The branch main has been updated by manu:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=fd62b3fa1e82c8de3a1abacd4587fe4142e34d96

commit fd62b3fa1e82c8de3a1abacd4587fe4142e34d96
Author:     Emmanuel Vadot <[email protected]>
AuthorDate: 2022-08-09 09:36:44 +0000
Commit:     Emmanuel Vadot <[email protected]>
CommitDate: 2022-08-18 07:46:33 +0000

    linuxkpi: pgtable: Add more defines
    
    Needed by drm-kmod
    
    Reviewed by:    bz
    Obtained from:  drm-kmod
    Sponsored by:   Beckhoff Automation GmbH & Co. KG
    Differential Revision:  https://reviews.freebsd.org/D36101
---
 sys/compat/linuxkpi/common/include/asm/pgtable.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/sys/compat/linuxkpi/common/include/asm/pgtable.h 
b/sys/compat/linuxkpi/common/include/asm/pgtable.h
index 9e66fab8eae4..93e1bbef9a12 100644
--- a/sys/compat/linuxkpi/common/include/asm/pgtable.h
+++ b/sys/compat/linuxkpi/common/include/asm/pgtable.h
@@ -42,4 +42,19 @@ typedef struct page *pgtable_t;
 
 #define        pgprot_decrypted(prot)  (prot)
 
+#if defined(__i386__) || defined(__amd64__)
+#define        _PAGE_BIT_PRESENT       0
+#define        _PAGE_BIT_RW            1
+#define        _PAGE_BIT_USER          2
+#define        _PAGE_BIT_PWT           3
+#define        _PAGE_BIT_PCD           4
+#define        _PAGE_BIT_PAT           7
+
+#define        _PAGE_PRESENT   (((pteval_t) 1) << _PAGE_BIT_PRESENT)
+#define        _PAGE_RW        (((pteval_t) 1) << _PAGE_BIT_RW)
+#define        _PAGE_PWT       (((pteval_t) 1) << _PAGE_BIT_PWT)
+#define        _PAGE_PCD       (((pteval_t) 1) << _PAGE_BIT_PCD)
+#define        _PAGE_PAT       (((pteval_t) 1) << _PAGE_BIT_PAT)
+#endif
+
 #endif /* _LINUXKPI_ASM_PGTABLE_H_ */

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