259 lines
4.4 KiB
C
259 lines
4.4 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2022 Intel Corporation
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*/
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#include "xe_uc.h"
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#include "xe_device.h"
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#include "xe_gsc.h"
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#include "xe_gt.h"
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#include "xe_guc.h"
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#include "xe_guc_pc.h"
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#include "xe_guc_submit.h"
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#include "xe_huc.h"
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#include "xe_uc_fw.h"
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#include "xe_wopcm.h"
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static struct xe_gt *
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uc_to_gt(struct xe_uc *uc)
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{
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return container_of(uc, struct xe_gt, uc);
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}
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static struct xe_device *
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uc_to_xe(struct xe_uc *uc)
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{
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return gt_to_xe(uc_to_gt(uc));
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}
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/* Should be called once at driver load only */
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int xe_uc_init(struct xe_uc *uc)
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{
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int ret;
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/*
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* We call the GuC/HuC/GSC init functions even if GuC submission is off
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* to correctly move our tracking of the FW state to "disabled".
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*/
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ret = xe_guc_init(&uc->guc);
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if (ret)
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goto err;
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ret = xe_huc_init(&uc->huc);
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if (ret)
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goto err;
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ret = xe_gsc_init(&uc->gsc);
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if (ret)
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goto err;
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if (!xe_device_uc_enabled(uc_to_xe(uc)))
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return 0;
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ret = xe_wopcm_init(&uc->wopcm);
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if (ret)
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goto err;
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ret = xe_guc_submit_init(&uc->guc);
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if (ret)
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goto err;
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return 0;
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err:
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return ret;
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}
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/**
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* xe_uc_init_post_hwconfig - init Uc post hwconfig load
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* @uc: The UC object
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*
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* Return: 0 on success, negative error code on error.
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*/
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int xe_uc_init_post_hwconfig(struct xe_uc *uc)
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{
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int err;
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/* GuC submission not enabled, nothing to do */
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if (!xe_device_uc_enabled(uc_to_xe(uc)))
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return 0;
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err = xe_uc_sanitize_reset(uc);
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if (err)
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return err;
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err = xe_guc_init_post_hwconfig(&uc->guc);
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if (err)
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return err;
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return xe_gsc_init_post_hwconfig(&uc->gsc);
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}
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static int uc_reset(struct xe_uc *uc)
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{
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struct xe_device *xe = uc_to_xe(uc);
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int ret;
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ret = xe_guc_reset(&uc->guc);
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if (ret) {
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drm_err(&xe->drm, "Failed to reset GuC, ret = %d\n", ret);
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return ret;
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}
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return 0;
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}
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static void xe_uc_sanitize(struct xe_uc *uc)
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{
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xe_huc_sanitize(&uc->huc);
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xe_guc_sanitize(&uc->guc);
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}
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int xe_uc_sanitize_reset(struct xe_uc *uc)
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{
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xe_uc_sanitize(uc);
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return uc_reset(uc);
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}
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/**
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* xe_uc_init_hwconfig - minimally init Uc, read and parse hwconfig
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* @uc: The UC object
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*
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* Return: 0 on success, negative error code on error.
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*/
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int xe_uc_init_hwconfig(struct xe_uc *uc)
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{
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int ret;
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/* GuC submission not enabled, nothing to do */
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if (!xe_device_uc_enabled(uc_to_xe(uc)))
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return 0;
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ret = xe_guc_min_load_for_hwconfig(&uc->guc);
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if (ret)
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return ret;
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return 0;
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}
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/*
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* Should be called during driver load, after every GT reset, and after every
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* suspend to reload / auth the firmwares.
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*/
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int xe_uc_init_hw(struct xe_uc *uc)
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{
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int ret;
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/* GuC submission not enabled, nothing to do */
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if (!xe_device_uc_enabled(uc_to_xe(uc)))
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return 0;
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ret = xe_huc_upload(&uc->huc);
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if (ret)
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return ret;
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ret = xe_guc_upload(&uc->guc);
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if (ret)
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return ret;
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ret = xe_guc_enable_communication(&uc->guc);
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if (ret)
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return ret;
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ret = xe_gt_record_default_lrcs(uc_to_gt(uc));
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if (ret)
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return ret;
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ret = xe_guc_post_load_init(&uc->guc);
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if (ret)
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return ret;
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ret = xe_guc_pc_start(&uc->guc.pc);
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if (ret)
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return ret;
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/* We don't fail the driver load if HuC fails to auth, but let's warn */
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ret = xe_huc_auth(&uc->huc, XE_HUC_AUTH_VIA_GUC);
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xe_gt_assert(uc_to_gt(uc), !ret);
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/* GSC load is async */
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xe_gsc_load_start(&uc->gsc);
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return 0;
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}
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int xe_uc_fini_hw(struct xe_uc *uc)
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{
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return xe_uc_sanitize_reset(uc);
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}
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int xe_uc_reset_prepare(struct xe_uc *uc)
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{
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/* GuC submission not enabled, nothing to do */
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if (!xe_device_uc_enabled(uc_to_xe(uc)))
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return 0;
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return xe_guc_reset_prepare(&uc->guc);
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}
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void xe_uc_gucrc_disable(struct xe_uc *uc)
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{
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XE_WARN_ON(xe_guc_pc_gucrc_disable(&uc->guc.pc));
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}
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void xe_uc_stop_prepare(struct xe_uc *uc)
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{
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xe_gsc_wait_for_worker_completion(&uc->gsc);
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xe_guc_stop_prepare(&uc->guc);
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}
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int xe_uc_stop(struct xe_uc *uc)
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{
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/* GuC submission not enabled, nothing to do */
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if (!xe_device_uc_enabled(uc_to_xe(uc)))
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return 0;
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return xe_guc_stop(&uc->guc);
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}
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int xe_uc_start(struct xe_uc *uc)
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{
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/* GuC submission not enabled, nothing to do */
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if (!xe_device_uc_enabled(uc_to_xe(uc)))
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return 0;
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return xe_guc_start(&uc->guc);
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}
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static void uc_reset_wait(struct xe_uc *uc)
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{
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int ret;
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again:
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xe_guc_reset_wait(&uc->guc);
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ret = xe_uc_reset_prepare(uc);
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if (ret)
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goto again;
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}
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int xe_uc_suspend(struct xe_uc *uc)
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{
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int ret;
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/* GuC submission not enabled, nothing to do */
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if (!xe_device_uc_enabled(uc_to_xe(uc)))
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return 0;
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uc_reset_wait(uc);
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ret = xe_uc_stop(uc);
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if (ret)
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return ret;
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return xe_guc_suspend(&uc->guc);
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}
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