Virtual SMP support for the 34K.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
git-mirror · Oct 29, 2005 · 340ee4b · 340ee4b
1 parent d03d0a5
commit 340ee4b
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Showing 9 changed files with 450 additions and 15 deletions.
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
@@ -1344,13 +1344,23 @@ config CPU_HAS_PREFETCH
 config MIPS_MT
 	bool "Enable MIPS MT"
 
+choice
+	prompt "MIPS MT options"
+	depends on MIPS_MT
+
+config MIPS_MT_SMP
+	bool "Use 1 TC on each available VPE for SMP"
+	select SMP
+
 config MIPS_VPE_LOADER
 	bool "VPE loader support."
 	depends on MIPS_MT
 	help
 	  Includes a loader for loading an elf relocatable object
 	  onto another VPE and running it.
 
+endchoice
+
 config MIPS_VPE_LOADER_TOM
 	bool "Load VPE program into memory hidden from linux"
 	depends on MIPS_VPE_LOADER
@@ -1496,7 +1506,7 @@ source "mm/Kconfig"
 
 config SMP
 	bool "Multi-Processing support"
-	depends on CPU_RM9000 || (SIBYTE_SB1250 && !SIBYTE_STANDALONE) || SGI_IP27
+	depends on CPU_RM9000 || (SIBYTE_SB1250 && !SIBYTE_STANDALONE) || SGI_IP27 || MIPS_MT_SMP
 	---help---
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If

diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
@@ -34,6 +34,8 @@ obj-$(CONFIG_CPU_R6000)		+= r6000_fpu.o r4k_switch.o
 
 obj-$(CONFIG_SMP)		+= smp.o
 
+obj-$(CONFIG_MIPS_MT_SMP)	+= smp_mt.o
+
 obj-$(CONFIG_MIPS_VPE_LOADER)	+= vpe.o
 obj-$(CONFIG_MIPS_VPE_APSP_API)	+= rtlx.o
 

diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
@@ -323,6 +323,7 @@ NESTED(nmi_handler, PT_SIZE, sp)
 	BUILD_HANDLER mdmx mdmx sti silent		/* #22 */
 	BUILD_HANDLER watch watch sti verbose		/* #23 */
 	BUILD_HANDLER mcheck mcheck cli verbose		/* #24 */
+	BUILD_HANDLER mt mt sti verbose			/* #25 */
 	BUILD_HANDLER dsp dsp sti silent		/* #26 */
 	BUILD_HANDLER reserved reserved sti verbose	/* others */