[MIPS] MT: Improved multithreading support.

    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

3 files changed, 4 insertions, 75 deletions

diff --git a/arch/mips/mips-boards/sim/cmdline.c b/arch/mips/mips-boards/sim/cmdline.c
deleted file mode 100644
index fef9fbd8e71..00000000000
--- a/arch/mips/mips-boards/sim/cmdline.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
- *
- * This program is free software; you can distribute it and/or modify it
- * under the terms of the GNU General Public License (Version 2) as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Kernel command line creation using the prom monitor (YAMON) argc/argv.
- */
-#include <linux/init.h>
-#include <linux/string.h>
-
-#include <asm/bootinfo.h>
-
-extern int prom_argc;
-extern int *_prom_argv;
-
-/*
- * YAMON (32-bit PROM) pass arguments and environment as 32-bit pointer.
- * This macro take care of sign extension.
- */
-#define prom_argv(index) ((char *)(((int *)(int)_prom_argv)[(index)]))
-
-char arcs_cmdline[CL_SIZE];
-
-char * __init prom_getcmdline(void)
-{
-	return &(arcs_cmdline[0]);
-}
-
-
-void  __init prom_init_cmdline(void)
-{
-	char *cp;
-	int actr;
-
-	actr = 1; /* Always ignore argv[0] */
-
-	cp = &(arcs_cmdline[0]);
-	while(actr < prom_argc) {
-	        strcpy(cp, prom_argv(actr));
-		cp += strlen(prom_argv(actr));
-		*cp++ = ' ';
-		actr++;
-	}
-	if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */
-		--cp;
-	*cp = '\0';
-}
diff --git a/arch/mips/mips-boards/sim/sim_cmdline.c b/arch/mips/mips-boards/sim/sim_cmdline.c
index 9df37c6fca3..c63021a5dc6 100644
--- a/arch/mips/mips-boards/sim/sim_cmdline.c
+++ b/arch/mips/mips-boards/sim/sim_cmdline.c
@@ -26,8 +26,10 @@ char * __init prom_getcmdline(void)
 	return arcs_cmdline;
 }
 
-
 void  __init prom_init_cmdline(void)
 {
-    /* nothing to do */
+	char *cp;
+	cp = arcs_cmdline;
+	/* Get boot line from environment? */
+	*cp = '\0';
 }
diff --git a/arch/mips/mips-boards/sim/sim_smp.c b/arch/mips/mips-boards/sim/sim_smp.c
index a9f0c2bfe4a..b7084e7c4bf 100644
--- a/arch/mips/mips-boards/sim/sim_smp.c
+++ b/arch/mips/mips-boards/sim/sim_smp.c
@@ -44,8 +44,6 @@
 void core_send_ipi(int cpu, unsigned int action)
 {
 #ifdef CONFIG_MIPS_MT_SMTC
-	void smtc_send_ipi(int, int, unsigned int);
-
 	smtc_send_ipi(cpu, LINUX_SMP_IPI, action);
 #endif /* CONFIG_MIPS_MT_SMTC */
 /* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */
@@ -59,15 +57,8 @@ void core_send_ipi(int cpu, unsigned int action)
 void __init prom_build_cpu_map(void)
 {
 #ifdef CONFIG_MIPS_MT_SMTC
-	extern int mipsmt_build_cpu_map(int startslot);
 	int nextslot;
 
-	cpus_clear(phys_cpu_present_map);
-
-	/* Register the boot CPU */
-
-	smp_prepare_boot_cpu();
-
 	/*
 	 * As of November, 2004, MIPSsim only simulates one core
 	 * at a time.  However, that core may be a MIPS MT core
@@ -87,8 +78,6 @@ void __init prom_build_cpu_map(void)
 void prom_boot_secondary(int cpu, struct task_struct *idle)
 {
 #ifdef CONFIG_MIPS_MT_SMTC
-	extern void smtc_boot_secondary(int cpu, struct task_struct *t);
-
 	smtc_boot_secondary(cpu, idle);
 #endif /* CONFIG_MIPS_MT_SMTC */
 }
@@ -113,7 +102,6 @@ void prom_init_secondary(void)
 void prom_prepare_cpus(unsigned int max_cpus)
 {
 #ifdef CONFIG_MIPS_MT_SMTC
-	void mipsmt_prepare_cpus(int c);
 	/*
 	 * As noted above, we can assume a single CPU for now
 	 * but it may be multithreaded.
@@ -132,8 +120,6 @@ void prom_prepare_cpus(unsigned int max_cpus)
 void prom_smp_finish(void)
 {
 #ifdef CONFIG_MIPS_MT_SMTC
-	void smtc_smp_finish(void);
-
 	smtc_smp_finish();
 #endif /* CONFIG_MIPS_MT_SMTC */
 }