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* uio: msm_sharedmem: add guard page around shared memorySahitya Tummala2018-08-16
| | | | | | | | | | | If guard_memory dtsi property is set, then the shared memory region will be guarded by SZ_4K at the start and at the end. This is needed to overcome the XPU limitation on few MSM HW, so as to make this memory not contiguous with other allocations that may possibly happen from other clients in the system. Change-Id: I57637619cea8fe7f0f7254624e07177ea4a4fce0 Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
* uio: Add snapshot of MSM sharedmem driverNikhilesh Reddy2016-03-22
This is a snapshot of the MSM sharedmem driver as of msm-3.14 commit: 149717c082aab8168283b7e0c23d8bd5a45b1999 ( uio: msm_sharedmem: Add custom mmap ) The following changes are included: 02d55287 uio: msm_sharedmem: Restrict debugfs write to root. de961fc7 uio: msm_sharedmem: Return ENOMEM if the shared mem addr is zero. b974ce64 uio: msm_sharedmem: Add addtional information to debugfs c46af547 uio: msm_sharedmem: Add support for dynamic shared memory allocation Change-Id: I49902f018bde1d59d41027b7e46268cc17231a3e Signed-off-by: Nikhilesh Reddy <reddyn@codeaurora.org>