linux-kernel - [PATCH] LoongArch: Add ARCH_HAS_DEBUG_VM

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Date: Tue,  2 Jul 2024 23:14:46 +0800
From: Huacai Chen <chenhuacai@...ngson.cn>
To: Huacai Chen <chenhuacai@...nel.org>
Cc: loongarch@...ts.linux.dev,
	Xuefeng Li <lixuefeng@...ngson.cn>,
	Guo Ren <guoren@...nel.org>,
	Xuerui Wang <kernel@...0n.name>,
	Jiaxun Yang <jiaxun.yang@...goat.com>,
	linux-kernel@...r.kernel.org,
	loongson-kernel@...ts.loongnix.cn,
	Huacai Chen <chenhuacai@...ngson.cn>
Subject: [PATCH] LoongArch: Add ARCH_HAS_DEBUG_VM_PGTABLE support

Add ARCH_HAS_DEBUG_VM_PGTABLE selection in Kconfig, in order to make
corresponding vm debug features usable on LoongArch. Also update the
corresponding arch-support.txt document.

Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
---
 Documentation/features/debug/debug-vm-pgtable/arch-support.txt | 2 +-
 arch/loongarch/Kconfig                                         | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
index bbf029f095cb..156687a7436d 100644
--- a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
+++ b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
@@ -12,7 +12,7 @@
     |       arm64: |  ok  |
     |        csky: | TODO |
     |     hexagon: | TODO |
-    |   loongarch: | TODO |
+    |   loongarch: |  ok  |
     |        m68k: | TODO |
     |  microblaze: | TODO |
     |        mips: | TODO |
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index d8ca8b1b01f3..e346b5b0a5ca 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -16,6 +16,7 @@ config LOONGARCH
 	select ARCH_HAS_ACPI_TABLE_UPGRADE	if ACPI
 	select ARCH_HAS_CPU_FINALIZE_INIT
 	select ARCH_HAS_CURRENT_STACK_POINTER
+	select ARCH_HAS_DEBUG_VM_PGTABLE
 	select ARCH_HAS_FAST_MULTIPLIER
 	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_KCOV
-- 
2.43.0