kernel: drop mips highmem offset start overrides
authorFelix Fietkau <nbd@nbd.name>
Mon, 24 Jul 2023 12:43:03 +0000 (14:43 +0200)
committerFelix Fietkau <nbd@nbd.name>
Mon, 24 Jul 2023 12:45:29 +0000 (14:45 +0200)
commita110de8152df46a1e2adf7010ba75fb3b1236cd8
treec9069df548d151daf86c1d2d78d24cf420f17422
parentcd2b74e01e8d5f5b80b82db1cb204c13ed99dd58
kernel: drop mips highmem offset start overrides

The maximum offset that can be supported is 0x20000000
Do not override it to to something bigger than that on MT7621, as that could
cause issues based on the fixed memory mappings. This makes the last 64 MB
RAM unusable on MT7621 devices with 512 MB but avoids incurring a heavy
performance hit

Fixes: cd2b74e01e8d ("ramips: mt7621: disable highmem support and remove highmem offset patch")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
target/linux/generic/pending-5.15/307-mips_highmem_offset.patch [deleted file]
target/linux/generic/pending-6.1/307-mips_highmem_offset.patch [deleted file]
target/linux/ramips/patches-5.15/120-highmem-start-offset.patch [deleted file]