diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-04-17 14:35:01 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-04-18 15:38:47 +1000 |
| commit | 945feb174b14e7098cc7ecf0cf4768d35bc52f9c (patch) | |
| tree | 9810b2ff0efe8edbfb1506f65834ea0d553e2848 /arch/powerpc/kernel/setup_64.c | |
| parent | fd3e0bbc6052ca9747a5332b382584ece83aab6d (diff) | |
[POWERPC] irqtrace support for 64-bit powerpc
This adds the low level irq tracing hooks to the powerpc architecture
needed to enable full lockdep functionality.
This is partly based on Johannes Berg's initial version. I removed
the asm trampoline that isn't needed (thus improving performance) and
modified all sorts of bits and pieces, reworking most of the assembly,
etc...
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/setup_64.c')
| -rw-r--r-- | arch/powerpc/kernel/setup_64.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 0205d408d2ed..31ada9fdfc5c 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -33,6 +33,7 @@ #include <linux/serial_8250.h> #include <linux/bootmem.h> #include <linux/pci.h> +#include <linux/lockdep.h> #include <linux/lmb.h> #include <asm/io.h> #include <asm/kdump.h> @@ -178,6 +179,9 @@ void __init early_setup(unsigned long dt_ptr) /* Enable early debugging if any specified (see udbg.h) */ udbg_early_init(); + /* Initialize lockdep early or else spinlocks will blow */ + lockdep_init(); + DBG(" -> early_setup(), dt_ptr: 0x%lx\n", dt_ptr); /* |