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authorRalf Baechle <ralf@linux-mips.org>2007-11-19 07:23:51 -0500
committerRalf Baechle <ralf@linux-mips.org>2008-01-29 05:14:57 -0500
commit87353d8ac39c52784da605ecbe965ecdfad609ad (patch)
treec95ce7cbe9b099c21cab71a195621801b04bc05a /arch/mips/mips-boards
parent19388fb092d89e179575bd0b44f51b57e175edf5 (diff)
[MIPS] SMP: Call platform methods via ops structure.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/mips-boards')
-rw-r--r--arch/mips/mips-boards/generic/init.c8
-rw-r--r--arch/mips/mips-boards/malta/malta_smtc.c66
2 files changed, 48 insertions, 26 deletions
diff --git a/arch/mips/mips-boards/generic/init.c b/arch/mips/mips-boards/generic/init.c
index 30f1f54cb68b..1695dca5506b 100644
--- a/arch/mips/mips-boards/generic/init.c
+++ b/arch/mips/mips-boards/generic/init.c
@@ -250,6 +250,8 @@ void __init mips_ejtag_setup(void)
250 flush_icache_range((unsigned long)base, (unsigned long)base + 0x80); 250 flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
251} 251}
252 252
253extern struct plat_smp_ops msmtc_smp_ops;
254
253void __init prom_init(void) 255void __init prom_init(void)
254{ 256{
255 prom_argc = fw_arg0; 257 prom_argc = fw_arg0;
@@ -416,4 +418,10 @@ void __init prom_init(void)
416#ifdef CONFIG_SERIAL_8250_CONSOLE 418#ifdef CONFIG_SERIAL_8250_CONSOLE
417 console_config(); 419 console_config();
418#endif 420#endif
421#ifdef CONFIG_MIPS_MT_SMP
422 register_smp_ops(&vsmp_smp_ops);
423#endif
424#ifdef CONFIG_MIPS_MT_SMTC
425 register_smp_ops(&msmtc_smp_ops);
426#endif
419} 427}
diff --git a/arch/mips/mips-boards/malta/malta_smtc.c b/arch/mips/mips-boards/malta/malta_smtc.c
index 5c980f4a48fe..6f051ca243fa 100644
--- a/arch/mips/mips-boards/malta/malta_smtc.c
+++ b/arch/mips/mips-boards/malta/malta_smtc.c
@@ -15,26 +15,24 @@
15 * Cause the specified action to be performed on a targeted "CPU" 15 * Cause the specified action to be performed on a targeted "CPU"
16 */ 16 */
17 17
18void core_send_ipi(int cpu, unsigned int action) 18static void msmtc_send_ipi_single(int cpu, unsigned int action)
19{ 19{
20 /* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */ 20 /* "CPU" may be TC of same VPE, VPE of same CPU, or different CPU */
21 smtc_send_ipi(cpu, LINUX_SMP_IPI, action); 21 smtc_send_ipi(cpu, LINUX_SMP_IPI, action);
22} 22}
23 23
24/* 24static void msmtc_send_ipi_mask(cpumask_t mask, unsigned int action)
25 * Platform "CPU" startup hook
26 */
27
28void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
29{ 25{
30 smtc_boot_secondary(cpu, idle); 26 unsigned int i;
27
28 for_each_cpu_mask(i, mask)
29 msmtc_send_ipi_single(i, action);
31} 30}
32 31
33/* 32/*
34 * Post-config but pre-boot cleanup entry point 33 * Post-config but pre-boot cleanup entry point
35 */ 34 */
36 35static void __cpuinit msmtc_init_secondary(void)
37void __cpuinit prom_init_secondary(void)
38{ 36{
39 void smtc_init_secondary(void); 37 void smtc_init_secondary(void);
40 int myvpe; 38 int myvpe;
@@ -50,45 +48,61 @@ void __cpuinit prom_init_secondary(void)
50 set_c0_status(0x100 << cp0_perfcount_irq); 48 set_c0_status(0x100 << cp0_perfcount_irq);
51 } 49 }
52 50
53 smtc_init_secondary(); 51 smtc_init_secondary();
54} 52}
55 53
56/* 54/*
57 * Platform SMP pre-initialization 55 * Platform "CPU" startup hook
58 *
59 * As noted above, we can assume a single CPU for now
60 * but it may be multithreaded.
61 */ 56 */
62 57static void __cpuinit msmtc_boot_secondary(int cpu, struct task_struct *idle)
63void __cpuinit plat_smp_setup(void)
64{ 58{
65 if (read_c0_config3() & (1<<2)) 59 smtc_boot_secondary(cpu, idle);
66 mipsmt_build_cpu_map(0);
67} 60}
68 61
69void __init plat_prepare_cpus(unsigned int max_cpus) 62/*
63 * SMP initialization finalization entry point
64 */
65static void __cpuinit msmtc_smp_finish(void)
70{ 66{
71 if (read_c0_config3() & (1<<2)) 67 smtc_smp_finish();
72 mipsmt_prepare_cpus();
73} 68}
74 69
75/* 70/*
76 * SMP initialization finalization entry point 71 * Hook for after all CPUs are online
77 */ 72 */
78 73
79void __cpuinit prom_smp_finish(void) 74static void msmtc_cpus_done(void)
80{ 75{
81 smtc_smp_finish();
82} 76}
83 77
84/* 78/*
85 * Hook for after all CPUs are online 79 * Platform SMP pre-initialization
80 *
81 * As noted above, we can assume a single CPU for now
82 * but it may be multithreaded.
86 */ 83 */
87 84
88void prom_cpus_done(void) 85static void __init msmtc_smp_setup(void)
89{ 86{
87 mipsmt_build_cpu_map(0);
90} 88}
91 89
90static void __init msmtc_prepare_cpus(unsigned int max_cpus)
91{
92 mipsmt_prepare_cpus();
93}
94
95struct plat_smp_ops msmtc_smp_ops = {
96 .send_ipi_single = msmtc_send_ipi_single,
97 .send_ipi_mask = msmtc_send_ipi_mask,
98 .init_secondary = msmtc_init_secondary,
99 .smp_finish = msmtc_smp_finish,
100 .cpus_done = msmtc_cpus_done,
101 .boot_secondary = msmtc_boot_secondary,
102 .smp_setup = msmtc_smp_setup,
103 .prepare_cpus = msmtc_prepare_cpus,
104};
105
92#ifdef CONFIG_MIPS_MT_SMTC_IRQAFF 106#ifdef CONFIG_MIPS_MT_SMTC_IRQAFF
93/* 107/*
94 * IRQ affinity hook 108 * IRQ affinity hook