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MM: straight mapping

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Change-Id: I70871f8c382fb00aa719ed501cc5de436d916d7f
This commit is contained in:
Balazs Gerofi
2020-05-27 13:54:04 +09:00
committed by Masamichi Takagi
parent 100bbe6231
commit 201f5ce500
13 changed files with 385 additions and 21 deletions
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40
kernel/xpmem.c
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@@ -1919,21 +1919,35 @@ static int xpmem_remap_pte(
goto out;
}
seg_pte = ihk_mc_pt_lookup_pte(seg_tg->vm->address_space->page_table,
(void *)seg_vaddr, seg_vmr->pgshift, &seg_pgaddr, &seg_pgsize,
&seg_p2align);
if (!seg_pte) {
ret = -EFAULT;
ekprintf("%s: ERROR: ihk_mc_pt_lookup_pte() failed\n",
__FUNCTION__);
goto out;
if (seg_tg->vm->proc->straight_va &&
seg_vaddr >= (unsigned long)seg_tg->vm->proc->straight_va &&
seg_vaddr < ((unsigned long)seg_tg->vm->proc->straight_va +
seg_tg->vm->proc->straight_len)) {
seg_phys = (((unsigned long)seg_vaddr & PAGE_MASK) -
(unsigned long)seg_tg->vm->proc->straight_va) +
seg_tg->vm->proc->straight_pa;
dkprintf("%s: 0x%lx in PID %d is straight -> phys: 0x%lx\n",
__func__, (unsigned long)seg_vaddr & PAGE_MASK,
seg_tg->tgid, seg_phys);
}
XPMEM_DEBUG("seg_pte=0x%016lx, seg_pgaddr=0x%p, seg_pgsize=%lu, "
"seg_p2align=%d",
*seg_pte, seg_pgaddr, seg_pgsize, seg_p2align);
else {
seg_phys = pte_get_phys(seg_pte);
XPMEM_DEBUG("seg_phys=0x%lx", seg_phys);
seg_pte = ihk_mc_pt_lookup_pte(seg_tg->vm->address_space->page_table,
(void *)seg_vaddr, seg_vmr->pgshift, &seg_pgaddr, &seg_pgsize,
&seg_p2align);
if (!seg_pte) {
ret = -EFAULT;
ekprintf("%s: ERROR: ihk_mc_pt_lookup_pte() failed\n",
__FUNCTION__);
goto out;
}
XPMEM_DEBUG("seg_pte=0x%016lx, seg_pgaddr=0x%p, seg_pgsize=%lu, "
"seg_p2align=%d",
*seg_pte, seg_pgaddr, seg_pgsize, seg_p2align);
seg_phys = pte_get_phys(seg_pte);
XPMEM_DEBUG("seg_phys=0x%lx", seg_phys);
}
att_pte = ihk_mc_pt_lookup_pte(vm->address_space->page_table,
(void *)vaddr, vmr->pgshift, &att_pgaddr, &att_pgsize,