- As suggested by Gleb, wrap calls to gfn_to_pfn() with srcu_read_lock/unlock().
Memory slots should be acccessed from a SRCU read section.
- kvm_mips_map_page() now returns an error code to it's callers, instead of
calling panic() if it cannot find a mapping for a particular gfn.
Signed-off-by: Sanjay Lal <sanjayl@kymasys.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
local_irq_enable() may expand into very different code, so it rather should
stay in C. Also this keeps the assembler code size constant which keeps
the rollback code simple. So it's best to split r4k_wait into two parts,
one C and one assembler.
Finally add the local_irq_enable() to r4k_wait to ensure the WAIT
instruction in __r4k_wait() will work properly.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Impact:
1:convert all remain take_over_console to do_take_over_console
2:update take_over_console to do_take_over_console in comment
Commit dc9641895a ("vt: delete unneeded functions
register_con_driver|take_over_console") delete take_over_console,
but forget to convert remain take_over_console's users to new API
do_take_over_console, this patch fix it.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This fixes:
MODPOST 393 modules
ERROR: "min_low_pfn" [arch/mips/kvm/kvm.ko] undefined!
make[3]: *** [__modpost] Error 1
It would have been possible to just export min_low_pfn but in the end
pfn_valid should return 1 for any pfn argument for which a struct page
exists so using min_low_pfn was wrong anyway.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Pull devm usage cleanup from Wolfram Sang:
"Lately, I have been experimenting how to improve the devm interface to
make writing device drivers easier and less error prone while also
getting rid of its subtle issues. I think it has more potential but
still needs work and definately conistency, especiall in its usage.
The first thing I come up with is a low hanging fruit regarding
devm_ioremap_resouce(). This function already checks if the passed
resource is valid and gives an error message if not. So, we can
remove similar checks from the drivers and get rid of a bit of code
and a number of inconsistent error strings.
This series only removes the unneeded check iff devm_ioremap_resource
follows platform_get_resource directly. The previous version tried to
shuffle code if needed, too, what lead to an embarrasing bug. It
turned out to me that shuffling code for all cases found will make the
automated script too complex, so I am unsure if an automated cleanup
is the proper tool for this case. Removing the easy stuff seems
worthwhile to me, though.
Despite various architectures and platform dependencies, I managed to
compile test 45 out of 57 modified files locally using heuristics and
defconfigs."
Pulled because: 296 deletions, 0 additions.
* 'devm_no_resource_check' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (33 commits)
sound/soc/kirkwood: don't check resource with devm_ioremap_resource
sound/soc/fsl: don't check resource with devm_ioremap_resource
arch/mips/lantiq/xway: don't check resource with devm_ioremap_resource
arch/arm/plat-samsung: don't check resource with devm_ioremap_resource
arch/arm/mach-tegra: don't check resource with devm_ioremap_resource
drivers/watchdog: don't check resource with devm_ioremap_resource
drivers/w1/masters: don't check resource with devm_ioremap_resource
drivers/video/omap2/dss: don't check resource with devm_ioremap_resource
drivers/video/omap2: don't check resource with devm_ioremap_resource
drivers/usb/phy: don't check resource with devm_ioremap_resource
drivers/usb/host: don't check resource with devm_ioremap_resource
drivers/usb/gadget: don't check resource with devm_ioremap_resource
drivers/usb/chipidea: don't check resource with devm_ioremap_resource
drivers/thermal: don't check resource with devm_ioremap_resource
drivers/staging/nvec: don't check resource with devm_ioremap_resource
drivers/staging/dwc2: don't check resource with devm_ioremap_resource
drivers/spi: don't check resource with devm_ioremap_resource
drivers/rtc: don't check resource with devm_ioremap_resource
drivers/pwm: don't check resource with devm_ioremap_resource
drivers/pinctrl: don't check resource with devm_ioremap_resource
...
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: John Crispin <blogic@openwrt.org>
This sets up the devicetree file for the rt3050 chip series and rt3052
eval board to use the right compatible string for the dwc2 driver.
Acked-by: John Crispin <blogic@openwrt.org>
Cc: blogic@openwrt.org
Cc: linux-mips@linux-mips.org
Cc: Matthijs Kooijman <matthijs@stdin.nl>
Patchwork: https://patchwork.linux-mips.org/patch/5226/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
schedule_mfi is supposed to be extracted from schedule(), and
is used in thread_saved_pc and get_wchan.
But, after optimization, schedule() is reduced to a sibling
call to __schedule(), and no real frame info can be extracted.
One solution is to compile schedule() with -fno-omit-frame-pointer
and -fno-optimize-sibling-calls, but that will incur performance
degradation.
Another solution is to extract info from the real scheduler,
__schedule, and this is the approache adopted here.
This patch reads the __schedule address by either following
the 'j' call in schedule if KALLSYMS is disabled or by using
kallsyms_lookup_name to lookup __schedule if KALLSYMS is
available, then, extracts schedule_mfi from __schedule frame info.
This patch also fixes the "Can't analyze schedule() prologue"
warning at boot time.
Signed-off-by: Tony Wu <tung7970@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5237/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Given a function, get_frame_info() analyzes its instructions
to figure out frame size and return address. get_frame_info()
works as follows:
1. analyze up to 128 instructions if the function size is unknown
2. search for 'addiu/daddiu sp,sp,-immed' for frame size
3. search for 'sw ra,offset(sp)' for return address
4. end search when it sees jr/jal/jalr
This leads to an issue when the given function is a sibling
call, example shown as follows.
801ca110 <schedule>:
801ca110: 8f820000 lw v0,0(gp)
801ca114: 8c420000 lw v0,0(v0)
801ca118: 080726f0 j 801c9bc0 <__schedule>
801ca11c: 00000000 nop
801ca120 <io_schedule>:
801ca120: 27bdffe8 addiu sp,sp,-24
801ca124: 3c028022 lui v0,0x8022
801ca128: afbf0014 sw ra,20(sp)
In this case, get_frame_info() cannot properly detect schedule's
frame info, and eventually returns io_schedule's instead.
This patch adds 'j' to the end search condition to workaround
sibling call cases.
Signed-off-by: Tony Wu <tung7970@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5236/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
As reported:
This problem was discovered when doing BGP traffic with the TCP MD5 option
activated, where the following call chain caused a crash:
* tcp_v4_rcv
* tcp_v4_timewait_ack
* tcp_v4_send_ack -> follow stack variable rep.th
* tcp_v4_md5_hash_hdr
* tcp_md5_hash_header
* sg_init_one
* sg_set_buf
* virt_to_page
I noticed that tcp_v4_send_reset uses a similar stack variable and
also calls tcp_v4_md5_hash_hdr, so it has the same problem.
The networking core can indirectly call virt_to_phys() on stack
addresses, if this is done from PID 0, the stack will usually be in
CKSEG0, so virt_to_phys() needs to work there as well
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: Jiang Liu <liuj97@gmail.com>
Cc: eunb.song@samsung.com
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/5220/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This patch fixes crash_dump.c build error. Build error logs are as follow.
arch/mips/kernel/crash_dump.c: In function 'kdump_buf_page_init':
arch/mips/kernel/crash_dump.c:67: error: implicit declaration of function 'kmalloc'
arch/mips/kernel/crash_dump.c:67: error: assignment makes pointer from integer without a cast
Signed-off-by: EunBong Song <eunb.song@samsung.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/5238/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This reverts commit d532f3d267.
The original commit has several problems:
1) Doesn't work with 64-bit kernels.
2) Calls TLBMISS_HANDLER_SETUP() before the code is generated.
3) Calls TLBMISS_HANDLER_SETUP() twice in per_cpu_trap_init() when
only one call is needed.
[ralf@linux-mips.org: Also revert the bits of the ASID patch which were
hidden in the KVM merge.]
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: "Steven J. Hill" <Steven.Hill@imgtec.com>
Cc: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/5242/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Commit 84ebc10294 (USB: remove
CONFIG_USB_SUSPEND option) failed to remove all of the usages of
USB_SUSPEND throughout the kernel. This patch (as1677) removes the
remaining instances of that symbol.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull stray syscall bits from Al Viro:
"Several syscall-related commits that were missing from the original"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
switch compat_sys_sysctl to COMPAT_SYSCALL_DEFINE
unicore32: just use mmap_pgoff()...
unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE
x86, vm86: fix VM86 syscalls: use SYSCALL_DEFINEx(...)
Pull MIPS updates from Ralf Baechle:
- More work on DT support for various platforms
- Various fixes that were to late to make it straight into 3.9
- Improved platform support, in particular the Netlogic XLR and
BCM63xx, and the SEAD3 and Malta eval boards.
- Support for several Ralink SOC families.
- Complete support for the microMIPS ASE which basically reencodes the
existing MIPS32/MIPS64 ISA to use non-constant size instructions.
- Some fallout from LTO work which remove old cruft and will generally
make the MIPS kernel easier to maintain and resistant to compiler
optimization, even in absence of LTO.
- KVM support. While MIPS has announced hardware virtualization
extensions this KVM extension uses trap and emulate mode for
virtualization of MIPS32. More KVM work to add support for VZ
hardware virtualizaiton extensions and MIPS64 will probably already
be merged for 3.11.
Most of this has been sitting in -next for a long time. All defconfigs
have been build or run time tested except three for which fixes are being
sent by other maintainers.
Semantic conflict with kvm updates done as per Ralf
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (118 commits)
MIPS: Add new GIC clockevent driver.
MIPS: Formatting clean-ups for clocksources.
MIPS: Refactor GIC clocksource code.
MIPS: Move 'gic_frequency' to common location.
MIPS: Move 'gic_present' to common location.
MIPS: MIPS16e: Add unaligned access support.
MIPS: MIPS16e: Support handling of delay slots.
MIPS: MIPS16e: Add instruction formats.
MIPS: microMIPS: Optimise 'strnlen' core library function.
MIPS: microMIPS: Optimise 'strlen' core library function.
MIPS: microMIPS: Optimise 'strncpy' core library function.
MIPS: microMIPS: Optimise 'memset' core library function.
MIPS: microMIPS: Add configuration option for microMIPS kernel.
MIPS: microMIPS: Disable LL/SC and fix linker bug.
MIPS: microMIPS: Add vdso support.
MIPS: microMIPS: Add unaligned access support.
MIPS: microMIPS: Support handling of delay slots.
MIPS: microMIPS: Add support for exception handling.
MIPS: microMIPS: Floating point support.
MIPS: microMIPS: Fix macro naming in micro-assembler.
...
GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any valid
cases for enableing GENERIC_GPIO without GPIOLIB, even though it is
possible to do so which has been causing confusion and breakage. This
branch does the work to completely eliminate GENERIC_GPIO.
However, it is not trivial to just create a branch to remove it. Over
the course of the v3.9 cycle more code referencing GENERIC_GPIO has been
added to linux-next that conflicts with this branch. The following must
be done to resolve the conflicts when merging this branch into mainline:
* "git grep CONFIG_GENERIC_GPIO" should return 0 hits. Matches should be
replaced with CONFIG_GPIOLIB
* "git grep '\bGENERIC_GPIO\b'" should return 1 hit in the Chinese
documentation.
* Selectors of GENERIC_GPIO should be turned into selectors of GPIOLIB
* definitions of the option in architecture Kconfig code should be deleted.
Stephen has 3 merge fixup patches[1] that do the above. They are currently
applicable on mainline as of May 2nd.
[1] http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg428056.html
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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux
Pull removal of GENERIC_GPIO from Grant Likely:
"GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any
valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it
is possible to do so which has been causing confusion and breakage.
This branch does the work to completely eliminate GENERIC_GPIO."
* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux:
gpio: update gpio Chinese documentation
Remove GENERIC_GPIO config option
Convert selectors of GENERIC_GPIO to GPIOLIB
blackfin: force use of gpiolib
m68k: coldfire: use gpiolib
mips: pnx833x: remove requirement for GENERIC_GPIO
openrisc: default GENERIC_GPIO to false
avr32: default GENERIC_GPIO to false
xtensa: remove explicit selection of GENERIC_GPIO
sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB
powerpc: remove redundant GENERIC_GPIO selection
unicore32: default GENERIC_GPIO to false
unicore32: remove unneeded select GENERIC_GPIO
arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB
arm: remove redundant GENERIC_GPIO selection
mips: alchemy: require gpiolib
mips: txx9: change GENERIC_GPIO to GPIOLIB
mips: loongson: use GPIO driver on CONFIG_GPIOLIB
mips: remove redundant GENERIC_GPIO select
Add new clockevent driver that uses the counter present on the MIPS
Global Interrupt Controller.
Signed-off-by: Raghu Gandham <Raghu.Gandham@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Reorganize some of the GIC clocksource driver code. Below is a list of
the various changes.
* No longer select CSRC_GIC by default for Malta platform.
* Limit choice for either the GIC or R4K clocksource, not both.
* Change location in Makefile.
* Created new 'gic_read_count' function in common 'irq-gic.c' file.
* Change 'git_hpt_read' function in 'csrc-gic.c' to use new function.
* Surround GIC specific code in Malta platform code with #ifdef's.
* Only initialize the GIC clocksource if it was selected. Original
code called it unconditionally if a GIC was found.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Move the global variable 'gic_frequency' to be defined in the file
'arch/mips/kernel/irq-gic.c' instead of defining it individually
for each platform making use of the GIC. Also change the type to
be an unsigned integer instead of signed.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Move the global variable 'gic_present' to be defined in the file
'arch/mips/kernel/irq-gic.c' instead of defining it individually
for each platform making use of the GIC. Also change the type to
be an unsigned integer instead of signed.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Add logic needed to handle unaligned accesses in MIPS16e mode.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Add structures for all the MIPS16e instructions. Also add the
enumerations for all the bit fields for opcodes, functions, etc.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Optimise 'strnlen' to use microMIPS instructions and/or optimisations
for binary size reduction. When the microMIPS ISA is not being used,
the library function compiles to the original binary code.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Optimise 'strlen' to use microMIPS instructions and/or optimisations
for binary size reduction. When the microMIPS ISA is not being used,
the library function compiles to the original binary code.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Optimise 'strncpy' to use microMIPS instructions and/or optimisations
for binary size reduction. When the microMIPS ISA is not being used,
the library function compiles to the original binary code.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Optimise 'memset' to use microMIPS instructions and/or optimisations
for binary size reduction. When the microMIPS ISA is not being used,
the library function compiles to the original binary code.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
This adds the option to build the Linux kernel using only the
microMIPS ISA. The resulting kernel binary is, at a minimum,
20% smaller than using the MIPS32R2 ISA.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Partially revert commit e0c14a260d66ba35935600d6435940a566fe806b
and turn off LL/SC when building a pure microMIPS kernel. This is
a temporary fix until the cmpxchg assembly macro functions are
re-written to not use the HI/LO registers in address calculations.
Also add .insn in selected user access functions which would
otherwise produce ISA mode jump incompatibilities. This is also a
temporary fix.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Add logic needed to handle unaligned accesses in microMIPS mode.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Add logic needed to properly calculate exceptions for delay slots
when in microMIPS mode.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
All exceptions must be taken in microMIPS mode, never in classic
MIPS mode or the kernel falls apart. A few NOP instructions are
used to maintain the correct alignment of microMIPS versions of
the exception vectors.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Add logic needed to do floating point emulation in microMIPS mode.
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Steven J. Hill <Steven. Hill@imgtec.com>
The macros did not properly take into account the ISA that
the kernel was being compiled with. A classic MIPS kernel
will have the standard 'uasm_i_##op' macro functions with
'MM_uasm_i_##op' macro functions for the microMIPS version.
A pure microMIPS kernel will have the standard macros with
'CL_uasm_i_##op' macro functions for the classic version.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Jump or branch target addresses have the first bit set. The
original mask did not take this into account and will cause
a field overflow warning for the target address when a jump
immediate instruction is built.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Currently, the following instructions are translated:
- CACHE (indexed)
- CACHE (va based): translated to a SYNCI, overkill on D-CACHE operations,
but still much faster than a trap.
- mfc0/mtc0: the virtual COP0 registers for the guest are implemented as
2-D array.
[COP#][SEL] and this is mapped into the guest kernel address space @ VA 0x0.
mfc0/mtc0 operations are transformed to load/stores.
Signed-off-by: Sanjay Lal <sanjayl@kymasys.com>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Changes for pure microMIPS cores to dynamically determine the ASID
size at boot time.
Includes bug fix https://patchwork.linux-mips.org/patch/5230/
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Original patch by Ralf Baechle and removed by Harold Koerfgen
with commit f67e4ffc79905482c3b9b8c8dd65197bac7eb508. This
allows for more generic kernels since the size of the ASID
and corresponding masks can be determined at run-time. This
patch is also required for the new Aptiv cores and has been
tested on Malta and Malta Aptiv platforms.
[ralf@linux-mips.org: Added relevant part of fix
https://patchwork.linux-mips.org/patch/5213/]
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Remove 'arch/mips/include/asm/mips-boards/prom.h' and get rid of
all inclusions of it by Malta and SEAD-3 platforms.
[ralf@linux-mips.org: Fold in John Crispin <blogic@openwrt.org>'s "MIPS:
ar7 powertv build"].
[ralf@linux-mips.org: Fold in John Crispin <blogic@openwrt.org>'s "MIPS:
unbreak powertv build"].
[ralf@linux-mips.org: Test. Build. Your. Fscking. Code. Or...]
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Add parsing of the environment and command line variables passed to
the kernel to the firmware library.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Add declaration of 'mips_scroll_message' and 'mips_display_message'
to the common generic header file for the MIPS Technologies Inc.
development boards.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Setting the LED_CORE_SUSPENDRESUME flag causes the LED driver core to call
led_classdev_suspend/led_classdev_resume during suspend/resume. Since this is
exactly what the driver's custom suspend/resume callbacks do we can replace them
by setting the LED_CORE_SUSPENDRESUME flag.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
- Note that this file is statically linked with the rest of the host kernel (KSEG0). This is because kernel modules are
loaded into mapped space on MIPS and we want to make sure that we don't get any host kernel TLB faults while
manipulating TLBs.
- Virtual Guest TLBs are implemented as 64 entry array regardless of the number of host TLB entries.
- Shadow TLBs map Guest virtual addresses to Host physical addresses.
- TLB miss handling details:
Guest KSEG0 TLBMISS (0x40000000 – 0x60000000): Transparent to the Guest.
Guest KSEG2/3 (0x60000000 – 0x80000000) & Guest UM TLBMISS (0x00000000 – 0x40000000)
Lookup in Guest/Virtual TLB
If an entry doesn’t match
deliver appropriate TLBMISS LD/ST exception to the guest
If entry does exist in the Guest TLB and is NOT Valid
Deliver TLB invalid exception to the guest
If entry does exist in the Guest TLB and is VALID
Inject the TLB entry into the Shadow TLB
Signed-off-by: Sanjay Lal <sanjayl@kymasys.com>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
- The Guest kernel is run in UM and privileged instructions cause a trap.
- If the instruction causing the trap is in a branch delay slot, the branch
needs to be emulated to figure out the PC @ which the guest will resume
execution.
Signed-off-by: Sanjay Lal <sanjayl@kymasys.com>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
- Implements the arch specific APIs for KVM, some are stubs for MIPS
- kvm_mips_handle_exit(): Main 'C' distpatch routine for handling exceptions while in "Guest" mode.
- Also implements in-kernel timer interrupt support for the guest.
Signed-off-by: Sanjay Lal <sanjayl@kymasys.com>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
- __kvm_mips_vcpu_run: main entry point to enter guest, we save kernel context, load
up guest context from and ERET to guest context.
- mips32_exception: L1 exception handler(s), save k0/k1 and jump to main handlers.
- mips32_GuestException: Generic exception handlers for exceptions/interrupts while in
guest context. Save guest context, restore some kernel context and jump to
main 'C' handler: kvm_mips_handle_exit()
Signed-off-by: Sanjay Lal <sanjayl@kymasys.com>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
- Add the KVM option to MIPS build files.
- Add default config files for KVM host/guest kernels.
- Change the link address for the Malta KVM Guest kernel to UM (0x40100000).
- Add KVM Kconfig file with KVM/MIPS specific options
Signed-off-by: Sanjay Lal <sanjayl@kymasys.com>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
In the Linux kernel traditionally pfns are represented by an unsigned long.
However a few bits of the SGI IP27 platform code that were ported from
IRIX are using pfn_t for historic reasons. This is conflicting with
KVM's use of pfn_t.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Add some mosty unused, but missing clocks for BCM6328 and BCM6362.
This also fixes PCIe init on BCM6362.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5200/
Acked-by: John Crispin <blogic@openwrt.org>
There is now a generic function for detecting memory size. Use this instead of
the one found in the ath79 support.
Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5149/
Call detect_memory_region() from plat_mem_setup() unless the size was already
read from the system controller.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5184/
Populate struct soc_info with the data that describes our RAM window.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5183/
Populate struct soc_info with the data that describes our RAM window.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5182/
Populate struct soc_info with the data that describes our RAM window.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5181/
Populate struct soc_info with the data that describes our RAM window.
As memory detection fails on RT5350 we read the amount of available memory
from the system controller.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5180/
Depending on the actual SoC we have a different base address as well as minimum
and maximum size for RAM. Add these fields to the per SoC structure.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5179/
Add a generic way of detecting the available RAM. This function is based on the
implementation already used by ath79.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5178/
Add a dtsi file for MT7620A SoC and a sample dts file.
Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Patchwork: http://patchwork.linux-mips.org/patch/5190/
Add a dtsi file for RT3883 SoC and a sample dts file.
Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Patchwork: http://patchwork.linux-mips.org/patch/5189/
Add a dtsi file for RT2880 SoC and a sample dts file.
Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Patchwork: http://patchwork.linux-mips.org/patch/5188/
* remove nodes for cores whose drivers are not upstream yet
* add compat string for an additional soc
* fix a whitespace error
Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Patchwork: http://patchwork.linux-mips.org/patch/5186/
Add support code for mt7620 SOC.
The code detects the SoC and registers the clk / pinmux settings.
Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5177/
Add support code for rt3883 SOC.
The code detects the SoC and registers the clk / pinmux settings.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5185/
Add support code for rt2880 SOC.
The code detects the SoC and registers the clk / pinmux settings.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5176/
Add a field for the uart muxing mask and set it inside the rt305x setup code.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5744/
This will be used for RT3662/RT3883.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5173/
These structures are exported via struct ralink_pinmux rt_gpio_pinmux and can
hence be static.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5172/
RT2880 has a different location for the early serial port.
Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5170/
Add a few missing defines that are needed to make memory detection work on the
RT5350.
Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5169/
Trivial patch that adds a comment that makes the code more readable.
Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5168/
Add a few missing clocks.
Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5167/
Add a few missing defines that are needed to make USB and clock detection work
on the RT3352.
Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5166/
The Ralink IRQ code was not handling the PCI IRQ yet. Add this functionaility
to make PCI work on rt3883.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5165/
Previously this functionality was only available to users of the mips_machine
api. Moving the code to prom.c allows us to also add a OF wrapper.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5164/
Current GPIO chip implementation in octeon-irq is still broken, even after upstream
commit 87161ccdc6 (MIPS: Octeon: Fix broken interrupt
controller code). It works for GPIO IRQs that have reset-default configuration, but
not for edge-triggered ones.
The problem is in octeon_irq_gpio_map_common(), which passes modified "hw" variable
(which has range of possible values 16..31) as "gpio_line" parameter to
octeon_irq_set_ciu_mapping(), which saves it in private data of the IRQ chip. Later,
neither octeon_irq_gpio_setup() is able to re-configure GPIOs (cvmx_write_csr() is
writing to non-existent CVMX_GPIO_BIT_CFGX), nor octeon_irq_ciu_gpio_ack() is able
to acknowledge such IRQ, because "mask" is incorrect.
Fix is trivial and has been tested on Cavium Octeon II -based board, including
both level-triggered and edge-triggered GPIO IRQs.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin.ext@nsn.com>
Cc: David Daney <david.daney@cavium.com>
Acked-by: David Daney <david.daney@cavium.com>
Patchwork: http://patchwork.linux-mips.org/patch/4980/
Acked-by: John Crispin <blogic@openwrt.org>
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.
Signed-off-by: Silviu-Mihai Popescu <silviupopescu1990@gmail.com>
Patchwork: http://patchwork.linux-mips.org/patch/4986/
Acked-by: John Crispin <blogic@openwrt.org>
The operations on the bitmap pointers are protected by "memory"
clobbering raw_local_irq_{save,restore}(), so there is no need for
volatile here. By removing the volatile we get better code generation
out of the compiler.
Signed-off-by: David Daney <david.daney@cavium.com>
Patchwork: http://patchwork.linux-mips.org/patch/4966/
Acked-by: John Crispin <blogic@openwrt.org>
Currently, init_new_context() only for each online CPU, this may cause
memory corruption when CPU hotplug and fork() happens at the same time.
To avoid this, we make init_new_context() cover each possible CPU.
Scenario:
1, CPU#1 is being offline;
2, On CPU#0, do_fork() call dup_mm() and copy a mm_struct to the child;
3, On CPU#0, dup_mm() call init_new_context(), since CPU#1 is offline
and init_new_context() only covers the online CPUs, child has the
same asid as its parent on CPU#1 (however, child's asid should be 0);
4, CPU#1 is being online;
5, Now, if both parent and child run on CPU#1, memory corruption (e.g.
segfault, bus error, etc.) will occur.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Acked-by: David Daney <david.daney@cavium.com>
Patchwork: http://patchwork.linux-mips.org/patch/4995/
Acked-by: John Crispin <blogic@openwrt.org>
This and the next patch resolve memory corruption problems while CPU
hotplug. Without these patches, memory corruption can triggered easily
as below:
On a quad-core MIPS platform, use "spawn" of UnixBench-5.1.3 (http://
code.google.com/p/byte-unixbench/) and a CPU hotplug script like this
(hotplug.sh):
while true; do
echo 0 >/sys/devices/system/cpu/cpu1/online
echo 0 >/sys/devices/system/cpu/cpu2/online
echo 0 >/sys/devices/system/cpu/cpu3/online
sleep 1
echo 1 >/sys/devices/system/cpu/cpu1/online
echo 1 >/sys/devices/system/cpu/cpu2/online
echo 1 >/sys/devices/system/cpu/cpu3/online
sleep 1
done
Run "hotplug.sh" and then run "spawn 10000", spawn will get segfault
after a few minutes.
This patch:
Currently, clear_page()/copy_page() are generated by Micro-assembler
dynamically. But they are unavailable until uasm_resolve_relocs() has
finished because jump labels are illegal before that. Since these
functions are shared by every CPU, we only call build_clear_page()/
build_copy_page() only once at boot time. Without this patch, programs
will get random memory corruption (segmentation fault, bus error, etc.)
while CPU Hotplug (e.g. one CPU is using clear_page() while another is
generating it in cpu_cache_init()).
For similar reasons we modify build_tlb_refill_handler()'s invocation.
V2:
1, Rework the code to make CPU#0 can be online/offline.
2, Introduce cpu_has_local_ebase feature since some types of MIPS CPU
need a per-CPU tlb_refill_handler().
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Hongbing Hu <huhb@lemote.com>
Acked-by: David Daney <david.daney@cavium.com>
Patchwork: http://patchwork.linux-mips.org/patch/4994/
Acked-by: John Crispin <blogic@openwrt.org>
The Kconfig symbol MIPS_DISABLE_OBSOLETE_IDE was added in v2.6.10. It
has never been used. Let's remove it.
The symbol was originally introduced by the following commit
commit 2bfa662b64a7ee593f3039c1d3fd81a7766a63cd
Author: Pete Popov <ppopov@embeddedalley.com>
Date: Tue Oct 12 06:24:19 2004 +0000
- Db1550 bug fixes
- updated defconfig
- updated Kconfig to use DMA_COHERENT since new silicon is coherent
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Patchwork: http://patchwork.linux-mips.org/patch/5064/
Acked-by: John Crispin <blogic@openwrt.org>
The Kconfig symbol MIPS_BOARDS_GEN is unused since v2.6.27. It should
now be removed.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Patchwork: http://patchwork.linux-mips.org/patch/5063/
Acked-by: John Crispin <blogic@openwrt.org>
The support for PB1100, PB1500, and PB1550 got merged into the code for
DB1000 and DB1550 code in v3.7. When that was done the three related
Kconfig symbols were dropped. But not all related Kconfig macros were
removed. Do so now.
Note that the PB1100 code in the Au1100 LCD driver is removed entirely
and not converted to use its current Kconfig macro. That is done because
the macros it uses (PB1100_G_CONTROL, PB1100_G_CONTROL_BL, and
PB1100_G_CONTROL_VDD) are never defined. Actually only one of these was
ever defined (PB1100_G_CONTROL) but that define was removed in v2.6.34.
So, as far as I can tell, this code could have never compiled.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Patchwork: http://patchwork.linux-mips.org/patch/5040/
Acked-by: John Crispin <blogic@openwrt.org>
The commit c783390a0e [MIPS: oprofile:
Support for XLR/XLS processors] causes a compilation failure when
oprofile is enabled and SMP is not configured.
arch/mips/oprofile/op_model_mipsxx.c: In function 'mipsxx_cpu_setup':
arch/mips/oprofile/op_model_mipsxx.c:181:2: error: implicit declaration of function 'cpu_logical_map'
To fix this, update oprofile_skip_cpu to not call cpu_logical_map when
CONFIG_SMP is not defined.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5037/
Acked-by: John Crispin <blogic@openwrt.org>
The definitions are not used anywhere else, and merging it will
make adding the new USB definitions for XLPII series easier.
While there, cleanup some whitespace in usb-init.c. There is no
change to logic due to this commit.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5027/
Acked-by: John Crispin <blogic@openwrt.org>
This enables us to have a default device tree per SoC family to be built
into the kernel. The default device tree for XLP3xx has been added as part
of this change. Later this can be used to provide support default boards
for XLP2xx and XLP9xx SoCs.
Kconfig options are provided for each default device tree so that just the
needed ones can be selected to be built into the kernel.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5023/
Acked-by: John Crispin <blogic@openwrt.org>
Remove unused functions and redundant comments from
arch/mips/include/asm/netlogic/haldefs.h
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5029/
Acked-by: John Crispin <blogic@openwrt.org>
Update asm/netlogic/haldefs.h to extend register access functions
nlm_{read,write}_reg64() for 32-bit compilation. When compiled for 32-bit
the functions will read 64 IO registers with interrupts disabled.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5026/
Acked-by: John Crispin <blogic@openwrt.org>
The index for a device interrupt in the PIC interrupt routing table
changes for different chips in the XLP family. Avoid using the fixed
entries and derive the index value from the SoC device header.
Add workarounds for some devices which do not report the IRT index
correctly.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5025/
Acked-by: John Crispin <blogic@openwrt.org>
Use standard function to print cpumask. Also fixup the name of the
variable used and make it static.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5024/
Acked-by: John Crispin <blogic@openwrt.org>
Remove the definitions of {read,write}_c0_{eirr,eimr}. These functions
are now unused after the PIC and IRQ code has been updated to use
optimized EIMR/EIRR functions which work on both 32-bit and 64-bit.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5021/
Acked-by: John Crispin <blogic@openwrt.org>
Remove the irq save/restore from write_c0_eimr(), as it is always called
with interrupts off.
This allows us to remove workaround in write_c0_eimr() to fix up the
flags used by local_irq_save. This fixup worked on XLR, but will break
when 32-bit support is added to r2 cpus like XLP.
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Patchwork: http://patchwork.linux-mips.org/patch/5022/
Acked-by: John Crispin <blogic@openwrt.org>
All the header file does is provide the internal structure of clk,
which shouldn't be used by anyone except clk.c itself anyway.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Patchwork: http://patchwork.linux-mips.org/patch/5055/
Acked-by: John Crispin <blogic@openwrt.org>
BCM6362 support booting from SPI flash and NAND.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5012/
Acked-by: John Crispin <blogic@openwrt.org>
The PCIe controller is almost the same as the BCM6328 one, with only
the SERDES register being at a different location.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5011/
Acked-by: John Crispin <blogic@openwrt.org>
The SPI controller shares the same register layout as the 6358 one.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5010/
Acked-by: John Crispin <blogic@openwrt.org>
Add basic support for detecting and booting the BCM6362.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5009/
Acked-by: John Crispin <blogic@openwrt.org>
Instead of trying to use a correlation of cpu prid and chip id and
hoping they will always be unique, use the cpu prid to determine the
chip id register location and just read out the chip id.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5008/
Acked-by: John Crispin <blogic@openwrt.org>
The REVID is only 8 bit wide.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5007/
Acked-by: John Crispin <blogic@openwrt.org>
BCM6338 and BCM6348, and BCM6358 and everything after that share the
same register layout. To not have to redefine them for each new chip
and keep the code size small, only use the definitions for the first
chip with the certain layout.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5006/
Acked-by: John Crispin <blogic@openwrt.org>
Pull VFS updates from Al Viro,
Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).
7kloc removed.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
don't bother with deferred freeing of fdtables
proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
proc: Make the PROC_I() and PDE() macros internal to procfs
proc: Supply a function to remove a proc entry by PDE
take cgroup_open() and cpuset_open() to fs/proc/base.c
ppc: Clean up scanlog
ppc: Clean up rtas_flash driver somewhat
hostap: proc: Use remove_proc_subtree()
drm: proc: Use remove_proc_subtree()
drm: proc: Use minor->index to label things, not PDE->name
drm: Constify drm_proc_list[]
zoran: Don't print proc_dir_entry data in debug
reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
proc: Supply an accessor for getting the data from a PDE's parent
airo: Use remove_proc_subtree()
rtl8192u: Don't need to save device proc dir PDE
rtl8187se: Use a dir under /proc/net/r8180/
proc: Add proc_mkdir_data()
proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
proc: Move PDE_NET() to fs/proc/proc_net.c
...
Some MIPS controllers have hardware I/O coherency. This patch
detects those and turns off software coherency. A new kernel
command line option also allows the user to manually turn
software coherency on or off.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Add in new Malta config files for SMVP, SMTC, and APRP. Also update
the original 'malta_defconfig' config file.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Add two new macros for microMIPS. One checks if an exception was
taken in either microMIPS or classic MIPS mode. The other checks
if a microMIPS instruction is 16-bit or 32-bit in length.
[ralf@linux-mips.org: Removed unnecessary parenthesis as noted by
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>]
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Cc: linux-mips@linux-mips.org
Cc: cernekee@gmail.com
Cc: kevink@paralogos.com
Cc: ddaney.cavm@gmail.com
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Patchwork: https://patchwork.linux-mips.org/patch/4924/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
(cherry picked from commit 49df26472338b935fd5781bf94a77a88b148a716)
Add new file 'uasm-micromips.c' that allows the micro assembler
to generate microMIPS ISA code. It can be included in the kernel
alongside the classic ISA as long as the platform supports the
microMIPS ISA.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Cc: linux-mips@linux-mips.org
Cc: cernekee@gmail.com
Cc: kevink@paralogos.com
Cc: ddaney.cavm@gmail.com
Patchwork: https://patchwork.linux-mips.org/patch/4923/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
(cherry picked from commit 5f011a866afbd03a5379f67f4e70e5efbdfc16e9)
Split 'uasm.c' into two files. The new file 'uasm-mips.c' has the
functions specific to the classic MIPS ISA. The 'uasm.c' file
contains common code that can be used by classic or other ISAs
that could be supported by the kernel.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Cc: linux-mips@linux-mips.org
Cc: cernekee@gmail.com
Cc: kevink@paralogos.com
Cc: ddaney.cavm@gmail.com
Patchwork: https://patchwork.linux-mips.org/patch/4922/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
(cherry picked from commit 0961103562ab958fa74f35043bf4f72e51ed6155)
Pull networking updates from David Miller:
"Highlights (1721 non-merge commits, this has to be a record of some
sort):
1) Add 'random' mode to team driver, from Jiri Pirko and Eric
Dumazet.
2) Make it so that any driver that supports configuration of multiple
MAC addresses can provide the forwarding database add and del
calls by providing a default implementation and hooking that up if
the driver doesn't have an explicit set of handlers. From Vlad
Yasevich.
3) Support GSO segmentation over tunnels and other encapsulating
devices such as VXLAN, from Pravin B Shelar.
4) Support L2 GRE tunnels in the flow dissector, from Michael Dalton.
5) Implement Tail Loss Probe (TLP) detection in TCP, from Nandita
Dukkipati.
6) In the PHY layer, allow supporting wake-on-lan in situations where
the PHY registers have to be written for it to be configured.
Use it to support wake-on-lan in mv643xx_eth.
From Michael Stapelberg.
7) Significantly improve firewire IPV6 support, from YOSHIFUJI
Hideaki.
8) Allow multiple packets to be sent in a single transmission using
network coding in batman-adv, from Martin Hundebøll.
9) Add support for T5 cxgb4 chips, from Santosh Rastapur.
10) Generalize the VXLAN forwarding tables so that there is more
flexibility in configurating various aspects of the endpoints.
From David Stevens.
11) Support RSS and TSO in hardware over GRE tunnels in bxn2x driver,
from Dmitry Kravkov.
12) Zero copy support in nfnelink_queue, from Eric Dumazet and Pablo
Neira Ayuso.
13) Start adding networking selftests.
14) In situations of overload on the same AF_PACKET fanout socket, or
per-cpu packet receive queue, minimize drop by distributing the
load to other cpus/fanouts. From Willem de Bruijn and Eric
Dumazet.
15) Add support for new payload offset BPF instruction, from Daniel
Borkmann.
16) Convert several drivers over to mdoule_platform_driver(), from
Sachin Kamat.
17) Provide a minimal BPF JIT image disassembler userspace tool, from
Daniel Borkmann.
18) Rewrite F-RTO implementation in TCP to match the final
specification of it in RFC4138 and RFC5682. From Yuchung Cheng.
19) Provide netlink socket diag of netlink sockets ("Yo dawg, I hear
you like netlink, so I implemented netlink dumping of netlink
sockets.") From Andrey Vagin.
20) Remove ugly passing of rtnetlink attributes into rtnl_doit
functions, from Thomas Graf.
21) Allow userspace to be able to see if a configuration change occurs
in the middle of an address or device list dump, from Nicolas
Dichtel.
22) Support RFC3168 ECN protection for ipv6 fragments, from Hannes
Frederic Sowa.
23) Increase accuracy of packet length used by packet scheduler, from
Jason Wang.
24) Beginning set of changes to make ipv4/ipv6 fragment handling more
scalable and less susceptible to overload and locking contention,
from Jesper Dangaard Brouer.
25) Get rid of using non-type-safe NLMSG_* macros and use nlmsg_*()
instead. From Hong Zhiguo.
26) Optimize route usage in IPVS by avoiding reference counting where
possible, from Julian Anastasov.
27) Convert IPVS schedulers to RCU, also from Julian Anastasov.
28) Support cpu fanouts in xt_NFQUEUE netfilter target, from Holger
Eitzenberger.
29) Network namespace support for nf_log, ebt_log, xt_LOG, ipt_ULOG,
nfnetlink_log, and nfnetlink_queue. From Gao feng.
30) Implement RFC3168 ECN protection, from Hannes Frederic Sowa.
31) Support several new r8169 chips, from Hayes Wang.
32) Support tokenized interface identifiers in ipv6, from Daniel
Borkmann.
33) Use usbnet_link_change() helper in USB net driver, from Ming Lei.
34) Add 802.1ad vlan offload support, from Patrick McHardy.
35) Support mmap() based netlink communication, also from Patrick
McHardy.
36) Support HW timestamping in mlx4 driver, from Amir Vadai.
37) Rationalize AF_PACKET packet timestamping when transmitting, from
Willem de Bruijn and Daniel Borkmann.
38) Bring parity to what's provided by /proc/net/packet socket dumping
and the info provided by netlink socket dumping of AF_PACKET
sockets. From Nicolas Dichtel.
39) Fix peeking beyond zero sized SKBs in AF_UNIX, from Benjamin
Poirier"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
filter: fix va_list build error
af_unix: fix a fatal race with bit fields
bnx2x: Prevent memory leak when cnic is absent
bnx2x: correct reading of speed capabilities
net: sctp: attribute printl with __printf for gcc fmt checks
netlink: kconfig: move mmap i/o into netlink kconfig
netpoll: convert mutex into a semaphore
netlink: Fix skb ref counting.
net_sched: act_ipt forward compat with xtables
mlx4_en: fix a build error on 32bit arches
Revert "bnx2x: allow nvram test to run when device is down"
bridge: avoid OOPS if root port not found
drivers: net: cpsw: fix kernel warn on cpsw irq enable
sh_eth: use random MAC address if no valid one supplied
3c509.c: call SET_NETDEV_DEV for all device types (ISA/ISAPnP/EISA)
tg3: fix to append hardware time stamping flags
unix/stream: fix peeking with an offset larger than data in queue
unix/dgram: fix peeking with an offset larger than data in queue
unix/dgram: peek beyond 0-sized skbs
openvswitch: Remove unneeded ovs_netdev_get_ifindex()
...
Pull compat cleanup from Al Viro:
"Mostly about syscall wrappers this time; there will be another pile
with patches in the same general area from various people, but I'd
rather push those after both that and vfs.git pile are in."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
syscalls.h: slightly reduce the jungles of macros
get rid of union semop in sys_semctl(2) arguments
make do_mremap() static
sparc: no need to sign-extend in sync_file_range() wrapper
ppc compat wrappers for add_key(2) and request_key(2) are pointless
x86: trim sys_ia32.h
x86: sys32_kill and sys32_mprotect are pointless
get rid of compat_sys_semctl() and friends in case of ARCH_WANT_OLD_COMPAT_IPC
merge compat sys_ipc instances
consolidate compat lookup_dcookie()
convert vmsplice to COMPAT_SYSCALL_DEFINE
switch getrusage() to COMPAT_SYSCALL_DEFINE
switch epoll_pwait to COMPAT_SYSCALL_DEFINE
convert sendfile{,64} to COMPAT_SYSCALL_DEFINE
switch signalfd{,4}() to COMPAT_SYSCALL_DEFINE
make SYSCALL_DEFINE<n>-generated wrappers do asmlinkage_protect
make HAVE_SYSCALL_WRAPPERS unconditional
consolidate cond_syscall and SYSCALL_ALIAS declarations
teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long
get rid of duplicate logics in __SC_....[1-6] definitions
Merge third batch of fixes from Andrew Morton:
"Most of the rest. I still have two large patchsets against AIO and
IPC, but they're a bit stuck behind other trees and I'm about to
vanish for six days.
- random fixlets
- inotify
- more of the MM queue
- show_stack() cleanups
- DMI update
- kthread/workqueue things
- compat cleanups
- epoll udpates
- binfmt updates
- nilfs2
- hfs
- hfsplus
- ptrace
- kmod
- coredump
- kexec
- rbtree
- pids
- pidns
- pps
- semaphore tweaks
- some w1 patches
- relay updates
- core Kconfig changes
- sysrq tweaks"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (109 commits)
Documentation/sysrq: fix inconstistent help message of sysrq key
ethernet/emac/sysrq: fix inconstistent help message of sysrq key
sparc/sysrq: fix inconstistent help message of sysrq key
powerpc/xmon/sysrq: fix inconstistent help message of sysrq key
ARM/etm/sysrq: fix inconstistent help message of sysrq key
power/sysrq: fix inconstistent help message of sysrq key
kgdb/sysrq: fix inconstistent help message of sysrq key
lib/decompress.c: fix initconst
notifier-error-inject: fix module names in Kconfig
kernel/sys.c: make prctl(PR_SET_MM) generally available
UAPI: remove empty Kbuild files
menuconfig: print more info for symbol without prompts
init/Kconfig: re-order CONFIG_EXPERT options to fix menuconfig display
kconfig menu: move Virtualization drivers near other virtualization options
Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
relay: use macro PAGE_ALIGN instead of FIX_SIZE
kernel/relay.c: move FIX_SIZE macro into relay.c
kernel/relay.c: remove unused function argument actor
drivers/w1/slaves/w1_ds2760.c: fix the error handling in w1_ds2760_add_slave()
drivers/w1/slaves/w1_ds2781.c: fix the error handling in w1_ds2781_add_slave()
...
show_regs() is inherently arch-dependent but it does make sense to print
generic debug information and some archs already do albeit in slightly
different forms. This patch introduces a generic function to print debug
information from show_regs() so that different archs print out the same
information and it's much easier to modify what's printed.
show_regs_print_info() prints out the same debug info as dump_stack()
does plus task and thread_info pointers.
* Archs which didn't print debug info now do.
alpha, arc, blackfin, c6x, cris, frv, h8300, hexagon, ia64, m32r,
metag, microblaze, mn10300, openrisc, parisc, score, sh64, sparc,
um, xtensa
* Already prints debug info. Replaced with show_regs_print_info().
The printed information is superset of what used to be there.
arm, arm64, avr32, mips, powerpc, sh32, tile, unicore32, x86
* s390 is special in that it used to print arch-specific information
along with generic debug info. Heiko and Martin think that the
arch-specific extra isn't worth keeping s390 specfic implementation.
Converted to use the generic version.
Note that now all archs print the debug info before actual register
dumps.
An example BUG() dump follows.
kernel BUG at /work/os/work/kernel/workqueue.c:4841!
invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.9.0-rc1-work+ #7
Hardware name: empty empty/S3992, BIOS 080011 10/26/2007
task: ffff88007c85e040 ti: ffff88007c860000 task.ti: ffff88007c860000
RIP: 0010:[<ffffffff8234a07e>] [<ffffffff8234a07e>] init_workqueues+0x4/0x6
RSP: 0000:ffff88007c861ec8 EFLAGS: 00010246
RAX: ffff88007c861fd8 RBX: ffffffff824466a8 RCX: 0000000000000001
RDX: 0000000000000046 RSI: 0000000000000001 RDI: ffffffff8234a07a
RBP: ffff88007c861ec8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8234a07a
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88007dc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff88015f7ff000 CR3: 00000000021f1000 CR4: 00000000000007f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Stack:
ffff88007c861ef8 ffffffff81000312 ffffffff824466a8 ffff88007c85e650
0000000000000003 0000000000000000 ffff88007c861f38 ffffffff82335e5d
ffff88007c862080 ffffffff8223d8c0 ffff88007c862080 ffffffff81c47760
Call Trace:
[<ffffffff81000312>] do_one_initcall+0x122/0x170
[<ffffffff82335e5d>] kernel_init_freeable+0x9b/0x1c8
[<ffffffff81c47760>] ? rest_init+0x140/0x140
[<ffffffff81c4776e>] kernel_init+0xe/0xf0
[<ffffffff81c6be9c>] ret_from_fork+0x7c/0xb0
[<ffffffff81c47760>] ? rest_init+0x140/0x140
...
v2: Typo fix in x86-32.
v3: CPU number dropped from show_regs_print_info() as
dump_stack_print_info() has been updated to print it. s390
specific implementation dropped as requested by s390 maintainers.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Chris Metcalf <cmetcalf@tilera.com> [tile bits]
Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon bits]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Both dump_stack() and show_stack() are currently implemented by each
architecture. show_stack(NULL, NULL) dumps the backtrace for the
current task as does dump_stack(). On some archs, dump_stack() prints
extra information - pid, utsname and so on - in addition to the
backtrace while the two are identical on other archs.
The usages in arch-independent code of the two functions indicate
show_stack(NULL, NULL) should print out bare backtrace while
dump_stack() is used for debugging purposes when something went wrong,
so it does make sense to print additional information on the task which
triggered dump_stack().
There's no reason to require archs to implement two separate but mostly
identical functions. It leads to unnecessary subtle information.
This patch expands the dummy fallback dump_stack() implementation in
lib/dump_stack.c such that it prints out debug information (taken from
x86) and invokes show_stack(NULL, NULL) and drops arch-specific
dump_stack() implementations in all archs except blackfin. Blackfin's
dump_stack() does something wonky that I don't understand.
Debug information can be printed separately by calling
dump_stack_print_info() so that arch-specific dump_stack()
implementation can still emit the same debug information. This is used
in blackfin.
This patch brings the following behavior changes.
* On some archs, an extra level in backtrace for show_stack() could be
printed. This is because the top frame was determined in
dump_stack() on those archs while generic dump_stack() can't do that
reliably. It can be compensated by inlining dump_stack() but not
sure whether that'd be necessary.
* Most archs didn't use to print debug info on dump_stack(). They do
now.
An example WARN dump follows.
WARNING: at kernel/workqueue.c:4841 init_workqueues+0x35/0x505()
Hardware name: empty
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.9.0-rc1-work+ #9
0000000000000009 ffff88007c861e08 ffffffff81c614dc ffff88007c861e48
ffffffff8108f50f ffffffff82228240 0000000000000040 ffffffff8234a03c
0000000000000000 0000000000000000 0000000000000000 ffff88007c861e58
Call Trace:
[<ffffffff81c614dc>] dump_stack+0x19/0x1b
[<ffffffff8108f50f>] warn_slowpath_common+0x7f/0xc0
[<ffffffff8108f56a>] warn_slowpath_null+0x1a/0x20
[<ffffffff8234a071>] init_workqueues+0x35/0x505
...
v2: CPU number added to the generic debug info as requested by s390
folks and dropped the s390 specific dump_stack(). This loses %ksp
from the debug message which the maintainers think isn't important
enough to keep the s390-specific dump_stack() implementation.
dump_stack_print_info() is moved to kernel/printk.c from
lib/dump_stack.c. Because linkage is per objecct file,
dump_stack_print_info() living in the same lib file as generic
dump_stack() means that archs which implement custom dump_stack()
- at this point, only blackfin - can't use dump_stack_print_info()
as that will bring in the generic version of dump_stack() too. v1
The v1 patch broke build on blackfin due to this issue. The build
breakage was reported by Fengguang Wu.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390 bits]
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon bits]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- ARM big.LITTLE cpufreq driver from Viresh Kumar.
- exynos5440 cpufreq driver from Amit Daniel Kachhap.
- cpufreq core cleanup and code consolidation from Viresh Kumar and
Stratos Karafotis.
- cpufreq scalability improvement from Nathan Zimmer.
- AMD "frequency sensitivity feedback" powersave bias for the ondemand
cpufreq governor from Jacob Shin.
- cpuidle code consolidation and cleanups from Daniel Lezcano.
- ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano.
- ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim,
Lv Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto.
- ACPI core updates related to hotplug from Toshi Kani, Paul Bolle,
Yasuaki Ishimatsu, and Rafael J. Wysocki.
- Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements
from Rafael J. Wysocki and Andy Shevchenko.
/
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Merge tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael J Wysocki:
- ARM big.LITTLE cpufreq driver from Viresh Kumar.
- exynos5440 cpufreq driver from Amit Daniel Kachhap.
- cpufreq core cleanup and code consolidation from Viresh Kumar and
Stratos Karafotis.
- cpufreq scalability improvement from Nathan Zimmer.
- AMD "frequency sensitivity feedback" powersave bias for the ondemand
cpufreq governor from Jacob Shin.
- cpuidle code consolidation and cleanups from Daniel Lezcano.
- ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano.
- ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim, Lv
Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto.
- ACPI core updates related to hotplug from Toshi Kani, Paul Bolle,
Yasuaki Ishimatsu, and Rafael J Wysocki.
- Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements from
Rafael J Wysocki and Andy Shevchenko.
* tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (192 commits)
cpufreq: Revert incorrect commit 5800043
cpufreq: MAINTAINERS: Add co-maintainer
cpuidle: add maintainer entry
ACPI / thermal: do not always return THERMAL_TREND_RAISING for active trip points
ARM: s3c64xx: cpuidle: use init/exit common routine
cpufreq: pxa2xx: initialize variables
ACPI: video: correct acpi_video_bus_add error processing
SH: cpuidle: use init/exit common routine
ARM: S5pv210: compiling issue, ARM_S5PV210_CPUFREQ needs CONFIG_CPU_FREQ_TABLE=y
ACPI: Fix wrong parameter passed to memblock_reserve
cpuidle: fix comment format
pnp: use %*phC to dump small buffers
isapnp: remove debug leftovers
ARM: imx: cpuidle: use init/exit common routine
ARM: davinci: cpuidle: use init/exit common routine
ARM: kirkwood: cpuidle: use init/exit common routine
ARM: calxeda: cpuidle: use init/exit common routine
ARM: tegra: cpuidle: use init/exit common routine for tegra3
ARM: tegra: cpuidle: use init/exit common routine for tegra2
ARM: OMAP4: cpuidle: use init/exit common routine
...
Pull SMP/hotplug changes from Ingo Molnar:
"This is a pretty large, multi-arch series unifying and generalizing
the various disjunct pieces of idle routines that architectures have
historically copied from each other and have grown in random, wildly
inconsistent and sometimes buggy directions:
101 files changed, 455 insertions(+), 1328 deletions(-)
this went through a number of review and test iterations before it was
committed, it was tested on various architectures, was exposed to
linux-next for quite some time - nevertheless it might cause problems
on architectures that don't read the mailing lists and don't regularly
test linux-next.
This cat herding excercise was motivated by the -rt kernel, and was
brought to you by Thomas "the Whip" Gleixner."
* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits)
idle: Remove GENERIC_IDLE_LOOP config switch
um: Use generic idle loop
ia64: Make sure interrupts enabled when we "safe_halt()"
sparc: Use generic idle loop
idle: Remove unused ARCH_HAS_DEFAULT_IDLE
bfin: Fix typo in arch_cpu_idle()
xtensa: Use generic idle loop
x86: Use generic idle loop
unicore: Use generic idle loop
tile: Use generic idle loop
tile: Enter idle with preemption disabled
sh: Use generic idle loop
score: Use generic idle loop
s390: Use generic idle loop
powerpc: Use generic idle loop
parisc: Use generic idle loop
openrisc: Use generic idle loop
mn10300: Use generic idle loop
mips: Use generic idle loop
microblaze: Use generic idle loop
...
Merge second batch of fixes from Andrew Morton:
- various misc bits
- some printk updates
- a new "SRAM" driver.
- MAINTAINERS updates
- the backlight driver queue
- checkpatch updates
- a few init/ changes
- a huge number of drivers/rtc changes
- fatfs updates
- some lib/idr.c work
- some renaming of the random driver interfaces
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (285 commits)
net: rename random32 to prandom
net/core: remove duplicate statements by do-while loop
net/core: rename random32() to prandom_u32()
net/netfilter: rename random32() to prandom_u32()
net/sched: rename random32() to prandom_u32()
net/sunrpc: rename random32() to prandom_u32()
scsi: rename random32() to prandom_u32()
lguest: rename random32() to prandom_u32()
uwb: rename random32() to prandom_u32()
video/uvesafb: rename random32() to prandom_u32()
mmc: rename random32() to prandom_u32()
drbd: rename random32() to prandom_u32()
kernel/: rename random32() to prandom_u32()
mm/: rename random32() to prandom_u32()
lib/: rename random32() to prandom_u32()
x86: rename random32() to prandom_u32()
x86: pageattr-test: remove srandom32 call
uuid: use prandom_bytes()
raid6test: use prandom_bytes()
sctp: convert sctp_assoc_set_id() to use idr_alloc_cyclic()
...
The early console implementations are the same all over the place. Move
the print function to kernel/printk and get rid of the copies.
[akpm@linux-foundation.org: arch/mips/kernel/early_printk.c needs kernel.h for va_list]
[paul.gortmaker@windriver.com: sh4: make the bios early console support depend on EARLY_PRINTK]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Richard Weinberger <richard@nod.at>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge first batch of fixes from Andrew Morton:
- A couple of kthread changes
- A few minor audit patches
- A number of fbdev patches. Florian remains AWOL so I'm picking up
some of these.
- A few kbuild things
- ocfs2 updates
- Almost all of the MM queue
(And in the meantime, I already have the second big batch from Andrew
pending in my mailbox ;^)
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (149 commits)
memcg: take reference before releasing rcu_read_lock
mem hotunplug: fix kfree() of bootmem memory
mmKconfig: add an option to disable bounce
mm, nobootmem: do memset() after memblock_reserve()
mm, nobootmem: clean-up of free_low_memory_core_early()
fs/buffer.c: remove unnecessary init operation after allocating buffer_head.
numa, cpu hotplug: change links of CPU and node when changing node number by onlining CPU
mm: fix memory_hotplug.c printk format warning
mm: swap: mark swap pages writeback before queueing for direct IO
swap: redirty page if page write fails on swap file
mm, memcg: give exiting processes access to memory reserves
thp: fix huge zero page logic for page with pfn == 0
memcg: avoid accessing memcg after releasing reference
fs: fix fsync() error reporting
memblock: fix missing comment of memblock_insert_region()
mm: Remove unused parameter of pages_correctly_reserved()
firmware, memmap: fix firmware_map_entry leak
mm/vmstat: add note on safety of drain_zonestat
mm: thp: add split tail pages to shrink page list in page reclaim
mm: allow for outstanding swap writeback accounting
...
A fairly quiet release for SPI, mainly driver work. A few highlights:
- Supports bits per word compatibility checking in the core.
- Allow use of the IP used in Freescale SPI controllers outside
Freescale SoCs.
- DMA support for the Atmel SPI driver.
- New drivers for the BCM2835 and Tegra114.
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Merge tag 'spi-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"A fairly quiet release for SPI, mainly driver work. A few highlights:
- Supports bits per word compatibility checking in the core.
- Allow use of the IP used in Freescale SPI controllers outside
Freescale SoCs.
- DMA support for the Atmel SPI driver.
- New drivers for the BCM2835 and Tegra114"
* tag 'spi-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (68 commits)
spi-topcliff-pch: fix to use list_for_each_entry_safe() when delete list items
spi-topcliff-pch: missing platform_driver_unregister() on error in pch_spi_init()
ARM: dts: add pinctrl property for spi node for atmel SoC
ARM: dts: add spi nodes for the atmel boards
ARM: dts: add spi nodes for atmel SoC
ARM: at91: add clocks for spi dt entries
spi/spi-atmel: add dmaengine support
spi/spi-atmel: add flag to controller data for lock operations
spi/spi-atmel: add physical base address
spi/sirf: fix MODULE_DEVICE_TABLE
MAINTAINERS: Add git repository and update my address
spi/s3c64xx: Check for errors in dmaengine prepare_transfer()
spi/s3c64xx: Fix non-dmaengine usage
spi: omap2-mcspi: fix error return code in omap2_mcspi_probe()
spi/s3c64xx: let device core setup the default pin configuration
MAINTAINERS: Update Grant's email address and maintainership
spi: omap2-mcspi: Fix transfers if DMADEVICES is not set
spi: s3c64xx: move to generic dmaengine API
spi-gpio: init CS before spi_bitbang_setup()
spi: spi-mpc512x-psc: let transmiter/receiver enabled when in xfer loop
...
Commit abf09bed3c ("s390/mm: implement software dirty bits")
introduced another difference in the pte layout vs. the pmd layout on
s390, thoroughly breaking the s390 support for hugetlbfs. This requires
replacing some more pte_xxx functions in mm/hugetlbfs.c with a
huge_pte_xxx version.
This patch introduces those huge_pte_xxx functions and their generic
implementation in asm-generic/hugetlb.h, which will now be included on
all architectures supporting hugetlbfs apart from s390. This change
will be a no-op for those architectures.
[akpm@linux-foundation.org: fix warning]
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Hillf Danton <dhillf@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.cz> [for !s390 parts]
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use helper function free_highmem_page() to free highmem pages into
the buddy system.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Daney <david.daney@cavium.com>
Cc: Cong Wang <amwang@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use common help functions to free reserved pages.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Don't use create_proc_read_entry() as that is deprecated, but rather use
proc_create_data() and seq_file instead.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Ralf Baechle <ralf@linux-mips.org>
cc: linux-mips@linux-mips.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Here's the big USB pull request for 3.10-rc1.
Lots of USB patches here, the majority being USB gadget changes and
USB-serial driver cleanups, the rest being ARM build fixes / cleanups,
and individual driver updates. We also finally got some chipidea fixes,
which have been delayed for a number of kernel releases, as the
maintainer has now reappeared.
All of these have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB patches from Greg Kroah-Hartman:
"Here's the big USB pull request for 3.10-rc1.
Lots of USB patches here, the majority being USB gadget changes and
USB-serial driver cleanups, the rest being ARM build fixes / cleanups,
and individual driver updates. We also finally got some chipidea
fixes, which have been delayed for a number of kernel releases, as the
maintainer has now reappeared.
All of these have been in linux-next for a while"
* tag 'usb-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (568 commits)
USB: ehci-msm: USB_MSM_OTG needs USB_PHY
USB: OHCI: avoid conflicting platform drivers
USB: OMAP: ISP1301 needs USB_PHY
USB: lpc32xx: ISP1301 needs USB_PHY
USB: ftdi_sio: enable two UART ports on ST Microconnect Lite
usb: phy: tegra: don't call into tegra-ehci directly
usb: phy: phy core cannot yet be a module
USB: Fix initconst in ehci driver
usb-storage: CY7C68300A chips do not support Cypress ATACB
USB: serial: option: Added support Olivetti Olicard 145
USB: ftdi_sio: correct ST Micro Connect Lite PIDs
ARM: mxs_defconfig: add CONFIG_USB_PHY
ARM: imx_v6_v7_defconfig: add CONFIG_USB_PHY
usb: phy: remove exported function from __init section
usb: gadget: zero: put function instances on unbind
usb: gadget: f_sourcesink.c: correct a copy-paste misnomer
usb: gadget: cdc2: fix error return code in cdc_do_config()
usb: gadget: multi: fix error return code in rndis_do_config()
usb: gadget: f_obex: fix error return code in obex_bind()
USB: storage: convert to use module_usb_driver()
...
* pm-cpufreq: (57 commits)
cpufreq: MAINTAINERS: Add co-maintainer
cpufreq: pxa2xx: initialize variables
ARM: S5pv210: compiling issue, ARM_S5PV210_CPUFREQ needs CONFIG_CPU_FREQ_TABLE=y
cpufreq: cpu0: Put cpu parent node after using it
cpufreq: ARM big LITTLE: Adapt to latest cpufreq updates
cpufreq: ARM big LITTLE: put DT nodes after using them
cpufreq: Don't call __cpufreq_governor() for drivers without target()
cpufreq: exynos5440: Protect OPP search calls with RCU lock
cpufreq: dbx500: Round to closest available freq
cpufreq: Call __cpufreq_governor() with correct policy->cpus mask
cpufreq / intel_pstate: Optimize intel_pstate_set_policy
cpufreq: OMAP: instantiate omap-cpufreq as a platform_driver
arm: exynos: Enable OPP library support for exynos5440
cpufreq: exynos: Remove error return even if no soc is found
cpufreq: exynos: Add cpufreq driver for exynos5440
cpufreq: AMD "frequency sensitivity feedback" powersave bias for ondemand governor
cpufreq: ondemand: allow custom powersave_bias_target handler to be registered
cpufreq: convert cpufreq_driver to using RCU
cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq
cpufreq: sparc: move cpufreq driver to drivers/cpufreq
...
Conflicts:
MAINTAINERS (with commit a8e39c3 from pm-cpuidle)
drivers/cpufreq/cpufreq_governor.h (with commit beb0ff3)
We were doing:
SRL $r,$?,16
ANDI $r,$r,0xffff
The logical right shift by 16 leaves the upper 16 bits clear, so the
subsequent masking out of those bits is redundant, and can safely be
removed.
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This reverts commit c17a655478.
Manuel Lauss writes:
lmo commit c17a6554 (MIPS: page.h: Provide more readable definition for
PAGE_MASK) apparently breaks ioremap of 36-bit addresses on my Alchemy
systems (PCI and PCMCIA) The reason is that in arch/mips/mm/ioremap.c
line 157 (phys_addr &= PAGE_MASK) bits 32-35 are cut off. Seems the
new PAGE_MASK is explicitly 32bit, or one could make it signed instead
of unsigned long.
GENERIC_GPIO has been made equivalent to GPIOLIB in architecture code
and all driver code has been switch to depend on GPIOLIB. It is thus
safe to have GENERIC_GPIO removed.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
7837314d14 [MIPS: Get rid of branches to
.subsections] removed most uses of .subsection] removed most uses of
.subsection in inline assembler code.
It left the instances in spinlock.h alone because we knew their use was
in fairly small files where .subsection use was fine but of course this
was a fragile assumption. LTO breaks this assumption resulting in build
errors due to exceeded branch range, so remove further instances of
.subsection.
The two functions that still use .macro don't currently cause issues
however this use is still fragile.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Without, the LTO compiler will complain:
[...]
LD init/built-in.o
LDFINAL vmlinux.o
arch/mips/sgi-ip27/ip27-irq.c:379:22: warning: type of ‘rt_timer_irq’ does not match original declaration [enabled by default]
extern unsigned int rt_timer_irq;
^
arch/mips/sgi-ip27/ip27-timer.c:72:5: note: previously declared here
int rt_timer_irq;
^
MODPOST vmlinux.o
[...]
And without LTO, it's still good stile to things match.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Without this, it's possible that LTO will discard the calls to
set_except_vector() in the probe for the DADDI overflow bug resulting in a
kernel crash like this:
[...]
Mount-cache hash table entries: 256
Checking for the daddi bug... Integer overflow[#1]:
Cpu 0
$ 0 : 0000000000000000 0000000010008ce1 0000000000000001 0000000000000000
$ 4 : 7fffffffffffedcd ffffffff81410000 0000000000000030 000000000000003f
[...]
There are other similar places in the kernel so we've just been lucky
that GCC's been tolerant.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
tlbmiss_handler_setup_pgd is run-time generated code and it was convenient
to pretend the symbol was an array in the generator but a function for
the users. LTO gcc won't tolerate this kind of lie anymore so solve the
problem through a cast and function pointer instead.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The code was written as it is because it's more expressive, a bit easier.
But it's always been dirty, if not a bug. But we can't cheat with LTO
compilers, so this results in:
[...]
LDFINAL vmlinux.o
In file included from arch/mips/kernel/topology.c:604:0,
from arch/mips/kernel/time.c:212,
from arch/mips/kernel/syscall.c:300,
from arch/mips/kernel/signal.c:853,
from arch/mips/kernel/setup.c:1030,
from arch/mips/kernel/reset.c:354,
from arch/mips/kernel/ptrace.c:562,
from arch/mips/kernel/process.c:770,
from arch/mips/kernel/irq.c:350,
from arch/mips/kernel/branch.c:321,
from arch/mips/kernel/cpu-probe.c:1370,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/thread_info.h:345,
from arch/mips/sgi-ip22/ip22-gio.c:660,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/sgialib.h:219,
from arch/mips/sgi-ip22/ip22-reset.c:224,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/paccess.h:116,
from arch/mips/sgi-ip22/ip22-nvram.c:334,
from include/linux/kernel_stat.h:79,
from arch/mips/sgi-ip22/ip22-int.c:592,
from arch/mips/sgi-ip22/ip22-hpc.c:470,
from arch/mips/sgi-ip22/ip22-mc.c:135,
from init/init_task.c:54,
from init/calibrate.c:744,
from init/noinitramfs.c:62,
from init/do_mounts.c:573,
from init/version.c:1009,
from init/main.c:777,
from :729:
arch/mips/kernel/traps.c:63:49: error: variable ‘handle_tlbl’ redeclared as function
In file included from arch/mips/mm/page.c:310:0,
from arch/mips/mm/mmap.c:208,
from arch/mips/mm/init.c:641,
from arch/mips/mm/gup.c:811,
from arch/mips/mm/fault.c:659,
from include/linux/module.h:682,
from arch/mips/mm/dma-default.c:161,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/thread_info.h:397,
from arch/mips/kernel/i8253.c:538,
from arch/mips/kernel/proc.c:145,
from arch/mips/kernel/irq_cpu.c:129,
from arch/mips/kernel/i8259.c:229,
from include/uapi/linux/elf.h:251,
from arch/mips/kernel/mips_ksyms.c:129,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/time.h:50,
from arch/mips/kernel/cevt-r4k.c:90,
from arch/mips/kernel/vdso.c:136,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/thread_info.h:351,
from arch/mips/kernel/unaligned.c:809,
from arch/mips/kernel/traps.c:1720,
from arch/mips/kernel/topology.c:684,
from arch/mips/kernel/time.c:212,
from arch/mips/kernel/syscall.c:300,
from arch/mips/kernel/signal.c:853,
from arch/mips/kernel/setup.c:1030,
from arch/mips/kernel/reset.c:354,
from arch/mips/kernel/ptrace.c:562,
from arch/mips/kernel/process.c:770,
from arch/mips/kernel/irq.c:350,
from arch/mips/kernel/branch.c:321,
from arch/mips/kernel/cpu-probe.c:1370,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/thread_info.h:345,
from arch/mips/sgi-ip22/ip22-gio.c:660,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/sgialib.h:219,
from arch/mips/sgi-ip22/ip22-reset.c:224,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/paccess.h:116,
from arch/mips/sgi-ip22/ip22-nvram.c:334,
from include/linux/kernel_stat.h:79,
from arch/mips/sgi-ip22/ip22-int.c:592,
from arch/mips/sgi-ip22/ip22-hpc.c:470,
from arch/mips/sgi-ip22/ip22-mc.c:135,
from init/init_task.c:54,
from init/calibrate.c:744,
from init/noinitramfs.c:62,
from init/do_mounts.c:573,
from init/version.c:1009,
from init/main.c:777,
from :729:
arch/mips/mm/tlbex.c:1448:5: note: previously declared here
In file included from arch/mips/kernel/topology.c:604:0,
from arch/mips/kernel/time.c:212,
from arch/mips/kernel/syscall.c:300,
from arch/mips/kernel/signal.c:853,
from arch/mips/kernel/setup.c:1030,
from arch/mips/kernel/reset.c:354,
from arch/mips/kernel/ptrace.c:562,
from arch/mips/kernel/process.c:770,
from arch/mips/kernel/irq.c:350,
from arch/mips/kernel/branch.c:321,
from arch/mips/kernel/cpu-probe.c:1370,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/thread_info.h:345,
from arch/mips/sgi-ip22/ip22-gio.c:660,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/sgialib.h:219,
from arch/mips/sgi-ip22/ip22-reset.c:224,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/paccess.h:116,
from arch/mips/sgi-ip22/ip22-nvram.c:334,
from include/linux/kernel_stat.h:79,
from arch/mips/sgi-ip22/ip22-int.c:592,
from arch/mips/sgi-ip22/ip22-hpc.c:470,
from arch/mips/sgi-ip22/ip22-mc.c:135,
from init/init_task.c:54,
from init/calibrate.c:744,
from init/noinitramfs.c:62,
from init/do_mounts.c:573,
from init/version.c:1009,
from init/main.c:777,
from :729:
arch/mips/kernel/traps.c:62:49: error: variable ‘handle_tlbm’ redeclared as function
In file included from arch/mips/mm/page.c:310:0,
from arch/mips/mm/mmap.c:208,
from arch/mips/mm/init.c:641,
from arch/mips/mm/gup.c:811,
from arch/mips/mm/fault.c:659,
from include/linux/module.h:682,
from arch/mips/mm/dma-default.c:161,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/thread_info.h:397,
from arch/mips/kernel/i8253.c:538,
from arch/mips/kernel/proc.c:145,
from arch/mips/kernel/irq_cpu.c:129,
from arch/mips/kernel/i8259.c:229,
from include/uapi/linux/elf.h:251,
from arch/mips/kernel/mips_ksyms.c:129,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/time.h:50,
from arch/mips/kernel/cevt-r4k.c:90,
from arch/mips/kernel/vdso.c:136,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/thread_info.h:351,
from arch/mips/kernel/unaligned.c:809,
from arch/mips/kernel/traps.c:1720,
from arch/mips/kernel/topology.c:684,
from arch/mips/kernel/time.c:212,
from arch/mips/kernel/syscall.c:300,
from arch/mips/kernel/signal.c:853,
from arch/mips/kernel/setup.c:1030,
from arch/mips/kernel/reset.c:354,
from arch/mips/kernel/ptrace.c:562,
from arch/mips/kernel/process.c:770,
from arch/mips/kernel/irq.c:350,
from arch/mips/kernel/branch.c:321,
from arch/mips/kernel/cpu-probe.c:1370,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/thread_info.h:345,
from arch/mips/sgi-ip22/ip22-gio.c:660,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/sgialib.h:219,
from arch/mips/sgi-ip22/ip22-reset.c:224,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/paccess.h:116,
from arch/mips/sgi-ip22/ip22-nvram.c:334,
from include/linux/kernel_stat.h:79,
from arch/mips/sgi-ip22/ip22-int.c:592,
from arch/mips/sgi-ip22/ip22-hpc.c:470,
from arch/mips/sgi-ip22/ip22-mc.c:135,
from init/init_task.c:54,
from init/calibrate.c:744,
from init/noinitramfs.c:62,
from init/do_mounts.c:573,
from init/version.c:1009,
from init/main.c:777,
from :729:
arch/mips/mm/tlbex.c:1450:5: note: previously declared here
In file included from arch/mips/kernel/topology.c:604:0,
from arch/mips/kernel/time.c:212,
from arch/mips/kernel/syscall.c:300,
from arch/mips/kernel/signal.c:853,
from arch/mips/kernel/setup.c:1030,
from arch/mips/kernel/reset.c:354,
from arch/mips/kernel/ptrace.c:562,
from arch/mips/kernel/process.c:770,
from arch/mips/kernel/irq.c:350,
from arch/mips/kernel/branch.c:321,
from arch/mips/kernel/cpu-probe.c:1370,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/thread_info.h:345,
from arch/mips/sgi-ip22/ip22-gio.c:660,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/sgialib.h:219,
from arch/mips/sgi-ip22/ip22-reset.c:224,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/paccess.h:116,
from arch/mips/sgi-ip22/ip22-nvram.c:334,
from include/linux/kernel_stat.h:79,
from arch/mips/sgi-ip22/ip22-int.c:592,
from arch/mips/sgi-ip22/ip22-hpc.c:470,
from arch/mips/sgi-ip22/ip22-mc.c:135,
from init/init_task.c:54,
from init/calibrate.c:744,
from init/noinitramfs.c:62,
from init/do_mounts.c:573,
from init/version.c:1009,
from init/main.c:777,
from :729:
arch/mips/kernel/traps.c:64:49: error: variable ‘handle_tlbs’ redeclared as function
In file included from arch/mips/mm/page.c:310:0,
from arch/mips/mm/mmap.c:208,
from arch/mips/mm/init.c:641,
from arch/mips/mm/gup.c:811,
from arch/mips/mm/fault.c:659,
from include/linux/module.h:682,
from arch/mips/mm/dma-default.c:161,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/thread_info.h:397,
from arch/mips/kernel/i8253.c:538,
from arch/mips/kernel/proc.c:145,
from arch/mips/kernel/irq_cpu.c:129,
from arch/mips/kernel/i8259.c:229,
from include/uapi/linux/elf.h:251,
from arch/mips/kernel/mips_ksyms.c:129,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/time.h:50,
from arch/mips/kernel/cevt-r4k.c:90,
from arch/mips/kernel/vdso.c:136,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/thread_info.h:351,
from arch/mips/kernel/unaligned.c:809,
from arch/mips/kernel/traps.c:1720,
from arch/mips/kernel/topology.c:684,
from arch/mips/kernel/time.c:212,
from arch/mips/kernel/syscall.c:300,
from arch/mips/kernel/signal.c:853,
from arch/mips/kernel/setup.c:1030,
from arch/mips/kernel/reset.c:354,
from arch/mips/kernel/ptrace.c:562,
from arch/mips/kernel/process.c:770,
from arch/mips/kernel/irq.c:350,
from arch/mips/kernel/branch.c:321,
from arch/mips/kernel/cpu-probe.c:1370,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/thread_info.h:345,
from arch/mips/sgi-ip22/ip22-gio.c:660,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/sgialib.h:219,
from arch/mips/sgi-ip22/ip22-reset.c:224,
from /fluff/home/ralf/src/linux/lto/linux-misc/arch/mips/include/asm/paccess.h:116,
from arch/mips/sgi-ip22/ip22-nvram.c:334,
from include/linux/kernel_stat.h:79,
from arch/mips/sgi-ip22/ip22-int.c:592,
from arch/mips/sgi-ip22/ip22-hpc.c:470,
from arch/mips/sgi-ip22/ip22-mc.c:135,
from init/init_task.c:54,
from init/calibrate.c:744,
from init/noinitramfs.c:62,
from init/do_mounts.c:573,
from init/version.c:1009,
from init/main.c:777,
from :729:
arch/mips/mm/tlbex.c:1449:5: note: previously declared here
lto1: fatal error: errors during merging of translation units
compilation terminated.
lto-wrapper: /usr/bin/mips-linux-gcc returned 1 exit status
/usr/lib64/gcc/mips-linux/4.7.1/../../../../mips-linux/bin/ld: lto-wrapper failed
collect2: error: ld returned 1 exit status
make: *** [vmlinux] Error 1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
With LTE this fixes this issue:
LDFINAL vmlinux.o
arch/mips/built-in.o (symbol from plugin): In function `sgimc_init':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
kernel/built-in.o (symbol from plugin): In function `get_task_mm':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
mm/built-in.o (symbol from plugin): In function `iov_iter_single_seg_count':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
fs/built-in.o (symbol from plugin): In function `finish_no_open':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
ipc/built-in.o (symbol from plugin): In function `ipc_init_ids':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
security/built-in.o (symbol from plugin): In function `key_schedule_gc':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
crypto/built-in.o (symbol from plugin): In function `crypto_find_alg':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
block/built-in.o (symbol from plugin): In function `elv_rb_find':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
argv_split.o (symbol from plugin): In function `argv_free':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
dec_and_lock.o (symbol from plugin): In function `_atomic_dec_and_lock':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
extable.o (symbol from plugin): In function `sort_extable':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
flex_proportions.o (symbol from plugin): In function `fprop_global_init':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
idr.o (symbol from plugin): In function `idr_for_each':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
is_single_threaded.o (symbol from plugin): In function `current_is_single_threaded':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
kobject.o (symbol from plugin): In function `kobject_get':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
kobject_uevent.o (symbol from plugin): In function `add_uevent_var':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
plist.o (symbol from plugin): In function `plist_add':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
radix-tree.o (symbol from plugin): In function `radix_tree_lookup_slot':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
ratelimit.o (symbol from plugin): In function `___ratelimit':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
rwsem-spinlock.o (symbol from plugin): In function `__init_rwsem':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
show_mem.o (symbol from plugin): In function `show_mem':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
timerqueue.o (symbol from plugin): In function `timerqueue_iterate_next':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
vsprintf.o (symbol from plugin): In function `simple_strtoull':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
delay.o (symbol from plugin): In function `__delay':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
mips-atomic.o (symbol from plugin): In function `arch_local_irq_disable':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
uncached.o (symbol from plugin): In function `run_uncached':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
lib/built-in.o (symbol from plugin): In function `_bcd2bin':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
arch/mips/lib/built-in.o (symbol from plugin): In function `ioread8':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
drivers/built-in.o (symbol from plugin): In function `fb_notifier_call_chain':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
net/built-in.o (symbol from plugin): In function `sock_from_file':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
klist.o (symbol from plugin): In function `klist_init':
(.text+0x0): multiple definition of `$28'
init/built-in.o (symbol from plugin):(.text+0x0): first defined here
It also makes the code a little more readable, so let's merge it.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The of_node field of the device assigned to a
PCI bus is used during scanning of the PCI bus.
However on MIPS, the of_node field is assigned
only after the bus has been scanned.
Implement the architecture specific version of
'pcibios_get_phb_of_node'. Which ensures that the
PCI driver core will initialize the of_node field
before starting the scan.
Also remove the local assignment of bus->dev.of_node,
it is not needed after the patch.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This patch moves cpufreq driver of MIPS architecture to drivers/cpufreq.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Just like the OHCI counter part we just can remove the architecture
specific symbols which prevent these configuration symbols from being
selected by platforms/architectures requiring it. The original
implementation did not scale at all since it required each and every
single architecture to be added for these configuration symbols to be
selected. Now it is up to the EHCI driver and/or platform to select
these configuration symbols accordingly.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The only part of proc_dir_entry the code outside of fs/proc
really cares about is PDE(inode)->data. Provide a helper
for that; static inline for now, eventually will be moved
to fs/proc, along with the knowledge of struct proc_dir_entry
layout.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
With the addition of transparent huge pages, pgtable.h uses struct page.
However, it is possible to include pgtable.h without anything defining
struct page. So add the include to get it.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
speed_hz is a write only member, so we can safely remove it and its
generation. Also fixes the missing clk_put after getting the periph
clock.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Conflicts:
drivers/nfc/microread/mei.c
net/netfilter/nfnetlink_queue_core.c
Pull in 'net' to get Eric Biederman's AF_UNIX fix, upon which
some cleanups are going to go on-top.
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull MIPS fixes from Ralf Baechle:
"Fixes for a number of small glitches in various corners of the MIPS
tree. No particular areas is standing out.
With this applied all MIPS defconfigs are building fine. No merge
conflicts are expected."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Delete definition of SA_RESTORER.
MIPS: Fix ISA level which causes secondary cache init bypassing and more
MIPS: Fix build error cavium-octeon without CONFIG_SMP
MIPS: Kconfig: Rename SNIPROM too
MIPS: Alchemy: Fix typo "CONFIG_DEBUG_PCI"
MIPS: Unbreak function tracer for 64-bit kernel.
SA_RESTORER used to be defined as 0x04000000 but only the O32 ABI ever
supported its use and no libc was using it, so the entire sa-restorer
functionality was removed with lmo commit 39bffc12c3580ab [Zap sa_restorer.]
for 2.5.48 retaining only the SA_RESTORER definition as a reminder to avoid
accidental reuse of the mask bit.
Upstream cdef9602fbf1871a43f0f1b5cea10dd0f275167d [signal: always clear
sa_restorer on execve] adds code that assumes sa_sigaction has an
sa_restorer field, if SA_RESTORER is defined which would break MIPS.
So remove the SA_RESTORER definition before the v3.8.4 merge.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
(cherry picked from commit 17da8d63add23830892ac4dc2cbb3b5d4ffb79a8)
The commit a96102be70 introduced set_isa() where compatible ISA info is
also set aside from the one gets passed in. It means, for example, 1004K
will have MIPS_CPU_ISA_M32R2/M32R1/II/I flags. This leads to things like
the following inappropriate:
if (c->isa_level == MIPS_CPU_ISA_M32R1 ||
c->isa_level == MIPS_CPU_ISA_M32R2 ||
c->isa_level == MIPS_CPU_ISA_M64R1 ||
c->isa_level == MIPS_CPU_ISA_M64R2)
This patch fixes it.
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Commit 7517de3486 ("MIPS: Alchemy: Redo
PCI as platform driver") added a reference to CONFIG_DEBUG_PCI. Change
it to CONFIG_PCI_DEBUG, as that is a valid Kconfig macro.
Also add a newline to a debugging printk that this fix enables.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Commit 58b69401c7 [MIPS: Function tracer: Fix broken function tracing]
completely broke the function tracer for 64-bit kernels. The symptom is
a system hang very early in the boot process.
The fix: Remove/fix $sp adjustments for 64-bit case.
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: Al Cooper <alcooperx@gmail.com>
Cc: viric@viric.name
Cc: stable@vger.kernel.org # 3.8.x
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Pull MIPS fixes from Ralf Baechle:
"A collection of fixes pretty much across the MIPS code. Even the
change to include/linux/signal.h by David Howells' 2a1486981c ("Fix
breakage in MIPS siginfo handling") should be considered MIPS-specific
as it touches an ifdefed segment that is only relevant to MIPS and
which unfortunately can't be made to go away entirely."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
Fix breakage in MIPS siginfo handling
Revert "MIPS: BCM63XX: Call board_register_device from device_initcall()"
MIPS: BCM63XX: Make nvram checksum failure non fatal
MIPS: Fix code generation for non-DSP capable CPUs
MIPS: Fix inconsistent formatting inside /proc/cpuinfo
MIPS: SEAD3: Enable LL/SC.
MIPS: Get rid of CONFIG_CPU_HAS_LLSC again
MIPS: Add dependencies for HAVE_ARCH_TRANSPARENT_HUGEPAGE
MIPS: VR4133: Fix probe for LL/SC.
MIPS: Fix logic errors in bitops.c
MIPS: Use CONFIG_CPU_MIPSR2 in csum_partial.S
MIPS: compat: Return same error ENOSYS as native for invalid operation.
cpufreq layer doesn't call cpufreq driver's callback for any offline
CPU and so checking that isn't useful.
Lets get rid of it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
policy->cpus contains all online cpus that have single shared clock line. And
their frequencies are always updated together.
Many SMP system's cpufreq drivers take care of this in individual drivers but
the best place for this code is in cpufreq core.
This patch modifies cpufreq_notify_transition() to notify frequency change for
all cpus in policy->cpus and hence updates all users of this API.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Currently, when a socket receives something on the error queue it only wakes up
the socket on select if it is in the "read" list, that is the socket has
something to read. It is useful also to wake the socket if it is in the error
list, which would enable software to wait on error queue packets without waking
up for regular data on the socket. The main use case is for receiving
timestamped transmit packets which return the timestamp to the socket via the
error queue. This enables an application to select on the socket for the error
queue only instead of for the regular traffic.
-v2-
* Added the SO_SELECT_ERR_QUEUE socket option to every architechture specific file
* Modified every socket poll function that checks error queue
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Jeffrey Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Matthew Vick <matthew.vick@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
pnx833x does not seem to use the generic gpio API.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
The GPIO driver for txx9 requires gpiolib, so this is more accurate and
let us get rid of one mention of GENERIC_GPIO which is due to disappear.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
The GPIO driver uses gpiolib, thus it should be compiled when
CONFIG_GPIOLIB is defined and not only CONFIG_GENERIC_GPIO.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
MIPS's siginfo handling has been broken since this commit:
commit 574c4866e3
Author: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun Nov 25 22:24:19 2012 -0500
consolidate kernel-side struct sigaction declarations
for 64-bit BE MIPS CPUs.
The UAPI variant looks like this:
struct sigaction {
unsigned int sa_flags;
__sighandler_t sa_handler;
sigset_t sa_mask;
};
but the core kernel's variant looks like this:
struct sigaction {
#ifndef __ARCH_HAS_ODD_SIGACTION
__sighandler_t sa_handler;
unsigned long sa_flags;
#else
unsigned long sa_flags;
__sighandler_t sa_handler;
#endif
#ifdef __ARCH_HAS_SA_RESTORER
__sigrestore_t sa_restorer;
#endif
sigset_t sa_mask;
};
The problem is that sa_flags has been changed from an unsigned int to an
unsigned long.
Fix this by making sa_flags unsigned int if __ARCH_HAS_ODD_SIGACTION is
defined.
Whilst we're at it, rename __ARCH_HAS_ODD_SIGACTION to
__ARCH_HAS_IRIX_SIGACTION.
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit causes a race between PCI scan and SSB fallback SPROM handler
registration, causing the wifi to not work on slower systems. The only
subsystem touched from board_register_devices is platform device
registration, which is safe as an arch init call.
This reverts commit d64ed7ada2 [MIPS:
BCM63XX: Call board_register_device from device_initcall()].
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
To: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Some vendors modify the nvram layout moving the checksum to a different
place or dropping entirely, so reduce the checksum failure to a warning.
Reported-by: Álvaro Fernández Rojas <noltari@gmail.com>
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: John Crispin <blogic@openwrt.org>
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Commit 32a7ede (MIPS: dsp: Add assembler support for DSP ASEs) has
enabled the use of DSP ASE specific instructions such as rddsp and wrdsp
under the idea that all code path that will make use of these two
instructions are properly checking for cpu_has_dsp to ensure that the
particular CPU we are running on *actually* supports DSP ASE.
This commit actually causes the following oops on QEMU Malta emulating a
MIPS 24Kc without the DSP ASE implemented:
[ 7.960000] Reserved instruction in kernel
[ 7.960000] Cpu 0
[ 7.960000] $ 0 : 00000000 00000000 00000014 00000005
[ 7.960000] $ 4 : 8fc2de48 00000001 00000000 8f59ddb0
[ 7.960000] $ 8 : 8f5ceec4 00000018 00000c00 00800000
[ 7.960000] $12 : 00000100 00000200 00000000 00457b84
[ 7.960000] $16 : 00000000 8fc2ba78 8f4ec980 00000001
[ 7.960000] $20 : 80418f90 00000000 00000000 000002dd
[ 7.960000] $24 : 0000009c 7730d7b8
[ 7.960000] $28 : 8f59c000 8f59dd38 00000001 80104248
[ 7.960000] Hi : 0000001d
[ 7.960000] Lo : 0000000b
[ 7.960000] epc : 801041ec thread_saved_pc+0x2c/0x38
[ 7.960000] Not tainted
[ 7.960000] ra : 80104248 get_wchan+0x48/0xac
[ 7.960000] Status: 1000b703 KERNEL EXL IE
[ 7.960000] Cause : 10800028
[ 7.960000] PrId : 00019300 (MIPS 24Kc)
[ 7.960000] Modules linked in:
[ 7.960000] Process killall (pid: 1574, threadinfo=8f59c000,
task=8fd14558, tls=773aa440)
[ 7.960000] Stack : 8fc2ba78 8012b008 0000000c 0000001d 00000000
00000000 8f58a380
8f58a380 8fc2ba78 80202668 8f59de78 8f468600 8f59de28
801b2a3c 8f59df00 8f98ba20 74696e69
8f468600 8f59de28 801b7308 0081c007 00000000 00000000
00000000 00000000 00000000 00000000
00000000 8fc2bbb4 00000001 0000001d 0000000b 77f038cc
7fe80648 ffffffff ffffffff 00000000
00000001 0016e000 00000000 ...
[ 7.960000] Call Trace:
[ 7.960000] [<801041ec>] thread_saved_pc+0x2c/0x38
[ 7.960000] [<80104248>] get_wchan+0x48/0xac
The disassembly of thread_saved_pc points to the following:
000006d0 <thread_saved_pc>:
6d0: 8c820208 lw v0,520(a0)
6d4: 3c030000 lui v1,0x0
6d8: 24630000 addiu v1,v1,0
6dc: 10430008 beq v0,v1,700 <thread_saved_pc+0x30>
6e0: 00000000 nop
6e4: 3c020000 lui v0,0x0
6e8: 8c43000c lw v1,12(v0)
6ec: 04620004 bltzl v1,700 <thread_saved_pc+0x30>
6f0: 00001021 move v0,zero
6f4: 8c840200 lw a0,512(a0)
6f8: 00031080 sll v0,v1,0x2
6fc: 7c44100a lwx v0,a0(v0) <------------
700: 03e00008 jr ra
704: 00000000 nop
If we specifically disable -mdsp/-mdspr2 for arch/mips/kernel/process.o,
we get the following (non-crashing) assembly:
00000708 <thread_saved_pc>:
708: 8c820208 lw v0,520(a0)
70c: 3c030000 lui v1,0x0
710: 24630000 addiu v1,v1,0
714: 10430009 beq v0,v1,73c <thread_saved_pc+0x34>
718: 00000000 nop
71c: 3c020000 lui v0,0x0
720: 8c42000c lw v0,12(v0)
724: 04420005 bltzl v0,73c <thread_saved_pc+0x34>
728: 00001021 move v0,zero
72c: 8c830200 lw v1,512(a0)
730: 00021080 sll v0,v0,0x2
734: 00431021 addu v0,v0,v1
738: 8c420000 lw v0,0(v0)
73c: 03e00008 jr ra
740: 00000000 nop
The specific line that leads a different assembly being produced is:
unsigned long thread_saved_pc(struct task_struct *tsk)
...
return ((unsigned long *)t->reg29)[schedule_mfi.pc_offset]; <---
The problem here is that the compiler was given the right to use DSP
instructions with the -mdsp / -mdspr2 command-line switches and
performed some optimization for us and used DSP ASE instructions where
we are not checking that the running CPU actually supports DSP ASE.
This patch fixes the issue by partially reverting commit 32a7ede for
arch/mips/kernel/Makefile in order to remove the -mdsp / -mdspr2
compiler command-line switches such that we are now guaranteed that the
compiler will not optimize using DSP ASE reserved instructions. We also
need to fixup the rddsp/wrdsp and m{t,h}{hi,lo}{0,1,2,3} macros in
arch/mips/include/asm/mipsregs.h to tell the assembler that we are going
to explicitely use DSP ASE reserved instructions. The comment in
arch/mips/kernel/Makefile is also updated to reflect that.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: blogic@openwrt.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
There is a missing " " inside /proc/cpuinfo.
The bad commit was:
commit a96102be70
Author: Steven J. Hill <sjhill@mips.com>
Date: Fri Dec 7 04:31:36 2012 +0000
MIPS: Add printing of ISA version in cpuinfo.
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4988/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
In commit 887cbce0ad ("arch Kconfig: centralise ARCH_NO_VIRT_TO_BUS")
I introduced the config sybmol HAVE_VIRT_TO_BUS and selected that where
needed. I am not sure what I was thinking. Instead, just directly
select VIRT_TO_BUS where it is needed.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
All synthesizable CPU cores that could be loaded into a SEAD3's FPGA are
MIPS32 or MIPS64 CPUs that have ll/sc.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Commit f7ade3c168 ("MIPS: Get rid of
CONFIG_CPU_HAS_LLSC") did what it promised to do. But since then that
macro and its Kconfig symbol popped up again. Get rid of those again.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4978/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The MIPS implementation of transparent huge-pages (THP) is 64-bit only,
and of course also requires that the CPU supports huge-pages.
Currently it's entirely possible to enable THP in other configurations,
which then fail to build due to pfn_pmd() not being defined.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: linux-mips@linux-mips.org
Acked-by: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/4972/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
commit 92d11594f6 (MIPS: Remove irqflags.h dependency from bitops.h)
factored some of the bitops code out into a separate file
(arch/mips/lib/bitops.c). Unfortunately the logic converting a bit
mask into a boolean result was lost in some of the functions. We had:
int res;
unsigned long shifted_result_bit;
.
.
.
res = shifted_result_bit;
return res;
Which truncates off the high 32 bits (thus yielding an incorrect
value) on 64-bit systems.
The manifestation of this is that a non-SMP 64-bit kernel will not
boot as the bitmap operations in bootmem.c are all screwed up.
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: Jim Quinlan <jim2101024@gmail.com>
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4965/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The csum_partial implementation contain optimalizations for the MIPS R2
instruction set. This optimization is never enabled however because the
if directive uses the CPU_MIPSR2 constant which is not defined anywhere.
Use the CONFIG_CPU_MIPSR2 constant instead.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4971/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Pull watchdog updates from Wim Van Sebroeck:
"This contains:
- fixes and improvements
- devicetree bindings
- conversion to watchdog generic framework of the following drivers:
- booke_wdt
- bcm47xx_wdt.c
- at91sam9_wdt
- Removal of old STMP3xxx driver
- Addition of following new drivers:
- new driver for STMP3xxx and i.MX23/28
- Retu watchdog driver"
* git://www.linux-watchdog.org/linux-watchdog: (30 commits)
watchdog: sp805_wdt depends on ARM
watchdog: davinci_wdt: update to devm_* API
watchdog: davinci_wdt: use devm managed clk get
watchdog: at91rm9200: add DT support
watchdog: add timeout-sec property binding
watchdog: at91sam9_wdt: Convert to use the watchdog framework
watchdog: omap_wdt: Add option nowayout
watchdog: core: dt: add support for the timeout-sec dt property
watchdog: bcm47xx_wdt.c: add hard timer
watchdog: bcm47xx_wdt.c: rename wdt_time to timeout
watchdog: bcm47xx_wdt.c: rename ops methods
watchdog: bcm47xx_wdt.c: use platform device
watchdog: bcm47xx_wdt.c: convert to watchdog core api
watchdog: Convert BookE watchdog driver to watchdog infrastructure
watchdog: s3c2410_wdt: Use devm_* functions
watchdog: remove old STMP3xxx driver
watchdog: add new driver for STMP3xxx and i.MX23/28
rtc: stmp3xxx: add wdt-accessor function
watchdog: introduce retu_wdt driver
watchdog: intel_scu_watchdog: fix Kconfig dependency
...
Pull signal/compat fixes from Al Viro:
"Fixes for several regressions introduced in the last signal.git pile,
along with fixing bugs in truncate and ftruncate compat (on just about
anything biarch at least one of those two had been done wrong)."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
compat: restore timerfd settime and gettime compat syscalls
[regression] braino in "sparc: convert to ksignal"
fix compat truncate/ftruncate
switch lseek to COMPAT_SYSCALL_DEFINE
lseek() and truncate() on sparc really need sign extension
Pull MIPS updates from Ralf Baechle:
o Add basic support for the Mediatek/Ralink Wireless SoC family.
o The Qualcomm Atheros platform is extended by support for the new
QCA955X SoC series as well as a bunch of patches that get the code
ready for OF support.
o Lantiq and BCM47XX platform have a few improvements and bug fixes.
o MIPS has sent a few patches that get the kernel ready for the
upcoming microMIPS support.
o The rest of the series is made up of small bug fixes and cleanups
that relate to various parts of the MIPS code. The biggy in there is
a whitespace cleanup. After I was sent another set of whitespace
cleanup patches I decided it was the time to clean the whitespace
"issues" for once and and that touches many files below arch/mips/.
Fix up silly conflicts, mostly due to whitespace cleanups.
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (105 commits)
MIPS: Quit exporting kernel internel break codes to uapi/asm/break.h
MIPS: remove broken conditional inside vpe loader code
MIPS: SMTC: fix implicit declaration of set_vi_handler
MIPS: early_printk: drop __init annotations
MIPS: Probe for and report hardware virtualization support.
MIPS: ath79: add support for the Qualcomm Atheros AP136-010 board
MIPS: ath79: add USB controller registration code for the QCA955X SoCs
MIPS: ath79: add PCI controller registration code for the QCA955X SoCs
MIPS: ath79: add WMAC registration code for the QCA955X SoCs
MIPS: ath79: register UART for the QCA955X SoCs
MIPS: ath79: add QCA955X specific glue to ath79_device_reset_{set, clear}
MIPS: ath79: add GPIO setup code for the QCA955X SoCs
MIPS: ath79: add IRQ handling code for the QCA955X SoCs
MIPS: ath79: add clock setup code for the QCA955X SoCs
MIPS: ath79: add SoC detection code for the QCA955X SoCs
MIPS: ath79: add early printk support for the QCA955X SoCs
MIPS: ath79: fix WMAC IRQ resource assignment
mips: reserve elfcorehdr
mips: Make sure kernel memory is in iomem
MIPS: ath79: use dynamically allocated USB platform devices
...
The ath79_wdt driver uses a fixed memory address
currently. Although this is working with each
currently supported SoCs, but this may change
in the future. Additionally, the driver includes
platform specific header files in order to be
able to get the memory base of the watchdog
device.
The patch adds a memory resource to the platform
device, and converts the driver to get the base
address of the watchdog device from that.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Remove the static watchdog device variable and use
the 'platform_device_register_simple' helper to
allocate and register the device in one step.
This allows us to save a few bytes in the kernel image.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
I'm not sure why, but the hlist for each entry iterators were conceived
list_for_each_entry(pos, head, member)
The hlist ones were greedy and wanted an extra parameter:
hlist_for_each_entry(tpos, pos, head, member)
Why did they need an extra pos parameter? I'm not quite sure. Not only
they don't really need it, it also prevents the iterator from looking
exactly like the list iterator, which is unfortunate.
Besides the semantic patch, there was some manual work required:
- Fix up the actual hlist iterators in linux/list.h
- Fix up the declaration of other iterators based on the hlist ones.
- A very small amount of places were using the 'node' parameter, this
was modified to use 'obj->member' instead.
- Coccinelle didn't handle the hlist_for_each_entry_safe iterator
properly, so those had to be fixed up manually.
The semantic patch which is mostly the work of Peter Senna Tschudin is here:
@@
iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host;
type T;
expression a,c,d,e;
identifier b;
statement S;
@@
-T b;
<+... when != b
(
hlist_for_each_entry(a,
- b,
c, d) S
|
hlist_for_each_entry_continue(a,
- b,
c) S
|
hlist_for_each_entry_from(a,
- b,
c) S
|
hlist_for_each_entry_rcu(a,
- b,
c, d) S
|
hlist_for_each_entry_rcu_bh(a,
- b,
c, d) S
|
hlist_for_each_entry_continue_rcu_bh(a,
- b,
c) S
|
for_each_busy_worker(a, c,
- b,
d) S
|
ax25_uid_for_each(a,
- b,
c) S
|
ax25_for_each(a,
- b,
c) S
|
inet_bind_bucket_for_each(a,
- b,
c) S
|
sctp_for_each_hentry(a,
- b,
c) S
|
sk_for_each(a,
- b,
c) S
|
sk_for_each_rcu(a,
- b,
c) S
|
sk_for_each_from
-(a, b)
+(a)
S
+ sk_for_each_from(a) S
|
sk_for_each_safe(a,
- b,
c, d) S
|
sk_for_each_bound(a,
- b,
c) S
|
hlist_for_each_entry_safe(a,
- b,
c, d, e) S
|
hlist_for_each_entry_continue_rcu(a,
- b,
c) S
|
nr_neigh_for_each(a,
- b,
c) S
|
nr_neigh_for_each_safe(a,
- b,
c, d) S
|
nr_node_for_each(a,
- b,
c) S
|
nr_node_for_each_safe(a,
- b,
c, d) S
|
- for_each_gfn_sp(a, c, d, b) S
+ for_each_gfn_sp(a, c, d) S
|
- for_each_gfn_indirect_valid_sp(a, c, d, b) S
+ for_each_gfn_indirect_valid_sp(a, c, d) S
|
for_each_host(a,
- b,
c) S
|
for_each_host_safe(a,
- b,
c, d) S
|
for_each_mesh_entry(a,
- b,
c, d) S
)
...+>
[akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c]
[akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c]
[akpm@linux-foundation.org: checkpatch fixes]
[akpm@linux-foundation.org: fix warnings]
[akpm@linux-foudnation.org: redo intrusive kvm changes]
Tested-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change it to CONFIG_HAVE_VIRT_TO_BUS and set it in all architecures
that already provide virt_to_bus().
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: H Hartley Sweeten <hartleys@visionengravers.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull vfs pile (part one) from Al Viro:
"Assorted stuff - cleaning namei.c up a bit, fixing ->d_name/->d_parent
locking violations, etc.
The most visible changes here are death of FS_REVAL_DOT (replaced with
"has ->d_weak_revalidate()") and a new helper getting from struct file
to inode. Some bits of preparation to xattr method interface changes.
Misc patches by various people sent this cycle *and* ocfs2 fixes from
several cycles ago that should've been upstream right then.
PS: the next vfs pile will be xattr stuff."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits)
saner proc_get_inode() calling conventions
proc: avoid extra pde_put() in proc_fill_super()
fs: change return values from -EACCES to -EPERM
fs/exec.c: make bprm_mm_init() static
ocfs2/dlm: use GFP_ATOMIC inside a spin_lock
ocfs2: fix possible use-after-free with AIO
ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path
get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero
target: writev() on single-element vector is pointless
export kernel_write(), convert open-coded instances
fs: encode_fh: return FILEID_INVALID if invalid fid_type
kill f_vfsmnt
vfs: kill FS_REVAL_DOT by adding a d_weak_revalidate dentry op
nfsd: handle vfs_getattr errors in acl protocol
switch vfs_getattr() to struct path
default SET_PERSONALITY() in linux/elf.h
ceph: prepopulate inodes only when request is aborted
d_hash_and_lookup(): export, switch open-coded instances
9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate()
9p: split dropping the acls from v9fs_set_create_acl()
...
lockdep, but it's a mechanical change.
Cheers,
Rusty.
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Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module update from Rusty Russell:
"The sweeping change is to make add_taint() explicitly indicate whether
to disable lockdep, but it's a mechanical change."
* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
MODSIGN: Add option to not sign modules during modules_install
MODSIGN: Add -s <signature> option to sign-file
MODSIGN: Specify the hash algorithm on sign-file command line
MODSIGN: Simplify Makefile with a Kconfig helper
module: clean up load_module a little more.
modpost: Ignore ARC specific non-alloc sections
module: constify within_module_*
taint: add explicit flag to show whether lock dep is still OK.
module: printk message when module signature fail taints kernel.
Pull signal handling cleanups from Al Viro:
"This is the first pile; another one will come a bit later and will
contain SYSCALL_DEFINE-related patches.
- a bunch of signal-related syscalls (both native and compat)
unified.
- a bunch of compat syscalls switched to COMPAT_SYSCALL_DEFINE
(fixing several potential problems with missing argument
validation, while we are at it)
- a lot of now-pointless wrappers killed
- a couple of architectures (cris and hexagon) forgot to save
altstack settings into sigframe, even though they used the
(uninitialized) values in sigreturn; fixed.
- microblaze fixes for delivery of multiple signals arriving at once
- saner set of helpers for signal delivery introduced, several
architectures switched to using those."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (143 commits)
x86: convert to ksignal
sparc: convert to ksignal
arm: switch to struct ksignal * passing
alpha: pass k_sigaction and siginfo_t using ksignal pointer
burying unused conditionals
make do_sigaltstack() static
arm64: switch to generic old sigaction() (compat-only)
arm64: switch to generic compat rt_sigaction()
arm64: switch compat to generic old sigsuspend
arm64: switch to generic compat rt_sigqueueinfo()
arm64: switch to generic compat rt_sigpending()
arm64: switch to generic compat rt_sigprocmask()
arm64: switch to generic sigaltstack
sparc: switch to generic old sigsuspend
sparc: COMPAT_SYSCALL_DEFINE does all sign-extension as well as SYSCALL_DEFINE
sparc: kill sign-extending wrappers for native syscalls
kill sparc32_open()
sparc: switch to use of generic old sigaction
sparc: switch sys_compat_rt_sigaction() to COMPAT_SYSCALL_DEFINE
mips: switch to generic sys_fork() and sys_clone()
...
Conflicts:
include/linux/ssb/ssb_driver_gige.h
Also resolves a logical merge conflict in drivers/net/ethernet/broadcom/-
bgmac.c due to change of an API.
Pull x86 mm changes from Peter Anvin:
"This is a huge set of several partly interrelated (and concurrently
developed) changes, which is why the branch history is messier than
one would like.
The *really* big items are two humonguous patchsets mostly developed
by Yinghai Lu at my request, which completely revamps the way we
create initial page tables. In particular, rather than estimating how
much memory we will need for page tables and then build them into that
memory -- a calculation that has shown to be incredibly fragile -- we
now build them (on 64 bits) with the aid of a "pseudo-linear mode" --
a #PF handler which creates temporary page tables on demand.
This has several advantages:
1. It makes it much easier to support things that need access to data
very early (a followon patchset uses this to load microcode way
early in the kernel startup).
2. It allows the kernel and all the kernel data objects to be invoked
from above the 4 GB limit. This allows kdump to work on very large
systems.
3. It greatly reduces the difference between Xen and native (Xen's
equivalent of the #PF handler are the temporary page tables created
by the domain builder), eliminating a bunch of fragile hooks.
The patch series also gets us a bit closer to W^X.
Additional work in this pull is the 64-bit get_user() work which you
were also involved with, and a bunch of cleanups/speedups to
__phys_addr()/__pa()."
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (105 commits)
x86, mm: Move reserving low memory later in initialization
x86, doc: Clarify the use of asm("%edx") in uaccess.h
x86, mm: Redesign get_user with a __builtin_choose_expr hack
x86: Be consistent with data size in getuser.S
x86, mm: Use a bitfield to mask nuisance get_user() warnings
x86/kvm: Fix compile warning in kvm_register_steal_time()
x86-32: Add support for 64bit get_user()
x86-32, mm: Remove reference to alloc_remap()
x86-32, mm: Remove reference to resume_map_numa_kva()
x86-32, mm: Rip out x86_32 NUMA remapping code
x86/numa: Use __pa_nodebug() instead
x86: Don't panic if can not alloc buffer for swiotlb
mm: Add alloc_bootmem_low_pages_nopanic()
x86, 64bit, mm: hibernate use generic mapping_init
x86, 64bit, mm: Mark data/bss/brk to nx
x86: Merge early kernel reserve for 32bit and 64bit
x86: Add Crash kernel low reservation
x86, kdump: Remove crashkernel range find limit for 64bit
memblock: Add memblock_mem_size()
x86, boot: Not need to check setup_header version for setup_data
...
Pull trivial tree from Jiri Kosina:
"Assorted tiny fixes queued in trivial tree"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (22 commits)
DocBook: update EXPORT_SYMBOL entry to point at export.h
Documentation: update top level 00-INDEX file with new additions
ARM: at91/ide: remove unsused at91-ide Kconfig entry
percpu_counter.h: comment code for better readability
x86, efi: fix comment typo in head_32.S
IB: cxgb3: delay freeing mem untill entirely done with it
net: mvneta: remove unneeded version.h include
time: x86: report_lost_ticks doesn't exist any more
pcmcia: avoid static analysis complaint about use-after-free
fs/jfs: Fix typo in comment : 'how may' -> 'how many'
of: add missing documentation for of_platform_populate()
btrfs: remove unnecessary cur_trans set before goto loop in join_transaction
sound: soc: Fix typo in sound/codecs
treewide: Fix typo in various drivers
btrfs: fix comment typos
Update ibmvscsi module name in Kconfig.
powerpc: fix typo (utilties -> utilities)
of: fix spelling mistake in comment
h8300: Fix home page URL in h8300/README
xtensa: Fix home page URL in Kconfig
...
Here's the big tty/serial driver patches for 3.9-rc1.
More tty port rework and fixes from Jiri here, as well as lots of
individual serial driver updates and fixes.
All of these have been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial patches from Greg Kroah-Hartman:
"Here's the big tty/serial driver patches for 3.9-rc1.
More tty port rework and fixes from Jiri here, as well as lots of
individual serial driver updates and fixes.
All of these have been in the linux-next tree for a while."
* tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (140 commits)
tty: mxser: improve error handling in mxser_probe() and mxser_module_init()
serial: imx: fix uninitialized variable warning
serial: tegra: assume CONFIG_OF
TTY: do not update atime/mtime on read/write
lguest: select CONFIG_TTY to build properly.
ARM defconfigs: add missing inclusions of linux/platform_device.h
fb/exynos: include platform_device.h
ARM: sa1100/assabet: include platform_device.h directly
serial: imx: Fix recursive locking bug
pps: Fix build breakage from decoupling pps from tty
tty: Remove ancient hardpps()
pps: Additional cleanups in uart_handle_dcd_change
pps: Move timestamp read into PPS code proper
pps: Don't crash the machine when exiting will do
pps: Fix a use-after free bug when unregistering a source.
pps: Use pps_lookup_dev to reduce ldisc coupling
pps: Add pps_lookup_dev() function
tty: serial: uartlite: Support uartlite on big and little endian systems
tty: serial: uartlite: Fix sparse and checkpatch warnings
serial/arc-uart: Miscll DT related updates (Grant's review comments)
...
Fix up trivial conflicts, mostly just due to the TTY config option
clashing with the EXPERIMENTAL removal.
Here is the big driver core merge for 3.9-rc1
There are two major series here, both of which touch lots of drivers all
over the kernel, and will cause you some merge conflicts:
- add a new function called devm_ioremap_resource() to properly be
able to check return values.
- remove CONFIG_EXPERIMENTAL
If you need me to provide a merged tree to handle these resolutions,
please let me know.
Other than those patches, there's not much here, some minor fixes and
updates.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core patches from Greg Kroah-Hartman:
"Here is the big driver core merge for 3.9-rc1
There are two major series here, both of which touch lots of drivers
all over the kernel, and will cause you some merge conflicts:
- add a new function called devm_ioremap_resource() to properly be
able to check return values.
- remove CONFIG_EXPERIMENTAL
Other than those patches, there's not much here, some minor fixes and
updates"
Fix up trivial conflicts
* tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)
base: memory: fix soft/hard_offline_page permissions
drivercore: Fix ordering between deferred_probe and exiting initcalls
backlight: fix class_find_device() arguments
TTY: mark tty_get_device call with the proper const values
driver-core: constify data for class_find_device()
firmware: Ignore abort check when no user-helper is used
firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER
firmware: Make user-mode helper optional
firmware: Refactoring for splitting user-mode helper code
Driver core: treat unregistered bus_types as having no devices
watchdog: Convert to devm_ioremap_resource()
thermal: Convert to devm_ioremap_resource()
spi: Convert to devm_ioremap_resource()
power: Convert to devm_ioremap_resource()
mtd: Convert to devm_ioremap_resource()
mmc: Convert to devm_ioremap_resource()
mfd: Convert to devm_ioremap_resource()
media: Convert to devm_ioremap_resource()
iommu: Convert to devm_ioremap_resource()
drm: Convert to devm_ioremap_resource()
...
Pull networking update from David Miller:
1) Checkpoint/restarted TCP sockets now can properly propagate the TCP
timestamp offset. From Andrey Vagin.
2) VMWARE VM VSOCK layer, from Andy King.
3) Much improved support for virtual functions and SR-IOV in bnx2x,
from Ariel ELior.
4) All protocols on ipv4 and ipv6 are now network namespace aware, and
all the compatability checks for initial-namespace-only protocols is
removed. Thanks to Tom Parkin for helping deal with the last major
holdout, L2TP.
5) IPV6 support in netpoll and network namespace support in pktgen,
from Cong Wang.
6) Multiple Registration Protocol (MRP) and Multiple VLAN Registration
Protocol (MVRP) support, from David Ward.
7) Compute packet lengths more accurately in the packet scheduler, from
Eric Dumazet.
8) Use per-task page fragment allocator in skb_append_datato_frags(),
also from Eric Dumazet.
9) Add support for connection tracking labels in netfilter, from
Florian Westphal.
10) Fix default multicast group joining on ipv6, and add anti-spoofing
checks to 6to4 and 6rd. From Hannes Frederic Sowa.
11) Make ipv4/ipv6 fragmentation memory limits more reasonable in modern
times, rearrange inet frag datastructures for better cacheline
locality, and move more operations outside of locking. From Jesper
Dangaard Brouer.
12) Instead of strict master <--> slave relationships, allow arbitrary
scenerios with "upper device lists". From Jiri Pirko.
13) Improve rate limiting accuracy in TBF and act_police, also from Jiri
Pirko.
14) Add a BPF filter netfilter match target, from Willem de Bruijn.
15) Orphan and delete a bunch of pre-historic networking drivers from
Paul Gortmaker.
16) Add TSO support for GRE tunnels, from Pravin B SHelar. Although
this still needs some minor bug fixing before it's %100 correct in
all cases.
17) Handle unresolved IPSEC states like ARP, with a resolution packet
queue. From Steffen Klassert.
18) Remove TCP Appropriate Byte Count support (ABC), from Stephen
Hemminger. This was long overdue.
19) Support SO_REUSEPORT, from Tom Herbert.
20) Allow locking a socket BPF filter, so that it cannot change after a
process drops capabilities.
21) Add VLAN filtering to bridge, from Vlad Yasevich.
22) Bring ipv6 on-par with ipv4 and do not cache neighbour entries in
the ipv6 routes, from YOSHIFUJI Hideaki.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1538 commits)
ipv6: fix race condition regarding dst->expires and dst->from.
net: fix a wrong assignment in skb_split()
ip_gre: remove an extra dst_release()
ppp: set qdisc_tx_busylock to avoid LOCKDEP splat
atl1c: restore buffer state
net: fix a build failure when !CONFIG_PROC_FS
net: ipv4: fix waring -Wunused-variable
net: proc: fix build failed when procfs is not configured
Revert "xen: netback: remove redundant xenvif_put"
net: move procfs code to net/core/net-procfs.c
qmi_wwan, cdc-ether: add ADU960S
bonding: set sysfs device_type to 'bond'
bonding: fix bond_release_all inconsistencies
b44: use netdev_alloc_skb_ip_align()
xen: netback: remove redundant xenvif_put
net: fec: Do a sanity check on the gpio number
ip_gre: propogate target device GSO capability to the tunnel device
ip_gre: allow CSUM capable devices to handle packets
bonding: Fix initialize after use for 3ad machine state spinlock
bonding: Fix race condition between bond_enslave() and bond_3ad_update_lacp_rate()
...
The internal codes are not part of the kernel's ABI.
Signed-off-by: David Daney <david.daney@cavium.com>
Patchwork: http://patchwork.linux-mips.org/patch/4932/
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Pull irq core changes from Ingo Molnar:
"The biggest changes are the IRQ-work and printk changes from Frederic
Weisbecker, which prepare the code for 'full dynticks' (the ability to
stop or slow down the periodic tick arbitrarily, not just in idle time
as today):
- Don't stop tick with irq works pending. This fix is generally
useful and concerns archs that can't raise self IPIs.
- Flush irq works before CPU offlining.
- Introduce "lazy" irq works that can wait for the next tick to be
executed, unless it's stopped.
- Implement klogd wake up using irq work. This removes the ad-hoc
printk_tick()/printk_needs_cpu() hooks and make it working even in
dynticks mode.
- Cleanups and fixes."
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Export enable/disable_percpu_irq()
arch Kconfig: Remove references to IRQ_PER_CPU
irq_work: Remove return value from the irq_work_queue() function
genirq: Avoid deadlock in spurious handling
printk: Wake up klogd using irq_work
irq_work: Make self-IPIs optable
irq_work: Warn if there's still work on cpu_down
irq_work: Flush work on CPU_DYING
irq_work: Don't stop the tick with pending works
nohz: Add API to check tick state
irq_work: Remove CONFIG_HAVE_IRQ_WORK
irq_work: Fix racy check on work pending flag
irq_work: Fix racy IRQ_WORK_BUSY flag setting
The commit [1] breaks builds and results in the following error
arch/mips/kernel/vpe.c: In function 'vpe_run':
arch/mips/kernel/vpe.c:708:16: error: invalid type argument of '->' (have 'struct list_head')
Taking a closer look at the conditional we notice that list_first_entry wont
ever return NULL. The easiest fix is to just drop the dead code.
[1]
commit 3d2d032476
MIPS: vpe.c: Fix null pointer dereference in print arguments.
Signed-off-by: John Crispin <blogic@openwrt.org>
This patch fixes the following implicit declaration while building with
MIPS SMTC support enabled:
arch/mips/kernel/smtc.c: In function 'setup_cross_vpe_interrupts':
arch/mips/kernel/smtc.c:1205:2: error: implicit declaration of function
'set_vi_handler' [-Werror=implicit-function-declaration]
cc1: all warnings being treated as errors
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4931/
Signed-off-by: John Crispin <blogic@openwrt.org>
We cannot use __init for earlyprintk code or data, since the kernel
parameter "keep_bootcon" allows leaving the boot console enabled.
Currently MIPS will crash/hang/die if you use keep_bootcon. The patch
fixes it at least on Lemote FuLoong mini-PC. Changes for other boards
were done based on what I could find with grep...
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Patchwork: http://patchwork.linux-mips.org/patch/4935/
Signed-off-by: John Crispin <blogic@openwrt.org>
The presence of the MIPS Virtualization Application-Specific Extension
is indicated by CP0_Config3[23]. Probe for this and report it in
/proc/cpuinfo.
Signed-off-by: David Daney <david.daney@cavium.com>
Patchwork: http://patchwork.linux-mips.org/patch/4904/
Signed-off-by: John Crispin <blogic@openwrt.org>
Also enable the board in the default configuration.
Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4953/
Signed-off-by: John Crispin <blogic@openwrt.org>
Register platfom devices for the built-in USB
controllers of the SoCs.
Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4952/
Signed-off-by: John Crispin <blogic@openwrt.org>
Add SoC specific PCI IRQ map, and register platform
devices for the two built-in PCIe RCs.
Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4951/
Signed-off-by: John Crispin <blogic@openwrt.org>
The SoC has a built-in wireless MAC. Register a platform
device for that to make it usable with the ath9k driver.
Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4956/
Signed-off-by: John Crispin <blogic@openwrt.org>
Similarly to the preceding SoCs, the QCA955X SoCs
also have a built-in NS16650 compatible UART.
Register the platform device for that to make
it usable.
Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4949/
Signed-off-by: John Crispin <blogic@openwrt.org>
The ath79_device_reset_* are causing BUG when
those are used on the QCA955x SoCs. The patch
adds the required code to avoid that.
Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4948/
Signed-off-by: John Crispin <blogic@openwrt.org>
The existing code can handle the GPIO controller of
the QCA955x SoCs. Add a minimal glue code to make it
working.
Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4947/
Signed-off-by: John Crispin <blogic@openwrt.org>
The IRQ routing in the QCA955x SoCs is slightly
different from the routing implemented in the
already supported SoCs.
Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com>
Cc: Giori, Kathy <kgiori@qca.qualcomm.com>
Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/4955/
Signed-off-by: John Crispin <blogic@openwrt.org>
