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This commit is contained in:
Taku Shimosawa
2012-01-06 17:06:42 +09:00
parent 00107164b3
commit d2591c6d25
12 changed files with 244 additions and 73 deletions
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56
linux/mod_mcctrl/control.c
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@ -102,6 +102,8 @@ int mcexec_load_image(aal_os_t os, struct program_transfer *__user upt)
return 0;
}
extern unsigned long last_thread_exec;
static long mcexec_start_image(aal_os_t os,
struct program_load_desc * __user udesc)
{
@ -117,6 +119,8 @@ static long mcexec_start_image(aal_os_t os,
c = channels + desc.cpu;
mcctrl_ikc_set_recv_cpu(desc.cpu);
last_thread_exec = desc.cpu;
isp.msg = SCD_MSG_SCHEDULE_PROCESS;
isp.ref = desc.cpu;
@ -139,11 +143,14 @@ int mcexec_syscall(struct mcctrl_channel *c, unsigned long arg)
int __do_in_kernel_syscall(aal_os_t os, struct mcctrl_channel *c,
struct syscall_request *sc);
static int remaining_job, base_cpu, job_pos;
extern int num_channels;
int mcexec_wait_syscall(aal_os_t os, struct syscall_wait_desc *__user req)
{
struct syscall_wait_desc swd;
struct mcctrl_channel *c;
unsigned long s, w;
unsigned long s, w, d;
if (copy_from_user(&swd, req, sizeof(swd.cpu))) {
return -EFAULT;
@ -157,20 +164,38 @@ int mcexec_wait_syscall(aal_os_t os, struct syscall_wait_desc *__user req)
#else
while (1) {
rdtscll(s);
while (!(*c->param.doorbell_va)) {
mb();
cpu_relax();
rdtscll(w);
if (w > s + 1024 * 1024 * 1024 * 1) {
return -EINTR;
if (!remaining_job) {
while (!(*c->param.doorbell_va)) {
mb();
cpu_relax();
rdtscll(w);
if (w > s + 1024UL * 1024 * 1024 * 10) {
return -EINTR;
}
}
d = (*c->param.doorbell_va) - 1;
*c->param.doorbell_va = 0;
if (d < 0 || d >= num_channels) {
d = 0;
}
base_cpu = d;
job_pos = 0;
remaining_job = 1;
} else {
job_pos++;
}
*c->param.doorbell_va = 0;
printk("(%p) %ld SC %ld: %lx\n",
c->param.request_va,
c->param.request_va->valid,
c->param.request_va->number,
c->param.request_va->args[0]);
for (; job_pos < num_channels; job_pos++) {
if (base_cpu + job_pos >= num_channels) {
c = channels +
(base_cpu + job_pos - num_channels);
} else {
c = channels + base_cpu + job_pos;
}
if (c->param.request_va &&
c->param.request_va->valid) {
c->param.request_va->valid = 0; /* ack */
if (__do_in_kernel_syscall(os, c, c->param.request_va)) {
#endif
if (copy_to_user(&req->sr, c->param.request_va,
@ -178,8 +203,11 @@ int mcexec_wait_syscall(aal_os_t os, struct syscall_wait_desc *__user req)
return -EFAULT;
}
#ifndef DO_USER_MODE
break;
return 0;
}
}
}
remaining_job = 0;
}
#endif
return 0;