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kernel: 5.10: allocate last level PTEs in high memory

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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 <rsalvaterra@gmail.com>
This commit is contained in:
Rui Salvaterra 2022-01-03 13:36:36 +00:00
parent 0989b7ad3a
commit 72d2c54ccb
7 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
target/linux/bcm53xx/config-5.10
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@ -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

2
target/linux/ipq40xx/config-5.10
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@ -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

2
target/linux/ipq806x/config-5.10
View File

@ -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

2
target/linux/mediatek/mt7623/config-5.10
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@ -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

2
target/linux/mvebu/config-5.10
View File

@ -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

2
target/linux/x86/config-5.10
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@ -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

2
target/linux/zynq/config-5.10
View File

@ -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