gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mcctrl: convert send_signal to mcctrl_ihk_send_wait

Browse Source 
Change-Id: Ibd2fc834444d83341a96579f0c9c22080a53e8fa
This commit is contained in:
Dominique Martinet
2018-06-29 19:05:58 +09:00
parent ab8fe0bbbf
commit 854bc85602
5 changed files with 33 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
executer/kernel/mcctrl/control.c
View File

@ -476,25 +476,33 @@ out:
static DECLARE_WAIT_QUEUE_HEAD(signalq);
struct mcctrl_signal_desc {
struct mcctrl_signal msig;
struct mcctrl_wakeup_desc wakeup;
void *addrs[1];
};
static long mcexec_send_signal(ihk_os_t os, struct signal_desc *sigparam)
{
struct ikc_scd_packet isp;
struct mcctrl_channel *c;
struct mcctrl_usrdata *usrdata = ihk_host_os_get_usrdata(os);
struct signal_desc sig;
struct mcctrl_signal msig[2];
struct mcctrl_signal_desc *desc;
struct mcctrl_signal *msigp;
int rc;
int rc, do_free;
if (copy_from_user(&sig, sigparam, sizeof(struct signal_desc))) {
return -EFAULT;
}
msigp = msig;
if(((unsigned long)msig & 0xfffffffffffff000L) !=
((unsigned long)(msig + 1) & 0xfffffffffffff000L))
msigp++;
memset(msigp, '\0', sizeof msig);
desc = kmalloc(sizeof(*desc), GFP_KERNEL);
if (!desc) {
return -ENOMEM;
}
msigp = &desc->msig;
memset(msigp, '\0', sizeof(*msigp));
msigp->sig = sig.sig;
msigp->pid = sig.pid;
msigp->tid = sig.tid;
@ -506,25 +514,19 @@ static long mcexec_send_signal(ihk_os_t os, struct signal_desc *sigparam)
isp.pid = sig.pid;
isp.arg = virt_to_phys(msigp);
if ((rc = mcctrl_ikc_send(os, sig.cpu, &isp)) < 0) {
rc = mcctrl_ikc_send_wait(os, sig.cpu, &isp, 0, &desc->wakeup,
&do_free, 1, desc);
if (rc < 0) {
printk("mcexec_send_signal: mcctrl_ikc_send ret=%d\n", rc);
if (do_free)
kfree(desc);
return rc;
}
wait_event_interruptible(signalq, msigp->cond != 0);
kfree(desc);
return 0;
}
void
sig_done(unsigned long arg, int err)
{
struct mcctrl_signal *msigp;
msigp = phys_to_virt(arg);
msigp->cond = 1;
wake_up_interruptible(&signalq);
}
static long mcexec_get_cpu(ihk_os_t os)
{
struct ihk_cpu_info *info;