A function to free the shared RAM section has been added to the
msm_sharedmem driver. This function is needed to free the RAM section
on shutdown of the msm_sharedmem driver. The function is called on
the shutdown command for the driver.
Change-Id: Iff04f93d380664c5e3df9b0cd575cf9e6300ea39
Signed-off-by: Anant Goel <anantg@codeaurora.org>
The variable debug_buffer is a global variable which is allocated
and free'd when open/close is called on debugfs file -
"/sys/kernel/debug/rmt_storage/info". The current code doesn't
have locks to handle concurrent accesses to the above file.
This results into use after free issue when debug_buffer is
accessed by two threads at the same time. Fix this by adding
a mutex lock to protect this global variable.
Change-Id: I6bc3f0ae2d7fca3ca9fe8561612f5863b6c3268a
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Use proper printk format specifier to print phys_addr_t
type variable.
Change-Id: I7c55e44e813d8d41e1ead03280044c8542a24922
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
Add support for HYP call to setup the sharedmem permissions
for the MPSS client.
Change-Id: I3b48ae962865d8d0a0ea6e3fbb8e21278b59c690
Signed-off-by: Nikhilesh Reddy <reddyn@codeaurora.org>
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>
