MAX/threshold value of user managed syncpoint is not tracked by nvgpu
So if channel is reset by nvgpu there could be waiters still waiting on some
user syncpoint fence
Fix this by setting a large safe value to user managed syncpoint when aborting
the channel and when closing the channel
We right now increment the current value by 0x10000 which should be sufficient
to release any pending waiter
Bug 200326065
Jira NVGPU-179
Change-Id: Ie6432369bb4c21bd922c14b8d5a74c1477116f0b
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1678768
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
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GV100 ucode is changed so that it expects LIST_nv_perf_pma_ctx_reg list in
ctxsw buffer to be 256 byte aligned but same change is not applied to other
chip ucodes
ADD new HAL (*add_ctxsw_reg_perf_pma) to configure PMA register list and
define a common HAL gr_gk20a_add_ctxsw_reg_perf_pma() for all other
chips except GV100
Define a separate HAL for GV100 gr_gv100_add_ctxsw_reg_perf_pma() and fix
the required alignment in this function
Bug 1998067
Change-Id: Ie172fe90e2cdbac2509f2ece953cd8552e66fc56
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1676655
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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For LIST_nv_pm_fbpa_ctx_regs, we right now call
add_ctxsw_buffer_map_entries_subunits() to add registers corresponding
to all the FBPAs
But while configuring total number of registers, we do not consider
floorswept FBPAs and that causes misalignment in subsequent lists for GV100
Fix this by reading disabled/floorswept FBPAs from fuse and consider only those
FBPAs which are active for GV100
Add new HAL (*add_ctxsw_reg_pm_fbpa) to support this setting and define a
common HAL gr_gk20a_add_ctxsw_reg_pm_fbpa() for all chips except GV100
Define GV100 specific gr_gv100_add_ctxsw_reg_pm_fbpa() with above mentioned
implementation to consider floorsweeping
Bug 1998067
Change-Id: Id560551bb0b8142791c117b6d27864566c90b489
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1676654
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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Switching GPU clock in/out of bypass concurrently with h/w thermal
throttling may result in unpredictable/unstable clock output from GPU
linear divider. Hence, made sure thermal throttling is disabled before
bypass entry, and enabled after bypass exit.
Bug 1893467
Change-Id: Ia919c599eeb0115e11a34370aea3982aa935db2f
Signed-off-by: Srikar Srimath Tirumala <srikars@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1677022
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Req : Some boardobjgrp don't need getstatus support, so
boardobjgrp pmu cmd not constructed for those boardobjgrp.
Don't request memory alloc if boardobjgrp pmu cmd
not constructed & should exit cleanly without allocating memory.
Fix: Don't request memory alloc if boardobjgrp pmu cmd
not constructed by checking "sturct boardobjgrp_pmu_cmd"
member "fbsize" value.
Change-Id: I610d6812ec1d1bcf7ea38645236601b3e5672650
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1674191
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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When generating the aperture field for the PDE being programmed
we must use the next PD not the current PD. This is important for
cases on the dGPU where VIDMEM runs out.
In such cases the page table may reside in both VIDMEM and SYSMEM.
Thus, if a PDE points to a PDE in a different type of memory
(VIDMEM -> SYSMEM or SYSMEM -> VIDMEM) then the aperture will not
be programmed correctly if the code uses the current PD for
picking the next PD aperture.
Bug 2082475
Change-Id: Ic1a8d1e2c2237712039dc298b97095d3bbc6c844
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1676831
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Delete the proxy waiter for non-semaphore-backed syncfds in sema wait
path to simplify code, to remove dependencies to the sync framework (and
thus Linux) and to support upcoming refactorings. This feature has never
been used for actually foreign fences.
Jira NVGPU-43
Jira NVGPU-66
Change-Id: I2b539aefd2d096a7bf5f40e61d48de7a9b3dccae
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1665119
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
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When __NVGPU_POSIX__ is defined do no use ioremap(). This operation
probably doesn't make much sense. Currently we have no plans to run
the driver in userspace against a real GPU, hence programming the
nvlink credits registers is simply not necessary.
Also fix an unused variable by returing it as an error.
JIRA NVGPU-525
Change-Id: Ic94d332551f6e25c1836331bf92188e7651546cb
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1673815
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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get_cycles is a linux specific API used in common code. This API
is being used, it seems, as a method to generate time stamps. So
add an API to generate 'high resolution' time stamps. This API
returns an opaque time stamp: that is not something one may use
directly as a time since in the Linux implementation we just use
this cycle counter.
Other implementations will, of course, be free to implement as a
real time stamp.
JIRA NVGPU-525
Change-Id: I237aac9bd6c795d000459025bdb4fce92e8aaa3d
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1673811
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The pre-fence wait for semaphores in the submit path has supported a
fast path for fences that have only one underlying semaphore. The fast
path just inserts the wait on this sema to the pushbuffer directly. For
other fences, the path has been using a CPU wait indirection, signaling
another semaphore when we get the CPU-side callback.
Instead of only supporting prefences with one sema, unroll all the
individual semaphores and insert waits for each to a pushbuffer, like
we've already been doing with syncpoints. Now all sema-backed syncs get
the fast path. This simplifies the logic and makes it more explicit that
only foreign fences need the CPU wait.
There is no need to hold references to the sync fence or the semas
inside: this submitted job only needs the global read-only sema mapping
that is guaranteed to stay alive while the VM of this channel stays
alive, and the job does not outlive this channel.
Jira NVGPU-43
Jira NVGPU-66
Jira NVGPU-513
Change-Id: I7cfbb510001d998a864aed8d6afd1582b9adb80d
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1636345
Reviewed-by: Alex Waterman <alexw@nvidia.com>
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VGPU has set aggressive_sync_destroy_thresh even for GV11B, and that breaks
allocation of user managed syncpoint on VGPU
Remove this check for now until some solution is finalized
Bug 200397265
Bug 200326065
Change-Id: Idd765cfdd40b9055d9e083d59c85c84d8b213ee9
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1675678
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
- Added support for single rail multi step volt policy & below
are the list of define & struct added/updated to support same.
CTRL_VOLT_POLICY_TYPE_SINGLE_RAIL_MULTI_STEP 0x04,
NV_VBIOS_VOLTAGE_POLICY_1X_ENTRY_TYPE_SINGLE_RAIL_MULTI_STEP 0x04,
Updated struct vbios_voltage_policy_table_1x_entry,
struct nv_pmu_volt_volt_policy_sr_multi_step_boardobj_set, this holds
members which help to config single rail multi step like delay
between switch step, ramp up & ramp down step size in uv.
- Added case to support SINGLE_RAIL_MULTI_STEP in
volt_volt_policy_construct() based on boardobj type.
- Added case to support SINGLE_RAIL_MULTI_STEP in
volt_get_volt_policy_table() to read data from VBIOS
table vbios_voltage_policy_table_1x_entry & extract to
voltage_policy_single_rail_multi_step.
- Added methods to forward single rail multi step data to
PMU using below methods by assigning data read from
VBIOS voltage_policy_single_rail_multi_step to
nv_pmu_volt_volt_policy_sr_multi_step_boardobj_set
interface.
volt_construct_volt_policy_single_rail_multi_step()
volt_policy_pmu_data_init_sr_multi_step()
volt_policy_pmu_data_init_single_rail()
construct_volt_policy_single_rail()
Change-Id: I17bc8c320777191611365ee63274c38ffe5ecbf7
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1660687
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- Created volt ops under pmu_ver to support volt_set_voltage,
volt_get_voltage & volt_send_load_cmd_to_pmu.
- Renamed volt load, set_voltage & get_voltage gp10x method names.
- Added new volt load, set_voltage & get_voltage methods for gv10x
using RPC & added code to handle ack in pmu_rpc_handler() along
with struct rail_list changes.
- Updated volt ops of gp106 & gv100 to point to respective methods.
- Added member volt_dev_idx_ipc_vmin & volt_scale_exp_pwr_equ_idx to
"struct nv_pmu_volt_volt_rail_boardobj_set" & "struct voltage_rail"
made changes to update members as needed.
- Added member volt_scale_exp_pwr_equ_idx to
"struct vbios_voltage_rail_table_1x_entry" to read
value from VBIOS table & update rail boardobj set interface.
- Defines for volt RPC "NV_PMU_RPC_ID_VOLT_*"
- Define struct's volt load, set_voltage & get_voltage to execute
volt RPC.
Change-Id: I4a41adcf7536468beaa8a73f551b1d608aabd161
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1659728
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When nvgpu maps an nvgpu_mem struct the nvgpu driver has a choice of
either using a fixed or non-fixed mapping. For non-fixed mappings the
GMMU APIs allocate a VA space for the caller. In that case the GMMU
APIs must also free that VA range when nvgpu unmaps the nvgpu_mem.
For fixed mappings the GMMU APIs must instead not manage the life
time of the VA space. To support these two possibilities add a field
to nvgpu_mem that specifies whether the GMMU APIs must or must not
free the GPU VA range during the GMMU unmap operation.
Also fix a case in the nvgpu vm_area code that would double free a
VA allocation in some cases (sparse allocs).
Change-Id: Idc32dbb8208fa7c1c05823e67b54707fea51c6b7
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1669920
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- Updated & added new parameter "bool is_copy_back" to
nvgpu_pmu_rpc_execute() to support copy back processed
RPC request from PMU to caller by passing parameter value
true & this blocks method till it receives ACK from PMU
for requested RPC.
- Added "struct rpc_handler_payload" to hold info
required for RPC handler like RPC buff address &
clear memory if copy back is not requested.
- Added define PMU_RPC_EXECUTE_CPB to support to copy back
processed RPC request from PMU to caller.
- Updated RPC callback handler support, crated memory &
assigned default handler if callback is not requested
else use callback parameters data to request to PMU.
- Added define PMU_RPC_EXECUTE_CB to support callback
- Updated pmu_wait_message_cond(), restricted condition
check to 8-bit instead 32-bit condition check.
Change-Id: Ic05289b074954979fd0102daf5ab806bf1f07b62
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1664962
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Modify the GK20A_TRACE_PRINTK config such that it depends on TRACING
instead of FTRACE_PRINTK. The latter is not in upstream Linux nor in our
downstream 4.9, and this option is default n anyway so this is a pretty
safe change.
Change-Id: If4ce5a041c8392d0bc54a60730c6ab3115b0062a
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1674114
GVS: Gerrit_Virtual_Submit
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Add new characteristics flag NVGPU_GPU_FLAGS_SUPPORT_USER_SYNCPOINT to indicate
support for this new API
Add new flag NVGPU_SUPPORT_USER_SYNCPOINT for use of core driver.
Set this flag for VGPU-GV11B
Bug 200326065
Jira NVGPU-179
Change-Id: I6c992b13268b688a2bbc93a3331e987ea2f7dd0c
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1670452
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struct nvgpu_semaphore represents (mainly) a threshold value that a sema
at some index will get and struct nvgpu_semaphore_int (aka "hw_sema")
represents the allocation (and write access) of a semaphore index and
the next value that the sema at that index can have. The threshold
object doesn't need a pointer to the sema allocation that is not even
guaranteed to exist for the whole threshold lifetime, so replace the
pointer by the position of the sema in the sema pool.
This requires some modifications to pass a hw sema around explicitly
because it now represents write access more explicitly.
Delete also the index field of semaphore_int because it can be directly
derived from the offset in the sema location and is thus unnecessary.
Jira NVGPU-512
Change-Id: I40be523fd68327e2f9928f10de4f771fe24d49ee
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1658102
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Add IPA to PA translation for GV100 nvlink / pass-through mode
- define platform->phys_addr(g, ipa) method
- call nvgpu_init_soc_vars from nvgpu_tegra_pci_probe
- in nvgpu_init_soc_vars, define set platform->phys_addr to
nvgpu_tegra_hv_ipa_pa, if hypervisor is present.
- in __nvgpu_sgl_phys, use sg_phys, then apply platform->phys_addr
if defined.
- implement IPA to PA translation in nvgpu_tegra_hv_ipa_pa
Bug 200392719
Change-Id: I622049ddc62c2a57a665dd259c1bb4ed3843a537
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1673582
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Reviewed-by: Richard Zhao <rizhao@nvidia.com>
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Add __nvgpu_sgl_phys function that can be used to implement IPA
to PA translation in a subsequent change.
Adapt existing function prototypes to add pointer to gpu context,
as we will need to check if IPA to PA translation is needed.
JIRA EVLR-2442
Bug 200392719
Change-Id: I5a734c958c8277d1bf673c020dafb31263f142d6
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1673142
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Default semaphore payload size is 16byte. Set it to 4 byte
to avoid double increment of associated sync point with
semaphore release.
Also removed extra 0 op function from syncpoint increment
command.
Bug 2066025
Change-Id: Ia282cc5625827d356b5ba963adb7b1b3c703a931
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
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Replace the padding in nvgpu_channel_wdt_args with a timeout value in
milliseconds, and add NVGPU_IOCTL_CHANNEL_WDT_FLAG_SET_TIMEOUT to
signify the existence of this new field. When the new flag is included
in the value of wdt_status, the field is used to set a per-channel
timeout to override the per-GPU default.
Add NVGPU_IOCTL_CHANNEL_WDT_FLAG_DISABLE_DUMP to disable the long debug
dump when a timed out channel gets recovered by the watchdog. Printing
the dump to serial console takes easily several seconds. (Note that
there is NVGPU_TIMEOUT_FLAG_DISABLE_DUMP about ctxsw timeout separately
for NVGPU_IOCTL_CHANNEL_SET_TIMEOUT_EX as well.)
The behaviour of NVGPU_IOCTL_CHANNEL_WDT is changed so that either
NVGPU_IOCTL_CHANNEL_ENABLE_WDT or NVGPU_IOCTL_CHANNEL_DISABLE_WDT has to
be set. The old behaviour was that other values were silently ignored.
The usage of the global default debugfs-controlled ch_wdt_timeout_ms is
changed so that its value takes effect only for newly opened channels
instead of in realtime. Also, zero value no longer means that the
watchdog is disabled; there is a separate flag for that after all.
gk20a_fifo_recover_tsg used to ignore the value of "verbose" when no
engines were found. Correct this.
Bug 1982826
Bug 1985845
Jira NVGPU-73
Change-Id: Iea6213a646a66cb7c631ed7d7c91d8c2ba8a92a4
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1510898
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With proper wrap-handling comparisons now supported, it's safe to not
reset a kernel-managed semaphore to 0 when initializing it to be used by
some channel; the value can be left unchanged, so that any pending waits
on other channels for this sema can't get corrupted anymore. This makes
semaphore values very similar to syncpoints, i.e., just monotonically
increasing counters.
Also clear the semaphore sea to values of 0xfffffff0 when allocating it.
This way it takes 16 increments on each sema to wrap over the 32-bit
integer range; such wrapping would eventually happen if the memory was
initialized to zeros, so this way any bugs possibly caused by wrapping
not taken into account would uncover quickly after boot.
Jira NVGPU-514
Change-Id: I93f9b1d32d020a4c23824f5856bc463b1895b99d
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1652087
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The value of NV_PERF_PMASYS_MEM_BUMP is different for Volta
and NVGPU_IOCTL_CHANNEL_CYCLE_STATS_SNAPSHOT_CMD_FLUSH did not
have correct behavior on GV11B due to that.
The patch adds an instance of css_hw_set_handled_snapshots
for Volta to fix that.
Bug 1960846
Bug 2068936
Change-Id: Ic057338d3b1b951a66d070267e69a90f136598b9
Signed-off-by: Martin Radev <mradev@nvidia.com>
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