Madalin Bucur says:
====================
dpaa_eth: a couple of fixes
Add cleanup on PHY initialization failure path, avoid using
uninitialized memory at CGR init.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The QBMan CGR options needs to be zeroed before calling the init
function
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
net: systemport: Fix padding vs. TSB insertion
This patch series fixes how we pad the packets submitted to the SYSTEMPORT
adapter, and how the transmit status block (prepended 8 bytes) fits in the
picture. The first patch is not technically a bug fix, but is required for the
second path to be applied and to greatly simplify the skb length calculation.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Inserting the TSB means adding an extra 8 bytes in front the of packet
that is going to be used as metadata information by the TDMA engine, but
stripped off, so it does not really help with the packet padding.
For some odd packet sizes that fall below the 60 bytes payload (e.g: ARP)
we can end-up padding them after the TSB insertion, thus making them 64
bytes, but with the TDMA stripping off the first 8 bytes, they could
still be smaller than 64 bytes which is required to ingress the switch.
Fix this by swapping the padding and TSB insertion, guaranteeing that
the packets have the right sizes.
Fixes: 80105befdb ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since we need to pad our packets, utilize skb_put_padto() which
increases skb->len by how much we need to pad, allowing us to eliminate
the test on skb->len right below.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The fsl_ssi fifo watermark is by default set to 2 free spaces (i.e.
activate DMA on FIFO when only 2 spaces are left.) This means the
DMA must service the fifo within 2 audio samples, which is just not
enough time for many use cases with high data rate. In many
configurations the audio channel slips (causing l/r swap in stereo
configurations, or channel slipping in multi-channel configurations).
This patch gives more breathing room and allows the SSI to operate
reliably by changing the fifio refill watermark to 8.
There is no change in behavior for older chips (with an 8-deep fifo).
Only the newer chips with a 15-deep fifo get the new behavior. I
suspect a new fifo depth setting could be optimized on the older
chips too, but I have not tested.
Signed-off-by: Caleb Crome <caleb@crome.org>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Fix a minor fallout from the merge of the timers and the networking
trees. The following error may result if the PTP_1588_CLOCK
prerequisites are not available:
drivers/built-in.o: In function `ptp_clock_unregister':
(.text+0x40e0a5): undefined reference to `pps_unregister_source'
drivers/built-in.o: In function `ptp_clock_unregister':
(.text+0x40e0cc): undefined reference to `posix_clock_unregister'
drivers/built-in.o: In function `ptp_clock_event':
(.text+0x40e249): undefined reference to `pps_event'
drivers/built-in.o: In function `ptp_clock_register':
(.text+0x40e5e1): undefined reference to `pps_register_source'
drivers/built-in.o: In function `ptp_clock_register':
(.text+0x40e62c): undefined reference to `posix_clock_register'
drivers/built-in.o: In function `ptp_clock_register':
(.text+0x40e68d): undefined reference to `pps_unregister_source'
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ip6_route_output() never returns NULL so
check dst->error instead of !dst.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The USB core may call reset_resume when it fails to resume asix device.
And USB core can recovery this abnormal resume at low level driver,
the same .resume at asix driver can work too. Add .reset_resume can
avoid disconnecting after backing from system resume, and NFS can
still be mounted after this commit.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
nvmem_cell_read() returns void *, not char *. This is a cleanup that got
left out of commit a6c5091250 ("nvmem: Declare nvmem_cell_read()
consistently").
Signed-off-by: Brian Norris <briannorris@chromium.org>
Fixes: a6c5091250 ("nvmem: Declare nvmem_cell_read() consistently")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
All i.MX6 SoCs have an OCOTP Controller with 4kbit fuses. The i.MX6SL is
an exception and has only 2kbit fuses.
In the TRM for the i.MX6DQ (IMX6QDRM - Rev 2, 06/2014) the fuses size is
described in chapter 46.1.1 with:
"32-bit word restricted program and read to 4Kbits of eFuse OTP(512x8)."
In the TRM for the i.MX6SL (IMX6SLRM - Rev 2, 06/2015) the fuses size is
described in chapter 34.1.1 with:
"32-bit word restricted program and read to 2 kbit of eFuse OTP(128x8)."
Since the Freescale Linux kernel OCOTP driver works with a fuses size of
2 kbit for the i.MX6SL, it looks like the TRM is wrong and the formula
to calculate the correct fuses size has to be 256x8.
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The nvmem core driver supports to read and write single
byte. So, allow qfprom to support this feature.
This change helps in extracting a required value based
on bit-offset and number of bits for the required value
in the nvmem cell.
Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The credentials handling was pushed to the write handlers
but error handling wasn't done properly.
Move write callbacks to completion queue to destroy them
and to notify a blocked writer about the failure
Fixes: 136698e535 (mei: push credentials inside the irq write handler)
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Adjust function name in KDoc.
Fixes: d49dc5e76f (mei: bus: use mei_cldev_ prefix for the API functions)
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull block layer fixes from Jens Axboe:
"A set of fixes for the current series, one fixing a regression with
block size < page cache size in the alias series from Jan. Outside of
that, two small cleanups for wbt from Bart, a nvme pull request from
Christoph, and a few small fixes of documentation updates"
* 'for-linus' of git://git.kernel.dk/linux-block:
block: fix up io_poll documentation
block: Avoid that sparse complains about context imbalance in __wbt_wait()
block: Make wbt_wait() definition consistent with declaration
clean_bdev_aliases: Prevent cleaning blocks that are not in block range
genhd: remove dead and duplicated scsi code
block: add back plugging in __blkdev_direct_IO
nvmet/fcloop: remove some logically dead code performing redundant ret checks
nvmet: fix KATO offset in Set Features
nvme/fc: simplify error handling of nvme_fc_create_hw_io_queues
nvme/fc: correct some printk information
nvme/scsi: Remove START STOP emulation
nvme/pci: Delete misleading queue-wrap comment
nvme/pci: Fix whitespace problem
nvme: simplify stripe quirk
nvme: update maintainers information
- Update gcc-common.h for gcc 7 from Emese Revfy.
- Fix latent_entropy type for early gcc on ARM from PaX Team.
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Merge tag 'gcc-plugins-v4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull gcc-plugins fixes from Kees Cook:
"Small fixes for gcc-plugins when using certain gcc versions:
- update gcc-common.h for gcc 7 (Emese Revfy)
- fix latent_entropy type for early gcc on ARM (PaX Team)"
* tag 'gcc-plugins-v4.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
gcc-plugins: update gcc-common.h for gcc-7
latent_entropy: fix ARM build error on earlier gcc
Commit c02433dd6d ("arm64: split thread_info from task stack")
inverted the relationship between get_current() and
current_thread_info(), with sp_el0 now holding the current task_struct
rather than the current thead_info. The new implementation of
get_current() prevents the compiler from being able to optimize repeated
calls to either, resulting in a noticeable penalty in some
microbenchmarks.
This patch restores the previous optimisation by implementing
get_current() in the same way as our old current_thread_info(), using a
non-volatile asm statement.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reported-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Recent changes made KERN_CONT mandatory for continued lines. In the
absence of KERN_CONT, a newline may be implicit inserted by the core
printk code.
In show_pte, we (erroneously) use printk without KERN_CONT for continued
prints, resulting in output being split across a number of lines, and
not matching the intended output, e.g.
[ff000000000000] *pgd=00000009f511b003
, *pud=00000009f4a80003
, *pmd=0000000000000000
Fix this by using pr_cont() for all the continuations.
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
1) Fix two instances of infinite loop occurring in
clock list for DA850. This fixes kernel hangs in some
instances and so have been marked for stable kernel.
2) Fix for sleeping function called from atomic context
with USB 2.0 clock management code introduced in v4.10
merge window.
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Merge tag 'davinci-fixes-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into fixes
Pull "DaVinci fixes for v4.10" from Sekhar Nori:
This pull request contains fixes for the following issues
1) Fix two instances of infinite loop occurring in
clock list for DA850. This fixes kernel hangs in some
instances and so have been marked for stable kernel.
2) Fix for sleeping function called from atomic context
with USB 2.0 clock management code introduced in v4.10
merge window.
* tag 'davinci-fixes-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: da8xx: Fix sleeping function called from invalid context
ARM: davinci: Make __clk_{enable,disable} functions public
ARM: davinci: da850: don't add emac clock to lookup table twice
ARM: davinci: da850: fix infinite loop in clk_set_rate()
- DT: GXL: fix GPIO include
- add DT and defconfig for newly merged DRM driver
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Merge tag 'amlogic-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into fixes
Pull "Amlogic fixes for v4.10" from Kevin Hilman:
- DT: GXL: fix GPIO include
- add DT and defconfig for newly merged DRM driver
This pull has one real fix, as a couple non-critical ones. The DRM
DT/defconfig patches are coming now because I didn't expect the new
driver to make it for the v4.10 merge window, but since it did[1], the
DT and defconfig should go into the same release.
[1] bbbe775ec5 drm: Add support for Amlogic Meson Graphic Controller
* tag 'amlogic-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
ARM64: defconfig: enable DRM_MESON as module
ARM64: dts: meson-gx: Add Graphic Controller nodes
ARM64: dts: meson-gxl: fix GPIO include
Two minor fixes following the merge of the PSCI checker:
- Annotate the PSCI checker timer on the stack used to wake-up from
suspend to prevent warnings when the DEBUG_OBJECTS config option
is enabled
- Extend the PSCI entry in the maintainers list to also include the
PSCI checker code
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Merge tag 'psci-fixes-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/linux into fixes
Pull "PSCI fixes for v4.10" from Lorenzo Pieralisi:
Two minor fixes following the merge of the PSCI checker:
- Annotate the PSCI checker timer on the stack used to wake-up from
suspend to prevent warnings when the DEBUG_OBJECTS config option
is enabled
- Extend the PSCI entry in the maintainers list to also include the
PSCI checker code
* tag 'psci-fixes-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/linux:
MAINTAINERS: extend PSCI entry to cover the newly add PSCI checker code
drivers: psci: annotate timer on stack to silence odebug messages
A simple fix to extend GICv2 CPU interface registers from 4K to 8K
on AEMv8 FVP/RTSM models in order to support split priority drop and
interrupt deactivation.
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Merge tag 'juno-fixes-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into fixes
Pull "ARMv8 Juno/VExpress fixes for v4.10" from Sudeep Holla:
A simple fix to extend GICv2 CPU interface registers from 4K to 8K
on AEMv8 FVP/RTSM models in order to support split priority drop and
interrupt deactivation.
* tag 'juno-fixes-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
arm64: dts: vexpress: Support GICC_DIR operations
Here, pci_iomap can fail, handle this case release selected
pci regions and return -ENOMEM.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
A simple fix to extend GICv2 CPU interface registers from 4K to 8K
on VExpress TC1 and TC2 platforms in order to support split priority
drop and interrupt deactivation.
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Merge tag 'vexpress-fixes-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into fixes
Pull "ARMv7 VExpress fixes for v4.10" from Sudeep Holla:
A simple fix to extend GICv2 CPU interface registers from 4K to 8K
on VExpress TC1 and TC2 platforms in order to support split priority
drop and interrupt deactivation.
* tag 'vexpress-fixes-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
ARM: dts: vexpress: Support GICC_DIR operations
This is just sample code. We forget to set the error codes in a couple
places.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
A simple fix for reading only lower 32-bit sensor values on pre-1.0 SCPI
firmwares so that upper 32-bit (garbage) value is discarded properly.
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Merge tag 'scpi-fixes-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into fixes
Pull "SCPI fix for v4.10" from Sudeep Holla:
A simple fix for reading only lower 32-bit sensor values on pre-1.0 SCPI
firmwares so that upper 32-bit (garbage) value is discarded properly.
* tag 'scpi-fixes-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scpi: fix reading sensor values on pre-1.0 SCPI firmwares
- A format fix for vf610-zii-dev-rev-b.dts, which has a very odd line
due to misses a newline.
- A fix to imx-weim bus error seen on board which doesn't actually use
the bus.
- A fix for imx6qdl-nitrogen6x board which has conflicting usage of
pad NANDF_CS2.
- A cleanup on i.MX1 machine to remove .map_io callback, which also
fixes a compiling error for NOMMU build.
- Fix AVIC base address in i.MX31 device tree source. The problem was
shadowed by the AVIC driver, which takes the correct base address
from a SoC specific header file.
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Merge tag 'imx-fixes-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
Pull "i.MX fixes for 4.10" from Shawn Guo:
- A format fix for vf610-zii-dev-rev-b.dts, which has a very odd line
due to misses a newline.
- A fix to imx-weim bus error seen on board which doesn't actually use
the bus.
- A fix for imx6qdl-nitrogen6x board which has conflicting usage of
pad NANDF_CS2.
- A cleanup on i.MX1 machine to remove .map_io callback, which also
fixes a compiling error for NOMMU build.
- Fix AVIC base address in i.MX31 device tree source. The problem was
shadowed by the AVIC driver, which takes the correct base address
from a SoC specific header file.
* tag 'imx-fixes-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6: Disable "weim" node in the dtsi files
ARM: i.MX: remove map_io callback
ARM: dts: vf610-zii-dev-rev-b: Add missing newline
ARM: dts: imx6qdl-nitrogen6x: remove duplicate iomux entry
ARM: dts: imx31: fix AVIC base address
to deal with various regressions noticed during the merge
window and to fix various device tree configurations for
boards. Also included is removal of mach-omap2/gpio.c that
is now dead code with device tree based booting that should
be OK for the early -rc cycle:
- A series of fixes to add empty chosen node to fix regressions
caused for bootloaders that don't create chosen node as the
decompressor needs the chosen node to merge command line and
ATAGs into it
- Fix missing logicpd-som-lv-37xx-devkit.dtb entry in Makefile
- Fix regression for am437x timers
- Fix wrong strcat for non-NULL terminated string
- A series of changes to fix tps65217 interrupts to not use
defines as we don't do that for interrupts
- Two patches to fix USB VBUS detection on am57xx-idk and force it
to peripheral mode until dwc3 role detection is working
- Add missing dra72-evm-tps65917 missing voltage supplies
accidentally left out of an earlier patch
- Fix n900 eMMC detection when booted on qemu
- Remove unwanted pr_err on failed memory allocation for
prm_common.c
- Remove legacy mach-omap2/gpio.c that now is dead code
since we boot mach-omap2 in device tree only mode
- Fix am572x-idk pcie1 by adding the missing gpio reset pin
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Merge tag 'omap-for-v4.10/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Pull "omap fixes for v4.10-rc cycle" from Tony Lindgren:
Fist set of fixes for omaps for v4.10-rc cycle, mostly
to deal with various regressions noticed during the merge
window and to fix various device tree configurations for
boards. Also included is removal of mach-omap2/gpio.c that
is now dead code with device tree based booting that should
be OK for the early -rc cycle:
- A series of fixes to add empty chosen node to fix regressions
caused for bootloaders that don't create chosen node as the
decompressor needs the chosen node to merge command line and
ATAGs into it
- Fix missing logicpd-som-lv-37xx-devkit.dtb entry in Makefile
- Fix regression for am437x timers
- Fix wrong strcat for non-NULL terminated string
- A series of changes to fix tps65217 interrupts to not use
defines as we don't do that for interrupts
- Two patches to fix USB VBUS detection on am57xx-idk and force it
to peripheral mode until dwc3 role detection is working
- Add missing dra72-evm-tps65917 missing voltage supplies
accidentally left out of an earlier patch
- Fix n900 eMMC detection when booted on qemu
- Remove unwanted pr_err on failed memory allocation for
prm_common.c
- Remove legacy mach-omap2/gpio.c that now is dead code
since we boot mach-omap2 in device tree only mode
- Fix am572x-idk pcie1 by adding the missing gpio reset pin
* tag 'omap-for-v4.10/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (23 commits)
ARM: dts: am572x-idk: Add gpios property to control PCIE_RESETn
ARM: OMAP2+: PRM: Delete an error message for a failed memory allocation
ARM: dts: n900: Mark eMMC slot with no-sdio and no-sd flags
ARM: dts: dra72-evm-tps65917: Add voltage supplies to usb_phy, mmc, dss
ARM: dts: am57xx-idk: Put USB2 port in peripheral mode
ARM: dts: am57xx-idk: Support VBUS detection on USB2 port
dt-bindings: input: Specify the interrupt number of TPS65217 power button
dt-bindings: power/supply: Update TPS65217 properties
dt-bindings: mfd: Remove TPS65217 interrupts
ARM: dts: am335x: Fix the interrupt name of TPS65217
ARM: omap2+: fixing wrong strcat for Non-NULL terminated string
ARM: omap2+: am437x: rollback to use omap3_gptimer_timer_init()
ARM: dts: omap3: Add DTS for Logic PD SOM-LV 37xx Dev Kit
ARM: dts: dra7: Add an empty chosen node to top level DTSI
ARM: dts: dm816x: Add an empty chosen node to top level DTSI
ARM: dts: dm814x: Add an empty chosen node to top level DTSI
ARM: dts: am4372: Add an empty chosen node to top level DTSI
ARM: dts: am33xx: Add an empty chosen node to top level DTSI
ARM: dts: omap5: Add an empty chosen node to top level DTSI
ARM: dts: omap4: Add an empty chosen node to top level DTSI
...
1. Minor cleanup in smp_operations.
2. Another step in switching s3c24xx to new DMA API.
3. Drop fixed requirement for HZ=200 on Samsung platforms.
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Merge tag 'samsung-soc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into fixes
Samsung mach/soc update for v4.10:
1. Minor cleanup in smp_operations.
2. Another step in switching s3c24xx to new DMA API.
3. Drop fixed requirement for HZ=200 on Samsung platforms.
* tag 'samsung-soc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: Drop fixed 200 Hz timer requirement from Samsung platforms
ARM: S3C24XX: Add DMA slave maps for remaining s3c24xx SoCs
ARM: EXYNOS: Remove smp_init_cpus hook from platsmp.c
* Provide sd0_uhs node
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Merge tag 'renesas-fixes-for-v4.10' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
Renesas ARM Based SoC Fixes for v4.10
* Provide sd0_uhs node
* tag 'renesas-fixes-for-v4.10' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
arm64: dts: h3ulcb: Provide sd0_uhs node
The generic command buffer entry is 128 bits (16 bytes), so the offset
of tail and head pointer should be 16 bytes aligned and increased with
0x10 per command.
When cmd buf is full, head = (tail + 0x10) % CMD_BUFFER_SIZE.
So when left space of cmd buf should be able to store only two
command, we should be issued one COMPLETE_WAIT additionally to wait
all older commands completed. Then the left space should be increased
after IOMMU fetching from cmd buf.
So left check value should be left <= 0x20 (two commands).
Signed-off-by: Huang Rui <ray.huang@amd.com>
Fixes: ac0ea6e92b ('x86/amd-iommu: Improve handling of full command buffer')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Different encodings are used to represent supported PASID bits
and number of PASID table entries.
The current code assigns ecap_pss directly to extended context
table entry PTS which is wrong and could result in writing
non-zero bits to the reserved fields. IOMMU fault reason
11 will be reported when reserved bits are nonzero.
This patch converts ecap_pss to extend context entry pts encoding
based on VT-d spec. Chapter 9.4 as follows:
- number of PASID bits = ecap_pss + 1
- number of PASID table entries = 2^(pts + 5)
Software assigned limit of pasid_max value is also respected to
match the allocation limitation of PASID table.
cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Tested-by: Mika Kuoppala <mika.kuoppala@intel.com>
Fixes: 2f26e0a9c9 ('iommu/vt-d: Add basic SVM PASID support')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
We met the DMAR fault both on hpsa P420i and P421 SmartArray controllers
under kdump, it can be steadily reproduced on several different machines,
the dmesg log is like:
HP HPSA Driver (v 3.4.16-0)
hpsa 0000:02:00.0: using doorbell to reset controller
hpsa 0000:02:00.0: board ready after hard reset.
hpsa 0000:02:00.0: Waiting for controller to respond to no-op
DMAR: Setting identity map for device 0000:02:00.0 [0xe8000 - 0xe8fff]
DMAR: Setting identity map for device 0000:02:00.0 [0xf4000 - 0xf4fff]
DMAR: Setting identity map for device 0000:02:00.0 [0xbdf6e000 - 0xbdf6efff]
DMAR: Setting identity map for device 0000:02:00.0 [0xbdf6f000 - 0xbdf7efff]
DMAR: Setting identity map for device 0000:02:00.0 [0xbdf7f000 - 0xbdf82fff]
DMAR: Setting identity map for device 0000:02:00.0 [0xbdf83000 - 0xbdf84fff]
DMAR: DRHD: handling fault status reg 2
DMAR: [DMA Read] Request device [02:00.0] fault addr fffff000 [fault reason 06] PTE Read access is not set
hpsa 0000:02:00.0: controller message 03:00 timed out
hpsa 0000:02:00.0: no-op failed; re-trying
After some debugging, we found that the fault addr is from DMA initiated at
the driver probe stage after reset(not in-flight DMA), and the corresponding
pte entry value is correct, the fault is likely due to the old iommu caches
of the in-flight DMA before it.
Thus we need to flush the old cache after context mapping is setup for the
device, where the device is supposed to finish reset at its driver probe
stage and no in-flight DMA exists hereafter.
I'm not sure if the hardware is responsible for invalidating all the related
caches allocated in the iommu hardware before, but seems not the case for hpsa,
actually many device drivers have problems in properly resetting the hardware.
Anyway flushing (again) by software in kdump kernel when the device gets context
mapped which is a quite infrequent operation does little harm.
With this patch, the problematic machine can survive the kdump tests.
CC: Myron Stowe <myron.stowe@gmail.com>
CC: Joseph Szczypek <jszczype@redhat.com>
CC: Don Brace <don.brace@microsemi.com>
CC: Baoquan He <bhe@redhat.com>
CC: Dave Young <dyoung@redhat.com>
Fixes: 091d42e43d ("iommu/vt-d: Copy translation tables from old kernel")
Fixes: dbcd861f25 ("iommu/vt-d: Do not re-use domain-ids from the old kernel")
Fixes: cf484d0e69 ("iommu/vt-d: Mark copied context entries")
Signed-off-by: Xunlei Pang <xlpang@redhat.com>
Tested-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Here, If devm_ioremap will fail. It will return NULL.
Kernel can run into a NULL-pointer dereference.
This error check will avoid NULL pointer dereference.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Yoichi Yuasa <yuasa@linux-mips.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
I would like to help with fbdev maintenance. I can dedicate some time
for reviewing and handling patches but won't have time for much more.
The subsystem will remain in maintenance mode (no new drivers will be
added to it).
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
This commit fixes the VDAC disabling register write values.
Fixes: bbbe775ec5 ("drm: Add support for Amlogic Meson Graphic Controller")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
When the HDMI output is configured by the bootloader, there is mismatch is the
pipeline configuration and the Vsync interrupt fails to trigger.
This commit disables the HDMI blocks in the probe phase.
Fixes: bbbe775ec5 ("drm: Add support for Amlogic Meson Graphic Controller")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
ASUS ROG Ranger VIII with ALC1150 codec requires the extra GPIO pin to
up for the front panel. Just use the existing fixup for setting up
the GPIO pins.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=189411
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Fix NULL-pointer dereference in open() should the device lack the
expected endpoints:
Unable to handle kernel NULL pointer dereference at virtual address 00000030
...
PC is at spcp8x5_open+0x30/0xd0 [spcp8x5]
Fixes: 619a6f1d14 ("USB: add usb-serial spcp8x5 driver")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
The write URB was being killed using the synchronous interface while
holding a spin lock in close().
Simply drop the lock and busy-flag update, something which would have
been taken care of by the completion handler if the URB was in flight.
Fixes: f7a33e608d ("USB: serial: add quatech2 usb to serial driver")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Fix NULL-pointer dereference in open() should a type-0 or type-1 device
lack the expected endpoints:
Unable to handle kernel NULL pointer dereference at virtual address 00000030
...
PC is at pl2303_open+0x38/0xec [pl2303]
Note that a missing interrupt-in endpoint would have caused open() to
fail.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Fix NULL-pointer dereference in open() should the device lack the
expected endpoints:
Unable to handle kernel NULL pointer dereference at virtual address 00000030
...
PC is at oti6858_open+0x30/0x1d0 [oti6858]
Note that a missing interrupt-in endpoint would have caused open() to
fail.
Fixes: 49cdee0ed0 ("USB: oti6858 usb-serial driver (in Nokia CA-42
cable)")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
David S. Miller