Vladimir Isaev cb3e286f22 ARC: mm: Use max_high_pfn as a HIGHMEM zone border ... commit 1d5e4640e5df15252398c1b621f6bd432f2d7f17 upstream. Commit 4af22ded0e ("arc: fix memory initialization for systems with two memory banks") fixed highmem, but for the PAE case it causes bug messages: | BUG: Bad page state in process swapper pfn:80000 | page:(ptrval) refcount:0 mapcount:1 mapping:00000000 index:0x0 pfn:0x80000 flags: 0x0() | raw: 00000000 00000100 00000122 00000000 00000000 00000000 00000000 00000000 | raw: 00000000 | page dumped because: nonzero mapcount | Modules linked in: | CPU: 0 PID: 0 Comm: swapper Not tainted 5.12.0-rc5-00003-g1e43c377a79f #1 This is because the fix expects highmem to be always less than lowmem and uses min_low_pfn as an upper zone border for highmem. max_high_pfn should be ok for both highmem and highmem+PAE cases. Fixes: 4af22ded0e ("arc: fix memory initialization for systems with two memory banks") Signed-off-by: Vladimir Isaev <isaev@synopsys.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: stable@vger.kernel.org #5.8 onwards Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-05-19 10:13:10 +02:00
..
Makefile	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
cache.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
dma.c	dma-mapping: merge <linux/dma-noncoherent.h> into <linux/dma-map-ops.h>	2020-10-06 07:07:06 +02:00
extable.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
fault.c	mm/arc: use general page fault accounting	2020-08-12 10:58:03 -07:00
highmem.c	mm: pgtable: add shortcuts for accessing kernel PMD and PTE	2020-06-09 09:39:13 -07:00
init.c	ARC: mm: Use max_high_pfn as a HIGHMEM zone border	2021-05-19 10:13:10 +02:00
ioremap.c	ARC: mm: PAE: use 40-bit physical page mask	2021-05-19 10:13:10 +02:00
mmap.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
tlb.c	ARC: mm: PAE: use 40-bit physical page mask	2021-05-19 10:13:10 +02:00
tlbex.S	ARC: [plat-eznps]: Drop support for EZChip NPS platform	2020-10-05 21:02:29 -07:00