Commit Graph

26 Commits

Author SHA1 Message Date
Suresh Siddha
7237d3de78 x86, ACPI: add support for x2apic ACPI extensions
All logical processors with APIC ID values of 255 and greater will have their
APIC reported through Processor X2APIC structure (type-9 entry type) and all
logical processors with APIC ID less than 255 will have their APIC reported
through legacy Processor Local APIC (type-0 entry type) only. This is the
same case even for NMI structure reporting.
    
The Processor X2APIC Affinity structure provides the association between the
X2APIC ID of a logical processor and the proximity domain to which the logical
processor belongs.
    
For OSPM, Procssor IDs outside the 0-254 range are to be declared as Device()
objects in the ACPI namespace.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-03 20:08:12 -04:00
Cyrill Gorcunov
27ce341983 acpi: check for pxm_to_node_map overflow
It is hardly (if ever) possible but in case of broken _PXM entry we could
reach out of pxm_to_node_map array bounds in acpi_map_pxm_to_node() call.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-16 00:35:30 -04:00
Lin Ming
ea7e96e0f2 ACPI: remove private acpica headers from driver files
External driver files should not include any private acpica headers.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-12-31 01:15:22 -05:00
Matthew Wilcox
27663c5855 ACPI: Change acpi_evaluate_integer to support 64-bit on 32-bit kernels
As of version 2.0, ACPI can return 64-bit integers.  The current
acpi_evaluate_integer only supports 64-bit integers on 64-bit platforms.
Change the argument to take a pointer to an acpi_integer so we support
64-bit integers on all platforms.

lenb: replaced use of "acpi_integer" with "unsigned long long"
lenb: fixed bug in acpi_thermal_trips_update()

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-11 02:47:33 -04:00
Bob Moore
19d0cfe9dd ACPICA: Update DMAR and SRAT table definitions
Synchronized tables with current specifications.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
2008-07-16 23:27:04 +02:00
Fenghua Yu
39b8931b5c ACPI: handle invalid ACPI SLIT table
This is a SLIT sanity checking patch.  It moves slit_valid() function to
generic ACPI code and does sanity checking for both x86 and ia64.  It sets up
node_distance with LOCAL_DISTANCE and REMOTE_DISTANCE when hitting invalid
SLIT table on ia64.  It also cleans up unused variable localities in
acpi_parse_slit() on x86.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-11 19:13:46 -04:00
Adrian Bunk
e5685b9d35 ACPI: misc cleanups
This patch contains the following possible cleanups:
    - make the following needlessly global code static:
      - drivers/acpi/bay.c:dev_attr_eject
      - drivers/acpi/bay.c:dev_attr_present
      - drivers/acpi/dock.c:dev_attr_docked
      - drivers/acpi/dock.c:dev_attr_flags
      - drivers/acpi/dock.c:dev_attr_uid
      - drivers/acpi/dock.c:dev_attr_undock
      - drivers/acpi/pci_bind.c:acpi_pci_unbind()
      - drivers/acpi/pci_link.c:acpi_link_lock
      - drivers/acpi/sbs.c:acpi_sbs_callback()
      - drivers/acpi/sbshc.c:acpi_smbus_transaction()
      - drivers/acpi/sleep/main.c:acpi_sleep_prepare()
    - #if 0 the following unused global functions:
      - drivers/acpi/numa.c:acpi_unmap_pxm_to_node()
    - remove the following unused EXPORT_SYMBOL's:
      - acpi_register_gsi
      - acpi_unregister_gsi
      - acpi_strict
      - acpi_bus_receive_event
      - register_acpi_bus_type
      - unregister_acpi_bus_type
      - acpi_os_printf
      - acpi_os_sleep
      - acpi_os_stall
      - acpi_os_read_pci_configuration
      - acpi_os_create_semaphore
      - acpi_os_delete_semaphore
      - acpi_os_wait_semaphore
      - acpi_os_signal_semaphore
      - acpi_os_signal
      - acpi_pci_irq_enable
      - acpi_get_pxm

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07 03:33:23 -05:00
Jan Beulich
ffada8913e ACPI: fix modpost warnings
for sn2_defconfig:

WARNING: vmlinux.o(.text+0x4b8601): Section mismatch: reference to .init.data:node_to_pxm_map (between '__acpi_map_pxm_to_node' and 'acpi_get_pxm')
WARNING: vmlinux.o(.text+0x4b8741): Section mismatch: reference to .init.data:pxm_to_node_map (between 'acpi_map_pxm_to_node' and 'acpi_get_node')

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-12-13 17:50:09 -05:00
David Rientjes
3484d79813 x86_64: fake pxm-to-node mapping for fake numa
For NUMA emulation, our SLIT should represent the true NUMA topology of the
system but our proximity domain to node ID mapping needs to reflect the
emulated state.

When NUMA emulation has successfully setup fake nodes on the system, a new
function, acpi_fake_nodes() is called.  This function determines the proximity
domain (_PXM) for each true node found on the system.  It then finds which
emulated nodes have been allocated on this true node as determined by its
starting address.  The node ID to PXM mapping is changed so that each fake
node ID points to the PXM of the true node that it is located on.

If the machine failed to register a SLIT, then we assume there is no special
requirement for emulated node affinity so we use the default LOCAL_DISTANCE,
which is newly exported to this code, as our measurement if the emulated nodes
appear in the same PXM.  Otherwise, we use REMOTE_DISTANCE.

PXM_INVAL and NID_INVAL are also exported to the ACPI header file so that we
can compare node_to_pxm() results in generic code (in this case, the SRAT
code).

Cc: Len Brown <lenb@kernel.org>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:10 -07:00
David Rientjes
ae2c6dcf90 x86_64: various cleanups in NUMA scan node
In acpi_scan_nodes(), we immediately return -1 if acpi_numa <= 0, meaning
we haven't detected any underlying ACPI topology or we have explicitly
disabled its use from the command-line with numa=noacpi.

acpi_table_print_srat_entry() and acpi_table_parse_srat() are only
referenced within drivers/acpi/numa.c, so we can mark them as static and
remove their prototypes from the header file.

Likewise, pxm_to_node_map[] and node_to_pxm_map[] are only used within
drivers/acpi/numa.c, so we mark them as static and remove their externs
from the header file.

The automatic 'result' variable is unused in acpi_numa_init(), so it's
removed.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 18:37:08 -07:00
Luck, Tony
8ff6f48d99 ACPI: Section mismatch ... acpi_map_pxm_to_node
Last of the "Section mismatch" errors from ia64 builds! acpi_map_pxm_to_node()
is defined with attribute __cpuinit, but is called by "normal" kernel functions
acpi_getnode() and acpi_map_cpu2node().

Commit f363d16fbb moved the data structures on
which this routine operates from __cpuinitdata to regular memory, so this
routine can also move out of init space.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-06-02 00:20:07 -04:00
Aaron Durbin
f363d16fbb acpi: fix potential call to a freed memory section.
Strip __cpuinit[data] from Node <-> PXM routines and supporting data
structures.  Also make pxm_to_node_map and node_to_pxm_map local to the
numa acpi module.

This fixes a bug triggered by the following conditions:
- boot on a machine with a SLIT table defined
- kernel is configured w/ CONFIG_HOTPLUG_CPU=n
- cat /sys/devices/system/node/node*/distance
This will cause an oops by calling into a freed memory section.

In particular, on x86_64, __node_distance calls node_to_pxm().

Signed-off-by: Aaron Durbin <adurbin@google.com>
Cc: Len Brown <lenb@kernel.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-17 05:23:04 -07:00
Yasunori Goto
7e81ab9d3d Fix unnecesary meminit
This is to fix unnecessary __meminit definition.  These are exported for
kernel modules.

I compiled on ia64/x86-64 with memory hotplug on/off.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 20:41:14 -07:00
Yasunori Goto
a3142c8e1d Fix section mismatch of memory hotplug related code.
This is to fix many section mismatches of code related to memory hotplug.
I checked compile with memory hotplug on/off on ia64 and x86-64 box.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:14:57 -07:00
Len Brown
6eb87fed52 ACPI: acpi_table_parse_madt_family() is not MADT specific
acpi_table_parse_madt_family() is also used to parse SRAT entries.
So re-name it to acpi_table_parse_entries(), and re-name the
madt-specific variables within it accordingly.

cosmetic only.

Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-13 02:58:52 -05:00
Len Brown
5a8765a84c ACPI: acpi_madt_entry_handler() is not MADT specific
acpi_madt_entry_handler() is also used for the SRAT,
so re-name it acpi_table_entry_handler().

cosmetic only.

Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-13 02:58:52 -05:00
Len Brown
7f8f97c3cc ACPI: acpi_table_parse() now returns success/fail, not count
Returning count for tables that are supposed to be unique
was useless and confusing.

Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-13 02:58:52 -05:00
Len Brown
f52fd66d2e ACPI: clean up ACPI_MODULE_NAME() use
cosmetic only

Make "module name" actually match the file name.
Invoke with ';' as leaving it off confuses Lindent and gcc doesn't care.
Fix indentation where Lindent did get confused.

Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-12 22:42:12 -05:00
Alexey Starikovskiy
15a58ed121 ACPICA: Remove duplicate table definitions (non-conflicting), cont
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 21:14:29 -05:00
Jan Engelhardt
50dd096973 ACPI: Remove unnecessary from/to-void* and to-void casts in drivers/acpi
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-10-14 01:51:07 -04:00
Len Brown
635227ee89 ACPI: remove function tracing macros from drivers/acpi/*.c
a few invocations appeared due to the SBS and other patches.

Signed-off-by: Len Brown <len.brown@intel.com>
2006-07-01 16:48:23 -04:00
Jörn Engel
6ab3d5624e Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 19:25:36 +02:00
Yasunori Goto
1e3590e2e4 [PATCH] pgdat allocation for new node add (get node id by acpi)
This is to find node id from acpi's handle of memory_device in DSDT.  _PXM for
the new node can be found by acpi_get_pxm() by using new memory's handle.  So,
node id can be found by pxm_to_nid_map[].

  This patch becomes simpler than v2 of node hot-add patch.
  Because old add_memory() function doesn't have node id parameter.
  So, kernel must find its handle by physical address via DSDT again.
  But, v3 just give node id to add_memory() now.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:36 -07:00
Yasunori Goto
762834e8bf [PATCH] Unify pxm_to_node() and node_to_pxm()
Consolidate the various arch-specific implementations of pxm_to_node() and
node_to_pxm() into a single generic version.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 07:42:48 -07:00
Len Brown
4be44fcd3b [ACPI] Lindent all ACPI files
Signed-off-by: Len Brown <len.brown@intel.com>
2005-08-05 00:45:14 -04:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00