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cb596aee88
This patch adds a support for a new H/W queue type. This type of queue is for DMA and compute engines jobs, for which completion notification are sent by H/W. Command buffer for this queue can be created either through the CB IOCTL and using the retrieved CB handle, or by preparing a buffer on the host or device SRAM/DRAM, and using the device address to that buffer. The patch includes the handling of the 2 options, as well as the initialization of the H/W queue and its jobs scheduling. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
69 lines
1.3 KiB
C
69 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0
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*
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* Copyright 2016-2018 HabanaLabs, Ltd.
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* All Rights Reserved.
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*
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*/
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#ifndef QMAN_IF_H
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#define QMAN_IF_H
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#include <linux/types.h>
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/*
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* PRIMARY QUEUE
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*/
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struct hl_bd {
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__le64 ptr;
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__le32 len;
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__le32 ctl;
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};
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#define HL_BD_SIZE sizeof(struct hl_bd)
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/*
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* S/W CTL FIELDS.
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*
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* BD_CTL_REPEAT_VALID tells the CP whether the repeat field in the BD CTL is
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* valid. 1 means the repeat field is valid, 0 means not-valid,
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* i.e. repeat == 1
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*/
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#define BD_CTL_REPEAT_VALID_SHIFT 24
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#define BD_CTL_REPEAT_VALID_MASK 0x01000000
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#define BD_CTL_SHADOW_INDEX_SHIFT 0
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#define BD_CTL_SHADOW_INDEX_MASK 0x00000FFF
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/*
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* H/W CTL FIELDS
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*/
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#define BD_CTL_COMP_OFFSET_SHIFT 16
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#define BD_CTL_COMP_OFFSET_MASK 0x00FF0000
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#define BD_CTL_COMP_DATA_SHIFT 0
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#define BD_CTL_COMP_DATA_MASK 0x0000FFFF
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/*
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* COMPLETION QUEUE
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*/
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struct hl_cq_entry {
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__le32 data;
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};
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#define HL_CQ_ENTRY_SIZE sizeof(struct hl_cq_entry)
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#define CQ_ENTRY_READY_SHIFT 31
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#define CQ_ENTRY_READY_MASK 0x80000000
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#define CQ_ENTRY_SHADOW_INDEX_VALID_SHIFT 30
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#define CQ_ENTRY_SHADOW_INDEX_VALID_MASK 0x40000000
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#define CQ_ENTRY_SHADOW_INDEX_SHIFT BD_CTL_SHADOW_INDEX_SHIFT
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#define CQ_ENTRY_SHADOW_INDEX_MASK BD_CTL_SHADOW_INDEX_MASK
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#endif /* QMAN_IF_H */
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