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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"This is the first half of the driver changes:
- A treewide interface change to the "syscore" operations for power
management, as a preparation for future Tegra specific changes
- Reset controller updates with added drivers for LAN969x, eic770 and
RZ/G3S SoCs
- Protection of system controller registers on Renesas and Google
SoCs, to prevent trivially triggering a system crash from e.g.
debugfs access
- soc_device identification updates on Nvidia, Exynos and Mediatek
- debugfs support in the ST STM32 firewall driver
- Minor updates for SoC drivers on AMD/Xilinx, Renesas, Allwinner, TI
- Cleanups for memory controller support on Nvidia and Renesas"
* tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (114 commits)
memory: tegra186-emc: Fix missing put_bpmp
Documentation: reset: Remove reset_controller_add_lookup()
reset: fix BIT macro reference
reset: rzg2l-usbphy-ctrl: Fix a NULL vs IS_ERR() bug in probe
reset: th1520: Support reset controllers in more subsystems
reset: th1520: Prepare for supporting multiple controllers
dt-bindings: reset: thead,th1520-reset: Add controllers for more subsys
dt-bindings: reset: thead,th1520-reset: Remove non-VO-subsystem resets
reset: remove legacy reset lookup code
clk: davinci: psc: drop unused reset lookup
reset: rzg2l-usbphy-ctrl: Add support for RZ/G3S SoC
reset: rzg2l-usbphy-ctrl: Add support for USB PWRRDY
dt-bindings: reset: renesas,rzg2l-usbphy-ctrl: Document RZ/G3S support
reset: eswin: Add eic7700 reset driver
dt-bindings: reset: eswin: Documentation for eic7700 SoC
reset: sparx5: add LAN969x support
dt-bindings: reset: microchip: Add LAN969x support
soc: rockchip: grf: Add select correct PWM implementation on RK3368
soc/tegra: pmc: Add USB wake events for Tegra234
amba: tegra-ahb: Fix device leak on SMMU enable
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Commit a52ddb98a674 ("memory: tegra186-emc: Simplify and handle deferred
probe with dev_err_probe()") accidently dropped a call to 'put_bpmp' to
release a handle to the BPMP when getting the EMC clock fails. Fix this
by restoring the 'goto put_bpmp' if devm_clk_get() fails.
Fixes: a52ddb98a674 ("memory: tegra186-emc: Simplify and handle deferred probe with dev_err_probe()")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://patch.msgid.link/20251106190550.1776974-1-jonathanh@nvidia.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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The original commit had typos for two of the memory client ids. Fix them
to reference the correct bindings.
Fixes: 3804cef4c597 ("memory: tegra210: Use bindings for client ids")
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Link: https://patch.msgid.link/20251021-t210-mem-clientid-fixup-v1-1-5094946faa31@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Replace "tegra_emc" with "tegra30_emc" in all functions to:
1. Avoid name clashing with other Tegra EMC drivers which makes it
easier to jump to function definitions,
2. Decode the calltraces a bit easier,
3. Unify with other Tegra MC and EMC drivers, which use the SoC model
prefixes.
No functional impact.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Replace "tegra_emc" with "tegra20_emc" in all functions to:
1. Avoid name clashing with other Tegra EMC drivers which makes it
easier to jump to function definitions,
2. Decode the calltraces a bit easier,
3. Unify with other Tegra MC and EMC drivers, which use the SoC model
prefixes.
No functional impact.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Replace "tegra_emc" with "tegra186_emc" in all functions to:
1. Avoid name clashing with other Tegra EMC drivers which makes it
easier to jump to function definitions,
2. Decode the calltraces a bit easier,
3. Unify with other Tegra MC and EMC drivers, which use the SoC model
prefixes.
No functional impact.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Replace "tegra_emc" with "tegra124_emc" in all functions to:
1. Avoid name clashing with other Tegra EMC drivers which makes it
easier to jump to function definitions,
2. Decode the calltraces a bit easier,
3. Unify with other Tegra MC and EMC drivers, which use the SoC model
prefixes.
No functional impact.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Certain calls, like clk_get, can cause probe deferral and driver should
handle it. Use dev_err_probe() to fix that and also change other
non-deferred errors cases to make the code simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Certain calls, like clk_get, can cause probe deferral and driver should
handle it. Use dev_err_probe() to fix that and also change other
non-deferred errors cases to make the code simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Certain calls, like clk_get, can cause probe deferral and driver should
handle it. Use dev_err_probe() to fix that and also change other
non-deferred errors cases to make the code simpler.
Also fix missing new line in error message of devm_devfreq_add_device().
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Certain calls, like clk_get, can cause probe deferral and driver should
handle it. Use dev_err_probe() to fix that and also change other
non-deferred errors cases to make the code simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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icc_node_create() is alloc-like function, so no need to print error
messages on its failure. Dropping one label makes the code a bit
simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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icc_node_create() is alloc-like function, so no need to print error
messages on its failure. Dropping one label makes the code a bit
simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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icc_node_create() is alloc-like function, so no need to print error
messages on its failure. Dropping one label makes the code a bit
simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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icc_node_create() is alloc-like function, so no need to print error
messages on its failure. Dropping one label makes the code a bit
simpler.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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emc_init() returns always success, so just drop the return value to
simplify it.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Since the related binding is being added, use that for the client ids
instead of hardcoded magic numbers.
Signed-off-by: Aaron Kling <webgeek1234@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add support to enable Memory Controller (MC) and External Memory
Controller (EMC) drivers for Tegra264. The nodes for MC and EMC are
mostly the same as Tegra234 but differ in number of channels and
interrupt numbers.
The patch also adds the bandwidth manager definitions required for
Tegra264 and uses them to populate the memory client table. All of
these are needed to properly enable memory interconnect (ICC) support.
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250709222147.3758356-3-thierry.reding@gmail.com
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Move this API to the canonical timer_*() namespace.
[ tglx: Redone against pre rc1 ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com
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Enabling the compile test should not cause automatic enabling of all
drivers.
Link: https://lore.kernel.org/r/20250404111703.235455-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree
over and remove the historical wrapper inlines.
Conversion was done with coccinelle plus manual fixups where necessary.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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platform_get_irq() already prints error message, so duplicating it is
redundant. The message about "need of updating DT" makes no sense,
because this code was there since beginning.
Link: https://lore.kernel.org/r/20250104141430.115031-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into soc/drivers
Memory controller drivers for v6.14
1. OMAP GPMC: Cleanup dead code.
2. Tegra20 EMC: Fix OF reference counting when iterating over
emc-tables.
* tag 'memory-controller-drv-6.14' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
memory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code()
memory: omap-gpmc: deadcode a pair of functions
Link: https://lore.kernel.org/r/20241231133534.136771-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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tegra_emc_find_node_by_ram_code()
As of_find_node_by_name() release the reference of the argument device
node, tegra_emc_find_node_by_ram_code() releases some device nodes while
still in use, resulting in possible UAFs. According to the bindings and
the in-tree DTS files, the "emc-tables" node is always device's child
node with the property "nvidia,use-ram-code", and the "lpddr2" node is a
child of the "emc-tables" node. Thus utilize the
for_each_child_of_node() macro and of_get_child_by_name() instead of
of_find_node_by_name() to simplify the code.
This bug was found by an experimental verification tool that I am
developing.
Fixes: 96e5da7c8424 ("memory: tegra: Introduce Tegra20 EMC driver")
Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
Link: https://lore.kernel.org/r/20241217091434.1993597-1-joe@pf.is.s.u-tokyo.ac.jp
Link: https://lore.kernel.org/r/20241218024415.2494267-3-joe@pf.is.s.u-tokyo.ac.jp
[krzysztof: applied v1, adjust the commit msg to incorporate v2 parts]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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The continual trickle of small conversion patches is grating on me, and
is really not helping. Just get rid of the 'remove_new' member
function, which is just an alias for the plain 'remove', and had a
comment to that effect:
/*
* .remove_new() is a relic from a prototype conversion of .remove().
* New drivers are supposed to implement .remove(). Once all drivers are
* converted to not use .remove_new any more, it will be dropped.
*/
This was just a tree-wide 'sed' script that replaced '.remove_new' with
'.remove', with some care taken to turn a subsequent tab into two tabs
to make things line up.
I did do some minimal manual whitespace adjustment for places that used
spaces to line things up.
Then I just removed the old (sic) .remove_new member function, and this
is the end result. No more unnecessary conversion noise.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240816-cleanup-h-of-node-put-memory-v2-10-9eed0ee16b78@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240816-cleanup-h-of-node-put-memory-v2-9-9eed0ee16b78@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240816-cleanup-h-of-node-put-memory-v2-8-9eed0ee16b78@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240816-cleanup-h-of-node-put-memory-v2-7-9eed0ee16b78@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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to_tegra186_emc() is not used, W=1 builds:
tegra186-emc.c:38:36: error: unused function 'to_tegra186_emc' [-Werror,-Wunused-function]
Fixes: 9a38cb27668e ("memory: tegra: Add interconnect support for DRAM scaling in Tegra234")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240812123055.124123-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Further streamline this function by moving the delay post-processing
to the callers, leaving it only with the task of returning the measured
delay values.
Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Link: https://lore.kernel.org/r/20240704-tegra210_emcfreq-v4-7-3e450503c555@tecnico.ulisboa.pt
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Separate the comparison/updating of the measured delay values with the
values currently programmed into a separate function to simplify the
code.
Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Link: https://lore.kernel.org/r/20240704-tegra210_emcfreq-v4-6-3e450503c555@tecnico.ulisboa.pt
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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As the current form of this function in a completely unrolled loop
over the RAM channels roll it up two levels to improve readability.
Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Link: https://lore.kernel.org/r/20240704-tegra210_emcfreq-v4-5-3e450503c555@tecnico.ulisboa.pt
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Convert the macros that manipulate the delay values to interpret their
index parameter as an integer to allow the introduction of loops.
Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Link: https://lore.kernel.org/r/20240704-tegra210_emcfreq-v4-4-3e450503c555@tecnico.ulisboa.pt
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Fix incorrect comment on periodic_compensation_handler() as the call
update_clock_tree_delay() with DVFS_UPDATE is responsible for dividing
the samples accumulated up to that point and comparing the computed
values with the currently programmed ones. While at it fix the
indentation of a nearby comment.
Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Link: https://lore.kernel.org/r/20240704-tegra210_emcfreq-v4-3-3e450503c555@tecnico.ulisboa.pt
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Move the calls that instruct the RAM to capture its clock tree delays
to update_clock_tree_delay() in order to avoid code duplication.
Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Link: https://lore.kernel.org/r/20240704-tegra210_emcfreq-v4-2-3e450503c555@tecnico.ulisboa.pt
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Prior to calling periodic_compensation_handler() the code is doing one
extra DRAM delay reading which is unnecessary as this is already done
in periodic_compensation_handler(), so remove these extra calls.
Signed-off-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Link: https://lore.kernel.org/r/20240704-tegra210_emcfreq-v4-1-3e450503c555@tecnico.ulisboa.pt
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc and other driver subsystem updates from Greg KH:
"Here is the big set of char/misc and a number of other driver
subsystem updates for 6.9-rc1. Included in here are:
- IIO driver updates, loads of new ones and evolution of existing ones
- coresight driver updates
- const cleanups for many driver subsystems
- speakup driver additions
- platform remove callback void cleanups
- mei driver updates
- mhi driver updates
- cdx driver updates for MSI interrupt handling
- nvmem driver updates
- other smaller driver updates and cleanups, full details in the
shortlog
All of these have been in linux-next for a long time with no reported
issue, other than a build warning for the speakup driver"
The build warning hits clang and is a gcc (and C23) extension, and is
fixed up in the merge.
Link: https://lore.kernel.org/all/20240321134831.GA2762840@dev-arch.thelio-3990X/
* tag 'char-misc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (279 commits)
binder: remove redundant variable page_addr
uio_dmem_genirq: UIO_MEM_DMA_COHERENT conversion
uio_pruss: UIO_MEM_DMA_COHERENT conversion
cnic,bnx2,bnx2x: use UIO_MEM_DMA_COHERENT
uio: introduce UIO_MEM_DMA_COHERENT type
cdx: add MSI support for CDX bus
pps: use cflags-y instead of EXTRA_CFLAGS
speakup: Add /dev/synthu device
speakup: Fix 8bit characters from direct synth
parport: sunbpp: Convert to platform remove callback returning void
parport: amiga: Convert to platform remove callback returning void
char: xillybus: Convert to platform remove callback returning void
vmw_balloon: change maintainership
MAINTAINERS: change the maintainer for hpilo driver
char: xilinx_hwicap: Fix NULL vs IS_ERR() bug
hpet: remove hpets::hp_clocksource
platform: goldfish: move the separate 'default' propery for CONFIG_GOLDFISH
char: xilinx_hwicap: drop casting to void in dev_set_drvdata
greybus: move is_gb_* functions out of greybus.h
greybus: Remove usage of the deprecated ida_simple_xx() API
...
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The xlate callbacks are supposed to translate of_phandle_args to proper
provider without modifying the of_phandle_args. Make the argument
pointer to const for code safety and readability.
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Thierry Reding <treding@nvidia.com> # Tegra
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Alim Akhtar <alim.akhtar@samsung.com> # Samsung
Link: https://lore.kernel.org/r/20240220072213.35779-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Fix the indentation of the '.regs' member for the Tegra234 NVJPG memory
client.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20240220124430.19072-3-jonathanh@nvidia.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add the BPMP IDs and ICC type information for the Tegra234 DLA memory
clients.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20240220124430.19072-2-jonathanh@nvidia.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Some of the names for the Tegra234 DLA clients are not unique and do not
align with the name of the client ID definitions. Therefore, it is not
possible to determine the exact DLA client from messages that print the
client name. Fix this by correcting the DLA memory client names for
Tegra234 to align with the name of the corresponding memory client ID.
Note that although the client names are also used by the interconnect
framework, interconnect support for the DLA clients has not been added
and so this issue does not impact the interconnect support.
Fixes: 5cd24ca0985f ("memory: tegra: Add DLA clients for Tegra234")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20240220124430.19072-1-jonathanh@nvidia.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
"Core changes:
- Fix race conditions in device probe path
- Retire IOMMU bus_ops
- Support for passing custom allocators to page table drivers
- Clean up Kconfig around IOMMU_SVA
- Support for sharing SVA domains with all devices bound to a mm
- Firmware data parsing cleanup
- Tracing improvements for iommu-dma code
- Some smaller fixes and cleanups
ARM-SMMU drivers:
- Device-tree binding updates:
- Add additional compatible strings for Qualcomm SoCs
- Document Adreno clocks for Qualcomm's SM8350 SoC
- SMMUv2:
- Implement support for the ->domain_alloc_paging() callback
- Ensure Secure context is restored following suspend of Qualcomm
SMMU implementation
- SMMUv3:
- Disable stalling mode for the "quiet" context descriptor
- Minor refactoring and driver cleanups
Intel VT-d driver:
- Cleanup and refactoring
AMD IOMMU driver:
- Improve IO TLB invalidation logic
- Small cleanups and improvements
Rockchip IOMMU driver:
- DT binding update to add Rockchip RK3588
Apple DART driver:
- Apple M1 USB4/Thunderbolt DART support
- Cleanups
Virtio IOMMU driver:
- Add support for iotlb_sync_map
- Enable deferred IO TLB flushes"
* tag 'iommu-updates-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (66 commits)
iommu: Don't reserve 0-length IOVA region
iommu/vt-d: Move inline helpers to header files
iommu/vt-d: Remove unused vcmd interfaces
iommu/vt-d: Remove unused parameter of intel_pasid_setup_pass_through()
iommu/vt-d: Refactor device_to_iommu() to retrieve iommu directly
iommu/sva: Fix memory leak in iommu_sva_bind_device()
dt-bindings: iommu: rockchip: Add Rockchip RK3588
iommu/dma: Trace bounce buffer usage when mapping buffers
iommu/arm-smmu: Convert to domain_alloc_paging()
iommu/arm-smmu: Pass arm_smmu_domain to internal functions
iommu/arm-smmu: Implement IOMMU_DOMAIN_BLOCKED
iommu/arm-smmu: Convert to a global static identity domain
iommu/arm-smmu: Reorganize arm_smmu_domain_add_master()
iommu/arm-smmu-v3: Remove ARM_SMMU_DOMAIN_NESTED
iommu/arm-smmu-v3: Master cannot be NULL in arm_smmu_write_strtab_ent()
iommu/arm-smmu-v3: Add a type for the STE
iommu/arm-smmu-v3: disable stall for quiet_cd
iommu/qcom: restore IOMMU state if needed
iommu/arm-smmu-qcom: Add QCM2290 MDSS compatible
iommu/arm-smmu-qcom: Add missing GMU entry to match table
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/3e2951685dddbc0ab32244916a9849af206a6730.1702822744.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/8481c7e7d5b024325e6b1aabf7cb3a3707d211d6.1702822744.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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This API was defined to formalize the access to internal iommu details on
some Tegra SOCs, but a few callers got missed. Add them.
The helper already masks by 0xFFFF so remove this code from the callers.
Suggested-by: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/7-v2-16e4def25ebb+820-iommu_fwspec_p1_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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tegra186_mc_client_sid_override() is protected under CONFIG_IOMMU_API.
Call to this function is being made from tegra186_mc_resume() without
any protection which is leading to build failure when CONFIG_IOMMU_API
is not set. Fix this by protecting SID override function call from
tegra186_mc_resume() under CONFIG_IOMMU_API.
Fixes: fe3b082a6eb8 ("memory: tegra: Add SID override programming for MC clients")
Signed-off-by: Ashish Mhetre <amhetre@nvidia.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Link: https://lore.kernel.org/r/20231205060045.7985-1-amhetre@nvidia.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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There are few MC clients where SID security and override register
offsets are not specified like "sw_cluster0" in tegra234. Don't program
SID override for such clients because it leads to access to invalid
addresses.
Signed-off-by: Ashish Mhetre <amhetre@nvidia.com>
Link: https://lore.kernel.org/r/20231107112713.21399-2-amhetre@nvidia.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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For some devices the bootloader/firmware may set up the device in
bypass. Memory clients like display needs kernel to program SID after
resume because bootloader/firmware programs the SID of display device to
bypass. In order to make sure that kernel IOMMU mappings for these
devices work after resume, add SID override programming support for all
memory clients on memory controller resume.
This partially reverts 'commit ef86b2c2807f ("memory: tegra: Remove
clients SID override programming")'
Signed-off-by: Ashish Mhetre <amhetre@nvidia.com>
Link: https://lore.kernel.org/r/20231107112713.21399-1-amhetre@nvidia.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
"Core changes:
- Make default-domains mandatory for all IOMMU drivers
- Remove group refcounting
- Add generic_single_device_group() helper and consolidate drivers
- Cleanup map/unmap ops
- Scaling improvements for the IOVA rcache depot
- Convert dart & iommufd to the new domain_alloc_paging()
ARM-SMMU:
- Device-tree binding update:
- Add qcom,sm7150-smmu-v2 for Adreno on SM7150 SoC
- SMMUv2:
- Support for Qualcomm SDM670 (MDSS) and SM7150 SoCs
- SMMUv3:
- Large refactoring of the context descriptor code to move the CD
table into the master, paving the way for '->set_dev_pasid()'
support on non-SVA domains
- Minor cleanups to the SVA code
Intel VT-d:
- Enable debugfs to dump domain attached to a pasid
- Remove an unnecessary inline function
AMD IOMMU:
- Initial patches for SVA support (not complete yet)
S390 IOMMU:
- DMA-API conversion and optimized IOTLB flushing
And some smaller fixes and improvements"
* tag 'iommu-updates-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (102 commits)
iommu/dart: Remove the force_bypass variable
iommu/dart: Call apple_dart_finalize_domain() as part of alloc_paging()
iommu/dart: Convert to domain_alloc_paging()
iommu/dart: Move the blocked domain support to a global static
iommu/dart: Use static global identity domains
iommufd: Convert to alloc_domain_paging()
iommu/vt-d: Use ops->blocked_domain
iommu/vt-d: Update the definition of the blocking domain
iommu: Move IOMMU_DOMAIN_BLOCKED global statics to ops->blocked_domain
Revert "iommu/vt-d: Remove unused function"
iommu/amd: Remove DMA_FQ type from domain allocation path
iommu: change iommu_map_sgtable to return signed values
iommu/virtio: Add __counted_by for struct viommu_request and use struct_size()
iommu/vt-d: debugfs: Support dumping a specified page table
iommu/vt-d: debugfs: Create/remove debugfs file per {device, pasid}
iommu/vt-d: debugfs: Dump entry pointing to huge page
iommu/vt-d: Remove unused function
iommu/arm-smmu-v3-sva: Remove bond refcount
iommu/arm-smmu-v3-sva: Remove unused iommu_sva handle
iommu/arm-smmu-v3: Rename cdcfg to cd_table
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