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authorJakub Kicinski <[email protected]>2023-06-08 18:34:28 +0000
committerJakub Kicinski <[email protected]>2023-06-08 18:35:14 +0000
commit449f6bc17a51e68b06cfd742898e5ff3fe6e04d7 (patch)
treeed59929e7d1fa057ac6998075986a4cdfb85eb5a /drivers/misc/fastrpc.c
parentMerge branch 'crypto-splice-net-make-af_alg-handle-sendmsg-msg_splice_pages' (diff)
parentMerge tag 'net-6.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netd... (diff)
downloadkernel-449f6bc17a51e68b06cfd742898e5ff3fe6e04d7.tar.gz
kernel-449f6bc17a51e68b06cfd742898e5ff3fe6e04d7.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: net/sched/sch_taprio.c d636fc5dd692 ("net: sched: add rcu annotations around qdisc->qdisc_sleeping") dced11ef84fb ("net/sched: taprio: don't overwrite "sch" variable in taprio_dump_class_stats()") net/ipv4/sysctl_net_ipv4.c e209fee4118f ("net/ipv4: ping_group_range: allow GID from 2147483648 to 4294967294") ccce324dabfe ("tcp: make the first N SYN RTO backoffs linear") https://lore.kernel.org/all/[email protected]/ No adjacent changes. Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'drivers/misc/fastrpc.c')
-rw-r--r--drivers/misc/fastrpc.c31
1 files changed, 23 insertions, 8 deletions
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index f48466960f1b..30d4d0476248 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -316,12 +316,14 @@ static void fastrpc_free_map(struct kref *ref)
if (map->table) {
if (map->attr & FASTRPC_ATTR_SECUREMAP) {
struct qcom_scm_vmperm perm;
+ int vmid = map->fl->cctx->vmperms[0].vmid;
+ u64 src_perms = BIT(QCOM_SCM_VMID_HLOS) | BIT(vmid);
int err = 0;
perm.vmid = QCOM_SCM_VMID_HLOS;
perm.perm = QCOM_SCM_PERM_RWX;
err = qcom_scm_assign_mem(map->phys, map->size,
- &map->fl->cctx->perms, &perm, 1);
+ &src_perms, &perm, 1);
if (err) {
dev_err(map->fl->sctx->dev, "Failed to assign memory phys 0x%llx size 0x%llx err %d",
map->phys, map->size, err);
@@ -787,8 +789,12 @@ static int fastrpc_map_create(struct fastrpc_user *fl, int fd,
goto map_err;
}
- map->phys = sg_dma_address(map->table->sgl);
- map->phys += ((u64)fl->sctx->sid << 32);
+ if (attr & FASTRPC_ATTR_SECUREMAP) {
+ map->phys = sg_phys(map->table->sgl);
+ } else {
+ map->phys = sg_dma_address(map->table->sgl);
+ map->phys += ((u64)fl->sctx->sid << 32);
+ }
map->size = len;
map->va = sg_virt(map->table->sgl);
map->len = len;
@@ -798,9 +804,15 @@ static int fastrpc_map_create(struct fastrpc_user *fl, int fd,
* If subsystem VMIDs are defined in DTSI, then do
* hyp_assign from HLOS to those VM(s)
*/
+ u64 src_perms = BIT(QCOM_SCM_VMID_HLOS);
+ struct qcom_scm_vmperm dst_perms[2] = {0};
+
+ dst_perms[0].vmid = QCOM_SCM_VMID_HLOS;
+ dst_perms[0].perm = QCOM_SCM_PERM_RW;
+ dst_perms[1].vmid = fl->cctx->vmperms[0].vmid;
+ dst_perms[1].perm = QCOM_SCM_PERM_RWX;
map->attr = attr;
- err = qcom_scm_assign_mem(map->phys, (u64)map->size, &fl->cctx->perms,
- fl->cctx->vmperms, fl->cctx->vmcount);
+ err = qcom_scm_assign_mem(map->phys, (u64)map->size, &src_perms, dst_perms, 2);
if (err) {
dev_err(sess->dev, "Failed to assign memory with phys 0x%llx size 0x%llx err %d",
map->phys, map->size, err);
@@ -1892,7 +1904,7 @@ static int fastrpc_req_mmap(struct fastrpc_user *fl, char __user *argp)
req.vaddrout = rsp_msg.vaddr;
/* Add memory to static PD pool, protection thru hypervisor */
- if (req.flags != ADSP_MMAP_REMOTE_HEAP_ADDR && fl->cctx->vmcount) {
+ if (req.flags == ADSP_MMAP_REMOTE_HEAP_ADDR && fl->cctx->vmcount) {
struct qcom_scm_vmperm perm;
perm.vmid = QCOM_SCM_VMID_HLOS;
@@ -2337,8 +2349,10 @@ static void fastrpc_notify_users(struct fastrpc_user *user)
struct fastrpc_invoke_ctx *ctx;
spin_lock(&user->lock);
- list_for_each_entry(ctx, &user->pending, node)
+ list_for_each_entry(ctx, &user->pending, node) {
+ ctx->retval = -EPIPE;
complete(&ctx->work);
+ }
spin_unlock(&user->lock);
}
@@ -2349,7 +2363,9 @@ static void fastrpc_rpmsg_remove(struct rpmsg_device *rpdev)
struct fastrpc_user *user;
unsigned long flags;
+ /* No invocations past this point */
spin_lock_irqsave(&cctx->lock, flags);
+ cctx->rpdev = NULL;
list_for_each_entry(user, &cctx->users, user)
fastrpc_notify_users(user);
spin_unlock_irqrestore(&cctx->lock, flags);
@@ -2368,7 +2384,6 @@ static void fastrpc_rpmsg_remove(struct rpmsg_device *rpdev)
of_platform_depopulate(&rpdev->dev);
- cctx->rpdev = NULL;
fastrpc_channel_ctx_put(cctx);
}