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-rw-r--r--include/asm-ia64/io.h4
-rw-r--r--include/asm-ia64/pal.h11
-rw-r--r--include/asm-s390/pgtable.h50
-rw-r--r--include/asm-s390/unistd.h3
-rw-r--r--include/linux/pci.h4
-rw-r--r--include/linux/pci_hotplug.h236
6 files changed, 285 insertions, 23 deletions
diff --git a/include/asm-ia64/io.h b/include/asm-ia64/io.h
index 43bfff6c6b87..855c30af72a9 100644
--- a/include/asm-ia64/io.h
+++ b/include/asm-ia64/io.h
@@ -417,6 +417,8 @@ __writeq (unsigned long val, volatile void __iomem *addr)
# define outl_p outl
#endif
+# ifdef __KERNEL__
+
extern void __iomem * ioremap(unsigned long offset, unsigned long size);
extern void __iomem * ioremap_nocache (unsigned long offset, unsigned long size);
@@ -430,8 +432,6 @@ iounmap (volatile void __iomem *addr)
#define dmi_iounmap(x,l) iounmap(x)
#define dmi_alloc(l) kmalloc(l, GFP_ATOMIC)
-# ifdef __KERNEL__
-
/*
* String version of IO memory access ops:
*/
diff --git a/include/asm-ia64/pal.h b/include/asm-ia64/pal.h
index 2c8fd92d0ece..4283ddcc25fb 100644
--- a/include/asm-ia64/pal.h
+++ b/include/asm-ia64/pal.h
@@ -764,7 +764,7 @@ struct ia64_pal_retval {
* (generally 0) MUST be passed. Reserved parameters are not optional
* parameters.
*/
-extern struct ia64_pal_retval ia64_pal_call_static (u64, u64, u64, u64, u64);
+extern struct ia64_pal_retval ia64_pal_call_static (u64, u64, u64, u64);
extern struct ia64_pal_retval ia64_pal_call_stacked (u64, u64, u64, u64);
extern struct ia64_pal_retval ia64_pal_call_phys_static (u64, u64, u64, u64);
extern struct ia64_pal_retval ia64_pal_call_phys_stacked (u64, u64, u64, u64);
@@ -774,14 +774,7 @@ extern void ia64_load_scratch_fpregs (struct ia64_fpreg *);
#define PAL_CALL(iprv,a0,a1,a2,a3) do { \
struct ia64_fpreg fr[6]; \
ia64_save_scratch_fpregs(fr); \
- iprv = ia64_pal_call_static(a0, a1, a2, a3, 0); \
- ia64_load_scratch_fpregs(fr); \
-} while (0)
-
-#define PAL_CALL_IC_OFF(iprv,a0,a1,a2,a3) do { \
- struct ia64_fpreg fr[6]; \
- ia64_save_scratch_fpregs(fr); \
- iprv = ia64_pal_call_static(a0, a1, a2, a3, 1); \
+ iprv = ia64_pal_call_static(a0, a1, a2, a3); \
ia64_load_scratch_fpregs(fr); \
} while (0)
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h
index 519f0a5ff181..36bb6dacf008 100644
--- a/include/asm-s390/pgtable.h
+++ b/include/asm-s390/pgtable.h
@@ -200,18 +200,45 @@ extern char empty_zero_page[PAGE_SIZE];
*/
/* Hardware bits in the page table entry */
-#define _PAGE_RO 0x200 /* HW read-only */
-#define _PAGE_INVALID 0x400 /* HW invalid */
+#define _PAGE_RO 0x200 /* HW read-only bit */
+#define _PAGE_INVALID 0x400 /* HW invalid bit */
+#define _PAGE_SWT 0x001 /* SW pte type bit t */
+#define _PAGE_SWX 0x002 /* SW pte type bit x */
-/* Mask and six different types of pages. */
-#define _PAGE_TYPE_MASK 0x601
+/* Six different types of pages. */
#define _PAGE_TYPE_EMPTY 0x400
#define _PAGE_TYPE_NONE 0x401
-#define _PAGE_TYPE_SWAP 0x600
-#define _PAGE_TYPE_FILE 0x601
+#define _PAGE_TYPE_SWAP 0x403
+#define _PAGE_TYPE_FILE 0x601 /* bit 0x002 is used for offset !! */
#define _PAGE_TYPE_RO 0x200
#define _PAGE_TYPE_RW 0x000
+/*
+ * PTE type bits are rather complicated. handle_pte_fault uses pte_present,
+ * pte_none and pte_file to find out the pte type WITHOUT holding the page
+ * table lock. ptep_clear_flush on the other hand uses ptep_clear_flush to
+ * invalidate a given pte. ipte sets the hw invalid bit and clears all tlbs
+ * for the page. The page table entry is set to _PAGE_TYPE_EMPTY afterwards.
+ * This change is done while holding the lock, but the intermediate step
+ * of a previously valid pte with the hw invalid bit set can be observed by
+ * handle_pte_fault. That makes it necessary that all valid pte types with
+ * the hw invalid bit set must be distinguishable from the four pte types
+ * empty, none, swap and file.
+ *
+ * irxt ipte irxt
+ * _PAGE_TYPE_EMPTY 1000 -> 1000
+ * _PAGE_TYPE_NONE 1001 -> 1001
+ * _PAGE_TYPE_SWAP 1011 -> 1011
+ * _PAGE_TYPE_FILE 11?1 -> 11?1
+ * _PAGE_TYPE_RO 0100 -> 1100
+ * _PAGE_TYPE_RW 0000 -> 1000
+ *
+ * pte_none is true for bits combinations 1000, 1100
+ * pte_present is true for bits combinations 0000, 0010, 0100, 0110, 1001
+ * pte_file is true for bits combinations 1101, 1111
+ * swap pte is 1011 and 0001, 0011, 0101, 0111, 1010 and 1110 are invalid.
+ */
+
#ifndef __s390x__
/* Bits in the segment table entry */
@@ -365,18 +392,21 @@ static inline int pmd_bad(pmd_t pmd)
static inline int pte_none(pte_t pte)
{
- return (pte_val(pte) & _PAGE_TYPE_MASK) == _PAGE_TYPE_EMPTY;
+ return (pte_val(pte) & _PAGE_INVALID) && !(pte_val(pte) & _PAGE_SWT);
}
static inline int pte_present(pte_t pte)
{
- return !(pte_val(pte) & _PAGE_INVALID) ||
- (pte_val(pte) & _PAGE_TYPE_MASK) == _PAGE_TYPE_NONE;
+ unsigned long mask = _PAGE_RO | _PAGE_INVALID | _PAGE_SWT | _PAGE_SWX;
+ return (pte_val(pte) & mask) == _PAGE_TYPE_NONE ||
+ (!(pte_val(pte) & _PAGE_INVALID) &&
+ !(pte_val(pte) & _PAGE_SWT));
}
static inline int pte_file(pte_t pte)
{
- return (pte_val(pte) & _PAGE_TYPE_MASK) == _PAGE_TYPE_FILE;
+ unsigned long mask = _PAGE_RO | _PAGE_INVALID | _PAGE_SWT;
+ return (pte_val(pte) & mask) == _PAGE_TYPE_FILE;
}
#define pte_same(a,b) (pte_val(a) == pte_val(b))
diff --git a/include/asm-s390/unistd.h b/include/asm-s390/unistd.h
index a19238cbcffa..71d3c21b84f0 100644
--- a/include/asm-s390/unistd.h
+++ b/include/asm-s390/unistd.h
@@ -249,8 +249,9 @@
#define __NR_vmsplice 309
/* Number 310 is reserved for new sys_move_pages */
#define __NR_getcpu 311
+#define __NR_epoll_pwait 312
-#define NR_syscalls 312
+#define NR_syscalls 313
/*
* There are some system calls that are not present on 64 bit, some
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 5c604f5fad67..4689e2a699c0 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -443,6 +443,7 @@ extern void pci_remove_bus(struct pci_bus *b);
extern void pci_remove_bus_device(struct pci_dev *dev);
extern void pci_stop_bus_device(struct pci_dev *dev);
void pci_setup_cardbus(struct pci_bus *bus);
+extern void pci_sort_breadthfirst(void);
/* Generic PCI functions exported to card drivers */
@@ -452,13 +453,14 @@ struct pci_dev *pci_find_slot (unsigned int bus, unsigned int devfn);
int pci_find_capability (struct pci_dev *dev, int cap);
int pci_find_next_capability (struct pci_dev *dev, u8 pos, int cap);
int pci_find_ext_capability (struct pci_dev *dev, int cap);
-struct pci_bus * pci_find_next_bus(const struct pci_bus *from);
+struct pci_bus *pci_find_next_bus(const struct pci_bus *from);
struct pci_dev *pci_get_device (unsigned int vendor, unsigned int device, struct pci_dev *from);
struct pci_dev *pci_get_subsys (unsigned int vendor, unsigned int device,
unsigned int ss_vendor, unsigned int ss_device,
struct pci_dev *from);
struct pci_dev *pci_get_slot (struct pci_bus *bus, unsigned int devfn);
+struct pci_dev *pci_get_bus_and_slot (unsigned int bus, unsigned int devfn);
struct pci_dev *pci_get_class (unsigned int class, struct pci_dev *from);
int pci_dev_present(const struct pci_device_id *ids);
diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
new file mode 100644
index 000000000000..a675a05c4091
--- /dev/null
+++ b/include/linux/pci_hotplug.h
@@ -0,0 +1,236 @@
+/*
+ * PCI HotPlug Core Functions
+ *
+ * Copyright (C) 1995,2001 Compaq Computer Corporation
+ * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (C) 2001 IBM Corp.
+ *
+ * All rights reserved.
+ *
+ * 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 Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Send feedback to <kristen.c.accardi@intel.com>
+ *
+ */
+#ifndef _PCI_HOTPLUG_H
+#define _PCI_HOTPLUG_H
+
+
+/* These values come from the PCI Hotplug Spec */
+enum pci_bus_speed {
+ PCI_SPEED_33MHz = 0x00,
+ PCI_SPEED_66MHz = 0x01,
+ PCI_SPEED_66MHz_PCIX = 0x02,
+ PCI_SPEED_100MHz_PCIX = 0x03,
+ PCI_SPEED_133MHz_PCIX = 0x04,
+ PCI_SPEED_66MHz_PCIX_ECC = 0x05,
+ PCI_SPEED_100MHz_PCIX_ECC = 0x06,
+ PCI_SPEED_133MHz_PCIX_ECC = 0x07,
+ PCI_SPEED_66MHz_PCIX_266 = 0x09,
+ PCI_SPEED_100MHz_PCIX_266 = 0x0a,
+ PCI_SPEED_133MHz_PCIX_266 = 0x0b,
+ PCI_SPEED_66MHz_PCIX_533 = 0x11,
+ PCI_SPEED_100MHz_PCIX_533 = 0x12,
+ PCI_SPEED_133MHz_PCIX_533 = 0x13,
+ PCI_SPEED_UNKNOWN = 0xff,
+};
+
+/* These values come from the PCI Express Spec */
+enum pcie_link_width {
+ PCIE_LNK_WIDTH_RESRV = 0x00,
+ PCIE_LNK_X1 = 0x01,
+ PCIE_LNK_X2 = 0x02,
+ PCIE_LNK_X4 = 0x04,
+ PCIE_LNK_X8 = 0x08,
+ PCIE_LNK_X12 = 0x0C,
+ PCIE_LNK_X16 = 0x10,
+ PCIE_LNK_X32 = 0x20,
+ PCIE_LNK_WIDTH_UNKNOWN = 0xFF,
+};
+
+enum pcie_link_speed {
+ PCIE_2PT5GB = 0x14,
+ PCIE_LNK_SPEED_UNKNOWN = 0xFF,
+};
+
+struct hotplug_slot;
+struct hotplug_slot_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct hotplug_slot *, char *);
+ ssize_t (*store)(struct hotplug_slot *, const char *, size_t);
+};
+#define to_hotplug_attr(n) container_of(n, struct hotplug_slot_attribute, attr);
+
+/**
+ * struct hotplug_slot_ops -the callbacks that the hotplug pci core can use
+ * @owner: The module owner of this structure
+ * @enable_slot: Called when the user wants to enable a specific pci slot
+ * @disable_slot: Called when the user wants to disable a specific pci slot
+ * @set_attention_status: Called to set the specific slot's attention LED to
+ * the specified value
+ * @hardware_test: Called to run a specified hardware test on the specified
+ * slot.
+ * @get_power_status: Called to get the current power status of a slot.
+ * If this field is NULL, the value passed in the struct hotplug_slot_info
+ * will be used when this value is requested by a user.
+ * @get_attention_status: Called to get the current attention status of a slot.
+ * If this field is NULL, the value passed in the struct hotplug_slot_info
+ * will be used when this value is requested by a user.
+ * @get_latch_status: Called to get the current latch status of a slot.
+ * If this field is NULL, the value passed in the struct hotplug_slot_info
+ * will be used when this value is requested by a user.
+ * @get_adapter_status: Called to get see if an adapter is present in the slot or not.
+ * If this field is NULL, the value passed in the struct hotplug_slot_info
+ * will be used when this value is requested by a user.
+ * @get_address: Called to get pci address of a slot.
+ * If this field is NULL, the value passed in the struct hotplug_slot_info
+ * will be used when this value is requested by a user.
+ * @get_max_bus_speed: Called to get the max bus speed for a slot.
+ * If this field is NULL, the value passed in the struct hotplug_slot_info
+ * will be used when this value is requested by a user.
+ * @get_cur_bus_speed: Called to get the current bus speed for a slot.
+ * If this field is NULL, the value passed in the struct hotplug_slot_info
+ * will be used when this value is requested by a user.
+ *
+ * The table of function pointers that is passed to the hotplug pci core by a
+ * hotplug pci driver. These functions are called by the hotplug pci core when
+ * the user wants to do something to a specific slot (query it for information,
+ * set an LED, enable / disable power, etc.)
+ */
+struct hotplug_slot_ops {
+ struct module *owner;
+ int (*enable_slot) (struct hotplug_slot *slot);
+ int (*disable_slot) (struct hotplug_slot *slot);
+ int (*set_attention_status) (struct hotplug_slot *slot, u8 value);
+ int (*hardware_test) (struct hotplug_slot *slot, u32 value);
+ int (*get_power_status) (struct hotplug_slot *slot, u8 *value);
+ int (*get_attention_status) (struct hotplug_slot *slot, u8 *value);
+ int (*get_latch_status) (struct hotplug_slot *slot, u8 *value);
+ int (*get_adapter_status) (struct hotplug_slot *slot, u8 *value);
+ int (*get_address) (struct hotplug_slot *slot, u32 *value);
+ int (*get_max_bus_speed) (struct hotplug_slot *slot, enum pci_bus_speed *value);
+ int (*get_cur_bus_speed) (struct hotplug_slot *slot, enum pci_bus_speed *value);
+};
+
+/**
+ * struct hotplug_slot_info - used to notify the hotplug pci core of the state of the slot
+ * @power: if power is enabled or not (1/0)
+ * @attention_status: if the attention light is enabled or not (1/0)
+ * @latch_status: if the latch (if any) is open or closed (1/0)
+ * @adapter_present: if there is a pci board present in the slot or not (1/0)
+ * @address: (domain << 16 | bus << 8 | dev)
+ *
+ * Used to notify the hotplug pci core of the status of a specific slot.
+ */
+struct hotplug_slot_info {
+ u8 power_status;
+ u8 attention_status;
+ u8 latch_status;
+ u8 adapter_status;
+ u32 address;
+ enum pci_bus_speed max_bus_speed;
+ enum pci_bus_speed cur_bus_speed;
+};
+
+/**
+ * struct hotplug_slot - used to register a physical slot with the hotplug pci core
+ * @name: the name of the slot being registered. This string must
+ * be unique amoung slots registered on this system.
+ * @ops: pointer to the &struct hotplug_slot_ops to be used for this slot
+ * @info: pointer to the &struct hotplug_slot_info for the initial values for
+ * this slot.
+ * @release: called during pci_hp_deregister to free memory allocated in a
+ * hotplug_slot structure.
+ * @private: used by the hotplug pci controller driver to store whatever it
+ * needs.
+ */
+struct hotplug_slot {
+ char *name;
+ struct hotplug_slot_ops *ops;
+ struct hotplug_slot_info *info;
+ void (*release) (struct hotplug_slot *slot);
+ void *private;
+
+ /* Variables below this are for use only by the hotplug pci core. */
+ struct list_head slot_list;
+ struct kobject kobj;
+};
+#define to_hotplug_slot(n) container_of(n, struct hotplug_slot, kobj)
+
+extern int pci_hp_register (struct hotplug_slot *slot);
+extern int pci_hp_deregister (struct hotplug_slot *slot);
+extern int __must_check pci_hp_change_slot_info (struct hotplug_slot *slot,
+ struct hotplug_slot_info *info);
+extern struct subsystem pci_hotplug_slots_subsys;
+
+/* PCI Setting Record (Type 0) */
+struct hpp_type0 {
+ u32 revision;
+ u8 cache_line_size;
+ u8 latency_timer;
+ u8 enable_serr;
+ u8 enable_perr;
+};
+
+/* PCI-X Setting Record (Type 1) */
+struct hpp_type1 {
+ u32 revision;
+ u8 max_mem_read;
+ u8 avg_max_split;
+ u16 tot_max_split;
+};
+
+/* PCI Express Setting Record (Type 2) */
+struct hpp_type2 {
+ u32 revision;
+ u32 unc_err_mask_and;
+ u32 unc_err_mask_or;
+ u32 unc_err_sever_and;
+ u32 unc_err_sever_or;
+ u32 cor_err_mask_and;
+ u32 cor_err_mask_or;
+ u32 adv_err_cap_and;
+ u32 adv_err_cap_or;
+ u16 pci_exp_devctl_and;
+ u16 pci_exp_devctl_or;
+ u16 pci_exp_lnkctl_and;
+ u16 pci_exp_lnkctl_or;
+ u32 sec_unc_err_sever_and;
+ u32 sec_unc_err_sever_or;
+ u32 sec_unc_err_mask_and;
+ u32 sec_unc_err_mask_or;
+};
+
+struct hotplug_params {
+ struct hpp_type0 *t0; /* Type0: NULL if not available */
+ struct hpp_type1 *t1; /* Type1: NULL if not available */
+ struct hpp_type2 *t2; /* Type2: NULL if not available */
+ struct hpp_type0 type0_data;
+ struct hpp_type1 type1_data;
+ struct hpp_type2 type2_data;
+};
+
+#ifdef CONFIG_ACPI
+#include <acpi/acpi.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/actypes.h>
+extern acpi_status acpi_run_oshp(acpi_handle handle);
+extern acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus,
+ struct hotplug_params *hpp);
+int acpi_root_bridge(acpi_handle handle);
+#endif
+#endif
+
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