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This commit adds support for static ftrace, graph function support,
and dynamic tracer support.
Signed-off-by: Tony Lu <zlu@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This change adds infrastructure (CONFIG_TILE_HVGLUE_TRACE) that
provides C code wrappers for the calls the kernel makes to the Tilera
hypervisor. This allows standard kernel infrastructure like FTRACE to
be able to instrument hypervisor calls.
To allow direct calls to the true API, we export their names with a
leading underscore as well. This is important for the few contexts
where we need to make hypervisor calls without touching the stack.
As part of this change, we also switch from creating the symbols
with linker magic to creating them with assembler magic. This lets
us provide a symbol type and generally make them appear more as symbols
and less as just random values in the Elf namespace.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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If ioreamp_prot() fails in ioremap_page_range() due to kernel memory
exhaustion, we previously would leak a struct vm_struct.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This change creates the framework for vDSO calls, makes the existing
rt_sigreturn() mechanism use it, and adds a fast gettimeofday().
Now that we need to expose the vDSO address to userspace, we add
AT_SYSINFO_EHDR to the set of aux entries provided to userspace.
(You can disable any extra vDSO support by booting with vdso=0,
but the rt_sigreturn vDSO page will still be provided.)
Note that glibc has supported the tile vDSO since release 2.17.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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The tile code notifies the simulator of new ET_EXEC objects starting
to execute so that tracing code can properly annotate the objects.
However, we didn't support ET_DYN executables like ld.so, so we
didn't properly load symbols, etc. This change enables that support;
we use a variant of the SIM_CONTROL_DLOPEN simulator notification
that newer simulators will recognize and use to set the base address
for the next SIM_CONTROL_OS_EXEC notification.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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First, don't re-enable interrupts blindly in the Linux trap handler.
We already handle page faults this way; synchronous interrupts like
ILL_TRANS will fire even when interrupts are disabled, and we don't
want to re-enable interrupts in that case.
For ILL_TRANS, we now pass the ILL_VA_PC reason into the trap handler
so we can report it properly; this is the address that caused the
illegal translation trap. We print the address as part of the
pr_alert() message now if it's coming from the kernel.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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It's much easier to read register dumps if you read vertically
rather than horizontally, since the register numbers line up
and lead the eye down more than to the right.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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First, fix a bug in asm/unaligned.h; we need to just use the asm-generic
unaligned.h so we properly choose endian-correct flavors.
Second, keep the hv/hypervisor.h ABI fully "native" in the sense that
we don't have __BIG_ENDIAN__ ifdefs there. Instead, we use macros in
the head_NN.S assembly code to properly extract two 32-bit structure
members from a 64-bit register holding the structure.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This change adds support for CONFIG_PREEMPT (full kernel preemption).
In addition to the core support, this change includes a number
of places where we fix up uses of smp_processor_id() and per-cpu
variables. I also eliminate the PAGE_HOME_HERE and PAGE_HOME_UNKNOWN
values for page homing, as it turns out they weren't being used.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Since it's a no-op on tile anyway, there's no reason to be calling
it in tile-specific code.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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First, in huge_pte_offset(), we were erroneously checking
pgd_present(), which is always true, rather than pud_present(),
which is the thing that tells us if there is a top-level (L0) PTE.
Fixing this means we properly look up huge page entries only when
the Present bit is actually set in the PTE.
Second, use the standard pte_alloc_map() instead of the hand-rolled
pte_alloc_hugetlb() routine that basically was written to avoid
worrying about CONFIG_HIGHPTE. However, we no longer plan to support
HIGHPTE, so a separate routine was just unnecessary code duplication.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This change adds support for avoiding recursive backtracer crashes;
we haven't seen this in practice other than when things are seriously
corrupt, but it may help avoid losing the root cause of a crash.
Also, don't abort kernel backtracers for invalid userspace PC's.
If we do, we lose the ability to backtrace through a userspace
call to a bad address above PAGE_OFFSET, even though that it can
be perfectly reasonable to continue the backtrace in such a case.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This change enables unaligned userspace memory access via a kernel
fast path on tilegx. The kernel tracks user PC/instruction pairs
per-thread using a direct-mapped cache in userspace. The cache
maps those PC/instruction pairs to JIT'ed instruction sequences that
load or store using byte-wide load store intructions and then
synthesize 2-, 4- or 8-byte load or store results. Once an
instruction has been seen to generate an unaligned access once,
subsequent hits on that instruction typically require overhead
of only around 50 cycles if cache and TLB is hot.
We support the prctl() PR_GET_UNALIGN / PR_SET_UNALIGN sys call to
enable or disable unaligned fixups on a per-process basis.
To do this we pull some of the tilepro unaligned support out of the
single_step.c file; tilepro uses instruction disassembly for both
single-step and unaligned access support. Since tilegx actually has
hardware singlestep support, though, it's cleaner to keep the tilegx
unaligned access code in a separate file. While we're at it,
properly rename the tilepro-specific types, etc., to have tilepro
suffixes instead of generic tile suffixes.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Pointed out by checkpatch. A few of the DEFINE() lines were
properly written without backslash continuation; fix the rest.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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As specified, the test wasn't correct, and in any case it should
be a BUILD_BUG_ON.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This change adds support for the "memmap" boot parameter similar
to what x86 provides. The tile version supports "memmap=1G$5G",
for example, as a way to reserve a 1 GB range starting at PA 5GB.
The memory is reserved via bootmem during startup, and we create a
suitable "struct resource" marked as "Reserved" so you can see the
range reported by /proc/iomem. Up to 64 such regions can currently
be reserved on the boot command line.
We do not support the x86 options "memmap=nn@ss" (force some memory
to be available at the given address) since it's pointless to try to
have Linux use memory the Tilera hypervisor hasn't given it. We do
not support "memmap=nn#ss" to add an ACPI range for later processing,
since we don't support ACPI. We do not support "memmap=exactmap"
since we don't support reading the e820 information from the BIOS
like x86 does. I did add support for "memmap=nn" (and the synonym
"mem=nn") which cap the highest PA value at "nn"; these are both
just a synonym for the existing tile boot option "maxmem".
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This change improves and cleans up the tile console.
- We enable HVC_IRQ support on tilegx, with the addition of a new
Tilera hypervisor API for tilegx to allow a console IPI. If IPI
support is not available we fall back to the previous polling mode.
- We simplify the earlyprintk code to use CON_BOOT and eliminate some
of the other supporting earlyprintk code.
- A new tile_console_write() primitive is used to send output to
the console and is factored out of the hvc_tile driver.
This lets us support a "sim_console" boot argument to allow using
simulator hooks to send output to the "console" as a slightly
faster alternative to emulating the hardware more directly.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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We can take advantage of the fact that bit 29 is hard-wired
to zero in register TRIO_TILE_PIO_REGION_SETUP_CFG_ADDR.
This is handy since at the moment we only allocate one 4GB
region for vmalloc, and with this change we can allocate
four or more TRIO MACs without using up all the vmalloc space.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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On Tilera Gx72 systems, the logic for figuring out whether
a given port is root complex is slightly different.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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The code incorrectly masked with PAGE_OFFSET instead of
PAGE_SIZE-1. This only matters when trying to do a
non page-aligned DMA; it was noticed during code inspection.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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The standard kernel function dma_get_required_mask() uses the
highest DRAM address to determine if 32-bit or 64-bit DMA addressing
is needed. This only works on architectures that have direct mapping
between the PA and the PCI address space, i.e. those that don't have
I/O TLBs or have I/O TLB but choose to use direct mapping. Neither
of these are true for tilegx. Whether to use 64-bit DMA should depend
on the PCI device's capability only, not on the amount of DRAM
installeds, so we now advertise a 64-bit DMA mask unconditionally.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Using the low-level hv_dev_pread() API makes assumptions about the
layout of datastructures in the Tilera hypervisor API; it's better to
use the gxio_XXX accessor and the pcie_trio_ports_property struct.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This change is purely stylistic but improves the readability
of the tile PCI RC driver.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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The .mem_resources[] field in the pci_controller struct
is now obsoleted by the .mem_space and .io_space fields.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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The TRIO shim initialization is shared with other kernel drivers
such as the endpoint and StreamIO drivers, so reorganize the
initialization flow to ensure that the root complex driver properly
initializes TRIO state regardless of what kind of TRIO driver will
end up using the shim.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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To enable this functionality, configure CONFIG_TILE_PCI_IO. Without
this flag, the kernel still assigns I/O address ranges to the
devices, but no TRIO resource and mapping support is provided.
We assign disjoint I/O address ranges to separate PCIe domains.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Besides using pr_info() to print the linkdown status for a plug-in
slot, add extra indication that this is expected if the slot is empty.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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To support PCIe devices with higher number of MSI-X interrupt vectors,
e.g. 16 for the LSI RAID card, enhance the Gx RC stack to provide more
MSI-X vectors by using the TRIO Scatter Queues, which provide 8 more
vectors in addition to ~10 from the Map Mem regions.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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The LSI MEGARAID SAS HBA suffers from the problem where it can do
64-bit DMA to streaming buffers but not to consistent buffers.
In other words, 64-bit DMA is used for disk data transfers and 32-bit
DMA must be used for control message transfers. According to LSI,
the firmware is not fully functional yet. This change implements a
kind of hybrid dma_ops to support this.
Note that on most other platforms, the 64-bit DMA addressing space is the
same as the 32-bit DMA space and they overlap the physical memory space.
No special arrangement is needed to support this kind of mixed DMA
capability. On TILE-Gx, the 64-bit DMA space is completely separate
from the 32-bit DMA space. Due to the use of the IOMMU, the 64-bit DMA
space doesn't overlap the physical memory space. On the other hand,
the 32-bit DMA space overlaps the physical memory space under 4GB.
The separate address spaces make it necessary to have separate dma_ops.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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If we are rebooting (e.g. via kexec) then the PCI RC link may
already be up. In that case, we don't want to do the software
fixup to force the link up, since that can degrade it to Gen1.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Allow longer delays if requested, and print the info messages
as we are performing the delay, not when parsing the arguments.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Fix a bug in the tilepro PCI resource allocation code that could make
the bootmem allocator unhappy if 4GB is installed on mshim 0.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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- remove unneeded <linux/bootmem.h> include in pci.c
- eliminate unused pci_controller.first_busno field
- prefer msleep to mdelay
- remove stale comment about pci_scan_bus_parented()
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Using strlen as a model, add length checking to create strnlen.
Signed-off-by: Ken Steele <ken@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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This change cleans up the string code in a number of ways:
- For memcpy(), fix bug in prefetch and increase distance to 3 lines;
optimize for unaligned data; do all loads before wh64 to make memcpy
safe for forward-overlapping calls; etc. Performance is improved.
- Use new copy_byte() function on tilegx to spread a single byte value
out into a full word using the shufflebytes instruction.
- Clean up header include ordering to be more canonical, and remove
spurious #undefs of function names.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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The "inv" (invalidate) instruction is generally less safe than "finv"
(flush and invalidate), as it will drop dirty data from the cache.
It turns out we have almost no need for "inv" (other than for the
older 32-bit architecture in some limited cases), so convert to
"finv" where possible and delete the extra "inv" infrastructure.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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First, clean up active hardwalls in exit_thread(). This is a better
place than in arch_release_thread_info().
Second, mask out any non-online cpus from the cpumask after
validating any required semantics of the cpu set.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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Need add cmpxchg64(), or will cause compiling issue.
Need define it as cmpxchg() only for 64-bit operation, since cmpxchg()
can support 8 bytes.
The related error (with allmodconfig):
drivers/block/blockconsole.c: In function ‘bcon_advance_console_bytes’:
drivers/block/blockconsole.c:164:2: error: implicit declaration of function ‘cmpxchg64’ [-Werror=implicit-function-declaration]
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs stuff from Al Viro:
"O_TMPFILE ABI changes, Oleg's fput() series, misc cleanups, including
making simple_lookup() usable for filesystems with non-NULL s_d_op,
which allows us to get rid of quite a bit of ugliness"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
sunrpc: now we can just set ->s_d_op
cgroup: we can use simple_lookup() now
efivarfs: we can use simple_lookup() now
make simple_lookup() usable for filesystems that set ->s_d_op
configfs: don't open-code d_alloc_name()
__rpc_lookup_create_exclusive: pass string instead of qstr
rpc_create_*_dir: don't bother with qstr
llist: llist_add() can use llist_add_batch()
llist: fix/simplify llist_add() and llist_add_batch()
fput: turn "list_head delayed_fput_list" into llist_head
fs/file_table.c:fput(): add comment
Safer ABI for O_TMPFILE
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Pull networking fixes from David Miller:
"Just a bunch of small fixes and tidy ups:
1) Finish the "busy_poll" renames, from Eliezer Tamir.
2) Fix RCU stalls in IFB driver, from Ding Tianhong.
3) Linearize buffers properly in tun/macvtap zerocopy code.
4) Don't crash on rmmod in vxlan, from Pravin B Shelar.
5) Spinlock used before init in alx driver, from Maarten Lankhorst.
6) A sparse warning fix in bnx2x broke TSO checksums, fix from Dmitry
Kravkov.
7) Dummy and ifb driver load failure paths can oops, fixes from Tan
Xiaojun and Ding Tianhong.
8) Correct MTU calculations in IP tunnels, from Alexander Duyck.
9) Account all TCP retransmits in SNMP stats properly, from Yuchung
Cheng.
10) atl1e and via-rhine do not handle DMA mapping failures properly,
from Neil Horman.
11) Various equal-cost multipath route fixes in ipv6 from Hannes
Frederic Sowa"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (36 commits)
ipv6: only static routes qualify for equal cost multipathing
via-rhine: fix dma mapping errors
atl1e: fix dma mapping warnings
tcp: account all retransmit failures
usb/net/r815x: fix cast to restricted __le32
usb/net/r8152: fix integer overflow in expression
net: access page->private by using page_private
net: strict_strtoul is obsolete, use kstrtoul instead
drivers/net/ieee802154: don't use devm_pinctrl_get_select_default() in probe
drivers/net/ethernet/cadence: don't use devm_pinctrl_get_select_default() in probe
drivers/net/can/c_can: don't use devm_pinctrl_get_select_default() in probe
net/usb: add relative mii functions for r815x
net/tipc: use %*phC to dump small buffers in hex form
qlcnic: Adding Maintainers.
gre: Fix MTU sizing check for gretap tunnels
pkt_sched: sch_qfq: remove forward declaration of qfq_update_agg_ts
pkt_sched: sch_qfq: improve efficiency of make_eligible
gso: Update tunnel segmentation to support Tx checksum offload
inet: fix spacing in assignment
ifb: fix oops when loading the ifb failed
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
- fix for do_div() abuse on x86
- locking fix in perf core
- a pile of (build) fixes and cleanups in perf tools
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
perf/x86: Fix incorrect use of do_div() in NMI warning
perf: Fix perf_lock_task_context() vs RCU
perf: Remove WARN_ON_ONCE() check in __perf_event_enable() for valid scenario
perf: Clone child context from parent context pmu
perf script: Fix broken include in Context.xs
perf tools: Fix -ldw/-lelf link test when static linking
perf tools: Revert regression in configuration of Python support
perf tools: Fix perf version generation
perf stat: Fix per-socket output bug for uncore events
perf symbols: Fix vdso list searching
perf evsel: Fix missing increment in sample parsing
perf tools: Update symbol_conf.nr_events when processing attribute events
perf tools: Fix new_term() missing free on error path
perf tools: Fix parse_events_terms() segfault on error path
perf evsel: Fix count parameter to read call in event_format__new
perf tools: fix a typo of a Power7 event name
perf tools: Fix -x/--exclude-other option for report command
perf evlist: Enhance perf_evlist__start_workload()
perf record: Remove -f/--force option
perf record: Remove -A/--append option
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"This is our first set of fixes from arm-soc for 3.11.
- A handful of build and warning fixes from Arnd
- A collection of OMAP fixes
- defconfig updates to make the default configs more useful for real
use (and testing) out of the box on hardware
And a couple of other small fixes. Some of these have been recently
applied but it's normally how we deal with fixes, with less bake time
in -next needed"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (32 commits)
arm: multi_v7_defconfig: Tweaks for omap and sunxi
arm: multi_v7_defconfig: add i.MX options and NFS root
ARM: omap2: add select of TI_PRIV_EDMA
ARM: exynos: select PM_GENERIC_DOMAINS only when used
ARM: ixp4xx: avoid circular header dependency
ARM: OMAP: omap_common_late_init may be unused
ARM: sti: move DEBUG_STI_UART into alphabetical order
ARM: OMAP: build mach-omap code only if needed
ARM: zynq: use DT_MACHINE_START
ARM: omap5: omap5 has SCU and TWD
ARM: OMAP2+: omap2plus_defconfig: Enable appended DTB support
ARM: OMAP2+: Enable TI_EDMA in omap2plus_defconfig
ARM: OMAP2+: omap2plus_defconfig: enable DRA752 thermal support by default
ARM: OMAP2+: omap2plus_defconfig: enable TI bandgap driver
ARM: OMAP2+: devices: remove duplicated include from devices.c
ARM: OMAP3: igep0020: Set DSS pins in correct mux mode.
ARM: OMAP2+: N900: enable N900-specific drivers even if device tree is enabled
ARM: OMAP2+: Cocci spatch "ptr_ret.spatch"
ARM: OMAP2+: Remove obsolete Makefile line
ARM: OMAP5: Enable Cortex A15 errata 798181
...
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Pull ARM fixes from Russell King:
"A few fixes for ARM, mostly just one liners with the exception of the
missing section specification. We decided not to rely on .previous to
fix this but to explicitly state the section we want the code to be
in."
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7778/1: smp_twd: twd_update_frequency need be run on all online CPUs
ARM: 7782/1: Kconfig: Let ARM_ERRATA_364296 not depend on CONFIG_SMP
ARM: mm: fix boot on SA1110 Assabet
ARM: 7781/1: mmu: Add debug_ll_io_init() mappings to early mappings
ARM: 7780/1: add missing linker section markup to head-common.S
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Pull MIPS updates from Ralf Baechle:
"MIPS updates:
- All the things that didn't make 3.10.
- Removes the Windriver PPMC platform. Nobody will miss it.
- Remove a workaround from kernel/irq/irqdomain.c which was there
exclusivly for MIPS. Patch by Grant Likely.
- More small improvments for the SEAD 3 platform
- Improvments on the BMIPS / SMP support for the BCM63xx series.
- Various cleanups of dead leftovers.
- Platform support for the Cavium Octeon-based EdgeRouter Lite.
Two large KVM patchsets didn't make it for this pull request because
their respective authors are vacationing"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (124 commits)
MIPS: Kconfig: Add missing MODULES dependency to VPE_LOADER
MIPS: BCM63xx: CLK: Add dummy clk_{set,round}_rate() functions
MIPS: SEAD3: Disable L2 cache on SEAD-3.
MIPS: BCM63xx: Enable second core SMP on BCM6328 if available
MIPS: BCM63xx: Add SMP support to prom.c
MIPS: define write{b,w,l,q}_relaxed
MIPS: Expose missing pci_io{map,unmap} declarations
MIPS: Malta: Update GCMP detection.
Revert "MIPS: make CAC_ADDR and UNCAC_ADDR account for PHYS_OFFSET"
MIPS: APSP: Remove <asm/kspd.h>
SSB: Kconfig: Amend SSB_EMBEDDED dependencies
MIPS: microMIPS: Fix improper definition of ISA exception bit.
MIPS: Don't try to decode microMIPS branch instructions where they cannot exist.
MIPS: Declare emulate_load_store_microMIPS as a static function.
MIPS: Fix typos and cleanup comment
MIPS: Cleanup indentation and whitespace
MIPS: BMIPS: support booting from physical CPU other than 0
MIPS: Only set cpu_has_mmips if SYS_SUPPORTS_MICROMIPS
MIPS: GIC: Fix gic_set_affinity infinite loop
MIPS: Don't save/restore OCTEON wide multiplier state on syscalls.
...
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Pull watchdog updates from Wim Van Sebroeck:
- lots of devm_ conversions and cleanup
- platform_set_drvdata cleanups
- s3c2410: dev_err/dev_info + dev_pm_ops
- watchdog_core: don't try to stop device if not running fix
- wdrtas: use print_hex_dump
- xilinx cleanups
- orion_wdt fixes
- softdog cleanup
- hpwdt: check on UEFI bits
- deletion of mpcore_wdt driver
- addition of broadcom BCM2835 watchdog timer driver
- addition of MEN A21 watcdog devices
* git://www.linux-watchdog.org/linux-watchdog: (38 commits)
watchdog: hpwdt: Add check for UEFI bits
watchdog: softdog: remove replaceable ping operation
watchdog: New watchdog driver for MEN A21 watchdogs
Watchdog: fix clearing of the watchdog interrupt
Watchdog: allow orion_wdt to be built for Dove
watchdog: Add Broadcom BCM2835 watchdog timer driver
watchdog: delete mpcore_wdt driver
watchdog: xilinx: Setup the origin compatible string
watchdog: xilinx: Fix driver header
watchdog: wdrtas: don't use custom version of print_hex_dump
watchdog: core: don't try to stop device if not running
watchdog: jz4740: Pass device to clk_get
watchdog: twl4030: Remove redundant platform_set_drvdata()
watchdog: mpcore: Remove redundant platform_set_drvdata()
watchdog: da9055: use platform_{get,set}_drvdata()
watchdog: da9052: use platform_{get,set}_drvdata()
watchdog: cpwd: use platform_{get,set}_drvdata()
watchdog: s3c2410_wdt: convert s3c2410wdt to dev_pm_ops
watchdog: s3c2410_wdt: use dev_err()/dev_info() instead of pr_err()/pr_info()
watchdog: wm831x: use platform_{get,set}_drvdata()
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