- When DISALLOW cmd is sent from driver to PMU the actual
completion of the disallow will be acknowledged by PMU
via a new RPC: ASYNC_CMD_RESP.
- Disallow needs a delayed ACK from PMU in order to disable
the ELPG.
- If ELPG is already engaged, the DISALLOW cmd will trigger
ELPG exit and then transition to PMU_PG_STATE_DISALLOW.
- After this whole process is completed, PMU will send
DISALLOW_ACK through ASYNC_CMD_RESP RPC.
- After disallow command is sent from the driver, NvGPU driver
waits/polls for disallow command ack. This is sent immediately
by RPC framework of PMU.
- Then, the driver will poll/wait for ASYNC_CMD_RESP event which
is the delayed DISALLOW ACK.
- The driver captures the ASYNC_CMD_RESP RPC sent from PMU.
- set disallow_state to ELPG_OFF.
- If the driver does not wait/poll for this delayed disallow
ack from PMU, it can result in pmu halt issues as PMU is still
processing DISALLOW cmd but the driver progressed further which
can result in errors.
Bug 3430273
Bug 3439350
Change-Id: If2acf8391d18cd3c6b8b07e3bf6577667ec99eea
Signed-off-by: Divya <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2631214
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GVS: Gerrit_Virtual_Submit
Most of the Orin chip specific code is compiled out of safety build
with CONFIG_NVGPU_NON_FUSA and CONFIG_NVGPU_HAL_NON_FUSA. Remove the
config protection from Orin/GA10B specific code. Currently all code
is enabled. Code not required in safety will be compiled out later
in separate activity.
Other noteworthy changes in this patch related to safety build:
- In ga10b_ce_request_idle(), add a log print to dump num_pce so that
compiler does not complain about unused variable num_pce.
- In ga10b_fifo_ctxsw_timeout_isr(), protect variables active_eng_id and
recover under CONFIG_NVGPU_KERNEL_MODE_SUBMIT to fix compilation
errors of unused variables.
- Compile out HAL gops.pbdma.force_ce_split() from safety since this HAL
is GA100 specific and not required for GA10B.
- Compile out gr_ga100_process_context_buffer_priv_segment() with
CONFIG_NVGPU_DEBUGGER.
- Compile out VAB support with CONFIG_NVGPU_HAL_NON_FUSA.
- In ga10b_gr_intr_handle_sw_method(), protect left_shift_by_2 variable
with appropriate configs to fix unused variable compilation error.
- In ga10b_intr_isr_stall_host2soc_3(), compile ELPG function calls
with CONFIG_NVGPU_POWER_PG.
- In ga10b_pmu_handle_swgen1_irq(), move whole function body under
CONFIG_NVGPU_FALCON_DEBUG to fix unused variable compilation errors.
- Add below TU104 specific files in safety build since some of the code
in those files is required for GA10B. Unnecessary code will be
compiled out later on.
hal/gr/init/gr_init_tu104.c
hal/class/class_tu104.c
hal/mc/mc_tu104.c
hal/fifo/usermode_tu104.c
hal/gr/falcon/gr_falcon_tu104.c
- Compile out GA10B specific debugger/profiler related files from
safety build.
- Disable CONFIG_NVGPU_FALCON_DEBUG from safety debug build temporarily
to work around compilation errors seen with keeping this config
enabled. Config will be re-enabled in safety debug build later.
Jira NVGPU-7276
Change-Id: I35f2489830ac083d52504ca411c3f1d96e72fc48
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
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Add support for adding and deleting domains for all runlists together.
The core scheduler logic will control runlist domains.
Initially, however, it may be necessary to only actually schedule only
the GR runlist, but keeping the runlist code agnostic of such scheduling
logic helps isolate the control complexity.
NVGPU-6425
Change-Id: Id6039bd37a293a2cf3eaee5ed84d35459e8b89e7
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2628049
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When there are multiple scheduling domains, each runlist pointer has to
be switched according to the active scheduling policy. For now implement
a trivial round robin policy to loop the domains over, just sufficient
for testing. In the future the switching will be owned by the scheduler
code, but this helps prepare the design for that.
The switching will not do anything if there is only one domain, so
current functionality is not affected.
For simplicity, all runlists are switched at the same time. In the
future, it may be desirable to swap e.g. only the GR runlist and keep
others running free, outside scheduler control.
Jira NVGPU-6427
Jira NVGPU-6425
Change-Id: Ic68c13e97761bbdc210c74794de8ccb8dbd45587
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2628048
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GVS: Gerrit_Virtual_Submit
On certain platforms, not all copy engine instances are usable. The user
shouldn't submit any work to these engines. To enforce this, remove
these engines from active/host_engine list, this should ensure that these
engines do not get advertised to userspace. In order to accomplish this
introduce the following functions:
- nvgpu_engine_remove_one_dev: This function removes the specified device
entry from following device lists: fifo->host_engines, fifo->active_engines,
runlist->rl_dev_list, runlist->eng_bitmask.
Replace iteration over LCE device type entries using
nvgpu_device_for_each(g, dev, NVGPU_DEVTYPE_LCE), along with this introduce
macro nvgpu_device_for_each_safe.
Introduce gpu_dbg_ce flag for CE debugging.
Bug 3370462
Change-Id: I2e21f18363c6e53630d129da241c8fece106cd33
Signed-off-by: Antony Clince Alex <aalex@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2616711
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Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
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Start transitioning from an assumption of a single runlist buffer to the
domain based approach where a TSG is a participant of a scheduling
domain that then owns has a runlist buffer used for hardware scheduling.
Concretely, move the concept of a runlist domain up to the users of the
runlist code. Modifications to a runlist need to specify which domain is
modified.
There is still only the default domain that is created at boot.
Jira NVGPU-6425
Change-Id: Id9a29cff35c94e0d7e195db382d643e16025282d
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2621213
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GVS: Gerrit_Virtual_Submit
- The hardware is designed in such a way that
if GR engine is not out of reset, it still takes clock.
- This causes ELCG feature to not engage correctly.
- So for iGPU, SW should bring all supported GR
engines out of reset during gpu boot, if MIG feature
is not enabled.
- This will help low power feature like elcg to
engage correctly and improve dynamic power savings.
- For dGPU, all GRs are out of reset by default by dev init.
Bug 200778542
Change-Id: I5f3519f73b4aaf1804fd112f28fe980f58181cd8
Signed-off-by: Divya <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2613718
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Delete an unnecessary check of the active_channels bitmap when
attempting to bind a channel to a TSG. There is already a verification
that the channel must not be a part of a TSG; if it's not, it cannot be
set in the bitmap. All channels become active via a parent TSG, but the
activity check predates this design.
A channel is bound to a TSG early before setting up its gpfifo etc. and
mandatory membership of a TSG is one of the setup_bind prechecks.
Jira NVGPU-6425
Change-Id: Id34686f198db0a0265ffd6a49a0b2e47c37fd5f7
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2621211
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GVS: Gerrit_Virtual_Submit
Move the active_channels and active_tsgs bitmaps from struct
nvgpu_runlist to struct nvgpu_runlist_domain. A TSG and its channels are
currently active as part of a runlist; in the future, a runlist may be
switched from multiple domains that each are a collection of TSGs.
The changes are still internal to the runlist code. Users of runlists
need no modifications.
Jira NVGPU-6425
Change-Id: I2d0e98e97f04b9716bc3f4890cf881735d0ab664
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2618387
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The current runlist code assumes a single runlist buffer to hold all TSG
and channel entries. Create separate RL domain and domain memory types
to hold data that is related to only a scheduling domain and not
directly to the runlist hardware; in the future, more than one domains
may exist and one of them is enabled at a time.
The domain is used only internally by the runlist code at this point and
is functionally equivalent to the current runlist memory that houses the
round robin entries.
The double buffering is still kept, although more domains might benefit
from some cleverness. Although any number of created domains may be
edited in runtime, nly one runlist memory is accessed by the hardware at
a time. To spare some contiguous memory, this should be considered an
opportunity for optimization in the future.
Jira NVGPU-6425
Change-Id: Id99c55f058ad56daa48b732240f05b3195debfb1
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2618386
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nvgpu_timeout_init() returns an error code only when the flags parameter
is invalid. There are very few possible values for flags, so extract the
two most common cases - cpu clock based and a retry based timeout - to
functions that cannot fail and thus return nothing. Adjust all callers
to use those, simplfying error handling quite a bit.
Change-Id: I985fe7fa988ebbae25601d15cf57fd48eda0c677
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2613833
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The implementation already exists. This change
adds NVGPU_GR_ZBC_TYPE_STENCIL and plumbs through
the stencil value from NvRmGpuDeviceZbcAddStencil
through NVGPU_GPU_IOCTL_ZBC_SET_TABLE.
Adds cases for querying the stencil values,
enabling NvRmGpuDeviceZbcGetStencilTableEntry.
Bug 3403523
Bug 3395601
Change-Id: I42c9a2967d0433e0bb08343aabeff0fe465f231e
Signed-off-by: Pyarelal Knowles <pknowles@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2554963
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nvgpu_locate_pte() can be attempted on an address that is not mapped
yet. When the address is just right, it's possible that the pd entries
haven't been allocated yet; return an error in such case before
accessing the indexed entry.
Bug 200778663
Change-Id: I4f062531d30aec746d6828c2d05c046bc912bd2a
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2606175
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GVS: Gerrit_Virtual_Submit
The gmmu mapping code forgot to clear the already written gmmu entries
if a PD allocation failed in the middle. If nvgpu_set_pd_level() fails
when attempting to map, call it again with the same virt addr but unmap.
This may fail again if we're low on memory, but the already updated
entries are guaranteed to exist and get cleared again.
Ensure that TLB is invalidated even in error conditions since the GPU
may have already accessed the partially written data that is now
unmapped again. Likewise, flush L2 too because unmap happened.
Unify the unmap call a bit so that the gmmu attrs for an unmap are now
in only one place, including the unnecessary cbc_comptagline_mode
assignment as it's not used for unmap.
Bug 200778663
Change-Id: I5cbeb2d3fe445b4660eab7f34b04f6c257699b6d
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2599545
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GVS: Gerrit_Virtual_Submit
Reduce debug logs printed when gpu_dbg_info or gpu_dbg_fn is set.
- Add gpu_dbg_verbose flag for more verbose debug prints. Update prints
in to ga10b_gr_init_wait_idle(), gm20b_gr_init_wait_fe_idle(),
gv11b_gr_init_write_bundle_veid_state() and
gv11b_gr_init_load_sw_veid_bundle().
- Add gpu_dbg_hwpm flag for hwpm specific debug prints. Update print in
nvgpu_gr_hwpm_map_create().
- Add gpu_dbg_mm for MM specific debug prints. Update prints in
gm20b_fb_tlb_invalidate(), gk20a_mm_fb_flush(),
gk20a_mm_l2_invalidate_locked(), gk20a_mm_l2_flush() and
gv11b_mm_l2_flush().
- Remove gpu_dbg_fn mask print in gr_ga10b_create_priv_addr_table(),
gr_gk20a_get_pm_ctx_buffer_offsets(), gr_gv11b_decode_priv_addr() and
gr_gv11b_create_priv_addr_table().
Jira NVGPU-7183
Change-Id: I9842d567047cb95a42e23b5907ae324214eed606
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2602797
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Improved SDL heartbeat mechanism detects the interrupts triggered by
SW method and treats them as errors. Hence remove the SW method support
completely from safety build. Registers set by SW methods are now set
by default for all the contexts.
Implement new HAL gops.gr.init.set_default_compute_regs() to set the
registers in patch context. Call this HAL while creating each context.
Update gv11b_gr_intr_handle_sw_method() to treat all compute SW methods
as invalid.
Update unit test test_gr_intr_sw_exceptions() so that it now expects
failure for any method/data.
Bug 200748548
Change-Id: I614f6411bbe7000c22f1891bbaf06982e8bd7f0b
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2527249
(cherry picked from commit bb6e0f9aa1404f79bcfbdd308b8c174a4fc83250)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2602638
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The SEC2 ucode allocation code does not free the struct nvgpu_firmware
data structures used while requesting firmwares - sec2_fw, sec2_desc
and sec2_sig.
The lsfm_free_nonpmu_ucode_img_res() API only frees the 'data' field
of struct nvgpu_firmware, but not the entire struct.
Fix these memory leaks by calling nvgpu_release_firmware() API
after the intended use of allocated struct is achieved.
Bug 200690283
Change-Id: I1ed2e1603455bce65af897a40aa31ccc82fda4b0
Signed-off-by: smadhavan <smadhavan@nvidia.com>
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Introduce nvgpu_gmmu_map_partial() to map a specific size of a buffer
represented by nvgpu_mem, or what nvgpu_gmmu_map() used to do. Delete
the size parameter from nvgpu_gmmu_map() such that it now maps the
entire buffer. The separate size parameter is a historical artifact from
when nvgpu_mem did not exist yet; the typical use is to map the entire
buffer.
Mapping at a certain address with nvgpu_gmmu_map_fixed() still takes the
size parameter.
The returned address still has to be stored somewhere, typically to
mem.gpu_va by the caller so that the matching unmap variant finds the
right address.
Change-Id: I7d67a0b15d741c6bcee1aecff1678e3216cc28d2
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2601788
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Introduce nvgpu_gmmu_unmap_addr() to unmap a nvgpu_mem that was mapped
at some other address than mem.gpu_va, which can be the case for buffers
that are shared across different address spaces. Delete the address
parameter from nvgpu_gmmu_unmap(), as the common case is to store the
address to mem.gpu_va when mapping the buffer.
Modify some instances of consecutive unmap + free calls to call just
nvgpu_dma_unmap_free().
Change-Id: Iecd7c9aa41d04e9f48e055f6bc0c9227cd759c69
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2601787
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Fix MISRA rule 13.2 violations of below type from common.gr unit:
nvgpu/drivers/gpu/nvgpu/common/gr/gr_intr.c:108
Type: MISRA C-2012 Side Effects (MISRA C-2012 Rule 13.2, Required)
nvgpu/drivers/gpu/nvgpu/common/gr/gr_intr.c:108:
1. misra_c_2012_rule_13_2_violation:
In "nvgpu_safe_add_u32(nvgpu_gr_gpc_offset(g, gpc), nvgpu_gr_tpc_offset(g, tpc))",
there are 2 function calls in the arguments for which the order of
evaluation is undefined.
Jira NVGPU-7127
Change-Id: Ie867fb62098eed3a45ec01b941eda93b94220b4b
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2598696
(cherry picked from commit 15483df6ca1017e5b9d6f2dff35f7e57094a2b4d)
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GVS: Gerrit_Virtual_Submit
- On pre-silicon platform, static pg will be
done by nvgpu driver. For this, retain structs
and HALs of static pg.
- Add the static pg support under pre-silicon code.
- On silicon, the static pg will be done by BPMP.
- Rename variables used in static pg for better
readability and consistency
Bug 200768322
JIRA NVGPU-6433
Change-Id: Ib31c0f83b751c2b1563a36bd51af78a0bd12a117
Signed-off-by: Divya <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2594801
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