A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-10 06:09:23 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge "msm: ipa3: Fix to unmap sgt pages with correct size"

Browse source
This commit is contained in:
qctecmdr 2020-10-09 12:49:33 -07:00 • committed by Gerrit - the friendly Code Review server
commit 222ef78f75
1 changed files with 27 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

35
drivers/platform/msm/ipa/ipa_v3/ipa_client.c
View file

@ -420,14 +420,33 @@ int ipa3_smmu_map_peer_buff(u64 iova, u32 size, bool map, struct sg_table *sgt,
}
}
} else {
res = iommu_unmap(smmu_domain,
rounddown(iova, PAGE_SIZE),
roundup(size + iova - rounddown(iova, PAGE_SIZE),
PAGE_SIZE));
if (res != roundup(size + iova - rounddown(iova, PAGE_SIZE),
PAGE_SIZE)) {
IPAERR("Fail to unmap 0x%llx\n", iova);
return -EINVAL;
if (sgt != NULL) {
va = rounddown(iova, PAGE_SIZE);
len = 0;
for_each_sg(sgt->sgl, sg, sgt->nents, i) {
len = PAGE_ALIGN(sg->offset + sg->length);
res = iommu_unmap(smmu_domain, va,
roundup(len, PAGE_SIZE));
if (res !=
roundup(len, PAGE_SIZE)) {
IPAERR("Fail to unmap iova=%llx\n",
iova);
return -EINVAL;
}
va += len;
count++;
}
} else {
res = iommu_unmap(smmu_domain,
rounddown(iova, PAGE_SIZE),
roundup(size + iova -
rounddown(iova, PAGE_SIZE),
PAGE_SIZE));
if (res != roundup(size + iova -
rounddown(iova, PAGE_SIZE), PAGE_SIZE)) {
IPAERR("Fail to unmap 0x%llx\n", iova);
return -EINVAL;
}
}
}
IPADBG("Peer buff %s 0x%llx\n", map ? "map" : "unmap", iova);