Junhua Shen
9da1572c42
* Introduce HsaKFDContext structure and infrastructure for multiple KFD contexts, enabling independent contexts within a single process. * Refactor core components (queue, event, FMM, topology) to be context-aware, using explicit HsaKFDContext parameters instead of global state. * Replace global hsakmt_kfd_fd with context-specific file descriptors, ensuring full context isolation. * Maintain backward compatibility by redirecting legacy APIs to use the primary context. This refactoring establishes a foundation for multi-context support while preserving existing functionality. Signed-off-by: Junhua Shen <Junhua.Shen@amd.com>
105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
/*
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* Copyright © 2020 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including
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* the next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include "libhsakmt.h"
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#include "hsakmt/linux/kfd_ioctl.h"
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#include <stdlib.h>
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#include <stdio.h>
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HSAKMT_STATUS HSAKMTAPI hsaKmtSPMAcquire(HSAuint32 PreferredNode)
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{
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int ret;
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struct kfd_ioctl_spm_args args = {0};
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uint32_t gpu_id;
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ret = hsakmt_validate_nodeid(PreferredNode, &gpu_id);
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if (ret != HSAKMT_STATUS_SUCCESS) {
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pr_err("[%s] invalid node ID: %d\n", __func__, PreferredNode);
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return ret;
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}
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ret = HSAKMT_STATUS_SUCCESS;
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args.op = KFD_IOCTL_SPM_OP_ACQUIRE;
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args.gpu_id = gpu_id;
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ret = hsakmt_ioctl(hsakmt_primary_kfd_ctx.fd, AMDKFD_IOC_RLC_SPM, &args);
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return ret;
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}
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HSAKMT_STATUS HSAKMTAPI hsaKmtSPMSetDestBuffer(HSAuint32 PreferredNode,
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HSAuint32 SizeInBytes,
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HSAuint32 * timeout,
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HSAuint32 * SizeCopied,
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void *DestMemoryAddress,
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bool *isSPMDataLoss)
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{
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int ret;
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struct kfd_ioctl_spm_args args = {0};
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uint32_t gpu_id = 0;
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ret = hsakmt_validate_nodeid(PreferredNode, &gpu_id);
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if (ret != HSAKMT_STATUS_SUCCESS) {
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return ret;
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}
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args.timeout = *timeout;
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args.dest_buf = (uint64_t)DestMemoryAddress;
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args.buf_size = SizeInBytes;
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args.op = KFD_IOCTL_SPM_OP_SET_DEST_BUF;
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args.gpu_id = gpu_id;
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ret = hsakmt_ioctl(hsakmt_primary_kfd_ctx.fd, AMDKFD_IOC_RLC_SPM, &args);
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*SizeCopied = args.bytes_copied;
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*isSPMDataLoss = args.has_data_loss;
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*timeout = args.timeout;
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return ret;
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}
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HSAKMT_STATUS HSAKMTAPI hsaKmtSPMRelease(HSAuint32 PreferredNode)
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{
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int ret = HSAKMT_STATUS_SUCCESS;
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struct kfd_ioctl_spm_args args = {0};
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uint32_t gpu_id;
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ret = hsakmt_validate_nodeid(PreferredNode, &gpu_id);
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if (ret != HSAKMT_STATUS_SUCCESS) {
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pr_err("[%s] invalid node ID: %d\n", __func__, PreferredNode);
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return ret;
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}
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args.op = KFD_IOCTL_SPM_OP_RELEASE;
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args.gpu_id = gpu_id;
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ret = hsakmt_ioctl(hsakmt_primary_kfd_ctx.fd, AMDKFD_IOC_RLC_SPM, &args);
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return ret;
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}
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