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authorRalf Baechle <ralf@linux-mips.org>2007-11-19 12:23:51 +0000
committerRalf Baechle <ralf@linux-mips.org>2008-01-29 10:14:57 +0000
commit87353d8ac39c52784da605ecbe965ecdfad609ad (patch)
treec95ce7cbe9b099c21cab71a195621801b04bc05a /arch/mips/mipssim
parent19388fb092d89e179575bd0b44f51b57e175edf5 (diff)
[MIPS] SMP: Call platform methods via ops structure.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/mipssim')
-rw-r--r--arch/mips/mipssim/Makefile2
-rw-r--r--arch/mips/mipssim/sim_setup.c16
-rw-r--r--arch/mips/mipssim/sim_smtc.c (renamed from arch/mips/mipssim/sim_smp.c)92
3 files changed, 59 insertions, 51 deletions
diff --git a/arch/mips/mipssim/Makefile b/arch/mips/mipssim/Makefile
index 75568b584df..57f43c1c788 100644
--- a/arch/mips/mipssim/Makefile
+++ b/arch/mips/mipssim/Makefile
@@ -21,6 +21,6 @@ obj-y := sim_platform.o sim_setup.o sim_mem.o sim_time.o sim_int.o \
sim_cmdline.o
obj-$(CONFIG_EARLY_PRINTK) += sim_console.o
-obj-$(CONFIG_SMP) += sim_smp.o
+obj-$(CONFIG_MIPS_MT_SMTC) += sim_smtc.o
EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/mipssim/sim_setup.c b/arch/mips/mipssim/sim_setup.c
index 452c129d02c..d49fe73426b 100644
--- a/arch/mips/mipssim/sim_setup.c
+++ b/arch/mips/mipssim/sim_setup.c
@@ -60,6 +60,8 @@ void __init plat_mem_setup(void)
#endif
}
+extern struct plat_smp_ops ssmtc_smp_ops;
+
void __init prom_init(void)
{
set_io_port_base(0xbfd00000);
@@ -67,8 +69,20 @@ void __init prom_init(void)
pr_info("\nLINUX started...\n");
prom_init_cmdline();
prom_meminit();
-}
+#ifdef CONFIG_MIPS_MT_SMP
+ if (cpu_has_mipsmt)
+ register_smp_ops(&vsmp_smp_ops);
+ else
+ register_smp_ops(&up_smp_ops);
+#endif
+#ifdef CONFIG_MIPS_MT_SMTC
+ if (cpu_has_mipsmt)
+ register_smp_ops(&ssmtc_smp_ops);
+ else
+ register_smp_ops(&up_smp_ops);
+#endif
+}
static void __init serial_init(void)
{
diff --git a/arch/mips/mipssim/sim_smp.c b/arch/mips/mipssim/sim_smtc.c
index ccbbccac23e..d6e4f656ad1 100644
--- a/arch/mips/mipssim/sim_smp.c
+++ b/arch/mips/mipssim/sim_smtc.c
@@ -16,7 +16,7 @@
*
*/
/*
- * Simulator Platform-specific hooks for SMP operation
+ * Simulator Platform-specific hooks for SMTC operation
*/
#include <linux/kernel.h>
#include <linux/sched.h>
@@ -29,65 +29,72 @@
#include <asm/processor.h>
#include <asm/system.h>
#include <asm/mmu_context.h>
-#ifdef CONFIG_MIPS_MT_SMTC
#include <asm/smtc_ipi.h>
-#endif /* CONFIG_MIPS_MT_SMTC */
/* VPE/SMP Prototype implements platform interfaces directly */
-#if !defined(CONFIG_MIPS_MT_SMP)
/*
* Cause the specified action to be performed on a targeted "CPU"
*/
-void core_send_ipi(int cpu, unsigned int action)
+static void ssmtc_send_ipi_single(int cpu, unsigned int action)
{
-#ifdef CONFIG_MIPS_MT_SMTC
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 */
+ /* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */
+}
+
+static inline void ssmtc_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+ unsigned int i;
+ for_each_cpu_mask(i, mask)
+ ssmtc_send_ipi_single(i, action);
}
/*
- * Platform "CPU" startup hook
+ * Post-config but pre-boot cleanup entry point
*/
-
-void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
+static void __cpuinit ssmtc_init_secondary(void)
{
-#ifdef CONFIG_MIPS_MT_SMTC
- smtc_boot_secondary(cpu, idle);
-#endif /* CONFIG_MIPS_MT_SMTC */
+ void smtc_init_secondary(void);
+
+ smtc_init_secondary();
}
/*
- * Post-config but pre-boot cleanup entry point
+ * SMP initialization finalization entry point
*/
+static void __cpuinit ssmtc_smp_finish(void)
+{
+ smtc_smp_finish();
+}
-void __cpuinit prom_init_secondary(void)
+/*
+ * Hook for after all CPUs are online
+ */
+static void ssmtc_cpus_done(void)
{
-#ifdef CONFIG_MIPS_MT_SMTC
- void smtc_init_secondary(void);
+}
- smtc_init_secondary();
-#endif /* CONFIG_MIPS_MT_SMTC */
+/*
+ * Platform "CPU" startup hook
+ */
+static void __cpuinit ssmtc_boot_secondary(int cpu, struct task_struct *idle)
+{
+ smtc_boot_secondary(cpu, idle);
}
-void plat_smp_setup(void)
+static void __init ssmtc_smp_setup(void)
{
-#ifdef CONFIG_MIPS_MT_SMTC
if (read_c0_config3() & (1 << 2))
mipsmt_build_cpu_map(0);
-#endif /* CONFIG_MIPS_MT_SMTC */
}
/*
* Platform SMP pre-initialization
*/
-
-void plat_prepare_cpus(unsigned int max_cpus)
+static void ssmtc_prepare_cpus(unsigned int max_cpus)
{
-#ifdef CONFIG_MIPS_MT_SMTC
/*
* As noted above, we can assume a single CPU for now
* but it may be multithreaded.
@@ -96,28 +103,15 @@ void plat_prepare_cpus(unsigned int max_cpus)
if (read_c0_config3() & (1 << 2)) {
mipsmt_prepare_cpus();
}
-#endif /* CONFIG_MIPS_MT_SMTC */
}
-/*
- * SMP initialization finalization entry point
- */
-
-void __cpuinit prom_smp_finish(void)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
- smtc_smp_finish();
-#endif /* CONFIG_MIPS_MT_SMTC */
-}
-
-/*
- * Hook for after all CPUs are online
- */
-
-void prom_cpus_done(void)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
-
-#endif /* CONFIG_MIPS_MT_SMTC */
-}
-#endif /* CONFIG_MIPS32R2_MT_SMP */
+struct plat_smp_ops ssmtc_smp_ops = {
+ .send_ipi_single = ssmtc_send_ipi_single,
+ .send_ipi_mask = ssmtc_send_ipi_mask,
+ .init_secondary = ssmtc_init_secondary,
+ .smp_finish = ssmtc_smp_finish,
+ .cpus_done = ssmtc_cpus_done,
+ .boot_secondary = ssmtc_boot_secondary,
+ .smp_setup = ssmtc_smp_setup,
+ .prepare_cpus = ssmtc_prepare_cpus,
+};