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ftrace_stop() is going away as it disables parts of function tracing
that affects users that should not be affected. But ftrace_graph_stop()
is built on ftrace_stop(). Here's another example of killing all of
function tracing because something went wrong with function graph
tracing.
Instead of disabling all users of function tracing on function graph
error, disable only function graph tracing. To do this, the arch code
must call ftrace_graph_is_dead() before it implements function graph.
Link: http://lkml.kernel.org/r/53C8D874.9090601@monstr.eu
Tested-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
- Clean PCI and DMA handling
- Use generic device.h
- Some cleanups
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Merge tag 'microblaze-3.16-rc1' of git://git.monstr.eu/linux-2.6-microblaze into next
Pull Microblaze updates from Michal Simek:
- cleanup PCI and DMA handling
- use generic device.h
- some cleanups
* tag 'microblaze-3.16-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Fix typo in head.S s/substract/subtract/
microblaze: remove check for CONFIG_XILINX_CONSOLE
microblaze: Use generic device.h
microblaze: Do not setup empty unmap_sg function
microblaze: Remove device_to_mask
microblaze: Clean device dma_ops structure
microblaze: Cleanup PCI_DRAM_OFFSET handling
microblaze: Do not setup pci_dma_ops
microblaze: Return default dma operations
microblaze: Enable SERIAL_OF_PLATFORM
Signed-off-by: Antonio Ospite <ao2@ao2.it>
Cc: Michal Simek <monstr@monstr.eu>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
There's been a check for CONFIG_XILINX_CONSOLE since v2.6.30. But the
Kconfig symbol XILINX_CONSOLE was never added. Remove this check.
And, since DUMMY_CONSOLE depends on VT, we can now drop the check for
CONFIG_VT.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
PCI_DRAM_OFFSET/pci_dram_offset is 0 all the time and there
is no difference for PCI and !PCI cases.
Also remove the whole code which setup archdata.dma_data
which is completely unused.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Return Microblaze default dma operations
and remove bus notifier which setups the same dma operations
by default when device is added to the system.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Both powerpc and microblaze have the same FDT blob in debugfs feature.
Move this to common location and remove the powerpc and microblaze
implementations. This feature could become more useful when FDT
overlay support is added.
This changes the path of the blob from "$arch/flat-device-tree" to
"device-tree/flat-device-tree".
Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Tested-by: Grant Likely <grant.likely@linaro.org>
Tested-by: Stephen Chivers <schivers@csc.com>
Make of_get_flat_dt_prop arguments compatible with libfdt fdt_getprop
call in preparation to convert FDT code to use libfdt. Make the return
value const and the property length ptr type an int.
Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Grant Likely <grant.likely@linaro.org>
Tested-by: Stephen Chivers <schivers@csc.com>
- Use asm-generic/io.h and fix intc/timer code
- Clean platform handling
- Enable some syscalls
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Merge tag 'microblaze-3.15-rc1' of git://git.monstr.eu/linux-2.6-microblaze
Pull Microblaze updates from Michal Simek:
- use asm-generic/io.h and fix intc/timer code
- clean platform handling
- enable some syscalls
* tag 'microblaze-3.15-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Use asm-generic/io.h
microblaze: Remove platform folder
microblaze: Remove generic platform
microblaze: Sort Kconfig options
microblaze: Move DTS file to common location at boot/dts folder
microblaze: Fix compilation failure because of release_thread
microblaze: Fix sparse warning because of missing cpu.h header
microblaze: Make timer driver endian aware
microblaze: Make intc driver endian aware
microblaze: Wire-up new system calls sched_setattr/getattr
microblaze: Wire-up preadv/pwritev in syscall table
microblaze: Enable pselect6 syscall
microblaze: Drop architecture-specific declaration of early_printk
microblaze: Rename global function heartbeat()
Using generic io.h will narrow down code duplication
in architecture io.h.
- define PCI_IOBASE
- remove non existing pci_io_base extern
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Warning:
arch/microblaze/kernel/process.c:164:6: warning: symbol 'arch_cpu_idle'
was not declared. Should it be static?
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
microblaze:allmodconfig complains for some configurations that 'heartbeat'
is redefined as different kind of symbol. This is seen in test compiles
of watchdog drivers, which often use 'heartbeat' as ststic variable.
Since 'heartbeat' is an unfortunate name for a global function,
rename it to microblaze_heartbeat. Also rename the setup function
to microblaze_setup_heartbeat.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
As the data parameter is not really used by any ftrace_dyn_arch_init,
remove that from ftrace_dyn_arch_init. This also removes the addr
local variable from ftrace_init which is now unused.
Note the documentation was imprecise as it did not suggest to set
(*data) to 0.
Link: http://lkml.kernel.org/r/1393268401-24379-4-git-send-email-jslaby@suse.cz
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
No architecture uses the "data" parameter in ftrace_dyn_arch_init() in any
way, it just sets the value to 0. And this is used as a return value
in the caller -- ftrace_init, which just checks the retval against
zero.
Note there is also "return 0" in every ftrace_dyn_arch_init. So it is
enough to check the retval and remove all the indirect sets of data on
all archs.
Link: http://lkml.kernel.org/r/1393268401-24379-3-git-send-email-jslaby@suse.cz
Cc: linux-arch@vger.kernel.org
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Correct a typo causing the stack protector to be left enabled.
0xFFFFFFF -> 0xFFFFFFFF
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
The error was introduced by the patch
"microblaze: Fix coding style issues"
(sha1: 6bd55f0bba).
Error message:
arch/microblaze/kernel/setup.c: In function 'machine_early_init':
arch/microblaze/kernel/setup.c:177:3: error: 'pr_cont'
undeclared (first use in this function)
arch/microblaze/kernel/setup.c:177:3: note: each undeclared
identifier is reported only once for each function it appears in
arch/microblaze/kernel/setup.c:177:10: error: expected ';'
before string constant
arch/microblaze/kernel/setup.c:177:33: error: expected statement
before ')' token
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This bug was introduced by:
"microblaze: Do not used hardcoded value in exception handler"
(sha1: 9f78d3b5ab)
System without barrel shifter are pretty rare that's why
this bug has been fixed so late.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Microblaze without MMU can use stack protection in bootloader
and kernel should clear this setting ASAP.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Remove sched_clock from the driver and use sched_clock_register
function.
Inspired-by:
"arch_timer: Move to generic sched_clock framework"
(sha1: 65cd4f6c99)
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Do not keep NOTES section align in proper location.
'readelf' shows that 'NOTE' is placed in wrong location
which is out of virtual and physical load addresses.
Section Headers:
[Nr] Name Type Addr Off Size ES Flg Lk Inf Al
[ 1] .note.gnu.build-i NOTE 00000000 001000 000024 00 A 0 0 4
[ 2] .text PROGBITS c0000000 002000 284570 00 AX 0 0 16
[ 3] __fdt_blob PROGBITS c0284570 286570 008000 00 A 0 0 1
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
LOAD 0x001000 0x00000000 0x00000000 0x00024 0x00024 R 0x1000
LOAD 0x002000 0xc0000000 0x08000000 0x315428 0x316000 RWE 0x1000
This patch move 'NOTE' section to the correct location.
Checked with:
"ARM: 6740/1: Place correctly notes section in the linker script"
(sha1: dc810efb0c)
and
"[S390] incorrect note program header"
(sha1: 7a2512b744)
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
_fdt_start is an array, i.e. a pointer.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: microblaze-uclinux@itee.uq.edu.au
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
usual for this cycle with lots of clean-up.
- Cross arch clean-up and consolidation of early DT scanning code.
- Clean-up and removal of arch prom.h headers. Makes arch specific
prom.h optional on all but Sparc.
- Addition of interrupts-extended property for devices connected to
multiple interrupt controllers.
- Refactoring of DT interrupt parsing code in preparation for deferred
probe of interrupts.
- ARM cpu and cpu topology bindings documentation.
- Various DT vendor binding documentation updates.
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Merge tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
"DeviceTree updates for 3.13. This is a bit larger pull request than
usual for this cycle with lots of clean-up.
- Cross arch clean-up and consolidation of early DT scanning code.
- Clean-up and removal of arch prom.h headers. Makes arch specific
prom.h optional on all but Sparc.
- Addition of interrupts-extended property for devices connected to
multiple interrupt controllers.
- Refactoring of DT interrupt parsing code in preparation for
deferred probe of interrupts.
- ARM cpu and cpu topology bindings documentation.
- Various DT vendor binding documentation updates"
* tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (82 commits)
powerpc: add missing explicit OF includes for ppc
dt/irq: add empty of_irq_count for !OF_IRQ
dt: disable self-tests for !OF_IRQ
of: irq: Fix interrupt-map entry matching
MIPS: Netlogic: replace early_init_devtree() call
of: Add Panasonic Corporation vendor prefix
of: Add Chunghwa Picture Tubes Ltd. vendor prefix
of: Add AU Optronics Corporation vendor prefix
of/irq: Fix potential buffer overflow
of/irq: Fix bug in interrupt parsing refactor.
of: set dma_mask to point to coherent_dma_mask
of: add vendor prefix for PHYTEC Messtechnik GmbH
DT: sort vendor-prefixes.txt
of: Add vendor prefix for Cadence
of: Add empty for_each_available_child_of_node() macro definition
arm/versatile: Fix versatile irq specifications.
of/irq: create interrupts-extended property
microblaze/pci: Drop PowerPC-ism from irq parsing
of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code.
of/irq: Use irq_of_parse_and_map()
...
Fix mmap2 behaviour which incorrectly works with pgoff
not in 4k units.
Reported-by: Rich Felker <dalias@aerifal.cx>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
The kernel needs to setup the first two tlbs with pad
which is used for early page allocation which is used
by mapin_ram() to allocate tables for lowmem memory
before memory initialisation is done.
Calculate pad directly from lowmem size.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This removes the NO_MMU Kconfig parameter,
which was no longer used anywhere in the source code
and Makefiles.
This also updates a comment refering to this parameter.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
While powerpc is a mess of implicit includes by prom.h, microblaze just
copied this and is easily fixed. Add the necessary explicit includes and
remove unnecessary includes and other parts from prom.h
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: netdev@vger.kernel.org
All arches do essentially the same thing now for
early_init_dt_setup_initrd_arch, so it can now be removed.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Create a weak version of early_init_dt_add_memory_arch which uses
memblock. This will unify all architectures except ones with custom
memory bank structs.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: linux@lists.openrisc.net
Cc: devicetree@vger.kernel.org
Convert microblaze to use new early_init_dt_scan function.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Tested-by: Michal Simek <monstr@monstr.eu>
Cc: microblaze-uclinux@itee.uq.edu.au
Generally minor changes. A bunch of bug fixes, particularly for
initialization and some refactoring. Most notable change if feeding the
entire flattened tree into the random pool at boot. May not be
significant, but shouldn't hurt either.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
Pull device tree core updates from Grant Likely:
"Generally minor changes. A bunch of bug fixes, particularly for
initialization and some refactoring. Most notable change if feeding
the entire flattened tree into the random pool at boot. May not be
significant, but shouldn't hurt either"
Tim Bird questions whether the boot time cost of the random feeding may
be noticeable. And "add_device_randomness()" is definitely not some
speed deamon of a function.
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
of/platform: add error reporting to of_amba_device_create()
irq/of: Fix comment typo for irq_of_parse_and_map
of: Feed entire flattened device tree into the random pool
of/fdt: Clean up casting in unflattening path
of/fdt: Remove duplicate memory clearing on FDT unflattening
gpio: implement gpio-ranges binding document fix
of: call __of_parse_phandle_with_args from of_parse_phandle
of: introduce of_parse_phandle_with_fixed_args
of: move of_parse_phandle()
of: move documentation of of_parse_phandle_with_args
of: Fix missing memory initialization on FDT unflattening
of: consolidate definition of early_init_dt_alloc_memory_arch()
of: Make of_get_phy_mode() return int i.s.o. const int
include: dt-binding: input: create a DT header defining key codes.
of/platform: Staticize of_platform_device_create_pdata()
of: Specify initrd location using 64-bit
dt: Typo fix
OF: make of_property_for_each_{u32|string}() use parameters if OF is not enabled
The main reason that this driver can be used by ARM
and PPC. The part of preparing of move to generic location.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Simplify timer initialization and prepare the driver
for moving to drivers/clocksource folder.
Also remove system-timer property from binding because
the name is too generic.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
