The datasheet said that emac register size is 0x10000 not 0x104
Signed-off-by: NCorentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
[wens@csie.org: Fixed commit subject prefix]
Signed-off-by: NChen-Yu Tsai <wens@csie.org>

Convert 'u8 inline' to 'inline u8' to be the same style used by the rest
of the kernel.

Miscellanea:

jornada_ssp_reverse is an odd function.
It is declared inline but is also EXPORT_SYMBOL.
It is also apparently only used by jornada720_ssp.c
Likely the EXPORT_SYMBOL could be removed and the function
converted to static.

The addition of static and removal of EXPORT_SYMBOL was not done.

Link: http://lkml.kernel.org/r/5bd3b2bf39c6c9caf773949f18158f8f5ec08582.1499284835.git.joe@perches.comSigned-off-by: NJoe Perches <joe@perches.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

asmlinkage is either 'extern "C"' or blank.

Move the uses of asmlinkage before the return types to be similar
to the rest of the kernel.

Link: http://lkml.kernel.org/r/005b8e120650c6a13b541e420f4e3605603fe9e6.1499284835.git.joe@perches.comSigned-off-by: NJoe Perches <joe@perches.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krcmar <rkrcmar@redhat.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Now that explicitly executed loaders are loaded in the mmap region, we
have more freedom to decide where we position PIE binaries in the
address space to avoid possible collisions with mmap or stack regions.

4MB is chosen here mainly to have parity with x86, where this is the
traditional minimum load location, likely to avoid historically
requiring a 4MB page table entry when only a portion of the first 4MB
would be used (since the NULL address is avoided).

For ARM the position could be 0x8000, the standard ET_EXEC load address,
but that is needlessly close to the NULL address, and anyone running PIE
on 32-bit ARM will have an MMU, so the tight mapping is not needed.

Link: http://lkml.kernel.org/r/1498154792-49952-2-git-send-email-keescook@chromium.orgSigned-off-by: NKees Cook <keescook@chromium.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Pratyush Anand <panand@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Daniel Micay <danielmicay@gmail.com>
Cc: Dmitry Safonov <dsafonov@virtuozzo.com>
Cc: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Qualys Security Advisory <qsa@qualys.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Commit 7dd96816 ("bitmap: bitmap_equal memcmp optimization") was
rather more restrictive than necessary; we can use memcmp() to implement
bitmap_equal() as long as the number of bits can be proved to be a
multiple of 8.  And architectures other than s390 may be able to make
good use of this optimisation.

[arnd@arndb.de: fix build: add a memcmp() declaration]
  Link: http://lkml.kernel.org/r/20170630153908.3439707-1-arnd@arndb.de
Link: http://lkml.kernel.org/r/20170628153221.11322-5-willy@infradead.orgSigned-off-by: NMatthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NRasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The global variable 'rd_size' is declared as 'int' in source file
arch/arm/kernel/atags_parse.c and as 'unsigned long' in
drivers/block/brd.c.  Fix this inconsistency.

Additionally, remove the declarations of rd_image_start, rd_prompt and
rd_doload from parse_tag_ramdisk() since these duplicate existing
declarations in <linux/initrd.h>.

Link: http://lkml.kernel.org/r/20170627065024.12347-1-bart.vanassche@wdc.comSigned-off-by: NBart Van Assche <bart.vanassche@sandisk.com>
Acked-by: NRussell King <rmk+kernel@armlinux.org.uk>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jan Kara <jack@suse.cz>
Cc: Jason Yan <yanaijie@huawei.com>
Cc: Zhaohongjiang <zhaohongjiang@huawei.com>
Cc: Miao Xie <miaoxie@huawei.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Since commit 97ad2bdc ("ARM/PCI: Convert PCI scan API to
pci_scan_root_bus_bridge()") the space for struct pci_sys_data is allocated
by pci_alloc_host_bridge() as part of the struct pci_host_bridge.

Therefore, failure paths must deallocate the entire pci_host_bridge by
using pci_free_host_bridge().

Fixes: 97ad2bdc ("ARM/PCI: Convert PCI scan API to pci_scan_root_bus_bridge()")
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
[bhelgaas: changelog]
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Andrew Lunn <andrew@lunn.ch>

Since commit fcc8487d ("uapi: export all headers under uapi
directories"), all (and only) headers under uapi directories are
exported, but asm-generic wrappers are still exceptions.

To complete de-coupling the uapi from kernel headers, move generic-y
of exported headers to uapi/asm/Kbuild.

With this change, "make headers_install" will just need to parse
uapi/asm/Kbuild to build up exported headers.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

no users left
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

on MMU targets EFAULT is possible here.  Make both return 0 or error,
passing what used to be the return value of flat_get_addr_from_rp()
by reference.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

The S500 SoC can start secondary CPUs without busy-looping for pen_release,
so simplify the SMP code compared to the LeMaker kernel tree.

Fixes: 172067e0 ("ARM: owl: Implement CPU enable-method for S500")
Suggested-by: NArnd Bergmann <arnd@arndb.de>
Cc: David Liu <liuwei@actions-semi.com>
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

Rely on the fallback to "Generic DT based system".
This change is visible in /proc/cpuinfo.

Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

Legacy PCI host controllers (ie host controllers that set-up the PCI bus
through the ARM pci_common_init() API) are currently relying on
pci_fixup_irqs() to assign legacy PCI irqs to devices.  This is not ideal
in that pci_fixup_irqs() assigns IRQs for all PCI devices present in a given
system some of which may well be enabled by the time pci_fixup_irqs() is
called (ie a system with multiple host controllers).  With the introduction
of struct pci_host_bridge.(*map_irq) pointer it is possible to assign IRQs
for all devices originating from a PCI host bridge at probe time; this is
implemented through pci_assign_irq() that relies on the struct
pci_host_bridge.map_irq pointer to map IRQ for a given device.

The benefits this brings are twofold:

  - the IRQ for a device is assigned once at probe time
  - the IRQ assignment works also for hotplugged devices

Remove pci_fixup_irqs() call from bios32 code and rely on pci_assign_irq()
to carry out the IRQ mapping at device probe time.

The map_irq() and swizzle_irq() struct pci_host_bridge callbacks are set-up
in the struct pci_host_bridge created in the bios32 pcibios_init_hw()
function and mach-* code paths (for PCI mach implementations that require a
specific struct hw_pci.(*scan) function callback).
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
[bhelgaas: folded in fixes from Lorenzo:
http://lkml.kernel.org/r/20170701140629.GC8977@red-moon]
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Andrew Lunn <andrew@lunn.ch>

This reverts commits 2c0cba48 ("arm: sun8i: sunxi-h3-h5: Add dt node
for the syscon control module") to 2428fd0f ("arm64: defconfig: Enable
dwmac-sun8i driver on defconfig") and 3432a86e ("arm: sun8i:
orangepipc: use internal phy-mode") to 5a79b4f2 ("arm: sun8i:
orangepi-2: use internal phy-mode") that should be merged
through the arm-soc tree, and end up in merge conflicts and build failures.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

With the new task struct randomization, we can run into a build
failure for certain random seeds, which will place fields beyond
the allow immediate size in the assembly:

arch/arm/kernel/entry-armv.S: Assembler messages:
arch/arm/kernel/entry-armv.S:803: Error: bad immediate value for offset (4096)

Only two constants in asm-offset.h are affected, and I'm changing
both of them here to work correctly in all configurations.

One more macro has the problem, but is currently unused, so this
removes it instead of adding complexity.
Suggested-by: NArd Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
[kees: Adjust commit log slightly]
Signed-off-by: NKees Cook <keescook@chromium.org>

DMA operations for NOMMU case have been just factored out into
separate compilation unit, so don't keep dead code.
Tested-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Tested-by: NAndras Szemzo <sza@esh.hu>
Tested-by: NAlexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: NVladimir Murzin <vladimir.murzin@arm.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NChristoph Hellwig <hch@lst.de>

Now, we have dedicated non-cacheable region for consistent DMA
operations. However, that region can still be marked as bufferable by
MPU, so it'd be safer to have barriers by default. M-class machines
that didn't need it until now also likely won't need it in the future,
therefore, we offer this as an option.
Tested-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Tested-by: NAndras Szemzo <sza@esh.hu>
Tested-by: NAlexandre TORGUE <alexandre.torgue@st.com>
Reviewed-by: NRobin Murphy <robin.murphy@arm.com>
Signed-off-by: NVladimir Murzin <vladimir.murzin@arm.com>
Acked-by: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NChristoph Hellwig <hch@lst.de>

R/M classes of cpus can have memory covered by MPU which in turn might
configure RAM as Normal i.e. bufferable and cacheable. It breaks
dma_alloc_coherent() and friends, since data can stuck in caches now
or be buffered.

This patch factors out DMA support for NOMMU configuration into
separate entity which provides dedicated dma_ops. We have to handle
there several cases:
- configurations with MMU/MPU setup
- configurations without MMU/MPU setup
- special case for M-class, since caches and MPU there are optional

In general we rely on default DMA area for coherent allocations or/and
per-device memory reserves suitable for coherent DMA, so if such
regions are set coherent allocations go from there.

In case MMU/MPU was not setup we fallback to normal page allocator for
DMA memory allocation.

In case we run M-class cpus, for configuration without cache support
(like Cortex-M3/M4) dma operations are forced to be coherent and wired
with dma-noop (such decision is made based on cacheid global
variable); however, if caches are detected there and no DMA coherent
region is given (either default or per-device), dma is disallowed even
MPU is not set - it is because M-class implement system memory map
which defines part of address space as Normal memory.
Reported-by: NAlexandre Torgue <alexandre.torgue@st.com>
Reported-by: NAndras Szemzo <sza@esh.hu>
Tested-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Tested-by: NAndras Szemzo <sza@esh.hu>
Tested-by: NAlexandre TORGUE <alexandre.torgue@st.com>
Reviewed-by: NRobin Murphy <robin.murphy@arm.com>
Signed-off-by: NVladimir Murzin <vladimir.murzin@arm.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NRussell King <rmk+kernel@armlinux.org.uk>
[hch: removed the dma_supported() implementation that isn't required anymore]
Signed-off-by: NChristoph Hellwig <hch@lst.de>

The pmd containing memblock_limit is cleared by prepare_page_table()
which creates the opportunity for early_alloc() to allocate unmapped
memory if memblock_limit is not pmd aligned causing a boot-time hang.

Commit 965278dc ("ARM: 8356/1: mm: handle non-pmd-aligned end of RAM")
attempted to resolve this problem, but there is a path through the
adjust_lowmem_bounds() routine where if all memory regions start and
end on pmd-aligned addresses the memblock_limit will be set to
arm_lowmem_limit.

Since arm_lowmem_limit can be affected by the vmalloc early parameter,
the value of arm_lowmem_limit may not be pmd-aligned. This commit
corrects this oversight such that memblock_limit is always rounded
down to pmd-alignment.

Fixes: 965278dc ("ARM: 8356/1: mm: handle non-pmd-aligned end of RAM")
Signed-off-by: NDoug Berger <opendmb@gmail.com>
Suggested-by: NMark Rutland <mark.rutland@arm.com>
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>

Since the PHY used is internal, simply set phy-mode as internal.
Signed-off-by: NCorentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since the PHY used is internal, simply set phy-mode as internal.
Signed-off-by: NCorentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since the PHY used is internal, simply set phy-mode as internal.
Signed-off-by: NCorentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since the PHY used is internal, simply set phy-mode as internal.
Signed-off-by: NCorentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since the PHY used is internal, simply set phy-mode as internal.
Signed-off-by: NCorentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A wide variety of TI platforms support NAND via the
CONFIG_MTD_NAND_OMAP2 driver (and related BCH options), so enable this.
In addition, multi_v7_defconfig supports the dm8168-evm and that
supports root being on a SATA drive, so build the DM816 AHCI driver into
the resulting kernel as well.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Mihail Grigorov <michael.grigorov@konsulko.com>
Signed-off-by: NTom Rini <trini@konsulko.com>
Acked-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

The introduction of pci_scan_root_bus_bridge() provides a PCI core API to
scan a PCI root bus backed by an already initialized struct pci_host_bridge
object, which simplifies the bus scan interface and makes the PCI scan root
bus interface easier to generalize as members are added to the struct
pci_host_bridge.

Convert ARM bios32 code to pci_scan_root_bus_bridge() to improve the PCI
root bus scanning interface.
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
[bhelgaas: fold in warning fix from Arnd Bergmann <arnd@arndb.de>:
http://lkml.kernel.org/r/20170621215323.3921382-1-arnd@arndb.de]
[bhelgaas: set bridge->ops for mv78xx0]
[bhelgaas: fold in fixes from Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>:
http://lkml.kernel.org/r/20170701135457.GB8977@red-moon]
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Andrew Lunn <andrew@lunn.ch>

Same behavior, less code duplication.
Signed-off-by: NChristoph Hellwig <hch@lst.de>

And instead wire it up as method for all the dma_map_ops instances.

Note that the code seems a little fishy for dmabounce and iommu, but
for now I'd like to preserve the existing behavior 1:1.
Signed-off-by: NChristoph Hellwig <hch@lst.de>

DMA_ERROR_CODE is going to go away, so don't rely on it.
Signed-off-by: NChristoph Hellwig <hch@lst.de>

I didn't find any use of this macro in the current kernel tree (with git
grep). KTHREAD_SIZE is no longer used for a very very long time. So
let's remove this definition.
Signed-off-by: NJérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Reviewed-by: NVladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>

As of commit 5052de8d, QCOM_SMD_RPM and various other config
options enabled in the qcom_defconfig depends on the RPMSG. If
QCOM_SMD_RPM config option is not selected it disables the
REGULATOR_QCOM_SMD_RPM and other essential config options.
Signed-off-by: NBhushan Shah <bshah@kde.org>
Signed-off-by: NAndy Gross <andy.gross@linaro.org>

Bring up the two remaining CPUs by calling into PM domain code.
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Use 'clock-frequency' binding for the i2c node that will put the I2C driver
into the standard operating mode. 'speed-mode' was not a valid binding for
the I2C driver, remove it.
Signed-off-by: NAlan Tull <atull@kernel.org>
Signed-off-by: NDinh Nguyen <dinguyen@kernel.org>

Add DT alias for the second ethernet present on mainboard rev 1.10.
Signed-off-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NDinh Nguyen <dinguyen@kernel.org>

Drop the LED node from VINing FPGA DT because the LED wiring is
different on each mainboard revision. This wiring is therefore
handled in mainboard DT Overlays.
Signed-off-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NDinh Nguyen <dinguyen@kernel.org>

Remove the EEPROMs attached to the I2C expander ports which
lead to the backplane slots from the main VIN|ING DTS file.
These EEPROMs are bound using separate DTO files, which lets
us handle both two-slot and six-slot configuration of the
backplane.
Signed-off-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NDinh Nguyen <dinguyen@kernel.org>

Enable the QSPI node and add the flash chips.
Signed-off-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NDinh Nguyen <dinguyen@kernel.org>

The ethernet block clock phandle must point to the clock node which
represents the clock which directly supply the ethernet block. This
is emac_x_clk , not emacx_clk , so fix this.

From: Pavel Machek <pavel@denx.de>
Signed-off-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NDinh Nguyen <dinguyen@kernel.org>

Currently external aborts are unsupported by the guest abort
handling. Add handling for SEAs so that the host kernel reports
SEAs which occur in the guest kernel.

When an SEA occurs in the guest kernel, the guest exits and is
routed to kvm_handle_guest_abort(). Prior to this patch, a print
message of an unsupported FSC would be printed and nothing else
would happen. With this patch, the code gets routed to the APEI
handling of SEAs in the host kernel to report the SEA information.
Signed-off-by: NTyler Baicar <tbaicar@codeaurora.org>
Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
Acked-by: NMarc Zyngier <marc.zyngier@arm.com>
Acked-by: NChristoffer Dall <cdall@linaro.org>
Signed-off-by: NWill Deacon <will.deacon@arm.com>

Originally, generated-y and genhdr-y had different meaning, like
follows:

- generated-y: generated headers (other than asm-generic wrappers)
- header-y   : headers to be exported
- genhdr-y   : generated headers to be exported (generated-y + header-y)

Since commit fcc8487d ("uapi: export all headers under uapi
directories"), headers under UAPI directories are all exported.
So, there is no more difference between generated-y and genhdr-y.

We see two users of genhdr-y, arch/{arm,x86}/include/uapi/asm/Kbuild.
They generate some headers in arch/{arm,x86}/include/generated/uapi/asm
directories, which are obviously exported.

Replace them with generated-y, and abolish genhdr-y.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: NNicolas Dichtel <nicolas.dichtel@6wind.com>