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authorRalf Baechle <ralf@linux-mips.org>2006-04-05 09:45:45 +0100
committerRalf Baechle <ralf@linux-mips.org>2006-04-19 04:14:28 +0200
commit41c594ab65fc89573af296d192aa5235d09717ab (patch)
tree562462512a320f386bdf49eabfbb26bb3ee761fa /arch/mips/mips-boards/sim
parent2600990e640e3bef29ed89d565864cf16ee83833 (diff)
[MIPS] MT: Improved multithreading support.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/mips-boards/sim')
-rw-r--r--arch/mips/mips-boards/sim/cmdline.c59
-rw-r--r--arch/mips/mips-boards/sim/sim_cmdline.c6
-rw-r--r--arch/mips/mips-boards/sim/sim_smp.c14
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 */
}