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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-12-18 19:13:48 +0000
committerPaul Mackerras <paulus@samba.org>2008-12-21 14:21:16 +1100
commit77520351805cc19ba37394ae33f862ef6d3c2a23 (patch)
tree4bb26bea674835683a2da53cd84efa782425d570 /arch/powerpc/kernel/setup_32.c
parent760ec0e02d8a13d0ed60d99f47879d4aa8ef1910 (diff)
powerpc/mm: Runtime allocation of mmu context maps for nohash CPUs
This makes the MMU context code used for CPUs with no hash table (except 603) dynamically allocate the various maps used to track the state of contexts. Only the main free map and CPU 0 stale map are allocated at boot time. Other CPU maps are allocated when those CPUs are brought up and freed if they are unplugged. This also moves the initialization of the MMU context management slightly later during the boot process, which should be fine as it's really only needed when userland if first started anyways. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/setup_32.c')
-rw-r--r--arch/powerpc/kernel/setup_32.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index b14c2a3e218..d72ef39f2b3 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -38,6 +38,7 @@
#include <asm/time.h>
#include <asm/serial.h>
#include <asm/udbg.h>
+#include <asm/mmu_context.h>
#include "setup.h"
@@ -330,4 +331,8 @@ void __init setup_arch(char **cmdline_p)
if ( ppc_md.progress ) ppc_md.progress("arch: exit", 0x3eab);
paging_init();
+
+ /* Initialize the MMU context management stuff */
+ mmu_context_init();
+
}