| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, UV, BAU: Extend for more than 16 cpus per socket
x86, UV: Fix the effect of extra bits in the hub nodeid register
x86, UV: Add common uv_early_read_mmr() function for reading MMRs
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-security-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
module: Move RO/NX module protection to after ftrace module update
x86: Resume trampoline must be executable
x86: Add RO/NX protection for loadable kernel modules
x86: Add NX protection for kernel data
x86: Fix improper large page preservation
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, earlyprintk: Move mrst early console to platform/ and fix a typo
x86, apbt: Setup affinity for apb timers acting as per-cpu timer
ce4100: Add errata fixes for UART on CE4100
x86: platform: Move iris to x86/platform where it belongs
x86, mrst: Check platform_device_register() return code
x86/platform: Add Eurobraille/Iris power off support
x86, mrst: Add explanation for using 1960 as the year offset for vrtc
x86, mrst: Fix dependencies of "select INTEL_SCU_IPC"
x86, mrst: The shutdown for MRST requires the SCU IPC mechanism
x86: Ce4100: Add reboot_fixup() for CE4100
ce4100: Add PCI register emulation for CE4100
x86: Add CE4100 platform support
x86: mrst: Set vRTC's IRQ to level trigger type
x86: mrst: Add audio driver bindings
rtc: Add drivers/rtc/rtc-mrst.c
x86: mrst: Add vrtc driver which serves as a wall clock device
x86: mrst: Add Moorestown specific reboot/shutdown support
x86: mrst: Parse SFI timer table for all timer configs
x86/mrst: Add SFI platform device parsing code
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, microcode, AMD: Cleanup code a bit
x86, microcode, AMD: Replace vmalloc+memset with vzalloc
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Fix APIC ID sizing bug on larger systems, clean up MAX_APICS confusion
x86, acpi: Parse all SRAT cpu entries even above the cpu number limitation
x86, acpi: Add MAX_LOCAL_APIC for 32bit
x86: io_apic: Split setup_ioapic_ids_from_mpc()
x86: io_apic: Fix CONFIG_X86_IO_APIC=n breakage
x86: apic: Move probe_nr_irqs_gsi() into ioapic_init_mappings()
x86: Allow platforms to force enable apic
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, cacheinfo: Cleanup L3 cache index disable support
x86, amd-nb: Cleanup AMD northbridge caching code
x86, amd-nb: Complete the rename of AMD NB and related code
|
|
Found one x2apic pre-enabled system, x2apic_mode suddenly get
corrupted after register some cpus, when compiled
CONFIG_NR_CPUS=255 instead of 512.
It turns out that generic_processor_info() ==> phyid_set(apicid,
phys_cpu_present_map) causes the problem.
phys_cpu_present_map is sized by MAX_APICS bits, and pre-enabled
system some cpus have an apic id > 255.
The variable after phys_cpu_present_map may get corrupted
silently:
ffffffff828e8420 B phys_cpu_present_map
ffffffff828e8440 B apic_verbosity
ffffffff828e8444 B local_apic_timer_c2_ok
ffffffff828e8448 B disable_apic
ffffffff828e844c B x2apic_mode
ffffffff828e8450 B x2apic_disabled
ffffffff828e8454 B num_processors
...
Actually phys_cpu_present_map is referenced via apic id, instead
index. We should use MAX_LOCAL_APIC instead MAX_APICS.
For 64-bit it will be 32768 in all cases. BSS will increase by 4k bytes
on 64-bit:
text data bss dec filename
21696943 4193748 12787712 38678403 vmlinux.before
21696943 4193748 12791808 38682499 vmlinux.after
No change on 32bit.
Finally we can remove MAX_APCIS that was rather confusing.
Signed-off-by: Yinghai Lu <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
|
|
Conflicts:
arch/x86/include/asm/io_apic.h
Merge reason: move to a fresh -rc, resolve the conflict.
Signed-off-by: Ingo Molnar <[email protected]>
|
|
Fix a hard-coded limit of a maximum of 16 cpu's per socket.
The UV Broadcast Assist Unit code initializes by scanning the
cpu topology of the system and assigning a master cpu for each
socket and UV hub. That scan had an assumption of a limit of 16
cpus per socket. With Westmere we are going over that limit.
The UV hub hardware will allow up to 32.
If the scan finds the system has gone over that limit it returns
an error and we print a warning and fall back to doing TLB
shootdowns without the BAU.
Signed-off-by: Cliff Wickman <[email protected]>
Cc: <[email protected]> # .37.x
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
|
|
This patch adds code to therm_throt.c to notify core thermal threshold
events. These thresholds are supported by the IA32_THERM_INTERRUPT register.
The status/log for the same is monitored using the IA32_THERM_STATUS register.
The necessary #defines are in msr-index.h. A call back is added to mce.h, to
further notify the thermal stack, about the threshold events.
Signed-off-by: Durgadoss R <[email protected]>
LKML-Reference: <D6D887BA8C9DFF48B5233887EF04654105C1251710@bgsmsx502.gar.corp.intel.com>
Signed-off-by: H. Peter Anvin <[email protected]>
|
|
Replace all uses of current_cpu_data with this_cpu operations on the
per cpu structure cpu_info. The scala accesses are replaced with the
matching this_cpu ops which results in smaller and more efficient
code.
In the long run, it might be a good idea to remove cpu_data() macro
too and use per_cpu macro directly.
tj: updated description
Cc: Yinghai Lu <[email protected]>
Cc: Ingo Molnar <[email protected]>
Acked-by: H. Peter Anvin <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
|
|
Go through x86 code and replace __get_cpu_var and get_cpu_var
instances that refer to a scalar and are not used for address
determinations.
Cc: Yinghai Lu <[email protected]>
Cc: Ingo Molnar <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Acked-by: "H. Peter Anvin" <[email protected]>
Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into perf/core
|
|
Introduce init_memory_mapping_high(), and use it with 64bit.
It will go with every memory segment above 4g to create page table to the
memory range itself.
before this patch all page tables was on one node.
with this patch, one RED-PEN is killed
debug out for 8 sockets system after patch
[ 0.000000] initial memory mapped : 0 - 20000000
[ 0.000000] init_memory_mapping: [0x00000000000000-0x0000007f74ffff]
[ 0.000000] 0000000000 - 007f600000 page 2M
[ 0.000000] 007f600000 - 007f750000 page 4k
[ 0.000000] kernel direct mapping tables up to 7f750000 @ [0x7f74c000-0x7f74ffff]
[ 0.000000] RAMDISK: 7bc84000 - 7f745000
....
[ 0.000000] Adding active range (0, 0x10, 0x95) 0 entries of 3200 used
[ 0.000000] Adding active range (0, 0x100, 0x7f750) 1 entries of 3200 used
[ 0.000000] Adding active range (0, 0x100000, 0x1080000) 2 entries of 3200 used
[ 0.000000] Adding active range (1, 0x1080000, 0x2080000) 3 entries of 3200 used
[ 0.000000] Adding active range (2, 0x2080000, 0x3080000) 4 entries of 3200 used
[ 0.000000] Adding active range (3, 0x3080000, 0x4080000) 5 entries of 3200 used
[ 0.000000] Adding active range (4, 0x4080000, 0x5080000) 6 entries of 3200 used
[ 0.000000] Adding active range (5, 0x5080000, 0x6080000) 7 entries of 3200 used
[ 0.000000] Adding active range (6, 0x6080000, 0x7080000) 8 entries of 3200 used
[ 0.000000] Adding active range (7, 0x7080000, 0x8080000) 9 entries of 3200 used
[ 0.000000] init_memory_mapping: [0x00000100000000-0x0000107fffffff]
[ 0.000000] 0100000000 - 1080000000 page 2M
[ 0.000000] kernel direct mapping tables up to 1080000000 @ [0x107ffbd000-0x107fffffff]
[ 0.000000] memblock_x86_reserve_range: [0x107ffc2000-0x107fffffff] PGTABLE
[ 0.000000] init_memory_mapping: [0x00001080000000-0x0000207fffffff]
[ 0.000000] 1080000000 - 2080000000 page 2M
[ 0.000000] kernel direct mapping tables up to 2080000000 @ [0x207ff7d000-0x207fffffff]
[ 0.000000] memblock_x86_reserve_range: [0x207ffc0000-0x207fffffff] PGTABLE
[ 0.000000] init_memory_mapping: [0x00002080000000-0x0000307fffffff]
[ 0.000000] 2080000000 - 3080000000 page 2M
[ 0.000000] kernel direct mapping tables up to 3080000000 @ [0x307ff3d000-0x307fffffff]
[ 0.000000] memblock_x86_reserve_range: [0x307ffc0000-0x307fffffff] PGTABLE
[ 0.000000] init_memory_mapping: [0x00003080000000-0x0000407fffffff]
[ 0.000000] 3080000000 - 4080000000 page 2M
[ 0.000000] kernel direct mapping tables up to 4080000000 @ [0x407fefd000-0x407fffffff]
[ 0.000000] memblock_x86_reserve_range: [0x407ffc0000-0x407fffffff] PGTABLE
[ 0.000000] init_memory_mapping: [0x00004080000000-0x0000507fffffff]
[ 0.000000] 4080000000 - 5080000000 page 2M
[ 0.000000] kernel direct mapping tables up to 5080000000 @ [0x507febd000-0x507fffffff]
[ 0.000000] memblock_x86_reserve_range: [0x507ffc0000-0x507fffffff] PGTABLE
[ 0.000000] init_memory_mapping: [0x00005080000000-0x0000607fffffff]
[ 0.000000] 5080000000 - 6080000000 page 2M
[ 0.000000] kernel direct mapping tables up to 6080000000 @ [0x607fe7d000-0x607fffffff]
[ 0.000000] memblock_x86_reserve_range: [0x607ffc0000-0x607fffffff] PGTABLE
[ 0.000000] init_memory_mapping: [0x00006080000000-0x0000707fffffff]
[ 0.000000] 6080000000 - 7080000000 page 2M
[ 0.000000] kernel direct mapping tables up to 7080000000 @ [0x707fe3d000-0x707fffffff]
[ 0.000000] memblock_x86_reserve_range: [0x707ffc0000-0x707fffffff] PGTABLE
[ 0.000000] init_memory_mapping: [0x00007080000000-0x0000807fffffff]
[ 0.000000] 7080000000 - 8080000000 page 2M
[ 0.000000] kernel direct mapping tables up to 8080000000 @ [0x807fdfc000-0x807fffffff]
[ 0.000000] memblock_x86_reserve_range: [0x807ffbf000-0x807fffffff] PGTABLE
[ 0.000000] Initmem setup node 0 [0000000000000000-000000107fffffff]
[ 0.000000] NODE_DATA [0x0000107ffbd000-0x0000107ffc1fff]
[ 0.000000] Initmem setup node 1 [0000001080000000-000000207fffffff]
[ 0.000000] NODE_DATA [0x0000207ffbb000-0x0000207ffbffff]
[ 0.000000] Initmem setup node 2 [0000002080000000-000000307fffffff]
[ 0.000000] NODE_DATA [0x0000307ffbb000-0x0000307ffbffff]
[ 0.000000] Initmem setup node 3 [0000003080000000-000000407fffffff]
[ 0.000000] NODE_DATA [0x0000407ffbb000-0x0000407ffbffff]
[ 0.000000] Initmem setup node 4 [0000004080000000-000000507fffffff]
[ 0.000000] NODE_DATA [0x0000507ffbb000-0x0000507ffbffff]
[ 0.000000] Initmem setup node 5 [0000005080000000-000000607fffffff]
[ 0.000000] NODE_DATA [0x0000607ffbb000-0x0000607ffbffff]
[ 0.000000] Initmem setup node 6 [0000006080000000-000000707fffffff]
[ 0.000000] NODE_DATA [0x0000707ffbb000-0x0000707ffbffff]
[ 0.000000] Initmem setup node 7 [0000007080000000-000000807fffffff]
[ 0.000000] NODE_DATA [0x0000807ffba000-0x0000807ffbefff]
Signed-off-by: Yinghai Lu <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
|
|
Move it into head file. to prepare use it in other files.
[ hpa: added missing <linux/types.h> and changed type to phys_addr_t. ]
Signed-off-by: Yinghai Lu <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
|
|
|
|
halt() should use native_halt()
safe_halt() uses native_safe_halt()
If CONFIG_PARAVIRT=y, halt() is defined in arch/x86/include/asm/paravirt.h as
static inline void halt(void)
{
PVOP_VCALL0(pv_irq_ops.safe_halt);
}
Otherwise (no CONFIG_PARAVIRT) halt() in arch/x86/include/asm/irqflags.h is
static inline void halt(void)
{
native_halt();
}
So it looks to me like the CONFIG_PARAVIRT case of using native_safe_halt()
for a halt() is an oversight.
Am I missing something?
It probably hasn't shown up as a problem because the local apic is disabled
on a shutdown or restart. But if we disable interrupts and call halt()
we shouldn't expect that the halt() will re-enable interrupts.
Signed-off-by: Cliff Wickman <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
|
|
NUMA boot code assumes that physical node ids start at 0, but the DIMMs
that the apic id represents may not be reachable. If this is the case,
node 0 is never online and cpus never end up getting appropriately
assigned to a node. This causes the cpumask of all online nodes to be
empty and machines crash with kernel code assuming online nodes have
valid cpus.
The fix is to appropriately map all the address ranges for physical nodes
and ensure the cpu to node mapping function checks all possible nodes (up
to MAX_NUMNODES) instead of simply checking nodes 0-N, where N is the
number of physical nodes, for valid address ranges.
This requires no longer "compressing" the address ranges of nodes in the
physical node map from 0-N, but rather leave indices in physnodes[] to
represent the actual node id of the physical node. Accordingly, the
topology exported by both amd_get_nodes() and acpi_get_nodes() no longer
must return the number of nodes to iterate through; all such iterations
will now be to MAX_NUMNODES.
This change also passes the end address of system RAM (which may be
different from normal operation if mem= is specified on the command line)
before the physnodes[] array is populated. ACPI parsed nodes are
truncated to fit within the address range that respect the mem=
boundaries and even some physical nodes may become unreachable in such
cases.
When NUMA emulation does succeed, any apicid to node mapping that exists
for unreachable nodes are given default values so that proximity domains
can still be assigned. This is important for node_distance() to
function as desired.
Signed-off-by: David Rientjes <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
|
|
This patch adds the equivalent of acpi_fake_nodes() for AMD Northbridge
platforms. The goal is to fake the apicid-to-node mappings for NUMA
emulation so the physical topology of the machine is correctly maintained
within the kernel.
This change also fakes proximity domains for both ACPI and k8 code so the
physical distance between emulated nodes is maintained via
node_distance(). This exports the correct distances via
/sys/devices/system/node/.../distance based on the underlying topology.
A new helper function, fake_physnodes(), is introduced to correctly
invoke the correct NUMA code to fake these two mappings based on the
system type. If there is no underlying NUMA configuration, all cpus are
mapped to node 0 for local distance.
Since acpi_fake_nodes() is no longer called with CONFIG_ACPI_NUMA, it's
prototype can be removed from the header file for such a configuration.
Signed-off-by: David Rientjes <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
|
|
Both acpi_get_nodes() and amd_get_nodes() are only necessary when
CONFIG_NUMA_EMU is enabled, so avoid compiling them when the option is
disabled.
Signed-off-by: David Rientjes <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
|
|
This patch changes the minimum fake node size from 64MB to 32MB so it is
possible to test NUMA code at a greater scale on smaller machines
(64 nodes on a 2G machine, 1024 nodes on 32G machine with
CONFIG_NODES_SHIFT=10).
Signed-off-by: David Rientjes <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
|
|
We should use MAX_LOCAL_APIC for max apic ids and MAX_APICS as number
of local apics.
Also apic_version[] array should use MAX_LOCAL_APICs.
Signed-off-by: Yinghai Lu <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
|
|
|
|
CONFIG_HARDLOCKUP_DETECTOR
The x86 arch has shifted its use of the nmi_watchdog from a
local implementation to the global one provide by
kernel/watchdog.c. This shift has caused a whole bunch of
compile problems under different config options. I attempt to
simplify things with the patch below.
In order to simplify things, I had to come to terms with the
meaning of two terms ARCH_HAS_NMI_WATCHDOG and
CONFIG_HARDLOCKUP_DETECTOR. Basically they mean the same thing,
the former on a local level and the latter on a global level.
With the old x86 nmi watchdog gone, there is no need to rely on
defining the ARCH_HAS_NMI_WATCHDOG variable because it doesn't
make sense any more. x86 will now use the global
implementation.
The changes below do a few things. First it changes the few
places that relied on ARCH_HAS_NMI_WATCHDOG to use
CONFIG_X86_LOCAL_APIC (the former was an alias for the latter
anyway, so nothing unusual here). Those pieces of code were
relying more on local apic functionality the nmi watchdog
functionality, so the change should make sense.
Second, I removed the x86 implementation of
touch_nmi_watchdog(). It isn't need now, instead x86 will rely
on kernel/watchdog.c's implementation.
Third, I removed the #define ARCH_HAS_NMI_WATCHDOG itself from
x86. And tweaked the include/linux/nmi.h file to tell users to
look for an externally defined touch_nmi_watchdog in the case of
ARCH_HAS_NMI_WATCHDOG _or_ CONFIG_HARDLOCKUP_DETECTOR. This
changes removes some of the ugliness in that file.
Finally, I added a Kconfig dependency for
CONFIG_HARDLOCKUP_DETECTOR that said you can't have
ARCH_HAS_NMI_WATCHDOG _and_ CONFIG_HARDLOCKUP_DETECTOR. You can
only have one nmi_watchdog.
Tested with
ARCH=i386: allnoconfig, defconfig, allyesconfig, (various broken
configs) ARCH=x86_64: allnoconfig, defconfig, allyesconfig,
(various broken configs)
Hopefully, after this patch I won't get any more compile broken
emails. :-)
v3:
changed a couple of 'linux/nmi.h' -> 'asm/nmi.h' to pick-up correct function
prototypes when CONFIG_HARDLOCKUP_DETECTOR is not set.
Signed-off-by: Don Zickus <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
|
|
Conflicts:
MAINTAINERS
arch/arm/mach-omap2/pm24xx.c
drivers/scsi/bfa/bfa_fcpim.c
Needed to update to apply fixes for which the old branch was too
outdated.
|
|
Merge reason: Pick up the latest -rc.
Signed-off-by: Ingo Molnar <[email protected]>
|
|
This patch adds support for up to 6 hardware counters for AMD family
15h cpus. There is a new MSR range for hardware counters beginning at
MSRC001_0200 Performance Event Select (PERF_CTL0).
Signed-off-by: Robert Richter <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
x86: avoid high BIOS area when allocating address space
x86: avoid E820 regions when allocating address space
x86: avoid low BIOS area when allocating address space
resources: add arch hook for preventing allocation in reserved areas
Revert "resources: support allocating space within a region from the top down"
Revert "PCI: allocate bus resources from the top down"
Revert "x86/PCI: allocate space from the end of a region, not the beginning"
Revert "x86: allocate space within a region top-down"
Revert "PCI: fix pci_bus_alloc_resource() hang, prefer positive decode"
PCI: Update MCP55 quirk to not affect non HyperTransport variants
|
|
Use cmpxchg instead of xchg to realize this_cpu_xchg.
xchg will cause LOCK overhead since LOCK is always implied but cmpxchg
will not.
Baselines:
xchg() = 18 cycles (no segment prefix, LOCK semantics)
__this_cpu_xchg = 1 cycle
(simulated using this_cpu_read/write, two prefixes. Looks like the
cpu can use loop optimization to get rid of most of the overhead)
Cycles before:
this_cpu_xchg = 37 cycles (segment prefix and LOCK (implied by xchg))
After:
this_cpu_xchg = 11 cycle (using cmpxchg without lock semantics)
Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
|
|
Provide support as far as the hardware capabilities of the x86 cpus
allow.
Define CONFIG_CMPXCHG_LOCAL in Kconfig.cpu to allow core code to test for
fast cpuops implementations.
V1->V2:
- Take out the definition for this_cpu_cmpxchg_8 and move it into
a separate patch.
tj: - Reordered ops to better follow this_cpu_* organization.
- Renamed macro temp variables similar to their existing
neighbours.
Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
|
|
This prevents allocation of the last 2MB before 4GB.
The experiment described here shows Windows 7 ignoring the last 1MB:
https://bugzilla.kernel.org/show_bug.cgi?id=23542#c27
This patch ignores the top 2MB instead of just 1MB because H. Peter Anvin
says "There will be ROM at the top of the 32-bit address space; it's a fact
of the architecture, and on at least older systems it was common to have a
shadow 1 MiB below."
Acked-by: H. Peter Anvin <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Signed-off-by: Jesse Barnes <[email protected]>
|
|
- include/linux/percpu.h: this_cpu_add_return() and friends were
located next to __this_cpu_add_return(). However, the overall
organization is to first group by preemption safeness. Relocate
this_cpu_add_return() and friends to preemption-safe area.
- arch/x86/include/asm/percpu.h: Relocate percpu_add_return_op() after
other more basic operations. Relocate [__]this_cpu_add_return_8()
so that they're first grouped by preemption safeness.
Signed-off-by: Tejun Heo <[email protected]>
Cc: Christoph Lameter <[email protected]>
|
|
Supply an implementation for x86 in order to generate more efficient code.
V2->V3:
- Cleanup
- Remove strange type checking from percpu_add_return_op.
tj: - Dropped unused typedef from percpu_add_return_op().
- Renamed ret__ to paro_ret__ in percpu_add_return_op().
- Minor indentation adjustments.
Acked-by: H. Peter Anvin <[email protected]>
Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
|
|
Merge reason: We want to apply a dependent patch.
Signed-off-by: Ingo Molnar <[email protected]>
|
|
Make use of PROC_DEVICETREE to export the tree, and sparc's PROMTREE code to
call into OLPC's Open Firmware to build the tree.
v5: fix buglet with root node check (introduced in v4)
v4: address some minor style issues pointed out by Grant, and explicitly cast
negative phandle checks to s32.
v3: rename olpc_prom to olpc_dt
- rework Kconfig entries
- drop devtree build hook from proc, instead adding a call to x86's
paging_init (similarly to how sparc64 does it)
- switch allocation from using slab to alloc_bootmem. this allows
the DT to be built earlier during boot (during setup_arch); the
downside is that there are some 1200 bootmem reservations that are
done during boot. Not ideal..
- add a helper olpc_ofw_is_installed function to test for the
existence and successful detection of OLPC's OFW.
Signed-off-by: Andres Salomon <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
|
|
- Define a stub irq_create_of_mapping for x86 as a stop-gap solution until
drivers/of/irq is further along.
- Define irq_dispose_mapping for x86 to appease of_i2c.c
These are needed to allow stuff in drivers/of/ to build on x86. This stuff
will eventually get replaced; quoting Grant,
"The long term plan is to have the drivers/of/ code handling the mapping
intelligently like powerpc currently does." But for now, just provide
these functions.
Signed-off-by: Andres Salomon <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
|
|
During suspend, we disable all the non boot cpus. And during resume we bring
them all back again. So no need to do alternatives_smp_switch() in between.
On my core 2 based laptop, this speeds up the suspend path by 15msec and the
resume path by 5 msec (suspend/resume speed up differences can be attributed
to the different P-states that the cpu is in during suspend/resume).
Signed-off-by: Suresh Siddha <[email protected]>
LKML-Reference: <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
|
|
There are 3 places defining similar functions of saving IRQ vector
info into mp_irqs[] array: mmparse/acpi/mrst.
Replace the redundant code by a common function in io_apic.c as it's
only called when CONFIG_X86_IO_APIC=y
Signed-off-by: Feng Tang <[email protected]>
Cc: Alan Cox <[email protected]>
Cc: Len Brown <[email protected]>
Cc: Yinghai Lu <[email protected]>
LKML-Reference: <20101207133204.4d913c5a@feng-i7>
Signed-off-by: Thomas Gleixner <[email protected]>
|
|
It is almost the same as smp_register_lapic_addr(). We just need to
let smp_read_mpc() call smp_register_lapic_addr() when early==1.
Add the apic_printk to smp_register_lapic_address()
Signed-off-by: Yinghai Lu <[email protected]>
Cc: Suresh Siddha <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
|
|
They are the same, move the common function to apic.c to allow
further cleanups.
Signed-off-by: Yinghai Lu <[email protected]>
Cc: Suresh Siddha <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Len Brown <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
|
|
Reason: apic cleanup series depends on x86/apic, x86/amd-nb and x86/platform
Signed-off-by: Thomas Gleixner <[email protected]>
|
|
Reason: apic cleanup series depends on x86/apic, x86/amd-nb x86/platform
Conflicts:
arch/x86/include/asm/io_apic.h
Signed-off-by: Thomas Gleixner <[email protected]>
|
|
Currently the number of CPUID leaves KVM handles is limited to 40.
My desktop machine (AthlonII) already has 35 and future CPUs will
expand this well beyond the limit. Extend the limit to 80 to make
room for future processors.
KVM-Stable-Tag.
Signed-off-by: Andre Przywara <[email protected]>
Signed-off-by: Avi Kivity <[email protected]>
|
|
Merge reason: Pick up the latest -rc.
Signed-off-by: Ingo Molnar <[email protected]>
|
|
Introduce text_poke_smp_batch(). This function modifies several
text areas with one stop_machine() on SMP. Because calling
stop_machine() is heavy task, it is better to aggregate
text_poke requests.
( Note: I've talked with Rusty about this interface, and
he would not like to expand stop_machine() interface, since
it is not for generic use. )
Signed-off-by: Masami Hiramatsu <[email protected]>
Acked-by: Steven Rostedt <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Ananth N Mavinakayanahalli <[email protected]>
Cc: Jason Baron <[email protected]>
Cc: Mathieu Desnoyers <[email protected]>
Cc: Jan Beulich <[email protected]>
Cc: [email protected]
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
|
|
Sodaville needs to setup the IO_APIC ids as the boot loader leaves
them uninitialized. Split out the setter function so it can be called
unconditionally from the sodaville board code.
Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
Cc: Yinghai Lu <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
|
|
If the guest domain has been suspend/resumed or migrated, then the
system clock backing the pvclock clocksource may revert to a smaller
value (ie, can be non-monotonic across the migration/save-restore).
Make sure we zero last_value in that case so that the domain
continues to see clock updates.
Signed-off-by: Jeremy Fitzhardinge <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
dmar, x86: Use function stubs when CONFIG_INTR_REMAP is disabled
x86-64: Fix and clean up AMD Fam10 MMCONF enabling
x86: UV: Address interrupt/IO port operation conflict
x86: Use online node real index in calulate_tbl_offset()
x86, asm: Fix binutils 2.15 build failure
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf symbols: Remove incorrect open-coded container_of()
perf record: Handle restrictive permissions in /proc/{kallsyms,modules}
x86/kprobes: Prevent kprobes to probe on save_args()
irq_work: Drop cmpxchg() result
perf: Fix owner-list vs exit
x86, hw_nmi: Move backtrace_mask declaration under ARCH_HAS_NMI_WATCHDOG
tracing: Fix recursive user stack trace
perf,hw_breakpoint: Initialize hardware api earlier
x86: Ignore trap bits on single step exceptions
tracing: Force arch_local_irq_* notrace for paravirt
tracing: Fix module use of trace_bprintk()
|
|
Add description of .config in a sake of RAW events.
At least this should bring some light to those who
will be reading this code.
Signed-off-by: Cyrill Gorcunov <[email protected]>
Reviewed-by: Stephane Eranian <[email protected]>
Cc: Lin Ming <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
|