patch-2.4.11-dontuse linux/arch/alpha/kernel/setup.c

• Lines: 133
• Date: Thu Oct 4 18:47:08 2001
• Orig file: v2.4.10/linux/arch/alpha/kernel/setup.c
• Orig date: Mon Aug 27 12:41:38 2001

diff -u --recursive --new-file v2.4.10/linux/arch/alpha/kernel/setup.c linux/arch/alpha/kernel/setup.c
@@ -63,12 +63,20 @@
 /* Which processor we booted from.  */
 int boot_cpuid;
 
-/* Using SRM callbacks for initial console output. This works from
-   setup_arch() time through the end of init_IRQ(), as those places
-   are under our control.
-
-   By default, OFF; set it with a bootcommand arg of "srmcons".
-*/
+/*
+ * Using SRM callbacks for initial console output. This works from
+ * setup_arch() time through the end of time_init(), as those places
+ * are under our (Alpha) control.
+
+ * "srmcons" specified in the boot command arguments allows us to
+ * see kernel messages during the period of time before the true
+ * console device is "registered" during console_init(). As of this
+ * version (2.4.10), time_init() is the last Alpha-specific code
+ * called before console_init(), so we put "unregister" code
+ * there to prevent schizophrenic console behavior later... ;-}
+ *
+ * By default, OFF; set it with a bootcommand arg of "srmcons".
+ */
 int srmcons_output = 0;
 
 /* Enforce a memory size limit; useful for testing. By default, none. */
@@ -85,7 +93,7 @@
 
 static struct alpha_machine_vector *get_sysvec(long, long, long);
 static struct alpha_machine_vector *get_sysvec_byname(const char *);
-static void get_sysnames(long, long, char **, char **);
+static void get_sysnames(long, long, long, char **, char **);
 
 static char command_line[COMMAND_LINE_SIZE];
 char saved_command_line[COMMAND_LINE_SIZE];
@@ -537,14 +545,14 @@
 	/*
 	 * Indentify and reconfigure for the current system.
 	 */
+	cpu = (struct percpu_struct*)((char*)hwrpb + hwrpb->processor_offset);
+
 	get_sysnames(hwrpb->sys_type, hwrpb->sys_variation,
-		     &type_name, &var_name);
+		     cpu->type, &type_name, &var_name);
 	if (*var_name == '0')
 		var_name = "";
 
 	if (!vec) {
-		cpu = (struct percpu_struct*)
-			((char*)hwrpb + hwrpb->processor_offset);
 		vec = get_sysvec(hwrpb->sys_type, hwrpb->sys_variation,
 				 cpu->type);
 	}
@@ -801,6 +809,8 @@
 		/* Member ID is a bit-field. */
 		long member = (variation >> 10) & 0x3f;
 
+		cpu &= 0xffffffff; /* make it usable */
+
 		switch (type) {
 		case ST_DEC_ALCOR:
 			if (member < N(alcor_indices))
@@ -809,6 +819,10 @@
 		case ST_DEC_EB164:
 			if (member < N(eb164_indices))
 				vec = eb164_vecs[eb164_indices[member]];
+			/* PC164 may show as EB164 variation with EV56 CPU,
+			   but, since no true EB164 had anything but EV5... */
+			if (vec == &eb164_mv && cpu == EV56_CPU)
+				vec = &pc164_mv;
 			break;
 		case ST_DEC_EB64P:
 			if (member < N(eb64p_indices))
@@ -827,21 +841,18 @@
 				vec = tsunami_vecs[tsunami_indices[member]];
 			break;
 		case ST_DEC_1000:
-			cpu &= 0xffffffff;
 			if (cpu == EV5_CPU || cpu == EV56_CPU)
 				vec = &mikasa_primo_mv;
 			else
 				vec = &mikasa_mv;
 			break;
 		case ST_DEC_NORITAKE:
-			cpu &= 0xffffffff;
 			if (cpu == EV5_CPU || cpu == EV56_CPU)
 				vec = &noritake_primo_mv;
 			else
 				vec = &noritake_mv;
 			break;
 		case ST_DEC_2100_A500:
-			cpu &= 0xffffffff;
 			if (cpu == EV5_CPU || cpu == EV56_CPU)
 				vec = &sable_gamma_mv;
 			else
@@ -905,7 +916,7 @@
 }
 
 static void
-get_sysnames(long type, long variation,
+get_sysnames(long type, long variation, long cpu,
 	     char **type_name, char **variation_name)
 {
 	long member;
@@ -938,12 +949,18 @@
 
 	member = (variation >> 10) & 0x3f; /* member ID is a bit-field */
 
+	cpu &= 0xffffffff; /* make it usable */
+
 	switch (type) { /* select by family */
 	default: /* default to variation "0" for now */
 		break;
 	case ST_DEC_EB164:
 		if (member < N(eb164_indices))
 			*variation_name = eb164_names[eb164_indices[member]];
+		/* PC164 may show as EB164 variation, but with EV56 CPU,
+		   so, since no true EB164 had anything but EV5... */
+		if (eb164_indices[member] == 0 && cpu == EV56_CPU)
+			*variation_name = eb164_names[1]; /* make it PC164 */
 		break;
 	case ST_DEC_ALCOR:
 		if (member < N(alcor_indices))
@@ -1054,7 +1071,7 @@
 		cpu_name = cpu_names[cpu_index];
 
 	get_sysnames(hwrpb->sys_type, hwrpb->sys_variation,
-		     &systype_name, &sysvariation_name);
+		     cpu->type, &systype_name, &sysvariation_name);
 
 	nr_processors = get_nr_processors(cpu, hwrpb->nr_processors);