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| author |   Sam Ravnborg <sam@ravnborg.org> | 2011-04-21 16:35:46 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-04-21 16:35:46 -0700 |
| commit | f486b3dc2d048e7309a733f97eb9f9f83d586df2 (patch) | |
| tree | 830347865e3079ad00fa5cb2798aa0ce295ce6bb /arch/sparc/kernel/smp_32.c | |
| parent | sparc32: fix section mismatch warnings in apc, pmc and time_32 (diff) | |
| download | linux-dev-f486b3dc2d048e7309a733f97eb9f9f83d586df2.tar.xz linux-dev-f486b3dc2d048e7309a733f97eb9f9f83d586df2.zip | |
sparc32: fix sparcstation 5 boot
The sparcstation 5 I have available has no MID property for the CPU.
This resulted in a panic when booting a SMP kernel on this box.
The assigned field in cpu_data is never used, so if we fail
to read the MID property then inform user and continue booting.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | arch/sparc/kernel/smp_32.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c index 91c10fb70858..850a1360c0d6 100644 --- a/arch/sparc/kernel/smp_32.c +++ b/arch/sparc/kernel/smp_32.c @@ -53,6 +53,7 @@ cpumask_t smp_commenced_mask = CPU_MASK_NONE; void __cpuinit smp_store_cpu_info(int id) { int cpu_node; + int mid; cpu_data(id).udelay_val = loops_per_jiffy; @@ -60,10 +61,13 @@ void __cpuinit smp_store_cpu_info(int id) cpu_data(id).clock_tick = prom_getintdefault(cpu_node, "clock-frequency", 0); cpu_data(id).prom_node = cpu_node; - cpu_data(id).mid = cpu_get_hwmid(cpu_node); + mid = cpu_get_hwmid(cpu_node); - if (cpu_data(id).mid < 0) - panic("No MID found for CPU%d at node 0x%08d", id, cpu_node); + if (mid < 0) { + printk(KERN_NOTICE "No MID found for CPU%d at node 0x%08d", id, cpu_node); + mid = 0; + } + cpu_data(id).mid = mid; } void __init smp_cpus_done(unsigned int max_cpus) |