diff options
| author | Peter Chubb <peterc@chubb.wattle.id.au> | 2007-08-21 13:51:45 +1000 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2007-09-01 02:50:39 -0700 |
| commit | 8b713c67bccef7cabb0ee915f47eb33d82636af9 (patch) | |
| tree | 73a0577c8dd70825eaa41dc4527ab09432418166 | |
| parent | 99a19cf1c0eb22bad83fff060f08330ee9e029e2 (diff) | |
| download | linux-8b713c67bccef7cabb0ee915f47eb33d82636af9.tar.gz linux-8b713c67bccef7cabb0ee915f47eb33d82636af9.tar.bz2 linux-8b713c67bccef7cabb0ee915f47eb33d82636af9.zip | |
[IA64] Enable early console for Ski simulator
This patch cleans up the `enable early console for SKI' patch
(471e7a44848f467c9b83adc3463d019d2fa8817f), and
1. potentially allows the gensparse_defconfig to work again.
(there are other problems running a generic kernel on Ski)
2. fixes the `console registered twice' problem.
3. Cleans up the code by moving the `extern hpsim_cons' declaration to
a new asm/hpsim.h file.
Thanks to Jes for comments.
Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
| -rw-r--r-- | arch/ia64/hp/sim/hpsim_console.c | 15 | ||||
| -rw-r--r-- | arch/ia64/hp/sim/hpsim_setup.c | 9 | ||||
| -rw-r--r-- | arch/ia64/kernel/setup.c | 8 | ||||
| -rw-r--r-- | include/asm-ia64/hpsim.h | 10 |
4 files changed, 28 insertions, 14 deletions
diff --git a/arch/ia64/hp/sim/hpsim_console.c b/arch/ia64/hp/sim/hpsim_console.c index 6e149c8ab835..0475a5452404 100644 --- a/arch/ia64/hp/sim/hpsim_console.c +++ b/arch/ia64/hp/sim/hpsim_console.c @@ -21,6 +21,7 @@ #include <asm/machvec.h> #include <asm/pgtable.h> #include <asm/sal.h> +#include <asm/hpsim.h> #include "hpsim_ssc.h" @@ -28,7 +29,7 @@ static int simcons_init (struct console *, char *); static void simcons_write (struct console *, const char *, unsigned); static struct tty_driver *simcons_console_device (struct console *, int *); -struct console hpsim_cons = { +static struct console hpsim_cons = { .name = "simcons", .write = simcons_write, .device = simcons_console_device, @@ -62,3 +63,15 @@ static struct tty_driver *simcons_console_device (struct console *c, int *index) *index = c->index; return hp_simserial_driver; } + +int simcons_register(void) +{ + if (!ia64_platform_is("hpsim")) + return 1; + + if (hpsim_cons.flags & CON_ENABLED) + return 1; + + register_console(&hpsim_cons); + return 0; +} diff --git a/arch/ia64/hp/sim/hpsim_setup.c b/arch/ia64/hp/sim/hpsim_setup.c index f2297192a582..f629e903ebc7 100644 --- a/arch/ia64/hp/sim/hpsim_setup.c +++ b/arch/ia64/hp/sim/hpsim_setup.c @@ -21,6 +21,7 @@ #include <asm/machvec.h> #include <asm/pgtable.h> #include <asm/sal.h> +#include <asm/hpsim.h> #include "hpsim_ssc.h" @@ -41,11 +42,5 @@ hpsim_setup (char **cmdline_p) { ROOT_DEV = Root_SDA1; /* default to first SCSI drive */ -#ifdef CONFIG_HP_SIMSERIAL_CONSOLE - { - extern struct console hpsim_cons; - if (ia64_platform_is("hpsim")) - register_console(&hpsim_cons); - } -#endif + simcons_register(); } diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 1f9b1d818dcd..9e392a30d197 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -60,6 +60,7 @@ #include <asm/smp.h> #include <asm/system.h> #include <asm/unistd.h> +#include <asm/hpsim.h> #if defined(CONFIG_SMP) && (IA64_CPU_SIZE > PAGE_SIZE) # error "struct cpuinfo_ia64 too big!" @@ -389,13 +390,8 @@ early_console_setup (char *cmdline) if (!efi_setup_pcdp_console(cmdline)) earlycons++; #endif -#ifdef CONFIG_HP_SIMSERIAL_CONSOLE - { - extern struct console hpsim_cons; - register_console(&hpsim_cons); + if (!simcons_register()) earlycons++; - } -#endif return (earlycons) ? 0 : -1; } diff --git a/include/asm-ia64/hpsim.h b/include/asm-ia64/hpsim.h new file mode 100644 index 000000000000..d6be3fdc39fa --- /dev/null +++ b/include/asm-ia64/hpsim.h @@ -0,0 +1,10 @@ +#ifndef _ASMIA64_HPSIM_H +#define _ASMIA64_HPSIM_H + +#ifndef CONFIG_HP_SIMSERIAL_CONSOLE +static inline int simcons_register(void) { return 1; } +#else +int simcons_register(void); +#endif + +#endif |