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Connect a test producer pipe for MHI unit tests as the
default LAN_PROD pipe is not connected on MHI config.
Change-Id: I2fc1ff8758d222a738d570b5babc22ced2b43219
CRs-Fixed: 2066878
Acked-by: Ady Abraham <adya@qti.qualcomm.com>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
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Add a missing return statement in IPA MHI suspend routine.
Change-Id: I1dfbcff21ba3ca72ff985e76e851caf6a9da1ae4
CRs-Fixed: 2066866
Acked-by: Ady Abraham <adya@qti.qualcomm.com>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
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Add support to build msm kernel based virtual
machine.
CRs-Fixed: 2000635
Change-Id: I76f4920a86adc8bac347c1c6c360ef55f84bc453
Signed-off-by: Atul Raut <araut@codeaurora.org>
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In order to manage ringbuffer priority to its fullest userspace
should know how many ringbuffers it has to work with. Add a
parameter to return the number of active rings.
Change-Id: Ic0dedbada6010dd5122e8409141fd23b414d73e4
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
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Remove the queued time from the profile struct and turn the submit time
into a proper timespec (tv_sec + tv_nsec). This should sync up better
with what userspace is used to seeing.
Change-Id: Ic0dedbad0621fa248e6cffde2d1ee3f9b609e19d
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
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Record the GPU always on timer value at the start and end of a
submission on the ringbuffer. Since the timer runs at a constant
19.2 Mhz this is a handy way of tracking how long each
submission takes.
The timer values are recorded in the memptrs. Each ringbuffer is
given a circular list of 128 entries to store the event ticks;
this should be enough to avoid running out of room even when the
ring is completely full of submissions.
Add trace events for the user to track when submissions are
queued, submitted to the ringbuffer and retired. The submitted
trace point shows the GPU ticks and the current kernel time at
submit time (as read by the CPU) and the retired trace event shows
the GPU ticks at submission start/end as read by the GPU. Taken
together these two events can provide a pretty close match between
the current GPU time and the kernel time which is handy for tracing
tools that try to match up the various kernel events with one
another.
Change-Id: Ic0dedbadbcf89f032890820785b9fb49a6362b01
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
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msm8998"
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A negative sleep time could be interpreted as a large positive sleep
time when its casted to a unsigned type. This could result in CPU sleeping
for a longer than expected duration resulting in missed interrupts.
Change-Id: I472f355c8ba392ab46d53fceddb448f7e35c178e
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Signed-off-by: Naresh Malladi <namall@codeaurora.org>
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This is required to add a PM QOS request to disallow L2PC on masked CPUS.
It improves queue to submit time for first set of GPU commands
which results in GPU wake up.
Change-Id: If7e0925ec76065158188671f1d11a0de5e9900aa
Signed-off-by: Gaurav Sonwani <gsonwani@codeaurora.org>
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Removed a local variable in mmc_start_req() which was used to store the
error encountered while starting a new data request. If an error is
encountered while starting a new request, the error
information is stored in the mrq. The error information stored in the
mrq is during error handling. So removing the unused variable.
Change-Id: Ifeedc91433230d5156d286bd332a85fb221188ac
Signed-off-by: Vijay Viswanath <vviswana@codeaurora.org>
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Add state check before execute CCI function.
Change-Id: I1c876e4eac70316bfe322b11f807e367c020e7d0
Signed-off-by: Wei Ding <weiding@codeaurora.org>
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Fix ordering of link creation between node->prev and prev->next in
osq_lock(). A case in which the status of optimistic spin queue is
CPU6->CPU2 in which CPU6 has acquired the lock. At this point if CPU0
comes in to acquire osq_lock, it will update the tail count. After tail
count update if CPU2 starts to unqueue itself from optimistic spin queue,
it will find updated tail count with CPU0 and update CPU2 node->next to
NULL in osq_wait_next(). If reordering of following stores happen then
prev->next where prev being CPU2 would be updated to point to CPU0 node:
node->prev = prev;
WRITE_ONCE(prev->next, node);
At this point if next instruction
WRITE_ONCE(next->prev, prev);
in CPU2 path is committed before the update of CPU0 node->prev = prev then
CPU0 node->prev will point to CPU6 node. At this point if CPU0 path's
node->prev = prev is committed resulting in change of CPU0 prev back to
CPU2 node. CPU2 node->next is NULL currently, so if CPU0 gets into unqueue
path of osq_lock it will keep spinning in infinite loop as condition
prev->next == node will never be true.
Change-Id: I48d847096daf3c228de90ae1cd2a6415b7bde65a
Signed-off-by: Prateek Sood <prsood@codeaurora.org>
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The legacy detection workaround change restricts DCP to 1.5A draw,
regardless of legacy/non-legacy type. This was to prevent a legacy
(non-compliant) cable, incorrectly detected as non-legacy cable from
drawing more than 1.5A.
The issue with legacy bit is that hardware could end up reporting
non-legacy for a legacy cable (not the other way round). We want to
ensure that for non-compliant legacy cable SDP/CDP current limits
are honoured and that for a Rp = 10k legacy cable VBUS shouldn't go
higher than 5V.
This cap of 1.5A on DCP is not necessary. Moreover AICL will limit the
current if needed.
To realize this force the Rp based current whenever DCP or float
is seen via the LEGACY_UNKNOWN_VOTER. LEGACY_UNKNOWN_VOTER is not
removed unless a confirmed hvdcp or pd is seen.
Change-Id: I89505e9db4f045aaf71ab0ee534de783ea4d2df3
Signed-off-by: Ashay Jaiswal <ashayj@codeaurora.org>
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
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Excessive logging due to several successive memory allocation failure
may cause a watchdog bite. Hence, this change adds ratelimit to logging
on memory allocation failure.
Change-Id: I8e5d78918a32c48ef7fa587f3dc63cbd1f065d5f
Signed-off-by: Deepak Kumar <dkumar@codeaurora.org>
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The pointer req_frm is coming from userspace, it may overflow stream_info.
Adding a bound check to prevent the same.
CRs-fixed: 2008683
Change-Id: I8682e09ff2ab7ba490bbbd9e20db978493c5f3e4
Signed-off-by: Senthil Kumar Rajagopal <skrajago@codeaurora.org>
Signed-off-by: Andy Sun <bins@codeaurora.org>
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Live Lock due to task spinning while unqueue of CPU osq_node
from optimistic_spin_queue. Task T1 had decremented mutex count to
acquire the lock on CPU0. Before setting owner it got preempted. On
CPU1 task T2 acquired osq_lock and started spinning on owner of mutex
with preemption disabled. CPU1 runq has one task, so need_resched will
not be set. On CPU0 task T3 tried to acquire osq_lock to spin on the
same mutex. At this time following scenario causes soft lockup:
After preemption of task T1, RT task T3 tried to acquire the same
mutex. It will start spinning on the osq_lock until the lock is available
or need_resched is set. For RT task, need_resched will not be set. Task T3
will not be able to bail out of the infinite loop.
Change-Id: Ifd7506047119a22e14b15459ac6b04b410ba1c84
Signed-off-by: Prateek Sood <prsood@codeaurora.org>
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Conntrack, if enabled, verifies complete checksum on all tcp
packets. If a packet is corrupted, it sets ip_summed field
to CHECKSUM_COMPLETE and checksum valid field to false.
With these changes such packet will be dropped.
Packets that are corrupted can go into userspace even when
the checksum is wrong. The io_vec library pushes the data into
pipe before checking the checksum. If the checksum is wrong,
the copied data is not reverted. Users observe corrupted data
in the application memory due to such corrupted packets.
This fix is to plug one such hole.
This change might be redundant on kernels after v4.9.
Change-Id: Iffface598d0fa2b25fb9c20c7aa6443aab9d8aea
Signed-off-by: Tejaswi Tanikella <tejaswit@codeaurora.org>
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