linux.git
16 months agousb: typec: qcom-pmic-typec: allow different implementations for the port backend
Dmitry Baryshkov [Sat, 13 Jan 2024 20:55:51 +0000 (22:55 +0200)]
usb: typec: qcom-pmic-typec: allow different implementations for the port backend

Follow the PD PHY changes and rework Type-C port implementation to
become an encapsulated backend. While this is not required for the
PMI632, it will us later to enable Type-C handling on earlier platforms,
including, but not limited to SDM845, SDM660 and MSM8998.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20240113-pmi632-typec-v2-8-182d9aa0a5b3@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: qcom-pmic-typec: allow different implementations for the PD PHY
Dmitry Baryshkov [Sat, 13 Jan 2024 20:55:50 +0000 (22:55 +0200)]
usb: typec: qcom-pmic-typec: allow different implementations for the PD PHY

Rework Qualcomm PMIC TCPM driver to allow different platform-specific
implementations of the PD PHY interface. While majority of platforms
has the same of register for the PD PHY, some obscure ones (PMI632) do
not have real PD PHY support. Add proper interface between the main
module and the PD PHY backend to allow switching the PD PHY
implementation.

Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240113-pmi632-typec-v2-7-182d9aa0a5b3@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: qcom-pmic-typec: fix arguments of qcom_pmic_typec_pdphy_set_roles
Dmitry Baryshkov [Sat, 13 Jan 2024 20:55:49 +0000 (22:55 +0200)]
usb: typec: qcom-pmic-typec: fix arguments of qcom_pmic_typec_pdphy_set_roles

The function qcom_pmic_typec_set_roles() passes enum values as boolean
values to qcom_pmic_typec_pdphy_set_roles(), which then interprets them
as bit values. Be more explicit about it, pass enum values directly and
compute corresponding bit masks in qcom_pmic_typec_pdphy_set_roles().

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20240113-pmi632-typec-v2-6-182d9aa0a5b3@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: gadget: f_fs: expose ready state in configfs
Peter Korsgaard [Fri, 26 Jan 2024 20:32:08 +0000 (21:32 +0100)]
usb: gadget: f_fs: expose ready state in configfs

When a USB gadget is configured through configfs with 1 or more f_fs
functions, then the logic setting up the gadget configuration has to wait
until the user space code (typically separate applications) responsible for
those functions have written their descriptors before the gadget can be
activated.

The f_fs instance already knows if this has been done, so expose it through
a "ready" attribute in configfs for easier synchronization.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Link: https://lore.kernel.org/r/20240126203208.2482573-1-peter@korsgaard.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: dwc3: Add workaround for host mode VBUS glitch when boot
Ran Wang [Wed, 24 Jan 2024 15:25:25 +0000 (10:25 -0500)]
usb: dwc3: Add workaround for host mode VBUS glitch when boot

When DWC3 is set to host mode by programming register DWC3_GCTL, VBUS
(or its control signal) will be turned on immediately on related Root Hub
ports. Then, the VBUS is turned off for a little while(15us) when do xhci
reset (conducted by xhci driver) and back to normal finally, we can
observe a negative glitch of related signal happen.

This VBUS glitch might cause some USB devices enumeration fail if kernel
boot with them connected. Such as LS1012AFWRY/LS1043ARDB/LX2160AQDS
/LS1088ARDB with Kingston 16GB USB2.0/Kingston USB3.0/JetFlash Transcend
4GB USB2.0 drives. The fail cases include enumerated as full-speed device
or report wrong device descriptor, etc.

One SW workaround which can fix this is by programing all xhci PORTSC[PP]
to 0 to turn off VBUS immediately after setting host mode in DWC3 driver
(per signal measurement result, it will be too late to do it in
xhci-plat.c or xhci.c). Then, after xhci reset complete in xhci driver,
PORTSC[PP]s' value will back to 1 automatically and VBUS on at that time,
no glitch happen and normal enumeration process has no impact.

Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20240124152525.3910311-4-Frank.Li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agodt-bindings: usb: dwc3: Add snps,host-vbus-glitches-quirk avoid vbus glitch
Ran Wang [Wed, 24 Jan 2024 15:25:24 +0000 (10:25 -0500)]
dt-bindings: usb: dwc3: Add snps,host-vbus-glitches-quirk avoid vbus glitch

When DWC3 is set to host mode by programming register DWC3_GCTL, VBUS
(or its control signal) will turn on immediately on related Root Hub
ports. Then the VBUS will be de-asserted for a little while during xhci
reset (conducted by xhci driver) for a little while and back to normal.

This VBUS glitch might cause some USB devices emuration fail if kernel
boot with them connected. One SW workaround which can fix this is to
program all PORTSC[PP] to 0 to turn off VBUS immediately after setting
host mode in DWC3 driver(per signal measurement result, it will be too
late to do it in xhci-plat.c or xhci.c).

Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20240124152525.3910311-3-Frank.Li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agoXHCI: Separate PORT and CAPs macros into dedicated file
Frank Li [Wed, 24 Jan 2024 15:25:23 +0000 (10:25 -0500)]
XHCI: Separate PORT and CAPs macros into dedicated file

Split the PORT and CAPs macro definitions into a separate file to
facilitate sharing with other files without the need to include the entire
xhci.h.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20240124152525.3910311-2-Frank.Li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agokselftest: devices: Add sample board file for XPS 13 9300
Nícolas F. R. A. Prado [Mon, 22 Jan 2024 18:53:23 +0000 (15:53 -0300)]
kselftest: devices: Add sample board file for XPS 13 9300

Add a sample board file describing the file's format and with the list
of devices expected to be probed on the XPS 13 9300 machine as an
example x86 platform.

Test output:

TAP version 13
Using board file: boards/Dell Inc.,XPS 13 9300.yaml
1..22
ok 1 /pci-controller/14.0/usb2-controller/9/camera.device
ok 2 /pci-controller/14.0/usb2-controller/9/camera.0.driver
ok 3 /pci-controller/14.0/usb2-controller/9/camera.1.driver
ok 4 /pci-controller/14.0/usb2-controller/9/camera.2.driver
ok 5 /pci-controller/14.0/usb2-controller/9/camera.3.driver
ok 6 /pci-controller/14.0/usb2-controller/10/bluetooth.device
ok 7 /pci-controller/14.0/usb2-controller/10/bluetooth.0.driver
ok 8 /pci-controller/14.0/usb2-controller/10/bluetooth.1.driver
ok 9 /pci-controller/2.0/gpu.device
ok 10 /pci-controller/2.0/gpu.driver
ok 11 /pci-controller/4.0/thermal.device
ok 12 /pci-controller/4.0/thermal.driver
ok 13 /pci-controller/12.0/sensors.device
ok 14 /pci-controller/12.0/sensors.driver
ok 15 /pci-controller/14.3/wifi.device
ok 16 /pci-controller/14.3/wifi.driver
ok 17 /pci-controller/1d.0/0.0/ssd.device
ok 18 /pci-controller/1d.0/0.0/ssd.driver
ok 19 /pci-controller/1d.7/0.0/sdcard-reader.device
ok 20 /pci-controller/1d.7/0.0/sdcard-reader.driver
ok 21 /pci-controller/1f.3/audio.device
ok 22 /pci-controller/1f.3/audio.driver
Totals: pass:22 fail:0 xfail:0 xpass:0 skip:0 error:0

Signed-off-by: "Nícolas F. R. A. Prado" <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240122-discoverable-devs-ksft-v4-3-d602e1df4aa2@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agokselftest: devices: Add sample board file for google,spherion
Nícolas F. R. A. Prado [Mon, 22 Jan 2024 18:53:22 +0000 (15:53 -0300)]
kselftest: devices: Add sample board file for google,spherion

Add a sample board file describing the file's format and with the list
of devices expected to be probed on the google,spherion machine as an
example.

Test output:

TAP version 13
Using board file: boards/google,spherion.yaml
1..8
ok 1 /usb2-controller@11200000/1.4.1/camera.device
ok 2 /usb2-controller@11200000/1.4.1/camera.0.driver
ok 3 /usb2-controller@11200000/1.4.1/camera.1.driver
ok 4 /usb2-controller@11200000/1.4.2/bluetooth.device
ok 5 /usb2-controller@11200000/1.4.2/bluetooth.0.driver
ok 6 /usb2-controller@11200000/1.4.2/bluetooth.1.driver
ok 7 /pci-controller@11230000/0.0/0.0/wifi.device
ok 8 /pci-controller@11230000/0.0/0.0/wifi.driver
Totals: pass:8 fail:0 xfail:0 xpass:0 skip:0 error:0

Signed-off-by: "Nícolas F. R. A. Prado" <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240122-discoverable-devs-ksft-v4-2-d602e1df4aa2@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agokselftest: Add test to verify probe of devices from discoverable buses
Nícolas F. R. A. Prado [Mon, 22 Jan 2024 18:53:21 +0000 (15:53 -0300)]
kselftest: Add test to verify probe of devices from discoverable buses

Add a new test to verify that a list of expected devices from
discoverable buses (ie USB, PCI) have been successfully instantiated and
probed by a driver.

The per-platform list of expected devices is selected from the ones
under the boards/ directory based on the DT compatible or the DMI IDs.

Signed-off-by: "Nícolas F. R. A. Prado" <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240122-discoverable-devs-ksft-v4-1-d602e1df4aa2@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: altmodes/displayport: add SOP' support
RD Babiera [Mon, 8 Jan 2024 19:16:25 +0000 (19:16 +0000)]
usb: typec: altmodes/displayport: add SOP' support

Implement active cable VDM support for SOP' according to the DisplayPort
Alt Mode 2.0 specification.

When probing the DisplayPort driver, the state machine will transition to
Enter Mode on SOP' if an active cable altmode is detected. The SVDM flow
is as followed:
    (1) Enter Mode     SOP'
    (2) Enter Mode     SOP
    (3) Status Update  SOP
    (4) Configure      SOP'
    (5) Configure      SOP

Status Update on SOP' after Enter Mode is optional and not implemented for
now. When exiting the alt mode, send Exit Mode over SOP' after SOP.

Should an altmode vdm fail on SOP', the DisplayPort driver will drop its
reference to the plug and attempt to continue in SOP operation.

Add new dp_state enums DP_STATE_ENTER_PRIME, DP_STATE_CONFIGURE_PRIME, and
DP_STATE_EXIT_PRIME. dp_altmode adds typec_displayport_data for the cable
plug to store the plug configuration and adds a typec_altmode reference
for the cable plug.

dp_altmode_configure takes the cable pin assignment capabilities into
account when deciding on pin configuration. dp_altmode_configure_vdm_cable
sends the configure message on SOP'.

dp_altmode_activate now attempts to enter on SOP' if applicable, and will
attempt to enter on SOP on failure.

dp_cable_altmode_vdm handles VDMs passed to the DisplayPort driver from
the tcpm.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Link: https://lore.kernel.org/r/20240108191620.987785-26-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: tcpm: add alt mode enter/exit/vdm support for sop'
RD Babiera [Mon, 8 Jan 2024 19:16:24 +0000 (19:16 +0000)]
usb: typec: tcpm: add alt mode enter/exit/vdm support for sop'

Add tcpm_cable_ops for enter, exit, and vdm to the tcpm, which are
registered after registering port alt modes through
typec_port_register_cable_ops. Enter Mode on SOP' now sends Exit Mode upon
failure to report to the driver.

tcpm_queue_vdm_unlocked now takes sop type as input. Proper adev_actions
in tcpm_pd_svdm are selected for SOP' messages.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-25-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: tcpm: add discover svids and discover modes support for sop'
RD Babiera [Mon, 8 Jan 2024 19:16:23 +0000 (19:16 +0000)]
usb: typec: tcpm: add discover svids and discover modes support for sop'

Adds Discover SVIDs and Discover Modes support for SOP' and Alt Mode
SVDM support over SOP'. tcpm_port adds separate Alt Mode data for SOP'.

svdm_consume_svids and svdm_consume_modes take the received SVDM's SOP*
type to store svids/modes separately, and tcpm_register_plug_altmodes
registers the active cable's alt modes.

In tcpm_pd_svdm, the port will send Discover SVIDs to SOP' after Discover
Modes on SOP if the connected cable is an active cable. Discover Modes on
SOP' is sent following Discover SVIDs on SOP. Registering partner alt modes
is delayed when an active cable is present until Discover Modes completes
on SOP', or if the Discover SVIDs/Discover Modes request on SOP' encounters
a transmission error.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-24-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: tcpm: add state machine support for SRC_VDM_IDENTITY_REQUEST
RD Babiera [Mon, 8 Jan 2024 19:16:22 +0000 (19:16 +0000)]
usb: typec: tcpm: add state machine support for SRC_VDM_IDENTITY_REQUEST

Add SRC_VDM_IDENTITY_REQUEST state which first enters after SRC_STARTUP.
The state sends Discover Identity on SOP' and transitions to
SRC_SEND_CAPABILITIES. SRC_SEND_CAPABILITIES will transition back into
SRC_VDM_IDENTITY_REQUEST instead of retrying immediately.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-23-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: tcpm: add discover identity support for SOP'
RD Babiera [Mon, 8 Jan 2024 19:16:21 +0000 (19:16 +0000)]
usb: typec: tcpm: add discover identity support for SOP'

Add data message handling and Discover Identity SVDM over SOP'

This patch contains the following changes:
    1. pd_vdo
Add VDO indices for active and passive cables, documentation to reflect
expected number of objects depending on PD Revision, and macro to indicate
port parter is data host capable.
    2. tcpm
Add typec_cable and typec_plug to tcpm_port to maintain cable and plug
information. tcpm_port also adds send_discover_prime to indicate that
Discover Identity should be sent out of the ready state.

tcpm_queue_vdm and tcpm_send_vdm now take the SOP* type when transmitting
messages. tcpm_handle_vdm_request and tcpm_pd_svdm also use the SOP* type.
tcpm_pd_svdm handles Discover Identity messages for SOP and SOP'. In the
SOP case, the port uses tcpm_attempt_vconn_swap_discovery to determine if
a Vconn swap is needed for cable communication. Otherwise, the port will
send Discover Identity on SOP' if it can, or default to Discover SVIDs.

svdm_consume_identity_sop_prime consumes the result of Discover Identity
on SOP'. It fills out cable identity and description, and it registers
the cable. The SOP' plug is registered as well.

The VDM state machine is adjusted to construct messages based on the SOP*
type. If a transmission error occurs after the max number of retries for
Discover Identity over SOP', then the port will send Discover SVIDs over
SOP.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-22-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: tcpci: add attempt_vconn_swap_discovery callback
RD Babiera [Mon, 8 Jan 2024 19:16:20 +0000 (19:16 +0000)]
usb: typec: tcpci: add attempt_vconn_swap_discovery callback

Add attempt_vconn_swap_discovery callback to determine whether the TCPM
should perform a Vconn swap following Discover Identity on SOP. The tcpci
will return false unless chip level drivers implement the callback.

Maxim based TCPCs will return true unless the last connection resulted in
a Vconn Over Current Fault, which may be the result of the Vconn swap. In
addition to the port resetting, the TCPCI will veto the next Vconn swap
from occurring.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-21-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: tcpm: add control message support to sop'
RD Babiera [Mon, 8 Jan 2024 19:16:19 +0000 (19:16 +0000)]
usb: typec: tcpm: add control message support to sop'

Add tx_sop_type to tcpm_pd_send_control and rx_sop_type to
tcpm_pd_ctrl_request. TCPC_TX_SOP is added to all pd_send_control calls,
but TCPC_TX_SOP_PRIME is added to pd_send_control for a SOFT_RESET message
sent after a Vconn swap that makes the Port the Vconn source. Likewise,
tcpm_pd_ctrl_request resets the proper protocol layer depending on
rx_sop_type for SOFT_RESET.

VCONN_SWAP_TURN_ON_VCONN now moves to a new state,
VCONN_SWAP_SEND_SOFT_RESET. This state sends SOFT_RESET over SOP' before
transitioning to the ready state if applicable. It transitions after
PD_T_VCONN_STABLE, definied in pd.h as the time required for Vconn to be
on before transmitting messages.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-20-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: tcpm: process receive and transmission of sop' messages
RD Babiera [Mon, 8 Jan 2024 19:16:18 +0000 (19:16 +0000)]
usb: typec: tcpm: process receive and transmission of sop' messages

Add negotiated revision and tx/rx message ids to tcpm_port specific to
SOP'. tx_sop_type is added to the tcpm_port to determine whether the
current constructed message will be sent over SOP or SOP' if not
sent immediately.

tcpm_pd_rx_handler updates the received message ids. SOP* messages are not
processed afterwards. The handler also calls tcpm_can_communicate_sop_prime
to determine if a SOP' message is directed towards the port, and drops SOP'
messages it should not respond to.

tcpm_can_communicate_sop_prime is added as a helper to determine whether
the port is capable of communicating over SOP' at a given moment. Being
the Vconn source is a requirement in Power Delivery 3.0 but only a
recommendation in Power Delviery 2.0. Because the port should ensure that
the cable is powered before communication, always enforce the port is the
Vconn source regardless of revision.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-19-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: tcpci: add tcpm_transmit_type to tcpm_pd_receive
RD Babiera [Mon, 8 Jan 2024 19:16:17 +0000 (19:16 +0000)]
usb: typec: tcpci: add tcpm_transmit_type to tcpm_pd_receive

tcpm_pd_receive adds the SOP type as a parameter, and passes it within the
pd_rx_event struct for tcpm_pd_rx_handler to use. For now, the handler
drops all SOP' messages.

Maxim based tcpci drivers are capable of SOP' communication, so process_rx
now takes the SOP type into account and passes the value to
tcpm_pd_receive.

tcpci_set_pd_rx now utilizes the cable_comm_capable flag to determine if
TCPC_RX_DETECT_SOP1 should be added to the bitfield when enabling PD
message reception.

For all other consumers of tcpm_pd_receive, default the new field to
TCPC_TX_SOP.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-18-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: tcpci: add cable_comm_capable attribute
RD Babiera [Mon, 8 Jan 2024 19:16:16 +0000 (19:16 +0000)]
usb: typec: tcpci: add cable_comm_capable attribute

Add cable_comm_capable to tcpci_data for tcpci drivers to indicate that
the port tcpc is capable of communicating to cables over SOP. A
corresponding tcpci callback tcpci_cable_comm_capable returns this value.
The tcpm will primarily use this in later patches to determine if the port
can transmit and receive SOP' messages.

Maxim based tcpci drivers are capable of SOP' communication, so the
cable_comm_capable flag is set to true.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-17-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: altmodes: add svdm version info for typec cables
RD Babiera [Mon, 8 Jan 2024 19:16:15 +0000 (19:16 +0000)]
usb: typec: altmodes: add svdm version info for typec cables

Add typec_cable_set_svdm_version and typec_get_cable_svdm version symbols.
Cables can operate under a lower PD revision than the port partner, and the
max SVDM version is tied to the PD revision. So, typec_cable maintains its
own svdm_version.

Add typec_altmode_get_cable_svdm_version to return the cable's negotiated
svdm_version for altmode drivers to use.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-16-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: altmodes: add typec_cable_ops to typec_altmode
RD Babiera [Mon, 8 Jan 2024 19:16:14 +0000 (19:16 +0000)]
usb: typec: altmodes: add typec_cable_ops to typec_altmode

Add typec_cable_ops struct for enter, exit, and vdm. The struct is added
to typec_altmode so port alt modes can have access to partner and cable
specific callbacks, and alt mode drivers can specify operations over SOP'
and SOP'' without modifying the existing API.

typec_port_register_cable_ops is added as a new symbol for port drivers
to use to register cable operations to their registered port alt modes.

Signed-off-by: RD Babiera <rdbabiera@google.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240108191620.987785-15-rdbabiera@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: phy: generic: Disable vbus on removal
Sean Anderson [Tue, 23 Jan 2024 22:51:11 +0000 (17:51 -0500)]
usb: phy: generic: Disable vbus on removal

If we enabled vbus, we need to balance that with a disable.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/20240123225111.1629405-5-sean.anderson@seco.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: phy: generic: Implement otg->set_vbus
Sean Anderson [Tue, 23 Jan 2024 22:51:10 +0000 (17:51 -0500)]
usb: phy: generic: Implement otg->set_vbus

Some USB controller drivers call otg_set_vbus when entering host or
device mode. Implement this callback so that VBUS can be turned on and
off automatically. This is especially useful when there is no property
for a VBUS supply in the controller's binding.

This results in a change in semantics of the vbus_draw regulator.
Whereas before it represented the VBUS supplied by an A-Device when we
acted as a B-Device, now it represents an internal VBUS source.
Accordingly, we no longer set the current limit or enable/disable the
bus from nop_gpio_vbus_thread. Because this supply was never initialized
before the previous commit, there should be no change in behavior.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/20240123225111.1629405-4-sean.anderson@seco.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: phy: generic: Get the vbus supply
Sean Anderson [Tue, 23 Jan 2024 22:51:09 +0000 (17:51 -0500)]
usb: phy: generic: Get the vbus supply

While support for working with a vbus was added, the regulator was never
actually gotten (despite what was documented). Fix this by actually
getting the supply from the device tree.

Fixes: 7acc9973e3c4 ("usb: phy: generic: add vbus support")
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/20240123225111.1629405-3-sean.anderson@seco.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agodt-bindings: usb: usb-nop-xceiv: Repurpose vbus-regulator
Sean Anderson [Tue, 23 Jan 2024 22:51:08 +0000 (17:51 -0500)]
dt-bindings: usb: usb-nop-xceiv: Repurpose vbus-regulator

The vbus-regulator property was never actually read from the device tree.
Introduce a new property vbus-supply to represent the regulator powering
the VBUS when acting as an A-Device. This supply will be enabled and
disabled as necessary. Note that this is different from vbus-regulator,
which represented the available current available to draw from VBUS in
B-Device mode. Because no one was using vbus-regulator, remove it.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240123225111.1629405-2-sean.anderson@seco.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: mtu3: Add MT8195 MTU3 ip-sleep wakeup support
AngeloGioacchino Del Regno [Mon, 22 Jan 2024 11:18:09 +0000 (12:18 +0100)]
usb: mtu3: Add MT8195 MTU3 ip-sleep wakeup support

Add support for the ip-sleep wakeup functionality on the three MTU3
controllers found on the MT8195 SoC.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20240122111809.148546-2-angelogioacchino.delregno@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agodt-bindings: usb: mtu3: Add MT8195 MTU3 ip-sleep support
AngeloGioacchino Del Regno [Mon, 22 Jan 2024 11:18:08 +0000 (12:18 +0100)]
dt-bindings: usb: mtu3: Add MT8195 MTU3 ip-sleep support

Of the four USB controllers present on the MediaTek MT8195 SoC, three
of them (0, 2 and 3) are behind MTU3: add wakeup controls for them.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240122111809.148546-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agodt-bindings: usb: Clean-up "usb-phy" constraints
Rob Herring [Wed, 24 Jan 2024 19:07:24 +0000 (13:07 -0600)]
dt-bindings: usb: Clean-up "usb-phy" constraints

"usb-phy" has multiple type definitions. Unify the type with the looser
definition, phandle-array, as there are cases with multiple entries
(USB2 and USB3). However, the 'phandle-array' type alone is a bit
ambiguous. It can be either just an array of phandles or an array of
phandles plus args. "usb-phy" is the former and needs to constrain each
entry to a single phandle value.

Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240124190725.1554080-1-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agodt-bindings: usb: add common Type-C USB Switch schema
Krzysztof Kozlowski [Mon, 22 Jan 2024 09:44:06 +0000 (10:44 +0100)]
dt-bindings: usb: add common Type-C USB Switch schema

Several bindings implement parts of Type-C USB orientation and mode
switching, and retiming.  Keep definition of such properties in one
place, new usb-switch schema, to avoid duplicate defines.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240122094406.32198-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: core: add phy notify connect and disconnect
Stanley Chang [Wed, 13 Dec 2023 03:10:09 +0000 (11:10 +0800)]
usb: core: add phy notify connect and disconnect

In Realtek SoC, the parameter of usb phy is designed to can dynamic
tuning base on port status. Therefore, add a notify callback of generic
phy driver when usb device connect and disconnect change.

The Realtek phy driver is designed to dynamically adjust disconnection
level and calibrate phy parameters. When the device connected bit changes
and when the disconnected bit changes, do connection change notification:

Check if portstatus is USB_PORT_STAT_CONNECTION and portchange is
USB_PORT_STAT_C_CONNECTION.
1. The device is connected, the driver lowers the disconnection level and
   calibrates the phy parameters.
2. The device disconnects, the driver increases the disconnect level and
   calibrates the phy parameters.

Generic phy driver in usb core framework does not support device connect
and disconnect notifications. Therefore, we add an api to notify phy
the connection changes.

Additionally, the generic phy only specifies primary_hcd in the original
design. Added specific "usb2-phy" on primary_hcd and "usb3-phy" on
shared_hcd.

Signed-off-by: Stanley Chang <stanley_chang@realtek.com>
Link: https://lore.kernel.org/r/20231213031203.4911-4-stanley_chang@realtek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agophy: realtek: usb: add new driver for the Realtek RTD SoC USB 3.0 PHY
Stanley Chang [Wed, 13 Dec 2023 03:10:08 +0000 (11:10 +0800)]
phy: realtek: usb: add new driver for the Realtek RTD SoC USB 3.0 PHY

Realtek DHC (digital home center) RTD SoCs support DWC3 XHCI USB
controller. Added the driver to drive the USB 3.0 PHY transceivers.

Note: New driver, remove the port status notification on legacy USB PHY.
Use the generic PHY to notify the usb device connect and disconnect.
To avoid using these PHYs would require describing the very same
PHY using both the generic "phy" property and the deprecated "usb-phy"
property.

Signed-off-by: Stanley Chang <stanley_chang@realtek.com>
Link: https://lore.kernel.org/r/20231213031203.4911-3-stanley_chang@realtek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agophy: realtek: usb: add new driver for the Realtek RTD SoC USB 2.0 PHY
Stanley Chang [Wed, 13 Dec 2023 03:10:07 +0000 (11:10 +0800)]
phy: realtek: usb: add new driver for the Realtek RTD SoC USB 2.0 PHY

Realtek DHC (digital home center) RTD SoCs support DWC3 XHCI USB
controller. Added the driver to drive the USB 2.0 PHY transceivers.

Note: New driver,remove the port status notification on legacy USB PHY.
Use the generic PHY to notify the usb device connect and disconnect.
To avoid using these PHYs would require describing the very same
PHY using both the generic "phy" property and the deprecated "usb-phy"
property.

Signed-off-by: Stanley Chang <stanley_chang@realtek.com>
Link: https://lore.kernel.org/r/20231213031203.4911-2-stanley_chang@realtek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agophy: core: add notify_connect and notify_disconnect callback
Stanley Chang [Wed, 13 Dec 2023 03:10:06 +0000 (11:10 +0800)]
phy: core: add notify_connect and notify_disconnect callback

In Realtek SoC, the parameter of usb phy is designed to be able to
do dynamic tuning based in the port status. Therefore, add a notify
callback of phy driver when usb connection/disconnection change.

Signed-off-by: Stanley Chang <stanley_chang@realtek.com>
Link: https://lore.kernel.org/r/20231213031203.4911-1-stanley_chang@realtek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: core: Make default authorization mode configurable
Niko Mauno [Fri, 5 Jan 2024 11:49:56 +0000 (13:49 +0200)]
usb: core: Make default authorization mode configurable

Make the default USB device authorization mode configurable at build
time. This is useful for systems that require a mode that is stricter
than the standard setting, as it avoids relying on the kernel command
line being properly set.

Signed-off-by: Niko Mauno <niko.mauno@vaisala.com>
Link: https://lore.kernel.org/r/20240105114956.30714-2-niko.mauno@vaisala.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: core: Amend initial authorized_default value
Niko Mauno [Fri, 5 Jan 2024 11:49:55 +0000 (13:49 +0200)]
usb: core: Amend initial authorized_default value

Since the wireless USB implementation has been removed and since the
behavior with authorized_default values -1 and 1 is now effectively
same, change the initial value to latter in order to stop using the
leftover value. The former value can still be passed as a module
parameter to retain backwards compatibility.

Signed-off-by: Niko Mauno <niko.mauno@vaisala.com>
Link: https://lore.kernel.org/r/20240105114956.30714-1-niko.mauno@vaisala.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: host: Add ac5 to EHCI Orion
Elad Nachman [Sun, 14 Jan 2024 17:21:54 +0000 (19:21 +0200)]
usb: host: Add ac5 to EHCI Orion

Add support for ac5 to the EHCI Orion platform driver.
The ac5 SOC has DDR starting at offset 0x2_0000_0000,
Hence it requires a larger than 32-bit DMA mask to operate.
Move the dma mask to be pointed by the OF match data, and
use that match data when initializng the DMA mask.

Signed-off-by: Elad Nachman <enachman@marvell.com>
Link: https://lore.kernel.org/r/20240114172154.2622275-3-enachman@marvell.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agodt-bindings: usb: Add Marvell ac5
Elad Nachman [Sun, 14 Jan 2024 17:21:53 +0000 (19:21 +0200)]
dt-bindings: usb: Add Marvell ac5

Add Marvell ac5 device tree bindings to generic EHCI.
This compatible enables the Marvell Orion platform code
to properly configure the DMA mask for the Marvell AC5 SOC.

Signed-off-by: Elad Nachman <enachman@marvell.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240114172154.2622275-2-enachman@marvell.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agoucsi_ccg: Refine the UCSI Interrupt handling
Haotien Hsu [Fri, 26 Jan 2024 03:01:15 +0000 (11:01 +0800)]
ucsi_ccg: Refine the UCSI Interrupt handling

With the Cypress CCGx Type-C controller the following error is
sometimes observed on boot:
[   16.087147] ucsi_ccg 1-0008: failed to reset PPM!
[   16.087319] ucsi_ccg 1-0008: PPM init failed (-110)

When the above timeout occurs the following happens:
1. The function ucsi_reset_ppm() is called to reset UCSI controller.
   This function performs an async write to start reset and then
   polls for completion.
2. An interrupt occurs when the reset completes. In the interrupt
   handler, the OPM field in the INTR_REG is cleared and this clears
   the CCI data in the PPM. Hence, the reset completion status is
   cleared.
3. The function ucsi_reset_ppm() continues to poll for the reset
   completion, but has missed the reset completion event and
   eventually timeouts.

In this patch, we store CCI when handling the interrupt and make
reading after async write gets the correct value.

To align with the CCGx UCSI interface guide, this patch updates the
driver to copy CCI and MESSAGE_IN before they are reset when UCSI
interrupt acknowledged.

When a new command is sent, the driver will clear the old CCI to avoid
ucsi_ccg_read() getting wrong CCI after ucsi_ccg_async_write() when
the UCSI interrupt is not handled.

Finally, acking the UCSI_READ_INT interrupt before calling complete()
in ISR to ensure that the ucsi_ccg_sync_write() would wait for the
interrupt handling to complete.

Signed-off-by: Sing-Han Chen <singhanc@nvidia.com>
Signed-off-by: Haotien Hsu <haotienh@nvidia.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240126030115.3791554-1-haotienh@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: audio-v2: Correct comments for struct uac_clock_selector_descriptor
Alexander Tsoy [Thu, 25 Jan 2024 21:16:35 +0000 (00:16 +0300)]
usb: audio-v2: Correct comments for struct uac_clock_selector_descriptor

This is likely a copy-paste error. Replace "Source" with "Selector" where
appropriate.

Fixes: 7e847894039d7 ("linux/usb/audio.h: split header")
Signed-off-by: Alexander Tsoy <alexander@tsoy.me>
Link: https://lore.kernel.org/r/20240125211635.30140-1-alexander@tsoy.me
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: dwc3-of-simple: Stop using of_reset_control_array_get() directly
Philipp Zabel [Thu, 25 Jan 2024 11:29:08 +0000 (12:29 +0100)]
usb: dwc3-of-simple: Stop using of_reset_control_array_get() directly

Use of_reset_control_array_get_optional_exclusive() instead, it is
implemented as:

  static inline struct reset_control *
  of_reset_control_array_get_optional_exclusive(struct device_node *node)
  {
          return of_reset_control_array_get(node, false, true, true);
  }

This makes the code easier to understand and removes the last remaining
direct use of of_reset_control_array_get(). No functional changes.

This change was made possible by commit f4cc91ddd856 ("usb: dwc3:
of-simple: remove Amlogic GXL and AXG compatibles"), which made the
parameters passed to of_reset_control_array_get() constant.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20240125-dwc3-of-simple-reset-control-array-fix-v2-1-1ab6b52cad21@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: typec: mux: Add ITE IT5205 Alternate Mode Passive MUX driver
AngeloGioacchino Del Regno [Mon, 22 Jan 2024 11:04:46 +0000 (12:04 +0100)]
usb: typec: mux: Add ITE IT5205 Alternate Mode Passive MUX driver

The ITE IT5202 is a USB Type-C Alternate Mode Passive MUX, used for
muxing the SBU lines of a Type-C port with DisplayPort altmode and
also providing an orientation switch.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240122110446.140226-3-angelogioacchino.delregno@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agodt-bindings: usb: Introduce ITE IT5205 Alt. Mode Passive MUX
AngeloGioacchino Del Regno [Mon, 22 Jan 2024 11:04:45 +0000 (12:04 +0100)]
dt-bindings: usb: Introduce ITE IT5205 Alt. Mode Passive MUX

Introduce a binding for the ITE IT5205 Alternate Mode Passive MUX,
used for connecting, disconnecting and switching orientation and
control the SBU signals for alternate modes on USB Type-C ports.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240122110446.140226-2-angelogioacchino.delregno@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: storage: sddr55: fix sloppy typing in sddr55_{read|write}_data()
Karina Yankevich [Sun, 21 Jan 2024 17:29:55 +0000 (20:29 +0300)]
usb: storage: sddr55: fix sloppy typing in sddr55_{read|write}_data()

In sddr55_{read|write}_data(), the address variables are needlessly typed
as *unsigned long* -- which is 32-bit type on the 32-bit arches and 64-bit
type on the 64-bit arches; those variables' value should fit into just 3
command bytes and consists of 10-bit block # (or at least the max block #
seems to be 1023) and 4-/5-bit page # within a block, so 32-bit *unsigned*
*int* type should be more than enough...

Found by Linux Verification Center (linuxtesting.org) with the Svace static
analysis tool.

[Sergey: rewrote the patch subject/description]

Signed-off-by: Karina Yankevich <k.yankevich@omp.ru>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/4c9485f2-0bfc-591b-bfe7-2059289b554e@omp.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agousb: usb_autopm_get_interface use modern helper
Oliver Neukum [Thu, 18 Jan 2024 20:22:55 +0000 (21:22 +0100)]
usb: usb_autopm_get_interface use modern helper

PM core now gives us a primitive that does not touch
the counter in an error case. Use it.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20240118202300.1616-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agoUSB: uapi: OTG 3.0
Oliver Neukum [Thu, 18 Jan 2024 18:36:33 +0000 (19:36 +0100)]
USB: uapi: OTG 3.0

Add attribute bits defined in version 3.0

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20240118183644.16125-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
16 months agoLinux 6.8-rc1
Linus Torvalds [Sun, 21 Jan 2024 22:11:32 +0000 (14:11 -0800)]
Linux 6.8-rc1

16 months agoMerge tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs
Linus Torvalds [Sun, 21 Jan 2024 22:01:12 +0000 (14:01 -0800)]
Merge tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs

Pull more bcachefs updates from Kent Overstreet:
 "Some fixes, Some refactoring, some minor features:

   - Assorted prep work for disk space accounting rewrite

   - BTREE_TRIGGER_ATOMIC: after combining our trigger callbacks, this
     makes our trigger context more explicit

   - A few fixes to avoid excessive transaction restarts on
     multithreaded workloads: fstests (in addition to ktest tests) are
     now checking slowpath counters, and that's shaking out a few bugs

   - Assorted tracepoint improvements

   - Starting to break up bcachefs_format.h and move on disk types so
     they're with the code they belong to; this will make room to start
     documenting the on disk format better.

   - A few minor fixes"

* tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs: (46 commits)
  bcachefs: Improve inode_to_text()
  bcachefs: logged_ops_format.h
  bcachefs: reflink_format.h
  bcachefs; extents_format.h
  bcachefs: ec_format.h
  bcachefs: subvolume_format.h
  bcachefs: snapshot_format.h
  bcachefs: alloc_background_format.h
  bcachefs: xattr_format.h
  bcachefs: dirent_format.h
  bcachefs: inode_format.h
  bcachefs; quota_format.h
  bcachefs: sb-counters_format.h
  bcachefs: counters.c -> sb-counters.c
  bcachefs: comment bch_subvolume
  bcachefs: bch_snapshot::btime
  bcachefs: add missing __GFP_NOWARN
  bcachefs: opts->compression can now also be applied in the background
  bcachefs: Prep work for variable size btree node buffers
  bcachefs: grab s_umount only if snapshotting
  ...

16 months agoMerge tag 'timers-core-2024-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 21 Jan 2024 19:14:40 +0000 (11:14 -0800)]
Merge tag 'timers-core-2024-01-21' of git://git./linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "Updates for time and clocksources:

   - A fix for the idle and iowait time accounting vs CPU hotplug.

     The time is reset on CPU hotplug which makes the accumulated
     systemwide time jump backwards.

   - Assorted fixes and improvements for clocksource/event drivers"

* tag 'timers-core-2024-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tick-sched: Fix idle and iowait sleeptime accounting vs CPU hotplug
  clocksource/drivers/ep93xx: Fix error handling during probe
  clocksource/drivers/cadence-ttc: Fix some kernel-doc warnings
  clocksource/drivers/timer-ti-dm: Fix make W=n kerneldoc warnings
  clocksource/timer-riscv: Add riscv_clock_shutdown callback
  dt-bindings: timer: Add StarFive JH8100 clint
  dt-bindings: timer: thead,c900-aclint-mtimer: separate mtime and mtimecmp regs

16 months agoMerge tag 'powerpc-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Sun, 21 Jan 2024 19:04:29 +0000 (11:04 -0800)]
Merge tag 'powerpc-6.8-2' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Aneesh Kumar:

 - Increase default stack size to 32KB for Book3S

Thanks to Michael Ellerman.

* tag 'powerpc-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64s: Increase default stack size to 32KB

16 months agobcachefs: Improve inode_to_text()
Kent Overstreet [Sun, 21 Jan 2024 17:19:01 +0000 (12:19 -0500)]
bcachefs: Improve inode_to_text()

Add line breaks - inode_to_text() is now much easier to read.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: logged_ops_format.h
Kent Overstreet [Sun, 21 Jan 2024 07:57:45 +0000 (02:57 -0500)]
bcachefs: logged_ops_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: reflink_format.h
Kent Overstreet [Sun, 21 Jan 2024 07:54:47 +0000 (02:54 -0500)]
bcachefs: reflink_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs; extents_format.h
Kent Overstreet [Sun, 21 Jan 2024 07:51:56 +0000 (02:51 -0500)]
bcachefs; extents_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: ec_format.h
Kent Overstreet [Sun, 21 Jan 2024 07:47:14 +0000 (02:47 -0500)]
bcachefs: ec_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: subvolume_format.h
Kent Overstreet [Sun, 21 Jan 2024 07:42:53 +0000 (02:42 -0500)]
bcachefs: subvolume_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: snapshot_format.h
Kent Overstreet [Sun, 21 Jan 2024 07:41:06 +0000 (02:41 -0500)]
bcachefs: snapshot_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: alloc_background_format.h
Kent Overstreet [Sun, 21 Jan 2024 05:01:52 +0000 (00:01 -0500)]
bcachefs: alloc_background_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: xattr_format.h
Kent Overstreet [Sun, 21 Jan 2024 04:59:15 +0000 (23:59 -0500)]
bcachefs: xattr_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: dirent_format.h
Kent Overstreet [Sun, 21 Jan 2024 04:57:10 +0000 (23:57 -0500)]
bcachefs: dirent_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: inode_format.h
Kent Overstreet [Sun, 21 Jan 2024 04:55:39 +0000 (23:55 -0500)]
bcachefs: inode_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs; quota_format.h
Kent Overstreet [Sun, 21 Jan 2024 04:53:52 +0000 (23:53 -0500)]
bcachefs; quota_format.h

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: sb-counters_format.h
Kent Overstreet [Sun, 21 Jan 2024 04:50:56 +0000 (23:50 -0500)]
bcachefs: sb-counters_format.h

bcachefs_format.h has gotten too big; let's do some organizing.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: counters.c -> sb-counters.c
Kent Overstreet [Sun, 21 Jan 2024 04:46:35 +0000 (23:46 -0500)]
bcachefs: counters.c -> sb-counters.c

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: comment bch_subvolume
Kent Overstreet [Sun, 21 Jan 2024 04:44:17 +0000 (23:44 -0500)]
bcachefs: comment bch_subvolume

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: bch_snapshot::btime
Kent Overstreet [Sun, 21 Jan 2024 04:35:41 +0000 (23:35 -0500)]
bcachefs: bch_snapshot::btime

Add a field to bch_snapshot for creation time; this will be important
when we start exposing the snapshot tree to userspace.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: add missing __GFP_NOWARN
Kent Overstreet [Wed, 17 Jan 2024 22:16:07 +0000 (17:16 -0500)]
bcachefs: add missing __GFP_NOWARN

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: opts->compression can now also be applied in the background
Kent Overstreet [Tue, 16 Jan 2024 21:20:21 +0000 (16:20 -0500)]
bcachefs: opts->compression can now also be applied in the background

The "apply this compression method in the background" paths now use the
compression option if background_compression is not set; this means that
setting or changing the compression option will cause existing data to
be compressed accordingly in the background.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: Prep work for variable size btree node buffers
Kent Overstreet [Tue, 16 Jan 2024 18:29:59 +0000 (13:29 -0500)]
bcachefs: Prep work for variable size btree node buffers

bcachefs btree nodes are big - typically 256k - and btree roots are
pinned in memory. As we're now up to 18 btrees, we now have significant
memory overhead in mostly empty btree roots.

And in the future we're going to start enforcing that certain btree node
boundaries exist, to solve lock contention issues - analagous to XFS's
AGIs.

Thus, we need to start allocating smaller btree node buffers when we
can. This patch changes code that refers to the filesystem constant
c->opts.btree_node_size to refer to the btree node buffer size -
btree_buf_bytes() - where appropriate.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: grab s_umount only if snapshotting
Su Yue [Mon, 15 Jan 2024 02:21:25 +0000 (10:21 +0800)]
bcachefs: grab s_umount only if snapshotting

When I was testing mongodb over bcachefs with compression,
there is a lockdep warning when snapshotting mongodb data volume.

$ cat test.sh
prog=bcachefs

$prog subvolume create /mnt/data
$prog subvolume create /mnt/data/snapshots

while true;do
    $prog subvolume snapshot /mnt/data /mnt/data/snapshots/$(date +%s)
    sleep 1s
done

$ cat /etc/mongodb.conf
systemLog:
  destination: file
  logAppend: true
  path: /mnt/data/mongod.log

storage:
  dbPath: /mnt/data/

lockdep reports:
[ 3437.452330] ======================================================
[ 3437.452750] WARNING: possible circular locking dependency detected
[ 3437.453168] 6.7.0-rc7-custom+ #85 Tainted: G            E
[ 3437.453562] ------------------------------------------------------
[ 3437.453981] bcachefs/35533 is trying to acquire lock:
[ 3437.454325] ffffa0a02b2b1418 (sb_writers#10){.+.+}-{0:0}, at: filename_create+0x62/0x190
[ 3437.454875]
               but task is already holding lock:
[ 3437.455268] ffffa0a02b2b10e0 (&type->s_umount_key#48){.+.+}-{3:3}, at: bch2_fs_file_ioctl+0x232/0xc90 [bcachefs]
[ 3437.456009]
               which lock already depends on the new lock.

[ 3437.456553]
               the existing dependency chain (in reverse order) is:
[ 3437.457054]
               -> #3 (&type->s_umount_key#48){.+.+}-{3:3}:
[ 3437.457507]        down_read+0x3e/0x170
[ 3437.457772]        bch2_fs_file_ioctl+0x232/0xc90 [bcachefs]
[ 3437.458206]        __x64_sys_ioctl+0x93/0xd0
[ 3437.458498]        do_syscall_64+0x42/0xf0
[ 3437.458779]        entry_SYSCALL_64_after_hwframe+0x6e/0x76
[ 3437.459155]
               -> #2 (&c->snapshot_create_lock){++++}-{3:3}:
[ 3437.459615]        down_read+0x3e/0x170
[ 3437.459878]        bch2_truncate+0x82/0x110 [bcachefs]
[ 3437.460276]        bchfs_truncate+0x254/0x3c0 [bcachefs]
[ 3437.460686]        notify_change+0x1f1/0x4a0
[ 3437.461283]        do_truncate+0x7f/0xd0
[ 3437.461555]        path_openat+0xa57/0xce0
[ 3437.461836]        do_filp_open+0xb4/0x160
[ 3437.462116]        do_sys_openat2+0x91/0xc0
[ 3437.462402]        __x64_sys_openat+0x53/0xa0
[ 3437.462701]        do_syscall_64+0x42/0xf0
[ 3437.462982]        entry_SYSCALL_64_after_hwframe+0x6e/0x76
[ 3437.463359]
               -> #1 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}:
[ 3437.463843]        down_write+0x3b/0xc0
[ 3437.464223]        bch2_write_iter+0x5b/0xcc0 [bcachefs]
[ 3437.464493]        vfs_write+0x21b/0x4c0
[ 3437.464653]        ksys_write+0x69/0xf0
[ 3437.464839]        do_syscall_64+0x42/0xf0
[ 3437.465009]        entry_SYSCALL_64_after_hwframe+0x6e/0x76
[ 3437.465231]
               -> #0 (sb_writers#10){.+.+}-{0:0}:
[ 3437.465471]        __lock_acquire+0x1455/0x21b0
[ 3437.465656]        lock_acquire+0xc6/0x2b0
[ 3437.465822]        mnt_want_write+0x46/0x1a0
[ 3437.465996]        filename_create+0x62/0x190
[ 3437.466175]        user_path_create+0x2d/0x50
[ 3437.466352]        bch2_fs_file_ioctl+0x2ec/0xc90 [bcachefs]
[ 3437.466617]        __x64_sys_ioctl+0x93/0xd0
[ 3437.466791]        do_syscall_64+0x42/0xf0
[ 3437.466957]        entry_SYSCALL_64_after_hwframe+0x6e/0x76
[ 3437.467180]
               other info that might help us debug this:

[ 3437.469670] 2 locks held by bcachefs/35533:
               other info that might help us debug this:

[ 3437.467507] Chain exists of:
                 sb_writers#10 --> &c->snapshot_create_lock --> &type->s_umount_key#48

[ 3437.467979]  Possible unsafe locking scenario:

[ 3437.468223]        CPU0                    CPU1
[ 3437.468405]        ----                    ----
[ 3437.468585]   rlock(&type->s_umount_key#48);
[ 3437.468758]                                lock(&c->snapshot_create_lock);
[ 3437.469030]                                lock(&type->s_umount_key#48);
[ 3437.469291]   rlock(sb_writers#10);
[ 3437.469434]
                *** DEADLOCK ***

[ 3437.469670] 2 locks held by bcachefs/35533:
[ 3437.469838]  #0: ffffa0a02ce00a88 (&c->snapshot_create_lock){++++}-{3:3}, at: bch2_fs_file_ioctl+0x1e3/0xc90 [bcachefs]
[ 3437.470294]  #1: ffffa0a02b2b10e0 (&type->s_umount_key#48){.+.+}-{3:3}, at: bch2_fs_file_ioctl+0x232/0xc90 [bcachefs]
[ 3437.470744]
               stack backtrace:
[ 3437.470922] CPU: 7 PID: 35533 Comm: bcachefs Kdump: loaded Tainted: G            E      6.7.0-rc7-custom+ #85
[ 3437.471313] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014
[ 3437.471694] Call Trace:
[ 3437.471795]  <TASK>
[ 3437.471884]  dump_stack_lvl+0x57/0x90
[ 3437.472035]  check_noncircular+0x132/0x150
[ 3437.472202]  __lock_acquire+0x1455/0x21b0
[ 3437.472369]  lock_acquire+0xc6/0x2b0
[ 3437.472518]  ? filename_create+0x62/0x190
[ 3437.472683]  ? lock_is_held_type+0x97/0x110
[ 3437.472856]  mnt_want_write+0x46/0x1a0
[ 3437.473025]  ? filename_create+0x62/0x190
[ 3437.473204]  filename_create+0x62/0x190
[ 3437.473380]  user_path_create+0x2d/0x50
[ 3437.473555]  bch2_fs_file_ioctl+0x2ec/0xc90 [bcachefs]
[ 3437.473819]  ? lock_acquire+0xc6/0x2b0
[ 3437.474002]  ? __fget_files+0x2a/0x190
[ 3437.474195]  ? __fget_files+0xbc/0x190
[ 3437.474380]  ? lock_release+0xc5/0x270
[ 3437.474567]  ? __x64_sys_ioctl+0x93/0xd0
[ 3437.474764]  ? __pfx_bch2_fs_file_ioctl+0x10/0x10 [bcachefs]
[ 3437.475090]  __x64_sys_ioctl+0x93/0xd0
[ 3437.475277]  do_syscall_64+0x42/0xf0
[ 3437.475454]  entry_SYSCALL_64_after_hwframe+0x6e/0x76
[ 3437.475691] RIP: 0033:0x7f2743c313af
======================================================

In __bch2_ioctl_subvolume_create(), we grab s_umount unconditionally
and unlock it at the end of the function. There is a comment
"why do we need this lock?" about the lock coming from
commit 42d237320e98 ("bcachefs: Snapshot creation, deletion")
The reason is that __bch2_ioctl_subvolume_create() calls
sync_inodes_sb() which enforce locked s_umount to writeback all dirty
nodes before doing snapshot works.

Fix it by read locking s_umount for snapshotting only and unlocking
s_umount after sync_inodes_sb().

Signed-off-by: Su Yue <glass.su@suse.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit
Su Yue [Tue, 16 Jan 2024 11:05:37 +0000 (19:05 +0800)]
bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit

bch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut.
It should be freed by kvfree not kfree.
Or umount will triger:

[  406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008
[  406.830676 ] #PF: supervisor read access in kernel mode
[  406.831643 ] #PF: error_code(0x0000) - not-present page
[  406.832487 ] PGD 0 P4D 0
[  406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI
[  406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G           OE      6.7.0-rc7-custom+ #90
[  406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014
[  406.835796 ] RIP: 0010:kfree+0x62/0x140
[  406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 <48> 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 48 8b 07 f6
[  406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286
[  406.838213 ] RAX: ffffe7b487148000 RBX: ffffb9d645200000 RCX: ffffb9d641607dc4
[  406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000
[  406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 0000000000000001
[  406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80
[  406.840055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000
[  406.840451 ] FS:  00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000
[  406.840851 ] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0
[  406.841464 ] Call Trace:
[  406.841583 ]  <TASK>
[  406.841682 ]  ? __die+0x1f/0x70
[  406.841828 ]  ? page_fault_oops+0x159/0x470
[  406.842014 ]  ? fixup_exception+0x22/0x310
[  406.842198 ]  ? exc_page_fault+0x1ed/0x200
[  406.842382 ]  ? asm_exc_page_fault+0x22/0x30
[  406.842574 ]  ? bch2_fs_release+0x54/0x280 [bcachefs]
[  406.842842 ]  ? kfree+0x62/0x140
[  406.842988 ]  ? kfree+0x104/0x140
[  406.843138 ]  bch2_fs_release+0x54/0x280 [bcachefs]
[  406.843390 ]  kobject_put+0xb7/0x170
[  406.843552 ]  deactivate_locked_super+0x2f/0xa0
[  406.843756 ]  cleanup_mnt+0xba/0x150
[  406.843917 ]  task_work_run+0x59/0xa0
[  406.844083 ]  exit_to_user_mode_prepare+0x197/0x1a0
[  406.844302 ]  syscall_exit_to_user_mode+0x16/0x40
[  406.844510 ]  do_syscall_64+0x4e/0xf0
[  406.844675 ]  entry_SYSCALL_64_after_hwframe+0x6e/0x76
[  406.844907 ] RIP: 0033:0x7f0a2664e4fb

Signed-off-by: Su Yue <glass.su@suse.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: bios must be 512 byte algined
Kent Overstreet [Tue, 16 Jan 2024 16:38:04 +0000 (11:38 -0500)]
bcachefs: bios must be 512 byte algined

Fixes: 023f9ac9f70f bcachefs: Delete dio read alignment check
Reported-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: remove redundant variable tmp
Colin Ian King [Tue, 16 Jan 2024 11:07:23 +0000 (11:07 +0000)]
bcachefs: remove redundant variable tmp

The variable tmp is being assigned a value but it isn't being
read afterwards. The assignment is redundant and so tmp can be
removed.

Cleans up clang scan build warning:
warning: Although the value stored to 'ret' is used in the enclosing
expression, the value is never actually read from 'ret'
[deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: Improve trace_trans_restart_relock
Kent Overstreet [Tue, 16 Jan 2024 01:40:06 +0000 (20:40 -0500)]
bcachefs: Improve trace_trans_restart_relock

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: Fix excess transaction restarts in __bchfs_fallocate()
Kent Overstreet [Tue, 16 Jan 2024 01:37:23 +0000 (20:37 -0500)]
bcachefs: Fix excess transaction restarts in __bchfs_fallocate()

drop_locks_do() should not be used in a fastpath without first trying
the do in nonblocking mode - the unlock and relock will cause excessive
transaction restarts and potentially livelocking with other threads that
are contending for the same locks.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: extents_to_bp_state
Kent Overstreet [Mon, 15 Jan 2024 23:19:52 +0000 (18:19 -0500)]
bcachefs: extents_to_bp_state

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: bkey_and_val_eq()
Kent Overstreet [Mon, 15 Jan 2024 23:08:32 +0000 (18:08 -0500)]
bcachefs: bkey_and_val_eq()

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: Better journal tracepoints
Kent Overstreet [Mon, 15 Jan 2024 22:59:51 +0000 (17:59 -0500)]
bcachefs: Better journal tracepoints

Factor out bch2_journal_bufs_to_text(), and use it in the
journal_entry_full() tracepoint; when we can't get a journal reservation
we need to know the outstanding journal entry sizes to know if the
problem is due to excessive flushing.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: Print size of superblock with space allocated
Kent Overstreet [Mon, 15 Jan 2024 22:57:44 +0000 (17:57 -0500)]
bcachefs: Print size of superblock with space allocated

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: Avoid flushing the journal in the discard path
Kent Overstreet [Mon, 15 Jan 2024 22:56:22 +0000 (17:56 -0500)]
bcachefs: Avoid flushing the journal in the discard path

When issuing discards, we may need to flush the journal if there's too
many buckets that can't be discarded until a journal flush.

But the heuristic was bad; we should be comparing the number of buckets
that need to flushes against the number of free buckets, not the number
of buckets we saw.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: Improve move_extent tracepoint
Kent Overstreet [Mon, 15 Jan 2024 20:33:39 +0000 (15:33 -0500)]
bcachefs: Improve move_extent tracepoint

Also print out the data_opts, so that we can see what specifically is
being done to an extent.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: Add missing bch2_moving_ctxt_flush_all()
Kent Overstreet [Mon, 15 Jan 2024 20:06:43 +0000 (15:06 -0500)]
bcachefs: Add missing bch2_moving_ctxt_flush_all()

This fixes a bug with rebalance IOs getting stuck with reads completed,
but writes never being issued.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: Re-add move_extent_write tracepoint
Kent Overstreet [Mon, 15 Jan 2024 20:04:40 +0000 (15:04 -0500)]
bcachefs: Re-add move_extent_write tracepoint

It appears this was accidentally deleted at some point - also, do a bit
of cleanup.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: bch2_kthread_io_clock_wait() no longer sleeps until full amount
Kent Overstreet [Mon, 15 Jan 2024 19:15:26 +0000 (14:15 -0500)]
bcachefs: bch2_kthread_io_clock_wait() no longer sleeps until full amount

Drop t he loop in bch2_kthread_io_clock_wait(): this allows the code
that uses it to be woken up for other reasons, and fixes a bug where
rebalance wouldn't wake up when a scan was requested.

This raises the possibility of spurious wakeups, but callers should
always be able to handle that reasonably well.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: Add .val_to_text() for KEY_TYPE_cookie
Kent Overstreet [Mon, 15 Jan 2024 19:15:03 +0000 (14:15 -0500)]
bcachefs: Add .val_to_text() for KEY_TYPE_cookie

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: Don't pass memcmp() as a pointer
Kent Overstreet [Mon, 15 Jan 2024 19:12:43 +0000 (14:12 -0500)]
bcachefs: Don't pass memcmp() as a pointer

Some (buggy!) compilers have issues with this.

Fixes: https://github.com/koverstreet/bcachefs/issues/625
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agoMerge tag 'header_cleanup-2024-01-20' of https://evilpiepirate.org/git/bcachefs
Linus Torvalds [Sun, 21 Jan 2024 18:21:43 +0000 (10:21 -0800)]
Merge tag 'header_cleanup-2024-01-20' of https://evilpiepirate.org/git/bcachefs

Pull header fix from Kent Overstreet:
 "Just one small fixup for the RT build"

* tag 'header_cleanup-2024-01-20' of https://evilpiepirate.org/git/bcachefs:
  spinlock: Fix failing build for PREEMPT_RT

16 months agobcachefs: Reduce would_deadlock restarts
Kent Overstreet [Thu, 11 Jan 2024 04:47:04 +0000 (23:47 -0500)]
bcachefs: Reduce would_deadlock restarts

We don't have to take locks in any particular ordering - we'll make
forward progress just fine - but if we try to stick to an ordering, it
can help to avoid excessive would_deadlock transaction restarts.

This tweaks the reflink path to take extents btree locks in the right
order.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: bch2_trans_account_disk_usage_change()
Kent Overstreet [Sat, 11 Nov 2023 20:08:36 +0000 (15:08 -0500)]
bcachefs: bch2_trans_account_disk_usage_change()

The disk space accounting rewrite is splitting out accounting for each
replicas set - those are moving to btree keys, instead of percpu
counters.

This breaks bch2_trans_fs_usage_apply() up, splitting out the part we
will still need.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: bch_fs_usage_base
Kent Overstreet [Fri, 17 Nov 2023 05:03:45 +0000 (00:03 -0500)]
bcachefs: bch_fs_usage_base

Split out base filesystem usage into its own type; prep work for
breaking up bch2_trans_fs_usage_apply().

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: bch2_prt_compression_type()
Kent Overstreet [Sun, 7 Jan 2024 02:01:47 +0000 (21:01 -0500)]
bcachefs: bch2_prt_compression_type()

bounds checking helper, since compression types are extensible

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: helpers for printing data types
Kent Overstreet [Sun, 7 Jan 2024 01:57:43 +0000 (20:57 -0500)]
bcachefs: helpers for printing data types

We need bounds checking since new versions may introduce new data types.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: BTREE_TRIGGER_ATOMIC
Kent Overstreet [Sun, 7 Jan 2024 22:14:46 +0000 (17:14 -0500)]
bcachefs: BTREE_TRIGGER_ATOMIC

Add a new flag to be explicit about when we're running atomic triggers.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: drop to_text code for obsolete bps in alloc keys
Kent Overstreet [Sun, 7 Jan 2024 00:47:09 +0000 (19:47 -0500)]
bcachefs: drop to_text code for obsolete bps in alloc keys

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: eytzinger_for_each() declares loop iter
Kent Overstreet [Sun, 7 Jan 2024 00:29:14 +0000 (19:29 -0500)]
bcachefs: eytzinger_for_each() declares loop iter

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: Don't log errors if BCH_WRITE_ALLOC_NOWAIT
Kent Overstreet [Thu, 11 Jan 2024 04:08:30 +0000 (23:08 -0500)]
bcachefs: Don't log errors if BCH_WRITE_ALLOC_NOWAIT

Previously, we added logging in the write path to ensure that any
unexpected errors getting reported to userspace have a log message; but
BCH_WRITE_ALLOC_NOWAIT is a special case, it's used for promotes where
errors are expected and not reported out to userspace - so we need to
silence those.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agobcachefs: fix memleak in bch2_split_devs
Su Yue [Mon, 8 Jan 2024 15:11:08 +0000 (23:11 +0800)]
bcachefs: fix memleak in bch2_split_devs

The pointer dev_name can be modified by strseq(),
then causes the memleak:

unreferenced object 0xffff9d08a2916c80 (size 32):
  comm "mount.bcachefs", pid 9090, jiffies 4295856224 (age 17.564s)
  hex dump (first 32 bytes):
    2f 64 65 76 2f 6d 61 70 70 65 72 2f 74 65 73 74  /dev/mapper/test
    2d 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00  -0..............
  backtrace:
    [<00000000c5d3be7d>] __kmem_cache_alloc_node+0x1f3/0x2c0
    [<0000000052215d26>] __kmalloc_node_track_caller+0x51/0x150
    [<0000000069fea956>] kstrdup+0x32/0x60
    [<000000000877fcf1>] bch2_split_devs+0x3f/0x150 [bcachefs]
    [<000000007ee93204>] bch2_mount+0xcb/0x640 [bcachefs]
    [<000000002dd1e04b>] legacy_get_tree+0x30/0x60
    [<000000006afc31d3>] vfs_get_tree+0x28/0xf0
    [<000000007b0c538e>] path_mount+0x475/0xb60
    [<0000000092de5882>] __x64_sys_mount+0x105/0x140
    [<0000000054fc05d8>] do_syscall_64+0x42/0xf0
    [<00000000df584910>] entry_SYSCALL_64_after_hwframe+0x6e/0x76

Fix it by copy pointer dev_name at beginning and free the copied
pointer at end.

Signed-off-by: Su Yue <glass.su@suse.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
16 months agoMerge tag 'v6.8-rc-part2-smb-client' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sun, 21 Jan 2024 00:48:07 +0000 (16:48 -0800)]
Merge tag 'v6.8-rc-part2-smb-client' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client updates from Steve French:
 "Various smb client fixes, including multichannel and for SMB3.1.1
  POSIX extensions:

   - debugging improvement (display start time for stats)

   - two reparse point handling fixes

   - various multichannel improvements and fixes

   - SMB3.1.1 POSIX extensions open/create parsing fix

   - retry (reconnect) improvement including new retrans mount parm, and
     handling of two additional return codes that need to be retried on

   - two minor cleanup patches and another to remove duplicate query
     info code

   - two documentation cleanup, and one reviewer email correction"

* tag 'v6.8-rc-part2-smb-client' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: update iface_last_update on each query-and-update
  cifs: handle servers that still advertise multichannel after disabling
  cifs: new mount option called retrans
  cifs: reschedule periodic query for server interfaces
  smb: client: don't clobber ->i_rdev from cached reparse points
  smb: client: get rid of smb311_posix_query_path_info()
  smb: client: parse owner/group when creating reparse points
  smb: client: fix parsing of SMB3.1.1 POSIX create context
  cifs: update known bugs mentioned in kernel docs for cifs
  cifs: new nt status codes from MS-SMB2
  cifs: pick channel for tcon and tdis
  cifs: open_cached_dir should not rely on primary channel
  smb3: minor documentation updates
  Update MAINTAINERS email address
  cifs: minor comment cleanup
  smb3: show beginning time for per share stats
  cifs: remove redundant variable tcon_exist

16 months agoMerge tag 'dmaengine-fix-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 20 Jan 2024 23:03:25 +0000 (15:03 -0800)]
Merge tag 'dmaengine-fix-6.8-rc1' of git://git./linux/kernel/git/vkoul/dmaengine

Pull dmaengine updates from Vinod Koul:
 "New support:
   - Loongson LS2X APB DMA controller
   - sf-pdma: mpfs-pdma support
   - Qualcomm X1E80100 GPI dma controller support

  Updates:
   - Xilinx XDMA updates to support interleaved DMA transfers
   - TI PSIL threads for AM62P and J722S and cfg register regions
     description
   - axi-dmac Improving the cyclic DMA transfers
   - Tegra Support dma-channel-mask property
   - Remaining platform remove callback returning void conversions

 Driver fixes for:
   - Xilinx xdma driver operator precedence and initialization fix
   - Excess kernel-doc warning fix in imx-sdma xilinx xdma drivers
   - format-overflow warning fix for rz-dmac, sh usb dmac drivers
   - 'output may be truncated' fix for shdma, fsl-qdma and dw-edma
     drivers"

* tag 'dmaengine-fix-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (58 commits)
  dmaengine: dw-edma: increase size of 'name' in debugfs code
  dmaengine: fsl-qdma: increase size of 'irq_name'
  dmaengine: shdma: increase size of 'dev_id'
  dmaengine: xilinx: xdma: Fix kernel-doc warnings
  dmaengine: usb-dmac: Avoid format-overflow warning
  dmaengine: sh: rz-dmac: Avoid format-overflow warning
  dmaengine: imx-sdma: fix Excess kernel-doc warnings
  dmaengine: xilinx: xdma: Fix initialization location of desc in xdma_channel_isr()
  dmaengine: xilinx: xdma: Fix operator precedence in xdma_prep_interleaved_dma()
  dmaengine: xilinx: xdma: statify xdma_prep_interleaved_dma
  dmaengine: xilinx: xdma: Workaround truncation compilation error
  dmaengine: pl330: issue_pending waits until WFP state
  dmaengine: xilinx: xdma: Implement interleaved DMA transfers
  dmaengine: xilinx: xdma: Prepare the introduction of interleaved DMA transfers
  dmaengine: xilinx: xdma: Add transfer error reporting
  dmaengine: xilinx: xdma: Add error checking in xdma_channel_isr()
  dmaengine: xilinx: xdma: Rework xdma_terminate_all()
  dmaengine: xilinx: xdma: Ease dma_pool alignment requirements
  dmaengine: xilinx: xdma: Add necessary macro definitions
  dmaengine: xilinx: xdma: Get rid of unused code
  ...

16 months agoMerge tag 'coccinelle-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawa...
Linus Torvalds [Sat, 20 Jan 2024 22:20:34 +0000 (14:20 -0800)]
Merge tag 'coccinelle-for-6.8' of git://git./linux/kernel/git/jlawall/linux

Pull coccinelle updates from Julia Lawall:
 "Updates to the device_attr_show semantic patch to reflect the new
  guidelines of the Linux kernel documentation.

  The problem was identified by Li Zhijian <lizhijian@fujitsu.com>, who
  proposed an initial fix"

* tag 'coccinelle-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
  coccinelle: device_attr_show: simplify patch case
  coccinelle: device_attr_show: Adapt to the latest Documentation/filesystems/sysfs.rst