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path: root/drivers/misc/habanalabs/common/sysfs.c
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2023-01-26habanalabs: move driver to accel subsystemOded Gabbay1-514/+0
Now that we have a subsystem for compute accelerators, move the habanalabs driver to it. This patch only moves the files and fixes the Makefiles. Future patches will change the existing code to register to the accel subsystem and expose the accel device char files instead of the habanalabs device char files. Update the MAINTAINERS file to reflect this change. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23habanalabs/gaudi2: add PCI revision 2 supportOfir Bitton1-0/+2
Add support for Gaudi2 Device with PCI revision 2. Functionality is exactly the same as revision 1, the only difference is device name exposed to user. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23habanalabs: remove redundant gaudi2_sec asic typeOfir Bitton1-2/+0
As Gaudi2 has a single PCI id, the secured asic type is redundant. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-09-18habanalabs: expose device security status through sysfsOfir Bitton1-0/+10
In order for the user to know if he is running on a secured device or not, a sysfs node is added. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-07-12habanalabs: rename soft reset to compute resetOded Gabbay1-1/+1
Doing compute reset can be the traditional inference soft reset that is supported only in Goya. Or it can be the new reset upon device release, which is supported in Gaudi2 and above. Therefore, wherever suitable, use the terminology of compute reset instead of soft reset. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-07-12habanalabs: enable gaudi2 code in driverOded Gabbay1-0/+6
Enable the Gaudi2 ASIC code in the pci probe callback of the driver so the driver will handle Gaudi2 ASICs. Add the PCI ID to the PCI table and add the ASIC enum value to all relevant places. Fixup the device parameters initialization for Gaudi2. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-07-12habanalabs: add terminating NULL to attrs arraysDafna Hirschfeld1-0/+2
Arrays of struct attribute are expected to be NULL terminated. This is required by API methods such as device_add_groups. This fixes a crash when loading the driver for Goya device. Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-02-28habanalabs: add missing error check in sysfs max_power_showTomer Tayar1-0/+2
Add a missing error check in the sysfs show function for max_power. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-02-28habanalabs: add missing error check in sysfs clk_freq_mhz_showTomer Tayar1-0/+4
Add a missing error check in the sysfs show functions for clk_max_freq_mhz and clk_cur_freq_mhz_show. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-02-28habanalabs: sysfs support for fw os versionRajaravi Krishna Katta1-0/+10
Adds new sysfs entry to display firmware os version /sys/class/habanalabs/hl<n>/fw_os_ver Signed-off-by: Rajaravi Krishna Katta <rkatta@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-02-28habanalabs: add vrm version to sysfsOded Gabbay1-18/+28
infineon version is only applicable to GOYA and GAUDI. For later ASICs, we display the Voltage Regulator Monitor f/w version. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-02-28habanalabs: rename dev_attr_grp to dev_clk_attr_grpOded Gabbay1-2/+2
In this attribute group we are only adding clocks. This is in preparation for adding a device specific attribute group which is not related to clocks. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-02-28habanalabs: move more f/w functions to firmware_if.cOded Gabbay1-105/+5
For better maintainability, try to concentrate all the common functions that communicate with the f/w in firmware_if.c Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-02-28habanalabs: sysfs functions should be in sysfs.cOded Gabbay1-1/+69
Move common sysfs store/show functions to sysfs.c file for consistency. This is part of a patch-set to remove hwmgr.c Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-12-26habanalabs: refactor reset information variablesOfir Bitton1-5/+5
Unify variables related to device reset, which will help us to add some new reset functionality in future patches. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-12-26habanalabs: fix endianness when reading cpld versionOfir Bitton1-1/+1
Current sysfs implementation does not take endianness into consideration when dumping the cpld version. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-12-26habanalabs: expose soft reset sysfs nodes for inference ASICOfir Bitton1-2/+30
As we allow soft-reset to be performed only on inference devices, having the sysfs nodes may cause a confusion. Hence, we remove those nodes on training ASICs. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-12-26habanalabs: sysfs support for two infineon versionsOfir Bitton1-2/+7
Currently sysfs support dumping a single infineon version, in future asics we will have two infineon versions. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-12-26habanalabs: Move frequency change thread to goya_late_initRajaravi Krishna Katta1-5/+0
Changing the frequency automatically is only done in Goya. In future ASICs this is done inside the firmware. Therefore, move the common code into the Goya specific files. Main changes as part of the commit are: 1. The thread for setting frequency is moved from device_late_init to goya_late_init 2. hl_device_set_frequency is removed from hl_device_open as it is not relevant for other ASICs and for Goya it is taken care by the thread 3. hl_device_set_frequency is renamed as goya_set_frequency Signed-off-by: Rajaravi Krishna Katta <rkatta@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-12-26habanalabs: rename reset flagsBharat Jauhari1-1/+1
Rename reset flags for better readability as compared to HL_RESET_CAUSE* enum shared with the f/w. Signed-off-by: Bharat Jauhari <bjauhari@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-10-18habanalabs: define soft-reset as inference opOded Gabbay1-3/+3
Soft-reset is the procedure where we reset only the compute/DMA engines of the device, without requiring the current user-space process to release the device. This type of reset can happen if TDR event occurred (a workload got stuck) or by a root request through sysfs. This is only relevant for inference ASICs, as there is no real-world use-case to do that in training, because training runs on multiple devices. In addition, we also do (in certain ASICs) a reset upon device release. That reset uses the same code as the soft-reset. Therefore, to better differentiate between the two resets, it is better to rename the soft-reset support as "inference soft-reset", to make the code more self-explanatory. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-09-01habanalabs: add "in device creation" statusOmer Shpigelman1-13/+7
On init, the disabled state is cleared right before hw_init and that causes the device to report on "Operational" state before the device initialization is finished. Although the char device is not yet exposed to the user at this stage, the sysfs entries are exposed. This can cause errors in monitoring applications that use the sysfs entries. In order to avoid this, a new state "in device creation" is introduced to ne reported when the device is not disabled but is still in init flow. Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-06-21habanalabs: allow reset upon device releaseOfir Bitton1-1/+1
We introduce a new type of reset which is reset upon device release. This reset is very similar to soft reset except the fact it is performed only upon device release and not upon user sysfs request nor TDR. The purpose of this reset is to make sure the device is returned to IDLE state after the current user has finished working with the device. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2021-05-08habanalabs: expose ASIC specific PLL indexBharat Jauhari1-2/+2
Currently the user cannot interpret the PLL information based on index as its exposed as an integer. This commit exposes ASIC specific PLL indexes and maps it to a generic FW compatible index. 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/gaudi: derive security status from pci idOfir Bitton1-0/+3
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: support legacy and new pll indexesOhad Sharabi1-6/+18
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: Switch to using the new API kobj_to_dev()Yang Li1-1/+1
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: skip DISABLE PCI packet to FW on heartbeatOhad Sharabi1-2/+2
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>
2020-11-30habanalabs: firmware returns 64bit argumentAlon Mizrahi1-5/+5
F/W message returns 64bit value but up until now we casted it to a 32bit variable, instead of receiving 64bit in the first place. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: add 'needs reset' state in driverOfir Bitton1-3/+5
The new state indicates that device should be reset in order to re-gain funcionality. This unique state can occur if reset_on_lockup is disabled and an actual lockup has occurred. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-09-22habanalabs: replace armcp with the generic cpucpOded Gabbay1-20/+40
ArmCP mandates that the device CPU is always an ARM processor, which might be wrong in the future. Most of this change is an internal renaming of variables, functions and defines but there are two entries in sysfs which have armcp in their names. Add identical cpucp entries but don't remove yet the armcp entries. Those will be deprecated next year. Add the documentation about it in sysfs documentation. Signed-off-by: Moti Haimovski <mhaimovski@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-08-22habanalabs: set max power according to card typeOded Gabbay1-3/+4
In Gaudi, the default max power setting is different between PCI and PMC cards. Therefore, the driver need to set the default after knowing what is the card type. The current code has a bug where it limits the maximum power of the PMC card to 200W after a reset occurs. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-07-27Merge 5.8-rc7 into char-misc-nextGreg Kroah-Hartman1-7/+4
This should resolve the merge/build issues reported when trying to create linux-next. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-24habanalabs: enable device before hw_init()Oded Gabbay1-0/+3
Device is now enabled before the hw_init() because part of the initialization requires communication with the device firmware to get information that is required for the initialization itself Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Reviewed-by: Tomer Tayar <ttayar@habana.ai>
2020-07-24habanalabs: create common folderOded Gabbay1-0/+442
For internal needs of our CI we need to move all the common code into a common folder instead of putting them in the root folder of the driver. Same applies to the common header files under include/ Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai>
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