kernel/git/stable/linux.git/include/uapi/misc/habanalabs.h, branch master

habanalabs/uapi: move uapi file to drm

2023-01-26T08:56:23+00:00

Move the habanalabs.h uapi file from include/uapi/misc to include/uapi/drm, and rename it to habanalabs_accel.h. This is required before moving the actual driver to the accel subsystem. Update MAINTAINERS file accordingly. Signed-off-by: Oded Gabbay

habanalabs: pass-through request from user to f/w

2023-01-26T08:56:22+00:00

Add a uAPI, as part of the INFO IOCTL, to allow users to send requests directly to f/w, according to a pre-defined set of opcodes that the f/w exposes. The f/w will put the result in a kernel-allocated buffer, which the driver will then copy to the user-supplied buffer. This will allow f/w tools to communicate directly with the f/w without the need to add a new uAPI to the driver for each new type of request. Signed-off-by: farah kassabri Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs: modify export dmabuf API

2023-01-26T08:56:21+00:00

A previous commit deprecated the option to export from handle, leaving the code with no support for devices with virtual memory. This commit modifies the export API in a way that unifies the uAPI to user address for both cases (i.e. with and without MMU support) and add the actual support for devices with virtual memory. Signed-off-by: Ohad Sharabi Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs: increase the size of busy engines mask

2022-11-23T14:13:48+00:00

Increase the size of the busy engines mask in 'struct hl_info_hw_idle', for future ASICs with more than 128 engines. Signed-off-by: Tomer Tayar Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs/gaudi: add page fault notify event

2022-11-23T14:13:46+00:00

Each time page fault happens, besides capturing its data, also notify the user about it. Signed-off-by: Dani Liberman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs/gaudi: add razwi notify event

2022-11-23T14:13:46+00:00

Each time razwi (read-only zero, write ignore) happens, besides capturing its data, also notify the user about it. Signed-off-by: Dani Liberman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs/gaudi2: add PCI revision 2 support

2022-11-23T14:13:46+00:00

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 Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs/gaudi2: capture RAZWI information

2022-11-23T14:13:41+00:00

Added function to calculate possible engines which caused RAZWI (read-only zero, write ignored), from a given router id or module index. When getting RAZWI via PSOC IP, first the router id is calculated and then the possible engines that caused the RAZWI are calculated. There is a possibility that the RAZWI initiator is not an engine. In that case, it will not be included in possible engines as it doesn't have an engine id. RAZWI information is captured when receiving event from engine or via PSOC IP. Signed-off-by: Dani Liberman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs: add page fault info uapi

2022-11-23T14:13:40+00:00

Only the first page fault will be saved. Besides the address which caused the page fault, the driver captures all of the mmu user mappings. User can retrieve this data via the new uapi (new opcode in INFO ioctl). Signed-off-by: Dani Liberman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay

habanalabs: refactor razwi event notification

2022-11-23T14:13:39+00:00

This event notification was compatible only with gaudi, where razwi and page fault happens together. To make it compatible with all ASICs, this refactor contains: 1. Razwi notification will only notify about razwi info. New notification will be added in future patch, to retrieve data about page fault error. 2. Changed razwi info structure to support all ASICs. Signed-off-by: Dani Liberman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay