From 72d2c54ccbfec20503b2ae9ff3ea66cfcf3c8703 Mon Sep 17 00:00:00 2001 From: Rui Salvaterra Date: Mon, 3 Jan 2022 13:36:36 +0000 Subject: [PATCH] kernel: 5.10: allocate last level PTEs in high memory Enable support for allocating user space page table entries in high memory [1], for the targets which support this feature. This saves precious low memory (permanently mapped, the only type of memory directly accessible by the kernel). [1] https://www.kernel.org/doc/html/latest/vm/highmem.html Signed-off-by: Rui Salvaterra --- target/linux/bcm53xx/config-5.10 | 2 +- target/linux/ipq40xx/config-5.10 | 2 +- target/linux/ipq806x/config-5.10 | 2 +- target/linux/mediatek/mt7623/config-5.10 | 2 +- target/linux/mvebu/config-5.10 | 2 +- target/linux/x86/config-5.10 | 2 +- target/linux/zynq/config-5.10 | 2 +- 7 files changed, 7 insertions(+), 7 deletions(-) diff --git a/target/linux/bcm53xx/config-5.10 b/target/linux/bcm53xx/config-5.10 index 3dd03591132a..604964189897 100644 --- a/target/linux/bcm53xx/config-5.10 +++ b/target/linux/bcm53xx/config-5.10 @@ -159,7 +159,7 @@ CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT_MAP=y CONFIG_HAVE_SMP=y CONFIG_HIGHMEM=y -# CONFIG_HIGHPTE is not set +CONFIG_HIGHPTE=y CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_BCM2835=y CONFIG_HZ_FIXED=0 diff --git a/target/linux/ipq40xx/config-5.10 b/target/linux/ipq40xx/config-5.10 index 3ebc7b3e1e94..403ed6e6e4dc 100644 --- a/target/linux/ipq40xx/config-5.10 +++ b/target/linux/ipq40xx/config-5.10 @@ -189,7 +189,7 @@ CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT_MAP=y CONFIG_HAVE_SMP=y CONFIG_HIGHMEM=y -# CONFIG_HIGHPTE is not set +CONFIG_HIGHPTE=y CONFIG_HWSPINLOCK=y CONFIG_HWSPINLOCK_QCOM=y CONFIG_HW_RANDOM=y diff --git a/target/linux/ipq806x/config-5.10 b/target/linux/ipq806x/config-5.10 index 827447d8ebc3..d22ac6cd0485 100644 --- a/target/linux/ipq806x/config-5.10 +++ b/target/linux/ipq806x/config-5.10 @@ -176,7 +176,7 @@ CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT_MAP=y CONFIG_HAVE_SMP=y CONFIG_HIGHMEM=y -# CONFIG_HIGHPTE is not set +CONFIG_HIGHPTE=y CONFIG_HWMON=y CONFIG_HWSPINLOCK=y CONFIG_HWSPINLOCK_QCOM=y diff --git a/target/linux/mediatek/mt7623/config-5.10 b/target/linux/mediatek/mt7623/config-5.10 index 142ffd7998f5..3d017400a047 100644 --- a/target/linux/mediatek/mt7623/config-5.10 +++ b/target/linux/mediatek/mt7623/config-5.10 @@ -265,7 +265,7 @@ CONFIG_HAVE_SMP=y CONFIG_HDMI=y CONFIG_HID=y CONFIG_HIGHMEM=y -# CONFIG_HIGHPTE is not set +CONFIG_HIGHPTE=y CONFIG_HOTPLUG_CPU=y CONFIG_HW_CONSOLE=y CONFIG_HWMON=y diff --git a/target/linux/mvebu/config-5.10 b/target/linux/mvebu/config-5.10 index ee9331252c09..0bce22daee0a 100644 --- a/target/linux/mvebu/config-5.10 +++ b/target/linux/mvebu/config-5.10 @@ -198,7 +198,7 @@ CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT_MAP=y CONFIG_HAVE_SMP=y CONFIG_HIGHMEM=y -# CONFIG_HIGHPTE is not set +CONFIG_HIGHPTE=y CONFIG_HOTPLUG_CPU=y CONFIG_HWBM=y CONFIG_HWMON=y diff --git a/target/linux/x86/config-5.10 b/target/linux/x86/config-5.10 index 2d07f5a905f7..ec27bb7945fe 100644 --- a/target/linux/x86/config-5.10 +++ b/target/linux/x86/config-5.10 @@ -146,7 +146,7 @@ CONFIG_HID=y CONFIG_HIGHMEM=y CONFIG_HIGHMEM4G=y # CONFIG_HIGHMEM64G is not set -# CONFIG_HIGHPTE is not set +CONFIG_HIGHPTE=y CONFIG_HPET_EMULATE_RTC=y CONFIG_HPET_TIMER=y # CONFIG_HP_WATCHDOG is not set diff --git a/target/linux/zynq/config-5.10 b/target/linux/zynq/config-5.10 index 35b7f03a9b57..7e960d4ad047 100644 --- a/target/linux/zynq/config-5.10 +++ b/target/linux/zynq/config-5.10 @@ -225,7 +225,7 @@ CONFIG_HID=y CONFIG_HID_GENERIC=y CONFIG_HID_MICROSOFT=y CONFIG_HIGHMEM=y -# CONFIG_HIGHPTE is not set +CONFIG_HIGHPTE=y CONFIG_HOTPLUG_CPU=y CONFIG_HWMON=y CONFIG_HW_CONSOLE=y -- 2.30.2