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2021-04-09usb: typec: tcpm: update power supply once partner acceptsBadhri Jagan Sridharan
power_supply_changed needs to be called to notify clients after the partner accepts the requested values for the pps case. Also, remove the redundant power_supply_changed at the end of the tcpm_reset_port as power_supply_changed is already called right after usb_type is changed. Fixes: f2a8aa053c176 ("typec: tcpm: Represent source supply through power_supply") Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> Cc: stable <stable@vger.kernel.org> Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20210407200723.1914388-3-badhri@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: typec: tcpm: Address incorrect values of tcpm psy for pps supplyBadhri Jagan Sridharan
tcpm_pd_select_pps_apdo overwrites port->pps_data.min_volt, port->pps_data.max_volt, port->pps_data.max_curr even before port partner accepts the requests. This leaves incorrect values in current_limit and supply_voltage that get exported by "tcpm-source-psy-". Solving this problem by caching the request values in req_min_volt, req_max_volt, req_max_curr, req_out_volt, req_op_curr. min_volt, max_volt, max_curr gets updated once the partner accepts the request. current_limit, supply_voltage gets updated once local port's tcpm enters SNK_TRANSITION_SINK when the accepted current_limit and supply_voltage is enforced. Fixes: f2a8aa053c176 ("typec: tcpm: Represent source supply through power_supply") Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> Cc: stable <stable@vger.kernel.org> Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20210407200723.1914388-2-badhri@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: typec: tcpm: Address incorrect values of tcpm psy for fixed supplyBadhri Jagan Sridharan
tcpm_pd_build_request overwrites current_limit and supply_voltage even before port partner accepts the requests. This leaves stale values in current_limit and supply_voltage that get exported by "tcpm-source-psy-". Solving this problem by caching the request values of current limit/supply voltage in req_current_limit and req_supply_voltage. current_limit/supply_voltage gets updated once the port partner accepts the request. Fixes: f2a8aa053c176 ("typec: tcpm: Represent source supply through power_supply") Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> Cc: stable <stable@vger.kernel.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20210407200723.1914388-1-badhri@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09bus: mhi: fix typo in comments for struct mhi_channel_configJarvis Jiang
The word 'rung' is a typo in below comment, fix it. * @event_ring: The event rung index that services this channel Signed-off-by: Jarvis Jiang <jarvis.w.jiang@gmail.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20210408100220.3853-1-jarvis.w.jiang@gmail.com Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
2021-04-09usb: dwc2: Add exit partial power down before removing driverArtur Petrosyan
When dwc2 core is in partial power down mode loading driver again causes driver fail. Because in that mode registers are not accessible. Added a flow of exiting the partial power down mode to avoid the driver reload failure. Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094615.8AE35A0094@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Fix partial power down exiting by system resumeArtur Petrosyan
Fixes the implementation of exiting from partial power down power saving mode when PC is resumed. Added port connection status checking which prevents exiting from Partial Power Down mode from _dwc2_hcd_resume() if not in Partial Power Down mode. Rearranged the implementation to get rid of many "if" statements. NOTE: Switch case statement is used for hibernation partial power down and clock gating mode determination. In this patch only Partial Power Down is implemented the Hibernation and clock gating implementations are planned to be added. Fixes: 6f6d70597c15 ("usb: dwc2: bus suspend/resume for hosts with DWC2_POWER_DOWN_PARAM_NONE") Cc: <stable@vger.kernel.org> Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094607.1A9BAA0094@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Update partial power down entering by system suspendArtur Petrosyan
With current implementation the port power is being disabled, which is not required by the programming guide. Also, if there is a system which works only in "DWC2_POWER_DOWN_PARAM_NONE" (clock gating) mode the current implementation does not set Gate hclk bit in pcgctl register. Rearranges and updates the implementation of entering to partial power down power saving mode when PC is suspended to get rid of many "if" statements and removes disabling of port power. NOTE: Switch case statement is used for hibernation partial power down and clock gating mode determination. In this patch only Partial Power Down is implemented the Hibernation and clock gating implementations are planned to be added. Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094559.33541A022E@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Fix session request interrupt handlerArtur Petrosyan
According to programming guide in host mode, port power must be turned on in session request interrupt handlers. Fixes: 21795c826a45 ("usb: dwc2: exit hibernation on session request") Cc: <stable@vger.kernel.org> Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094550.75484A0094@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Allow exit partial power down in urb enqueueArtur Petrosyan
When core is in partial power down state and an external hub is connected, upper layer sends URB enqueue request, which results in port reset issue. Added exit from partial power down state to avoid port reset issue and process upper layer request correctly. Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094542.685BAA0094@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Add part. power down exit from dwc2_conn_id_status_change().Artur Petrosyan
Before changing to connector B exiting from Partial Power Down is required. - Added exiting from Partial Power Down mode when connector ID status changes to "connId B". Because if connector ID status changed to B connector while core was in partial power down mode, HANG would accrue from a soft reset. Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094534.4AA7AA022E@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Add exit partial power down when port reset is assertedArtur Petrosyan
Adds Partial Power Down exiting flow when set port feature reset is received in suspended state. Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094526.4DD7AA022E@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Add exit partial power down when port is resumedArtur Petrosyan
Added flow of exiting Partial Power Down in "dwc2_port_resume()" function when core receives resume. NOTE: Switch case statement is used for hibernation partial power down and clock gating mode determination. In this patch only Partial Power Down is implemented the Hibernation and clock gating implementations are planned to be added. Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094518.6DA1DA022E@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Add enter partial power down when port is suspendedArtur Petrosyan
Adds flow of entering Partial Power Down in "dwc2_port_suspend()" function when core receives suspend. NOTE: Switch case statement is used for hibernation partial power down and clock gating mode determination. In this patch only Partial Power Down is implemented the Hibernation and clock gating implementations are planned to be added. Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094510.6C4E9A022E@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Update port suspend/resume function definitions.Artur Petrosyan
Earlier "dwc2_port_suspend()" and "dwc2_port_resume()" functions were implemented without proper description and host or device mode difference. - Added "dwc2_port_suspend" and "dwc2_port_resume" functions to "core.h" header file. - Updated function description in documentation. Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094502.61D18A0232@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Add partial power down exit flow in wakeup intr.Artur Petrosyan
According to programming guide added host partial power down exit flow in wakeup detected interrupt handler. Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094454.5BBCBA0094@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Update enter and exit partial power down functionsArtur Petrosyan
These are wrapper functions which are calling device or host enter/exit partial power down functions. This change is done because we need to separate device and host partial power down functions as the programming flow has a lot of difference between host and device. With this update during partial power down exit driver relies on backup value of "GOTGCTL_CURMODE_HOST" to determine the mode of core before entering to PPD. Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094446.6491BA022E@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Add host partial power down functionsArtur Petrosyan
For host mode Partial Power Down entering and exiting separate functions are needed to implement the logic. Earlier the logic was implemented in one function. Which was confusing the readability. Also both host and device implementations were in the same function. - Added host partial power down functions which must be called by dwc2_enter_partial_power_down()/dwc2_exit_partial_power_down() functions. Added function names: dwc2_host_enter_partial_power_down() dwc2_host_exit_partial_power_down() NOTE: There is a checkpatch "CHECK" warning on "udelay(100)". The delay is needed to properly exit gadget Partial Power Down A delay less than 100 doesn't work. Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094438.56CFBA022E@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09usb: dwc2: Add device partial power down functionsArtur Petrosyan
For device mode Partial Power Down entering and exiting separate functions are needed to implement the logic. Earlier the logic was implemented in one function. Which was confusing the readability. Also both host and device implementations were in the same function. - Added device partial power down functions which must be called by dwc2_enter_partial_power_down()/dwc2_exit_partial_power_down() functions. - Added "in_ppd" flag in "dwc2_hsotg" struct to indicate the core state after entering into partial power down mode. Added function names: dwc2_gadget_enter_partial_power_down() dwc2_gadget_exit_partial_power_down() NOTE: There is a checkpatch "CHECK" warning on "udelay(100)". The delay is needed to properly exit gadget Partial Power Down A delay less than 100 doesn't work. Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com> Signed-off-by: Artur Petrosyan <Arthur.Petrosyan@synopsys.com> Link: https://lore.kernel.org/r/20210408094430.383B9A0094@mailhost.synopsys.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09staging: comedi: Kconfig: Fix COMEDI_TESTS_NI_ROUTES selectionsIan Abbott
The COMEDI_TESTS_NI_ROUTES option currently selects NI_ROUTING, which doesn't exist. It should be selecting COMEDI_NI_ROUTING. Fix it. Selecting COMEDI_TESTS_NI_ROUTES without COMEDI_NI_ROUTING resulted in the following build errors: ERROR: modpost: "ni_lookup_route_register" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_is_cmd_dest" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_find_route_source" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_get_valid_routes" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_count_valid_routes" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_sort_device_routes" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_assign_device_routes" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_find_route_set" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_route_set_has_source" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! ERROR: modpost: "ni_route_to_register" [drivers/staging/comedi/drivers/tests/ni_routes_test.ko] undefined! Reported-by: kernel test robot <lkp@intel.com> Fixes: c82b130616e3 ("staging: comedi: Add Kconfig options to build unit test modules") Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20210409110844.148378-1-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-09x86/traps: Correct exc_general_protection() and math_error() return pathsThomas Tai
Commit 334872a09198 ("x86/traps: Attempt to fixup exceptions in vDSO before signaling") added return statements which bypass calling cond_local_irq_disable(). According to ca4c6a9858c2 ("x86/traps: Make interrupt enable/disable symmetric in C code"), cond_local_irq_disable() is needed because the asm return code no longer disables interrupts. Follow the existing code as an example to use "goto exit" instead of "return" statement. [ bp: Massage commit message. ] Fixes: 334872a09198 ("x86/traps: Attempt to fixup exceptions in vDSO before signaling") Signed-off-by: Thomas Tai <thomas.tai@oracle.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> Link: https://lkml.kernel.org/r/1617902914-83245-1-git-send-email-thomas.tai@oracle.com
2021-04-09habanalabs: print f/w boot unknown errorOded Gabbay
We need to print a message to the kernel log in case we encounter an unknown error in the f/w boot to help the user understand what happened. In addition, we shouldn't print unknown error in case of known errors. Moreover, in case of warnings/info, we shouldn't return -EIO that will fail the initialization and mark the device as disabled Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: update to latest F/W communication headerOhad Sharabi
update files to latest version from F/W team. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: skip iATU if F/W security is enabledOfir Bitton
As part of the securing GAUDI, the F/W will configure the PCI iATU regions. If the driver identifies a secured PCI ID, it will know to skip iATU configuration in a very early stage. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: derive security status from pci idOfir Bitton
As F/ security indication must be available before driver approaches PCI bus, F/W security should be derived from PCI id rather than be fetched during boot handshake with F/W. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: move dram scrub to free sequenceBharat Jauhari
DRAM scrubbing can take time hence it adds to latency during allocation. To minimize latency during initialization, scrubbing is moved to release call. In case scrubbing fails it means the device is in a bad state, hence HARD reset is initiated. Signed-off-by: Bharat Jauhari <bjauhari@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: send dynamic msi-x indexes to f/wOhad Sharabi
In order to minimize hard coded values between F/W and the driver, we send msi-x indexes dynamically to the F/W. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: clear QM errors only if not in stop_on_err modeTomer Tayar
Clearing QM errors by the driver will prevent these H/W blocks from stopping in case they are configured to stop on errors, so perform this clearing only if this mode is not in use. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: support DEVICE_UNUSABLE error indication from FWKoby Elbaz
In case of multiple ECC errors, FW will set the DEVICE_UNUSABLE bit. On boot-up, the driver will therefore fail inserting the device. Signed-off-by: Koby Elbaz <kelbaz@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: use strscpy instead of sprintf and strlcpyOded Gabbay
Prefer the use of strscpy when copying the ASIC name into a char array, to prevent accidentally exceeding the array's length. In addition, strlcpy is frowned upon so replace it. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: remove the store jobs array from CS IOCTLOded Gabbay
The store part was never implemented in the code and never been used by the userspace applications. We currently use the related parameters to a different purpose with a defined union. However, there is no point in that and it is better to just remove the union and the store parameters. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: add debugfs to DMA from the deviceOded Gabbay
When trying to debug program, the user often needs to dump large parts of the device's DRAM, which can reach to tens of GBs. Because reading from the device's internal memory through the PCI BAR is extremely slow, the debug can take hours. Instead, we can provide the user to copy data through one of the DMA engines. This will make the operation much faster. Currently, only GAUDI is supported. In GAUDI, we need to find a PCI DMA engine that is IDLE and set the DMA as secured to be able to bypass our MMU as we currently don't map the temporary buffer to the MMU. Example bash one-line to dump entire HBM to file (~2 minutes): for (( i=0x0; i < 0x800000000; i+=0x8000000 )); do \ printf '0x%x\n' $i | sudo tee /sys/kernel/debug/habanalabs/hl0/addr ; \ echo 0x8000000 | sudo tee /sys/kernel/debug/habanalabs/hl0/dma_size ; \ sudo cat /sys/kernel/debug/habanalabs/hl0/data_dma >> hbm.txt ; done Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: sync stream add protection to SOB reset flowfarah kassabri
Since we moved the SOB reset flow to workqueue and not part of the fence release flow, we might reach a scenario where new context is created while we in the middle of resetting the SOB. in such cases the reset may fail due to idle check. This will mess up the streams sync since the SOB value is invalid. so we protect this area with a mutex, to delay context creation. Signed-off-by: farah kassabri <fkassabri@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: add custom timeout flag per csAlon Mizrahi
There is a need to allow to user to send command submissions with custom timeout as some CS take longer than the max timeout that is used by default. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: improve utilization calculationKoby Elbaz
The new approach is based on the notion that the relative current power consumption is in relation of proportionality to device's true utilization. Utilization info ranges between [0,100]% Currently, dc_power values are hard-coded. Signed-off-by: Koby Elbaz <kelbaz@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: support legacy and new pll indexesOhad Sharabi
In order to use minimum of hard coded values common to LKD and F/W a dynamic method to work with PLLs is introduced in this patch. Formerly asic specific PLL numbering is now common for all asics. To be backward compatible a bit in dev status is defined, if the bit is not set LKD will keep working with old PLL numbering. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: move relevant datapath work outside cs lockOfir Bitton
In order to shorten the time cs lock is being held, we move any possible work outside of the cs lock. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: avoid soft lockup bug upon mapping errorfarah kassabri
Add a little sleep between page unmappings in case mapping of large number of host pages failed, in order to avoid soft lockup bug during the rollback. Signed-off-by: farah kassabri <fkassabri@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: Update async events headerOfir Bitton
Update with latest version from the Firmware team. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: unsecure TPC cfg status registersOfir Bitton
Unsecure relevant registers as TPC engine need access to TPC status. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: always use single-msi modeOded Gabbay
The device can get into deadlock in case it use indirect mode for MSI interrupts (multi-msi) and have hard-reset during interrupt storm. To prevent that, always use direct mode which means single-msi mode. The F/W will prevent the host from writing to the indirect MSI registers to prevent any malicious user from causing this scenario. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: reset device upon BMC requestOfir Bitton
In case the BMC of the devices' box wants to initiate a reset of a specific device, it must go through driver. Once driver will receive the request it will initiate a hard reset flow. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: debugfs access to user mapped host addressesOfir Bitton
In order to have a better debuggability we allow debugfs access to user mmu mapped host memory. Non-user host memory access will be rejected. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: Switch to using the new API kobj_to_dev()Yang Li
fixed the following coccicheck: ./drivers/misc/habanalabs/common/sysfs.c:347:60-61: WARNING opportunity for kobj_to_dev() Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: update hl_boot_if.hOhad Sharabi
Update to the latest version of the file as supplied by the F/W. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: skip DISABLE PCI packet to FW on heartbeatOhad Sharabi
if reset is due to heartbeat, device CPU is no responsive in which case no point sending PCI disable message to it. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: replace GFP_ATOMIC with GFP_KERNELOfir Bitton
As there are incorrect assumptions in which some of the initialization and data path flows cannot sleep, most allocations are being done using GFP_ATOMIC. We modify the code to use GFP_ATOMIC only when realy needed, as sleepable flow should use GFP_KERNEL. In addition add a fallback to allocate memory using GFP_KERNEL, once ATOMIC allocation fails. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs/gaudi: update extended async event headerOfir Bitton
Update to the latest definition of the firmware Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: return current power via INFO IOCTLSagiv Ozeri
Add driver implementation for reading the current power from the device CPU F/W. Signed-off-by: Sagiv Ozeri <sozeri@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: support HW blocks vm showSagiv Ozeri
Improve "vm" debugfs node to print also the virtual addresses which are currently mapped to HW blocks in the device. Signed-off-by: Sagiv Ozeri <sozeri@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-04-09habanalabs: use a single FW loading bringup flagOfir Bitton
For simplicity, use a single bringup flag indicating which FW binaries should loaded to device. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
generated by cgit (git 2.34.1) at 2025-10-02 00:05:12 +0000