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// SPDX-License-Identifier: MIT
/*
* Copyright © 2022 Intel Corporation
*/
#include "xe_device.h"
#include "xe_huc.h"
#include "xe_gt.h"
#include "xe_guc.h"
#include "xe_guc_pc.h"
#include "xe_guc_submit.h"
#include "xe_uc.h"
#include "xe_uc_fw.h"
#include "xe_wopcm.h"
static struct xe_gt *
uc_to_gt(struct xe_uc *uc)
{
return container_of(uc, struct xe_gt, uc);
}
static struct xe_device *
uc_to_xe(struct xe_uc *uc)
{
return gt_to_xe(uc_to_gt(uc));
}
/* Should be called once at driver load only */
int xe_uc_init(struct xe_uc *uc)
{
int ret;
/* GuC submission not enabled, nothing to do */
if (!xe_device_guc_submission_enabled(uc_to_xe(uc)))
return 0;
ret = xe_guc_init(&uc->guc);
if (ret)
goto err;
ret = xe_huc_init(&uc->huc);
if (ret)
goto err;
ret = xe_wopcm_init(&uc->wopcm);
if (ret)
goto err;
ret = xe_guc_submit_init(&uc->guc);
if (ret)
goto err;
return 0;
err:
/* If any uC firmwares not found, fall back to execlists */
xe_device_guc_submission_disable(uc_to_xe(uc));
return ret;
}
/**
* xe_uc_init_post_hwconfig - init Uc post hwconfig load
* @uc: The UC object
*
* Return: 0 on success, negative error code on error.
*/
int xe_uc_init_post_hwconfig(struct xe_uc *uc)
{
/* GuC submission not enabled, nothing to do */
if (!xe_device_guc_submission_enabled(uc_to_xe(uc)))
return 0;
return xe_guc_init_post_hwconfig(&uc->guc);
}
static int uc_reset(struct xe_uc *uc)
{
struct xe_device *xe = uc_to_xe(uc);
int ret;
ret = xe_guc_reset(&uc->guc);
if (ret) {
drm_err(&xe->drm, "Failed to reset GuC, ret = %d\n", ret);
return ret;
}
return 0;
}
static int uc_sanitize(struct xe_uc *uc)
{
xe_huc_sanitize(&uc->huc);
xe_guc_sanitize(&uc->guc);
return uc_reset(uc);
}
/**
* xe_uc_init_hwconfig - minimally init Uc, read and parse hwconfig
* @uc: The UC object
*
* Return: 0 on success, negative error code on error.
*/
int xe_uc_init_hwconfig(struct xe_uc *uc)
{
int ret;
/* GuC submission not enabled, nothing to do */
if (!xe_device_guc_submission_enabled(uc_to_xe(uc)))
return 0;
ret = xe_guc_min_load_for_hwconfig(&uc->guc);
if (ret)
return ret;
return 0;
}
/*
* Should be called during driver load, after every GT reset, and after every
* suspend to reload / auth the firmwares.
*/
int xe_uc_init_hw(struct xe_uc *uc)
{
int ret;
/* GuC submission not enabled, nothing to do */
if (!xe_device_guc_submission_enabled(uc_to_xe(uc)))
return 0;
ret = uc_sanitize(uc);
if (ret)
return ret;
ret = xe_huc_upload(&uc->huc);
if (ret)
return ret;
ret = xe_guc_upload(&uc->guc);
if (ret)
return ret;
ret = xe_guc_enable_communication(&uc->guc);
if (ret)
return ret;
ret = xe_gt_record_default_lrcs(uc_to_gt(uc));
if (ret)
return ret;
ret = xe_guc_post_load_init(&uc->guc);
if (ret)
return ret;
ret = xe_guc_pc_start(&uc->guc.pc);
if (ret)
return ret;
/* We don't fail the driver load if HuC fails to auth, but let's warn */
ret = xe_huc_auth(&uc->huc);
XE_WARN_ON(ret);
return 0;
}
int xe_uc_reset_prepare(struct xe_uc *uc)
{
/* GuC submission not enabled, nothing to do */
if (!xe_device_guc_submission_enabled(uc_to_xe(uc)))
return 0;
return xe_guc_reset_prepare(&uc->guc);
}
void xe_uc_stop_prepare(struct xe_uc *uc)
{
xe_guc_stop_prepare(&uc->guc);
}
int xe_uc_stop(struct xe_uc *uc)
{
/* GuC submission not enabled, nothing to do */
if (!xe_device_guc_submission_enabled(uc_to_xe(uc)))
return 0;
return xe_guc_stop(&uc->guc);
}
int xe_uc_start(struct xe_uc *uc)
{
/* GuC submission not enabled, nothing to do */
if (!xe_device_guc_submission_enabled(uc_to_xe(uc)))
return 0;
return xe_guc_start(&uc->guc);
}
static void uc_reset_wait(struct xe_uc *uc)
{
int ret;
again:
xe_guc_reset_wait(&uc->guc);
ret = xe_uc_reset_prepare(uc);
if (ret)
goto again;
}
int xe_uc_suspend(struct xe_uc *uc)
{
int ret;
/* GuC submission not enabled, nothing to do */
if (!xe_device_guc_submission_enabled(uc_to_xe(uc)))
return 0;
uc_reset_wait(uc);
ret = xe_uc_stop(uc);
if (ret)
return ret;
return xe_guc_suspend(&uc->guc);
}
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