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// SPDX-License-Identifier: MIT
/*
* Copyright © 2025 Intel Corporation
*/
#include <drm/intel/xe_sriov_vfio.h>
#include <linux/cleanup.h>
#include "xe_pci.h"
#include "xe_pm.h"
#include "xe_sriov_pf_control.h"
#include "xe_sriov_pf_helpers.h"
#include "xe_sriov_pf_migration.h"
struct xe_device *xe_sriov_vfio_get_pf(struct pci_dev *pdev)
{
return xe_pci_to_pf_device(pdev);
}
EXPORT_SYMBOL_FOR_MODULES(xe_sriov_vfio_get_pf, "xe-vfio-pci");
bool xe_sriov_vfio_migration_supported(struct xe_device *xe)
{
if (!IS_SRIOV_PF(xe))
return -EPERM;
return xe_sriov_pf_migration_supported(xe);
}
EXPORT_SYMBOL_FOR_MODULES(xe_sriov_vfio_migration_supported, "xe-vfio-pci");
#define DEFINE_XE_SRIOV_VFIO_FUNCTION(_type, _func, _impl) \
_type xe_sriov_vfio_##_func(struct xe_device *xe, unsigned int vfid) \
{ \
if (!IS_SRIOV_PF(xe)) \
return -EPERM; \
if (vfid == PFID || vfid > xe_sriov_pf_num_vfs(xe)) \
return -EINVAL; \
\
guard(xe_pm_runtime_noresume)(xe); \
\
return xe_sriov_pf_##_impl(xe, vfid); \
} \
EXPORT_SYMBOL_FOR_MODULES(xe_sriov_vfio_##_func, "xe-vfio-pci")
DEFINE_XE_SRIOV_VFIO_FUNCTION(int, wait_flr_done, control_wait_flr);
DEFINE_XE_SRIOV_VFIO_FUNCTION(int, suspend_device, control_pause_vf);
DEFINE_XE_SRIOV_VFIO_FUNCTION(int, resume_device, control_resume_vf);
DEFINE_XE_SRIOV_VFIO_FUNCTION(int, stop_copy_enter, control_trigger_save_vf);
DEFINE_XE_SRIOV_VFIO_FUNCTION(int, stop_copy_exit, control_finish_save_vf);
DEFINE_XE_SRIOV_VFIO_FUNCTION(int, resume_data_enter, control_trigger_restore_vf);
DEFINE_XE_SRIOV_VFIO_FUNCTION(int, resume_data_exit, control_finish_restore_vf);
DEFINE_XE_SRIOV_VFIO_FUNCTION(int, error, control_stop_vf);
DEFINE_XE_SRIOV_VFIO_FUNCTION(ssize_t, stop_copy_size, migration_size);
ssize_t xe_sriov_vfio_data_read(struct xe_device *xe, unsigned int vfid,
char __user *buf, size_t len)
{
if (!IS_SRIOV_PF(xe))
return -EPERM;
if (vfid == PFID || vfid > xe_sriov_pf_num_vfs(xe))
return -EINVAL;
guard(xe_pm_runtime_noresume)(xe);
return xe_sriov_pf_migration_read(xe, vfid, buf, len);
}
EXPORT_SYMBOL_FOR_MODULES(xe_sriov_vfio_data_read, "xe-vfio-pci");
ssize_t xe_sriov_vfio_data_write(struct xe_device *xe, unsigned int vfid,
const char __user *buf, size_t len)
{
if (!IS_SRIOV_PF(xe))
return -EPERM;
if (vfid == PFID || vfid > xe_sriov_pf_num_vfs(xe))
return -EINVAL;
guard(xe_pm_runtime_noresume)(xe);
return xe_sriov_pf_migration_write(xe, vfid, buf, len);
}
EXPORT_SYMBOL_FOR_MODULES(xe_sriov_vfio_data_write, "xe-vfio-pci");
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