17 Aug, 2015
1 commit
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commit 0cb0985f57783c2f3c6c8ffe7e7665e80c56bd92 upstream.
get_c0_perfcount_int is tested from oprofile code. If oprofile is
compiled as module, get_c0_perfcount_int needs to be exported, otherwise
it cannot be resolved.Fixes: a669efc4a3b4 ("MIPS: Add hook to get C0 performance counter interrupt")
Signed-off-by: Felix Fietkau
Cc: linux-mips@linux-mips.org
Cc: abrestic@chromium.org
Patchwork: https://patchwork.linux-mips.org/patch/10763/
Signed-off-by: Ralf Baechle
Signed-off-by: Greg Kroah-Hartman
02 Apr, 2015
5 commits
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Signed-off-by: Ralf Baechle
-
Signed-off-by: Ralf Baechle
-
So let's remove everythig that only make sense for a kernel module and
build the thing unconditionally.Signed-off-by: Ralf Baechle
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So let's remove everything that only makes sense for kernel modules.
Signed-off-by: Ralf Baechle
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So let's remove everything that only makes sense for kernel modules.
Signed-off-by: Ralf Baechle
01 Apr, 2015
10 commits
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With no I2C driver available, keeping the platform device registration
makes no sense just as keeping the code to instantiage the I2C devices.Signed-off-by: Ralf Baechle
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Signed-off-by: Ralf Baechle
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Signed-off-by: Ralf Baechle
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Signed-off-by: Ralf Baechle
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Signed-off-by: Ralf Baechle
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Signed-off-by: Ralf Baechle
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Signed-off-by: Ralf Baechle
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Signed-off-by: Ralf Baechle
-
Signed-off-by: Ralf Baechle
Cc: Markos Chandras
Cc: linux-mips@linux-mips.org
Cc: Bryan Wu
Cc: Richard Purdie
Cc: linux-leds@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8203/ -
On OCTEON the function is non-trivial and we can potentially even save
some memory.Signed-off-by: Aaro Koskinen
Acked-by: David Daney
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9338/
Signed-off-by: Ralf Baechle
21 Feb, 2015
1 commit
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Commit e9de688dac65 ("irqchip: mips-gic: Support local interrupts")
updated several platforms. This is a copy paste error.Signed-off-by: Niklas Cassel
Reviewed-by: Andrew Bresticker
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9245/
Signed-off-by: Ralf Baechle
15 Dec, 2014
1 commit
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Pull driver core update from Greg KH:
"Here's the set of driver core patches for 3.19-rc1.They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes,
just removing a line in a structure.Other than that, a few minor driver core and debugfs changes. There
are some ath9k patches coming in through this tree that have been
acked by the wireless maintainers as they relied on the debugfs
changes.Everything has been in linux-next for a while"
* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
fs: debugfs: add forward declaration for struct device type
firmware class: Deletion of an unnecessary check before the function call "vunmap"
firmware loader: fix hung task warning dump
devcoredump: provide a one-way disable function
device: Add dev__once variants
ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
ath: use seq_file api for ath9k debugfs files
debugfs: add helper function to create device related seq_file
drivers/base: cacheinfo: remove noisy error boot message
Revert "core: platform: add warning if driver has no owner"
drivers: base: support cpu cache information interface to userspace via sysfs
drivers: base: add cpu_device_create to support per-cpu devices
topology: replace custom attribute macros with standard DEVICE_ATTR*
cpumask: factor out show_cpumap into separate helper function
driver core: Fix unbalanced device reference in drivers_probe
driver core: fix race with userland in device_add()
sysfs/kernfs: make read requests on pre-alloc files use the buffer.
sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
fs: sysfs: return EGBIG on write if offset is larger than file size
...
12 Dec, 2014
1 commit
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Pull MIPS updates from Ralf Baechle:
"This is an unusually large pull request for MIPS - in parts because
lots of patches missed the 3.18 deadline but primarily because some
folks opened the flood gates.- Retire the MIPS-specific phys_t with the generic phys_addr_t.
- Improvments for the backtrace code used by oprofile.
- Better backtraces on SMP systems.
- Cleanups for the Octeon platform code.
- Cleanups and fixes for the Loongson platform code.
- Cleanups and fixes to the firmware library.
- Switch ATH79 platform to use the firmware library.
- Grand overhault to the SEAD3 and Malta interrupt code.
- Move the GIC interrupt code to drivers/irqchip
- Lots of GIC cleanups and updates to the GIC code to use modern IRQ
infrastructures and features of the kernel.
- OF documentation updates for the GIC bindings
- Move GIC clocksource driver to drivers/clocksource
- Merge GIC clocksource driver with clockevent driver.
- Further updates to bring the GIC clocksource driver up to date.
- R3000 TLB code cleanups
- Improvments to the Loongson 3 platform code.
- Convert pr_warning to pr_warn.
- Merge a bunch of small lantiq and ralink fixes that have been
staged/lingering inside the openwrt tree for a while.
- Update archhelp for IP22/IP32
- Fix a number of issues for Loongson 1B.
- New clocksource and clockevent driver for Loongson 1B.
- Further work on clk handling for Loongson 1B.
- Platform work for Broadcom BMIPS.
- Error handling cleanups for TurboChannel.
- Fixes and optimization to the microMIPS support.
- Option to disable the FTLB.
- Dump more relevant information on machine check exception
- Change binfmt to allow arch to examine PT_*PROC headers
- Support for new style FPU register model in O32
- VDSO randomization.
- BCM47xx cleanups
- BCM47xx reimplement the way the kernel accesses NVRAM information.
- Random cleanups
- Add support for ATH25 platforms
- Remove pointless locking code in some PCI platforms.
- Some improvments to EVA support
- Minor Alchemy cleanup"* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (185 commits)
MIPS: Add MFHC0 and MTHC0 instructions to uasm.
MIPS: Cosmetic cleanups of page table headers.
MIPS: Add CP0 macros for extended EntryLo registers
MIPS: Remove now unused definition of phys_t.
MIPS: Replace use of phys_t with phys_addr_t.
MIPS: Replace MIPS-specific 64BIT_PHYS_ADDR with generic PHYS_ADDR_T_64BIT
PCMCIA: Alchemy Don't select 64BIT_PHYS_ADDR in Kconfig.
MIPS: lib: memset: Clean up some MIPS{EL,EB} ifdefery
MIPS: iomap: Use __mem_{read,write}{b,w,l} for MMIO
MIPS: fix indentation.
MAINTAINERS: Add entry for BMIPS multiplatform kernel
MIPS: Enable VDSO randomization
MIPS: Remove a temporary hack for debugging cache flushes in SMTC configuration
MIPS: Remove declaration of obsolete arch_init_clk_ops()
MIPS: atomic.h: Reformat to fit in 79 columns
MIPS: Apply `.insn' to fixup labels throughout
MIPS: Fix microMIPS LL/SC immediate offsets
MIPS: Kconfig: Only allow 32-bit microMIPS builds
MIPS: signal.c: Fix an invalid cast in ISA mode bit handling
MIPS: mm: Only build one microassembler that is suitable
...
24 Nov, 2014
11 commits
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Now that the MIPS GIC irqchip lives in drivers/irqchip/, move
its header over to include/linux/irqchip/.Signed-off-by: Andrew Bresticker
Cc: Daniel Lezcano
Cc: Thomas Gleixner
Cc: Jason Cooper
Cc: Paul Burton
Cc: Qais Yousef
Cc: John Crispin
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8129/
Signed-off-by: Ralf Baechle -
Stop using the REG macros from gic.h and instead use proper iomem
accessors.Signed-off-by: Andrew Bresticker
Cc: Daniel Lezcano
Cc: Thomas Gleixner
Cc: Jason Cooper
Cc: Paul Burton
Cc: Qais Yousef
Cc: John Crispin
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8125/
Patchwork: https://patchwork.linux-mips.org/patch/8228/
Signed-off-by: Ralf Baechle -
The generic plat_irq_dispatch provided in irq_cpu.c is sufficient for
dispatching interrupts on SEAD-3 in legacy and vectored interrupt modes.Signed-off-by: Andrew Bresticker
Reviewed-by: Qais Yousef
Tested-by: Qais Yousef
Cc: Thomas Gleixner
Cc: Jeffrey Deans
Cc: Markos Chandras
Cc: Paul Burton
Cc: Jonas Gorski
Cc: John Crispin
Cc: David Daney
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7822/
Signed-off-by: Ralf Baechle -
The MIPS GIC supports 7 local interrupts, 2 of which are the GIC
local watchdog and count/compare timer. The remainder are CPU
interrupts which may optionally be re-routed through the GIC.
GIC hardware IRQs 0-6 are now used for local interrupts while
hardware IRQs 7+ are used for external (shared) interrupts.Note that the 5 CPU interrupts may not be re-routable through
the GIC. In that case mapping will fail and the vectors reported
in C0_IntCtl should be used instead. gic_get_c0_compare_int() and
gic_get_c0_perfcount_int() will return the correct IRQ number to
use for the C0 timer and perfcounter interrupts based on the
routability of those interrupts through the GIC.A separate irq_chip, with callbacks that mask/unmask the local
interrupt on all CPUs, is used for the C0 timer and performance
counter interrupts since all other platforms do not use the percpu
IRQ API for those interrupts.Malta, SEAD-3, and the GIC clockevent driver have been updated
to use local interrupts and the R4K clockevent driver has been
updated to poll for C0 timer interrupts through the GIC when
the GIC is present.Signed-off-by: Andrew Bresticker
Acked-by: Jason Cooper
Reviewed-by: Qais Yousef
Tested-by: Qais Yousef
Cc: Thomas Gleixner
Cc: Jeffrey Deans
Cc: Markos Chandras
Cc: Paul Burton
Cc: Jonas Gorski
Cc: John Crispin
Cc: David Daney
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7819/
Signed-off-by: Ralf Baechle -
Now that the GIC properly uses IRQ domains, kill off the per-platform
routing tables that were used to make the GIC appear transparent.This includes:
- removing the mapping tables and the support for applying them,
- moving GIC IPI support to the GIC driver,
- properly routing the i8259 through the GIC on Malta, and
- updating IRQ assignments on SEAD-3 when the GIC is present.Platforms no longer will pass an interrupt mapping table to gic_init.
Instead, they will pass the CPU interrupt vector (2 - 7) that they
expect the GIC to route interrupts to. Note that in EIC mode this
value is ignored and all GIC interrupts are routed to EIC vector 1.Signed-off-by: Andrew Bresticker
Acked-by: Jason Cooper
Reviewed-by: Qais Yousef
Tested-by: Qais Yousef
Cc: Thomas Gleixner
Cc: Jeffrey Deans
Cc: Markos Chandras
Cc: Paul Burton
Cc: Jonas Gorski
Cc: John Crispin
Cc: David Daney
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7816/
Signed-off-by: Ralf Baechle -
Use a simple IRQ domain for the MIPS GIC. Remove the gic_platform_init
callback as it's no longer necessary for it to set the irqchip.Signed-off-by: Andrew Bresticker
Acked-by: Jason Cooper
Reviewed-by: Qais Yousef
Tested-by: Qais Yousef
Cc: Thomas Gleixner
Cc: Jeffrey Deans
Cc: Markos Chandras
Cc: Paul Burton
Cc: Jonas Gorski
Cc: John Crispin
Cc: David Daney
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7811/
Signed-off-by: Ralf Baechle -
There's no need for platforms to have their own GIC irq_ack/irq_eoi
callbacks. irq_ack need only clear the GIC's edge detector on
edge-triggered interrupts and there's no need at all for irq_eoi.
Also get rid of the mask_ack callback since it's not necessary either.Signed-off-by: Andrew Bresticker
Acked-by: Jason Cooper
Reviewed-by: Qais Yousef
Tested-by: Qais Yousef
Cc: Thomas Gleixner
Cc: Jeffrey Deans
Cc: Markos Chandras
Cc: Paul Burton
Cc: Jonas Gorski
Cc: John Crispin
Cc: David Daney
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7809/
Signed-off-by: Ralf Baechle -
It's a duplicate of sead3-platform.c and is not even compiled.
Remove it before we start fixing up IRQ assignments.Signed-off-by: Andrew Bresticker
Reviewed-by: Qais Yousef
Tested-by: Qais Yousef
Cc: Thomas Gleixner
Cc: Jason Cooper
Cc: Jeffrey Deans
Cc: Markos Chandras
Cc: Paul Burton
Cc: Jonas Gorski
Cc: John Crispin
Cc: David Daney
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7807/
Signed-off-by: Ralf Baechle -
Nothing calls gic_{enable,disable}_interrupt() any more.
Signed-off-by: Andrew Bresticker
Reviewed-by: Qais Yousef
Tested-by: Qais Yousef
Cc: Thomas Gleixner
Cc: Jason Cooper
Cc: Andrew Bresticker
Cc: Jeffrey Deans
Cc: Markos Chandras
Cc: Paul Burton
Cc: Qais Yousef
Cc: Jonas Gorski
Cc: John Crispin
Cc: David Daney
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7806/
Signed-off-by: Ralf Baechle -
The hardware perf event driver and oprofile interpret the global
cp0_perfcount_irq differently: in the hardware perf event driver
it is an offset from MIPS_CPU_IRQ_BASE and in oprofile it is the
actual IRQ number. This still works most of the time since
MIPS_CPU_IRQ_BASE is usually 0, but is clearly wrong. Since the
performance counter interrupt may vary from platform to platform
like the C0 timer interrupt, add the optional get_c0_perfcount_int
hook which returns the IRQ number of the performance counter.
The hook should return < 0 if the performance counter interrupt is
shared with the timer. If the hook is not present, the CPU vector
reported in C0_IntCtl (cp0_perfcount_irq) is used.Signed-off-by: Andrew Bresticker
Reviewed-by: Qais Yousef
Tested-by: Qais Yousef
Cc: Thomas Gleixner
Cc: Jason Cooper
Cc: Andrew Bresticker
Cc: Jeffrey Deans
Cc: Markos Chandras
Cc: Paul Burton
Cc: Qais Yousef
Cc: Jonas Gorski
Cc: John Crispin
Cc: David Daney
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7805/
Signed-off-by: Ralf Baechle -
This isn't a module and shouldn't be one.
Signed-off-by: Ralf Baechle
Cc: Markos Chandras
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8202/
04 Nov, 2014
1 commit
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…l/git/wsa/linux into driver-core-next
Remove all .owner fields from platform drivers
24 Oct, 2014
2 commits
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This isn't a module and shouldn't be one.
Signed-off-by: Ralf Baechle
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A platform driver for which nothing ever registers the corresponding
platform device.Also it was driving the same hardware as sead3-i2c-drv.c so redundant
anyway and couldn't co-exist with that driver because each of them was
using a private spinlock to protect access to the same hardware
resources.This also fixes a randconfig problem:
arch/mips/mti-sead3/sead3-pic32-i2c-drv.c: In function 'i2c_platform_probe':
arch/mips/mti-sead3/sead3-pic32-i2c-drv.c:345:2: error: implicit declaration of
function 'i2c_add_numbered_adapter' [-Werror=implicit-function-declaration]
ret = i2c_add_numbered_adapter(&priv->adap);
^
arch/mips/mti-sead3/sead3-pic32-i2c-drv.c: In function
'i2c_platform_remove':
arch/mips/mti-sead3/sead3-pic32-i2c-drv.c:361:2: error: implicit declaration
of function 'i2c_del_adapter' [-Werror=implicit-function-declaration]
i2c_del_adapter(&priv->adap);Signed-off-by: Ralf Baechle
20 Oct, 2014
1 commit
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A platform_driver does not need to set an owner, it will be populated by the
driver core.Signed-off-by: Wolfram Sang
22 Sep, 2014
1 commit
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Move the SEAD-3 device-tree to arch/mips/boot/dts/ and update the
Makefiles accordingly. Since SEAD-3 requires the device-tree to be
built into the kernel, select BUILTIN_DTB when building for SEAD-3.Signed-off-by: Andrew Bresticker
Cc: Rob Herring
Cc: Pawel Moll
Cc: Mark Rutland
Cc: Ian Campbell
Cc: Kumar Gala
Cc: James Hogan
Cc: Paul Burton
Cc: David Daney
Cc: John Crispin
Cc: Jayachandran C
Cc: Qais Yousef
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7555/
Signed-off-by: Ralf Baechle
10 Jun, 2014
1 commit
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Pull MIPS updates from Ralf Baechle:
- three fixes for 3.15 that didn't make it in time
- limited Octeon 3 support.
- paravirtualization support
- improvment to platform support for Netlogix SOCs.
- add support for powering down the Malta eval board in software
- add many instructions to the in-kernel microassembler.
- add support for the BPF JIT.
- minor cleanups of the BCM47xx code.
- large cleanup of math emu code resulting in significant code size
reduction, better readability of the code and more accurate
emulation.
- improvments to the MIPS CPS code.
- support C3 power status for the R4k count/compare clock device.
- improvments to the GIO support for older SGI workstations.
- increase number of supported CPUs to 256; this can be reached on
certain embedded multithreaded ccNUMA configurations.
- various small cleanups, updates and fixes* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (173 commits)
MIPS: IP22/IP28: Improve GIO support
MIPS: Octeon: Add twsi interrupt initialization for OCTEON 3XXX, 5XXX, 63XX
DEC: Document the R4k MB ASIC mini interrupt controller
DEC: Add self as the maintainer
MIPS: Add microMIPS MSA support.
MIPS: Replace calls to obsolete strict_strto call with kstrto* equivalents.
MIPS: Replace obsolete strict_strto call with kstrto
MIPS: BFP: Simplify code slightly.
MIPS: Call find_vma with the mmap_sem held
MIPS: Fix 'write_msa_##' inline macro.
MIPS: Fix MSA toolchain support detection.
mips: Update the email address of Geert Uytterhoeven
MIPS: Add minimal defconfig for mips_paravirt
MIPS: Enable build for new system 'paravirt'
MIPS: paravirt: Add pci controller for virtio
MIPS: Add code for new system 'paravirt'
MIPS: Add functions for hypervisor call
MIPS: OCTEON: Add OCTEON3 to __get_cpu_type
MIPS: Add function get_ebase_cpunum
MIPS: Add minimal support for OCTEON3 to c-r4k.c
...
26 May, 2014
1 commit
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This patch moves data allocated using kzalloc to managed data allocated
using devm_kzalloc and cleans now unnecessary kfrees in probe and remove
functions. Also, the now unnecessary labels out_mem and out are done
away with. The error handling code is moved under if and return 0 is now
at the end of the function.The following Coccinelle semantic patch was used for making the change:
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
.probe = probefn,
.remove = removefn,
};@prb@
identifier platform.probefn, pdev;
expression e, e1, e2;
@@
probefn(struct platform_device *pdev, ...) {
dev, e1, e2)
...
?-kfree(e);
...+>
}@rem depends on prb@
identifier platform.removefn;
expression e;
@@
removefn(...) {
}Signed-off-by: Himangi Saraogi
Acked-by: Julia Lawall
Tested-by: Markos Chandras
Reviewed-by: Markos Chandras
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/6977/
Signed-off-by: Ralf Baechle
30 Apr, 2014
1 commit
-
The architecture code does not need to access the internals of the FDT
blob directly, so make the pointers to it void * and use char arrays
for section variables.Signed-off-by: Rob Herring
Cc: Ralf Baechle
Tested-by: Grant Likely
01 Apr, 2014
1 commit
-
The sead3-mtd.o is built for obj-y -- and hence this code is always
present. It will never be modular, so using module_init as an alias
for __initcall can be somewhat misleading.Fix this up now, so that we can relocate module_init from
init.h into module.h in the future. If we don't do this, we'd
have to add module.h to obviously non-modular code, and that
would be a worse thing.Note that direct use of __initcall is discouraged, vs. one
of the priority categorized subgroups. As __initcall gets
mapped onto device_initcall, our use of device_initcall
directly in this change means that the runtime impact is
zero -- it will remain at level 6 in initcall ordering.We also fix a missing semicolon, which this change uncovers.
Signed-off-by: Paul Gortmaker
Reported-by: kbuild test robot
Cc: linux-mips@linux-mips.org
Cc: fengguang.wu@intel.com
Patchwork: https://patchwork.linux-mips.org/patch/6412/
Signed-off-by: Ralf Baechle
25 Jan, 2014
1 commit
-
None of these files are actually using any __init type directives
and hence don't need to include . Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.Signed-off-by: Paul Gortmaker
Signed-off-by: John Crispin
Patchwork: http://patchwork.linux-mips.org/patch/6320/