From: Christoph Hellwig <hch@lst.de>
To: chris@zankel.net, jcmvbkbc@gmail.com
Cc: linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org
Subject: [PATCH] xtensa: remove ZONE_DMA
Date: Sun, 14 Oct 2018 20:13:04 +0200 [thread overview]
Message-ID: <20181014181304.22250-1-hch@lst.de> (raw)
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>
---
arch/xtensa/Kconfig | 3 ---
arch/xtensa/mm/init.c | 2 +-
2 files changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 516694937b7a..9a7c654a7654 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -1,7 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
-config ZONE_DMA
- def_bool y
-
config XTENSA
def_bool y
select ARCH_HAS_SYNC_DMA_FOR_CPU
diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index 34aead7dcb48..b385e6b73065 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -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
--
2.19.1
next reply other threads:[~2018-10-14 18:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-14 18:13 Christoph Hellwig [this message]
2018-10-15 19:57 ` [PATCH] xtensa: remove ZONE_DMA Max Filippov
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