mm: introduce include/linux/pgtable.h

The include/linux/pgtable.h is going to be the home of generic page table
manipulation functions.

Start with moving asm-generic/pgtable.h to include/linux/pgtable.h and
make the latter include asm/pgtable.h.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200514170327.31389-3-rppt@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 files changed, 13 insertions, 12 deletions

diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 3a7871130112..8b1e020e9a03 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -972,7 +972,7 @@ static inline void iounmap(void __iomem *addr)
 }
 #endif
 #elif defined(CONFIG_GENERIC_IOREMAP)
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 
 void __iomem *ioremap_prot(phys_addr_t addr, size_t size, unsigned long prot);
 void iounmap(volatile void __iomem *addr);
diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h
index bc156285d097..be79a45d7aa3 100644
--- a/include/linux/crash_dump.h
+++ b/include/linux/crash_dump.h
@@ -7,7 +7,7 @@
 #include <linux/elf.h>
 #include <uapi/linux/vmcore.h>
 
-#include <asm/pgtable.h> /* for pgprot_t */
+#include <linux/pgtable.h> /* for pgprot_t */
 
 #ifdef CONFIG_CRASH_DUMP
 #define ELFCORE_ADDR_MAX	(-1ULL)
diff --git a/include/linux/dma-noncoherent.h b/include/linux/dma-noncoherent.h
index b59f1b6be3e9..ca09a4e07d2d 100644
--- a/include/linux/dma-noncoherent.h
+++ b/include/linux/dma-noncoherent.h
@@ -3,7 +3,7 @@
 #define _LINUX_DMA_NONCOHERENT_H 1
 
 #include <linux/dma-mapping.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 
 #ifdef CONFIG_ARCH_HAS_DMA_COHERENCE_H
 #include <asm/dma-coherence.h>
diff --git a/include/linux/hmm.h b/include/linux/hmm.h
index e912b9dc4633..f4a09ed223ac 100644
--- a/include/linux/hmm.h
+++ b/include/linux/hmm.h
@@ -10,7 +10,7 @@
 #define LINUX_HMM_H
 
 #include <linux/kconfig.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 
 #include <linux/device.h>
 #include <linux/migrate.h>
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 0cced410e0bd..50650d0d01b9 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -9,7 +9,7 @@
 #include <linux/cgroup.h>
 #include <linux/list.h>
 #include <linux/kref.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 
 struct ctl_table;
 struct user_struct;
diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h
index b336622612f3..94e24e58966d 100644
--- a/include/linux/io-mapping.h
+++ b/include/linux/io-mapping.h
@@ -99,7 +99,7 @@ io_mapping_unmap(void __iomem *vaddr)
 #else
 
 #include <linux/uaccess.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 
 /* Create the io_mapping object*/
 static inline struct io_mapping *
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 31314ca7c635..17d8915eaebb 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -12,7 +12,7 @@ struct task_struct;
 #ifdef CONFIG_KASAN
 
 #include <asm/kasan.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 
 extern unsigned char kasan_early_shadow_page[PAGE_SIZE];
 extern pte_t kasan_early_shadow_pte[PTRS_PER_PTE];
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 9d6042178ca7..af0a09b89837 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -92,7 +92,7 @@ extern int mmap_rnd_compat_bits __read_mostly;
 #endif
 
 #include <asm/page.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 #include <asm/processor.h>
 
 /*
diff --git a/include/asm-generic/pgtable.h b/include/linux/pgtable.h
index 0a9329656ae6..6e274da637fd 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/linux/pgtable.h
@@ -1,8 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_GENERIC_PGTABLE_H
-#define _ASM_GENERIC_PGTABLE_H
+#ifndef _LINUX_PGTABLE_H
+#define _LINUX_PGTABLE_H
 
 #include <linux/pfn.h>
+#include <asm/pgtable.h>
 
 #ifndef __ASSEMBLY__
 #ifdef CONFIG_MMU
@@ -1319,4 +1320,4 @@ typedef unsigned int pgtbl_mod_mask;
 #define pmd_leaf(x)	0
 #endif
 
-#endif /* _ASM_GENERIC_PGTABLE_H */
+#endif /* _LINUX_PGTABLE_H */
diff --git a/include/xen/arm/page.h b/include/xen/arm/page.h
index f77dcbcba5a6..be35f64f2e43 100644
--- a/include/xen/arm/page.h
+++ b/include/xen/arm/page.h
@@ -3,7 +3,7 @@
 #define _ASM_ARM_XEN_PAGE_H
 
 #include <asm/page.h>
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
 
 #include <linux/pfn.h>
 #include <linux/types.h>