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authorVineet Gupta <vgupta@synopsys.com>2016-02-16 07:12:57 +0300
committerVineet Gupta <vgupta@synopsys.com>2016-02-18 15:00:03 +0300
commit0eca6fdb3193410fbe66b6f064431cc394513e82 (patch)
treed8b32d4dff59fb93fc423804d79a66b4d0fd118d /arch/arc
parent18558cae0272f8fd9647e69d3fec1565a7949865 (diff)
downloadlinux-0eca6fdb3193410fbe66b6f064431cc394513e82.tar.xz
ARC: Assume multiplier is always present
It is unlikely that designs running Linux will not have multiplier. Further the current support is not complete as tool don't generate a multilib w/o multiplier. Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/Kconfig8
-rw-r--r--arch/arc/Makefile4
-rw-r--r--arch/arc/kernel/setup.c2
3 files changed, 0 insertions, 14 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 0655495470ad..0f8df0aa2eb8 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -275,14 +275,6 @@ config ARC_DCCM_BASE
default "0xA0000000"
depends on ARC_HAS_DCCM
-config ARC_HAS_HW_MPY
- bool "Use Hardware Multiplier (Normal or Faster XMAC)"
- default y
- help
- Influences how gcc generates code for MPY operations.
- If enabled, MPYxx insns are generated, provided by Standard/XMAC
- Multipler. Otherwise software multipy lib is used
-
choice
prompt "MMU Version"
default ARC_MMU_V3 if ARC_CPU_770
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index aeb19021099e..c8230f3395f2 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -74,10 +74,6 @@ ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
# --build-id w/o "-marclinux". Default arc-elf32-ld is OK
ldflags-$(upto_gcc44) += -marclinux
-ifndef CONFIG_ARC_HAS_HW_MPY
- cflags-y += -mno-mpy
-endif
-
LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
# Modules with short calls might break for calls into builtin-kernel
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index a7edceba5f84..28dba569edd4 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -237,8 +237,6 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
n += scnprintf(buf + n, len - n, "mpy[opt %d] ", opt);
}
- n += scnprintf(buf + n, len - n, "%s",
- IS_USED_CFG(CONFIG_ARC_HAS_HW_MPY));
}
n += scnprintf(buf + n, len - n, "%s%s%s%s%s%s%s%s\n",