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c006978163
NPU firmware requires a host-allocated work buffer for hardware contexts. Allocate a 4 MB host buffer and attach it to device during device init. Refactor aie2_alloc_msg_buffer() and aie2_free_msg_buffer() into common helpers by moving them to aie.c and renaming them to amdxdna_alloc_msg_buffer() and amdxdna_free_msg_buffer(), allowing both AIE2 and AIE4 to reuse the implementation. Signed-off-by: Nishad Saraf <nishads@amd.com> Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: Lizhi Hou <lizhi.hou@amd.com> Link: https://lore.kernel.org/all/20260505160936.3917732-7-lizhi.hou@amd.com/
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2026, Advanced Micro Devices, Inc.
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*/
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#include <drm/amdxdna_accel.h>
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#include <drm/drm_print.h>
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#include <linux/mutex.h>
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#include "aie.h"
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#include "aie4_msg_priv.h"
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#include "aie4_pci.h"
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#include "amdxdna_mailbox.h"
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#include "amdxdna_mailbox_helper.h"
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#include "amdxdna_pci_drv.h"
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int aie4_suspend_fw(struct amdxdna_dev_hdl *ndev)
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{
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DECLARE_AIE_MSG(aie4_msg_suspend, AIE4_MSG_OP_SUSPEND);
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int ret;
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ret = aie_send_mgmt_msg_wait(&ndev->aie, &msg);
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if (ret)
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XDNA_ERR(ndev->aie.xdna, "Failed to suspend fw, ret %d", ret);
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return ret;
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}
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int aie4_query_aie_metadata(struct amdxdna_dev_hdl *ndev,
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struct amdxdna_drm_query_aie_metadata *metadata)
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{
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DECLARE_AIE_MSG(aie4_msg_aie4_tile_info, AIE4_MSG_OP_AIE_TILE_INFO);
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int ret;
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ret = aie_send_mgmt_msg_wait(&ndev->aie, &msg);
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if (ret)
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return ret;
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metadata->col_size = resp.info.size;
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metadata->cols = resp.info.cols;
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metadata->rows = resp.info.rows;
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metadata->version.major = resp.info.major;
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metadata->version.minor = resp.info.minor;
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metadata->core.row_count = resp.info.core_rows;
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metadata->core.row_start = resp.info.core_row_start;
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metadata->core.dma_channel_count = resp.info.core_dma_channels;
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metadata->core.lock_count = resp.info.core_locks;
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metadata->core.event_reg_count = resp.info.core_events;
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metadata->mem.row_count = resp.info.mem_rows;
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metadata->mem.row_start = resp.info.mem_row_start;
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metadata->mem.dma_channel_count = resp.info.mem_dma_channels;
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metadata->mem.lock_count = resp.info.mem_locks;
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metadata->mem.event_reg_count = resp.info.mem_events;
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metadata->shim.row_count = resp.info.shim_rows;
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metadata->shim.row_start = resp.info.shim_row_start;
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metadata->shim.dma_channel_count = resp.info.shim_dma_channels;
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metadata->shim.lock_count = resp.info.shim_locks;
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metadata->shim.event_reg_count = resp.info.shim_events;
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return 0;
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}
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int aie4_attach_work_buffer(struct amdxdna_dev_hdl *ndev)
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{
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DECLARE_AIE_MSG(aie4_msg_attach_work_buffer, AIE4_MSG_OP_ATTACH_WORK_BUFFER);
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struct amdxdna_dev *xdna = ndev->aie.xdna;
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int ret;
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req.buff_addr = ndev->work_buf_addr;
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req.buff_size = AIE4_WORK_BUFFER_MIN_SIZE;
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ret = aie_send_mgmt_msg_wait(&ndev->aie, &msg);
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if (ret)
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XDNA_ERR(xdna, "Failed to attach work buffer, ret %d", ret);
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else
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XDNA_DBG(xdna, "Attached work buffer");
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return ret;
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}
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