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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2025 - Google Inc
* Author: Mostafa Saleh <smostafa@google.com>
* IOMMU API debug page alloc sanitizer
*/
#ifndef __LINUX_IOMMU_DEBUG_PAGEALLOC_H
#define __LINUX_IOMMU_DEBUG_PAGEALLOC_H
#ifdef CONFIG_IOMMU_DEBUG_PAGEALLOC
DECLARE_STATIC_KEY_FALSE(iommu_debug_initialized);
extern struct page_ext_operations page_iommu_debug_ops;
void __iommu_debug_check_unmapped(const struct page *page, int numpages);
static inline void iommu_debug_check_unmapped(const struct page *page, int numpages)
{
if (static_branch_unlikely(&iommu_debug_initialized))
__iommu_debug_check_unmapped(page, numpages);
}
#else
static inline void iommu_debug_check_unmapped(const struct page *page,
int numpages)
{
}
#endif /* CONFIG_IOMMU_DEBUG_PAGEALLOC */
#endif /* __LINUX_IOMMU_DEBUG_PAGEALLOC_H */
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