Commit abcc82b1 authored Apr 27, 2015 by James Hogan Committed by Ralf Baechle Jun 21, 2015

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>

parent 8fe4908b

arch/mips/Kconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -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.

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