[OpenBIOS] [PATCH] Dummy tick counter
Olivier Danet
odanet at caramail.com
Sat Feb 1 21:54:59 CET 2014
romvec.pvtime is a pointer to a millisecond rate uptime counter.
NextSTEP uses this counter for timing the 10 seconds timeout during
boot, when
asking for boot options.
For now, let's just set this to a constant, there is no timeout, but we
avoid
null pointer dereferencing.
Signed-off-by: Olivier Danet <odanet at caramail.com>
===================================================================
--- arch/sparc32/romvec.c (révision 1257)
+++ arch/sparc32/romvec.c (copie de travail)
@@ -26,7 +26,7 @@
char obp_stdin, obp_stdout;
const char *obp_stdin_path, *obp_stdout_path;
-
+int32_t obp_ticks;
struct linux_arguments_v0 obp_arg;
const char *bootpath;
static const struct linux_arguments_v0 * const obp_argp = &obp_arg;
@@ -456,6 +456,8 @@
via their handler (see call-romvec.S) which acts as a proxy to save
the globals and setup the stack correctly */
+ obp_ticks = 10000; /* Dummy. Ticks should be the uptime, in
milliseconds. */
+
// Linux wants a R/W romvec table
romvec0.pv_magic_cookie = LINUX_OPPROM_MAGIC;
romvec0.pv_romvers = 3;
@@ -479,6 +481,7 @@
romvec0.pv_reboot = obp_reboot_handler;
romvec0.pv_printf = obp_printf_handler;
romvec0.pv_abort = obp_abort_handler;
+ romvec0.pv_ticks = &obp_ticks;
romvec0.pv_halt = obp_halt_handler;
romvec0.pv_synchook = &sync_hook;
romvec0.pv_v0bootargs = &obp_argp;
===================================================================
More information about the OpenBIOS
mailing list