| Message ID | 1439189919-12396-1-git-send-email-bmeng.cn@gmail.com |
|---|---|
| State | Accepted |
| Delegated to: | Simon Glass |
| Headers | show |
On 10 August 2015 at 00:58, Bin Meng <bmeng.cn@gmail.com> wrote: > Multiple APs are brought up simultaneously and they may get the same > seq num in the uclass_resolve_seq() during device_probe(). To avoid > this, set req_seq to the reg number in the device tree in advance. > > Signed-off-by: Bin Meng <bmeng.cn@gmail.com> > --- > > arch/x86/cpu/mp_init.c | 7 +++++++ > 1 file changed, 7 insertions(+) Acked-by: Simon Glass <sjg@chromium.org>
On 10 August 2015 at 06:58, Simon Glass <sjg@chromium.org> wrote: > On 10 August 2015 at 00:58, Bin Meng <bmeng.cn@gmail.com> wrote: >> Multiple APs are brought up simultaneously and they may get the same >> seq num in the uclass_resolve_seq() during device_probe(). To avoid >> this, set req_seq to the reg number in the device tree in advance. >> >> Signed-off-by: Bin Meng <bmeng.cn@gmail.com> >> --- >> >> arch/x86/cpu/mp_init.c | 7 +++++++ >> 1 file changed, 7 insertions(+) > > Acked-by: Simon Glass <sjg@chromium.org> Applied to u-boot-x86, thanks!
diff --git a/arch/x86/cpu/mp_init.c b/arch/x86/cpu/mp_init.c index 3294a50..4334f5b 100644 --- a/arch/x86/cpu/mp_init.c +++ b/arch/x86/cpu/mp_init.c @@ -515,5 +515,12 @@ int mp_init(struct mp_params *p) int mp_init_cpu(struct udevice *cpu, void *unused) { + /* + * Multiple APs are brought up simultaneously and they may get the same + * seq num in the uclass_resolve_seq() during device_probe(). To avoid + * this, set req_seq to the reg number in the device tree in advance. + */ + cpu->req_seq = fdtdec_get_int(gd->fdt_blob, cpu->of_offset, "reg", -1); + return device_probe(cpu); }
Multiple APs are brought up simultaneously and they may get the same seq num in the uclass_resolve_seq() during device_probe(). To avoid this, set req_seq to the reg number in the device tree in advance. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> --- arch/x86/cpu/mp_init.c | 7 +++++++ 1 file changed, 7 insertions(+)