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qaic_accel.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note * * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved. * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved. */ #ifndef QAIC_ACCEL_H_ #define QAIC_ACCEL_H_ #include "drm.h" #if defined(__cplusplus) extern "C" { #endif /* The length(4K) includes len and count fields of qaic_manage_msg */ #define QAIC_MANAGE_MAX_MSG_LENGTH SZ_4K /* semaphore flags */ #define QAIC_SEM_INSYNCFENCE 2 #define QAIC_SEM_OUTSYNCFENCE 1 /* Semaphore commands */ #define QAIC_SEM_NOP 0 #define QAIC_SEM_INIT 1 #define QAIC_SEM_INC 2 #define QAIC_SEM_DEC 3 #define QAIC_SEM_WAIT_EQUAL 4 #define QAIC_SEM_WAIT_GT_EQ 5 /* Greater than or equal */ #define QAIC_SEM_WAIT_GT_0 6 /* Greater than 0 */ #define QAIC_TRANS_UNDEFINED 0 #define QAIC_TRANS_PASSTHROUGH_FROM_USR 1 #define QAIC_TRANS_PASSTHROUGH_TO_USR 2 #define QAIC_TRANS_PASSTHROUGH_FROM_DEV 3 #define QAIC_TRANS_PASSTHROUGH_TO_DEV 4 #define QAIC_TRANS_DMA_XFER_FROM_USR 5 #define QAIC_TRANS_DMA_XFER_TO_DEV 6 #define QAIC_TRANS_ACTIVATE_FROM_USR 7 #define QAIC_TRANS_ACTIVATE_FROM_DEV 8 #define QAIC_TRANS_ACTIVATE_TO_DEV 9 #define QAIC_TRANS_DEACTIVATE_FROM_USR 10 #define QAIC_TRANS_DEACTIVATE_FROM_DEV 11 #define QAIC_TRANS_STATUS_FROM_USR 12 #define QAIC_TRANS_STATUS_TO_USR 13 #define QAIC_TRANS_STATUS_FROM_DEV 14 #define QAIC_TRANS_STATUS_TO_DEV 15 #define QAIC_TRANS_TERMINATE_FROM_DEV 16 #define QAIC_TRANS_TERMINATE_TO_DEV 17 #define QAIC_TRANS_DMA_XFER_CONT 18 #define QAIC_TRANS_VALIDATE_PARTITION_FROM_DEV 19 #define QAIC_TRANS_VALIDATE_PARTITION_TO_DEV 20 /** * struct qaic_manage_trans_hdr - Header for a transaction in a manage message. * @type: In. Identifies this transaction. See QAIC_TRANS_* defines. * @len: In. Length of this transaction, including this header. */ struct qaic_manage_trans_hdr { __u32 type; __u32 len; }; /** * struct qaic_manage_trans_passthrough - Defines a passthrough transaction. * @hdr: In. Header to identify this transaction. * @data: In. Payload of this ransaction. Opaque to the driver. Userspace must * encode in little endian and align/pad to 64-bit. */ struct qaic_manage_trans_passthrough { struct qaic_manage_trans_hdr hdr; __u8 data[]; }; /** * struct qaic_manage_trans_dma_xfer - Defines a DMA transfer transaction. * @hdr: In. Header to identify this transaction. * @tag: In. Identified this transfer in other transactions. Opaque to the * driver. * @pad: Structure padding. * @addr: In. Address of the data to DMA to the device. * @size: In. Length of the data to DMA to the device. */ struct qaic_manage_trans_dma_xfer { struct qaic_manage_trans_hdr hdr; __u32 tag; __u32 pad; __u64 addr; __u64 size; }; /** * struct qaic_manage_trans_activate_to_dev - Defines an activate request. * @hdr: In. Header to identify this transaction. * @queue_size: In. Number of elements for DBC request and response queues. * @eventfd: Unused. * @options: In. Device specific options for this activate. * @pad: Structure padding. Must be 0. */ struct qaic_manage_trans_activate_to_dev { struct qaic_manage_trans_hdr hdr; __u32 queue_size; __u32 eventfd; __u32 options; __u32 pad; }; /** * struct qaic_manage_trans_activate_from_dev - Defines an activate response. * @hdr: Out. Header to identify this transaction. * @status: Out. Return code of the request from the device. * @dbc_id: Out. Id of the assigned DBC for successful request. * @options: Out. Device specific options for this activate. */ struct qaic_manage_trans_activate_from_dev { struct qaic_manage_trans_hdr hdr; __u32 status; __u32 dbc_id; __u64 options; }; /** * struct qaic_manage_trans_deactivate - Defines a deactivate request. * @hdr: In. Header to identify this transaction. * @dbc_id: In. Id of assigned DBC. * @pad: Structure padding. Must be 0. */ struct qaic_manage_trans_deactivate { struct qaic_manage_trans_hdr hdr; __u32 dbc_id; __u32 pad; }; /** * struct qaic_manage_trans_status_to_dev - Defines a status request. * @hdr: In. Header to identify this transaction. */ struct qaic_manage_trans_status_to_dev { struct qaic_manage_trans_hdr hdr; }; /** * struct qaic_manage_trans_status_from_dev - Defines a status response. * @hdr: Out. Header to identify this transaction. * @major: Out. NNC protocol version major number. * @minor: Out. NNC protocol version minor number. * @status: Out. Return code from device. * @status_flags: Out. Flags from device. Bit 0 indicates if CRCs are required. */ struct qaic_manage_trans_status_from_dev { struct qaic_manage_trans_hdr hdr; __u16 major; __u16 minor; __u32 status; __u64 status_flags; }; /** * struct qaic_manage_msg - Defines a message to the device. * @len: In. Length of all the transactions contained within this message. * @count: In. Number of transactions in this message. * @data: In. Address to an array where the transactions can be found. */ struct qaic_manage_msg { __u32 len; __u32 count; __u64 data; }; /** * struct qaic_create_bo - Defines a request to create a buffer object. * @size: In. Size of the buffer in bytes. * @handle: Out. GEM handle for the BO. * @pad: Structure padding. Must be 0. */ struct qaic_create_bo { __u64 size; __u32 handle; __u32 pad; }; /** * struct qaic_mmap_bo - Defines a request to prepare a BO for mmap(). * @handle: In. Handle of the GEM BO to prepare for mmap(). * @pad: Structure padding. Must be 0. * @offset: Out. Offset value to provide to mmap(). */ struct qaic_mmap_bo { __u32 handle; __u32 pad; __u64 offset; }; /** * struct qaic_sem - Defines a semaphore command for a BO slice. * @val: In. Only lower 12 bits are valid. * @index: In. Only lower 5 bits are valid. * @presync: In. 1 if presync operation, 0 if postsync. * @cmd: In. One of QAIC_SEM_*. * @flags: In. Bitfield. See QAIC_SEM_INSYNCFENCE and QAIC_SEM_OUTSYNCFENCE * @pad: Structure padding. Must be 0. */ struct qaic_sem { __u16 val; __u8 index; __u8 presync; __u8 cmd; __u8 flags; __u16 pad; }; /** * struct qaic_attach_slice_entry - Defines a single BO slice. * @size: In. Size of this slice in bytes. * @sem0: In. Semaphore command 0. Must be 0 is not valid. * @sem1: In. Semaphore command 1. Must be 0 is not valid. * @sem2: In. Semaphore command 2. Must be 0 is not valid. * @sem3: In. Semaphore command 3. Must be 0 is not valid. * @dev_addr: In. Device address this slice pushes to or pulls from. * @db_addr: In. Address of the doorbell to ring. * @db_data: In. Data to write to the doorbell. * @db_len: In. Size of the doorbell data in bits - 32, 16, or 8. 0 is for * inactive doorbells. * @offset: In. Start of this slice as an offset from the start of the BO. */ struct qaic_attach_slice_entry { __u64 size; struct qaic_sem sem0; struct qaic_sem sem1; struct qaic_sem sem2; struct qaic_sem sem3; __u64 dev_addr; __u64 db_addr; __u32 db_data; __u32 db_len; __u64 offset; }; /** * struct qaic_attach_slice_hdr - Defines metadata for a set of BO slices. * @count: In. Number of slices for this BO. * @dbc_id: In. Associate the sliced BO with this DBC. * @handle: In. GEM handle of the BO to slice. * @dir: In. Direction of data flow. 1 = DMA_TO_DEVICE, 2 = DMA_FROM_DEVICE * @size: In. Total length of BO being used. This should not exceed base * size of BO (struct drm_gem_object.base) * For BOs being allocated using DRM_IOCTL_QAIC_CREATE_BO, size of * BO requested is PAGE_SIZE aligned then allocated hence allocated * BO size maybe bigger. This size should not exceed the new * PAGE_SIZE aligned BO size. * @dev_addr: In. Device address this slice pushes to or pulls from. * @db_addr: In. Address of the doorbell to ring. * @db_data: In. Data to write to the doorbell. * @db_len: In. Size of the doorbell data in bits - 32, 16, or 8. 0 is for * inactive doorbells. * @offset: In. Start of this slice as an offset from the start of the BO. */ struct qaic_attach_slice_hdr { __u32 count; __u32 dbc_id; __u32 handle; __u32 dir; __u64 size; }; /** * struct qaic_attach_slice - Defines a set of BO slices. * @hdr: In. Metadata of the set of slices. * @data: In. Pointer to an array containing the slice definitions. */ struct qaic_attach_slice { struct qaic_attach_slice_hdr hdr; __u64 data; }; /** * struct qaic_execute_entry - Defines a BO to submit to the device. * @handle: In. GEM handle of the BO to commit to the device. * @dir: In. Direction of data. 1 = to device, 2 = from device. */ struct qaic_execute_entry { __u32 handle; __u32 dir; }; /** * struct qaic_partial_execute_entry - Defines a BO to resize and submit. * @handle: In. GEM handle of the BO to commit to the device. * @dir: In. Direction of data. 1 = to device, 2 = from device. * @resize: In. New size of the BO. Must be <= the original BO size. * @resize as 0 would be interpreted as no DMA transfer is * involved. */ struct qaic_partial_execute_entry { __u32 handle; __u32 dir; __u64 resize; }; /** * struct qaic_execute_hdr - Defines metadata for BO submission. * @count: In. Number of BOs to submit. * @dbc_id: In. DBC to submit the BOs on. */ struct qaic_execute_hdr { __u32 count; __u32 dbc_id; }; /** * struct qaic_execute - Defines a list of BOs to submit to the device. * @hdr: In. BO list metadata. * @data: In. Pointer to an array of BOs to submit. */ struct qaic_execute { struct qaic_execute_hdr hdr; __u64 data; }; /** * struct qaic_wait - Defines a blocking wait for BO execution. * @handle: In. GEM handle of the BO to wait on. * @timeout: In. Maximum time in ms to wait for the BO. * @dbc_id: In. DBC the BO is submitted to. * @pad: Structure padding. Must be 0. */ struct qaic_wait { __u32 handle; __u32 timeout; __u32 dbc_id; __u32 pad; }; /** * struct qaic_perf_stats_hdr - Defines metadata for getting BO perf info. * @count: In. Number of BOs requested. * @pad: Structure padding. Must be 0. * @dbc_id: In. DBC the BO are associated with. */ struct qaic_perf_stats_hdr { __u16 count; __u16 pad; __u32 dbc_id; }; /** * struct qaic_perf_stats - Defines a request for getting BO perf info. * @hdr: In. Request metadata * @data: In. Pointer to array of stats structures that will receive the data. */ struct qaic_perf_stats { struct qaic_perf_stats_hdr hdr; __u64 data; }; /** * struct qaic_perf_stats_entry - Defines a BO perf info. * @handle: In. GEM handle of the BO to get perf stats for. * @queue_level_before: Out. Number of elements in the queue before this BO * was submitted. * @num_queue_element: Out. Number of elements added to the queue to submit * this BO. * @submit_latency_us: Out. Time taken by the driver to submit this BO. * @device_latency_us: Out. Time taken by the device to execute this BO. * @pad: Structure padding. Must be 0. */ struct qaic_perf_stats_entry { __u32 handle; __u32 queue_level_before; __u32 num_queue_element; __u32 submit_latency_us; __u32 device_latency_us; __u32 pad; }; /** * struct qaic_detach_slice - Detaches slicing configuration from BO. * @handle: In. GEM handle of the BO to detach slicing configuration. * @pad: Structure padding. Must be 0. */ struct qaic_detach_slice { __u32 handle; __u32 pad; }; #define DRM_QAIC_MANAGE 0x00 #define DRM_QAIC_CREATE_BO 0x01 #define DRM_QAIC_MMAP_BO 0x02 #define DRM_QAIC_ATTACH_SLICE_BO 0x03 #define DRM_QAIC_EXECUTE_BO 0x04 #define DRM_QAIC_PARTIAL_EXECUTE_BO 0x05 #define DRM_QAIC_WAIT_BO 0x06 #define DRM_QAIC_PERF_STATS_BO 0x07 #define DRM_QAIC_DETACH_SLICE_BO 0x08 #define DRM_IOCTL_QAIC_MANAGE DRM_IOWR(DRM_COMMAND_BASE + DRM_QAIC_MANAGE, struct qaic_manage_msg) #define DRM_IOCTL_QAIC_CREATE_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_QAIC_CREATE_BO, struct qaic_create_bo) #define DRM_IOCTL_QAIC_MMAP_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_QAIC_MMAP_BO, struct qaic_mmap_bo) #define DRM_IOCTL_QAIC_ATTACH_SLICE_BO DRM_IOW(DRM_COMMAND_BASE + DRM_QAIC_ATTACH_SLICE_BO, struct qaic_attach_slice) #define DRM_IOCTL_QAIC_EXECUTE_BO DRM_IOW(DRM_COMMAND_BASE + DRM_QAIC_EXECUTE_BO, struct qaic_execute) #define DRM_IOCTL_QAIC_PARTIAL_EXECUTE_BO DRM_IOW(DRM_COMMAND_BASE + DRM_QAIC_PARTIAL_EXECUTE_BO, struct qaic_execute) #define DRM_IOCTL_QAIC_WAIT_BO DRM_IOW(DRM_COMMAND_BASE + DRM_QAIC_WAIT_BO, struct qaic_wait) #define DRM_IOCTL_QAIC_PERF_STATS_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_QAIC_PERF_STATS_BO, struct qaic_perf_stats) #define DRM_IOCTL_QAIC_DETACH_SLICE_BO DRM_IOW(DRM_COMMAND_BASE + DRM_QAIC_DETACH_SLICE_BO, struct qaic_detach_slice) #if defined(__cplusplus) } #endif #endif /* QAIC_ACCEL_H_ */