITY_INVALID        65535
-
-struct pnp_option {
-        unsigned short priority;        /* priority */
-        struct pnp_port *port;          /* first port */
-        struct pnp_irq *irq;            /* first IRQ */
-        struct pnp_dma *dma;            /* first DMA */
-        struct pnp_mem *mem;            /* first memory resource */
-        struct pnp_option *next;        /* used to chain dependent resources */
-};
-
 /*
  * Device Management
  */
@@ -246,9 +251,9 @@ struct pnp_dev {
 
         int active;
         int capabilities;
-        struct pnp_option *independent;
-        struct pnp_option *dependent;
-        struct pnp_resource_table *res;
+        unsigned int num_dependent_sets;
+        struct list_head resources;
+        struct list_head options;
 
         char name[PNP_NAME_LEN];        /* contains a human-readable name */
         int flags;                      /* used by protocols */
@@ -425,6 +430,8 @@ void pnp_unregister_card_driver(struct pnp_card_driver *drv);
 extern struct list_head pnp_cards;
 
 /* resource management */
+int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t base,
+                        resource_size_t size);
 int pnp_auto_config_dev(struct pnp_dev *dev);
 int pnp_start_dev(struct pnp_dev *dev);
 int pnp_stop_dev(struct pnp_dev *dev);
@@ -452,6 +459,9 @@ static inline int pnp_register_card_driver(struct pnp_card_driver *drv) { return
 static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv) { }
 
 /* resource management */
+static inline int pnp_possible_config(struct pnp_dev *dev, int type,
+                                      resource_size_t base,
+                                      resource_size_t size) { return 0; }
 static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
 static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; }
 static inline int pnp_stop_dev(struct pnp_dev *dev) { return -ENODEV; }
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 21349173d148..ba2f859c6e4f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1494,6 +1494,7 @@ static inline void put_task_struct(struct task_struct *t)
 #define PF_MEMPOLICY    0x10000000      /* Non-default NUMA mempolicy */
 #define PF_MUTEX_TESTER 0x20000000      /* Thread belongs to the rt mutex tester */
 #define PF_FREEZER_SKIP 0x40000000      /* Freezer should not count it as freezeable */
+#define PF_FREEZER_NOSIG 0x80000000     /* Freezer won't send signals to it */
 
 /*
  * Only the _current_ task can read/write to tsk->flags, but other