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Instead of only placing one skb on the guest rx ring at a time, process
a batch of up-to 64. This improves performance by ~10% in some tests.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
[re-based]
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When an skb is removed from the guest rx queue, immediately wake the
tx queue, instead of after processing them.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
[re-based]
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Refactor the to-guest (rx) path to:
1. Push responses for completed skbs earlier, reducing latency.
2. Reduce the per-queue memory overhead by greatly reducing the
maximum number of grant copy ops in each hypercall (from 4352 to
64). Each struct xenvif_queue is now only 44 kB instead of 220 kB.
3. Make the code more maintainable.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
[re-based]
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As far as I am aware only very old Windows network frontends make use of
this style of passing GSO packets from backend to frontend. These
frontends can easily be replaced by the freely available Xen Project
Windows PV network frontend, which uses the 'default' mechanism for
passing GSO packets, which is also used by all Linux frontends.
NOTE: Removal of this feature will not cause breakage in old Windows
frontends. They simply will no longer receive GSO packets - the
packets instead being fragmented in the backend.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The netback source module has become very large and somewhat confusing.
This patch simply moves all code related to the backend to frontend (i.e
guest side rx) data-path into a separate rx source module.
This patch contains no functional change, it is code movement and
minimal changes to avoid patch style-check issues.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jussi Brar:
"New driver and DT bindings for MHU controller integrated on Amlogic
Meson platform"
* 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
dt-bindings: mailbox: Add Amlogic Meson MHU Bindings
mailbox: Add Platform Message-Handling-Unit variant driver
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Madalin Bucur says:
====================
fsl/fman: cleanup and small fixes
This series contains fixes for the DPAA FMan driver.
Adding myself as maintainer of the driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull dmaengine updates from Vinod Koul:
"This is bit large pile of code which bring in some nice additions:
- Error reporting: we have added a new mechanism for users of
dmaenegine to register a callback_result which tells them the
result of the dma transaction. Right now only one user (ntb) is
using it.
- As we discussed on KS mailing list and pointed out NO_IRQ has no
place in kernel, this also remove NO_IRQ from dmaengine subsystem
(both arm and ppc users)
- Support for IOMMU slave transfers and its implementation for arm.
- To get better build coverage, enable COMPILE_TEST for bunch of
driver, and fix the warning and sparse complaints on these.
- Apart from above, usual updates spread across drivers"
* tag 'dmaengine-4.9-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (169 commits)
async_pq_val: fix DMA memory leak
dmaengine: virt-dma: move function declarations
dmaengine: omap-dma: Enable burst and data pack for SG
DT: dmaengine: rcar-dmac: document R8A7743/5 support
dmaengine: fsldma: Unmap region obtained by of_iomap
dmaengine: jz4780: fix resource leaks on error exit return
dma-debug: fix ia64 build, use PHYS_PFN
dmaengine: coh901318: fix integer overflow when shifting more than 32 places
dmaengine: edma: avoid uninitialized variable use
dma-mapping: fix m32r build warning
dma-mapping: fix ia64 build, use PHYS_PFN
dmaengine: ti-dma-crossbar: enable COMPILE_TEST
dmaengine: omap-dma: enable COMPILE_TEST
dmaengine: edma: enable COMPILE_TEST
dmaengine: ti-dma-crossbar: Fix of_device_id data parameter usage
dmaengine: ti-dma-crossbar: Correct type for of_find_property() third parameter
dmaengine/ARM: omap-dma: Fix the DMAengine compile test on non OMAP configs
dmaengine: edma: Rename set_bits and remove unused clear_bits helper
dmaengine: edma: Use correct type for of_find_property() third parameter
dmaengine: edma: Fix of_device_id data parameter usage (legacy vs TPCC)
...
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Pull rpmsg updates from Bjorn Andersson:
"The bulk of these patches involve splitting the rpmsg implementation
into a framework/API part and a virtio specific backend part. It then
adds the Qualcomm Shared Memory Device (SMD) as an additional
supported wire format.
Also included is a set of code style cleanups that have been lingering
for a while"
* tag 'rpmsg-v4.9' of git://github.com/andersson/remoteproc: (26 commits)
rpmsg: smd: fix dependency on QCOM_SMD=n
rpmsg: Introduce Qualcomm SMD backend
rpmsg: Allow callback to return errors
rpmsg: Move virtio specifics from public header
rpmsg: virtio: Hide vrp pointer from the public API
rpmsg: Hide rpmsg indirection tables
rpmsg: Split rpmsg core and virtio backend
rpmsg: Split off generic tail of create_channel()
rpmsg: Move helper for finding rpmsg devices to core
rpmsg: Move endpoint related interface to rpmsg core
rpmsg: Indirection table for rpmsg_endpoint operations
rpmsg: Move rpmsg_device API to new file
rpmsg: Introduce indirection table for rpmsg_device operations
rpmsg: Clean up rpmsg device vs channel naming
rpmsg: Make rpmsg_create_ept() take channel_info struct
rpmsg: rpmsg_send() operations takes rpmsg_endpoint
rpmsg: Name rpmsg devices based on channel id
rpmsg: Enable matching devices with drivers based on DT
rpmsg: Drop prototypes for non-existing functions
samples/rpmsg: add support for multiple instances
...
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Pull remoteproc updates from Bjorn Andersson:
"In addition to a slew of minor fixes and cleanups these patches
refactor how we deal with remoteprocs that will be auto-booting
themselves.
That does clean up the remote resource handling but makes for
additional work to clarify responsibilities and life cycles of
resources. We also revise how module locking of remoteproc drivers
work, so that they are locked as we hand out references to them to
third parties, rather than only when booted by anyone.
In addition to that we also introduce the Qualcomm Wireless Subsystem
remoteproc driver"
* tag 'rproc-v4.9' of git://github.com/andersson/remoteproc: (26 commits)
remoteproc: Refactor rproc module locking
remoteproc: Split driver and consumer dereferencing
remoteproc: Correct resource handling upon boot failure
remoteproc: Drop unnecessary NULL check
remoteproc: core: transform struct fw_rsc_vdev_vring reserved field in pa
remoteproc: Modify FW_RSC_ADDR_ANY definition
remoteproc: qcom: wcnss: Fix return value check in wcnss_probe()
remoteproc: qcom: Introduce WCNSS peripheral image loader
dt-binding: remoteproc: Introduce Qualcomm WCNSS loader binding
remoteproc: Only update table_ptr if we have a loaded table
remoteproc: Move handling of cached table to boot/shutdown
remoteproc: Move vdev handling to boot/shutdown
remoteproc: Calculate max_notifyid during load
remoteproc: Introduce auto-boot flag
remoteproc/omap: revise a minor error trace message
remoteproc/omap: fix various code formatting issues
remoteproc: print hex numbers with a leading 0x format
remoteproc: align code with open parenthesis
remoteproc: fix bare unsigned type usage
remoteproc: use variable names for sizeof() operator
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull pstore updates from Kees Cook:
- Fix bug in module unloading
- Switch to always using spinlock over cmpxchg
- Explicitly define pstore backend's supported modes
- Remove bounce buffer from pmsg
- Switch to using memcpy_to/fromio()
- Error checking improvements
* tag 'pstore-v4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
ramoops: move spin_lock_init after kmalloc error checking
pstore/ram: Use memcpy_fromio() to save old buffer
pstore/ram: Use memcpy_toio instead of memcpy
pstore/pmsg: drop bounce buffer
pstore/ram: Set pstore flags dynamically
pstore: Split pstore fragile flags
pstore/core: drop cmpxchg based updates
pstore/ramoops: fixup driver removal
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Now that we have infoframes to report the pixel repeat flag, we can
start using it. Fixes locking the 720x480i and 720x576i modes on my
Dell 2408WFP. Like the 1920x1080i case, they don't fit properly on
the screen, though.
Signed-off-by: Eric Anholt <eric@anholt.net>
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Fixes a purple bar on the left side of the screen with my Dell
2408WFP. It will also be required for supporting the double-clocked
video modes.
Signed-off-by: Eric Anholt <eric@anholt.net>
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We really do need to be using the halved V fields. I had been
confused by the code I was using as a reference because it stored
halved vsync fields but not halved vdisplay, so it looked like I only
needed to divide vdisplay by 2.
This reverts part of Mario's timestamping fixes that prevented
CRTC_HALVE_V from applying, and instead adjusts the timestamping code
to not use the crtc field in that case.
Fixes locking of 1920x1080x60i on my Dell 2408WFP. There are black
bars on the top and bottom, but I suspect that might be an
under/overscan flags problem as opposed to video timings.
Signed-off-by: Eric Anholt <eric@anholt.net>
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Fixes occasional debug spew at boot when connected directly through
HDMI, and probably confusing the HDMI state machine when we go trying
to poke registers for the enable sequence too soon.
Signed-off-by: Eric Anholt <eric@anholt.net>
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On Pi0/1/2, we use an external GPIO line for hotplug detection, since
the HDMI_HOTPLUG register isn't connected to anything. However, with
the Pi3 the HPD GPIO line has moved off to a GPIO expander that will
be tricky to get to (the firmware is constantly polling the expander
using i2c0, so we'll need to coordinate with it).
As a stop-gap, if we don't have a GPIO line, use an EDID probe to
detect connection. Fixes HDMI display on the pi3.
Signed-off-by: Eric Anholt <eric@anholt.net>
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Fixes broken grayscale ramps on many HDMI monitors, where large areas
at the ends of the ramp would all appear as black or white.
Signed-off-by: Eric Anholt <eric@anholt.net>
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With the introduction of bin/render pipelining, the previous job may
not be completed when we start binning the next one. If the previous
job wrote our VBO, IB, or CS textures, then the binning stage might
get stale or uninitialized results.
Fixes the major rendering failure in glmark2 -b terrain.
Signed-off-by: Eric Anholt <eric@anholt.net>
Fixes: ca26d28bbaa3 ("drm/vc4: improve throughput by pipelining binning and rendering jobs")
Cc: stable@vger.kernel.org
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The combo of list_empty() check and return list_first_entry()
can be replaced with list_first_entry_or_null().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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Rename dw_pcie_valid_config() to dw_pcie_valid_device() and use the result
directly as a boolean value instead of testing against 0. No functional
change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from David Vrabel:
"xen features and fixes for 4.9:
- switch to new CPU hotplug mechanism
- support driver_override in pciback
- require vector callback for HVM guests (the alternate mechanism via
the platform device has been broken for ages)"
* tag 'for-linus-4.9-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/x86: Update topology map for PV VCPUs
xen/x86: Initialize per_cpu(xen_vcpu, 0) a little earlier
xen/pciback: support driver_override
xen/pciback: avoid multiple entries in slot list
xen/pciback: simplify pcistub device handling
xen: Remove event channel notification through Xen PCI platform device
xen/events: Convert to hotplug state machine
xen/x86: Convert to hotplug state machine
x86/xen: add missing \n at end of printk warning message
xen/grant-table: Use kmalloc_array() in arch_gnttab_valloc()
xen: Make VPMU init message look less scary
xen: rename xen_pmu_init() in sys-hypervisor.c
hotplug: Prevent alloc/free of irq descriptors during cpu up/down (again)
xen/x86: Move irq allocation from Xen smp_op.cpu_up()
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1. Debugging qp state transitions and qp errors in loopback and
multiple QP tests is difficult without qp numbers in debug logs.
This patch adds qp number to important debug logs.
2. Instead of having rxe: prefix in few logs and not having in
few logs, using uniform module name prefix using pr_fmt macro.
3. Code cleanup for various warnings reported by checkpatch for
incomplete unsigned data type, line over 80 characters, return
statements.
Signed-off-by: Parav Pandit <pandit.parav@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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There is a problem when CONFIG_RDMA_RXE=y and CONFIG_IPV6=y. This
results in the rdma_rxe initialization occurring before the IPv6
services are ready. This patch delays the initialization of rdma_rxe
until after the IPv6 services are ready. This fix is based on one
proposed by Logan Gunthorpe on a much older code base.
Signed-off-by: Stephen Bates <sbates@raithlin.com>
Reviewed-by: Yonatan Cohen <yonatanc@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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This patch honoris the max incoming read request count instead of
outgoing read req count
(a) during modify qp by allocating response queue metadata
(b) during incoming read request processing
Signed-off-by: Parav Pandit <pandit.parav@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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This patch fixes below kernel crash on memory registration for rxe
and other transport drivers which has dma_ops extension.
IB/core invokes ib_map_sg_attrs() in generic manner with dma attributes
which is used by mlx5 and mthca adapters. However in doing so it
ignored honoring dma_ops extension of software based transports for
sg map/unmap operation. This results in calling dma_map_sg_attrs of
hardware virtual device resulting in crash for null reference.
We extend the core to support sg_map/unmap_attrs and transport drivers
to implement those dma_ops callback functions.
Verified usign perftest applications.
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffff81032a75>] check_addr+0x35/0x60
...
Call Trace:
[<ffffffff81032b39>] ? nommu_map_sg+0x99/0xd0
[<ffffffffa02b31c6>] ib_umem_get+0x3d6/0x470 [ib_core]
[<ffffffffa01cc329>] rxe_mem_init_user+0x49/0x270 [rdma_rxe]
[<ffffffffa01c793a>] ? rxe_add_index+0xca/0x100 [rdma_rxe]
[<ffffffffa01c995f>] rxe_reg_user_mr+0x9f/0x130 [rdma_rxe]
[<ffffffffa00419fe>] ib_uverbs_reg_mr+0x14e/0x2c0 [ib_uverbs]
[<ffffffffa003d3ab>] ib_uverbs_write+0x15b/0x3b0 [ib_uverbs]
[<ffffffff811e92a6>] ? mem_cgroup_commit_charge+0x76/0xe0
[<ffffffff811af0a9>] ? page_add_new_anon_rmap+0x89/0xc0
[<ffffffff8117e6c9>] ? lru_cache_add_active_or_unevictable+0x39/0xc0
[<ffffffff811f0da8>] __vfs_write+0x28/0x120
[<ffffffff811f1239>] ? rw_verify_area+0x49/0xb0
[<ffffffff811f1492>] vfs_write+0xb2/0x1b0
[<ffffffff811f27d6>] SyS_write+0x46/0xa0
[<ffffffff814f7d32>] entry_SYSCALL_64_fastpath+0x1a/0xa4
Signed-off-by: Parav Pandit <pandit.parav@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Both prepare4 and prepare6 sets loopback mask in pkt_info structure
instance of skb. The xmit_packet and other requester side functions
use a pkt_info struct from the stack without the proper mask. This
results in sending out the packet to the actual netdev device and
loopback functionality is broken.
Modify prepare() to pass its correctly marked pkt_info struct to
prepare4() and prepare6() instead of them using SKB_TO_PKT(skb) and
getting an incorrectly set mask.
Verified with perftest applications.
Signed-off-by: Parav Pandit <pandit.parav@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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This patch avoids scheduing tasklet for WQE and protocol processing
for user space QP. It performs the task in calling process context.
To improve code readability kernel specific post_send handling moved to
post_send_kernel() function.
Signed-off-by: Parav Pandit <pandit.parav@gmail.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Pull KVM updates from Radim Krčmář:
"All architectures:
- move `make kvmconfig` stubs from x86
- use 64 bits for debugfs stats
ARM:
- Important fixes for not using an in-kernel irqchip
- handle SError exceptions and present them to guests if appropriate
- proxying of GICV access at EL2 if guest mappings are unsafe
- GICv3 on AArch32 on ARMv8
- preparations for GICv3 save/restore, including ABI docs
- cleanups and a bit of optimizations
MIPS:
- A couple of fixes in preparation for supporting MIPS EVA host
kernels
- MIPS SMP host & TLB invalidation fixes
PPC:
- Fix the bug which caused guests to falsely report lockups
- other minor fixes
- a small optimization
s390:
- Lazy enablement of runtime instrumentation
- up to 255 CPUs for nested guests
- rework of machine check deliver
- cleanups and fixes
x86:
- IOMMU part of AMD's AVIC for vmexit-less interrupt delivery
- Hyper-V TSC page
- per-vcpu tsc_offset in debugfs
- accelerated INS/OUTS in nVMX
- cleanups and fixes"
* tag 'kvm-4.9-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (140 commits)
KVM: MIPS: Drop dubious EntryHi optimisation
KVM: MIPS: Invalidate TLB by regenerating ASIDs
KVM: MIPS: Split kernel/user ASID regeneration
KVM: MIPS: Drop other CPU ASIDs on guest MMU changes
KVM: arm/arm64: vgic: Don't flush/sync without a working vgic
KVM: arm64: Require in-kernel irqchip for PMU support
KVM: PPC: Book3s PR: Allow access to unprivileged MMCR2 register
KVM: PPC: Book3S PR: Support 64kB page size on POWER8E and POWER8NVL
KVM: PPC: Book3S: Remove duplicate setting of the B field in tlbie
KVM: PPC: BookE: Fix a sanity check
KVM: PPC: Book3S HV: Take out virtual core piggybacking code
KVM: PPC: Book3S: Treat VTB as a per-subcore register, not per-thread
ARM: gic-v3: Work around definition of gic_write_bpr1
KVM: nVMX: Fix the NMI IDT-vectoring handling
KVM: VMX: Enable MSR-BASED TPR shadow even if APICv is inactive
KVM: nVMX: Fix reload apic access page warning
kvmconfig: add virtio-gpu to config fragment
config: move x86 kvm_guest.config to a common location
arm64: KVM: Remove duplicating init code for setting VMID
ARM: KVM: Support vgic-v3
...
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This reverts commit 1dcd32fb9c54334ec948a0f18174a748d6b14364.
The block size is indeed an equal match, so this can cause performance regressions.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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If this happens (and it recently did), we free a structure while part of
it is still in use, which results in non-obvious crashes. The way it's
detached is not trivial (DRM core has to call the connector .destroy
callback and things must be torn down in the right order), so better
detect it and warn early.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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All other amdgpu/dce_v* files have this call, it's only mysteriously
missing from dce_v11_0.c since the file was added and causes leaks.
Fixes: aaa36a976bbb ("drm/amdgpu: Add initial VI support")
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Successful sw_init() and hw_init() states are tracked, but not
late_init(). Various error paths may result in amdgpu_fini() being
called before .late init is done, so late_init needs to be tracked
to avoid unexpected or multiple .late_fini() calls.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Since commit 44a7185c2ae6 ("of/platform: Add common method to populate
default bus") platforms calling of_platform_bus_probe from an initcall
is either a rather unsafe race with of_platform_default_populate_init or
a no-op. The MIPS Malta board needs to probe devices under an ISA bus,
which we do support in the of_busses array but until now haven't
included in of_default_bus_match_table.
Add an "isa" entry to of_default_bus_match_table such that we can just
accept use of of_platform_default_populate_init & remove the
Malta-specific match table in a later patch.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14275/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The i8259A_irq_pending function is unused. Remove the dead code.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14271/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The default i8259 polling function (i8259_irq) is nicely generic but is
fairly costly. Platforms often provide an alternative means of polling
for an i8259 interrupt, and when using the i8259 without device tree
have typically just chained its parent interrupt to their own handler
function. In order to allow for platform-specific polling functions to
be used in cases where the driver is probed via device tree, provide an
i8259_set_poll function that accepts a pointer to an alternative poll
function that will override the default.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14270/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Mapping the parent IRQ will use a virq number which may conflict with
the hardcoded I8259A_IRQ_BASE..I8259A_IRQ_BASE+15 range that the i8259
driver expects to be free. If this occurs then we'll hit errors when
adding the i8259 IRQ domain, since one of its virq numbers will already
be in use.
Avoid this by adding the i8259 domain before mapping the parent IRQ,
such that the i8259 virq numbers become used before the parent interrupt
controller gets a chance to use any of them.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14269/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Pull networking fixups from David Miller:
"Here are the build and merge fixups for the networking stuff"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
phy: micrel.c: Enable ksz9031 energy-detect power-down mode
netfilter: merge fixup for "nf_tables_netdev: remove redundant ip_hdr assignment"
netfilter: nft_limit: fix divided by zero panic
netfilter: fix namespace handling in nf_log_proc_dostring
netfilter: xt_hashlimit: Fix link error in 32bit arch because of 64bit division
netfilter: accommodate different kconfig in nf_set_hooks_head
netfilter: Fix potential null pointer dereference
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Add a driver for simple ASCII LCD displays found on the MIPS Boston,
Malta & SEAD3 development boards. The Boston display is an independent
memory mapped device with a simple memory mapped 8 byte register space
containing the 8 ASCII characters to display. The Malta display is
exposed as part of the Malta board registers, and provides 8 registers
each of which corresponds to one of the ASCII characters to display. The
SEAD3 display is slightly more complex, exposing an interface to an
S6A0069 LCD controller via registers provided by the boards CPLD.
However although the displays differ in their register interface, we
require similar functionality on each board so abstracting away the
differences within a single driver allows us to share a significant
amount of code & ensure consistent behaviour.
The driver displays the Linux kernel version as the default message, but
allows the message to be changed via a character device. Messages longer
then the number of characters that the display can show will scroll.
This provides different behaviour to the existing LCD display code for
the MIPS Malta or MIPS SEAD3 platforms in the following ways:
- The default string to display is not "LINUX ON MALTA" or "LINUX ON
SEAD3" but "Linux" followed by the version number of the kernel
(UTS_RELEASE).
- Since that string tends to be significantly longer it scrolls twice
as fast, moving every 500ms rather than every 1s.
- The LCD won't be updated until the driver is probed, so it doesn't
provide the early "LINUX" string.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14062/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Pull ARM updates from Russell King:
- Correct ARMs dma-mapping to use the correct printk format strings.
- Avoid defining OBJCOPYFLAGS globally which upsets lkdtm rodata
testing.
- Cleanups to ARMs asm/memory.h include.
- L2 cache cleanups.
- Allow flat nommu binaries to be executed on ARM MMU systems.
- Kernel hardening - add more read-only after init annotations,
including making some kernel vdso variables const.
- Ensure AMBA primecell clocks are appropriately defaulted.
- ARM breakpoint cleanup.
- Various StrongARM 11x0 and companion chip (SA1111) updates to bring
this legacy platform to use more modern APIs for (eg) GPIOs and
interrupts, which will allow us in the future to reduce some of the
board-level driver clutter and elimate function callbacks into board
code via platform data. There still appears to be interest in these
platforms!
- Remove the now redundant secure_flush_area() API.
- Module PLT relocation optimisations. Ard says: This series of 4
patches optimizes the ARM PLT generation code that is invoked at
module load time, to get rid of the O(n^2) algorithm that results in
pathological load times of 10 seconds or more for large modules on
certain STB platforms.
- ARMv7M cache maintanence support.
- L2 cache PMU support
* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (35 commits)
ARM: sa1111: provide to_sa1111_device() macro
ARM: sa1111: add sa1111_get_irq()
ARM: sa1111: clean up duplication in IRQ chip implementation
ARM: sa1111: implement a gpio_chip for SA1111 GPIOs
ARM: sa1111: move irq cleanup to separate function
ARM: sa1111: use devm_clk_get()
ARM: sa1111: use devm_kzalloc()
ARM: sa1111: ensure we only touch RAB bus type devices when removing
ARM: 8611/1: l2x0: add PMU support
ARM: 8610/1: V7M: Add dsb before jumping in handler mode
ARM: 8609/1: V7M: Add support for the Cortex-M7 processor
ARM: 8608/1: V7M: Indirect proc_info construction for V7M CPUs
ARM: 8607/1: V7M: Wire up caches for V7M processors with cache support.
ARM: 8606/1: V7M: introduce cache operations
ARM: 8605/1: V7M: fix notrace variant of save_and_disable_irqs
ARM: 8604/1: V7M: Add support for reading the CTR with read_cpuid_cachetype()
ARM: 8603/1: V7M: Add addresses for mem-mapped V7M cache operations
ARM: 8602/1: factor out CSSELR/CCSIDR operations that use cp15 directly
ARM: kernel: avoid brute force search on PLT generation
ARM: kernel: sort relocation sections before allocating PLTs
...
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The SEAD3 board no longer uses the cobalt_lcdfb driver, so remove the
SEAD3-specific code from it.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Ondrej Zary <linux@rainbow-software.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Simon Horman <horms+renesas@verge.net.au>
Cc: linux-mips@linux-mips.org
Cc: linux-fbdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14060/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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btusb_set_bdaddr_marvell() configures BD address for Marvell chipsets.
This patch adds new chipset 8997 in the list so that BD address feature
would be available for it.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Some backlight GPIOs might be connected to some i2c based expanders whose
access might sleep.
Since it's not in any critical path, use the cansleep variant of the GPIO
API.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The field "owner" is set by the core.
Thus delete an unneeded initialisation.
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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In preparation for allowing multiple namespace per pmem region, unify
blk and pmem label scanning. Given that blk regions already support
multiple namespaces, teaching that path how to do pmem namespace
scanning is an incremental step towards multiple pmem namespace support.
This should be functionally equivalent to the previous state in that
stops after finding the first valid pmem label set.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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The ability to translate a generic struct device pointer into a
namespace uuid is a useful utility as we go to unify the blk and pmem
label scanning paths.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Set bit 0 in register 1C.23 to enable the EDPD feature of the
KSZ9031 PHY. This reduces power consumption when the link is
down.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
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more victims of indirect include chains - au1200fb
lasat/picvue_proc and watchdog/ath79_wdt
... as well as tb0219, spotted by Sudip Mukherjee
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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... and kill the ->splice_read() instances that can be switched to it
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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