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ARM: Default to using optimized memset and memcpy routines

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We have long had available optimized versions of the memset and memcpy
functions that are borrowed from the Linux kernel.  We should use these
in normal conditions as the speed wins in many workflows outweigh the
relatively minor size increase.  However, we have a number of places
where we're simply too close to size limits in SPL and must be able to
make the size vs performance trade-off in those cases.

Cc: Philippe Reynes <tremyfr@yahoo.fr>
Cc: Eric Jarrige <eric.jarrige@armadeus.org>
Cc: Heiko Schocher <hs@denx.de>
Cc: Magnus Lilja <lilja.magnus@gmail.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Chander Kashyap <k.chander@samsung.com>
Cc: Akshay Saraswat <akshay.s@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Tom Rini 2017-01-12 13:16:02 -05:00
parent a4a35934c7
commit 40d5534cff
15 changed files with 48 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
arch/arm/Kconfig
View File

@ -128,7 +128,16 @@ config ENABLE_ARM_SOC_BOOT0_HOOK
config USE_ARCH_MEMCPY
bool "Use an assembly optimized implementation of memcpy"
default y if CPU_V7
default y
depends on !ARM64
help
Enable the generation of an optimized version of memcpy.
Such implementation may be faster under some conditions
but may increase the binary size.
config SPL_USE_ARCH_MEMCPY
bool "Use an assembly optimized implementation of memcpy"
default y if USE_ARCH_MEMCPY
depends on !ARM64
help
Enable the generation of an optimized version of memcpy.
@ -137,7 +146,16 @@ config USE_ARCH_MEMCPY
config USE_ARCH_MEMSET
bool "Use an assembly optimized implementation of memset"
default y if CPU_V7
default y
depends on !ARM64
help
Enable the generation of an optimized version of memset.
Such implementation may be faster under some conditions
but may increase the binary size.
config SPL_USE_ARCH_MEMSET
bool "Use an assembly optimized implementation of memset"
default y if USE_ARCH_MEMSET
depends on !ARM64
help
Enable the generation of an optimized version of memset.

4
arch/arm/lib/Makefile
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@ -30,12 +30,12 @@ obj-$(CONFIG_CMD_BOOTI) += bootm.o
obj-$(CONFIG_CMD_BOOTM) += bootm.o
obj-$(CONFIG_CMD_BOOTZ) += bootm.o zimage.o
obj-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
obj-$(CONFIG_USE_ARCH_MEMSET) += memset.o
obj-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
else
obj-$(CONFIG_SPL_FRAMEWORK) += spl.o
obj-$(CONFIG_SPL_FRAMEWORK) += zimage.o
endif
obj-$(CONFIG_$(SPL_)USE_ARCH_MEMSET) += memset.o
obj-$(CONFIG_$(SPL_)USE_ARCH_MEMCPY) += memcpy.o
obj-$(CONFIG_SEMIHOSTING) += semihosting.o
obj-y += sections.o

2
common/init/board_init.c
View File

@ -17,7 +17,7 @@ DECLARE_GLOBAL_DATA_PTR;
*/
#if !defined(CONFIG_SPL_BUILD) || \
(defined(CONFIG_SPL_LIBGENERIC_SUPPORT) && \
!defined(CONFIG_USE_ARCH_MEMSET))
!defined(CONFIG_SPL_USE_ARCH_MEMCPY))
#define _USE_MEMCPY
#endif

1
configs/apf27_defconfig
View File

@ -1,4 +1,5 @@
CONFIG_ARM=y
# CONFIG_SPL_USE_ARCH_MEMCPY is not set
CONFIG_TARGET_APF27=y
CONFIG_SPL_NAND_SUPPORT=y
CONFIG_SPL_SERIAL_SUPPORT=y

2
configs/axm_defconfig
View File

@ -1,4 +1,6 @@
CONFIG_ARM=y
# CONFIG_SPL_USE_ARCH_MEMCPY is not set
# CONFIG_SPL_USE_ARCH_MEMSET is not set
CONFIG_ARCH_AT91=y
CONFIG_TARGET_TAURUS=y
CONFIG_SPL_GPIO_SUPPORT=y

2
configs/corvus_defconfig
View File

@ -1,4 +1,6 @@
CONFIG_ARM=y
# CONFIG_SPL_USE_ARCH_MEMCPY is not set
# CONFIG_SPL_USE_ARCH_MEMSET is not set
CONFIG_ARCH_AT91=y
CONFIG_TARGET_CORVUS=y
CONFIG_SPL_GPIO_SUPPORT=y

2
configs/mx31pdk_defconfig
View File

@ -1,4 +1,6 @@
CONFIG_ARM=y
# CONFIG_SPL_USE_ARCH_MEMCPY is not set
# CONFIG_SPL_USE_ARCH_MEMSET is not set
CONFIG_TARGET_MX31PDK=y
CONFIG_SPL_LIBGENERIC_SUPPORT=y
CONFIG_SPL_NAND_SUPPORT=y

2
configs/omap4_sdp4430_defconfig
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@ -1,4 +1,6 @@
CONFIG_ARM=y
# CONFIG_SPL_USE_ARCH_MEMCPY is not set
# CONFIG_SPL_USE_ARCH_MEMSET is not set
CONFIG_OMAP44XX=y
# CONFIG_SPL_I2C_SUPPORT is not set
# CONFIG_SPL_NAND_SUPPORT is not set

2
configs/smartweb_defconfig
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@ -1,4 +1,6 @@
CONFIG_ARM=y
# CONFIG_SPL_USE_ARCH_MEMCPY is not set
# CONFIG_SPL_USE_ARCH_MEMSET is not set
CONFIG_ARCH_AT91=y
CONFIG_TARGET_SMARTWEB=y
CONFIG_SPL_GPIO_SUPPORT=y

2
configs/smdk5250_defconfig
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@ -1,4 +1,6 @@
CONFIG_ARM=y
# CONFIG_SPL_USE_ARCH_MEMCPY is not set
# CONFIG_SPL_USE_ARCH_MEMSET is not set
CONFIG_ARCH_EXYNOS=y
CONFIG_ARCH_EXYNOS5=y
CONFIG_TARGET_SMDK5250=y

2
configs/snow_defconfig
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@ -1,4 +1,6 @@
CONFIG_ARM=y
# CONFIG_SPL_USE_ARCH_MEMCPY is not set
# CONFIG_SPL_USE_ARCH_MEMSET is not set
CONFIG_ARCH_EXYNOS=y
CONFIG_ARCH_EXYNOS5=y
CONFIG_TARGET_SNOW=y

2
configs/spring_defconfig
View File

@ -1,4 +1,6 @@
CONFIG_ARM=y
# CONFIG_SPL_USE_ARCH_MEMCPY is not set
# CONFIG_SPL_USE_ARCH_MEMSET is not set
CONFIG_ARCH_EXYNOS=y
CONFIG_ARCH_EXYNOS5=y
CONFIG_TARGET_SPRING=y

2
configs/taurus_defconfig
View File

@ -1,4 +1,6 @@
CONFIG_ARM=y
# CONFIG_SPL_USE_ARCH_MEMCPY is not set
# CONFIG_SPL_USE_ARCH_MEMSET is not set
CONFIG_ARCH_AT91=y
CONFIG_TARGET_TAURUS=y
CONFIG_SPL_GPIO_SUPPORT=y

2
configs/x600_defconfig
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@ -1,4 +1,6 @@
CONFIG_ARM=y
# CONFIG_SPL_USE_ARCH_MEMCPY is not set
# CONFIG_SPL_USE_ARCH_MEMSET is not set
CONFIG_TARGET_X600=y
CONFIG_SPL_LIBCOMMON_SUPPORT=y
CONFIG_SPL_LIBGENERIC_SUPPORT=y

5
examples/api/Makefile
View File

@ -35,6 +35,9 @@ EXT_COBJ-y += lib/string.o
EXT_COBJ-y += lib/time.o
EXT_COBJ-y += lib/vsprintf.o
EXT_SOBJ-$(CONFIG_PPC) += arch/powerpc/lib/ppcstring.o
ifeq ($(ARCH),arm)
EXT_SOBJ-$(CONFIG_USE_ARCH_MEMSET) += arch/arm/lib/memset.o
endif
# Create a list of object files to be compiled
OBJS := $(OBJ-y) $(notdir $(EXT_COBJ-y) $(EXT_SOBJ-y))
@ -60,5 +63,5 @@ $(addprefix $(obj)/,$(notdir $(EXT_COBJ-y))): $(obj)/%.o: lib/%.c FORCE
$(call if_changed_rule,cc_o_c)
# Rule to build architecture-specific library assembly files
$(addprefix $(obj)/,$(notdir $(EXT_SOBJ-y))): $(obj)/%.o: arch/powerpc/lib/%.S FORCE
$(addprefix $(obj)/,$(notdir $(EXT_SOBJ-y))): $(obj)/%.o: arch/$(ARCH)/lib/%.S FORCE
$(call if_changed_dep,as_o_S)