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xtensa: remove ZONE_DMA

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ZONE_DMA is intended for magic < 32-bit pools (usually ISA DMA), which
isn't required on xtensa.  Move all the non-highmem memory into
ZONE_NORMAL instead to match other architectures.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Christoph Hellwig 2018-10-14 20:13:04 +02:00 committed by Max Filippov
parent 35a7f35ad1
commit fe278d1a95
2 changed files with 1 additions and 4 deletions
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3
arch/xtensa/Kconfig
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@ -1,7 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
config ZONE_DMA
def_bool y
config XTENSA
def_bool y
select ARCH_HAS_SG_CHAIN

2
arch/xtensa/mm/init.c
View file

@ -71,7 +71,7 @@ void __init zones_init(void)
{
/* All pages are DMA-able, so we put them all in the DMA zone. */
unsigned long zones_size[MAX_NR_ZONES] = {
[ZONE_DMA] = max_low_pfn - ARCH_PFN_OFFSET,
[ZONE_NORMAL] = max_low_pfn - ARCH_PFN_OFFSET,
#ifdef CONFIG_HIGHMEM
[ZONE_HIGHMEM] = max_pfn - max_low_pfn,
#endif