diff options
| author | Dave Airlie <airlied@redhat.com> | 2025-09-15 17:51:07 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2025-09-15 17:51:07 +1000 |
| commit | 0d9f0083f7a5a31d91d501467b499bb8c4b25bdf (patch) | |
| tree | 5670a6d87e7cb5c421809babf9dc9e72ff40f8ae /include/linux/pgalloc.h | |
| parent | 2cda9a063dd6f21e5294092a679afdcd0fc58549 (diff) | |
| parent | f83ec76bf285bea5727f478a68b894f5543ca76e (diff) | |
Merge tag 'v6.17-rc6' into drm-next
This is a backmerge of Linux 6.17-rc6, needed for msm,
also requested by misc.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/linux/pgalloc.h')
| -rw-r--r-- | include/linux/pgalloc.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/pgalloc.h b/include/linux/pgalloc.h new file mode 100644 index 000000000000..9174fa59bbc5 --- /dev/null +++ b/include/linux/pgalloc.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_PGALLOC_H +#define _LINUX_PGALLOC_H + +#include <linux/pgtable.h> +#include <asm/pgalloc.h> + +/* + * {pgd,p4d}_populate_kernel() are defined as macros to allow + * compile-time optimization based on the configured page table levels. + * Without this, linking may fail because callers (e.g., KASAN) may rely + * on calls to these functions being optimized away when passing symbols + * that exist only for certain page table levels. + */ +#define pgd_populate_kernel(addr, pgd, p4d) \ + do { \ + pgd_populate(&init_mm, pgd, p4d); \ + if (ARCH_PAGE_TABLE_SYNC_MASK & PGTBL_PGD_MODIFIED) \ + arch_sync_kernel_mappings(addr, addr); \ + } while (0) + +#define p4d_populate_kernel(addr, p4d, pud) \ + do { \ + p4d_populate(&init_mm, p4d, pud); \ + if (ARCH_PAGE_TABLE_SYNC_MASK & PGTBL_P4D_MODIFIED) \ + arch_sync_kernel_mappings(addr, addr); \ + } while (0) + +#endif /* _LINUX_PGALLOC_H */ |