From 3b8d5090887843202057ab51c33e97b2abfce491 Mon Sep 17 00:00:00 2001 From: Alexey Brodkin Date: Fri, 5 May 2017 23:20:29 +0300 Subject: [PATCH] Revert "ARCv2: Allow enabling PAE40 w/o HIGHMEM" This reverts commit 32ccada1fa665499dedb504877cfa9a3db833e5d. Now when we have a real hardware platform with PAE40 enabled (here I mean axs103 with firmware v1.2) and 1 Gb of DDR mapped to 0x1_a000_0000-0x1_ffff_ffff we're really targeting memory above 4Gb when PAE40 is enabled. This in its turn requires HIGHMEM to be enabled otherwise user won't see any difference with enabling PAE in kernel configuration as only lowmem will be used anyways. Signed-off-by: Alexey Brodkin Signed-off-by: Vineet Gupta --- arch/arc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 5d7fb3e7cb971..a5459698f0ee3 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -444,6 +444,7 @@ config ARC_HAS_PAE40 bool "Support for the 40-bit Physical Address Extension" default n depends on ISA_ARCV2 + select HIGHMEM help Enable access to physical memory beyond 4G, only supported on ARC cores with 40 bit Physical Addressing support -- 2.39.5