1107451 Commits

Author SHA1 Message Date
Lorenzo Bianconi
993b2d0ea0 sample: bpf: xdp_router_ipv4: Allow the kernel to send arp requests
[ Upstream commit 200a89e3e88786b52bc1dd5f26a310c097f4c6a7 ]

Forward the packet to the kernel if the gw router mac address is missing
in to trigger ARP discovery.

Fixes: 85bf1f51691c ("samples: bpf: Convert xdp_router_ipv4 to XDP samples helper")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/60bde5496d108089080504f58199bcf1143ea938.1653471558.git.lorenzo@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:25 +02:00
Yuntao Wang
a838592a9c selftests/bpf: Fix test_run logic in fexit_stress.c
[ Upstream commit eb7b36ce47f830a01ad9405e673b563cc3638d5d ]

In the commit da00d2f117a0 ("bpf: Add test ops for BPF_PROG_TYPE_TRACING"),
the bpf_fentry_test1 function was moved into bpf_prog_test_run_tracing(),
which is the test_run function of the tracing BPF programs.

Thus calling 'bpf_prog_test_run_opts(filter_fd, &topts)' will not trigger
bpf_fentry_test1 function as filter_fd is a sk_filter BPF program.

Fix it by replacing filter_fd with fexit_fd in the bpf_prog_test_run_opts()
function.

Fixes: da00d2f117a0 ("bpf: Add test ops for BPF_PROG_TYPE_TRACING")
Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220521151329.648013-1-ytcoode@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:25 +02:00
Javier Martinez Canillas
460a4a850b drm/ssd130x: Only define a SPI device ID table when built as a module
[ Upstream commit 01ece65132e2980ece4eca91105dfc9eed504881 ]

The kernel test robot reports a compile warning due the ssd130x_spi_table
variable being defined but not used. This happen when ssd130x-spi driver
is built-in instead of being built as a module, i.e:

  CC      drivers/gpu/drm/solomon/ssd130x-spi.o
  AR      drivers/base/firmware_loader/built-in.a
  AR      drivers/base/built-in.a
  CC      kernel/trace/trace.o
drivers/gpu/drm/solomon/ssd130x-spi.c:155:35: warning: ‘ssd130x_spi_table’ defined but not used [-Wunused-const-variable=]
  155 | static const struct spi_device_id ssd130x_spi_table[] = {
      |                                   ^~~~~~~~~~~~~~~~~

The driver shouldn't need a SPI device ID table and only have an OF device
ID table, but the former is needed to workaround an issue in the SPI core.
This always reports a MODALIAS of the form "spi:<device>" even for devices
registered through Device Trees.

But the table is only needed when the driver built as a module to populate
the .ko alias info. It's not needed when the driver is built-in the kernel.

Fixes: 74373977d2ca ("drm/solomon: Add SSD130x OLED displays SPI support")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220530140246.742469-1-javierm@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:25 +02:00
Yunhao Tian
4815d57050 drm/mipi-dbi: align max_chunk to 2 in spi_transfer
[ Upstream commit 435c249008cba04ed6a7975e9411f3b934620204 ]

In __spi_validate, there's a validation that no partial transfers
are accepted (xfer->len % w_size must be zero). When
max_chunk is not a multiple of bpw (e.g. max_chunk = 65535,
bpw = 16), the transfer will be rejected.

This patch aligns max_chunk to 2 bytes (the maximum value of bpw is 16),
so that no partial transfer will occur.

Fixes: d23d4d4dac01 ("drm/tinydrm: Move tinydrm_spi_transfer()")

Signed-off-by: Yunhao Tian <t123yh.xyz@gmail.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220510030219.2486687-1-t123yh.xyz@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:25 +02:00
Johan Hovold
313aca98c5 ath11k: fix IRQ affinity warning on shutdown
[ Upstream commit 3bd0c69653ac636eae8872aacdcd4156f772f928 ]

Make sure to clear the IRQ affinity hint also on shutdown to avoid
triggering a WARN_ON_ONCE() in __free_irq() when stopping MHI while
using a single MSI vector.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3

Fixes: e94b07493da3 ("ath11k: Set IRQ affinity to CPU0 in case of one MSI vector")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220523143258.24818-1-johan+linaro@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:25 +02:00
Johan Hovold
307ce58270 ath11k: fix netdev open race
[ Upstream commit d4ba1ff87b17e81686ada8f429300876f55f95ad ]

Make sure to allocate resources needed before registering the device.

This specifically avoids having a racing open() trigger a BUG_ON() in
mod_timer() when ath11k_mac_op_start() is called before the
mon_reap_timer as been set up.

I did not see this issue with next-20220310, but I hit it on every probe
with next-20220511. Perhaps some timing changed in between.

Here's the backtrace:

[   51.346947] kernel BUG at kernel/time/timer.c:990!
[   51.346958] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
...
[   51.578225] Call trace:
[   51.583293]  __mod_timer+0x298/0x390
[   51.589518]  mod_timer+0x14/0x20
[   51.595368]  ath11k_mac_op_start+0x41c/0x4a0 [ath11k]
[   51.603165]  drv_start+0x38/0x60 [mac80211]
[   51.610110]  ieee80211_do_open+0x29c/0x7d0 [mac80211]
[   51.617945]  ieee80211_open+0x60/0xb0 [mac80211]
[   51.625311]  __dev_open+0x100/0x1c0
[   51.631420]  __dev_change_flags+0x194/0x210
[   51.638214]  dev_change_flags+0x24/0x70
[   51.644646]  do_setlink+0x228/0xdb0
[   51.650723]  __rtnl_newlink+0x460/0x830
[   51.657162]  rtnl_newlink+0x4c/0x80
[   51.663229]  rtnetlink_rcv_msg+0x124/0x390
[   51.669917]  netlink_rcv_skb+0x58/0x130
[   51.676314]  rtnetlink_rcv+0x18/0x30
[   51.682460]  netlink_unicast+0x250/0x310
[   51.688960]  netlink_sendmsg+0x19c/0x3e0
[   51.695458]  ____sys_sendmsg+0x220/0x290
[   51.701938]  ___sys_sendmsg+0x7c/0xc0
[   51.708148]  __sys_sendmsg+0x68/0xd0
[   51.714254]  __arm64_sys_sendmsg+0x28/0x40
[   51.720900]  invoke_syscall+0x48/0x120

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3

Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
Fixes: 840c36fa727a ("ath11k: dp: stop rx pktlog before suspend")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220517103436.15867-1-johan+linaro@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:24 +02:00
Ajay Singh
24d7da5c97 wifi: wilc1000: use correct sequence of RESET for chip Power-UP/Down
[ Upstream commit fcf690b0b47494df51d214db5c5a714a400b0257 ]

For power-up sequence, WILC expects RESET set to high 5ms after making
chip_en(enable) so corrected chip power-up sequence by making RESET high.
For Power-Down sequence, the correct sequence make RESET and CHIP_EN low
without any extra delay.

Fixes: ec031ac4792c ("wilc1000: Add reset/enable GPIO support to SPI driver")
Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220524120606.9675-1-ajay.kathat@microchip.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:24 +02:00
Dan Carpenter
72efb32be1 wifi: rtlwifi: fix error codes in rtl_debugfs_set_write_h2c()
[ Upstream commit b88d28146c30a8e14f0f012d56ebf19b68a348f4 ]

If the copy_from_user() fails or the user gives invalid date then the
correct thing to do is to return a negative error code.  (Currently it
returns success).

I made a copy additional related cleanups:
1) There is no need to check "buffer" for NULL.  That's handled by
copy_from_user().
2) The "h2c_len" variable cannot be negative because it is unsigned
and because sscanf() does not return negative error codes.

Fixes: 610247f46feb ("rtlwifi: Improve debugging by using debugfs")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/YoOLnDkHgVltyXK7@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:24 +02:00
Fabio Estevam
df59b91dd8 drm: bridge: adv7511: Move CEC definitions to adv7511_cec.c
[ Upstream commit 91776af1d8deb8f36cbec6bf2bf24b661b2b5cbb ]

ADV7511_REG_CEC_RX_FRAME_HDR[] and ADV7511_REG_CEC_RX_FRAME_LEN[]
are only used inside adv7511_cec.c.

Move their definitions to this file to avoid the following build
warnings when CONFIG_DRM_I2C_ADV7511_CEC is not selected:

drivers/gpu/drm/bridge/adv7511/adv7511.h:229:17: warning: 'ADV7511_REG_CEC_RX_FRAME_HDR' defined but not used [-Wunused-const-variable=]
drivers/gpu/drm/bridge/adv7511/adv7511.h:235:17: warning: 'ADV7511_REG_CEC_RX_FRAME_LEN' defined but not used [-Wunused-const-variable=]

Reported-by: kernel test robot <lkp@intel.com>
Fixes: ab0af093bf90 ("drm: bridge: adv7511: use non-legacy mode for CEC RX")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220525215316.1133057-1-festevam@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:24 +02:00
Gao Chao
2d5e9bce99 drm/panel: Fix build error when CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20=y && CONFIG_DRM_DISPLAY_HELPER=m
[ Upstream commit a67664860f7833015a683ea295f7c79ac2901332 ]

If CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20=y && CONFIG_DRM_DISPLAY_HELPER=m,
bulding fails:

drivers/gpu/drm/panel/panel-samsung-atna33xc20.o: In function `atana33xc20_probe':
panel-samsung-atna33xc20.c:(.text+0x744): undefined reference to
 `drm_panel_dp_aux_backlight'
make: *** [vmlinux] Error 1

Let CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20 select DRM_DISPLAY_DP_HELPER and
CONFIG_DRM_DISPLAY_HELPER to fix this error.

Fixes: 32ce3b320343 ("drm/panel: atna33xc20: Introduce the Samsung ATNA33XC20 panel")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Gao Chao <gaochao49@huawei.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220524024551.539-1-gaochao49@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:24 +02:00
Javier Martinez Canillas
9255a2b6d7 drm/st7735r: Fix module autoloading for Okaya RH128128T
[ Upstream commit 9ad6f181ad9a19a26bda73a7b199df44ccfcdaba ]

The SPI core always reports a "MODALIAS=spi:<foo>", even if the device was
registered via OF. This means that the st7735r.ko module won't autoload if
a DT has a node with a compatible "okaya,rh128128t" string.

In that case, kmod expects a "MODALIAS=of:N*T*Cokaya,rh128128t" uevent but
instead will get a "MODALIAS=spi:rh128128t", which is not present in the
list of aliases:

  $ modinfo drivers/gpu/drm/tiny/st7735r.ko | grep alias
  alias:          of:N*T*Cokaya,rh128128tC*
  alias:          of:N*T*Cokaya,rh128128t
  alias:          of:N*T*Cjianda,jd-t18003-t01C*
  alias:          of:N*T*Cjianda,jd-t18003-t01
  alias:          spi:jd-t18003-t01

To workaround this issue, add in the SPI table an entry for that device.

Fixes: d1d511d516f7 ("drm: tiny: st7735r: Add support for Okaya RH128128T")
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: David Lechner <david@lechnology.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220520091602.179078-1-javierm@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:24 +02:00
John Stultz
ab6360c307 drm/bridge: lt9611: Use both bits for HDMI sensing
[ Upstream commit 649eb3828fb22e829e222ebd83f4e11dc503a565 ]

In commit 19cf41b64e3b ("lontium-lt9611: check a different
register bit for HDMI sensing"), the bit flag used to detect
HDMI cable connect was switched from BIT(2) to BIT(0) to improve
compatibility with some monitors that didn't seem to set BIT(2).

However, with that change, I've seen occasional issues where the
detection failed, because BIT(2) was set, but not BIT(0).

Unfortunately, as I understand it, the bits and their function
was never clearly documented. So lets instead check both
(BIT(2) | BIT(0)) when checking the register.

Cc: Yongqin Liu <yongqin.liu@linaro.org>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: kernel-team@android.com
Fixes: 19cf41b64e3b ("lontium-lt9611: check a different register bit for HDMI sensing")
Signed-off-by: John Stultz <jstultz@google.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220511012612.3297577-2-jstultz@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:24 +02:00
Jani Nikula
a056d7ccce drm/edid: reset display info in drm_add_edid_modes() for NULL edid
[ Upstream commit d10f7117aa43b0b0d1c4b878afafb6d151da441d ]

If a NULL edid gets passed to drm_add_edid_modes(), we should probably
also reset the display info.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/2ac1c55f94a08d5e72c0b518d956a11002ec85c1.1651569697.git.jani.nikula@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:23 +02:00
Manikanta Pubbisetty
620949b26c ath11k: Init hw_params before setting up AHB resources
[ Upstream commit bebcfd2534a63ab7e7325f5337662bc84ca038b6 ]

As part of adding the support of WCN6750 to ath11k, bus_params
were moved to hw_params and this regressed the initialization
of WCN6750. By the time AHB resources are setup for WCN6750,
hw_params will not be initialized and therefore initialization
for WCN6750 will fail. This is applicable only for WCN6750,
no other device is impacted.

Fix this by moving the initialization of hw_params before
setting up AHB resources.

Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00887-QCAMSLSWPLZ-1

Fixes: 00402f49d26f ("ath11k: Add support for WCN6750 device")
Signed-off-by: Manikanta Pubbisetty <quic_mpubbise@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220517055241.15885-1-quic_mpubbise@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:23 +02:00
Baochen Qiang
7b4fe5c024 ath11k: Fix warning on variable 'sar' dereference before check
[ Upstream commit 77bbbd5e0ed3b5998a353b0948584faa4f565f0e ]

We are seeing below warning:
warn: variable dereferenced before check 'sar'

Fix it by moving ahead pointer check on 'sar'.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3

Fixes: 652f69ed9c1b ("ath11k: Add support for SAR")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220517004844.2412660-1-quic_bqiang@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:23 +02:00
Krzysztof Kozlowski
a6b75715fa ath10k: do not enforce interrupt trigger type
[ Upstream commit 1ee6c5abebd3cacf2ac4378d0ed4f57fd4850421 ]

Interrupt line can be configured on different hardware in different way,
even inverted.  Therefore driver should not enforce specific trigger
type - edge rising - but instead rely on Devicetree to configure it.

All Qualcomm DTSI with WCN3990 define the interrupt type as level high,
so the mismatch between DTSI and driver causes rebind issues:

  $ echo 18800000.wifi > /sys/bus/platform/drivers/ath10k_snoc/unbind
  $ echo 18800000.wifi > /sys/bus/platform/drivers/ath10k_snoc/bind
  [   44.763114] irq: type mismatch, failed to map hwirq-446 for interrupt-controller@17a00000!
  [   44.763130] ath10k_snoc 18800000.wifi: error -ENXIO: IRQ index 0 not found
  [   44.763140] ath10k_snoc 18800000.wifi: failed to initialize resource: -6

Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.2.0.c8-00009-QCAHLSWSC8180XMTPLZ-1
Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.2.0-01387-QCAHLSWMTPLZ-1

Fixes: c963a683e701 ("ath10k: add resource init and deinit for WCN3990")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Steev Klimaszewski <steev@kali.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220513151516.357549-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:23 +02:00
Marek Vasut
9a3c206caa drm/bridge: tc358767: Make sure Refclk clock are enabled
[ Upstream commit 0b4c48f3e315d172e4cc06e10f2c8ba180788baf ]

The Refclk may be supplied by SoC clock output instead of crystal
oscillator, make sure the clock are enabled before any other action
is performed with the bridge chip, otherwise it may either fail to
operate at all, or miss reset GPIO toggle.

Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Fixes: 7caff0fc4296e ("drm/bridge: tc358767: Add DPI to eDP bridge driver")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220520121543.11550-1-marex@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:23 +02:00
Marek Vasut
a665b500d7 drm/bridge: tc358767: Handle dsi_lanes == 0 as invalid
[ Upstream commit 0d662350928e6787d29ab205e47e5aa6f1f792f9 ]

Handle empty data-lanes = < >; property, which translates to
dsi_lanes = 0 as invalid.

Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Fixes: bbfd3190b6562 ("drm/bridge: tc358767: Add DSI-to-DPI mode support")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220519095137.11896-1-marex@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:23 +02:00
Douglas Anderson
9c5d750da0 drm/dp: Export symbol / kerneldoc fixes for DP AUX bus
[ Upstream commit 39c28cdfb719f0e306b447f0827dfd712f81858b ]

While working on the DP AUX bus code I found a few small things that
should be fixed. Namely the non-devm version of
of_dp_aux_populate_ep_devices() was missing an export. There was also
an extra blank line in a kerneldoc and a kerneldoc that incorrectly
documented a return value. Fix these.

Fixes: aeb33699fc2c ("drm: Introduce the DP AUX bus")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220510122726.v3.1.Ia91f4849adfc5eb9da1eb37ba79aa65fb3c95a0f@changeid
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:23 +02:00
Miaoqian Lin
bfcca6234b drm/meson: Fix refcount leak in meson_encoder_hdmi_init
[ Upstream commit 7381076809586528e2a812a709e2758916318a99 ]

of_find_device_by_node() takes reference, we should use put_device()
to release it when not need anymore.
Add missing put_device() in error path to avoid refcount
leak.

Fixes: 0af5e0b41110 ("drm/meson: encoder_hdmi: switch to bridge DRM_BRIDGE_ATTACH_NO_CONNECTOR")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220511054052.51981-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:22 +02:00
Thomas Zimmermann
131b4d4f22 drm/mgag200: Acquire I/O lock while reading EDID
[ Upstream commit 5913ab941d6ea782e841234c76958c6872ea752d ]

DDC operation conflicts with concurrent mode setting. Acquire the
driver's I/O lock in get_modes to prevent this. This change should
have been part of commit 931e3f3a0e99 ("drm/mgag200: Protect
concurrent access to I/O registers with lock"), but apparently got
lost somewhere.

v3:
	* fix commit message to say 'drm/mgag200' (Jocelyn)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 931e3f3a0e99 ("drm/mgag200: Protect concurrent access to I/O registers with lock")
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Tested-by: Jocelyn Falempe <jfalempe@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Jocelyn Falempe <jfalempe@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20220516134343.6085-2-tzimmermann@suse.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:22 +02:00
Xin Ji
63e2c558ad drm/bridge: anx7625: Use DPI bus type
[ Upstream commit a77c2af0994e24ee36c7ffb6dc852770bdf06fb1 ]

As V4L2_FWNODE_BUS_TYPE_PARALLEL not properly descript for DPI
interface, this patch use new defined V4L2_FWNODE_BUS_TYPE_DPI for it.

Fixes: fd0310b6fe7d ("drm/bridge: anx7625: add MIPI DPI input feature")
Signed-off-by: Xin Ji <xji@analogixsemi.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Acked-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220422084720.959271-4-xji@analogixsemi.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:22 +02:00
Geert Uytterhoeven
58a3eb45e8 drm: bridge: DRM_FSL_LDB should depend on ARCH_MXC
[ Upstream commit a9ad5822366c5065e6a65fe5ff5090295ba98986 ]

The Freescale i.MX8MP LDB bridge is only present on Freescale i.MX8MP
SoCs.  Hence add a dependency on ARCH_MXC, to prevent asking the user
about this driver when configuring a kernel without i.MX SoC support.

Fixes: 463db5c2ed4aed01 ("drm: bridge: ldb: Implement simple Freescale i.MX8MP LDB bridge")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/449e08ca791a3ca308de5477c1bdc1f6eb1b34e7.1652104211.git.geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:22 +02:00
Dan Carpenter
d6acd77e3b drm/rockchip: vop2: unlock on error path in vop2_crtc_atomic_enable()
[ Upstream commit 98526c5bbe3267d447ddd076b685439e3e1396c6 ]

This error path needs an unlock before returning.

Fixes: 604be85547ce ("drm/rockchip: Add VOP2 driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YnjZQRV9lpub2ET8@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:22 +02:00
Jani Nikula
7c242077ee drm/i915: remove unused GEM_DEBUG_DECL() and GEM_DEBUG_BUG_ON()
[ Upstream commit 1b93ff4d0679190e8812cd0d0b3aebfcba1ed883 ]

There are already too many choices here, take away the unused ones.

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220504183716.987793-1-jani.nikula@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:22 +02:00
Marek Vasut
14053d3e52 dt-bindings: display: bridge: ldb: Fill in reg property
[ Upstream commit 16c8d76abe83d75b578d72ee22d25a52c764e14a ]

Add missing reg and reg-names properties for both 'LDB_CTRL'
and 'LVDS_CTRL' registers.

Fixes: 463db5c2ed4ae ("drm: bridge: ldb: Implement simple Freescale i.MX8MP LDB bridge")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Robby Cai <robby.cai@nxp.com>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: devicetree@vger.kernel.org
To: dri-devel@lists.freedesktop.org
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220504012601.423644-1-marex@denx.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:22 +02:00
Hongnan Li
e66205ee2d erofs: update ctx->pos for every emitted dirent
[ Upstream commit ecce9212d0fd7a2d4a4998f0c4623a66887e14c8 ]

erofs_readdir update ctx->pos after filling a batch of dentries
and it may cause dir/files duplication for NFS readdirplus which
depends on ctx->pos to fill dir correctly. So update ctx->pos for
every emitted dirent in erofs_fill_dentries to fix it.

Also fix the update of ctx->pos when the initial file position has
exceeded nameoff.

Fixes: 3e917cc305c6 ("erofs: make filesystem exportable")
Signed-off-by: Hongnan Li <hongnan.li@linux.alibaba.com>
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20220722082732.30935-1-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:21 +02:00
Uwe Kleine-König
8aa69de3d0 pwm: lpc18xx: Fix period handling
[ Upstream commit 8933d30c5f468d6cc1e4bf9bb535149da35f202e ]

The calculation:

	val = (u64)NSEC_PER_SEC * LPC18XX_PWM_TIMER_MAX;
	do_div(val, lpc18xx_pwm->clk_rate);
	lpc18xx_pwm->max_period_ns = val;

is bogus because with NSEC_PER_SEC = 1000000000,
LPC18XX_PWM_TIMER_MAX = 0xffffffff and clk_rate < NSEC_PER_SEC this
overflows the (on lpc18xx (i.e. ARM32) 32 bit wide) unsigned int
.max_period_ns. This results (dependant of the actual clk rate) in an
arbitrary limitation of the maximal period.  E.g. for clkrate =
333333333 (Hz) we get max_period_ns = 9 instead of 12884901897.

So make .max_period_ns an u64 and pass period and duty as u64 to not
discard relevant digits. And also make use of mul_u64_u64_div_u64()
which prevents all overflows assuming clk_rate < NSEC_PER_SEC.

Fixes: 841e6f90bb78 ("pwm: NXP LPC18xx PWM/SCT driver")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:21 +02:00
Uwe Kleine-König
11f19c910b pwm: sifive: Shut down hardware only after pwmchip_remove() completed
[ Upstream commit 2375e964d541bb09158cd2dff67b5d74e8de61cd ]

The PWMs are expected to be functional until pwmchip_remove() is called.
So disable the clks only afterwards.

Fixes: 9e37a53eb051 ("pwm: sifive: Add a driver for SiFive SoC PWM")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tested-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:21 +02:00
Uwe Kleine-König
f9a71b8079 pwm: sifive: Ensure the clk is enabled exactly once per running PWM
[ Upstream commit ace41d7564e655c39f709a78c035188a460c7cbd ]

.apply() assumes the clk to be for a given PWM iff the PWM is enabled.
So make sure this is the case when .probe() completes. And in .remove()
disable the according number of times.

This fixes a clk enable/disable imbalance, if some PWMs are already running
at probe time.

Fixes: 9e37a53eb051 (pwm: sifive: Add a driver for SiFive SoC PWM)
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tested-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:21 +02:00
Uwe Kleine-König
1d18eb5b9c pwm: sifive: Simplify offset calculation for PWMCMP registers
[ Upstream commit 20550a61880fc55e68a0d290ad195b74729c0e7b ]

Instead of explicitly using PWM_SIFIVE_PWMCMP0 + pwm->hwpwm *
PWM_SIFIVE_SIZE_PWMCMP for each access to one of the PWMCMP registers,
introduce a macro that takes the hwpwm id as parameter.

For the register definition using a plain 4 instead of the cpp constant
PWM_SIFIVE_SIZE_PWMCMP is easier to read, so define the offset macro
without the constant. The latter can then be dropped as there are no
users left.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tested-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:21 +02:00
Mike Snitzer
0545bfd4c8 dm: return early from dm_pr_call() if DM device is suspended
[ Upstream commit e120a5f1e78fab6223544e425015f393d90d6f0d ]

Otherwise PR ops may be issued while the broader DM device is being
reconfigured, etc.

Fixes: 9c72bad1f31a ("dm: call PR reserve/unreserve on each underlying device")
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:21 +02:00
Colin Ian King
2ebf6f5946 tools/power turbostat: Fix file pointer leak
[ Upstream commit 5e5fd36c58d6c820f7292ee492c3731c9a104a41 ]

Currently if a fscanf fails then an early return leaks an open
file pointer. Fix this by fclosing the file before the return.
Detected using static analysis with cppcheck:

tools/power/x86/turbostat/turbostat.c:2039:3: error: Resource leak: fp [resourceLeak]

Fixes: eae97e053fe3 ("tools/power turbostat: Support thermal throttle count print")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Chen Yu <yu.c.chen@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:21 +02:00
Markus Mayer
a765d1abee thermal/tools/tmon: Include pthread and time headers in tmon.h
[ Upstream commit 0cf51bfe999524377fbb71becb583b4ca6d07cfc ]

Include sys/time.h and pthread.h in tmon.h, so that types
"pthread_mutex_t" and "struct timeval tv" are known when tmon.h
references them.

Without these headers, compiling tmon against musl-libc will fail with
these errors:

In file included from sysfs.c:31:0:
tmon.h:47:8: error: unknown type name 'pthread_mutex_t'
 extern pthread_mutex_t input_lock;
        ^~~~~~~~~~~~~~~
make[3]: *** [<builtin>: sysfs.o] Error 1
make[3]: *** Waiting for unfinished jobs....
In file included from tui.c:31:0:
tmon.h:54:17: error: field 'tv' has incomplete type
  struct timeval tv;
                 ^~
make[3]: *** [<builtin>: tui.o] Error 1
make[2]: *** [Makefile:83: tmon] Error 2

Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Acked-by: Alejandro González <alejandro.gonzalez.correo@gmail.com>
Tested-by: Alejandro González <alejandro.gonzalez.correo@gmail.com>
Fixes: 94f69966faf8 ("tools/thermal: Introduce tmon, a tool for thermal  subsystem")
Link: https://lore.kernel.org/r/20220718031040.44714-1-f.fainelli@gmail.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:21 +02:00
YiFei Zhu
1c8729942e selftests/seccomp: Fix compile warning when CC=clang
[ Upstream commit 3ce4b78f73e8e00fb86bad67ee7f6fe12019707e ]

clang has -Wconstant-conversion by default, and the constant 0xAAAAAAAAA
(9 As) being converted to an int, which is generally 32 bits, results
in the compile warning:

  clang -Wl,-no-as-needed -Wall -isystem ../../../../usr/include/  -lpthread  seccomp_bpf.c -lcap -o seccomp_bpf
  seccomp_bpf.c:812:67: warning: implicit conversion from 'long' to 'int' changes value from 45812984490 to -1431655766 [-Wconstant-conversion]
          int kill = kill_how == KILL_PROCESS ? SECCOMP_RET_KILL_PROCESS : 0xAAAAAAAAA;
              ~~~~                                                         ^~~~~~~~~~~
  1 warning generated.

-1431655766 is the expected truncation, 0xAAAAAAAA (8 As), so use
this directly in the code to avoid the warning.

Fixes: 3932fcecd962 ("selftests/seccomp: Add test for unknown SECCOMP_RET kill behavior")
Signed-off-by: YiFei Zhu <zhuyifei@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220526223407.1686936-1-zhuyifei@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:20 +02:00
Michal Koutný
901e61b5e0 io_uring: Don't require reinitable percpu_ref
[ Upstream commit 48904229928d941ce1db181b991948387ab463cd ]

The commit 8bb649ee1da3 ("io_uring: remove ring quiesce for
io_uring_register") removed the worklow relying on reinit/resurrection
of the percpu_ref, hence, initialization with that requested is a relic.

This is based on code review, this causes no real bug (and theoretically
can't). Technically it's a revert of commit 214828962dea ("io_uring:
initialize percpu refcounters using PERCU_REF_ALLOW_REINIT") but since
the flag omission is now justified, I'm not making this a revert.

Fixes: 8bb649ee1da3 ("io_uring: remove ring quiesce for io_uring_register")
Signed-off-by: Michal Koutný <mkoutny@suse.com>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:20 +02:00
Jens Axboe
674147513d io_uring: define a 'prep' and 'issue' handler for each opcode
[ Upstream commit 0702e5364f643bc86683d9f585edfe76dbabae39 ]

Rather than have two giant switches for doing request preparation and
then for doing request issue, add a prep and issue handler for each
of them in the io_op_defs[] request definition.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:20 +02:00
Jens Axboe
95c74abe40 io_uring: move to separate directory
[ Upstream commit ed29b0b4fd835b058ddd151c49d021e28d631ee6 ]

In preparation for splitting io_uring up a bit, move it into its own
top level directory. It didn't really belong in fs/ anyway, as it's
not a file system only API.

This adds io_uring/ and moves the core files in there, and updates the
MAINTAINERS file for the new location.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:20 +02:00
Peter Zijlstra
90812dd1f7 x86/extable: Fix ex_handler_msr() print condition
[ Upstream commit a1a5482a2c6e38a3ebed32e571625c56a8cc41a6 ]

On Fri, Jun 17, 2022 at 02:08:52PM +0300, Stephane Eranian wrote:
> Some changes to the way invalid MSR accesses are reported by the
> kernel is causing some problems with messages printed on the
> console.
>
> We have seen several cases of ex_handler_msr() printing invalid MSR
> accesses once but the callstack multiple times causing confusion on
> the console.

> The problem here is that another earlier commit (5.13):
>
> a358f40600b3 ("once: implement DO_ONCE_LITE for non-fast-path "do once" functionality")
>
> Modifies all the pr_*_once() calls to always return true claiming
> that no caller is ever checking the return value of the functions.
>
> This is why we are seeing the callstack printed without the
> associated printk() msg.

Extract the ONCE_IF(cond) part into __ONCE_LTE_IF() and use that to
implement DO_ONCE_LITE_IF() and fix the extable code.

Fixes: a358f40600b3 ("once: implement DO_ONCE_LITE for non-fast-path "do once" functionality")
Reported-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Stephane Eranian <eranian@google.com>
Link: https://lkml.kernel.org/r/YqyVFsbviKjVGGZ9@worktop.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:20 +02:00
Mel Gorman
8766627656 sched/numa: Initialise numa_migrate_retry
[ Upstream commit 70ce3ea9aa4ed901c8a90de667df5ef307766e71 ]

On clone, numa_migrate_retry is inherited from the parent which means
that the first NUMA placement of a task is non-deterministic. This
affects when load balancing recognises numa tasks and whether to
migrate "regular", "remote" or "all" tasks between NUMA scheduler
domains.

Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Link: https://lore.kernel.org/r/20220520103519.1863-2-mgorman@techsingularity.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:20 +02:00
Christian Göttsche
dcdb6272b7 sched: only perform capability check on privileged operation
[ Upstream commit 700a78335fc28a59c307f420857fd2d4521549f8 ]

sched_setattr(2) issues via kernel/sched/core.c:__sched_setscheduler()
a CAP_SYS_NICE audit event unconditionally, even when the requested
operation does not require that capability / is unprivileged, i.e. for
reducing niceness.
This is relevant in connection with SELinux, where a capability check
results in a policy decision and by default a denial message on
insufficient permission is issued.
It can lead to three undesired cases:
  1. A denial message is generated, even in case the operation was an
     unprivileged one and thus the syscall succeeded, creating noise.
  2. To avoid the noise from 1. the policy writer adds a rule to ignore
     those denial messages, hiding future syscalls, where the task
     performs an actual privileged operation, leading to hidden limited
     functionality of that task.
  3. To avoid the noise from 1. the policy writer adds a rule to allow
     the task the capability CAP_SYS_NICE, while it does not need it,
     violating the principle of least privilege.

Conduct privilged/unprivileged categorization first and perform a
capable test (and at most once) only if needed.

Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220615152505.310488-1-cgzones@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:20 +02:00
Nicolas Saenz Julienne
32f346b746 nohz/full, sched/rt: Fix missed tick-reenabling bug in dequeue_task_rt()
[ Upstream commit 5c66d1b9b30f737fcef85a0b75bfe0590e16b62a ]

dequeue_task_rt() only decrements 'rt_rq->rt_nr_running' after having
called sched_update_tick_dependency() preventing it from re-enabling the
tick on systems that no longer have pending SCHED_RT tasks but have
multiple runnable SCHED_OTHER tasks:

  dequeue_task_rt()
    dequeue_rt_entity()
      dequeue_rt_stack()
        dequeue_top_rt_rq()
	  sub_nr_running()	// decrements rq->nr_running
	    sched_update_tick_dependency()
	      sched_can_stop_tick()	// checks rq->rt.rt_nr_running,
	      ...
        __dequeue_rt_entity()
          dec_rt_tasks()	// decrements rq->rt.rt_nr_running
	  ...

Every other scheduler class performs the operation in the opposite
order, and sched_update_tick_dependency() expects the values to be
updated as such. So avoid the misbehaviour by inverting the order in
which the above operations are performed in the RT scheduler.

Fixes: 76d92ac305f2 ("sched: Migrate sched to use new tick dependency mask model")
Signed-off-by: Nicolas Saenz Julienne <nsaenzju@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Reviewed-by: Phil Auld <pauld@redhat.com>
Link: https://lore.kernel.org/r/20220628092259.330171-1-nsaenzju@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:19 +02:00
Anshuman Khandual
dc4e49f068 drivers/perf: arm_spe: Fix consistency of SYS_PMSCR_EL1.CX
[ Upstream commit 92f2b8bafa3d6e89c750e9d301a8b7ab76aaa8b6 ]

The arm_spe_pmu driver will enable SYS_PMSCR_EL1.CX in order to add CONTEXT
packets into the traces, if the owner of the perf event runs with required
capabilities i.e CAP_PERFMON or CAP_SYS_ADMIN via perfmon_capable() helper.

The value of this bit is computed in the arm_spe_event_to_pmscr() function
but the check for capabilities happens in the pmu event init callback i.e
arm_spe_pmu_event_init(). This suggests that the value of the CX bit should
remain consistent for the duration of the perf session.

However, the function arm_spe_event_to_pmscr() may be called later during
the event start callback i.e arm_spe_pmu_start() when the "current" process
is not the owner of the perf session, hence the CX bit setting is currently
not consistent.

One way to fix this, is by caching the required value of the CX bit during
the initialization of the PMU event, so that it remains consistent for the
duration of the session. It uses currently unused 'event->hw.flags' element
to cache perfmon_capable() value, which can be referred during event start
callback to compute SYS_PMSCR_EL1.CX. This ensures consistent availability
of context packets in the trace as per event owner capabilities.

Drop BIT(SYS_PMSCR_EL1_CX_SHIFT) check in arm_spe_pmu_event_init(), because
now CX bit cannot be set in arm_spe_event_to_pmscr() with perfmon_capable()
disabled.

Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Fixes: d5d9696b0380 ("drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension")
Reported-by: German Gomez <german.gomez@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20220714061302.2715102-1-anshuman.khandual@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:19 +02:00
Liang He
ddb603a99f perf: RISC-V: Add of_node_put() when breaking out of for_each_of_cpu_node()
[ Upstream commit 491f10d08fdae10a177edf6af4f43b83b293114b ]

In pmu_sbi_setup_irqs(), we should call of_node_put() for the 'cpu'
when breaking out of for_each_of_cput_node() as its refcount will
be automatically increased and decreased during the iteration.

Fixes: 4905ec2fb7e6 ("RISC-V: Add sscofpmf extension support")
Signed-off-by: Liang He <windhl@126.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20220715130330.443363-1-windhl@126.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:19 +02:00
Xu Qiang
9987e2d15f irqdomain: Report irq number for NOMAP domains
[ Upstream commit 6f194c99f466147148cc08452718b46664112548 ]

When using a NOMAP domain, __irq_resolve_mapping() doesn't store
the Linux IRQ number at the address optionally provided by the caller.
While this isn't a huge deal (the returned value is guaranteed
to the hwirq that was passed as a parameter), let's honour the letter
of the API by writing the expected value.

Fixes: d22558dd0a6c (“irqdomain: Introduce irq_resolve_mapping()”)
Signed-off-by: Xu Qiang <xuqiang36@huawei.com>
[maz: commit message]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220719063641.56541-2-xuqiang36@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:19 +02:00
Stephan Gerhold
24be04f0eb ARM: dts: qcom: msm8974: Disable remoteprocs by default
[ Upstream commit 8d8be8dd7c1f5d50f84ecc7a6a41962da48c6164 ]

The remoteproc configuration in qcom-msm8974.dtsi is incomplete because
it lacks the regulator supplies that should be added in the board DT
files. Some of the msm8974 boards are currently missing the regulator
supplies and should have the remoteprocs disabled to avoid making use
of the incomplete configuration.

This also fixes dtbs_check warnings after moving "qcom,msm8974-mss-pil"
to DT schema, which rightfully complains that the -supply properties
are missing for some boards:

qcom-apq8074-dragonboard.dtb:
remoteproc@fc880000: 'pll-supply' is a required property
        From schema: remoteproc/qcom,msm8916-mss-pil.yaml
remoteproc@fc880000: 'mss-supply' is a required property
        From schema: remoteproc/qcom,msm8916-mss-pil.yaml
remoteproc@fc880000: 'oneOf' conditional failed, one must be fixed:
        'power-domains' is a required property
        'power-domain-names' is a required property, or
        'cx-supply' is a required property
        'mx-supply' is a required property

Cc: Luca Weiss <luca@z3ntu.xyz>
Cc: Konrad Dybcio <konrad.dybcio@somainline.org>
Fixes: f300826d27be ("ARM: dts: qcom-msm8974: Sort and clean up nodes")
Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220712124421.3129206-4-stephan.gerhold@kernkonzept.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:19 +02:00
Sumit Garg
d9f1fa7c4e arm64: dts: qcom: qcs404: Fix incorrect USB2 PHYs assignment
[ Upstream commit 58577966a42fc0b660b5e2c7c9e5a2241363ea83 ]

Currently the DT for QCS404 SoC has setup for 2 USB2 PHYs with one each
assigned to USB3 controller and USB2 controller. This assignment is
incorrect which only works by luck: as when each USB HCI comes up it
configures the *other* controllers PHY which is enough to make them
happy. If, for any reason, we were to disable one of the controllers then
both would stop working.

This was a difficult inconsistency to be caught which was found while
trying to enable USB support in u-boot. So with all the required drivers
ported to u-boot, I couldn't get the same USB storage device enumerated
in u-boot which was being enumerated fine by the kernel.

The root cause of the problem came out to be that I wasn't enabling USB2
PHY: "usb2_phy_prim" in u-boot. Then I realised that via simply disabling
the same USB2 PHY currently assigned to USB2 host controller in the
kernel disabled enumeration for USB3 host controller as well.

So fix this inconsistency by correctly assigning USB2 PHYs.

Fixes: 9375e7d719b3 ("arm64: dts: qcom: qcs404: Add USB devices and PHYs")
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220711083038.1518529-1-sumit.garg@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:19 +02:00
Marijn Suijten
fd95595c2e arm64: dts: qcom: msm8998: Make regulator voltages multiple of step-size
[ Upstream commit 2aa54fa87cca1fa43870a9caf4fcce00eb087fa5 ]

These voltages are not a multiple of the given step-size 8000 (with base
voltage 1664000) in pm8998_pldo, resulting in PLDO regulators l18 and
l22 failing to validate and in turn not probing the rpm-pm8998-regulator
driver:

    l18: unsupportable voltage constraints 2856000-2848000uV
    qcom_rpm_smd_regulator rpm-glink:rpm-requests:pm8998-regulators: l18: devm_regulator_register() failed, ret=-22

Round the voltages down for the sake of erring on the safe side, leaving
a comment in place to document this discrepancy wrt downstream sources.

Fixes: 390883af89d2 ("arm64: dts: qcom: msm8998: Introduce support for Sony Yoshino platform")
Reported-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220507153627.1478268-1-marijn.suijten@somainline.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:19 +02:00
Parikshit Pareek
51dabf18fc soc: qcom: socinfo: Fix the id of SA8540P SoC
[ Upstream commit 5bed21af0005cc7d8bb05d2c4a63afbcede23382 ]

Change the id of SA8540P to its correct value, i.e., 461.
Also, map the id 460 to its correct values, i.e. SA8295P.

Fixes: 76ee15ae1b13 ("soc: qcom: socinfo: Add some more PMICs and SoCs")
Signed-off-by: Parikshit Pareek <quic_ppareek@quicinc.com>
Reviewed-by: Eric Chanudet <echanude@redhat.com>
Tested-by: Eric Chanudet <echanude@redhat.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220711083957.12091-1-quic_ppareek@quicinc.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:18 +02:00
Konrad Dybcio
c1716ee4af soc: qcom: Make QCOM_RPMPD depend on PM
[ Upstream commit a6232f2aa99ce470799992e99e0012945bb5308f ]

QCOM_RPMPD requires PM_GENERIC_DOMAINS/_OF, which in turns requires
CONFIG_PM. I forgot about the latter in my earlier patch (it's still
in -next as of the time of committing, hence no Fixes: tag). Fix it.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220707212158.32684-1-konrad.dybcio@somainline.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-17 15:14:18 +02:00