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Definitions throughout qcom_scm are loosely grouped and loosely ordered.
Sort all the functions/definitions by service ID/command ID to improve
sanity when needing to add new functionality to this driver.
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-16-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Remove unused qcom_scm_get_version.
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Brian Masney <masneyb@onstation.org> # arm32
Tested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Link: https://lore.kernel.org/r/1578431066-19600-4-git-send-email-eberman@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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This lock is used to protect the qp->open_list linked list. As a side
effect it seems to also globally serialize the qp event_handler, but it
isn't clear if that is a deliberate design.
Link: https://lore.kernel.org/r/20191212113024.336702-5-leon@kernel.org
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Given that ib_cache structure has only single member now, merge the cache
lock directly in the ib_device.
Link: https://lore.kernel.org/r/20191212113024.336702-4-leon@kernel.org
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Currently when the low level driver notifies Pkey, GID, and port change
events they are notified to the registered handlers in the order they are
registered.
IB core and other ULPs such as IPoIB are interested in GID, LID, Pkey
change events.
Since all GID queries done by ULPs are serviced by IB core, and the IB
core deferes cache updates to a work queue, it is possible for other
clients to see stale cache data when they handle their own events.
For example, the below call tree shows how ipoib will call
rdma_query_gid() concurrently with the update to the cache sitting in the
WQ.
mlx5_ib_handle_event()
ib_dispatch_event()
ib_cache_event()
queue_work() -> slow cache update
[..]
ipoib_event()
queue_work()
[..]
work handler
ipoib_ib_dev_flush_light()
__ipoib_ib_dev_flush()
ipoib_dev_addr_changed_valid()
rdma_query_gid() <- Returns old GID, cache not updated.
Move all the event dispatch to a work queue so that the cache update is
always done before any clients are notified.
Fixes: f35faa4ba956 ("IB/core: Simplify ib_query_gid to always refer to cache")
Link: https://lore.kernel.org/r/20191212113024.336702-3-leon@kernel.org
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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This reverts commit 6ed7e9625fa6 ("drm/bridge: Add a drm_bridge_state
object") which introduced a circular dependency between drm.ko and
drm_kms_helper.ko. Looks like the helper/core split is not appropriate
and fixing that is not simple.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107185807.606999-6-boris.brezillon@collabora.com
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This reverts commit f7619a58ef92 ("drm/bridge: Patch atomic hooks to
take a drm_bridge_state"). Commit 6ed7e9625fa6 ("drm/bridge: Add a
drm_bridge_state object") introduced a circular dependency between
drm.ko and drm_kms_helper.ko which uncovered a misdesign in how the
whole thing was implemented. Let's revert all patches depending on the
bridge_state infrastructure for now.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107185807.606999-5-boris.brezillon@collabora.com
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This reverts commit b86d895524ab ("drm/bridge: Add an ->atomic_check()
hook"). Commit 6ed7e9625fa6 ("drm/bridge: Add a drm_bridge_state
object") introduced a circular dependency between drm.ko and
drm_kms_helper.ko which uncovered a misdesign in how the whole thing
was implemented. Let's revert all patches depending on the bridge_state
infrastructure for now.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107185807.606999-4-boris.brezillon@collabora.com
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This reverts commit e351e4d5eaec ("drm/bridge: Add the necessary bits
to support bus format negotiation"). Commit 6ed7e9625fa6 ("drm/bridge:
Add a drm_bridge_state object") introduced a circular dependency
between drm.ko and drm_kms_helper.ko which uncovered a misdesign in
how the whole thing was implemented. Let's revert all patches depending
on the bridge_state infrastructure for now.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107185807.606999-3-boris.brezillon@collabora.com
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Some SPI master controllers always drive a native chip select when
performing a transfer. Hence when using both native and GPIO chip
selects, at least one native chip select must be left unused, to be
driven when performing transfers with slave devices using GPIO chip
selects.
Currently, to find an unused native chip select, SPI controller drivers
need to parse and process cs-gpios theirselves. This is not only
duplicated in each driver that needs it, but also duplicates part of the
work done later at SPI controller registration time. Note that this
cannot be done after spi_register_controller() returns, as at that time,
slave devices may have been probed already.
Hence add generic support to the SPI subsystem for finding an unused
native chip select. Optionally, this unused native chip select, and all
other in-use native chip selects, can be validated against the maximum
number of native chip selects available on the controller hardware.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200102133822.29346-2-geert+renesas@glider.be
Signed-off-by: Mark Brown <broonie@kernel.org>
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The separate blocking pool is going away. Start by ignoring
GRND_RANDOM in getentropy(2).
This should not materially break any API. Any code that worked
without this change should work at least as well with this change.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/705c5a091b63cc5da70c99304bb97e0109be0a26.1577088521.git.luto@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Signed-off-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/d5473b56cf1fa900ca4bd2b3fc1e5b8874399919.1577088521.git.luto@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Track the lifetime of ib_mr objects. Here's sample output from a test run
with NFS/RDMA:
<...>-361 [009] 79238.772782: mr_alloc: pd.id=3 mr.id=11 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79238.772812: mr_alloc: pd.id=3 mr.id=12 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79238.772839: mr_alloc: pd.id=3 mr.id=13 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79238.772866: mr_alloc: pd.id=3 mr.id=14 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79238.772893: mr_alloc: pd.id=3 mr.id=15 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79238.772921: mr_alloc: pd.id=3 mr.id=16 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79238.772947: mr_alloc: pd.id=3 mr.id=17 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79238.772974: mr_alloc: pd.id=3 mr.id=18 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79238.773001: mr_alloc: pd.id=3 mr.id=19 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79238.773028: mr_alloc: pd.id=3 mr.id=20 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79238.773055: mr_alloc: pd.id=3 mr.id=21 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79240.270942: mr_alloc: pd.id=3 mr.id=22 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79240.270975: mr_alloc: pd.id=3 mr.id=23 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79240.271007: mr_alloc: pd.id=3 mr.id=24 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79240.271036: mr_alloc: pd.id=3 mr.id=25 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79240.271067: mr_alloc: pd.id=3 mr.id=26 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79240.271095: mr_alloc: pd.id=3 mr.id=27 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79240.271121: mr_alloc: pd.id=3 mr.id=28 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79240.271153: mr_alloc: pd.id=3 mr.id=29 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79240.271181: mr_alloc: pd.id=3 mr.id=30 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79240.271208: mr_alloc: pd.id=3 mr.id=31 type=MEM_REG max_num_sg=30 rc=0
<...>-361 [009] 79240.271236: mr_alloc: pd.id=3 mr.id=32 type=MEM_REG max_num_sg=30 rc=0
<...>-4351 [001] 79242.299400: mr_dereg: mr.id=32
<...>-4351 [001] 79242.299467: mr_dereg: mr.id=31
<...>-4351 [001] 79242.299554: mr_dereg: mr.id=30
<...>-4351 [001] 79242.299615: mr_dereg: mr.id=29
<...>-4351 [001] 79242.299684: mr_dereg: mr.id=28
<...>-4351 [001] 79242.299748: mr_dereg: mr.id=27
<...>-4351 [001] 79242.299812: mr_dereg: mr.id=26
<...>-4351 [001] 79242.299874: mr_dereg: mr.id=25
<...>-4351 [001] 79242.299944: mr_dereg: mr.id=24
<...>-4351 [001] 79242.300009: mr_dereg: mr.id=23
<...>-4351 [001] 79242.300190: mr_dereg: mr.id=22
<...>-4351 [001] 79242.300263: mr_dereg: mr.id=21
<...>-4351 [001] 79242.300326: mr_dereg: mr.id=20
<...>-4351 [001] 79242.300388: mr_dereg: mr.id=19
<...>-4351 [001] 79242.300450: mr_dereg: mr.id=18
<...>-4351 [001] 79242.300516: mr_dereg: mr.id=17
<...>-4351 [001] 79242.300629: mr_dereg: mr.id=16
<...>-4351 [001] 79242.300718: mr_dereg: mr.id=15
<...>-4351 [001] 79242.300784: mr_dereg: mr.id=14
<...>-4351 [001] 79242.300879: mr_dereg: mr.id=13
<...>-4351 [001] 79242.300945: mr_dereg: mr.id=12
<...>-4351 [001] 79242.301012: mr_dereg: mr.id=11
Some features of the output:
- The lifetime and owner PD of each MR is clearly visible.
- The type of MR is captured, as is the SGE array size.
- Failing MR allocation can be recorded.
Link: https://lore.kernel.org/r/20191218201820.30584.34636.stgit@manet.1015granger.net
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Sample trace events:
kworker/u29:0-300 [007] 120.042217: cq_alloc: cq.id=4 nr_cqe=161 comp_vector=2 poll_ctx=WORKQUEUE
<idle>-0 [002] 120.056292: cq_schedule: cq.id=4
kworker/2:1H-482 [002] 120.056402: cq_process: cq.id=4 wake-up took 109 [us] from interrupt
kworker/2:1H-482 [002] 120.056407: cq_poll: cq.id=4 requested 16, returned 1
<idle>-0 [002] 120.067503: cq_schedule: cq.id=4
kworker/2:1H-482 [002] 120.067537: cq_process: cq.id=4 wake-up took 34 [us] from interrupt
kworker/2:1H-482 [002] 120.067541: cq_poll: cq.id=4 requested 16, returned 1
<idle>-0 [002] 120.067657: cq_schedule: cq.id=4
kworker/2:1H-482 [002] 120.067672: cq_process: cq.id=4 wake-up took 15 [us] from interrupt
kworker/2:1H-482 [002] 120.067674: cq_poll: cq.id=4 requested 16, returned 1
...
systemd-1 [002] 122.392653: cq_schedule: cq.id=4
kworker/2:1H-482 [002] 122.392688: cq_process: cq.id=4 wake-up took 35 [us] from interrupt
kworker/2:1H-482 [002] 122.392693: cq_poll: cq.id=4 requested 16, returned 16
kworker/2:1H-482 [002] 122.392836: cq_poll: cq.id=4 requested 16, returned 16
kworker/2:1H-482 [002] 122.392970: cq_poll: cq.id=4 requested 16, returned 16
kworker/2:1H-482 [002] 122.393083: cq_poll: cq.id=4 requested 16, returned 16
kworker/2:1H-482 [002] 122.393195: cq_poll: cq.id=4 requested 16, returned 3
Several features to note in this output:
- The WCE count and context type are reported at allocation time
- The CPU and kworker for each CQ is evident
- The CQ's restracker ID is tagged on each trace event
- CQ poll scheduling latency is measured
- Details about how often single completions occur versus multiple
completions are evident
- The cost of the ULP's completion handler is recorded
Link: https://lore.kernel.org/r/20191218201815.30584.3481.stgit@manet.1015granger.net
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Fix up inconsistent usage of upper and lowercase letters in "Samsung"
and "Exynos" names.
"SAMSUNG" and "EXYNOS" are not abbreviations but regular trademarked
names. Therefore they should be written with lowercase letters starting
with capital letter.
The lowercase "Exynos" name is promoted by its manufacturer Samsung
Electronics Co., Ltd., in advertisement materials and on website.
Although advertisement materials usually use uppercase "SAMSUNG", the
lowercase version is used in all legal aspects (e.g. on Wikipedia and in
privacy/legal statements on
https://www.samsung.com/semiconductor/privacy-global/).
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/dt
Drop more legacy platform data for omaps for v5.6 merge window
We can now probe devices with ti-sysc interconnect driver and dts
data, and can continue dropping the related platform data and custom
ti,hwmods dts property for various devices.
And related to that, we finally can remove the legacy sdma support in
favor of using the dmaengine driver only. I was planning to send the
sdma changes separately, but that would have produced a pile of
pointless merge conflicts, so I decided it's best to resolve it locally.
After all, the sdma series also ends up removing the related platform
data.
Note that this series is based on omap-for-v5.6/ti-sysc-dt-signed branch
as it depends for dts data being in place.
* tag 'omap-for-v5.6/ti-sysc-drop-pdata-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (56 commits)
ARM: OMAP2+: Drop legacy platform data for sdma
ARM: OMAP2+: Drop legacy init for sdma
dmaengine: ti: omap-dma: Use cpu notifier to block idle for omap2
dmaengine: ti: omap-dma: Allocate channels directly
dmaengine: ti: omap-dma: Pass sdma auxdata to driver and use it
dmaengine: ti: omap-dma: Configure global priority register directly
ARM: OMAP5: hwmod-data: remove OMAP5 IOMMU hwmod data
ARM: OMAP4: hwmod-data: remove OMAP4 IOMMU hwmod data
ARM: OMAP2+: Drop legacy platform data for omap4 fdif
ARM: OMAP2+: Drop legacy platform data for omap4 slimbus
ARM: OMAP2+: Drop legacy platform data for omap5 kbd
ARM: OMAP2+: Drop legacy platform data for omap4 kbd
ARM: OMAP2+: Drop legacy platform data for dra7 smartreflex
ARM: OMAP2+: Drop legacy platform data for omap4 smartreflex
ARM: OMAP2+: Drop legacy platform data for omap4 hsi
ARM: OMAP2+: Drop legacy platform data for am4 vpfe
ARM: OMAP2+: Drop legacy platform data for dra7 ocp2scp
ARM: OMAP2+: Drop legacy platform data for omap5 ocp2scp
ARM: OMAP2+: Drop legacy platform data for omap4 ocp2scp
ARM: OMAP2+: Drop legacy platform data for am4 ocp2scp
...
Link: https://lore.kernel.org/r/pull-1578420398-290837@atomide.com-4
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/dt
dts changes for omaps for ti-sysc driver for v5.6 merge window
Devicetree changes for omaps to configure more devices to probe with
ti-sysc interconnect target module:
- Configure am4 qspi
- Configure aes, des and sham accelerators for am3, 4 and dra7
- Configure iommus for omap4, 5 and dra7
- Add a generic compatible for sdma, and configure omap2 and 3 sdma
* tag 'omap-for-v5.6/ti-sysc-dt-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (24 commits)
ARM: dts: omap5: convert IOMMUs to use ti-sysc
ARM: dts: omap4: convert IOMMUs to use ti-sysc
ARM: dts: dra74x: convert IOMMUs to use ti-sysc
ARM: dts: dra7: convert IOMMUs to use ti-sysc
ARM: dts: Configure interconnect target module for dra7 des
ARM: dts: Configure interconnect target module for am4 des
ARM: dts: Configure interconnect target module for dra7 aes
ARM: dts: Configure interconnect target module for am4 aes
ARM: dts: Configure interconnect target module for am3 aes
ARM: dts: Configure interconnect target module for dra7 sham
ARM: dts: Configure interconnect target module for am4 sham
ARM: dts: Configure interconnect target module for am3 sham
ARM: dts: Configure interconnect target module for am4 qspi
ARM: dts: Configure interconnect target module for omap3 sdma
ARM: dts: Configure interconnect target module for omap2 sdma
ARM: dts: Add generic compatible for omap sdma instances
bus: ti-sysc: Fix iterating over clocks
ARM: OMAP2+: Fix ti_sysc_find_one_clockdomain to check for to_clk_hw_omap
bus: ti-sysc: Fix missing reset delay handling
ARM: dts: am437x-gp/epos-evm: fix panel compatible
...
Link: https://lore.kernel.org/r/pull-1578420398-290837@atomide.com-3
Signed-off-by: Olof Johansson <olof@lixom.net>
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The function mlx5_buf_alloc_node is only used by the function in the
local scope. So it is appropriate to limit this function in the local
scope.
Signed-off-by: Zhu Yanjun <zyjzyj2000@gmail.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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This header file now only includes the cros_ec_dev struct, however, is the
'include/linux/platform_data/cros_ec_proto.h' who contains the definition of
all the Chrome OS EC related structs. There is no reason to have a
separate include for this struct so move to the place where other
structs are defined. That way, we can remove the include itself, but also
simplify the common pattern
#include <linux/mfd/cros_ec.h>
#include <linux/platform_data/cros_ec_proto.h>
for a single include
#include <linux/platform_data/cros_ec_proto.h>
The changes to remove the cros_ec.h include were generated with the
following shell script:
git grep -l "<linux/mfd/cros_ec.h>" | xargs sed -i '/<linux\/mfd\/cros_ec.h>/d'
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Export page table internals of the domain attached to each device.
Example of such dump on a Skylake machine:
$ sudo cat /sys/kernel/debug/iommu/intel/domain_translation_struct
[ ... ]
Device 0000:00:14.0 with pasid 0 @0x15f3d9000
IOVA_PFN PML5E PML4E
0x000000008ced0 | 0x0000000000000000 0x000000015f3da003
0x000000008ced1 | 0x0000000000000000 0x000000015f3da003
0x000000008ced2 | 0x0000000000000000 0x000000015f3da003
0x000000008ced3 | 0x0000000000000000 0x000000015f3da003
0x000000008ced4 | 0x0000000000000000 0x000000015f3da003
0x000000008ced5 | 0x0000000000000000 0x000000015f3da003
0x000000008ced6 | 0x0000000000000000 0x000000015f3da003
0x000000008ced7 | 0x0000000000000000 0x000000015f3da003
0x000000008ced8 | 0x0000000000000000 0x000000015f3da003
0x000000008ced9 | 0x0000000000000000 0x000000015f3da003
PDPE PDE PTE
0x000000015f3db003 0x000000015f3dc003 0x000000008ced0003
0x000000015f3db003 0x000000015f3dc003 0x000000008ced1003
0x000000015f3db003 0x000000015f3dc003 0x000000008ced2003
0x000000015f3db003 0x000000015f3dc003 0x000000008ced3003
0x000000015f3db003 0x000000015f3dc003 0x000000008ced4003
0x000000015f3db003 0x000000015f3dc003 0x000000008ced5003
0x000000015f3db003 0x000000015f3dc003 0x000000008ced6003
0x000000015f3db003 0x000000015f3dc003 0x000000008ced7003
0x000000015f3db003 0x000000015f3dc003 0x000000008ced8003
0x000000015f3db003 0x000000015f3dc003 0x000000008ced9003
[ ... ]
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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When software has changed first-level tables, it should invalidate
the affected IOTLB and the paging-structure-caches using the PASID-
based-IOTLB Invalidate Descriptor defined in spec 6.5.2.4.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Intel VT-d in scalable mode supports two types of page tables for
IOVA translation: first level and second level. The IOMMU driver
can choose one from both for IOVA translation according to the use
case. This sets up the pasid entry if a domain is selected to use
the first-level page table for iova translation.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Current map_sg stores trace message in a coarse manner. This
extends it so that more detailed messages could be traced.
The map_sg trace message looks like:
map_sg: dev=0000:00:17.0 [1/9] dev_addr=0xf8f90000 phys_addr=0x158051000 size=4096
map_sg: dev=0000:00:17.0 [2/9] dev_addr=0xf8f91000 phys_addr=0x15a858000 size=4096
map_sg: dev=0000:00:17.0 [3/9] dev_addr=0xf8f92000 phys_addr=0x15aa13000 size=4096
map_sg: dev=0000:00:17.0 [4/9] dev_addr=0xf8f93000 phys_addr=0x1570f1000 size=8192
map_sg: dev=0000:00:17.0 [5/9] dev_addr=0xf8f95000 phys_addr=0x15c6d0000 size=4096
map_sg: dev=0000:00:17.0 [6/9] dev_addr=0xf8f96000 phys_addr=0x157194000 size=4096
map_sg: dev=0000:00:17.0 [7/9] dev_addr=0xf8f97000 phys_addr=0x169552000 size=4096
map_sg: dev=0000:00:17.0 [8/9] dev_addr=0xf8f98000 phys_addr=0x169dde000 size=4096
map_sg: dev=0000:00:17.0 [9/9] dev_addr=0xf8f99000 phys_addr=0x148351000 size=4096
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Shared Virtual Memory(SVM) is based on a collective set of hardware
features detected at runtime. There are requirements for matching CPU
and IOMMU capabilities.
The current code checks CPU and IOMMU feature set for SVM support but
the result is never stored nor used. Therefore, SVM can still be used
even when these checks failed. The consequences can be:
1. CPU uses 5-level paging mode for virtual address of 57 bits, but
IOMMU can only support 4-level paging mode with 48 bits address for DMA.
2. 1GB page size is used by CPU but IOMMU does not support it. VT-d
unrecoverable faults may be generated.
The best solution to fix these problems is to prevent them in the first
place.
This patch consolidates code for checking PASID, CPU vs. IOMMU paging
mode compatibility, as well as provides specific error messages for
each failed checks. On sane hardware configurations, these error message
shall never appear in kernel log.
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel
gpio updates for v5.6
- improvements in the gpio-pca953x driver
- use platform_irq_count() in gpio-mvebu and gpio-bcm-kona
- remove unneeded MODULE_VERSION() usage in the gpio directory
- irq-related improvements in gpio-tegra driver
- several improvements for the core subsystem code: fix confusing indentation,
fix int type casting, unduplicate code in several places
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Commit 6a80b30086b8 ("fmc: Delete the FMC subsystem") from Linus Walleij
deleted the obsolete FMC subsystem, but missed the MAINTAINERS entry and
include/linux/ipmi-fru.h mentioned in the MAINTAINERS entry.
Later, commit d5d4aa1ec198 ("MAINTAINERS: Remove FMC subsystem") from
Denis Efremov cleaned up the MAINTAINERS entry, but actually also missed
that include/linux/ipmi-fru.h should also be deleted while deleting its
reference in MAINTAINERS.
So, deleting include/linux/ipmi-fru.h slipped through the previous
clean-ups.
As there is no further use for include/linux/ipmi-fru.h, finally delete
include/linux/ipmi-fru.h for good now.
Fixes: d5d4aa1ec198 ("MAINTAINERS: Remove FMC subsystem")
Fixes: 6a80b30086b8 ("fmc: Delete the FMC subsystem")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20191214114913.8610-1-lukas.bulwahn@gmail.com
Acked-by: Federico Vaga <federico.vaga@cern.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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addfb() uAPI has supported four planes for a while now, make format_info
compatible with that.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Mika Kahola <mika.kahola@intel.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191231233756.18753-7-imre.deak@intel.com
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Gen-12 display can decompress surfaces compressed by the media engine, add
a new modifier as the driver needs to know the surface was compressed by
the media or render engine.
v2: Update code comment describing the color plane order for YUV
semiplanar formats.
Cc: Nanley G Chery <nanley.g.chery@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Mika Kahola <mika.kahola@intel.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191231233756.18753-6-imre.deak@intel.com
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gpiochip_get_desc() takes a u16 hwnum, but it turns out most users don't
respect that and usually pass an unsigned int. Since implicit casting to
a smaller type is dangerous - let's change the type of hwnum to unsigned
int in gpiochip_get_desc() and in gpiochip_request_own_desc() where the
size of hwnum is not respected either and who's a user of the former.
This is safe as we then check the hwnum against the number of lines
before proceeding in gpiochip_get_desc().
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
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TTM is an implementation detail of the VRAM helpers and therefore
shouldn't be exposed to the callers. There's only one correct value
for the BO device anyway, which is the one stored in the DRM device.
So remove struct ttm_bo_device from the VRAM-helper interface and
use the device's VRAM manager unconditionally. The GEM initializer
function fails if the VRAM manager has not been initialized.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200106125745.13797-8-tzimmermann@suse.de
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The flag 'interruptible', which is passed to various functions,
is always set to be false. Remove it and hard-code the value.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200106125745.13797-7-tzimmermann@suse.de
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clk_set_rate() currently starts updating the rate for a clock at the
top-most affected clock and then walks down the tree to update the
bottom-most affected clock last.
This behavior is important for protected clocks where we can switch
between multiple parents to achieve the same output.
An example for this is the mali clock tree on Amlogic SoCs:
mali_0_mux (must not change when enabled)
mali_0_div (must not change when enabled)
mali_0 (gate)
mali_1_mux (must not change when enabled)
mali_1_div (must not change when enabled)
mali_1 (gate)
The final output can either use mali_0_gate or mali_1. To change the
final output we must switch to the "inactive" tree. Assuming mali_0 is
active, then we need to prepare mali_1 with the new desired rate and
finally switch the output to the mali_1 tree. This process will then
protect the mali_1 tree and at the same time unprotect the mali_0 tree.
The next call to clk_set_rate() will then switch from the mali_1 tree
back to mali_0.
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
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drm_bridge_state is extended to describe the input and output bus
configurations. These bus configurations are exposed through the
drm_bus_cfg struct which encodes the configuration of a physical
bus between two components in an output pipeline, usually between
two bridges, an encoder and a bridge, or a bridge and a connector.
The bus configuration is stored in drm_bridge_state separately for
the input and output buses, as seen from the point of view of each
bridge. The bus configuration of a bridge output is usually identical
to the configuration of the next bridge's input, but may differ if
the signals are modified between the two bridges, for instance by an
inverter on the board. The input and output configurations of a
bridge may differ if the bridge modifies the signals internally,
for instance by performing format conversion, or*modifying signals
polarities.
Bus format negotiation is automated by the core, drivers just have
to implement the ->atomic_get_{output,input}_bus_fmts() hooks if they
want to take part to this negotiation. Negotiation happens in reverse
order, starting from the last element of the chain (the one directly
connected to the display) up to the first element of the chain (the one
connected to the encoder).
During this negotiation all supported formats are tested until we find
one that works, meaning that the formats array should be in decreasing
preference order (assuming the driver has a preference order).
Note that the bus format negotiation works even if some elements in the
chain don't implement the ->atomic_get_{output,input}_bus_fmts() hooks.
In that case, the core advertises only MEDIA_BUS_FMT_FIXED and lets
the previous bridge element decide what to do (most of the time, bridge
drivers will pick a default bus format or extract this piece of
information from somewhere else, like a FW property).
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed by: Jernej Skrabec <jernej.skrabec@siol.net>
Tested-by: Jonas Karlman <jonas@kwiboo.se>
[narmstrong: fixed doc in include/drm/drm_bridge.h:69 fmt->format]
Link: https://patchwork.freedesktop.org/patch/msgid/20200106143409.32321-5-narmstrong@baylibre.com
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So that bridge drivers have a way to check/reject an atomic operation.
The drm_atomic_bridge_chain_check() (which is just a wrapper around
the ->atomic_check() hook) is called in place of
drm_bridge_chain_mode_fixup() (when ->atomic_check() is not implemented,
the core falls back on ->mode_fixup(), so the behavior should stay
the same for existing bridge drivers).
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed by: Jernej Skrabec <jernej.skrabec@siol.net>
Tested-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://patchwork.freedesktop.org/patch/msgid/20200106143409.32321-4-narmstrong@baylibre.com
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This way the drm_bridge_funcs interface is consistent with the rest of
the subsystem.
The only driver implementing those hooks (analogix DP) is patched too.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed by: Jernej Skrabec <jernej.skrabec@siol.net>
Tested-by: Jonas Karlman <jonas@kwiboo.se>
[narmstrong: renamed state as old_bridge_state in rcar_lvds_atomic_disable]
Link: https://patchwork.freedesktop.org/patch/msgid/20200106143409.32321-3-narmstrong@baylibre.com
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One of the last remaining objects to not have its atomic state.
This is being motivated by our attempt to support runtime bus-format
negotiation between elements of the bridge chain.
This patch just paves the road for such a feature by adding a new
drm_bridge_state object inheriting from drm_private_obj so we can
re-use some of the existing state initialization/tracking logic.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed by: Jernej Skrabec <jernej.skrabec@siol.net>
Tested-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://patchwork.freedesktop.org/patch/msgid/20200106143409.32321-2-narmstrong@baylibre.com
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The Qualcomm MSM8916 platform has several bus fabrics that could be
controlled and tuned dynamically according to the bandwidth demand.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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After commit fc0c209c147f ("clk: Allow parents to be specified without
string names") we can use DT or direct clk_hw pointers to specify
parents. Create a generic function that shouldn't be used very often to
encode the multitude of ways of registering a gate clk with different
parent information. Then add a bunch of wrapper macros that only pass
down what needs to be passed down to the generic function to support
this with less arguments.
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190830150923.259497-12-sboyd@kernel.org
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After commit fc0c209c147f ("clk: Allow parents to be specified without
string names") we can use DT or direct clk_hw pointers to specify
parents. Create a generic function that shouldn't be used very often to
encode the multitude of ways of registering a mux clk with different
parent information. Then add a bunch of wrapper macros that only pass
down what needs to be passed down to the generic function to support
this with less arguments.
Note: the msm drm driver passes an anonymous array through the macro
which seems to confuse my compiler. Adding a parenthesis around the
whole thing at the call site seems to fix it but it must be wrong. Maybe
it's better to split this patch and pick out the array bits there?
Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190830150923.259497-11-sboyd@kernel.org
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This kernel-doc talks about a rate for the accuracy. That's wrong.
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190830150923.259497-9-sboyd@kernel.org
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Some clk providers want to use the accuracy of the parent clk and use
the fixed rate basic type clk to do that. This requires getting the
parent clk and extracting the accuracy before registering the fixed rate
clk. Let's add a flag for this and update the clk_ops to support this.
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190830150923.259497-8-sboyd@kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Various tracing fixes:
- kbuild found missing define of MCOUNT_INSN_SIZE for various build
configs
- Initialize variable to zero as gcc thinks it is used undefined (it
really isn't but the code is subtle enough that this doesn't hurt)
- Convert from do_div() to div64_ull() to prevent potential divide by
zero
- Unregister a trace point on error path in sched_wakeup tracer
- Use signed offset for archs that can have stext not be first
- A simple indentation fix (whitespace error)"
* tag 'trace-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix indentation issue
kernel/trace: Fix do not unregister tracepoints when register sched_migrate_task fail
tracing: Change offset type to s32 in preempt/irq tracepoints
ftrace: Avoid potential division by zero in function profiler
tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined
tracing: Define MCOUNT_INSN_SIZE when not defined without direct calls
tracing: Initialize val to zero in parse_entry of inject code
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Fix up inconsistent usage of upper and lowercase letters in "Samsung"
name.
"SAMSUNG" is not an abbreviation but a regular trademarked name.
Therefore it should be written with lowercase letters starting with
capital letter.
Although advertisement materials usually use uppercase "SAMSUNG", the
lowercase version is used in all legal aspects (e.g. on Wikipedia and in
privacy/legal statements on
https://www.samsung.com/semiconductor/privacy-global/).
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A small collection of fixes here, one to make the newly added PTP
timestamping code more accurate, a few driver fixes and a fix for the
core DT binding to document the fact that we support eight wire buses"
* tag 'spi-fix-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: Document Octal mode as valid SPI bus width
spi: spi-dw: Add lock protect dw_spi rx/tx to prevent concurrent calls
spi: spi-fsl-dspi: Fix 16-bit word order in 32-bit XSPI mode
spi: Don't look at TX buffer for PTP system timestamping
spi: uniphier: Fix FIFO threshold
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC fixes from Alexandre Belloni:
"A few fixes for this cycle. The CMOS AltCentury support broke a few
platforms with a recent BIOS so I reverted it. The mt6397 fix is not
that critical but good to have. And finally, the sun6i fix repairs
WiFi and BT on a few platforms.
Summary:
- cmos: revert AltCentury support on AMD/Hygon
- mt6397: fix alarm register overwrite
- sun6i: ensure clock is working on R40"
* tag 'rtc-5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
rtc: cmos: Revert "rtc: Fix the AltCentury value on AMD/Hygon platform"
rtc: mt6397: fix alarm register overwrite
rtc: sun6i: Add support for RTC clocks on R40
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There are two USB HSIC controllers on MMP2 and MMP3.
Link: https://lore.kernel.org/r/20191220065314.237624-2-lkundrak@v3.sk
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/drivers
ARM SCMI updates for v5.6
1. Addition of multiple device support per protocol to enable use of
some procotols by multiple kernel subsystems simultaneously and
corresponding updates to the existing scmi drivers
2. Addition of trace events around the scmi transfer code to measure
any delays and capture anomalies that can also be used during
investigation of some platform firmware related issues
* tag 'scmi-updates-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
drivers: firmware: scmi: Extend SCMI transport layer by trace events
include: trace: Add SCMI header with trace events
reset: reset-scmi: Match scmi device by both name and protocol id
hwmon: (scmi-hwmon) Match scmi device by both name and protocol id
cpufreq: scmi: Match scmi device by both name and protocol id
clk: scmi: Match scmi device by both name and protocol id
firmware: arm_scmi: Skip protocol initialisation for additional devices
firmware: arm_scmi: Stash version in protocol init functions
firmware: arm_scmi: Match scmi device by both name and protocol id
firmware: arm_scmi: Add versions and identifier attributes using dev_groups
firmware: arm_scmi: Add names to scmi devices created
firmware: arm_scmi: Skip scmi mbox channel setup for addtional devices
firmware: arm_scmi: Add support for multiple device per protocol
Link: https://lore.kernel.org/r/20191230182956.GA29349@bogus
Signed-off-by: Olof Johansson <olof@lixom.net>
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Commit bc081dd6e9f6 ("kbuild: generate modules.builtin") added
infrastructure to generate modules.builtin, the list of all
builtin modules.
Basically, it works like this:
- Kconfig generates include/config/tristate.conf, the list of
tristate CONFIG options with a value in a capital letter.
- scripts/Makefile.modbuiltin makes Kbuild descend into
directories to collect the information of builtin modules.
I am not a big fan of it because Kbuild ends up with traversing
the source tree twice.
I am not sure how perfectly it should work, but this approach cannot
avoid false positives; even if the relevant CONFIG option is tristate,
some Makefiles forces obj-m to obj-y.
Some examples are:
arch/powerpc/platforms/powermac/Makefile:
obj-$(CONFIG_NVRAM:m=y) += nvram.o
net/ipv6/Makefile:
obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_hashtables.o
net/netlabel/Makefile:
obj-$(subst m,y,$(CONFIG_IPV6)) += netlabel_calipso.o
Nobody has complained about (or noticed) it, so it is probably fine to
have false positives in modules.builtin.
This commit simplifies the implementation. Let's exploit the fact
that every module has MODULE_LICENSE(). (modpost shows a warning if
MODULE_LICENSE is missing. If so, 0-day bot would already have blocked
such a module.)
I added MODULE_FILE to <linux/module.h>. When the code is being compiled
as builtin, it will be filled with the file path of the module, and
collected into modules.builtin.info. Then, scripts/link-vmlinux.sh
extracts the list of builtin modules out of it.
This new approach fixes the false-positives above, but adds another
type of false-positives; non-modular code may have MODULE_LICENSE()
by mistake. This is not a big deal, it is just the code is always
orphan. We can clean it up if we like. You can see cleanup examples by:
$ git log --grep='make.* explicitly non-modular'
To sum up, this commits deletes lots of code, but still produces almost
equivalent results. Please note it does not increase the vmlinux size at
all. As you can see in include/asm-generic/vmlinux.lds.h, the .modinfo
section is discarded in the link stage.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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The check in block_page_mkwrite that is meant to determine whether an
offset is within the inode size is off by one. This bug has been copied
into iomap_page_mkwrite and several filesystems (ubifs, ext4, f2fs,
ceph).
Fix that by introducing a new page_mkwrite_check_truncate helper that
checks for truncate and computes the bytes in the page up to EOF. Use
the helper in iomap.
NOTE from Darrick: The original patch fixed a number of filesystems, but
then there were merge conflicts with the f2fs for-next tree; a
subsequent re-submission of the patch had different btrfs changes with
no explanation; and Christoph complained that each per-fs fix should be
a separate patch. In my view that's too much risk to take on, so I
decided to drop all the hunks except for iomap, since I've actually QA'd
XFS.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
[darrick: drop everything but the iomap parts]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Adding the pitch alignment as an argument to
drm_gem_vram_fill_create_dumb() allows to align scanlines to certain
offsets. A value of 0 disables scanline pitches.
v3:
* only do power-of-2 test if pitch_align given; fails otherwise
* mgag200: call drm_gem_vram_fill_create_dumb() with pitch_align
v2:
* split of patch from related hibmc changes
* test if scanline pitch is power of 2
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191203083819.6643-4-tzimmermann@suse.de
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