tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.sched/core head: f83f0b0647162b099f62e62c203b1cfb90b40239 commit: 3ab291518ff78c8410fd336e02eb59f10d98d4e7 [138/144] sched/headers: Split <linux/sched/task_stack> out of <linux/sched.h> config: mips-nlm_xlr_defconfig (attached as .config) compiler: mips-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 3ab291518ff78c8410fd336e02eb59f10d98d4e7 # save the attached .config to linux build tree make.cross ARCH=mips
All warnings (new ones prefixed by >>):
In file included from arch/mips/include/asm/thread_info.h:15:0,
from include/linux/thread_info.h:25,
from include/asm-generic/preempt.h:4,
from ./arch/mips/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:80,
from include/linux/smp.h:55,
from arch/mips/netlogic/common/smp.c:38:
arch/mips/netlogic/common/smp.c: In function 'nlm_boot_secondary':
arch/mips/include/asm/processor.h:384:41: error: implicit declaration of
function 'task_stack_page' [-Werror=implicit-function-declaration]
#define __KSTK_TOS(tsk) ((unsigned long)task_stack_page(tsk) + \
^
>> arch/mips/netlogic/common/smp.c:157:31: note: in expansion of macro
>> '__KSTK_TOS'
nlm_next_sp = (unsigned long)__KSTK_TOS(idle);
^~~~~~~~~~
cc1: some warnings being treated as errors
vim +/__KSTK_TOS +157 arch/mips/netlogic/common/smp.c
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 32
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 33
*/
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 34
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 35
#include <linux/kernel.h>
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 36
#include <linux/delay.h>
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 37
#include <linux/init.h>
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 @38
#include <linux/smp.h>
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 39
#include <linux/irq.h>
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 40
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 41
#include <asm/mmu_context.h>
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 42
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 43
#include <asm/netlogic/interrupt.h>
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 44
#include <asm/netlogic/mips-extns.h>
0c9654072a arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-11 45
#include <asm/netlogic/haldefs.h>
0c9654072a arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-11 46
#include <asm/netlogic/common.h>
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 47
65040e224e arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-16 48
#if defined(CONFIG_CPU_XLP)
65040e224e arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-16 49
#include <asm/netlogic/xlp-hal/iomap.h>
66d29985fa arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-16 50
#include <asm/netlogic/xlp-hal/xlp.h>
65040e224e arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-16 51
#include <asm/netlogic/xlp-hal/pic.h>
65040e224e arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-16 52
#elif defined(CONFIG_CPU_XLR)
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 53
#include <asm/netlogic/xlr/iomap.h>
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 54
#include <asm/netlogic/xlr/pic.h>
66d29985fa arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-16 55
#include <asm/netlogic/xlr/xlr.h>
65040e224e arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-16 56
#else
65040e224e arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-16 57
#error "Unknown CPU"
65040e224e arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-16 58
#endif
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 59
0c9654072a arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-11 60
void nlm_send_ipi_single(int logical_cpu, unsigned int action)
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 61 {
c273652546 arch/mips/netlogic/common/smp.c Jayachandran C 2015-01-07 62
unsigned int hwtid;
77ae798f5b arch/mips/netlogic/common/smp.c Jayachandran C 2012-10-31 63
uint64_t picbase;
77ae798f5b arch/mips/netlogic/common/smp.c Jayachandran C 2012-10-31 64
c273652546 arch/mips/netlogic/common/smp.c Jayachandran C 2015-01-07 65
/* node id is part of hwtid, and needed for send_ipi */
c273652546 arch/mips/netlogic/common/smp.c Jayachandran C 2015-01-07 66
hwtid = cpu_logical_map(logical_cpu);
c273652546 arch/mips/netlogic/common/smp.c Jayachandran C 2015-01-07 67
picbase = nlm_get_node(nlm_hwtid_to_node(hwtid))->picbase;
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 68
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 69
if (action & SMP_CALL_FUNCTION)
c273652546 arch/mips/netlogic/common/smp.c Jayachandran C 2015-01-07 70
nlm_pic_send_ipi(picbase, hwtid, IRQ_IPI_SMP_FUNCTION, 0);
0c9654072a arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-11 71
if (action & SMP_RESCHEDULE_YOURSELF)
c273652546 arch/mips/netlogic/common/smp.c Jayachandran C 2015-01-07 72
nlm_pic_send_ipi(picbase, hwtid, IRQ_IPI_SMP_RESCHEDULE, 0);
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 73 }
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 74
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 75
void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action)
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 76 {
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 77
int cpu;
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 78
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 79
for_each_cpu(cpu, mask) {
0c9654072a arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-11 80
nlm_send_ipi_single(cpu, action);
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 81
}
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 82 }
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 83
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 84
/* IRQ_IPI_SMP_FUNCTION Handler */
bd0b9ac405 arch/mips/netlogic/common/smp.c Thomas Gleixner 2015-09-14 85
void nlm_smp_function_ipi_handler(struct irq_desc *desc)
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 86 {
31429d1a74 arch/mips/netlogic/common/smp.c Thomas Gleixner 2015-07-13 87
unsigned int irq = irq_desc_get_irq(desc);
220d9122e8 arch/mips/netlogic/common/smp.c Jayachandran C 2013-01-14 88
clear_c0_eimr(irq);
220d9122e8 arch/mips/netlogic/common/smp.c Jayachandran C 2013-01-14 89
ack_c0_eirr(irq);
4ace6139bf arch/mips/netlogic/common/smp.c Alex Smith 2015-07-24 90
generic_smp_call_function_interrupt();
220d9122e8 arch/mips/netlogic/common/smp.c Jayachandran C 2013-01-14 91
set_c0_eimr(irq);
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 92 }
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 93
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 94
/* IRQ_IPI_SMP_RESCHEDULE handler */
bd0b9ac405 arch/mips/netlogic/common/smp.c Thomas Gleixner 2015-09-14 95
void nlm_smp_resched_ipi_handler(struct irq_desc *desc)
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 96 {
31429d1a74 arch/mips/netlogic/common/smp.c Thomas Gleixner 2015-07-13 97
unsigned int irq = irq_desc_get_irq(desc);
220d9122e8 arch/mips/netlogic/common/smp.c Jayachandran C 2013-01-14 98
clear_c0_eimr(irq);
220d9122e8 arch/mips/netlogic/common/smp.c Jayachandran C 2013-01-14 99
ack_c0_eirr(irq);
65040e224e arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-16 100
scheduler_ipi();
220d9122e8 arch/mips/netlogic/common/smp.c Jayachandran C 2013-01-14 101
set_c0_eimr(irq);
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 102 }
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 103
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 104
/*
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 105
* Called before going into mips code, early cpu init
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 106
*/
0c9654072a arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-11 107
void nlm_early_init_secondary(int cpu)
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 108 {
65040e224e arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-16 109
change_c0_config(CONF_CM_CMASK, 0x3);
65040e224e arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-16 110
#ifdef CONFIG_CPU_XLP
0c9654072a arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-11 111
xlp_mmu_init();
0c9654072a arch/mips/netlogic/common/smp.c Jayachandran C 2011-11-11 112
#endif
77ae798f5b arch/mips/netlogic/common/smp.c Jayachandran C 2012-10-31 113
write_c0_ebase(nlm_current_node()->ebase);
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 114 }
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 115
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 116
/*
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 117
* Code to run on secondary just after probing the CPU
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 118
*/
078a55fc82 arch/mips/netlogic/common/smp.c Paul Gortmaker 2013-06-18 119
static void nlm_init_secondary(void)
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 120 {
38541742da arch/mips/netlogic/common/smp.c Jayachandran C 2012-10-31 121
int hwtid;
38541742da arch/mips/netlogic/common/smp.c Jayachandran C 2012-10-31 122
38541742da arch/mips/netlogic/common/smp.c Jayachandran C 2012-10-31 123
hwtid = hard_smp_processor_id();
38541742da arch/mips/netlogic/common/smp.c Jayachandran C 2012-10-31 124
current_cpu_data.core = hwtid / NLM_THREADS_PER_CORE;
c273652546 arch/mips/netlogic/common/smp.c Jayachandran C 2015-01-07 125
current_cpu_data.package = nlm_nodeid();
ed21cfe207 arch/mips/netlogic/common/smp.c Ganesan Ramalingam 2012-10-31 126
nlm_percpu_init(hwtid);
38541742da arch/mips/netlogic/common/smp.c Jayachandran C 2012-10-31 127
nlm_smp_irq_init(hwtid);
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 128 }
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 129
b3ea581834 arch/mips/netlogic/common/smp.c Hillf Danton 2011-11-16 130
void nlm_prepare_cpus(unsigned int max_cpus)
b3ea581834 arch/mips/netlogic/common/smp.c Hillf Danton 2011-11-16 131 {
b3ea581834 arch/mips/netlogic/common/smp.c Hillf Danton 2011-11-16 132
/* declare we are SMT capable */
b3ea581834 arch/mips/netlogic/common/smp.c Hillf Danton 2011-11-16 133
smp_num_siblings = nlm_threads_per_core;
b3ea581834 arch/mips/netlogic/common/smp.c Hillf Danton 2011-11-16 134 }
b3ea581834 arch/mips/netlogic/common/smp.c Hillf Danton 2011-11-16 135
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 136
void nlm_smp_finish(void)
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 137 {
39263eeb44 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-06-07 138
local_irq_enable();
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 139 }
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 140
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 141
/*
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 142
* Boot all other cpus in the system, initialize them, and bring them into
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 143
* the boot function
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 144
*/
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 145
unsigned long nlm_next_gp;
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 146
unsigned long nlm_next_sp;
62b734d289 arch/mips/netlogic/common/smp.c Jayachandran C 2013-03-23 147
static cpumask_t phys_cpu_present_mask;
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 148
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 149
void nlm_boot_secondary(int logical_cpu, struct task_struct *idle)
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 150 {
c273652546 arch/mips/netlogic/common/smp.c Jayachandran C 2015-01-07 151
uint64_t picbase;
c273652546 arch/mips/netlogic/common/smp.c Jayachandran C 2015-01-07 152
int hwtid;
c273652546 arch/mips/netlogic/common/smp.c Jayachandran C 2015-01-07 153
c273652546 arch/mips/netlogic/common/smp.c Jayachandran C 2015-01-07 154
hwtid = cpu_logical_map(logical_cpu);
c273652546 arch/mips/netlogic/common/smp.c Jayachandran C 2015-01-07 155
picbase = nlm_get_node(nlm_hwtid_to_node(hwtid))->picbase;
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 156
77ae798f5b arch/mips/netlogic/common/smp.c Jayachandran C 2012-10-31 @157
nlm_next_sp = (unsigned long)__KSTK_TOS(idle);
77ae798f5b arch/mips/netlogic/common/smp.c Jayachandran C 2012-10-31 158
nlm_next_gp = (unsigned long)task_thread_info(idle);
5c64250674 arch/mips/netlogic/xlr/smp.c Jayachandran C 2011-05-07 159
77ae798f5b arch/mips/netlogic/common/smp.c Jayachandran C 2012-10-31 160
/* barrier for sp/gp store above */
:::::: The code at line 157 was first introduced by commit
:::::: 77ae798f5b736dfdc692b86b393d9699052ac77a MIPS: Netlogic: Support for
multi-chip configuration
:::::: TO: Jayachandran C <jchan...@broadcom.com>
:::::: CC: John Crispin <blo...@openwrt.org>
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