On Fri, 2008-04-18 at 17:54 +1000, Michael Ellerman wrote:
> In theory the udbg console should be safe to call basically at any time
> after boot. It does not need any per-cpu resources or for the cpu to be
> online, as long as there is a udbg_putc routine hooked up it should
> work. So it should be able to be marked as CON_ANYTIME.
>
> Verifying this will take a bit of time and testing though, so instead of
> marking udbg console as CON_ANYTIME for all platforms, add a routine so
> that a platform can opt-in to having udbg console called early.
>
> Signed-off-by: Michael Ellerman <[EMAIL PROTECTED]>
Nah, just stick it always.
Cheers,
Ben.
> ---
> arch/powerpc/kernel/udbg.c | 5 +++++
> include/asm-powerpc/udbg.h | 1 +
> 2 files changed, 6 insertions(+), 0 deletions(-)
>
> diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c
> index 9ac5f3a..7b1fd86 100644
> --- a/arch/powerpc/kernel/udbg.c
> +++ b/arch/powerpc/kernel/udbg.c
> @@ -158,6 +158,11 @@ static struct console udbg_console = {
> .index = 0,
> };
>
> +void udbg_console_anytime(void)
> +{
> + udbg_console.flags |= CON_ANYTIME;
> +}
> +
> static int early_console_initialized;
>
> /*
> diff --git a/include/asm-powerpc/udbg.h b/include/asm-powerpc/udbg.h
> index 6418cee..102fa91 100644
> --- a/include/asm-powerpc/udbg.h
> +++ b/include/asm-powerpc/udbg.h
> @@ -23,6 +23,7 @@ extern int udbg_write(const char *s, int n);
> extern int udbg_read(char *buf, int buflen);
>
> extern void register_early_udbg_console(void);
> +extern void udbg_console_anytime(void);
> extern void udbg_printf(const char *fmt, ...)
> __attribute__ ((format (printf, 1, 2)));
> extern void udbg_progress(char *s, unsigned short hex);
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