From edb48ff6e736ca39eb5b9db7dab4e43fefe387a0 Mon Sep 17 00:00:00 2001
From: Andrew Turner <andrew@FreeBSD.org>
Date: Wed, 23 Dec 2020 13:24:52 +0000
Subject: Mark all arm64 locore functions with ENTRY/LENTRY

It is useful to know where these are within the code, and will be
needed by later changes.

Sponsored by:	Innovate UK
---
 sys/arm64/arm64/locore.S | 33 ++++++++++++++++++++-------------
 1 file changed, 20 insertions(+), 13 deletions(-)

(limited to 'sys')

diff --git a/sys/arm64/arm64/locore.S b/sys/arm64/arm64/locore.S
index 6735ffe8900b1..20a0379a9aa1a 100644
--- a/sys/arm64/arm64/locore.S
+++ b/sys/arm64/arm64/locore.S
@@ -67,9 +67,7 @@
  *  We are loaded at a 2MiB aligned address
  */
 
-	.text
-	.globl _start
-_start:
+ENTRY(_start)
 #if defined(LINUX_BOOT_ABI)
 	/* U-boot image header */
 	b	1f			/* code 0 */
@@ -190,6 +188,7 @@ virtdone:
 	.quad	__bss_start
 .Lend:
 	.quad	__bss_end
+END(_start)
 
 #ifdef SMP
 /*
@@ -249,7 +248,7 @@ END(mpentry)
  * If we are started in EL2, configure the required hypervisor
  * registers and drop to EL1.
  */
-drop_to_el1:
+LENTRY(drop_to_el1)
 	mrs	x23, CurrentEL
 	lsr	x23, x23, #2
 	cmp	x23, #0x2
@@ -318,6 +317,7 @@ drop_to_el1:
 	.align 3
 .Lsctlr_res1:
 	.quad SCTLR_RES1
+LEND(drop_to_el1)
 
 #define	VECT_EMPTY	\
 	.align 7;	\
@@ -350,7 +350,7 @@ hyp_vectors:
  * virtual address we expect to run from. This is used when building the
  * initial page table.
  */
-get_virt_delta:
+LENTRY(get_virt_delta)
 	/* Load the physical address of virt_map */
 	adrp	x29, virt_map
 	add	x29, x29, :lo12:virt_map
@@ -366,6 +366,7 @@ get_virt_delta:
 	.align 3
 virt_map:
 	.quad	virt_map
+LEND(get_virt_delta)
 
 /*
  * This builds the page tables containing the identity map, and the kernel
@@ -386,7 +387,7 @@ virt_map:
  *    - The identity (PA = VA) L0 table (TTBR0)
  *    - The DMAP L1 tables
  */
-create_pagetables:
+LENTRY(create_pagetables)
 	/* Save the Link register */
 	mov	x5, x30
 
@@ -538,6 +539,7 @@ common:
 	/* Restore the Link register */
 	mov	x30, x5
 	ret
+LEND(create_pagetables)
 
 /*
  * Builds an L0 -> L1 table descriptor
@@ -551,7 +553,7 @@ common:
  *  x10 = Entry count
  *  x11, x12 and x13 are trashed
  */
-link_l0_pagetable:
+LENTRY(link_l0_pagetable)
 	/*
 	 * Link an L0 -> L1 table entry.
 	 */
@@ -575,6 +577,7 @@ link_l0_pagetable:
 	cbnz	x10, 1b
 
 	ret
+LEND(link_l0_pagetable)
 
 /*
  * Builds an L1 -> L2 table descriptor
@@ -587,7 +590,7 @@ link_l0_pagetable:
  *  x9  = L2 PA (trashed)
  *  x11, x12 and x13 are trashed
  */
-link_l1_pagetable:
+LENTRY(link_l1_pagetable)
 	/*
 	 * Link an L1 -> L2 table entry.
 	 */
@@ -606,6 +609,7 @@ link_l1_pagetable:
 	str	x13, [x6, x11, lsl #3]
 
 	ret
+LEND(link_l1_pagetable)
 
 /*
  * Builds count 1 GiB page table entry
@@ -616,7 +620,7 @@ link_l1_pagetable:
  *  x10 = Entry count
  *  x11, x12 and x13 are trashed
  */
-build_l1_block_pagetable:
+LENTRY(build_l1_block_pagetable)
 	/*
 	 * Build the L1 table entry.
 	 */
@@ -643,6 +647,7 @@ build_l1_block_pagetable:
 	cbnz	x10, 1b
 
 	ret
+LEND(build_l1_block_pagetable)
 
 /*
  * Builds count 2 MiB page table entry
@@ -653,7 +658,7 @@ build_l1_block_pagetable:
  *  x10 = Entry count
  *  x11, x12 and x13 are trashed
  */
-build_l2_block_pagetable:
+LENTRY(build_l2_block_pagetable)
 	/*
 	 * Build the L2 table entry.
 	 */
@@ -682,8 +687,9 @@ build_l2_block_pagetable:
 	cbnz	x10, 1b
 
 	ret
+LEND(build_l2_block_pagetable)
 
-start_mmu:
+LENTRY(start_mmu)
 	dsb	sy
 
 	/* Load the exception vectors */
@@ -775,10 +781,11 @@ sctlr_clear:
 	/* Bits to clear */
 	.quad (SCTLR_EE | SCTLR_EOE | SCTLR_IESB | SCTLR_WXN | SCTLR_UMA | \
 	    SCTLR_ITD | SCTLR_A)
+LEND(start_mmu)
 
-	.globl abort
-abort:
+ENTRY(abort)
 	b abort
+END(abort)
 
 	.align 3
 init_pt_va:
-- 
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