Extract out the HAL ops' implementation that now belongs to the channel
unit. This unit is responsible for channel register accesses and the
like (ccsr_*).
Rename channel_gm20b_bind to gm20b_fifo_channel_bind to match with the
rest of the naming. Same with channel_gv11b_unbind.
Jira NVGPU-1307
Change-Id: I58b9d96dbdaf36bdb163a5729544a41faec828ab
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2017262
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sema cmdbuf specific functions are only for the sync functionality
of nvgpu and donot belong to fifo.
construct files sema_cmdbuf_gv11b.h and sema_cmdbuf_gv11b.c
under common/sync to contain the syncpt specific cmdbuf functions
for arch gv11b.
Jira NVGPU-1308
Change-Id: I440847e8b996e0956d81fe6cdde331937deda40e
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1975923
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Syncpt cmdbuf specific functions are only for the sync functionality
of nvgpu and do not belong to fifo.
Construct files syncpt_cmdbuf_gv11b.h and syncpt_cmdbuf_gv11b.c under
common/sync to contain the syncpt specific cmdbuf functions for arch gv11b.
The word 'fifo' is also removed from the name of these functions.
Jira NVGPU-1308
Change-Id: I4253fd04b5f2ae48611ea501a9abf2b0e42a2c0e
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1975921
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MISRA rule 10.1 prohibits using signed values with bitwise operators.
Make fifo invalid ID macros compliant with this MISRA rule.
Also use these macros in source code instead of hardcoded numbers to
make the code more readable.
JIRA NVGPU-1006
Change-Id: I2f336d1decbc53b08f93587f2e00ea2cce47f72b
Signed-off-by: Adeel Raza <araza@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1983700
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preempt_channel needs to use the channel to pass it to other
public functions, get access to a tsg etc. This qualifies it to take a
pointer to a channel as an input parameter instead of a chid.
Increment the channel ref counter using the function
gk20a_channel_from_id in functions where we get the chid from the h/w
registers directly. Once the prempt_channel function call is done,
use a gk20a_channel_put on the referenced channel.
Jira NVGPU-1461
Change-Id: I6c87c8104cfcb418d468c8c590087fd4aeabf4bd
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1963200
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gv11b_fifo_preempt_tsg needs to access the runlist_id of the tsg as
well as pass the tsg pointer to other public functions such as
gk20a_fifo_disable_tsg_sched. This qualifies the preempt_tsg to use a
pointer to a struct tsg_gk20a instead of just using the tsgid.
Jira NVGPU-1461
Change-Id: I01fbd2370b5746c2a597a0351e0301b0f7d25175
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1959068
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MISRA Rule 10.4 only allows the usage of arithmetic operations on
operands of the same essential type category.
Adding "U" at the end of the integer literals to have same type of
operands when an arithmetic operation is performed.
This fixes violations where an arithmetic operation is performed on
signed and unsigned int types.
JIRA NVGPU-992
Change-Id: I4f2d2b960b705690d5d23d2945816fd8f3f8fb75
Signed-off-by: Sai Nikhil <snikhil@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1831885
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Adeel Raza <araza@nvidia.com>
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Add a fifo HAL for querying the doorbell token of a specific channel and
call it instead of doing the calculation directly. For Volta the token
is just the channel id plus the possible base number.
Bug 200145225
Change-Id: Ifbb150191575fdc72e413a14c799cab7e52d8c14
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1849639
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Reduce the size of memory allocations in the channel debug dump by
capturing only the necessary values from the instance block. This also
simplifies the allocation path slightly with the downside of having to
add a capture_channel_ram_dump HAL for reading the interesting parts
explicitly beforehand to the now smaller staging buffer.
Also rename struct ch_state to struct nvgpu_channel_dump_info.
Jira NVGPU-886
Change-Id: I5d7518d9d474b0b728b183383bc83d89ecf91b98
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1928207
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-During teardown issue runlist preempt
-preempt_ch_tsg hal is removed as it is no more required.
This hal was added to be called from teardown so that if
there is preempt timeout, preempt timeout recovery is not
triggered.
Bug 200426402
Change-Id: I679e3306aa890ff0cfa211cfcc7d5405b7cb1211
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1775443
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This reverts commit 0b02c8589d.
Originally change was reverted as it was making ap_compute test on
embedded-qnx-hv e3550-t194 fail. With fixes related to replacing tsg
preempt with runlist preempt during teardown, preempt timeout set to
100 ms (earlier this was set to 1000ms for t194 and 3000ms for legacy
chips) and not issuing preempt timeout recovery if preempt fails, helped
resolve the issue.
Bug 200426402
Change-Id: If9a68d028a155075444cc1bdf411057e3388d48e
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1762563
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-Add support for aborting runlist/s. Aborting runlist/s,
will abort all active tsgs and associated active channels
within these active tsgs
-Bare channels are no longer supported. Remove recovery
support for bare channels. In case there are bare
channels, recovery will trigger runlist abort
Bug 2125776
Bug 2108544
Bug 2105322
Bug 2092051
Bug 2048824
Bug 2043838
Bug 2039587
Bug 2028993
Bug 2029245
Bug 2065990
Bug 1945121
Bug 200401707
Bug 200393631
Bug 200327596
Change-Id: I6bec8a0004508cf65ea128bf641a26bf4c2f236d
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1640567
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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-is_preempt_pending hal does not need timeout_rc_type input param as
for volta, reset_eng_bitmask is saved if preempt times out. For
legacy chips, recovery triggers mmu fault and mmu fault handler
takes care of resetting engines.
-For volta, no special input param needed to differentiate between
preempt polling during normal scenario and preempt polling during
recovery. Recovery path uses preempt_ch_tsg hal to issue preempt.
This hal does not issue recovery if preempt times out.
Bug 2125776
Bug 2108544
Bug 2105322
Bug 2092051
Bug 2048824
Bug 2043838
Bug 2039587
Bug 2028993
Bug 2029245
Bug 2065990
Bug 1945121
Bug 200401707
Bug 200393631
Bug 200327596
Change-Id: Ie76a18ae0be880cfbeee615859a08179fb974fa8
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1709799
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For Si platforms, gk20a_get_gr_idle_timeout returns
3000 ms i.e. 3 sec. Currently this time is used for
polling each pbdma, eng and runlist and this conflicts
channel timeout if preempt fails.
Use 1000 ms timeout for polling preempt timeout when
timeouts are enabled else use gk20a_get_gr_idle_timeout.
For non-si platforms, polling loop is depending on
max number of retries.
Bug 2125776
Bug 2108544
Bug 2105322
Bug 2092051
Bug 2048824
Bug 2043838
Bug 2039587
Bug 2028993
Bug 2029245
Bug 2065990
Bug 1945121
Bug 200401707
Bug 200393631
Bug 200327596
Change-Id: Icdb69b7b7d17292f2b6a43f1d8e9d75ff545d0ae
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1739543
Reviewed-by: Automatic_Commit_Validation_User
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-During polling eng preempt done, reset eng only if eng stall
intr is pending. Also stop polling for eng preempt done
if eng intr is pending.
-Add max retries for pre-si platforms for poll pbdma and eng
preempt done polling loops.
Bug 2125776
Bug 2108544
Bug 2105322
Bug 2092051
Bug 2048824
Bug 2043838
Bug 2039587
Bug 2028993
Bug 2029245
Bug 2065990
Bug 1945121
Bug 200401707
Bug 200393631
Bug 200327596
Change-Id: I66b07be9647f141bd03801f83e3cda797e88272f
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1694137
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Add NVGPU_IOCTL_CHANNEL_RESCHEDULE_RUNLIST ioctl to reschedule runlist,
and optionally check host and FECS status to preempt pending load of
context not belonging to the calling channel on GR engine during context
switch.
This should be called immediately after a submit to decrease worst case
submit to start latency for high interleave channel.
There is less than 0.002% chance that the ioctl blocks up to couple
miliseconds due to race condition of FECS status changing while being read.
For GV11B it will always preempt pending load of unwanted context since
there is no chance that ioctl blocks due to race condition.
Also fix bug with host reschedule for multiple runlists which needs to
write both runlist registers.
Bug 1987640
Bug 1924808
Change-Id: I0b7e2f91bd18b0b20928e5a3311b9426b1bf1848
Signed-off-by: David Li <davli@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1549050
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Semaphore methods currently being used in Volta are deprecated for future chips
And on Volta we support both old and new methods
So replace old methods by new methods on Volta itself so that new methods
get tested on silicon
Implement below HALs for Volta with new semaphore methods
gops.fifo.add_sema_cmd() to insert HOST semaphore acquire/release methods
gops.fifo.get_sema_wait_cmd_size() to get size of acquire command buffer
gops.fifo.get_sema_incr_cmd_size() to get size of release command buffer
Also use new methods in these APIs
gv11b_fifo_add_syncpt_wait_cmd()
gv11b_fifo_add_syncpt_incr_cmd()
And change corresponding APIs to reflect correct size of command buffer
gv11b_fifo_get_syncpt_wait_cmd_size()
gv11b_fifo_get_syncpt_incr_cmd_size()
Jira NVGPUT-16
Change-Id: Ia3a37cd0560ddb54761dfea9bd28c4384cd8a11c
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1704518
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Add User space API NVGPU_AS_IOCTL_GET_SYNC_RO_MAP to get read-only syncpoint
address map in user space
We already map whole syncpoint shim to each address space with base address
being vm->syncpt_ro_map_gpu_va
This new API exposes this base GPU_VA address of syncpoint map, and unit size
of each syncpoint to user space.
User space can then calculate address of each syncpoint as
syncpoint_address = base_gpu_va + (syncpoint_id * syncpoint_unit_size)
Note that this syncpoint address is read_only, and should be only used for
inserting semaphore acquires.
Adding semaphore release with this address would result in MMU_FAULT
Define new HAL g->ops.fifo.get_sync_ro_map and set this for all GPUs supported
on Xavier SoC
Bug 200327559
Change-Id: Ica0db48fc28fdd0ff2a5eb09574dac843dc5e4fd
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1649365
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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Add new API gv11b_fifo_tsg_verify_status_faulted() and use that as
g->ops.fifo.tsg_verify_status_faulted operation for gv11b/gv100
This API will check if channel has ENG_FAULTED status set, if yes it will clear
CE method buffer in case saved out channel is same as faulted channel
We need to write 0 to method count to invalidate CE method buffer
Also set g->ops.fifo.tsg_verify_status_ctx_reload operation for gv11b/gv100
Bug 200327095
Change-Id: I9d2b0f13faf881b30680219bbcadfd4969c4dff6
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1560643
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Add TSG enable/disable operations for gv11b/gv100
To disable a TSG we continue to use gk20a_disable_tsg()
To enable a TSG add new API gv11b_fifo_enable_tsg() since TSG enable sequence is
different for Volta than previous versions
For Volta it is sufficient to loop over all the channels in TSG and enable them
sequentially
Bug 1739362
Change-Id: Id4b4684959204c6101ceda83487a41fbfcba8b5f
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1560642
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Automatic_Commit_Validation_User
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Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reorganize HAL initialization to remove inheritance and construct
the gpu_ops struct at compile time. This patch only covers the fifo
sub-module of the gpu_ops struct.
Perform HAL function assignments in hal_gxxxx.c through the
population of a chip-specific copy of gpu_ops.
Jira NVGPU-74
Change-Id: I7c81edfa785a4ecafef41aae7b82d6b1707d294e
Signed-off-by: Sunny He <suhe@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1522554
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
HUB reports following memory sub-system interrupts:
a) ACCESS_COUNTER_NOTIFY:
GET != PUT for access counter notify buffer
b) ACCESS_COUNTER_ERROR:
HUB received a NACK (BAR2 fault) when writing the
notify buffer out to memory
c) MMU_ECC_UNCORRECTED_ERROR_NOTIFY:
Uncorrected ECC error detected by HUB MMU
d) MMU_REPLAYABLE_FAULT_NOTIFY:
GET != PUT for replayable fault buffer
e) MMU_REPLAYABLE_FAULT_OVERFLOW:
Overflow when writing to the replayable fault buffer
f) MMU_NONREPLAYABLE_FAULT_NOTIFY:
GET != PUT for non-replayable fault buffer
g) MMU_NONREPLAYABLE_FAULT_OVERFLOW:
Overflow when writing to the non-replayable fault buffer
h) MMU_OTHER_FAULT_NOTIFY: All other fault notifications from MMU
This change is to :
-Detect other fault notify
-Copy fault info from fault snap register for other fault notify
interrupt
-Detect and handle nonreplay/replay fault notify and fault overflow
-Copy fault info from fault buffer for nonreplay/replay fault
-Print fault info
JIRA GPUT19X-7
JIRA GPUT19X-12
Change-Id: Ifa08a4ebcd119a7d81c2eae3f52dc825d1ce3898
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master/r/1493394
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Changes to enable 64 subcontexts: 1 SYNC + 63 ASYNC
Currently all subcontexts with in a tsg can have only
single address space.
Add support for NVGPU_TSG_IOCTL_BIND_CHANNEL_EX for
selecting subctx id by client.
Bug 1842197
Change-Id: Icf56a41303bd1ad7fc6f2a6fbc691bb7b4a01d22
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master/r/1511145
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
When Host receives a page fault signal from a CE, Host will immediately
set _ENG_FAULTED bit in the NV_PCCSR_CHANNEL register for the channel
and will trigger a preempt of the TSG/channel.
A channel will only be scheduled when _ENABLED=1, _ENG_FAULTED=0
and _PBDMA_FAULTED=0 in pccsr_channel reg for the channel.
If a TSG has a faulted channel, Host will not schedule the entire TSG
agin until all _FAULTED bits from channels in the TSG are cleared by SW.
This function will be required for ce page fault handling.
JIRA GPUT19X-46
JIRA GPUT19X-12
Change-Id: Ib58dff7aa24aa144e970f11b5261877dec03f3e6
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master/r/1509776
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When CE hits a page fault it needs to save out methods, it will
save it out to a per runqueue per TSG method buffer. The method buffers
(one per TSG runqueue) are allocated in BAR2 space during TSG creation
All channels in a TSG that are mapped to the same runqueue will point
to the same buffer.
S/w will insert channel's method buffer pointer in the channel's
instance block entries NV_RAMIN_ENG_METHOD_BUFFER_ADDR_LO and
NV_RAMIN_ENG_METHOD_BUFFER_ADDR_HI. Method buffer in memory will
be 32B aligned.
Eng method buffer allocated per tsg will be de-allocated during
tsg_release.
JIRA GPUT19X-46
Change-Id: Ib480ae5840d9815d24fe2eadc169ac3102854cd0
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master/r/1509747
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
- detect and decode sched_error type. Any sched error starting with xxx_* is
not supported in h/w and should never be seen by s/w
- for bad_tsg sched error, preempt all runlists to recover as faulted ch/tsg
is unknown. For other errors, just report error.
- ctxsw timeout is not part of sched error fifo interrupt. A new
fifo interrupt, ctxsw timeout is added in gv11b. Add s/w handling.
Bug 1856152
JIRA GPUT19X-74
Change-Id: I474e1a3cda29a450691fe2ea1dc1e239ce57df1a
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: http://git-master/r/1317615
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Context TSG teardown procedure:
1. Disable scheduling for the engine's runlist via NV_PFIFO_SCHED_DISABLE.
This enables SW to determine whether a context has hung later in the
process: otherwise, ongoing work on the runlist may keep ENG_STATUS from
reaching a steady state.
2. Disable all channels in the TSG being torn down or submit a new runlist
that does not contain the TSG. This is to prevent the TSG from being
rescheduled once scheduling is reenabled in step 6.
3. Initiate a preempt of the engine by writing the bit associated with its
runlist to NV_PFIFO_RUNLIST_PREEMPT. This allows to begin the preempt
process prior to doing the slow register reads needed to determine
whether the context has hit any interrupts or is hung. Do not poll
NV_PFIFO_RUNLIST_PREEMPT for the preempt to complete.
4. Check for interrupts or hangs while waiting for the preempt to complete.
During the pbdma/eng preempt finish polling, any stalling interrupts
relating to runlist must be detected and handled in order for the
preemption to complete.
5. If a reset is needed as determined by step 4:
a. Halt the memory interface for the engine (as per the relevant engine
procedure).
b. Reset the engine via NV_PMC_ENABLE.
c. Take the engine out of reset and reinit the engine (as per
relevant engine procedure)
6. Re-enable scheduling for the engine's runlist via NV_PFIFO_SCHED_ENABLE.
JIRA GPUT19X-7
Change-Id: I1354dd12b4a4f0e4b4a8d9721581126c02288a85
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: http://git-master/r/1327931
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Included all basic ops for gv11b and updated
sm related functions to include new priv register
addresses.
Bug 1735757
Change-Id: Ie48651f918ee97fba00487111e4b28d6c95747f5
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/1126961
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
