[MIPS] IRQ Affinity Support for SMTC on Malta Platform

[powerpc.git] / arch / mips / Kconfig

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 6595928..b09eee2 100644 (file)
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -80,10 +80,10 @@ config MACH_DECSTATION
          If you have one of the following DECstation Models you definitely
          want to choose R4xx0 for the CPU Type:
 
-               DECstation 5000/50
-               DECstation 5000/150
-               DECstation 5000/260
-               DECsystem 5900/260
+               DECstation 5000/50
+               DECstation 5000/150
+               DECstation 5000/260
+               DECsystem 5900/260
 
          otherwise choose R3000.
 
@@ -125,6 +125,7 @@ config LEMOTE_FULONG
        select SYS_SUPPORTS_HIGHMEM
        select SYS_HAS_EARLY_PRINTK
        select GENERIC_HARDIRQS_NO__DO_IRQ
+       select GENERIC_ISA_DMA_SUPPORT_BROKEN
        select CPU_HAS_WB
        help
          Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
@@ -692,10 +693,6 @@ config EARLY_PRINTK
 config SYS_HAS_EARLY_PRINTK
        bool
 
-config GENERIC_ISA_DMA
-       bool
-       select ZONE_DMA
-
 config HOTPLUG_CPU
        bool
        default n
@@ -715,9 +712,13 @@ config MIPS_DISABLE_OBSOLETE_IDE
 config NO_IOPORT
        def_bool n
 
+config GENERIC_ISA_DMA
+       bool
+       select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
+
 config GENERIC_ISA_DMA_SUPPORT_BROKEN
        bool
-       select ZONE_DMA
+       select GENERIC_ISA_DMA
 
 config GENERIC_GPIO
        bool
@@ -817,20 +818,6 @@ config EMMA2RH
 config SERIAL_RM9000
        bool
 
-#
-# Unfortunately not all GT64120 systems run the chip at the same clock.
-# As the user for the clock rate and try to minimize the available options.
-#
-choice
-       prompt "Galileo Chip Clock"
-       depends on MOMENCO_OCELOT
-       default SYSCLK_100 if MOMENCO_OCELOT
-
-config SYSCLK_100
-       bool "100" if MOMENCO_OCELOT
-
-endchoice
-
 config ARC32
        bool
 
@@ -1391,6 +1378,19 @@ config MIPS_MT_SMTC_IM_BACKSTOP
          impact on interrupt service overhead. Disable it only if you know
          what you are doing.
 
+config MIPS_MT_SMTC_IRQAFF
+       bool "Support IRQ affinity API"
+       depends on MIPS_MT_SMTC
+       default n
+       help
+         Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
+         for SMTC Linux kernel. Requires platform support, of which
+         an example can be found in the MIPS kernel i8259 and Malta
+         platform code.  It is recommended that MIPS_MT_SMTC_INSTANT_REPLAY
+         be enabled if MIPS_MT_SMTC_IRQAFF is used. Adds overhead to
+         interrupt dispatch, and should be used only if you know what
+         you are doing.
+
 config MIPS_VPE_LOADER_TOM
        bool "Load VPE program into memory hidden from linux"
        depends on MIPS_VPE_LOADER