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authorRalf Baechle <ralf@linux-mips.org>2007-11-16 14:54:46 +0000
committerRalf Baechle <ralf@linux-mips.org>2007-12-09 04:51:10 +0000
commitba0f00b9fcb02b10cc9929fec660f86d1af6a41a (patch)
treec1924fdf5cedb3d8c8d1cbe911290d2c1279d801
parent5ef1b9a0f6cbb1269fc8b8d7704d146f22bf7aa6 (diff)
downloadlinux-ba0f00b9fcb02b10cc9929fec660f86d1af6a41a.tar.bz2
[MIPS] Malta: Enable tickless and highres timers.
Most Malta use an FPGA CPU card which rarely is good for more than 40MHz. So the performance penalta of the regular timer interrupt, especially for the VSMP kernel model is significant, even at a mere 100Hz. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
-rw-r--r--arch/mips/configs/malta_defconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig
index fbd2d802fdfd..4b7e43c9f69a 100644
--- a/arch/mips/configs/malta_defconfig
+++ b/arch/mips/configs/malta_defconfig
@@ -49,10 +49,13 @@ CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
# CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ is not set
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
+CONFIG_CEVT_R4K=y
CONFIG_DMA_NONCOHERENT=y
CONFIG_DMA_NEED_PCI_MAP_STATE=y
CONFIG_EARLY_PRINTK=y
@@ -76,6 +79,10 @@ CONFIG_MIPS_L1_CACHE_SHIFT=5
#
# CPU selection
#
+CONFIG_TICK_ONESHOT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
# CONFIG_CPU_LOONGSON2 is not set
# CONFIG_CPU_MIPS32_R1 is not set
CONFIG_CPU_MIPS32_R2=y
@@ -253,6 +260,7 @@ CONFIG_HW_HAS_PCI=y
CONFIG_PCI=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_MMU=y
+CONFIG_I8253=y
#
# PCCARD (PCMCIA/CardBus) support