[linux-yocto] [PATCH 08/26] arm64: Fold proc-macros.S into assembler.h

[Daniel Dragomir]

From: Geoff Levand <geoff at infradead.org>

To allow the assembler macros defined in arch/arm64/mm/proc-macros.S
to be used outside the mm code move the contents of proc-macros.S to
asm/assembler.h.
Also, delete proc-macros.S, and fix up all references to
proc-macros.S.

Signed-off-by: Geoff Levand <geoff at infradead.org>
---
 arch/arm64/include/asm/assembler.h | 48 +++++++++++++++++++++++++++++++++++++-
 arch/arm64/kernel/head.S           |  1 -
 arch/arm64/kvm/hyp-init.S          |  1 -
 arch/arm64/mm/cache.S              |  2 --
 arch/arm64/mm/proc.S               |  3 ---
 5 files changed, 47 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 144b64a..60a8ea5 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -1,5 +1,5 @@
 /*
- * Based on arch/arm/include/asm/assembler.h
+ * Based on arch/arm/include/asm/assembler.h, arch/arm/mm/proc-macros.S
  *
  * Copyright (C) 1996-2000 Russell King
  * Copyright (C) 2012 ARM Ltd.
@@ -23,6 +23,8 @@
 #ifndef __ASM_ASSEMBLER_H
 #define __ASM_ASSEMBLER_H
 
+#include <asm/asm-offsets.h>
+#include <asm/pgtable-hwdef.h>
 #include <asm/ptrace.h>
 #include <asm/thread_info.h>
 
@@ -207,4 +209,48 @@ lr	.req	x30		// link register
 	str	\src, [\tmp, :lo12:\sym]
 	.endm
 
+/*
+ * vma_vm_mm - get mm pointer from vma pointer (vma->vm_mm)
+ */
+	.macro	vma_vm_mm, rd, rn
+	ldr	\rd, [\rn, #VMA_VM_MM]
+	.endm
+
+/*
+ * mmid - get context id from mm pointer (mm->context.id)
+ */
+	.macro	mmid, rd, rn
+	ldr	\rd, [\rn, #MM_CONTEXT_ID]
+	.endm
+
+/*
+ * dcache_line_size - get the minimum D-cache line size from the CTR register.
+ */
+	.macro	dcache_line_size, reg, tmp
+	mrs	\tmp, ctr_el0			/* read CTR */
+	ubfm	\tmp, \tmp, #16, #19		/* cache line size encoding */
+	mov	\reg, #4			/* bytes per word */
+	lsl	\reg, \reg, \tmp		/* actual cache line size */
+	.endm
+
+/*
+ * icache_line_size - get the minimum I-cache line size from the CTR register.
+ */
+	.macro	icache_line_size, reg, tmp
+	mrs	\tmp, ctr_el0			/* read CTR */
+	and	\tmp, \tmp, #0xf		/* cache line size encoding */
+	mov	\reg, #4			/* bytes per word */
+	lsl	\reg, \reg, \tmp		/* actual cache line size */
+	.endm
+
+/*
+ * tcr_set_idmap_t0sz - update TCR.T0SZ so that we can load the ID map
+ */
+	.macro	tcr_set_idmap_t0sz, valreg, tmpreg
+#ifndef CONFIG_ARM64_VA_BITS_48
+	ldr_l	\tmpreg, idmap_t0sz
+	bfi	\valreg, \tmpreg, #TCR_T0SZ_OFFSET, #TCR_TxSZ_WIDTH
+#endif
+	.endm
+
 #endif	/* __ASM_ASSEMBLER_H */
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index cc7435c..b8c7770 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -31,7 +31,6 @@
 #include <asm/cputype.h>
 #include <asm/memory.h>
 #include <asm/thread_info.h>
-#include <asm/pgtable-hwdef.h>
 #include <asm/pgtable.h>
 #include <asm/page.h>
 #include <asm/virt.h>
diff --git a/arch/arm64/kvm/hyp-init.S b/arch/arm64/kvm/hyp-init.S
index 178ba22..2e67a48 100644
--- a/arch/arm64/kvm/hyp-init.S
+++ b/arch/arm64/kvm/hyp-init.S
@@ -20,7 +20,6 @@
 #include <asm/assembler.h>
 #include <asm/kvm_arm.h>
 #include <asm/kvm_mmu.h>
-#include <asm/pgtable-hwdef.h>
 
 	.text
 	.pushsection	.hyp.idmap.text, "ax"
diff --git a/arch/arm64/mm/cache.S b/arch/arm64/mm/cache.S
index 2560e1e..2d7a67c 100644
--- a/arch/arm64/mm/cache.S
+++ b/arch/arm64/mm/cache.S
@@ -24,8 +24,6 @@
 #include <asm/cpufeature.h>
 #include <asm/alternative-asm.h>
 
-#include "proc-macros.S"
-
 /*
  *	__flush_dcache_all()
  *
diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S
index 262c8ec..93c3f4d 100644
--- a/arch/arm64/mm/proc.S
+++ b/arch/arm64/mm/proc.S
@@ -23,11 +23,8 @@
 #include <asm/assembler.h>
 #include <asm/asm-offsets.h>
 #include <asm/hwcap.h>
-#include <asm/pgtable-hwdef.h>
 #include <asm/pgtable.h>
 
-#include "proc-macros.S"
-
 #ifdef CONFIG_ARM64_64K_PAGES
 #define TCR_TG_FLAGS	TCR_TG0_64K | TCR_TG1_64K
 #else
-- 
2.7.4