| Age | Commit message (Collapse) | Author |
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pcc_chan_reg_init now checks if the register bit width is within the
list [8, 16, 32, 64] and flags error if that is not the case. Therefore
there is no need to handling invalid bit-width in both read_register
and write_register. We can drop that along with the return values for
these 2 functions.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Now that the con_priv is availvale solely for PCC mailbox controller
driver, let us use the same to save the channel specific information
in it so that we can it whenever required instead of parsing the PCCT
table entries every time in both pcc_send_data and pcc_mbox_irq.
We can now use the newly introduces PCC register bundle to simplify both
saving of channel specific information and accessing them without repeated
checks for the subspace type.
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Extended PCC subspaces introduces more registers into the PCCT. In order
to consolidate access to these registers and to keep all the details
contained in one place, let us introduce PCC register bundle that holds
the ACPI Generic Address Structure as well as the virtual address for
the same if it is mapped in the OS.
It also contains the various masks used to access the register and
the associated read, write and read-modify-write accessors.
We can also clean up the initialisations by having a helper function
for the same.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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The specification refers this register and associated bitmask as platform
interrupt acknowledge register. Let us rename it so that it is easier to
map and understand.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Now that we have all the shared memory region information populated in
the pcc_mbox_chan, let us propagate the pointer to the same as the
return value to pcc_mbox_request channel.
This eliminates the need for the individual users of PCC mailbox to
parse the PCCT subspace entries and fetch the shmem information. This
also eliminates the need for PCC mailbox controller to set con_priv to
PCCT subspace entries. This is required as con_priv is private to the
controller driver to attach private data associated with the channel and
not meant to be used by the mailbox client/users.
Let us convert all the users of pcc_mbox_{request,free}_channel to use
new interface.
Cc: Jean Delvare <jdelvare@suse.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Wolfram Sang <wsa@kernel.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Currently PCC mailbox controller sets con_priv in each channel to hold
the pointer to pcct subspace entry it corresponds to. The mailbox user
will then fetch this pointer from the channel descriptor they get when
they request for the channel. Using that pointer they then parse the
pcct entry again to fetch all the information about shared memory region.
In order to remove individual users of PCC mailbox parsing the PCCT
subspace entries to fetch same information, let us consolidate the same
in pcc mailbox controller by parsing all the shared memory region
information into a structure that can also hold the mbox_chan pointer it
represent.
This can then be used as main PCC mailbox channel pointer that we can
return as part of pcc_mbox_request_channel instead of standard mailbox
channel pointer.
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Extended PCC subspaces(Type 3 and 4) differ from generic(Type 0) and
HW-Reduced Communication(Type 1 and 2) subspace structures. However some
fields share same offsets and same type of structure can be use to
extract the fields. In order to simplify that, let us move all the doorbell
register parsing into pcc_parse_subspace_db_reg and consolidate there.
It will be easier to extend it if required within the same.
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Extended PCC subspaces(Type 3 and 4) differ from generic(Type 0) and
HW-Reduced Communication(Type 1 and 2) subspace structures. However some
fields share same offsets and same type of structure can be use to extract
the fields. In order to simplify that, let us move all the IRQ related
information parsing into pcc_parse_subspace_irq and consolidate there.
It will be easier to extend it if required within the same.
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Currently all the PCC channel specific information are stored/maintained
in global individual arrays for each of those information. It is not
scalable and not clean if we have to stash more channel specific
information. Couple of reasons to stash more information are to extend
the support to Type 3/4 PCCT subspace and also to avoid accessing the
PCCT table entries themselves each time we need the information.
This patch moves all those PCC channel specific information into a
separate structure pcc_chan_info.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Kernel doc validation script is unhappy and complains with the below set
of warnings.
| drivers/mailbox/pcc.c:179: warning: Function parameter or member 'irq'
| not described in 'pcc_mbox_irq'
| drivers/mailbox/pcc.c:179: warning: Function parameter or member 'p'
| not described in 'pcc_mbox_irq'
| drivers/mailbox/pcc.c:378: warning: expecting prototype for
| parse_pcc_subspaces(). Prototype was for parse_pcc_subspace() instead
Fix it.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Apple SoCs such as the M1 come with various co-processors. Mailboxes
are used to communicate with those. This driver adds support for
two variants of those mailboxes.
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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In the probe function, the clock IDs were pointed to local variables
which should only be used in the same code block, and any access to them
after the probing stage becomes an use-after-free case.
Since there are only limited variants of the gce clock names so far, we
can just declare them as static constants to fix the issue.
Fixes: 85dfdbfc13ea ("mailbox: cmdq: add multi-gce clocks support for mt8195")
Signed-off-by: Fei Shao <fshao@chromium.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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of_alias_get_id() may return -ENODEV which leads to illegal access to
the cmdq->clocks array.
Adding a check over alias_id to prevent the unexpected behavior.
Fixes: 85dfdbfc13ea ("mailbox: cmdq: add multi-gce clocks support for mt8195")
Signed-off-by: Fei Shao <fshao@chromium.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Because mtk_drm_crtc_update_config is not using cmdq_pkt_flush_async,
it won't have pkt->async_cb.cb anymore.
So remove the WARN_ON check of pkt->async_cb.cb at cmdq_exec_done.
Fixes: 1b6b0ce2240e ("mailbox: mtk-cmdq: Use mailbox rx_callback")
Signed-off-by: jason-jh.lin <jason-jh.lin@mediatek.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Enable QCM2290 APCS IPC support by adding the compatible. It reuses
msm8994_apcs_data.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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The msm8994 type of apcs_data is defined multiple times with different
SoC name encoded. Consolidate them on msm8994 and remove the data
duplication.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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devm_platform_ioremap_resource()
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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devm_platform_ioremap_resource()
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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devm_platform_ioremap_resource()
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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devm_platform_ioremap_resource()
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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devm_platform_ioremap_resource()
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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devm_platform_ioremap_resource()
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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devm_platform_ioremap_resource()
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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devm_platform_ioremap_resource()
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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devm_platform_ioremap_resource()
Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk driver fixes from Stephen Boyd:
"Clk driver fixes for critical issues found in the past few weeks:
- Select gdsc config so qcom sm6350 driver probes
- Fix a register offset in qcom gcc-sm6115 so the correct clk is
controlled
- Fix inverted logic in Renesas RZ/G2L .is_enabled()
- Mark some more clks critical in Renesas clk driver
- Remove a duplicate clk in the agilex driver"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: add select QCOM_GDSC for SM6350
clk: qcom: gcc-sm6115: Fix offset for hlos1_vote_turing_mmu_tbu0_gdsc
clk: socfpga: agilex: fix duplicate s2f_user0_clk
clk: renesas: rzg2l: Fix clk status function
clk: renesas: r9a07g044: Mark IA55_CLK and DMAC_ACLK critical
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix DM verity target to skip redundant processing on I/O errors.
- Fix request-based DM so that it doesn't queue request to blk-mq when
DM device is suspended.
- Fix DM core mempool NULL pointer race when completing IO.
- Make DM clone target's 'descs' array static.
* tag 'for-5.15/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: fix mempool NULL pointer race when completing IO
dm rq: don't queue request to blk-mq during DM suspend
dm clone: make array 'descs' static
dm verity: skip redundant verity_handle_err() on I/O errors
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"A small number fixes this time, mostly touching actual code:
- Add platform device for i.MX System Reset Controller (SRC) to
fix a regression caused by fw_devlink change
- A fixup for a boot regression caused by my own rework for the
Qualcomm SCM driver
- Multiple bugfixes for the Arm FFA and optee firmware drivers,
addressing problems when they are built as a loadable module
- Four dts bugfixes for the Broadcom SoC used in Raspberry pi,
addressing VEC (video encoder), MDIO bus controller
#address-cells/#size-cells, SDIO voltage and PCIe host bridge
dtc warnings"
* tag 'arm-soc-fixes-5.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: imx: register reset controller from a platform driver
iommu/arm: fix ARM_SMMU_QCOM compilation
ARM: dts: bcm2711-rpi-4-b: Fix usb's unit address
ARM: dts: bcm2711-rpi-4-b: Fix pcie0's unit address formatting
tee: optee: Fix missing devices unregister during optee_remove
ARM: dts: bcm2711-rpi-4-b: fix sd_io_1v8_reg regulator states
ARM: dts: bcm2711: fix MDIO #address- and #size-cells
ARM: dts: bcm283x: Fix VEC address for BCM2711
firmware: arm_ffa: Fix __ffa_devices_unregister
firmware: arm_ffa: Add missing remove callback to ffa_bus_type
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci fix from Bjorn Helgaas:
- Don't save msi_populate_sysfs() error code as dev->msi_irq_groups so
we don't dereference the error code as a pointer (Wang Hai)
* tag 'pci-v5.15-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI/MSI: Handle msi_populate_sysfs() errors correctly
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Add a missing device ID to a quirk list in the suspend-to-idle support
code"
* tag 'acpi-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: Include alternate AMDI0005 id in special behaviour
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix module autoloading on gpio-74x164 after a revert of OF modaliases
- fix problems with the bias setting in gpio-pca953x
- fix a use-after-free bug in gpio-mockup by using software nodes
* tag 'gpio-fixes-for-v5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mockup: Convert to use software nodes
gpio: pca953x: Improve bias setting
gpio: 74x164: Add SPI device ID table
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few small fixes.
Mostly driver specific but there's one in the core which fixes a
deadlock when adding devices on spi-mux that's triggered because
spi-mux is a SPI device which is itself a SPI controller and so can
instantiate devices when registered.
We were using a global lock to protect against reusing chip selects
but they're a per controller thing so moving the lock per controller
resolves that"
* tag 'spi-fix-v5.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi-mux: Fix false-positive lockdep splats
spi: Fix deadlock when adding SPI controllers on SPI buses
spi: bcm-qspi: clear MSPI spifie interrupt during probe
spi: spi-nxp-fspi: don't depend on a specific node name erratum workaround
spi: mediatek: skip delays if they are 0
spi: atmel: Fix PDC transfer setup bug
spi: spidev: Add SPI ID table
spi: Use 'flash' node name instead of 'spi-flash' in example
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd fix from Miquel Raynal:
"Raw NAND controller driver fix:
- Qcom: Update code word value for raw reads (QPIC v2+)"
* tag 'mtd/fixes-for-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: rawnand: qcom: Update code word value for raw read
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Pull drm fixes from Dave Airlie:
"It has a few scattered msm and i915 fixes, a few core fixes and a
mediatek feature revert.
I've had to pick a bunch of patches into this, as the drm-misc-fixes
tree had a bunch of vc4 patches I wasn't comfortable with sending to
you at least as part of this, they were delayed due to your reverts.
If it's really useful as fixes I'll do a separate pull.
Summary:
Core:
- clamp fbdev size
- edid cap blocks read to avoid out of bounds
panel:
- fix missing crc32 dependency
msm:
- Fix a new crash on dev file close if the dev file was opened when
GPU is not loaded (such as missing fw in initrd)
- Switch to single drm_sched_entity per priority level per drm_file
to unbreak multi-context userspace
- Serialize GMU access to fix GMU OOB errors
- Various error path fixes
- A couple integer overflow fixes
- Fix mdp5 cursor plane WARNs
i915:
- Fix ACPI object leak
- Fix context leak in user proto-context creation
- Fix missing i915_sw_fence_fini call
hyperv:
- hide hw pointer
nouveau:
- fix engine selection bit
r128:
- fix UML build
rcar-du:
- unconncted LVDS regression fix
mediatek:
- revert CMDQ refinement patches"
* tag 'drm-fixes-2021-10-15-1' of git://anongit.freedesktop.org/drm/drm: (34 commits)
drm/panel: olimex-lcd-olinuxino: select CRC32
drm/r128: fix build for UML
drm/nouveau/fifo: Reinstate the correct engine bit programming
drm/hyperv: Fix double mouse pointers
drm/fbdev: Clamp fbdev surface size if too large
drm/edid: In connector_bad_edid() cap num_of_ext by num_blocks read
drm/i915: Free the returned object of acpi_evaluate_dsm()
drm/i915: Fix bug in user proto-context creation that leaked contexts
drm: rcar-du: Don't create encoder for unconnected LVDS outputs
drm/msm/dsi: fix off by one in dsi_bus_clk_enable error handling
drm/msm/dsi: Fix an error code in msm_dsi_modeset_init()
drm/msm/dsi: dsi_phy_14nm: Take ready-bit into account in poll_for_ready
drm/msm/dsi/phy: fix clock names in 28nm_8960 phy
drm/msm/dpu: Fix address of SM8150 PINGPONG5 IRQ register
drm/msm: Do not run snapshot on non-DPU devices
drm/msm/a3xx: fix error handling in a3xx_gpu_init()
drm/msm/a4xx: fix error handling in a4xx_gpu_init()
drm/msm: Fix null pointer dereference on pointer edp
drm/msm/mdp5: fix cursor-related warnings
drm/msm: Avoid potential overflow in timeout_to_jiffies()
...
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Fix the following build/link error by adding a dependency on the CRC32
routines:
ld: drivers/gpu/drm/panel/panel-olimex-lcd-olinuxino.o: in function `lcd_olinuxino_probe':
panel-olimex-lcd-olinuxino.c:(.text+0x303): undefined reference to `crc32_le'
Fixes: 17fd7a9d324fd ("drm/panel: Add support for Olimex LCD-OLinuXino panel")
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211012115242.10325-1-vegard.nossum@oracle.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Fix a build error on CONFIG_UML, which does not support (provide)
wbinvd(). UML can use the generic mb() instead.
../drivers/gpu/drm/r128/ati_pcigart.c: In function ‘drm_ati_pcigart_init’:
../drivers/gpu/drm/r128/ati_pcigart.c:218:2: error: implicit declaration of function ‘wbinvd’ [-Werror=implicit-function-declaration]
wbinvd();
^~~~~~
Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: linux-um@lists.infradead.org
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211011080006.31081-1-rdunlap@infradead.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Commit 64f7c698bea9 ("drm/nouveau/fifo: add engine_id hook") replaced
fifo/chang84.c g84_fifo_chan_engine() call with an indirect call of
fifo/g84.c g84_fifo_engine_id(). The G84_FIFO_ENGN_* values returned
from the later g84_fifo_engine_id() are incremented by 1 compared to
the previous g84_fifo_chan_engine() return values.
This is fine either way for most of the code, except this one line
where an engine bit programmed into the hardware is derived from the
return value. Decrement the return value accordingly, otherwise the
wrong engine bit is programmed into the hardware and that leads to
the following failure:
nouveau 0000:01:00.0: gr: 00000030 [ILLEGAL_MTHD ILLEGAL_CLASS] ch 1 [003fbce000 DRM] subc 3 class 0000 mthd 085c data 00000420
On the following hardware:
lspci -s 01:00.0
01:00.0 VGA compatible controller: NVIDIA Corporation GT216GLM [Quadro FX 880M] (rev a2)
lspci -ns 01:00.0
01:00.0 0300: 10de:0a3c (rev a2)
Fixes: 64f7c698bea9 ("drm/nouveau/fifo: add engine_id hook")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: <stable@vger.kernel.org> # 5.12+
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Karol Herbst <kherbst@redhat.com>
Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211007214117.231472-1-marex@denx.de
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Hyper-V supports a hardware cursor feature. It is not used by Linux VM,
but the Hyper-V host still draws a point as an extra mouse pointer,
which is unwanted, especially when Xorg is running.
The hyperv_fb driver uses synthvid_send_ptr() to hide the unwanted pointer.
When the hyperv_drm driver was developed, the function synthvid_send_ptr()
was not copied from the hyperv_fb driver. Fix the issue by adding the
function into hyperv_drm.
Fixes: 76c56a5affeb ("drm/hyperv: Add DRM driver for hyperv synthetic video device")
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: Deepak Rawat <drawat.floss@gmail.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20210916193644.45650-1-decui@microsoft.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Clamp the fbdev surface size of the available maximumi height to avoid
failing to init console emulation. An example error is shown below.
bad framebuffer height 2304, should be >= 768 && <= 768
[drm] Initialized simpledrm 1.0.0 20200625 for simple-framebuffer.0 on minor 0
simple-framebuffer simple-framebuffer.0: [drm] *ERROR* fbdev: Failed to setup generic emulation (ret=-22)
This is especially a problem with drivers that have very small screen
sizes and cannot over-allocate at all.
v2:
* reduce warning level (Ville)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 11e8f5fd223b ("drm: Add simpledrm driver")
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reported-by: Amanoel Dawod <kernel@amanoeldawod.com>
Reported-by: Zoltán Kővágó <dirty.ice.hu@gmail.com>
Reported-by: Michael Stapelberg <michael+lkml@stapelberg.ch>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v5.14+
Link: https://patchwork.freedesktop.org/patch/msgid/20211005070355.7680-1-tzimmermann@suse.de
Signed-off-by: Dave Airlie <airlied@redhat.com>
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In commit e11f5bd8228f ("drm: Add support for DP 1.4 Compliance edid
corruption test") the function connector_bad_edid() started assuming
that the memory for the EDID passed to it was big enough to hold
`edid[0x7e] + 1` blocks of data (1 extra for the base block). It
completely ignored the fact that the function was passed `num_blocks`
which indicated how much memory had been allocated for the EDID.
Let's fix this by adding a bounds check.
This is important for handling the case where there's an error in the
first block of the EDID. In that case we will call
connector_bad_edid() without having re-allocated memory based on
`edid[0x7e]`.
Fixes: e11f5bd8228f ("drm: Add support for DP 1.4 Compliance edid corruption test")
Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211005192905.v2.1.Ib059f9c23c2611cb5a9d760e7d0a700c1295928d@changeid
Signed-off-by: Dave Airlie <airlied@redhat.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-fixes
Mediatek DRM Fixes for Linux 5.15
1. Revert series "CMDQ refinement of Mediatek DRM driver"
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211013235044.5488-1-chunkuang.hu@kernel.org
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.15-rc6:
- Fix ACPI object leak
- Fix context leak in user proto-context creation
- Fix missing i915_sw_fence_fini call
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87zgrbvgls.fsf@intel.com
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Quite calm.
The noisy DSA driver (embedded switches) changes, and adjustment to
IPv6 IOAM behavior add to diffstat's bottom line but are not scary.
Current release - regressions:
- af_unix: rename UNIX-DGRAM to UNIX to maintain backwards
compatibility
- procfs: revert "add seq_puts() statement for dev_mcast", minor
format change broke user space
Current release - new code bugs:
- dsa: fix bridge_num not getting cleared after ports leaving the
bridge, resource leak
- dsa: tag_dsa: send packets with TX fwd offload from VLAN-unaware
bridges using VID 0, prevent packet drops if pvid is removed
- dsa: mv88e6xxx: keep the pvid at 0 when VLAN-unaware, prevent HW
getting confused about station to VLAN mapping
Previous releases - regressions:
- virtio-net: fix for skb_over_panic inside big mode
- phy: do not shutdown PHYs in READY state
- dsa: mv88e6xxx: don't use PHY_DETECT on internal PHY's, fix link
LED staying lit after ifdown
- mptcp: fix possible infinite wait on recvmsg(MSG_WAITALL)
- mqprio: Correct stats in mqprio_dump_class_stats()
- ice: fix deadlock for Tx timestamp tracking flush
- stmmac: fix feature detection on old hardware
Previous releases - always broken:
- sctp: account stream padding length for reconf chunk
- icmp: fix icmp_ext_echo_iio parsing in icmp_build_probe()
- isdn: cpai: check ctr->cnr to avoid array index out of bound
- isdn: mISDN: fix sleeping function called from invalid context
- nfc: nci: fix potential UAF of rf_conn_info object
- dsa: microchip: prevent ksz_mib_read_work from kicking back in
after it's canceled in .remove and crashing
- dsa: mv88e6xxx: isolate the ATU databases of standalone and bridged
ports
- dsa: sja1105, ocelot: break circular dependency between switch and
tag drivers
- dsa: felix: improve timestamping in presence of packe loss
- mlxsw: thermal: fix out-of-bounds memory accesses
Misc:
- ipv6: ioam: move the check for undefined bits to improve
interoperability"
* tag 'net-5.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (60 commits)
icmp: fix icmp_ext_echo_iio parsing in icmp_build_probe
MAINTAINERS: Update the devicetree documentation path of imx fec driver
sctp: account stream padding length for reconf chunk
mlxsw: thermal: Fix out-of-bounds memory accesses
ethernet: s2io: fix setting mac address during resume
NFC: digital: fix possible memory leak in digital_in_send_sdd_req()
NFC: digital: fix possible memory leak in digital_tg_listen_mdaa()
nfc: fix error handling of nfc_proto_register()
Revert "net: procfs: add seq_puts() statement for dev_mcast"
net: encx24j600: check error in devm_regmap_init_encx24j600
net: korina: select CRC32
net: arc: select CRC32
net: dsa: felix: break at first CPU port during init and teardown
net: dsa: tag_ocelot_8021q: fix inability to inject STP BPDUs into BLOCKING ports
net: dsa: felix: purge skb from TX timestamping queue if it cannot be sent
net: dsa: tag_ocelot_8021q: break circular dependency with ocelot switch lib
net: dsa: tag_ocelot: break circular dependency with ocelot switch lib driver
net: mscc: ocelot: cross-check the sequence id from the timestamp FIFO with the skb PTP header
net: mscc: ocelot: deny TX timestamping of non-PTP packets
net: mscc: ocelot: warn when a PTP IRQ is raised for an unknown skb
...
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Currently, mlxsw allows cooling states to be set above the maximum
cooling state supported by the driver:
# cat /sys/class/thermal/thermal_zone2/cdev0/type
mlxsw_fan
# cat /sys/class/thermal/thermal_zone2/cdev0/max_state
10
# echo 18 > /sys/class/thermal/thermal_zone2/cdev0/cur_state
# echo $?
0
This results in out-of-bounds memory accesses when thermal state
transition statistics are enabled (CONFIG_THERMAL_STATISTICS=y), as the
transition table is accessed with a too large index (state) [1].
According to the thermal maintainer, it is the responsibility of the
driver to reject such operations [2].
Therefore, return an error when the state to be set exceeds the maximum
cooling state supported by the driver.
To avoid dead code, as suggested by the thermal maintainer [3],
partially revert commit a421ce088ac8 ("mlxsw: core: Extend cooling
device with cooling levels") that tried to interpret these invalid
cooling states (above the maximum) in a special way. The cooling levels
array is not removed in order to prevent the fans going below 20% PWM,
which would cause them to get stuck at 0% PWM.
[1]
BUG: KASAN: slab-out-of-bounds in thermal_cooling_device_stats_update+0x271/0x290
Read of size 4 at addr ffff8881052f7bf8 by task kworker/0:0/5
CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.15.0-rc3-custom-45935-gce1adf704b14 #122
Hardware name: Mellanox Technologies Ltd. "MSN2410-CB2FO"/"SA000874", BIOS 4.6.5 03/08/2016
Workqueue: events_freezable_power_ thermal_zone_device_check
Call Trace:
dump_stack_lvl+0x8b/0xb3
print_address_description.constprop.0+0x1f/0x140
kasan_report.cold+0x7f/0x11b
thermal_cooling_device_stats_update+0x271/0x290
__thermal_cdev_update+0x15e/0x4e0
thermal_cdev_update+0x9f/0xe0
step_wise_throttle+0x770/0xee0
thermal_zone_device_update+0x3f6/0xdf0
process_one_work+0xa42/0x1770
worker_thread+0x62f/0x13e0
kthread+0x3ee/0x4e0
ret_from_fork+0x1f/0x30
Allocated by task 1:
kasan_save_stack+0x1b/0x40
__kasan_kmalloc+0x7c/0x90
thermal_cooling_device_setup_sysfs+0x153/0x2c0
__thermal_cooling_device_register.part.0+0x25b/0x9c0
thermal_cooling_device_register+0xb3/0x100
mlxsw_thermal_init+0x5c5/0x7e0
__mlxsw_core_bus_device_register+0xcb3/0x19c0
mlxsw_core_bus_device_register+0x56/0xb0
mlxsw_pci_probe+0x54f/0x710
local_pci_probe+0xc6/0x170
pci_device_probe+0x2b2/0x4d0
really_probe+0x293/0xd10
__driver_probe_device+0x2af/0x440
driver_probe_device+0x51/0x1e0
__driver_attach+0x21b/0x530
bus_for_each_dev+0x14c/0x1d0
bus_add_driver+0x3ac/0x650
driver_register+0x241/0x3d0
mlxsw_sp_module_init+0xa2/0x174
do_one_initcall+0xee/0x5f0
kernel_init_freeable+0x45a/0x4de
kernel_init+0x1f/0x210
ret_from_fork+0x1f/0x30
The buggy address belongs to the object at ffff8881052f7800
which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 1016 bytes inside of
1024-byte region [ffff8881052f7800, ffff8881052f7c00)
The buggy address belongs to the page:
page:0000000052355272 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1052f0
head:0000000052355272 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x200000000010200(slab|head|node=0|zone=2)
raw: 0200000000010200 ffffea0005034800 0000000300000003 ffff888100041dc0
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8881052f7a80: 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc fc
ffff8881052f7b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8881052f7b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff8881052f7c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8881052f7c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[2] https://lore.kernel.org/linux-pm/9aca37cb-1629-5c67-1895-1fdc45c0244e@linaro.org/
[3] https://lore.kernel.org/linux-pm/af9857f2-578e-de3a-e62b-6baff7e69fd4@linaro.org/
CC: Daniel Lezcano <daniel.lezcano@linaro.org>
Fixes: a50c1e35650b ("mlxsw: core: Implement thermal zone")
Fixes: a421ce088ac8 ("mlxsw: core: Extend cooling device with cooling levels")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20211012174955.472928-1-idosch@idosch.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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After recent cleanups, gcc started warning about a suspicious
memcpy() call during the s2io_io_resume() function:
In function '__dev_addr_set',
inlined from 'eth_hw_addr_set' at include/linux/etherdevice.h:318:2,
inlined from 's2io_set_mac_addr' at drivers/net/ethernet/neterion/s2io.c:5205:2,
inlined from 's2io_io_resume' at drivers/net/ethernet/neterion/s2io.c:8569:7:
arch/x86/include/asm/string_32.h:182:25: error: '__builtin_memcpy' accessing 6 bytes at offsets 0 and 2 overlaps 4 bytes at offset 2 [-Werror=restrict]
182 | #define memcpy(t, f, n) __builtin_memcpy(t, f, n)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/netdevice.h:4648:9: note: in expansion of macro 'memcpy'
4648 | memcpy(dev->dev_addr, addr, len);
| ^~~~~~
What apparently happened is that an old cleanup changed the calling
conventions for s2io_set_mac_addr() from taking an ethernet address
as a character array to taking a struct sockaddr, but one of the
callers was not changed at the same time.
Change it to instead call the low-level do_s2io_prog_unicast() function
that still takes the old argument type.
Fixes: 2fd376884558 ("S2io: Added support set_mac_address driver entry point")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20211013143613.2049096-1-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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io_mutex is taken by spi_setup() and spi-mux's .setup() callback calls
spi_setup() which results in a nested lock of io_mutex.
add_lock is taken by spi_add_device(). The device_add() call in there
can result in calling spi-mux's .probe() callback which registers its
own spi controller which in turn results in spi_add_device() being
called again.
To fix this initialize the controller's locks already in
spi_alloc_controller() to give spi_mux_probe() a chance to set the
lockdep subclass.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20211013133710.2679703-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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Currently we have a global spi_add_lock which we take when adding new
devices so that we can check that we're not trying to reuse a chip
select that's already controlled. This means that if the SPI device is
itself a SPI controller and triggers the instantiation of further SPI
devices we trigger a deadlock as we try to register and instantiate
those devices while in the process of doing so for the parent controller
and hence already holding the global spi_add_lock. Since we only care
about concurrency within a single SPI bus move the lock to be per
controller, avoiding the deadlock.
This can be easily triggered in the case of spi-mux.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
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