From: Yisheng Xie Date: Fri, 9 Jun 2017 14:28:18 +0000 (+0100) Subject: ARM: 8681/1: make VMSPLIT_3G_OPT depends on !ARM_LPAE X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bbeedfda8eee0b17ea16e4e157c596095458676a;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git ARM: 8681/1: make VMSPLIT_3G_OPT depends on !ARM_LPAE When both enable CONFIG_ARM_LPAE=y and CONFIG_VMSPLIT_3G_OPT=y, which means use PAGE_OFFSET=0xB0000000 with ARM_LPAE, the kernel will boot fail and stop after uncompressed: Starting kernel ... Uart base = 0x20001000 watchdog reg = 0x20013000 dtb addr = 0x80840308 Uncompressing Linux... done, booting the kernel. For ARM_LPAE only support 3:1, 2:2, 1:3 split of TTBR1, which mention in: http://elinux.org/images/6/6a/Elce11_marinas.pdf - p16 So we should make VMSPLIT_3G_OPT depends on !ARM_LPAE to avoid trigger this bug. Acked-by: Nicolas Pitre Signed-off-by: Yisheng Xie Signed-off-by: Russell King --- diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 4c1a35f15838..c0fcab6a5504 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1416,6 +1416,7 @@ choice config VMSPLIT_3G bool "3G/1G user/kernel split" config VMSPLIT_3G_OPT + depends on !ARM_LPAE bool "3G/1G user/kernel split (for full 1G low memory)" config VMSPLIT_2G bool "2G/2G user/kernel split"