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HFI1: add a bunch of fields to hfi1_devdata and hfi1_filedata for receive TID handling, do necessary mappings in hfi1_map_device_addresses()

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This commit is contained in:
Balazs Gerofi
2017-12-05 17:04:28 +09:00
parent e2e773d883
commit 521e0dc707
5 changed files with 87 additions and 6 deletions
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54
kernel/user_sdma.c
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@ -789,6 +789,60 @@ int hfi1_map_device_addresses(struct hfi1_filedata *fd)
proc->hfi1_cq_comps_len = len;
}
if (proc->hfi1_events != dd->events) {
void *hfi1_events = dd->events;
len = (dd->chip_rcv_contexts * HFI1_MAX_SHARED_CTXTS *
sizeof(*dd->events) + PAGE_SIZE - 1) & PAGE_MASK;
/*
* Events are in Linux vmalloc area, we need to
* resolve physical addresses by looking at Linux
* page tables.
*/
for (virt = hfi1_events; virt < hfi1_events + len;
virt += PAGE_SIZE) {
lptep = ihk_mc_pt_lookup_pte(ihk_mc_get_linux_kernel_pgt(),
virt, 0, 0, 0, 0);
if (!lptep && !pte_is_present(lptep)) {
kprintf("%s: ERROR: no mapping in Linux for events: 0x%lx?\n",
__FUNCTION__, virt);
ret = -1;
goto unlock_out;
}
phys = pte_get_phys(lptep);
if (ihk_mc_pt_set_page(vm->address_space->page_table,
virt, phys, attr) < 0) {
kprintf("%s: ERROR: failed to map events: 0x%lx -> 0x%lx\n",
__FUNCTION__, virt, phys);
ret = -1;
goto unlock_out;
}
ptep = ihk_mc_pt_lookup_pte(vm->address_space->page_table,
virt, 0, 0, 0, 0);
if (!ptep && !pte_is_present(ptep)) {
kprintf("%s: ERROR: no mapping in McKernel for events: 0x%lx?\n",
__FUNCTION__, virt);
ret = -1;
goto unlock_out;
}
*ptep = *lptep;
}
dkprintf("%s: hfi1_events: 0x%lx - 0x%lx\n",
__FUNCTION__,
hfi1_events,
hfi1_events + len);
//ihk_mc_pt_print_pte(vm->address_space->page_table, hfi1_events);
proc->hfi1_events = hfi1_events;
}
flush_tlb();
unlock_out:
ihk_mc_spinlock_unlock(&proc->hfi1_lock, irqstate);