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This commit is contained in:
Taku Shimosawa
2011-12-02 12:35:38 +09:00
parent 5fdb3b2bb2
commit 7999653a00
18 changed files with 536 additions and 64 deletions
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61
kernel/syscall.c
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@@ -8,21 +8,36 @@
#include <cls.h>
#include <syscall.h>
#include <page.h>
#include <amemcpy.h>
int memcpy_async(unsigned long dest, unsigned long src,
unsigned long len, int wait, unsigned long *notify);
static void send_syscall(struct syscall_request *req)
{
struct ikc_scd_packet packet;
struct syscall_response *res = cpu_local_var(scp).response_va;
unsigned long fin;
res->status = 0;
/* TODO: copy by DMA */
memcpy_long(cpu_local_var(scp).request_va, req, sizeof(*req));
memcpy_async(cpu_local_var(scp).request_pa,
virt_to_phys(req), sizeof(*req), 0, &fin);
memcpy_async_wait(&cpu_local_var(scp).post_fin);
cpu_local_var(scp).post_va->v[0] = cpu_local_var(scp).post_idx;
memcpy_async_wait(&fin);
*(unsigned int *)cpu_local_var(scp).doorbell_va = 1;
#ifdef SYSCALL_BY_IKC
packet.msg = SCD_MSG_SYSCALL_ONESIDE;
packet.ref = aal_mc_get_processor_id();
packet.arg = cpu_local_var(scp).request_rpa;
aal_ikc_send(cpu_local_var(syscall_channel), &packet, 0);
aal_ikc_send(cpu_local_var(syscall_channel), &packet, 0);
#endif
}
static int do_syscall(struct syscall_request *req)
@@ -103,9 +118,7 @@ static int stop(void)
SYSCALL_DECLARE(open)
{
SYSCALL_HEADER;
SYSCALL_ARGS_3(MI, D, D);
SYSCALL_FOOTER;
}
@@ -169,10 +182,11 @@ SYSCALL_DECLARE(lseek)
SYSCALL_DECLARE(exit_group)
{
SYSCALL_HEADER;
send_syscall(&request);
do_syscall(&request);
cpu_local_var(current) = NULL;
free_process_memory(cpu_local_var(current));
cpu_local_var(next) = &cpu_local_var(idle);
schedule();
return 0;
@@ -308,3 +322,34 @@ long syscall(int num, aal_mc_user_context_t *ctx)
return -ENOSYS;
}
}
void __host_update_process_range(struct process *process,
struct vm_range *range)
{
struct syscall_post *post;
int idx;
memcpy_async_wait(&cpu_local_var(scp).post_fin);
post = &cpu_local_var(scp).post_buf;
post->v[0] = 1;
post->v[1] = range->start;
post->v[2] = range->end;
post->v[3] = range->phys;
cpu_disable_interrupt();
if (cpu_local_var(scp).post_idx >=
PAGE_SIZE / sizeof(struct syscall_post)) {
/* XXX: Wait until it is consumed */
} else {
idx = ++(cpu_local_var(scp).post_idx);
cpu_local_var(scp).post_fin = 0;
memcpy_async(cpu_local_var(scp).post_pa +
idx * sizeof(*post),
virt_to_phys(post), sizeof(*post), 0,
&cpu_local_var(scp).post_fin);
}
cpu_enable_interrupt();
}