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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-02-16 11:08:09 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-02-16 11:08:09 +0000 |
| commit | 7bbb79403163e047c6e333ff169db34e3c969e65 (patch) | |
| tree | 423e32c02baa1d61085c67865d11a448db34857a /include/asm-arm/smp.h | |
| parent | ba09cf2bcf9b74d852dcb5ea957ac6af2bc0e057 (diff) | |
| download | linux-7bbb79403163e047c6e333ff169db34e3c969e65.tar.gz linux-7bbb79403163e047c6e333ff169db34e3c969e65.tar.bz2 linux-7bbb79403163e047c6e333ff169db34e3c969e65.zip | |
[ARM] Fix SMP initialisation oops
A change to the SMP initialisation caused the following oops:
CPU1: Booted secondary processor
CPU1: D VIPT write-back cache
CPU1: I cache: 32768 bytes, associativity 4, 32 byte lines, 256 sets
CPU1: D cache: 32768 bytes, associativity 4, 32 byte lines, 256 sets
<7>Calibrating delay loop... 83.14 BogoMIPS (lpj=415744)
<1>Unable to handle kernel NULL pointer dereference at virtual address 0000001c
...
PC is at enqueue_task+0x1c/0x64
LR is at activate_task+0xcc/0xe4
SMP initialisation now requires cpu_possible_map to be initialised in
setup_arch(). Move this from smp_prepare_cpus() to smp_init_cpus()
and call it from our setup_arch() if CONFIG_SMP is enabled.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/smp.h')
| -rw-r--r-- | include/asm-arm/smp.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-arm/smp.h b/include/asm-arm/smp.h index 5a72e50ca9fc..fe45f7f61223 100644 --- a/include/asm-arm/smp.h +++ b/include/asm-arm/smp.h @@ -42,6 +42,11 @@ extern void show_ipi_list(struct seq_file *p); asmlinkage void do_IPI(struct pt_regs *regs); /* + * Setup the SMP cpu_possible_map + */ +extern void smp_init_cpus(void); + +/* * Move global data into per-processor storage. */ extern void smp_store_cpu_info(unsigned int cpuid); |