diff options
-rw-r--r-- | arch/ppc64/kernel/iSeries_setup.c | 22 | ||||
-rw-r--r-- | arch/ppc64/kernel/setup.c | 56 | ||||
-rw-r--r-- | arch/ppc64/kernel/smp.c | 3 |
3 files changed, 24 insertions, 57 deletions
diff --git a/arch/ppc64/kernel/iSeries_setup.c b/arch/ppc64/kernel/iSeries_setup.c index da20120f226..6d06eb550a3 100644 --- a/arch/ppc64/kernel/iSeries_setup.c +++ b/arch/ppc64/kernel/iSeries_setup.c | |||
@@ -852,6 +852,28 @@ static int __init iSeries_src_init(void) | |||
852 | 852 | ||
853 | late_initcall(iSeries_src_init); | 853 | late_initcall(iSeries_src_init); |
854 | 854 | ||
855 | static int set_spread_lpevents(char *str) | ||
856 | { | ||
857 | unsigned long i; | ||
858 | unsigned long val = simple_strtoul(str, NULL, 0); | ||
859 | |||
860 | /* | ||
861 | * The parameter is the number of processors to share in processing | ||
862 | * lp events. | ||
863 | */ | ||
864 | if (( val > 0) && (val <= NR_CPUS)) { | ||
865 | for (i = 1; i < val; ++i) | ||
866 | paca[i].lpqueue_ptr = paca[0].lpqueue_ptr; | ||
867 | |||
868 | printk("lpevent processing spread over %ld processors\n", val); | ||
869 | } else { | ||
870 | printk("invalid spread_lpevents %ld\n", val); | ||
871 | } | ||
872 | |||
873 | return 1; | ||
874 | } | ||
875 | __setup("spread_lpevents=", set_spread_lpevents); | ||
876 | |||
855 | void __init iSeries_early_setup(void) | 877 | void __init iSeries_early_setup(void) |
856 | { | 878 | { |
857 | iSeries_fixup_klimit(); | 879 | iSeries_fixup_klimit(); |
diff --git a/arch/ppc64/kernel/setup.c b/arch/ppc64/kernel/setup.c index 21c57f539c2..dce198d3932 100644 --- a/arch/ppc64/kernel/setup.c +++ b/arch/ppc64/kernel/setup.c | |||
@@ -103,11 +103,6 @@ extern void unflatten_device_tree(void); | |||
103 | 103 | ||
104 | extern void smp_release_cpus(void); | 104 | extern void smp_release_cpus(void); |
105 | 105 | ||
106 | unsigned long decr_overclock = 1; | ||
107 | unsigned long decr_overclock_proc0 = 1; | ||
108 | unsigned long decr_overclock_set = 0; | ||
109 | unsigned long decr_overclock_proc0_set = 0; | ||
110 | |||
111 | int have_of = 1; | 106 | int have_of = 1; |
112 | int boot_cpuid = 0; | 107 | int boot_cpuid = 0; |
113 | int boot_cpuid_phys = 0; | 108 | int boot_cpuid_phys = 0; |
@@ -1120,64 +1115,15 @@ void ppc64_dump_msg(unsigned int src, const char *msg) | |||
1120 | printk("[dump]%04x %s\n", src, msg); | 1115 | printk("[dump]%04x %s\n", src, msg); |
1121 | } | 1116 | } |
1122 | 1117 | ||
1123 | int set_spread_lpevents( char * str ) | ||
1124 | { | ||
1125 | /* The parameter is the number of processors to share in processing lp events */ | ||
1126 | unsigned long i; | ||
1127 | unsigned long val = simple_strtoul( str, NULL, 0 ); | ||
1128 | if ( ( val > 0 ) && ( val <= NR_CPUS ) ) { | ||
1129 | for ( i=1; i<val; ++i ) | ||
1130 | paca[i].lpqueue_ptr = paca[0].lpqueue_ptr; | ||
1131 | printk("lpevent processing spread over %ld processors\n", val); | ||
1132 | } | ||
1133 | else | ||
1134 | printk("invalid spreaqd_lpevents %ld\n", val); | ||
1135 | return 1; | ||
1136 | } | ||
1137 | |||
1138 | /* This should only be called on processor 0 during calibrate decr */ | 1118 | /* This should only be called on processor 0 during calibrate decr */ |
1139 | void setup_default_decr(void) | 1119 | void setup_default_decr(void) |
1140 | { | 1120 | { |
1141 | struct paca_struct *lpaca = get_paca(); | 1121 | struct paca_struct *lpaca = get_paca(); |
1142 | 1122 | ||
1143 | if ( decr_overclock_set && !decr_overclock_proc0_set ) | 1123 | lpaca->default_decr = tb_ticks_per_jiffy; |
1144 | decr_overclock_proc0 = decr_overclock; | ||
1145 | |||
1146 | lpaca->default_decr = tb_ticks_per_jiffy / decr_overclock_proc0; | ||
1147 | lpaca->next_jiffy_update_tb = get_tb() + tb_ticks_per_jiffy; | 1124 | lpaca->next_jiffy_update_tb = get_tb() + tb_ticks_per_jiffy; |
1148 | } | 1125 | } |
1149 | 1126 | ||
1150 | int set_decr_overclock_proc0( char * str ) | ||
1151 | { | ||
1152 | unsigned long val = simple_strtoul( str, NULL, 0 ); | ||
1153 | if ( ( val >= 1 ) && ( val <= 48 ) ) { | ||
1154 | decr_overclock_proc0_set = 1; | ||
1155 | decr_overclock_proc0 = val; | ||
1156 | printk("proc 0 decrementer overclock factor of %ld\n", val); | ||
1157 | } | ||
1158 | else | ||
1159 | printk("invalid proc 0 decrementer overclock factor of %ld\n", val); | ||
1160 | return 1; | ||
1161 | } | ||
1162 | |||
1163 | int set_decr_overclock( char * str ) | ||
1164 | { | ||
1165 | unsigned long val = simple_strtoul( str, NULL, 0 ); | ||
1166 | if ( ( val >= 1 ) && ( val <= 48 ) ) { | ||
1167 | decr_overclock_set = 1; | ||
1168 | decr_overclock = val; | ||
1169 | printk("decrementer overclock factor of %ld\n", val); | ||
1170 | } | ||
1171 | else | ||
1172 | printk("invalid decrementer overclock factor of %ld\n", val); | ||
1173 | return 1; | ||
1174 | |||
1175 | } | ||
1176 | |||
1177 | __setup("spread_lpevents=", set_spread_lpevents ); | ||
1178 | __setup("decr_overclock_proc0=", set_decr_overclock_proc0 ); | ||
1179 | __setup("decr_overclock=", set_decr_overclock ); | ||
1180 | |||
1181 | #ifndef CONFIG_PPC_ISERIES | 1127 | #ifndef CONFIG_PPC_ISERIES |
1182 | /* | 1128 | /* |
1183 | * This function can be used by platforms to "find" legacy serial ports. | 1129 | * This function can be used by platforms to "find" legacy serial ports. |
diff --git a/arch/ppc64/kernel/smp.c b/arch/ppc64/kernel/smp.c index 3b906cd9403..9ef5d36d6b2 100644 --- a/arch/ppc64/kernel/smp.c +++ b/arch/ppc64/kernel/smp.c | |||
@@ -334,7 +334,6 @@ void smp_call_function_interrupt(void) | |||
334 | } | 334 | } |
335 | } | 335 | } |
336 | 336 | ||
337 | extern unsigned long decr_overclock; | ||
338 | extern struct gettimeofday_struct do_gtod; | 337 | extern struct gettimeofday_struct do_gtod; |
339 | 338 | ||
340 | struct thread_info *current_set[NR_CPUS]; | 339 | struct thread_info *current_set[NR_CPUS]; |
@@ -491,7 +490,7 @@ int __devinit __cpu_up(unsigned int cpu) | |||
491 | if (smp_ops->cpu_bootable && !smp_ops->cpu_bootable(cpu)) | 490 | if (smp_ops->cpu_bootable && !smp_ops->cpu_bootable(cpu)) |
492 | return -EINVAL; | 491 | return -EINVAL; |
493 | 492 | ||
494 | paca[cpu].default_decr = tb_ticks_per_jiffy / decr_overclock; | 493 | paca[cpu].default_decr = tb_ticks_per_jiffy; |
495 | 494 | ||
496 | if (!cpu_has_feature(CPU_FTR_SLB)) { | 495 | if (!cpu_has_feature(CPU_FTR_SLB)) { |
497 | void *tmp; | 496 | void *tmp; |