Age | Commit message (Collapse) | Author |
|
Add helper code for booting RISC-V based engines where firmware is
located in a carveout.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
|
|
NVDEC on Tegra234 requires multiple clocks. Add support for that.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
|
|
Add entries for NVDEC to the Tegra234 SID table.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
|
|
On Tegra234 NVDEC firmware is loaded from a secure carveout, where it
has been loaded by a bootloader. When booting NVDEC, we need to tell it
the address of this firmware, which we can determine by checking the
starting address of the carveout. As such, add an MC API to query the
bounds of carveouts, and add related information on Tegra234.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
|
|
Prefer the parsed results for is_hdmi in display info over calling
drm_detect_hdmi_monitor().
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
|
|
Add the missing clk_disable_unprepare() before return from
tegra_dc_probe() in the error handling path.
Fixes: f68ba6912bd2 ("drm/tegra: dc: Link DC1 to DC0 on Tegra20")
Signed-off-by: Zhang Zekun <zhangzekun11@huawei.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
|
|
This patch fixes the following Coccinelle warning:
drivers/gpu/drm/tegra/submit.c:173: WARNING opportunity for vmemdup_user
Use vmemdup_user() rather than duplicating its implementation.
This is a little bit restricted to reduce false positives.
Signed-off-by: Qing Wang <wangqing@vivo.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
|
|
On Tegra234, engines that are programmed through Host1x channels can
be attached to either the NISO0 or NISO1 SMMU. Because of that, when
selecting a context device to use with an engine, we need to select
one that is also attached to the same SMMU.
Add a parameter to host1x_memory_context_alloc to specify which device
we are allocating a context for, and use it to pick an appropriate
context device.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
[treding@nvidia.com: update !IOMMU_API stub signature]
Signed-off-by: Thierry Reding <treding@nvidia.com>
|
|
Merge series from Jonathan Neuschäfer <j.neuschaefer@gmx.net>:
This patchset adds DT bindings and a driver for the Flash Interface Unit
(FIU), the SPI flash controller in the Nuvoton WPCM450 BMC SoC. It
supports four chip selects, and direct (memory-mapped) access to 16 MiB
per chip. Larger flash chips can be accessed by software-defined SPI
transfers.
The existing NPCM7xx FIU driver is sufficitently incompatible with the
WPCM450 FIU that I decided to write a new driver.
|
|
Merge series from Richard Fitzgerald <rf@opensource.cirrus.com>:
Use EXPORT_SYMBOL_NS_GPL() instead of EXPORT_SYMBOL_GPL() and patch the
three drivers that use cs_dsp to add the MODULE_IMPORT_NS().
To make the namespace more specific the KConfig symbol for cs_dsp is
changed from CS_DSP to FW_CS_DSP.
|
|
Merge series from Bard Liao <yung-chuan.liao@linux.intel.com>:
The code in drivers/soundwire/intel_init.c is hardware-dependent and the
code does not apply to new generations starting with MeteorLake. Refactor
and clean-up the code to make this intel_init.c hardware-agnostic and
move all hardware-dependencies in the SOF driver using chip descriptors.
|
|
Merge series from Richard Fitzgerald <rf@opensource.cirrus.com>:
Writing a firmware control should be returning 1 if the control value
changed, so these two patches add that.
Though this is an ALSA requirement it is also useful for non-ALSA clients
of cs_dsp to know if the control value changed, so the main handling is
implemented in cs_dsp. TLV controls are specifically an ALSA thing so they
are handled specially in wm_adsp.
Simon Trimmer (2):
firmware: cs_dsp: cs_dsp_coeff_write_ctrl() should report changed
ASoC: wm_adsp: Return whether changed when writing controls
drivers/firmware/cirrus/cs_dsp.c | 17 ++++++++++++-----
sound/soc/codecs/wm_adsp.c | 27 ++++++++++++++++++---------
2 files changed, 30 insertions(+), 14 deletions(-)
--
2.30.2
|
|
Since commit 0166dc11be91 ("of: make CONFIG_OF user selectable"), it
is possible to test-build any driver which depends on OF on any
architecture by explicitly selecting OF. Therefore depending on
COMPILE_TEST as an alternative is no longer needed.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Link: https://lore.kernel.org/r/20221125083114.67e7f83c@endymion.delvare
Signed-off-by: Mark Brown <broonie@kernel.org>
|
|
Besides software controlled SPI transfers (UMA, "user mode access"), FIU
also supports a 16 MiB mapping window per attached flash chip.
This patch implements direct mapped read access, to speed up flash reads.
Without direct mapping:
# time dd if=/dev/mtd0ro of=dump bs=1M
16+0 records in
16+0 records out
real 1m 47.74s
user 0m 0.00s
sys 1m 47.75s
With direct mapping:
# time dd if=/dev/mtd0ro of=dump bs=1M
16+0 records in
16+0 records out
real 0m 30.81s
user 0m 0.00s
sys 0m 30.81s
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20221124191400.287918-4-j.neuschaefer@gmx.net
Signed-off-by: Mark Brown <broonie@kernel.org>
|
|
The Flash Interface Unit (FIU) is the SPI flash controller in the
Nuvoton WPCM450 BMC SoC. It supports four chip selects, and direct
(memory-mapped) access to 16 MiB per chip. Larger flash chips can be
accessed by software-defined SPI transfers.
The FIU in newer NPCM7xx SoCs is not compatible with the WPCM450 FIU.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20221124191400.287918-3-j.neuschaefer@gmx.net
Signed-off-by: Mark Brown <broonie@kernel.org>
|
|
Move all the exports into a namespace.
This also adds the MODULE_IMPORT_NS to the 3 drivers that use the
exported functions.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221124134556.3343784-3-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
|
|
Qualify the KConfig symbol for cs_dsp by adding a FW_ prefix so that
it is more explicit what is being referred to. This is preparation for
using the symbol to namespace the exports.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221124134556.3343784-2-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
|
|
drivers/media/pci/intel/ipu3/cio2-bridge.c: In function ‘cio2_bridge_unregister_sensors’:
drivers/media/pci/intel/ipu3/cio2-bridge.c:258:17: error: implicit declaration of function ‘i2c_unregister_device’; did you mean ‘spi_unregister_device’? [-Werror=implicit-function-declaration]
258 | i2c_unregister_device(sensor->vcm_i2c_client);
| ^~~~~~~~~~~~~~~~~~~~~
| spi_unregister_device
Link: https://lore.kernel.org/linux-media/S230142AbiJTWql/20221020224641Z+958@vger.kernel.org
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
Commit 5441e9dafdfc6dc40 ("[media] s5p-mfc: Core support for MFC v7")
which adds mfc v7 support for Exynos3250 and use the same compatible
string as used by Exynos5240 but both the IPs are a bit different in
terms of IP clock.
Add variant driver data based on the new compatible string
"samsung,exynos3250-mfc" for Exynos3250 SoC.
Suggested-by: Alim Akhtar <alim.akhtar@samsung.com>
Fixes: 5441e9dafdfc ("[media] s5p-mfc: Core support for MFC v7")
Signed-off-by: Aakarsh Jain <aakarsh.jain@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
Core thread will continue to work when core_list is not empty, not
depends on lat_list.
Fixes: 365e4ba01df4 ("media: mtk-vcodec: Add work queue for core hardware decode")
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
Need to set lat buf to lat_list when lat decode error, or lat buffer will
be lost.
Fixes: 5d418351ca8f ("media: mediatek: vcodec: support stateless VP9 decoding")
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
Will set lat buffer to lat_list two times when lat decode timeout for
inner racing mode.
If core thread can't get frame buffer, need to return error value.
Fixes: 59fba9eed5a7 ("media: mediatek: vcodec: support stateless H.264 decoding for mt8192")
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
Core thread will call v4l2_m2m_buf_done to set dst buffer done for
lat architecture. If lat call v4l2_m2m_buf_done_and_job_finish to
free dst buffer when lat decode error, core thread will access kernel
NULL pointer dereference, then crash.
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
The driver may can't get v4l2 buffer when lat or core decode timeout,
will lead to crash when call v4l2_m2m_buf_done to set dst buffer
(NULL pointer) done.
Fixes: 7b182b8d9c85 ("media: mediatek: vcodec: Refactor get and put capture buffer flow")
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
driver needs to cancel vpu before releasing the vpu instance,
so call v4l2_m2m_ctx_release() first,
to handle the redundant event triggered after m2m_ctx is released.
lock and check m2m_ctx in the event handler.
Fixes: 3cd084519c6f ("media: amphion: add vpu v4l2 m2m support")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
Revert "media: amphion: release m2m ctx when releasing vpu instance"
This reverts commit d91d7bc85062309aae6d8064563ddf17947cb6bc.
Call v4l2_m2m_ctx_release() to cancel vpu,
afterwards release the vpu instance.
Fixes: d91d7bc85062 ("media: amphion: release m2m ctx when releasing vpu instance")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
firmware should be waked up by start or configure command,
but there is a very small chance that firmware failed to wakeup.
in such case, try to wakeup firmware again by sending a noop command
Fixes: 6de8d628df6e ("media: amphion: add v4l2 m2m vpu decoder stateful driver")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
The VIDEO_ASPEED is part of the Aspeed silicon so it makes
sense to depend on ARCH_ASPEED and for compile testing.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
This allows the device to probe and register its async subdev without
a sensor attached.
The rationale is that the parent driver might otherwise wait for the
subdev to be registered when it should be available (from the fwnode
graph endpoint perspective). This is generally not problematic when
the MIPI CSI-2 bridge is the only device attached to the parent, but
in the case of a CSI controller that can feed from both MIPI CSI-2
and parallel, it would prevent using the parallel sensor due to the
parent waiting for the MIPI CSI-2 subdev to register.
Fixes: 576d196c522b ("media: sunxi: Add support for the A83T MIPI CSI-2 controller")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
This allows the device to probe and register its async subdev without
a sensor attached.
The rationale is that the parent driver might otherwise wait for the
subdev to be registered when it should be available (from the fwnode
graph endpoint perspective). This is generally not problematic when
the MIPI CSI-2 bridge is the only device attached to the parent, but
in the case of a CSI controller that can feed from both MIPI CSI-2
and parallel, it would prevent using the parallel sensor due to the
parent waiting for the MIPI CSI-2 subdev to register.
Fixes: af54b4f4c17f ("media: sunxi: Add support for the A31 MIPI CSI-2 controller")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
The bridge needs both its pads connected to be able to stream data.
Enforcing this is useful to produce an error when no sensor is
connected.
Fixes: 576d196c522b ("media: sunxi: Add support for the A83T MIPI CSI-2 controller")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
Zero-length arrays are deprecated[1] and are being replaced with
flexible array members in support of the ongoing efforts to tighten the
FORTIFY_SOURCE routines on memcpy(), correctly instrument array indexing
with UBSAN_BOUNDS, and to globally enable -fstrict-flex-arrays=3.
Replace zero-length array with flexible-array member.
This results in no differences in binary output.
[1] https://github.com/KSPP/linux/issues/78
Cc: Christian Lamparter <chunkeey@googlemail.com>
Cc: Kalle Valo <kvalo@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20221118211146.never.395-kees@kernel.org
|
|
The bridge needs both its pads connected to be able to stream data.
Enforcing this is useful to produce an error when no sensor is
connected.
Fixes: af54b4f4c17f ("media: sunxi: Add support for the A31 MIPI CSI-2 controller")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
In a SoC based solution, it would be useful to know the versions of the
various binary firmware blobs the system is running on. On a QCOM based
SoC, this info can be obtained from socinfo debugfs infrastructure. For
this to work, respective subsystem drivers have to export the firmware
version information to an SMEM based version information table.
Having firmware version information at one place will help quickly
figure out the firmware versions of various subsystems on the device
instead of going through builds/logs in an event of a system crash.
Fill WLAN firmware version information in SMEM version table to be
printed as part of socinfo debugfs infrastructure on a Qualcomm based
SoC.
This change is applicable only for SNOC/QMI based targets.
Example:
cat /sys/kernel/debug/qcom_socinfo/cnss/name
QC_IMAGE_VERSION_STRING=WLAN.HL.3.2.2.c10-00754-QCAHLSWMTPL-1
Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.2.2.c10-00754-QCAHLSWMTPL-1
Signed-off-by: Youghandhar Chintala <quic_youghand@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20221117180534.2267-1-quic_youghand@quicinc.com
|
|
encoder add support for contiguous formats NV12
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
decoder add support for contiguous formats
V4L2_PIX_FMT_NV12_8L128 and V4L2_PIX_FMT_NV12_10BE_8L128
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
Driver should tell the number of memory planes and component planes.
the amphion vpu support non contiguous planes,
but for compatibility with other device
that only support contiguous planes.
driver can add support for contiguous planes in the same time.
Then the mem_planes can be different from the comp_planes.
driver need to handle buffer according mem_planes and comp_planes.
So driver can support NV12 and NV12M.
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
add contiguous nv12 tiled format nv12_8l128 and nv12_10be_8l128
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
The CLEAR_AFTER_FIELD defined here is functionally the same as
memset_after() helper, so replace it with memset_after() to simplify the
code, no functional change in this patch.
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
Add support for the UDS (Up Down Scaler) found in some Gen3 SoCs.
Not all Gen3 SoCs have scalers, and for those that do it's only
available to the master node of each VIN group. The setup for which SoCs
and nodes have access to a scaler are dealt with at probe time and then
function transparently reusing the schema from the already present Gen2
scaler.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
The scaler implementation is different between the VIN generations, and
not all SoCs have a scaler. Currently only Gen2 scalers are supported.
Prepare to add support for more scalers by storing the setup in a
function pointer initialized at probe time. While at it move call site
to after, instead of before, the generic capture setup, this have no
effect on the Gen2 scaler but will be leveraged by the Gen3 scaler.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
Prepare for scaling support in the media controller part of the driver
by not caching the remote rectangle. Mimic the omap3isp and look it up
each time it's needed.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
|
|
In __mmc_test_register_dbgfs_file(), we need to assign 'file', as it's
being used when removing the debugfs files when the mmc_test module is
removed.
Fixes: a04c50aaa916 ("mmc: core: no need to check return value of debugfs_create functions")
Signed-off-by: Ye Bin <yebin10@huawei.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
[Ulf: Re-wrote the commit msg]
Link: https://lore.kernel.org/r/20221123095506.1965691-1-yebin@huaweicloud.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2022-11-23 (ice)
This series contains updates to ice driver only.
Karol adjusts check of PTP hardware to wait longer but check more often.
Brett removes use of driver defined link speed; instead using the values
from ethtool.h, utilizing static tables for indexing.
Ben adds tracking of stats in order to accumulate reported statistics that
were previously reset by hardware.
Marcin fixes issues setting RXDID when queues are asymmetric.
Anatolii re-introduces use of define over magic number; ICE_RLAN_BASE_S.
---
v3:
- Dropped, previous, patch 2
v2:
Patch 5
- Convert some allocations to non-managed
- Remove combined error checking; add error checks for each call
- Remove excess NULL checks
- Remove unnecessary NULL sets and newlines
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
kmap_atomic() is being deprecated in favor of kmap_local_page(). Replace
kmap_atomic() and kunmap_atomic() with kmap_local_page() and kunmap_local()
respectively.
Note that kmap_atomic() disables preemption and page-fault processing, but
kmap_local_page() doesn't. When converting uses of kmap_atomic(), one has
to check if the code being executed between the map/unmap implicitly
depends on page-faults and/or preemption being disabled. If yes, then code
to disable page-faults and/or preemption should also be added for
functional correctness. That however doesn't appear to be the case here,
so just kmap_local_page() is used.
Also note that the page being mapped is not allocated by the driver, and so
the driver doesn't know if the page is in normal memory. This is the reason
kmap_local_page() is used as opposed to page_address().
I don't have hardware, so this change has only been compile tested.
Cc: Michael Jamet <michael.jamet@intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Yehezkel Bernat <YehezkelShB@gmail.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
kmap_atomic() is being deprecated in favor of kmap_local_page(). Replace
kmap_atomic() and kunmap_atomic() with kmap_local_page() and kunmap_local()
respectively.
Note that kmap_atomic() disables preemption and page-fault processing, but
kmap_local_page() doesn't. When converting uses of kmap_atomic(), one has
to check if the code being executed between the map/unmap implicitly
depends on page-faults and/or preemption being disabled. If yes, then code
to disable page-faults and/or preemption should also be added for
functional correctness. That however doesn't appear to be the case here,
so just kmap_local_page() is used.
Also note that the page being mapped is not allocated by the driver, and so
the driver doesn't know if the page is in normal memory. This is the reason
kmap_local_page() is used as opposed to page_address().
I don't have hardware, so this change has only been compile tested.
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
kmap_atomic() is being deprecated in favor of kmap_local_page(). Replace
the map-memcpy-unmap usage pattern (done using k[un]map_atomic()) with
memcpy_from_page(), which internally uses kmap_local_page() and
kunmap_local(). This renders the variable 'vaddr' unnecessary, and so
remove this too.
Note that kmap_atomic() disables preemption and page-fault processing, but
kmap_local_page() doesn't. When converting uses of kmap_atomic(), one has
to check if the code being executed between the map/unmap implicitly
depends on page-faults and/or preemption being disabled. If yes, then code
to disable page-faults and/or preemption should also be added for
functional correctness. That however doesn't appear to be the case here,
so just memcpy_from_page() is used.
Also note that the page being mapped is not allocated by the driver, and so
the driver doesn't know if the page is in normal memory. This is the reason
kmap_local_page() is used (via memcpy_from_page()) as opposed to
page_address().
I don't have hardware, so this change has only been compile tested.
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Suggested-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Pages for Rx buffers are allocated in cas_page_alloc() using either
GFP_ATOMIC or GFP_KERNEL. Memory allocated with GFP_KERNEL/GFP_ATOMIC can't
come from highmem and so there's no need to kmap() them. Just use
page_address() instead. This makes the variable 'addr' unnecessary, so
remove it too.
Note that kmap_atomic() disables preemption and page-fault processing,
but page_address() doesn't. When removing uses of kmap_atomic(), one has to
check if the code being executed between the map/unmap implicitly depends
on page-faults and/or preemption being disabled. If yes, then code to
disable page-faults and/or preemption should also be added for functional
correctness. That however doesn't appear to be the case here, so just
page_address() is used.
I don't have hardware, so this change has only been compile tested.
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
kmap_atomic() is being deprecated in favor of kmap_local_page(). Replace
kmap_atomic() and kunmap_atomic() with kmap_local_page() and kunmap_local()
respectively.
Note that kmap_atomic() disables preemption and page-fault processing, but
kmap_local_page() doesn't. When converting uses of kmap_atomic(), one has
to check if the code being executed between the map/unmap implicitly
depends on page-faults and/or preemption being disabled. If yes, then code
to disable page-faults and/or preemption should also be added for
functional correctness. That however doesn't appear to be the case here,
so just kmap_local_page() is used.
Also note that the page being mapped is not allocated by the driver, and so
the driver doesn't know if the page is in normal memory. This is the reason
kmap_local_page() is used as opposed to page_address().
I don't have hardware, so this change has only been compile tested.
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Cc: Edward Cree <ecree.xilinx@gmail.com>
Cc: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
kmap_atomic() is being deprecated in favor of kmap_local_page(). Replace
the map-memcpy-unmap usage pattern (done using k[un]map_atomic()) with
memcpy_from_page(), which internally uses kmap_local_page() and
kunmap_local(). This renders the variables 'data' and 'vaddr' unnecessary,
and so remove these too.
Note that kmap_atomic() disables preemption and page-fault processing, but
kmap_local_page() doesn't. When converting uses of kmap_atomic(), one has
to check if the code being executed between the map/unmap implicitly
depends on page-faults and/or preemption being disabled. If yes, then code
to disable page-faults and/or preemption should also be added for
functional correctness. That however doesn't appear to be the case here,
so just memcpy_from_page() is used.
Also note that the page being mapped is not allocated by the driver, and so
the driver doesn't know if the page is in normal memory. This is the reason
kmap_local_page() is used (via memcpy_from_page()) as opposed to
page_address().
I don't have hardware, so this change has only been compile tested.
Cc: Ayush Sawal <ayush.sawal@chelsio.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Suggested-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Acked-by: Ayush Sawal <ayush.sawal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|