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use per-process wait queues for system call request processing in mcexec so that multiple processes can share the per-core system call channels

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This commit is contained in:
Balazs Gerofi bgerofi@riken.jp
2014-03-27 19:31:42 +09:00
parent 11ddbcf3c8
commit ccd770ba24
8 changed files with 138 additions and 16 deletions
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12
executer/kernel/ikc.c
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@@ -40,7 +40,7 @@
void mcexec_prepare_ack(ihk_os_t os, unsigned long arg, int err);
static void mcctrl_ikc_init(ihk_os_t os, int cpu, unsigned long rphys, struct ihk_ikc_channel_desc *c);
int mcexec_syscall(struct mcctrl_channel *c, unsigned long arg);
int mcexec_syscall(struct mcctrl_channel *c, int pid, unsigned long arg);
static int syscall_packet_handler(struct ihk_ikc_channel_desc *c,
void *__packet, void *__os)
@@ -62,7 +62,7 @@ static int syscall_packet_handler(struct ihk_ikc_channel_desc *c,
break;
case SCD_MSG_SYSCALL_ONESIDE:
mcexec_syscall(usrdata->channels + pisp->ref, pisp->arg);
mcexec_syscall(usrdata->channels + pisp->ref, pisp->pid, pisp->arg);
break;
}
@@ -219,7 +219,9 @@ static int connect_handler(struct ihk_ikc_channel_info *param)
return 1;
}
param->packet_handler = syscall_packet_handler;
init_waitqueue_head(&usrdata->channels[cpu].wq_syscall);
INIT_LIST_HEAD(&usrdata->channels[cpu].wq_list);
spin_lock_init(&usrdata->channels[cpu].wq_list_lock);
usrdata->channels[cpu].c = c;
kprintf("syscall: MC CPU %d connected. c=%p\n", cpu, c);
@@ -238,7 +240,9 @@ static int connect_handler2(struct ihk_ikc_channel_info *param)
cpu = usrdata->num_channels - 1;
param->packet_handler = syscall_packet_handler;
init_waitqueue_head(&usrdata->channels[cpu].wq_syscall);
INIT_LIST_HEAD(&usrdata->channels[cpu].wq_list);
spin_lock_init(&usrdata->channels[cpu].wq_list_lock);
usrdata->channels[cpu].c = c;
kprintf("syscall: MC CPU %d connected. c=%p\n", cpu, c);