Hi Vitaly,
On 6/12/19 8:45 PM, Vitaly Andrianov wrote:
> Hi Jan, Ralf,
>
> More than a year ago I was working on Jailhouse support for TI AM572x
> SOC. That time we used v0.8 and everything worked fine. Presently I
> started to port that support to v0.10 version and found a lot of new
> features. The mane "feature" that you removed "mach-..." and introduced
> "units". Because am57xx requires to have custom init and cell exit
> functions I think I need to create am57xx unit.
Hehe, upstream first! :)
>
> If you remember, the am57xx had its own:
>
> int mach_init(void),
> void mach_cell_exit(struct cell *cell) and
> int arch_handle_smc(struct trap_context *ctx)
>
> so, I have to implement the corresponding am57xx_init() and
> am57xx_cell_exit().
>
> Here is the old mach_cell_exit function, but many of the functions it
> uses disappeared in the v0.10 version.
>
> void mach_cell_exit(struct cell *cell)
> {
> unsigned int cpu;
>
> for_each_cpu(cpu, cell->cpu_set) {
> per_cpu(cpu)->cpu_on_entry =
> mmio_read32(wkupgen_base + OMAP_AUX_CORE_BOOT_0 +
> cpu * 4);
> per_cpu(cpu)->cpu_on_context = 0;
> arch_suspend_cpu(cpu);
> arch_reset_cpu(cpu);
> }
> }
>
> Please could you help me to find a example of similar function for other
> platforms I can use to implement the am57xx_cell_exit function. W/o it I
> cannot bring the second CPU after a cell destroy.
Almost exactly a year ago, I removed vexpress support. Vexpress used to
have a similar pattern. Before I removed it, Jan converted it to a unit.
This should give you an example how you can use it.
Have a look at aa9a67d63f326a89294781acb7b1562f54b0538e. Does that help?
Ralf
>
> Thanks,
> -Vitaly
>
>
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