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| author | David S. Miller <davem@sunset.davemloft.net> | 2007-07-15 02:02:01 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-07-16 04:05:24 -0700 |
| commit | 9918cc2e3275bf7f3561e4de1d5a3314183e71dc (patch) | |
| tree | f7abebbb06a98df14b6807d9f2fad3099f0ab155 /arch | |
| parent | 39dd992aee381ff5077536853051fc69e58cc4a9 (diff) | |
| download | linux-9918cc2e3275bf7f3561e4de1d5a3314183e71dc.tar.bz2 | |
[SPARC64]: Give more accurate errors in dr_cpu_configure().
When cpu_up() fails, we can discern the most likely cause.
If cpu_present() is false, this means the cpu did not appear
in the MD. If -ENODEV is the error return value, then
the processor did not boot properly into the kernel.
Pass this information back in the dr-cpu response packet.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc64/kernel/ds.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/arch/sparc64/kernel/ds.c b/arch/sparc64/kernel/ds.c index d412cf876ab4..b6331718ee0c 100644 --- a/arch/sparc64/kernel/ds.c +++ b/arch/sparc64/kernel/ds.c @@ -535,11 +535,21 @@ static int dr_cpu_configure(struct ds_cap_state *cp, u64 req_num, printk(KERN_INFO PFX "Starting cpu %d...\n", cpu); err = cpu_up(cpu); if (err) { + __u32 res = DR_CPU_RES_FAILURE; + __u32 stat = DR_CPU_STAT_UNCONFIGURED; + + if (!cpu_present(cpu)) { + /* CPU not present in MD */ + res = DR_CPU_RES_NOT_IN_MD; + stat = DR_CPU_STAT_NOT_PRESENT; + } else if (err == -ENODEV) { + /* CPU did not call in successfully */ + res = DR_CPU_RES_CPU_NOT_RESPONDING; + } + printk(KERN_INFO PFX "CPU startup failed err=%d\n", err); - dr_cpu_mark(resp, cpu, ncpus, - DR_CPU_RES_FAILURE, - DR_CPU_STAT_UNCONFIGURED); + dr_cpu_mark(resp, cpu, ncpus, res, stat); } } |