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Subject[PATCH v2 03/20] ARM: LPAE: use u32 instead of unsigned long for 32-bit ptes
Date
From: Will Deacon <will.deacon@arm.com>

When using 2-level paging, pte_t and pmd_t are typedefs for
unsigned long but phys_addr_t is a typedef for u32.

This patch uses u32 for the page table entry types when
phys_addr_t is not 64-bit, allowing the same conversion
specifier to be used for physical addresses and page table
entries regardless of LPAE.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
arch/arm/include/asm/page-nommu.h | 8 ++++----
arch/arm/include/asm/pgtable-2level-types.h | 18 +++++++++---------
2 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/arch/arm/include/asm/page-nommu.h b/arch/arm/include/asm/page-nommu.h
index d1b162a..a20641a 100644
--- a/arch/arm/include/asm/page-nommu.h
+++ b/arch/arm/include/asm/page-nommu.h
@@ -29,10 +29,10 @@
/*
* These are used to make use of C type-checking..
*/
-typedef unsigned long pte_t;
-typedef unsigned long pmd_t;
-typedef unsigned long pgd_t[2];
-typedef unsigned long pgprot_t;
+typedef u32 pte_t;
+typedef u32 pmd_t;
+typedef u32 pgd_t[2];
+typedef u32 pgprot_t;

#define pte_val(x) (x)
#define pmd_val(x) (x)
diff --git a/arch/arm/include/asm/pgtable-2level-types.h b/arch/arm/include/asm/pgtable-2level-types.h
index 30f6741..adc4928 100644
--- a/arch/arm/include/asm/pgtable-2level-types.h
+++ b/arch/arm/include/asm/pgtable-2level-types.h
@@ -21,16 +21,16 @@

#undef STRICT_MM_TYPECHECKS

-typedef unsigned long pteval_t;
+typedef u32 pteval_t;

#ifdef STRICT_MM_TYPECHECKS
/*
* These are used to make use of C type-checking..
*/
-typedef struct { unsigned long pte; } pte_t;
-typedef struct { unsigned long pmd; } pmd_t;
-typedef struct { unsigned long pgd[2]; } pgd_t;
-typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct { u32 pte; } pte_t;
+typedef struct { u32 pmd; } pmd_t;
+typedef struct { u32 pgd[2]; } pgd_t;
+typedef struct { u32 pgprot; } pgprot_t;

#define pte_val(x) ((x).pte)
#define pmd_val(x) ((x).pmd)
@@ -45,10 +45,10 @@ typedef struct { unsigned long pgprot; } pgprot_t;
/*
* .. while these make it easier on the compiler
*/
-typedef unsigned long pte_t;
-typedef unsigned long pmd_t;
-typedef unsigned long pgd_t[2];
-typedef unsigned long pgprot_t;
+typedef u32 pte_t;
+typedef u32 pmd_t;
+typedef u32 pgd_t[2];
+typedef u32 pgprot_t;

#define pte_val(x) (x)
#define pmd_val(x) (x)

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