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[RFC,10/10] arm64/mm: Enable CONFIG_ARM64_PA_BITS_52 on CONFIG_ARM64_[4K|16K]_PAGES

Message ID 1626229291-6569-11-git-send-email-anshuman.khandual@arm.com (mailing list archive)
State New
Headers show
Series arm64/mm: Enable FEAT_LPA2 (52 bits PA support on 4K|16K pages) | expand

Commit Message

Anshuman Khandual July 14, 2021, 2:21 a.m. UTC
All required FEAT_LPA2 components for 52 bit PA range are already in place.
Just enable CONFIG_ARM64_PA_BITS_52 on 4K and 16K pages which would select
CONFIG_ARM64_PA_BITS_52_LPA2 activating 52 bit PA range via FEAT_LPA2.

Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
 arch/arm64/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 658a6fd..bc7e5c6 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -952,9 +952,9 @@  config ARM64_PA_BITS_48
 
 config ARM64_PA_BITS_52
 	bool "52-bit (ARMv8.2)"
-	depends on ARM64_64K_PAGES
 	depends on ARM64_PAN || !ARM64_SW_TTBR0_PAN
 	select ARM64_PA_BITS_52_LPA if ARM64_64K_PAGES
+	select ARM64_PA_BITS_52_LPA2 if (ARM64_4K_PAGES  || ARM64_16K_PAGES)
 	help
 	  Enable support for a 52-bit physical address space, introduced as
 	  part of the ARMv8.2-LPA extension.