Santosh Sakore e696574fb5 msm: adsprpc: block smmu unmap of buffer used in pending rpc call ...

A dynamic SMMU mapping created as part of an RPC call can potentially
be removed by a parallel munmap ioctl call before the RPC call is
complete, leading to SMMU faults.

Maintain a ref-count that indicates that the mapping is being used by
a pending RPC call and allow the mapping to be removed only if this
count is 0.

Change-Id: Ieb4ff6b298ff9c48953bc5b3539fdfe19a14b442
Acked-by: Santosh Sakore <ssakore@qti.qualcomm.com>
Signed-off-by: Santosh Sakore <quic_ssakore@quicinc.com>

2023-05-28 22:57:55 -07:00

..

adsprpc_compat.c

msm: adsprpc: To avoid null pointer dereference

2023-01-31 23:44:36 -08:00

adsprpc_compat.h

adsprpc: Add initial src files to new target

2022-08-12 17:41:38 -07:00

adsprpc_rpmsg.c

adsprpc: Enable fastrpc trusted driver

2023-03-16 14:14:25 -07:00

adsprpc_shared.h

msm: adsprpc: block smmu unmap of buffer used in pending rpc call

2023-05-28 22:57:55 -07:00

adsprpc_socket.c

adsprpc: tvm: wakeup waiting rpc calls when secure PD exits

2023-05-25 13:29:06 -07:00

adsprpc.c

msm: adsprpc: block smmu unmap of buffer used in pending rpc call

2023-05-28 22:57:55 -07:00

cdsp-loader.c

dsp-kernel: dsp: Update CDSP state flag after image unloading

2023-02-28 11:57:11 +05:30

fastrpc_trace.h

msm: adsprpc: Use memcpy for trace events in LE

2023-04-18 17:25:46 -07:00