From 638a9e433ecd61e64761352dbec1fa4f5874c941 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 7 Aug 2024 15:18:06 +0200
Subject: Merging upstream version 6.10.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 arch/arm/lib/Makefile              |  3 +--
 arch/arm/lib/csumpartialcopyuser.S | 20 +++++++++++++++++++-
 arch/arm/lib/delay-loop.S          | 16 ++++++++++------
 arch/arm/lib/uaccess_with_memcpy.c |  4 ++--
 4 files changed, 32 insertions(+), 11 deletions(-)

(limited to 'arch/arm/lib')

diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 650404be67..0ca5aae1bc 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -40,8 +40,7 @@ $(obj)/csumpartialcopy.o:	$(obj)/csumpartialcopygeneric.S
 $(obj)/csumpartialcopyuser.o:	$(obj)/csumpartialcopygeneric.S
 
 ifeq ($(CONFIG_KERNEL_MODE_NEON),y)
-  NEON_FLAGS			:= -march=armv7-a -mfloat-abi=softfp -mfpu=neon
-  CFLAGS_xor-neon.o		+= $(NEON_FLAGS)
+  CFLAGS_xor-neon.o		+= $(CC_FLAGS_FPU)
   obj-$(CONFIG_XOR_BLOCKS)	+= xor-neon.o
 endif
 
diff --git a/arch/arm/lib/csumpartialcopyuser.S b/arch/arm/lib/csumpartialcopyuser.S
index 6928781e6b..c289bde047 100644
--- a/arch/arm/lib/csumpartialcopyuser.S
+++ b/arch/arm/lib/csumpartialcopyuser.S
@@ -13,7 +13,8 @@
 
 		.text
 
-#ifdef CONFIG_CPU_SW_DOMAIN_PAN
+#if defined(CONFIG_CPU_SW_DOMAIN_PAN)
+
 		.macro	save_regs
 		mrc	p15, 0, ip, c3, c0, 0
 		stmfd	sp!, {r1, r2, r4 - r8, ip, lr}
@@ -25,7 +26,23 @@
 		mcr	p15, 0, ip, c3, c0, 0
 		ret	lr
 		.endm
+
+#elif defined(CONFIG_CPU_TTBR0_PAN)
+
+		.macro	save_regs
+		mrc	p15, 0, ip, c2, c0, 2		@ read TTBCR
+		stmfd	sp!, {r1, r2, r4 - r8, ip, lr}
+		uaccess_enable ip
+		.endm
+
+		.macro	load_regs
+		ldmfd	sp!, {r1, r2, r4 - r8, ip, lr}
+		mcr	p15, 0, ip, c2, c0, 2		@ restore TTBCR
+		ret	lr
+		.endm
+
 #else
+
 		.macro	save_regs
 		stmfd	sp!, {r1, r2, r4 - r8, lr}
 		.endm
@@ -33,6 +50,7 @@
 		.macro	load_regs
 		ldmfd	sp!, {r1, r2, r4 - r8, pc}
 		.endm
+
 #endif
 
 		.macro	load1b,	reg1
diff --git a/arch/arm/lib/delay-loop.S b/arch/arm/lib/delay-loop.S
index 3ac05177d0..33b08ca1c2 100644
--- a/arch/arm/lib/delay-loop.S
+++ b/arch/arm/lib/delay-loop.S
@@ -5,6 +5,7 @@
  *  Copyright (C) 1995, 1996 Russell King
  */
 #include <linux/linkage.h>
+#include <linux/cfi_types.h>
 #include <asm/assembler.h>
 #include <asm/delay.h>
 
@@ -24,21 +25,26 @@
  * HZ  <= 1000
  */
 
-ENTRY(__loop_udelay)
+SYM_TYPED_FUNC_START(__loop_udelay)
 		ldr	r2, .LC1
 		mul	r0, r2, r0		@ r0 = delay_us * UDELAY_MULT
-ENTRY(__loop_const_udelay)			@ 0 <= r0 <= 0xfffffaf0
+		b	__loop_const_udelay
+SYM_FUNC_END(__loop_udelay)
+
+SYM_TYPED_FUNC_START(__loop_const_udelay)	@ 0 <= r0 <= 0xfffffaf0
 		ldr	r2, .LC0
 		ldr	r2, [r2]
 		umull	r1, r0, r2, r0		@ r0-r1 = r0 * loops_per_jiffy
 		adds	r1, r1, #0xffffffff	@ rounding up ...
 		adcs	r0, r0, r0		@ and right shift by 31
 		reteq	lr
+		b	__loop_delay
+SYM_FUNC_END(__loop_const_udelay)
 
 		.align 3
 
 @ Delay routine
-ENTRY(__loop_delay)
+SYM_TYPED_FUNC_START(__loop_delay)
 		subs	r0, r0, #1
 #if 0
 		retls	lr
@@ -58,6 +64,4 @@ ENTRY(__loop_delay)
 #endif
 		bhi	__loop_delay
 		ret	lr
-ENDPROC(__loop_udelay)
-ENDPROC(__loop_const_udelay)
-ENDPROC(__loop_delay)
+SYM_FUNC_END(__loop_delay)
diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c
index 2f6163f05e..c0ac7796d7 100644
--- a/arch/arm/lib/uaccess_with_memcpy.c
+++ b/arch/arm/lib/uaccess_with_memcpy.c
@@ -56,10 +56,10 @@ pin_page_for_write(const void __user *_addr, pte_t **ptep, spinlock_t **ptlp)
 	 * to see that it's still huge and whether or not we will
 	 * need to fault on write.
 	 */
-	if (unlikely(pmd_thp_or_huge(*pmd))) {
+	if (unlikely(pmd_leaf(*pmd))) {
 		ptl = &current->mm->page_table_lock;
 		spin_lock(ptl);
-		if (unlikely(!pmd_thp_or_huge(*pmd)
+		if (unlikely(!pmd_leaf(*pmd)
 			|| pmd_hugewillfault(*pmd))) {
 			spin_unlock(ptl);
 			return 0;
-- 
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