Commit graph

288 commits

Author SHA1 Message Date
Linus Torvalds
b84da9fa47 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "These are the highlists of the main MIPS pull request for 4.4:

   - Add latencytop support
   - Support appended DTBs
   - VDSO support and initially use it for gettimeofday.
   - Drop the .MIPS.abiflags and ELF NOTE sections from vmlinux
   - Support for the 5KE, an internal test core.
   - Switch all MIPS platfroms to libata drivers.
   - Improved support, cleanups for ralink and Lantiq platforms.
   - Support for the new xilfpga platform.
   - A number of DTB improvments for BMIPS.
   - Improved support for CM and CPS.
   - Minor JZ4740 and BCM47xx enhancements"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (120 commits)
  MIPS: idle: add case for CPU_5KE
  MIPS: Octeon: Support APPENDED_DTB
  MIPS: vmlinux: create a section for appended DTB
  MIPS: Clean up compat_siginfo_t
  MIPS: Fix PAGE_MASK definition
  MIPS: BMIPS: Enable GZIP ramdisk and timed printks
  MIPS: Add xilfpga defconfig
  MIPS: xilfpga: Add mipsfpga platform code
  MIPS: xilfpga: Add xilfpga device tree files.
  dt-bindings: MIPS: Document xilfpga bindings and boot style
  MIPS: Make MIPS_CMDLINE_DTB default
  MIPS: Make the kernel arguments from dtb available
  MIPS: Use USE_OF as the guard for appended dtb
  MIPS: BCM63XX: Use pr_* instead of printk
  MIPS: Loongson: Cleanup CONFIG_LOONGSON_SUSPEND.
  MIPS: lantiq: Disable xbar fpi burst mode
  MIPS: lantiq: Force the crossbar to big endian
  MIPS: lantiq: Initialize the USB core on boot
  MIPS: lantiq: Return correct value for fpi clock on ar9
  MIPS: ralink: Add missing clock on rt305x
  ...
2015-11-15 09:10:53 -08:00
Aaro Koskinen
651d19fb10 MIPS: Octeon: Support APPENDED_DTB
Use appended DTB when available.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11115/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-11-12 11:35:48 +01:00
Marc Zyngier
5d4c9bc776 irqdomain: Use irq_domain_get_of_node() instead of direct field access
The struct irq_domain contains a "struct device_node *" field
(of_node) that is almost the only link between the irqdomain
and the device tree infrastructure.

In order to prepare for the removal of that field, convert all
users to use irq_domain_get_of_node() instead.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-and-tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: Graeme Gregory <graeme@xora.org.uk>
Cc: Jake Oshins <jakeo@microsoft.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Link: http://lkml.kernel.org/r/1444737105-31573-2-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-10-13 19:01:23 +02:00
Matt Bennett
66803dd919 MIPS: Octeon: Fix kernel panic on startup from memory corruption
During development it was found that a number of builds would panic
during the kernel init process, more specifically in 'delayed_fput()'.
The panic showed the kernel trying to access a memory address of
'0xb7fdc00' while traversing the 'delayed_fput_list' structure.
Comparing this memory address to the value of the pointer used on
builds that did not panic confirmed that the pointer on crashing
builds must have been corrupted at some stage earlier in the init
process.

By traversing the list earlier and earlier in the code it was found
that 'plat_mem_setup()' was responsible for corrupting the list.
Specifically the line:

    memory = cvmx_bootmem_phy_alloc(mem_alloc_size,
			__pa_symbol(&__init_end), -1,
			0x100000,
			CVMX_BOOTMEM_FLAG_NO_LOCKING);

Which would eventually call:

    cvmx_bootmem_phy_set_size(new_ent_addr,
		cvmx_bootmem_phy_get_size
		(ent_addr) -
		(desired_min_addr -
			ent_addr));

Where 'new_ent_addr'=0x4800000 (the address of 'delayed_fput_list')
and the second argument (size)=0xb7fdc00 (the address causing the
kernel panic). The job of this part of 'plat_mem_setup()' is to
allocate chunks of memory for the kernel to use. At the start of
each chunk of memory the size of the chunk is written, hence the
value 0xb7fdc00 is written onto memory at 0x4800000, therefore the
kernel panics when it goes back to access 'delayed_fput_list' later
on in the initialisation process.

On builds that were not crashing it was found that the compiler had
placed 'delayed_fput_list' at 0x4800008, meaning it wasn't corrupted
(but something else in memory was overwritten).

As can be seen in the first function call above the code begins to
allocate chunks of memory beginning from the symbol '__init_end'.
The MIPS linker script (vmlinux.lds.S) however defines the .bss
section to begin after '__init_end'. Therefore memory within the
.bss section is allocated to the kernel to use (System.map shows
'delayed_fput_list' and other kernel structures to be in .bss).

To stop the kernel panic (and the .bss section being corrupted)
memory should begin being allocated from the symbol '_end'.

Signed-off-by: Matt Bennett <matt.bennett@alliedtelesis.co.nz>
Acked-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: aleksey.makarov@auriga.com
Patchwork: https://patchwork.linux-mips.org/patch/11251/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-10-02 19:19:55 +02:00
Thomas Gleixner
bd0b9ac405 genirq: Remove irq argument from irq flow handlers
Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-09-16 15:47:51 +02:00
Christoph Hellwig
6894258eda dma-mapping: consolidate dma_{alloc,free}_{attrs,coherent}
Since 2009 we have a nice asm-generic header implementing lots of DMA API
functions for architectures using struct dma_map_ops, but unfortunately
it's still missing a lot of APIs that all architectures still have to
duplicate.

This series consolidates the remaining functions, although we still need
arch opt outs for two of them as a few architectures have very
non-standard implementations.

This patch (of 5):

The coherent DMA allocator works the same over all architectures supporting
dma_map operations.

This patch consolidates them and converges the minor differences:

 - the debug_dma helpers are now called from all architectures, including
   those that were previously missing them
 - dma_alloc_from_coherent and dma_release_from_coherent are now always
   called from the generic alloc/free routines instead of the ops
   dma-mapping-common.h always includes dma-coherent.h to get the defintions
   for them, or the stubs if the architecture doesn't support this feature
 - checks for ->alloc / ->free presence are removed.  There is only one
   magic instead of dma_map_ops without them (mic_dma_ops) and that one
   is x86 only anyway.

Besides that only x86 needs special treatment to replace a default devices
if none is passed and tweak the gfp_flags.  An optional arch hook is provided
for that.

[linux@roeck-us.net: fix build]
[jcmvbkbc@gmail.com: fix xtensa]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-10 13:29:01 -07:00
Aaro Koskinen
cef232ec86 MIPS: Octeon: Fix management port MII address on Kontron S1901
Management port MII address is incorrect on Kontron S1901 resulting
in broken networking. Fix by providing definitions for the in-tree DT
pruning code.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10914/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:11 +02:00
Janne Huttunen
31705376a2 MIPS: Octeon: Support interfaces 4 and 5
Add the support for mapping between interface/port numbers and IPD port
numbers also for the additional interfaces some Octeon II models have.

Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10967/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:11 +02:00
Janne Huttunen
153bfe3813 MIPS: Octeon: Initialize CN68XX PKO
CN68XX requires a different PKO configuration. This patch provides
just enough setup to get the XAUI interfaces on CN6880 working with
default parameters.

Signed-off-by: Janne Huttunen <janne.huttunen@nsn.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10974/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:10 +02:00
Janne Huttunen
f8023da8ae STAGING: Octeon: Support CN68XX style WQE
CN68XX has a bit different WQE structure. This patch provides the new
definitions and converts the code to use the proper variant based on
the actual model.

Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10973/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:10 +02:00
Janne Huttunen
b92084ba54 MIPS: Octeon: Configure minimum PKO packet sizes on CN68XX
CN68XX has common minimum packet size filters that need to be configured
for the traffic to work. Just set them to a default value.

Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10963/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:09 +02:00
Janne Huttunen
4397564542 MIPS: Octeon: Configure XAUI pkinds
Configure the pkinds of XAUI interfaces on Octeon models that have
them. This simple configuration uses 1:1 mapping between the PIP input
port number and the selected pkind.

Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10971/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:09 +02:00
Janne Huttunen
2c8c3f0201 MIPS: Octeon: Support additional interfaces on CN68XX
CN68XX has 9 interfaces.

Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10968/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:08 +02:00
Janne Huttunen
c0034c30ed MIPS: Octeon: Fix CN6880 hang on XAUI init
Some CN68XX series Octeon II chips seem to hang if a reset is issued on
XAUI initialization. Avoid the hang by disabling the reset on affected
models. Tested on Cavium EBB6800 evaluation board and Kontron S1901 board.

Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: http://patchwork.linux-mips.org/patch/10970/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03 12:08:08 +02:00
Thomas Gleixner
56a86c352b MIPS: octeon: Replace the homebrewn flow handler
The gpio interrupt handling of octeon contains a homebrewn flow
handler which calls either handle_level_irq or handle_edge_irq
depending on the trigger type. Thats an extra conditional and call in
the interrupt handling path. The proper way to handle different types
and therefor different flows is to update the handler in the
irq_set_type() callback.

Remove the extra indirection and add the handler update to
octeon_irq_ciu_gpio_set_type(). At mapping time it defaults to
handle_level_irq which gets updated if the device tree contains a
different trigger type.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: David Daney <david.daney@cavium.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: linux-mips@linux-mips.org
Cc: LKML <linux-kernel@vger.kernel.org>
Patchwork: https://patchwork.linux-mips.org/patch/10704/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-08-26 15:23:32 +02:00
Jiang Liu
5c1594224f MIPS: irq: Use access helper irq_data_get_affinity_mask()
This is a preparatory patch for moving irq_data struct members.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: LKML <linux-kernel@vger.kernel.org>
Patchwork: https://patchwork.linux-mips.org/patch/10699/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-08-26 15:23:28 +02:00
Alex Smith
4ace6139bf MIPS: SMP: Don't increment irq_count multiple times for call function IPIs
The majority of SMP platforms handle their IPIs through do_IRQ()
which calls irq_{enter/exit}(). When a call function IPI is received,
smp_call_function_interrupt() is called which also calls
irq_{enter,exit}(), meaning irq_count is raised twice.

When tick broadcasting is used (which is implemented via a call
function IPI), this incorrectly causes all CPU idle time on the core
receiving broadcast ticks to be accounted as time spent servicing
IRQs, as account_process_tick() will account as such if irq_count is
greater than 1. This results in 100% CPU usage being reported on a
core which receives its ticks via broadcast.

This patch removes the SMP smp_call_function_interrupt() wrapper which
calls irq_{enter,exit}(). Platforms which handle their IPIs through
do_IRQ() now call generic_smp_call_function_interrupt() directly to
avoid incrementing irq_count a second time. Platforms which don't
(loongson, sgi-ip27, sibyte) call generic_smp_call_function_interrupt()
wrapped in irq_{enter,exit}().

Signed-off-by: Alex Smith <alex.smith@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10770/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-08-03 09:25:12 +02:00
Linus Torvalds
4da3064d17 Devicetree changes for v4.2
A whole lot of bug fixes. Nothing stands out here except the ability to
 enable CONFIG_OF on every architecture, and an import of a newer version
 of dtc.
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Merge tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux

Pull devicetree updates from Grant Likely:
 "A whole lot of bug fixes.

  Nothing stands out here except the ability to enable CONFIG_OF on
  every architecture, and an import of a newer version of dtc"

* tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: (22 commits)
  of/irq: Rename "intc_desc" to "of_intc_desc" to fix OF on sh
  of/irq: Fix pSeries boot failure
  Documentation: DT: Fix a typo in the filename "lantiq,<chip>-pinumx.txt"
  of: define of_find_node_by_phandle for !CONFIG_OF
  of/address: use atomic allocation in pci_register_io_range()
  of: Add vendor prefix for Zodiac Inflight Innovations
  dt/fdt: add empty versions of early_init_dt_*_memory_arch
  of: clean-up unnecessary libfdt include paths
  of: make unittest select OF_EARLY_FLATTREE instead of depend on it
  of: make CONFIG_OF user selectable
  MIPS: prepare for user enabling of CONFIG_OF
  of/fdt: fix argument name and add comments of unflatten_dt_node()
  of: return NUMA_NO_NODE from fallback of_node_to_nid()
  tps6507x.txt: Remove executable permission
  of/overlay: Grammar s/an negative/a negative/
  of/fdt: Make fdt blob input parameters of unflatten functions const
  of: add helper function to retrive match data
  of: Grammar s/property exist/property exists/
  of: Move OF flags to be visible even when !CONFIG_OF
  scripts/dtc: Update to upstream version 9d3649bd3be245c9
  ...
2015-07-01 19:40:18 -07:00
Linus Torvalds
78c10e556e Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:

 - Improvements to the tlb_dump code
 - KVM fixes
 - Add support for appended DTB
 - Minor improvements to the R12000 support
 - Minor improvements to the R12000 support
 - Various platform improvments for BCM47xx
 - The usual pile of minor cleanups
 - A number of BPF fixes and improvments
 - Some improvments to the support for R3000 and DECstations
 - Some improvments to the ATH79 platform support
 - A major patchset for the JZ4740 SOC adding support for the CI20 platform
 - Add support for the Pistachio SOC
 - Minor BMIPS/BCM63xx platform support improvments.
 - Avoid "SYNC 0" as memory barrier when unlocking spinlocks
 - Add support for the XWR-1750 board.
 - Paul's __cpuinit/__cpuinitdata cleanups.
 - New Malta CPU board support large memory so enable ZONE_DMA32.

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (131 commits)
  MIPS: spinlock: Adjust arch_spin_lock back-off time
  MIPS: asmmacro: Ensure 64-bit FP registers are used with MSA
  MIPS: BCM47xx: Simplify handling SPROM revisions
  MIPS: Cobalt Don't use module_init in non-modular MTD registration.
  MIPS: BCM47xx: Move NVRAM driver to the drivers/firmware/
  MIPS: use for_each_sg()
  MIPS: BCM47xx: Don't select BCMA_HOST_PCI
  MIPS: BCM47xx: Add helper variable for storing NVRAM length
  MIPS: IRQ/IP27: Move IRQ allocation API to platform code.
  MIPS: Replace smp_mb with release barrier function in unlocks.
  MIPS: i8259: DT support
  MIPS: Malta: Basic DT plumbing
  MIPS: include errno.h for ENODEV in mips-cm.h
  MIPS: Define GCR_GIC_STATUS register fields
  MIPS: BPF: Introduce BPF ASM helpers
  MIPS: BPF: Use BPF register names to describe the ABI
  MIPS: BPF: Move register definition to the BPF header
  MIPS: net: BPF: Replace RSIZE with SZREG
  MIPS: BPF: Free up some callee-saved registers
  MIPS: Xtalk: Update xwidget.h with known Xtalk device numbers
  ...
2015-06-27 12:44:34 -07:00
Jiang Liu
25aae56137 MIPS, IRQ: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: David Daney <david.daney@cavium.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: x86@kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-acpi@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10086/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-21 21:53:47 +02:00
Herbert Xu
c0b59fafe3 Merge branch 'mvebu/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Merge the mvebu/drivers branch of the arm-soc tree which contains
just a single patch bfa1ce5f38 ("bus:
mvebu-mbus: add mv_mbus_dram_info_nooverlap()") that happens to be
a prerequisite of the new marvell/cesa crypto driver.
2015-06-19 22:07:07 +08:00
Rob Herring
63a4aea556 of: clean-up unnecessary libfdt include paths
With the libfdt include fixups to use "" instead of <> in the
latest dtc import in commit 4760597 (scripts/dtc: Update to upstream
version 9d3649bd3be245c9), it is no longer necessary to add explicit
include paths to use libfdt. Remove these across the kernel.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linuxppc-dev@lists.ozlabs.org
2015-06-04 20:16:47 -05:00
LABBE Corentin
1beb6b92e0 crypto: octeon - use md5 IV MD5_HX instead of their raw value
Since MD5 IV are now available in crypto/md5.h, use them.

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-05-18 12:20:21 +08:00
Linus Torvalds
6496edfce9 This is the final removal (after several years!) of the obsolete cpus_*
functions, prompted by their mis-use in staging.
 
 With these function removed, all cpu functions should only iterate to
 nr_cpu_ids, so we finally only allocate that many bits when cpumasks
 are allocated offstack.
 
 Thanks,
 Rusty.
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Merge tag 'cpumask-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull final removal of deprecated cpus_* cpumask functions from Rusty Russell:
 "This is the final removal (after several years!) of the obsolete
  cpus_* functions, prompted by their mis-use in staging.

  With these function removed, all cpu functions should only iterate to
  nr_cpu_ids, so we finally only allocate that many bits when cpumasks
  are allocated offstack"

* tag 'cpumask-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (25 commits)
  cpumask: remove __first_cpu / __next_cpu
  cpumask: resurrect CPU_MASK_CPU0
  linux/cpumask.h: add typechecking to cpumask_test_cpu
  cpumask: only allocate nr_cpumask_bits.
  Fix weird uses of num_online_cpus().
  cpumask: remove deprecated functions.
  mips: fix obsolete cpumask_of_cpu usage.
  x86: fix more deprecated cpu function usage.
  ia64: remove deprecated cpus_ usage.
  powerpc: fix deprecated CPU_MASK_CPU0 usage.
  CPU_MASK_ALL/CPU_MASK_NONE: remove from deprecated region.
  staging/lustre/o2iblnd: Don't use cpus_weight
  staging/lustre/libcfs: replace deprecated cpus_ calls with cpumask_
  staging/lustre/ptlrpc: Do not use deprecated cpus_* functions
  blackfin: fix up obsolete cpu function usage.
  parisc: fix up obsolete cpu function usage.
  tile: fix up obsolete cpu function usage.
  arm64: fix up obsolete cpu function usage.
  mips: fix up obsolete cpu function usage.
  x86: fix up obsolete cpu function usage.
  ...
2015-04-20 10:19:03 -07:00
Linus Torvalds
bfaf245022 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "This is the main pull request for MIPS for Linux 4.1.  Most
  noteworthy:

   - Add more Octeon-optimized crypto functions
   - Octeon crypto preemption and locking fixes
   - Little endian support for Octeon
   - Use correct CSR to soft reset Octeons
   - Support LEDs on the Octeon-based DSR-1000N
   - Fix PCI interrupt mapping for the Octeon-based DSR-1000N
   - Mark prom_free_prom_memory() as __init for a number of systems
   - Support for Imagination's Pistachio SOC.  This includes arch and
     CLK bits.  I'd like to merge pinctrl bits later
   - Improve parallelism of csum_partial for certain pipelines
   - Organize DTB files in subdirs like other architectures
   - Implement read_sched_clock for all MIPS platforms other than
     Octeon
   - Massive series of 38 fixes and cleanups for the FPU emulator /
     kernel
   - Further FPU remulator work to support new features.  This sits on a
     separate branch which also has been pulled into the 4.1 KVM branch
   - Clean up and fixes for the SEAD3 eval board; remove unused file
   - Various updates for Netlogic platforms
   - A number of small updates for Loongson 3 platforms
   - Increase the memory limit for ATH79 platforms to 256MB
   - A fair number of fixes and updates for BCM47xx platforms
   - Finish the implementation of XPA support
   - MIPS FDC support.  No, not floppy controller but Fast Debug Channel :)
   - Detect the R16000 used in SGI legacy platforms
   - Fix Kconfig dependencies for the SSB bus support"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (265 commits)
  MIPS: Makefile: Fix MIPS ASE detection code
  MIPS: asm: elf: Set O32 default FPU flags
  MIPS: BCM47XX: Fix detecting Microsoft MN-700 & Asus WL500G
  MIPS: Kconfig: Disable SMP/CPS for 64-bit
  MIPS: Hibernate: flush TLB entries earlier
  MIPS: smp-cps: cpu_set FPU mask if FPU present
  MIPS: lose_fpu(): Disable FPU when MSA enabled
  MIPS: ralink: add missing symbol for RALINK_ILL_ACC
  MIPS: ralink: Fix bad config symbol in PCI makefile.
  SSB: fix Kconfig dependencies
  MIPS: Malta: Detect and fix bad memsize values
  Revert "MIPS: Avoid pipeline stalls on some MIPS32R2 cores."
  MIPS: Octeon: Delete override of cpu_has_mips_r2_exec_hazard.
  MIPS: Fix cpu_has_mips_r2_exec_hazard.
  MIPS: kernel: entry.S: Set correct ISA level for mips_ihb
  MIPS: asm: spinlock: Fix addiu instruction for R10000_LLSC_WAR case
  MIPS: r4kcache: Use correct base register for MIPS R6 cache flushes
  MIPS: Kconfig: Fix typo for the r2-to-r6 emulator kernel parameter
  MIPS: unaligned: Fix regular load/store instruction emulation for EVA
  MIPS: unaligned: Surround load/store macros in do {} while statements
  ...
2015-04-17 15:50:54 -04:00
Ralf Baechle
3e20a26b02 Merge branch '4.0-fixes' into mips-for-linux-next 2015-04-13 16:03:32 +02:00
Ralf Baechle
87842661a3 MIPS: Octeon: Don't set .owner.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-08 01:10:53 +02:00
Paul Martin
d2a948d2db MIPS: Octeon: Make octeon-md5 driver endian-agnostic
The octeon crypto co-processor expects values to be big endian.
Wrap the data transfers with cpu_to_be64() and be64_to_cpu()
transformations.

This passes for all the MD5 test vectors in crypto/testmgr.h

Signed-off-by: Paul Martin <paul.martin@codethink.co.uk>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9631/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:22:15 +02:00
Paul Martin
b0abf36ffd MIPS: Octeon: Set appropriate endianness in L2C registers
Signed-off-by: Paul Martin <paul.martin@codethink.co.uk>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9629/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:22:14 +02:00
Paul Martin
11db04c8f3 MIPS: Octeon: Turn hardware bitfields and structures inside out.
Although the proper way to do this for bitfields would be to use
the macro that Ralf has provided, this is a little easier to
understand as a diff.

Signed-off-by: Paul Martin <paul.martin@codethink.co.uk>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9628/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:22:14 +02:00
Aaro Koskinen
05f5507f59 MIPS: OCTEON: add GPIO LED support for DSR-1000N
DSR-1000N board has two GPIO LEDs next to USB ports. Add support for them.

[ralf@linux-mips.org: Resolved conflict due to the moving of the DTS files
into vendor subdirectories.]

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9624/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:22:10 +02:00
Aaro Koskinen
aa816c1b39 MIPS: mark prom_free_prom_memory() everywhere with __init
On OCTEON the function is non-trivial and we can potentially even save
some memory.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9338/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:58 +02:00
Chandrakala Chavva
fe2360f8f5 MIPS: OCTEON: Use correct CSR to soft reset
This fixes reboot for Octeon III boards

[ralf@linux-mips.org: Dropped segment for function cvmx_reset_octeon()
which was removed by the preceeding commit.]

Signed-off-by: Chandrakala Chavva <cchavva@caviumnetworks.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9464/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:44 +02:00
David Daney
7f481716bc MIPS: OCTEON: Use device tree to probe for flash chips.
Don't assume they are there, the device tree will tell us.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9461/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:43 +02:00
David Daney
8c1e6b14e2 MIPS: OCTEON: Protect accesses to bootbus flash with octeon_bootbus_sem.
Without this, we get bus errors.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9460/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:43 +02:00
David Daney
24d4e7f642 MIPS: OCTEON: Add semaphore to serialize bootbus accesses.
Some hardware blocks attached to the OCTEON bootbus run asynchronously
to accesses from the CPUs.  These include MMC/SD host, CF(when using
DMA), and NAND controller.  A bus error, or corrupt data may occur if
a CPU is trying to access a bootbus connected device at the same time
the bus is running asynchronous operations.

To work around these problems we add this semaphore that must be
acquired before initiating bootbus activity.  Subsequent patches will
add users for this.

Signed-off-by: David Daney <david.daney@cavium.com>
[aleksey.makarov@auriga.com: combine the patches]
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Signed-off-by: Chandrakala Chavva <cchavva@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9459/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:42 +02:00
David Daney
534c158ea6 MIPS: Octeon: Handle bootloader structures in little-endian mode.
Compensate for the differences in the layout of in-memory bootloader
information as seen from little-endian mode.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9590/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01 17:21:23 +02:00
Chandrakala Chavva
9a49899eb8 MIPS: OCTEON: Use correct CSR to soft reset
Also delete unused cvmx_reset_octeon()
This fixes reboot for Octeon III boards

Signed-off-by: Chandrakala Chavva <cchavva@caviumnetworks.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: David Daney <david.daney@cavium.com>
Patchwork: https://patchwork.linux-mips.org/patch/9471/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-25 13:47:59 +01:00
Aaro Koskinen
a8667d706d MIPS: OCTEON: dma-octeon: fix OHCI USB config check
CONFIG_USB_OCTEON_OHCI is deprecated and no longer needed to use OHCI
on OCTEON II. Instead, CONFIG_USB_OHCI_HCD_PLATFORM should be used.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9421/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-25 13:47:57 +01:00
Aaro Koskinen
041a80c5c0 CRYPTO: Octeon: Add SHA512 module
Add OCTEON SHA512 module.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9496/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-24 15:15:43 +01:00
Aaro Koskinen
8ab368303c CRYPTO: Octeon: Add SHA256 module
Add OCTEON SHA256 module.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9493/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-24 15:15:41 +01:00
Aaro Koskinen
63bb06ee82 CRYPTO: Octeon: Add SHA1 module
Add OCTEON SHA1 module.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9495/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-24 15:15:40 +01:00
Aaro Koskinen
a3d2a10be8 CRYPTO: Octeon: Add instruction definitions for SHA1/256/512
Add instruction definitions for SHA1/256/512.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9491/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-24 15:15:39 +01:00
Aaro Koskinen
e606ee200a CRYPTO: Octeon: always disable preemption when using crypto engine
Always disable preemption on behalf of the drivers when crypto engine
is taken into use. This will simplify the usage.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9494/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-24 15:15:37 +01:00
Aaro Koskinen
f7715e72f5 CRYPTO: Octeon: Don't disable bottom half in octeon-md5
Don't disable bottom half while the crypto engine is in use, as it
should be unnecessary: All kernel crypto engine usage is wrapped with
crypto engine state save/restore, so if we get interrupted by softirq
that uses crypto they should save and restore our context.

This actually fixes an issue when running OCTEON MD5 with interrupts
disabled (tcrypt mode=302). There's a WARNING because the module is
trying to enable the bottom half with irqs disabled:

[   52.656610] ------------[ cut here ]------------
[   52.661439] WARNING: CPU: 1 PID: 428 at /home/aaro/git/linux/kernel/softirq.c:150 __local_bh_enable_ip+0x9c/0xd8()
[   52.671780] Modules linked in: tcrypt(+)
[...]
[   52.763539] [<ffffffff8114082c>] warn_slowpath_common+0x94/0xd8
[   52.769465] [<ffffffff81144614>] __local_bh_enable_ip+0x9c/0xd8
[   52.775390] [<ffffffff81119574>] octeon_md5_final+0x12c/0x1e8
[   52.781144] [<ffffffff81337050>] shash_compat_digest+0xd0/0x1b0

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/9490/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-24 15:15:36 +01:00
Aaro Koskinen
fbaa4dfd51 crypto: octeon - add SHA512 module
Add OCTEON SHA512 module.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-03-10 20:48:58 +11:00
Aaro Koskinen
c3d0def620 crypto: octeon - add SHA256 module
Add OCTEON SHA256 module.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-03-10 20:48:58 +11:00
Aaro Koskinen
82be2dcfa6 crypto: octeon - add SHA1 module
Add OCTEON SHA1 module.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-03-10 20:48:58 +11:00
Aaro Koskinen
da3cd5d7a7 crypto: octeon - add instruction definitions for SHA1/256/512
Add instruction definitions for SHA1/256/512.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-03-10 20:48:57 +11:00
Aaro Koskinen
c3bc38d9fb crypto: octeon - always disable preemption when using crypto engine
Always disable preemption on behalf of the drivers when crypto engine
is taken into use. This will simplify the usage.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-03-10 20:48:57 +11:00