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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2026-03-12 20:44:42 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2026-03-12 20:44:42 +0300 |
| commit | 0421ccdfad0d92713a812a5aeb7d07b0ea7213c8 (patch) | |
| tree | 9a648660192c72df7e815216f0908fdabc735f0c /include/linux/iommu-debug-pagealloc.h | |
| parent | 6d4b67a2a76a4ff2393fe88119ae4332821b82b4 (diff) | |
| parent | 1f318b96cc84d7c2ab792fcc0bfd42a7ca890681 (diff) | |
| download | linux-0421ccdfad0d92713a812a5aeb7d07b0ea7213c8.tar.xz | |
Merge tag 'v7.0-rc3' into next
Sync up with the mainline to brig up the latest changes, specifically
changes to ALPS driver.
Diffstat (limited to 'include/linux/iommu-debug-pagealloc.h')
| -rw-r--r-- | include/linux/iommu-debug-pagealloc.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/linux/iommu-debug-pagealloc.h b/include/linux/iommu-debug-pagealloc.h new file mode 100644 index 000000000000..46c3c1f70150 --- /dev/null +++ b/include/linux/iommu-debug-pagealloc.h @@ -0,0 +1,32 @@ +// 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 */ |