This patch enables SPI DMA transfers for Atmel SAM9 SoCs and implements a
bounce buffer for transfers which have vmalloc allocated buffers. Those
buffers are not cache coherent even if they have been transformed into sg
lists. UBIFS is affected by this cache coherency issue.
In this patch I also reverted "spi: atmel: fix corrupted data issue on SAM9
family SoCs"(7094576ccd).
Signed-off-by: Radu Pirea <radu.pirea@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This driver creates a number of const structures that it stores in the
data field of an of_device_id array.
The data field of an of_device_id structure has type const void *, so
there is no need for a const-discarding cast when putting const values
into such a structure.
Furthermore, adding const to the declaration of the location that
receives a const value from such a field ensures that the compiler
will continue to check that the value is not modified. The
const-discarding cast on the extraction from the data field is
thus no longer needed.
Done using Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
It always returns 0 and none of its callers check its return value. Make
it return void.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
On POWER8 and POWER9, the PMSR and the PMCR registers define pstates
to be 8-bit wide values. The device-tree exports pstates as 32-bit
wide values of which the lower byte is the actual pstate.
The current implementation in the kernel treats pstates as integer
type, since it used to use the sign of the pstate for performing some
boundary-checks. This is no longer required after the patch
"powernv-cpufreq: Fix pstate_to_idx() to handle non-continguous
pstates".
So, in this patch, we modify the powernv-cpufreq driver to uniformly
treat pstates as opaque 8-bit values obtained from the device-tree or
the PMCR. This simplifies the extract_pstate() helper function since
we no longer no longer require to worry about the sign-extentions.
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The code in powernv-cpufreq, makes the following two assumptions which
are not guaranteed by the device-tree bindings:
1) Pstate ids are continguous: This is used in pstate_to_idx() to
obtain the reverse map from a pstate to it's corresponding
entry into the cpufreq frequency table.
2) Every Pstate should always lie between the max and the min
pstates that are explicitly reported in the device tree: This
is used to determine whether a pstate reported by the PMSR is
out of bounds.
Both these assumptions are unwarranted and can change on future
platforms.
In this patch, we maintain the reverse map from a pstate to it's index
in the cpufreq frequency table and use this in pstate_to_idx(). This
does away with the assumptions (1) mentioned above, and will work with
non continguous pstate ids. If no entry exists for a particular
pstate, then such a pstate is treated as being out of bounds. This
gets rid of assumption (2).
On all the existing platforms, where the pstates are 8-bit long
values, the new implementation of pstate_to_idx() takes constant time.
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
On POWERNV platform, the fields for pstates in the Power Management
Status Register (PMSR) and the Power Management Control Register
(PMCR) are 8-bits wide. On POWER8 the pstates are negatively numbered
while on POWER9 they are positively numbered.
The device-tree exports pstates as 32-bit entries. The device-tree
implementation sign-extends the 8-bit pstate values to obtain the
corresponding 32-bit entry.
Eg: On POWER8, a pstate value 0x82 [-126] is represented in the
device-tree as 0xfffffff82 while on POWER9, the same value 0x82 [130]
is represented in the device-tree as 0x00000082.
The powernv-cpufreq driver implementation represents pstates using the
integer type. In multiple places in the driver, the code interprets
the pstates extracted from the PMSR as a signed byte and assigns it to
a integer variable to get the sign-extention.
On POWER9 platforms which have greater than 128 pstates, this results
in the driver performing incorrect sign-extention, and thereby
treating a legitimate pstate (say 130) as an invalid pstates (since it
is interpreted as -126).
This patch fixes the issue by implementing a helper function to
extract Pstates from PMSR register, and correctly sign-extend it to be
consistent with the values provided by the device-tree.
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
22000 devices (previously referenced as A000) can support
short transmit queues. This means that we have less DMA
descriptors (TFD) for those shorter queues.
Previous devices must still have 256 TFDs for each queue
even if those 256 TFDs point to fewer buffers.
When I introduced support for the short queues for 22000
I broke older devices by assuming that they can also have
less TFDs in their queues. This led to several problems:
1) the payload of the commands weren't unmapped properly
which caused the SWIOTLB to complain at some point.
2) the hardware could get confused and we get hardware
crashes.
The corresponding bugzilla entries are:
https://bugzilla.kernel.org/show_bug.cgi?id=198201https://bugzilla.kernel.org/show_bug.cgi?id=198265
Cc: stable@vger.kernel.org # 4.14+
Fixes: 4ecab56160 ("iwlwifi: pcie: support short Tx queues for A000 device family")
Reviewed-by: Sharon, Sara <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Pull "Reset controller changes for v4.16" from Philipp Zabel:
This adds Meson-AXG reset support and fixes a few issues with the reset
include header: device_reset_optional is fixed to be really optional,
unused headers are pruned, and useless warnings and deprecated API calls
are removed.
* tag 'reset-for-4.16' of git://git.pengutronix.de/git/pza/linux:
reset: meson-axg: add compatible string for Meson-AXG SoC
dt-bindings: reset: Add bindings for the Meson-AXG SoC Reset Controller
reset: remove reset_control_get(_optional)
reset: minimize the number of headers included from <linux/reset.h>
reset: remove remaining WARN_ON() in <linux/reset.h>
reset: make device_reset_optional() really optional
'Commit cc27b735ad ("PCI/portdrv: Turn off PCIe services during
shutdown")' revealed a resource leak in rtsx_pci driver during shutdown.
Issue shows up as a warning during shutdown as follows:
remove_proc_entry: removing non-empty directory 'irq/17', leaking at least
'rtsx_pci'
WARNING: CPU: 0 PID: 1578 at fs/proc/generic.c:572
remove_proc_entry+0x11d/0x130
Modules linked in <long list but none that are out-of-tree>
...
Call Trace:
unregister_irq_proc
free_desc
irq_free_descs
mp_unmap_irq
acpi_unregister_gsi_apic
acpi_pci_irq_disable
do_pci_disable_device
pci_disable_device
device_shutdown
kernel_restart
Sys_reboot
Even though rtsx_pci driver implements a shutdown callback, it is not
releasing the interrupt that it registered during probe. This is causing
the ACPI layer to complain that the shared IRQ is in use while freeing
IRQ.
This code releases the IRQ to prevent resource leak and eliminate the
warning.
Fixes: cc27b735ad ("PCI/portdrv: Turn off PCIe services during shutdown")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=198141
Reported-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The first and only parameter of slc_alloc() is unused, so remove it.
Suggested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The 4th argument of peak_usb_netif_rx() "u32 ts_high" is never used, so remove it.
Suggested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The 2nd parameter of mcp251x_setup() "struct mcp251x_priv *priv" is not
used, so remove it.
Suggested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The 2nd parameter of gs_cmd_reset() "struct gs_usb *gsusb" is unused, so
remove it.
Suggested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This patch removes the duplicate semicolon at the end of the return
statement.
Suggested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Some GPIO lines appear named "?" in the lsgpio dump due to their
requesting drivers not passing a reasonable label.
Most typically this happens if a device tree node just defines
gpios = <...> and not foo-gpios = <...>, the former gets named
"foo" and the latter gets named "?".
However the struct device passed in is always valid so let's
just label the GPIO with dev_name() on the device if no proper
label was passed.
Cc: Reported-by: Jason Kridner <jkridner@beagleboard.org>
Reported-by: Jason Kridner <jkridner@beagleboard.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This patch fixes the hash support in the SafeXcel driver when the update
size is a multiple of a block size, and when a final call is made just
after with a size of 0. In such cases the driver should cache the last
block from the update to avoid handling 0 length data on the final call
(that's a hardware limitation).
Cc: stable@vger.kernel.org
Fixes: 1b44c5a60c ("crypto: inside-secure - add SafeXcel EIP197 crypto engine driver")
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch adds a parameter in the SafeXcel ahash request structure to
keep track of the number of SG entries mapped. This allows not to call
dma_unmap_sg() when dma_map_sg() wasn't called in the first place. This
also removes a warning when the debugging of the DMA-API is enabled in
the kernel configuration: "DMA-API: device driver tries to free DMA
memory it has not allocated".
Cc: stable@vger.kernel.org
Fixes: 1b44c5a60c ("crypto: inside-secure - add SafeXcel EIP197 crypto engine driver")
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
The ccm-aes-ppc4xx now fails one of testmgr's expected
failure test cases as such:
|decryption failed on test 10 for ccm-aes-ppc4xx:
|ret was 0, |expected -EBADMSG
It doesn't look like the hardware sets the authentication failure
flag. The original vendor source from which this was ported does
not have any special code or notes about why this would happen or
if there are any WAs.
Hence, this patch converts the aead_done callback handler to
perform the icv check in the driver. And this fixes the false
negative and the ccm-aes-ppc4xx passes the selftests once again.
|name : ccm(aes)
|driver : ccm-aes-ppc4xx
|module : crypto4xx
|priority : 300
|refcnt : 1
|selftest : passed
|internal : no
|type : aead
|async : yes
|blocksize : 1
|ivsize : 16
|maxauthsize : 16
|geniv : <none>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto4xx_device's name variable is not set to anything.
The common devname for request_irq seems to be the module
name. This will fix the seemingly anonymous interrupt
entry in /proc/interrupts for crypto4xx.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This patch adds support for the crypto4xx RevB cores
found in the 460EX, 460SX and later cores (like the APM821xx).
Without this patch, the crypto4xx driver will not be
able to process any offloaded requests and simply hang
indefinitely.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
It is possible to avoid the ce_base null pointer check in the
drivers' interrupt handler routine "crypto4xx_ce_interrupt_handler()"
by simply doing the iomap in front of the IRQ registration.
This way, the ce_base will always be valid in the handler and
a branch in an critical path can be avoided.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers for 4.16
- use PTR_ERR_OR_ZERO were relevant in at91_cf
* tag 'at91-ab-4.16-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
pcmcia: at91_cf: Use PTR_ERR_OR_ZERO()
Signed-off-by: Olof Johansson <olof@lixom.net>
This is the pxa changes for v4.16 cycle.
It is :
- the conversion to the new parser sharpslpart parser
for the Sharp variants
- an I2C platform data cleanup for PXA
- a gpioreg switch of one register for lubbock
* tag 'pxa-for-4.16' of https://github.com/rjarzmik/linux:
ARM: pxa/lubbock: add GPIO driver for LUB_MISC_WR register
ARM: pxa/poodle: Remove hardcoded partitioning, use sharpslpart parser
ARM: pxa/spitz: Remove hardcoded partitioning, use sharpslpart parser
ARM: pxa/tosa: Remove hardcoded partitioning, use sharpslpart parser
ARM: pxa/corgi: Remove hardcoded partitioning, use sharpslpart parser
ARM: pxa: move header file out of I2C realm
ARM: pxa: move declarations to proper place
Signed-off-by: Olof Johansson <olof@lixom.net>
TI sysc driver updates for v4.16 merge window
We now have gotten ti-sysc driver to the point where it can parse
interconnect target configuration from device tree instead of the
legacy platform data. This series updates the device tree binding
and adds parsing to the driver for quirks and capabilities.
* tag 'omap-for-v4.16/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
bus: ti-sysc: Add parsing of module capabilities
bus: ti-sysc: Handle module quirks based dts configuration
bus: ti-sysc: Detect i2c interconnect target module based on register layout
bus: ti-sysc: Add register bits for interconnect target modules
bus: ti-sysc: Make omap_hwmod_sysc_fields into sysc_regbits platform data
ARM: OMAP2+: Move all omap_hwmod_sysc_fields to omap_hwmod_common_data.c
ARM: dts: Add generic ti,sysc compatible in addition to the custom ones
dt-bindings: ti-sysc: Update binding for timers and capabilities
Signed-off-by: Olof Johansson <olof@lixom.net>
Second Round of Renesas ARM Based SoC Updates for v4.16
* rcar-sysc: Keep wakeup sources active during system suspend
Geert Uytterhoeven says "If an R-Car SYSC slave device is part of the
CPG/MSTP or CPG/MSSR Clock Domain and to be used as a wakeup source, it
must be kept active during system suspend.
Currently this is handled in device-specific drivers by explicitly
increasing the use count of the module clock when the device is
configured as a wakeup source. However, the proper way to prevent the
device from being stopped is to inform this requirement to the genpd
core, by setting the GENPD_FLAG_ACTIVE_WAKEUP flag.
Note that this will only affect devices configured as wakeup sources."
* tag 'renesas-soc2-for-v4.16' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
soc: renesas: rcar-sysc: Keep wakeup sources active during system suspend
Signed-off-by: Olof Johansson <olof@lixom.net>
Actions Semi SoC drivers for v4.16
The SPS power domain driver is extended for S700 SoC.
* tag 'actions-drivers-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions:
soc: actions: sps: Add S700
Signed-off-by: Olof Johansson <olof@lixom.net>
This pull request contains Broadcom ARM/ARM64 based SoCs drivers changes for
4.16, please pull the following:
- Arnd provides an update to the Raspberry Pi firmware interface and uses time64_t to
print the time to make it more future proof
- Florian provides a set of updates to make the Broadcom STB Bus Interface Unit code
work on newer ARM64-based chips, as well as perform the correct interface tuning
for these chips to reach the expected performance
* tag 'arm-soc/for-4.16/drivers' of http://github.com/Broadcom/stblinux:
soc: brcmstb: biuctrl: Move to early_initcall
soc: brcmstb: Split initialization
soc: brcmstb: biuctrl: Fine tune B53 MCP interface settings
soc: brcmstb: biuctrl: Wire-up new registers
soc: brcmstb: biuctrl: Prepare for saving/restoring other registers
soc: brcmstb: Correct CPU_CREDIT_REG offset for Brahma-B53 CPUs
soc: brcmstb: Make CPU credit offset more parameterized
dt-bindings: arm: brcmstb: Correct BIUCTRL node documentation
dt-bindings: arm: Add entry for Broadcom Brahma-B53
firmware: raspberrypi: print time using time64_t
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull drm fixes from Dave Airlie:
"Just collecting some fixes to finish my hoildays :-).
A few fixes for i915 (one documentation build fix), one ttm fix, one
AMD display fix, one omapdrm fix, and a set of armada fixes from
Russell.
All seem pretty small, you can now return to your latest security news
site"
* tag 'drm-fixes-for-v4.15-rc7' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Apply Display WA #1183 on skl, kbl, and cfl
drm/ttm: check the return value of kzalloc
drm/amd/display: call set csc_default if enable adjustment is false
docs: fix, intel_guc_loader.c has been moved to intel_guc_fw.c
omapdrm/dss/hdmi4_cec: fix interrupt handling
documentation/gpu/i915: fix docs build error after file rename
drm/i915: Put all non-blocking modesets onto an ordered wq
drm/i915: Disable DC states around GMBUS on GLK
drm/i915/psr: Fix register name mess up.
drm/armada: fix YUV planar format framebuffer offsets
drm/armada: improve efficiency of armada_drm_plane_calc_addrs()
drm/armada: fix UV swap code
drm/armada: fix SRAM powerdown
drm/armada: fix leak of crtc structure
drm/imx: format modifier support
- Add tiled prefetch support to PRE
- Add format modifier support to PRG and imx-drm-core
- Use runtime PM to control PRG clock
- Allow building ipu-v3 under COMPILE_TEST
* tag 'imx-drm-next-2018-01-02' of git://git.pengutronix.de/git/pza/linux:
gpu: ipu-v3: allow to build with COMPILE_TEST
drm/imx: advertise supported plane format modifiers
drm/imx: add FB modifier support
gpu: ipu-v3: prg: add modifier support
gpu: ipu-v3: pre: add tiled prefetch support
gpu: ipu-v3: prg: switch to runtime PM
ACPICA commit c75af007d35c0afe8791ac39b7749c7442f49912
The %*s format specifier prints a string with a width indicated by an integer.
In the case of acpi_os_printf() ("%*s", acpi_gbl_nesting_level, " "),
a single space is printed to the console when acpi_gbl_nesting_level
is 0 or 1. This change increments acpi_gbl_nesting_level so that there
is one space printed when acpi_gbl_nesting_level is 0 and two spaces
printed when acpi_gbl_nesting_level is 1.
Link: https://github.com/acpica/acpica/commit/c75af007
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This DM multipath NVMe bio-based support requires CONFIG_NVME_MULTIPATH
to not be set. In the future hopefully NVMe multipath and DM multipath
can co-exist more seemlessly. But as is, if CONFIG_NVME_MULTIPATH=Y
then all the individal NVMe paths will remain hidden to upper layers and
as such DM multipath will not be able to manage them.
Though NVMe's native multipathing doesn't multipath namespaces across
subsystems; so technically a user _could_ use CONFIG_NVME_MULTIPATH=Y
and also use DM multipath to multipath across subsystems.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This series builds upon the set of fixes previously submitted to move
Armada DRM closer to atomic modeset. We're nowhere near yet, but this
series helps to get us closer by unifying some of the differences
between the primary and overlay planes.
New features added allows userspace to disable the primary plane if
overlay is full screen and there's nothing obscuring the colorkey -
this saves having to fetch an entire buffer containing nothing but
colorkey when displaying full screen video.
[airlied: fixup for atomic plane helper rename:
a01cb8ba3f
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Wed Nov 1 22:16:19 2017 +0200
drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c
]
* 'drm-armada-devel-4.15' of git://git.armlinux.org.uk/~rmk/linux-arm: (29 commits)
drm/armada: expand overlay trace entry
drm/armada: implement primary plane update
drm/armada: extract register generation from armada_drm_primary_set()
drm/armada: wait for previous work when moving overlay window
drm/armada: move overlay plane register update generation
drm/armada: re-organise overlay register update generation
drm/armada: disable planes at next blanking period
drm/armada: avoid work allocation
drm/armada: allow armada_drm_plane_work_queue() to silently fail
drm/armada: use drm_plane_helper_check_state()
drm/armada: only enable HSMOOTH if scaling horizontally
drm/armada: move writes of LCD_SPU_SRAM_PARA1 under lock
drm/armada: move regs into armada_plane_work
drm/armada: move event sending into armada_plane_work
drm/armada: move fb retirement into armada_plane_work
drm/armada: move overlay plane work out from under spinlock
drm/armada: clear plane enable bit when disabling
drm/armada: clean up armada_drm_crtc_plane_disable()
drm/armada: allow the primary plane to be disabled
drm/armada: wait and cancel any pending frame work at disable
...
Highlights this time:
1. Fix for a nasty Kconfig dependency chain issue from Philipp.
2. Occlusion query buffer address added to the cmdstream validator by
Christian.
3. Fixes and cleanups to the job handling from me. This allows us to
turn on the GPU performance profiling added in the last cycle.
It is also prep work for hooking in the DRM GPU scheduler, which I hope
to land for the next cycle.
* 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux: (32 commits)
drm/etnaviv: use memset32 to init pagetable
drm/etnaviv: move submit free out of critical section
drm/etnaviv: re-enable perfmon support
drm/etnaviv: couple runtime PM management to submit object lifetime
drm/etnaviv: move GPU active handling to bo pin/unpin
drm/etnaviv: move cmdbuf into submit object
drm/etnaviv: use submit exec_state for perfmon sampling
drm/etnaviv: move exec_state to submit object
drm/etnaviv: move PMRs to submit object
drm/etnaviv: refcount the submit object
drm/etnaviv: move ww_acquire_ctx out of submit object
drm/etnaviv: move object unpinning to submit cleanup
drm/etnaviv: attach in fence to submit and move fence wait to fence_sync
drm/etnaviv: rename submit fence to out_fence
drm/etnaviv: move object fence attachment to gem_submit path
drm/etnaviv: simplify submit_create
drm/etnaviv: add lockdep annotations to buffer manipulation functions
drm/etnaviv: hold GPU lock while inserting END command
drm/etnaviv: move workqueue to be per GPU
drm/etnaviv: remove switch_context member from etnaviv_gpu
...
