Gitweb: http://git.kernel.org/linus/47b178bb69ea4d0043f2df509c714bc5b287f375
Commit: 47b178bb69ea4d0043f2df509c714bc5b287f375
Parent: 0365070f05f12f1648b4adf22cfb52ec7a8a371c
Author: Tim Anderson <tanderson@mvista.com>
AuthorDate: Wed Jun 17 16:25:18 2009 -0700
Committer: Ralf Baechle <ralf@linux-mips.org>
CommitDate: Fri Jul 3 15:45:26 2009 +0100
MIPS: CMP: Move gcmp_probe to before the SMP ops
This is to move the gcmp_probe call to before the use of and selection of
the smp_ops functions. This allows malta with 1004K to work.
Signed-off-by: Tim Anderson <tanderson@mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
arch/mips/include/asm/gcmpregs.h | 2 ++
arch/mips/mti-malta/malta-init.c | 14 +++++++++++++-
arch/mips/mti-malta/malta-int.c | 5 +----
3 files changed, 16 insertions(+), 5 deletions(-)
diff --git a/arch/mips/include/asm/gcmpregs.h b/arch/mips/include/asm/gcmpregs.h
index d74a8a4..36fd969 100644
--- a/arch/mips/include/asm/gcmpregs.h
+++ b/arch/mips/include/asm/gcmpregs.h
@@ -114,4 +114,6 @@
#define GCMP_CCB_DINTGROUP_OFS 0x0030 /* DINT Group Participate */
#define GCMP_CCB_DBGGROUP_OFS 0x0100 /* DebugBreak Group */
+extern int __init gcmp_probe(unsigned long, unsigned long);
+
#endif /* _ASM_GCMPREGS_H */
diff --git a/arch/mips/mti-malta/malta-init.c b/arch/mips/mti-malta/malta-init.c
index 475038a..27c807b 100644
--- a/arch/mips/mti-malta/malta-init.c
+++ b/arch/mips/mti-malta/malta-init.c
@@ -30,6 +30,7 @@
#include <asm/cacheflush.h>
#include <asm/traps.h>
+#include <asm/gcmpregs.h>
#include <asm/mips-boards/prom.h>
#include <asm/mips-boards/generic.h>
#include <asm/mips-boards/bonito64.h>
@@ -192,6 +193,8 @@ extern struct plat_smp_ops msmtc_smp_ops;
void __init prom_init(void)
{
+ int result;
+
prom_argc = fw_arg0;
_prom_argv = (int *) fw_arg1;
_prom_envp = (int *) fw_arg2;
@@ -358,12 +361,21 @@ void __init prom_init(void)
#ifdef CONFIG_SERIAL_8250_CONSOLE
console_config();
#endif
+ /* Early detection of CMP support */
+ result = gcmp_probe(GCMP_BASE_ADDR, GCMP_ADDRSPACE_SZ);
+
#ifdef CONFIG_MIPS_CMP
- register_smp_ops(&cmp_smp_ops);
+ if (result)
+ register_smp_ops(&cmp_smp_ops);
#endif
#ifdef CONFIG_MIPS_MT_SMP
+#ifdef CONFIG_MIPS_CMP
+ if (!result)
+ register_smp_ops(&vsmp_smp_ops);
+#else
register_smp_ops(&vsmp_smp_ops);
#endif
+#endif
#ifdef CONFIG_MIPS_MT_SMTC
register_smp_ops(&msmtc_smp_ops);
#endif
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index bc0ba58..a8756f8 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -409,7 +409,7 @@ static struct gic_intr_map gic_intr_map[GIC_NUM_INTRS] = {
/*
* GCMP needs to be detected before any SMP initialisation
*/
-static int __init gcmp_probe(unsigned long addr, unsigned long size)
+int __init gcmp_probe(unsigned long addr, unsigned long size)
{
if (gcmp_present >= 0)
return gcmp_present;
@@ -449,14 +449,11 @@ static void __init fill_ipi_map(void)
void __init arch_init_irq(void)
{
- int gic_present, gcmp_present;
-
init_i8259_irqs();
if (!cpu_has_veic)
mips_cpu_irq_init();
- gcmp_present = gcmp_probe(GCMP_BASE_ADDR, GCMP_ADDRSPACE_SZ);
if (gcmp_present) {
GCMPGCB(GICBA) = GIC_BASE_ADDR | GCMP_GCB_GICBA_EN_MSK;
gic_present = 1;
--
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