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Commit 166fa60a authored Sep 04, 2018 by Swathi Sridhar

defconfig: kona: Disable ZONE_DMA32



The disabling of the ZONE_DMA32 is done to see if zone DMA
could be removed with the expectation that the disabling
of the DMA zone would facilitate faster physical memory
allocation.The removal of the dma zone opens up the
possibility to save memory by merging the lower reserved
memory with the normal zone. This config option can be
enabled, if any of the clients are not be able to
support due to hardware constraints.

Change-Id: Ifc0840b81922a7c375d3a68c717a51a8ec948bdc
Signed-off-by: Swathi Sridhar <swatsrid@codeaurora.org>

parent 72969e94

arch/arm64/Kconfig

+4 −1

Original line number	Diff line number	Diff line
		@@ -251,7 +251,10 @@ config GENERIC_CALIBRATE_DELAY
		def_bool y

		config ZONE_DMA32
		def_bool y
		bool "Enable or Disable Zone DMA"
		default y
		help
		This option is used to enable or disable the DMA zone.

		config HAVE_GENERIC_GUP
		def_bool y

arch/arm64/configs/vendor/kona-perf_defconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -37,6 +37,7 @@ CONFIG_EMBEDDED=y
		CONFIG_SLAB_FREELIST_RANDOM=y
		CONFIG_SLAB_FREELIST_HARDENED=y
		CONFIG_PROFILING=y
		# CONFIG_ZONE_DMA32 is not set
		CONFIG_ARCH_QCOM=y
		CONFIG_ARCH_KONA=y
		CONFIG_PCI=y

arch/arm64/configs/vendor/kona_defconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -36,6 +36,7 @@ CONFIG_EMBEDDED=y
		CONFIG_SLAB_FREELIST_RANDOM=y
		CONFIG_SLAB_FREELIST_HARDENED=y
		CONFIG_PROFILING=y
		# CONFIG_ZONE_DMA32 is not set
		CONFIG_ARCH_QCOM=y
		CONFIG_ARCH_KONA=y
		CONFIG_PCI=y