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authorJames Hogan <james.hogan@imgtec.com>2015-04-27 16:07:19 +0200
committerRalf Baechle <ralf@linux-mips.org>2015-06-21 21:53:57 +0200
commitabcc82b19fa9b4f41e02f28715005851b580163d (patch)
tree643b594e275d8b54bc2b472299a292f374e26bca /arch/mips
parentMIPS: tlbex: Avoid unnecessary _PAGE_PRESENT shifts (diff)
downloadlinux-abcc82b19fa9b4f41e02f28715005851b580163d.tar.xz
linux-abcc82b19fa9b4f41e02f28715005851b580163d.zip
MIPS: Malta: Select 32bit DMA zone for 64-bit kernels
Enable the 32-bit DMA zone for 64-bit Malta kernels so that devices with 32-bit coherent DMA masks aren't constrained to the low 16MB DMA zone, which can easily be exhausted when there is lots of static kernel data due to lock and RCU debugging. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9890/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2424ddc43a77..0ee59e8cdb57 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -440,6 +440,7 @@ config MIPS_MALTA
select SYS_SUPPORTS_MULTITHREADING
select SYS_SUPPORTS_SMARTMIPS
select SYS_SUPPORTS_ZBOOT
+ select ZONE_DMA32 if 64BIT
help
This enables support for the MIPS Technologies Malta evaluation
board.