The patch titled
Subject: ARM: head.S: rename PMD_ORDER to PMD_ENTRY_ORDER
has been added to the -mm mm-unstable branch. Its filename is
arm-heads-rename-pmd_order-to-pmd_entry_order.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/arm-heads-rename-pmd_order-to-pmd_entry_order.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Subject: ARM: head.S: rename PMD_ORDER to PMD_ENTRY_ORDER
Date: Tue, 5 Jul 2022 18:47:08 +0300
PMD_ORDER denotes order of magnitude for a PMD entry, i.e PMD entry size
is 2 ^ PMD_ORDER.
Rename PMD_ORDER to PMD_ENTRY_ORDER to allow a generic definition of
PMD_ORDER as order of a PMD allocation: (PMD_SHIFT - PAGE_SHIFT).
Link: https://lkml.kernel.org/r/20220705154708.181258-16-rppt@xxxxxxxxxx
Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Acked-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm/kernel/head.S | 34 +++++++++++++++++-----------------
1 file changed, 17 insertions(+), 17 deletions(-)
--- a/arch/arm/kernel/head.S~arm-heads-rename-pmd_order-to-pmd_entry_order
+++ a/arch/arm/kernel/head.S
@@ -38,10 +38,10 @@
#ifdef CONFIG_ARM_LPAE
/* LPAE requires an additional page for the PGD */
#define PG_DIR_SIZE 0x5000
-#define PMD_ORDER 3
+#define PMD_ENTRY_ORDER 3 /* PMD entry size is 2^PMD_ENTRY_ORDER */
#else
#define PG_DIR_SIZE 0x4000
-#define PMD_ORDER 2
+#define PMD_ENTRY_ORDER 2
#endif
.globl swapper_pg_dir
@@ -240,7 +240,7 @@ __create_page_tables:
mov r6, r6, lsr #SECTION_SHIFT
1: orr r3, r7, r5, lsl #SECTION_SHIFT @ flags + kernel base
- str r3, [r4, r5, lsl #PMD_ORDER] @ identity mapping
+ str r3, [r4, r5, lsl #PMD_ENTRY_ORDER] @ identity mapping
cmp r5, r6
addlo r5, r5, #1 @ next section
blo 1b
@@ -250,7 +250,7 @@ __create_page_tables:
* set two variables to indicate the physical start and end of the
* kernel.
*/
- add r0, r4, #KERNEL_OFFSET >> (SECTION_SHIFT - PMD_ORDER)
+ add r0, r4, #KERNEL_OFFSET >> (SECTION_SHIFT - PMD_ENTRY_ORDER)
ldr r6, =(_end - 1)
adr_l r5, kernel_sec_start @ _pa(kernel_sec_start)
#if defined CONFIG_CPU_ENDIAN_BE8 || defined CONFIG_CPU_ENDIAN_BE32
@@ -259,8 +259,8 @@ __create_page_tables:
str r8, [r5] @ Save physical start of kernel (LE)
#endif
orr r3, r8, r7 @ Add the MMU flags
- add r6, r4, r6, lsr #(SECTION_SHIFT - PMD_ORDER)
-1: str r3, [r0], #1 << PMD_ORDER
+ add r6, r4, r6, lsr #(SECTION_SHIFT - PMD_ENTRY_ORDER)
+1: str r3, [r0], #1 << PMD_ENTRY_ORDER
add r3, r3, #1 << SECTION_SHIFT
cmp r0, r6
bls 1b
@@ -280,14 +280,14 @@ __create_page_tables:
mov r3, pc
mov r3, r3, lsr #SECTION_SHIFT
orr r3, r7, r3, lsl #SECTION_SHIFT
- add r0, r4, #(XIP_START & 0xff000000) >> (SECTION_SHIFT - PMD_ORDER)
- str r3, [r0, #((XIP_START & 0x00f00000) >> SECTION_SHIFT) << PMD_ORDER]!
+ add r0, r4, #(XIP_START & 0xff000000) >> (SECTION_SHIFT - PMD_ENTRY_ORDER)
+ str r3, [r0, #((XIP_START & 0x00f00000) >> SECTION_SHIFT) << PMD_ENTRY_ORDER]!
ldr r6, =(_edata_loc - 1)
- add r0, r0, #1 << PMD_ORDER
- add r6, r4, r6, lsr #(SECTION_SHIFT - PMD_ORDER)
+ add r0, r0, #1 << PMD_ENTRY_ORDER
+ add r6, r4, r6, lsr #(SECTION_SHIFT - PMD_ENTRY_ORDER)
1: cmp r0, r6
add r3, r3, #1 << SECTION_SHIFT
- strls r3, [r0], #1 << PMD_ORDER
+ strls r3, [r0], #1 << PMD_ENTRY_ORDER
bls 1b
#endif
@@ -297,10 +297,10 @@ __create_page_tables:
*/
mov r0, r2, lsr #SECTION_SHIFT
cmp r2, #0
- ldrne r3, =FDT_FIXED_BASE >> (SECTION_SHIFT - PMD_ORDER)
+ ldrne r3, =FDT_FIXED_BASE >> (SECTION_SHIFT - PMD_ENTRY_ORDER)
addne r3, r3, r4
orrne r6, r7, r0, lsl #SECTION_SHIFT
- strne r6, [r3], #1 << PMD_ORDER
+ strne r6, [r3], #1 << PMD_ENTRY_ORDER
addne r6, r6, #1 << SECTION_SHIFT
strne r6, [r3]
@@ -319,7 +319,7 @@ __create_page_tables:
addruart r7, r3, r0
mov r3, r3, lsr #SECTION_SHIFT
- mov r3, r3, lsl #PMD_ORDER
+ mov r3, r3, lsl #PMD_ENTRY_ORDER
add r0, r4, r3
mov r3, r7, lsr #SECTION_SHIFT
@@ -349,7 +349,7 @@ __create_page_tables:
* If we're using the NetWinder or CATS, we also need to map
* in the 16550-type serial port for the debug messages
*/
- add r0, r4, #0xff000000 >> (SECTION_SHIFT - PMD_ORDER)
+ add r0, r4, #0xff000000 >> (SECTION_SHIFT - PMD_ENTRY_ORDER)
orr r3, r7, #0x7c000000
str r3, [r0]
#endif
@@ -359,10 +359,10 @@ __create_page_tables:
* Similar reasons here - for debug. This is
* only for Acorn RiscPC architectures.
*/
- add r0, r4, #0x02000000 >> (SECTION_SHIFT - PMD_ORDER)
+ add r0, r4, #0x02000000 >> (SECTION_SHIFT - PMD_ENTRY_ORDER)
orr r3, r7, #0x02000000
str r3, [r0]
- add r0, r4, #0xd8000000 >> (SECTION_SHIFT - PMD_ORDER)
+ add r0, r4, #0xd8000000 >> (SECTION_SHIFT - PMD_ENTRY_ORDER)
str r3, [r0]
#endif
#endif
_
Patches currently in -mm which might be from rppt@xxxxxxxxxxxxx are
csky-drop-definition-of-pte_order.patch
csky-drop-definition-of-pgd_order.patch
mips-rename-pud_order-to-pud_table_order.patch
mips-drop-definitions-of-pte_order.patch
mips-rename-pgd_order-to-pgd_table_order.patch
nios2-drop-definition-of-pte_order.patch
nios2-drop-definition-of-pgd_order.patch
loongarch-drop-definition-of-pte_order.patch
loongarch-drop-definition-of-pmd_order.patch
loongarch-drop-definition-of-pud_order.patch
loongarch-drop-definition-of-pgd_order.patch
loongarch-drop-definition-of-pgd_order-v2.patch
parisc-rename-pgd_order-to-pgd_table_order.patch
xtensa-drop-definition-of-pgd_order.patch
arm-heads-rename-pmd_order-to-pmd_entry_order.patch
