Mapping of large buffers to GMMU end up needing many
pages for the PTE tables. Allocating these one by one
can end up being a performance bottleneck, particularly
in the virtualized case.
This is adding the following changes:
- As the TLB invalidation doesn't have access to mem_off,
allow top-level allocation by alloc_cache_direct().
- Define NVGPU_PD_CACHE_SIZE, the allocation size for a new slab
for the PD cache, effectively set to 64K bytes
- Use the PD cache for any allocation < NVGPU_PD_CACHE_SIZE
When freeing up cached entries, avoid prefetch errors by
invalidating the entry (memset to 0).
- Try to fall back to direct allocation of smaller chunk for
contiguous allocation failures.
- Unit test changes.
Bug 200649243
Change-Id: I0a667af0ba01d9147c703e64fc970880e52a8fbc
Signed-off-by: dt <dt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2404371
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APIs to set preemption modes right now have config based code to set
default preemption modes or to check if given preemption mode is valid
or not. This makes code unreadable and complex.
Rework nvgpu_gr_obj_ctx_init_ctxsw_preemption_mode() so that it checks
for initial preemption modes in the beginning. If no preemption mode is
passed while allocating context, get default preemption modes with
gops.gr.init.get_default_preemption_modes() and use them.
Rework nvgpu_gr_ctx_check_valid_preemption_mode() so that it is more
readable. Use gops.gr.init.get_supported_preemption_modes() to validate
incoming preemption modes against supported preemption modes.
Log preemption modes getting set in
nvgpu_gr_obj_ctx_set_ctxsw_preemption_mode().
Disable failing unit test. It will need rework according to new code.
Jira NVGPU-5648
Change-Id: Ie1a3e1aeae7826a123e104d9d016f181bea3b271
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2419034
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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Reviewed-by: Lakshmanan M <lm@nvidia.com>
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GVS: Gerrit_Virtual_Submit
common.gr defined a temporary macro NVGPU_GR_NUM_INSTANCES to enable or
disable multiple GR instances from common.gr unit.
Multiple GR instance boot is now verified, so we can remove this
temporary solution.
Note that nvgpu_grmgr_get_num_gr_instances() will return more than 1
instance only if NVGPU_SUPPORT_MIG is enabled.
Update unit tests to set number of syspipes to 1 to allow enumeration
of GR instance by grmgr.
Jira NVGPU-5648
Change-Id: I795901ae516843ae7b6c1794dae0f023a213ab1d
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2418377
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
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Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Lakshmanan M <lm@nvidia.com>
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
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Get number of SMs from GR instance specific nvgpu_gr_config pointer
instead of global SM count in below functions :
nvgpu_gr_fs_state_init()
gv11b_gr_init_sm_id_config()
Update nvgpu_gr_config_get_gpc_skip_mask() to return 0 in case gpc_index
is greater than available gpc_count. This is not MIG specific, but based
on code review possible even today for existing chips.
See gm20b_gr_init_pd_skip_table_gpc()
Update nvgpu_gr_get_override_ecc_val() to return GR instance specific
value.
Execute gr_init_setup_hw() for each GR instance.
Disable below failing unit tests:
nvgpu_gr_fs_state.test_gr_fs_state_error_injection
nvgpu_gr_init.test_gr_init_hal_config_error_injection
Jira NVGPU-5648
Change-Id: Ie8f1c0c304c634756786d85facf336a5c9ae8195
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2410702
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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GVS: Gerrit_Virtual_Submit
Add a new header file <nvgpu/gr/gr_instances.h> that supports below
macros to execute various functions for GR instances
1) nvgpu_gr_exec_for_each_instance
Execute a function for each GR instance by configuring GR remap
window for that instance. Function being executed returns void.
2) nvgpu_gr_exec_with_ret_for_each_instance
Execute a function for each GR instance by configuring GR remap
window for that instance. Function being executed returns an error.
3) nvgpu_gr_exec_for_all_instances
Execute a function for all GR instances at once. For this GR remap
window needs to be disabled temporarily.
If CONFIG_NVGPU_MIG is disabled, all above macros will turn into simple
funciton calls.
If CONFIG_NVGPU_MIG is disabled or if runtime flag NVGPU_SUPPORT_MIG is
disabled, all above macros will turn into simple function calls that
configure single GR instance.
Separate out GR engine reset code into new API gr_reset_engine() and
execute it with nvgpu_gr_exec_with_ret_for_each_instance().
PROD values need to be loaded in legacy mode, hence call
nvgpu_cg_init_gr_load_gating_prod() inside
nvgpu_gr_exec_for_all_instances().
Rename gr_init_prepare_hw() to more appropriate
gr_reset_hw_and_load_prod()
Moe gops.gr.init.fifo_access() call to gr_init_reset_enable_hw().
Add new API nvgpu_grmgr_get_gr_syspipe_id() to query GR instance syspipe
id from common.grmgr unit. Add nvgpu_gr_get_syspipe_id() that returns
same value stored in nvgpu_gr struct.
Add cur_gr_instance field to struct nvgpu_gr to track current GR
instance being programmed under remap window.
Jira NVGPU-5648
Change-Id: I86920303427a6e6547ebf195daa37438365bb38e
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2403550
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common.gr unit exports a separate API nvgpu_gr_prepare_sw to
initialize some SW pieces required for nvgpu_gr_enable_hw().
A separate API is really unnecessary since same initialization
can be performed in nvgpu_gr_alloc().
Remove nvgpu_gr_prepare_sw() and HAL gops.gr.gr_prepare_sw().
Initialize falcon and interrupt structures in loop from
nvgpu_gr_alloc().
Move nvgpu_netlist_init_ctx_vars() from nvgpu_gr_prepare_sw() to
common init path since netlist parsing need not be done from
common.gr unit. It just needs to happen before nvgpu_gr_enable_hw().
Also, trigger nvgpu_gr_free() from gr_remove_support() instead
of OS specific paths. Also remove nvgpu_gr_free() calls from
probe error paths since nvgpu_gr_alloc is no longer called in
probe path.
Move interrupt and falcon data structure free calls to nvgpu_gr_free().
Also remove corresponding unit testing code that tests
nvgpu_gr_prepare_sw() specifically.
Update some unit tests to initialize ecc counters and netlist.
Disable some unit tests that fail for reasons unknown.
Jira NVGPU-5648
Change-Id: I82ec8160f76530bc40e0c11a9f26ba1c8f9cf643
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2400166
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Add new API nvgpu_grmgr_get_num_gr_instances() that returns number of
GR instance enumerated by GR manager. This just returns number of sys
pipes enabled since it is same as number of GR instances.
For consistency until common.gr supports multiple GR instances
completely, add a temporary macro NVGPU_GR_NUM_INSTANCES and set it
to 1. If this macro is changed to 0 (for local MIG testing), fall
back to use nvgpu_grmgr_get_num_gr_instances() to get enumerated number
of GR instances.
Use a for loop to initialize other variables of struct nvgpu_gr.
Remove unnecessary NULL check in nvgpu_gr_alloc() since struct gk20a
pointer can never be NULL in this path. Also remove corresponding unit
test code.
Jira NVGPU-5648
Change-Id: Id151d634a23235381229044f2a9af89e390886f2
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2400151
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Fix up what unit tests can be easily fixed up. Stage everything else.
In short the unit test code is _incredibly_ fragile since it's designed
to hit every branch, positive and negative, in the code. However, the
result of that is unit tests that are painful to modify.
A lot of unit tests are also extremely opaque and rely on internal
nvgpu behavior. This patch will be updated with fixes as I make them.
Or, alternatively, it may be worth just temporarily disabling unit
tests on dev-main. We'll have a _lot_ of work for Orin that will
essentially gut the gr, host, and interrupt code. If we retain the
unit test code for this, it may end up being backgreaking.
JIRA NVGPU-5421
Change-Id: I8055fc72521f6a3a8a0d8f07fbe50c649a675016
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2347274
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
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struct nvgpu_gr is right now initialized during probe and from OS
specific code. To support multiple instances of graphics engine,
nvgpu needs to initialize nvgpu_gr after number of engine instances
have been enumerated in poweron path.
Hence move nvgpu_gr_alloc() to poweron path and after gr manager has
been initialized.
Some of the members of nvgpu_gr are initialized in probe path and they
too are in OS specific code. Move them to common code in
nvgpu_gr_alloc()
Add field fecs_feature_override_ecc_val to struct gk20a to store the
override flag read from device tree. This flag is later copied to
nvgpu_gr in poweron path.
Update tpc_pg_mask_store() to check for g->gr being NULL before
accessing golden image pointer.
Update tpc_fs_mask_store() to return error if g->gr is not initialized.
This path needs nvgpu_gr struct initialized. Also fix the incorrect
NULL pointer check in tpc_fs_mask_store() which breaks the write path
to this sysfs.
Jira NVGPU-5648
Change-Id: Ifa2f66f3663dc2f7c8891cb03b25e997e148ab06
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2397259
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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While booting LS falcons, gr.falcon.bind_instblk gops is
used to bind WPR VA to gr falcon. Only FECS_METHOD must be
used to bind instblks. But at this point FECS falcon is not loaded
and running. Hence FECS_METHOD cannot be used to bind this instblk.
Besides that, this code is not required
for successful falcon boot and functioning of chips other
than gm20b.
JIRA NVGPU-5323
Change-Id: I148ccc77d65d5f01adbba6261369e7a292dccfc3
Signed-off-by: smadhavan <smadhavan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2369736
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This patch removes the reporting of _ECC_CORRECTED errors which are
not applicable to GV11B. Specifically, this patch removes the code
related to the reporting of the following service IDs:
NVGUARD_SERVICE_IGPU_SM_SWERR_LRF_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_SM_SWERR_CBU_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_PMU_SWERR_FALCON_DMEM_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_GPCCS_SWERR_FALCON_DMEM_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_FECS_SWERR_FALCON_DMEM_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_GCC_SWERR_L15_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_MMU_SWERR_L1TLB_FA_DATA_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_MMU_SWERR_L1TLB_SA_DATA_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_HUBMMU_SWERR_L2TLB_SA_DATA_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_HUBMMU_SWERR_TLB_SA_DATA_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_HUBMMU_SWERR_PTE_DATA_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_HUBMMU_SWERR_PDE0_DATA_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_SM_SWERR_ICACHE_L0_DATA_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_SM_SWERR_L1_DATA_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_SM_SWERR_ICACHE_L0_PREDECODE_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_SM_SWERR_ICACHE_L1_DATA_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_SM_SWERR_ICACHE_L1_PREDECODE_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_SM_SWERR_L1_TAG_MISS_FIFO_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_SM_SWERR_L1_TAG_S2R_PIXPRF_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_LTC_SWERR_CACHE_TSTG_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_LTC_SWERR_CACHE_RSTG_ECC_CORRECTED
NVGUARD_SERVICE_IGPU_LTC_SWERR_CACHE_DSTG_BE_ECC_CORRECTED
Bug 200616002
Change-Id: I199c396f9f6a6be007bd6d3c556199b5a73c3c91
Signed-off-by: Rajesh Devaraj <rdevaraj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2349587
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Antony Clince Alex <aalex@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
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Fix what unit tests can be easily fixed, but disable some others. It's
not clear why the MM related tests started failing - there's really zero
reason for this. The list of disable tests are primarily engine related
but there are some others that get inflenced by the device and engine
structure.
test_poweroff.init_poweroff=2
test_is_stall_and_eng_intr_pending.intr_is_stall_and_eng_intr_pending=2
test_isr_nonstall.isr_nonstall=2
test_isr_stall.isr_stall=2
test_engine_enum_from_type.enum_from_type=2
test_engine_find_busy_doing_ctxsw.find_busy_doing_ctxsw=2
test_engine_get_active_eng_info.get_active_eng_info=2
test_engine_get_fast_ce_runlist_id.get_fast_ce_runlist_id=2
test_engine_get_gr_runlist_id.get_gr_runlist_id=2
test_engine_get_mask_on_id.get_mask_on_id=2
test_engine_get_runlist_busy_engines.get_runlist_busy_engines=2
test_engine_ids.ids=2
test_engine_init_info.init_info=2
test_engine_interrupt_mask.interrupt_mask=2
test_engine_is_valid_runlist_id.is_valid_runlist_id=2
test_engine_mmu_fault_id.mmu_fault_id=2
test_engine_mmu_fault_id_veid.mmu_fault_id_veid=2
test_engine_setup_sw.setup_sw=2
test_engine_status.status=2
test_fifo_init_support.init_support=2
test_fifo_remove_support.remove_support=2
test_gp10b_engine_init_ce_info.engine_init_ce_info=2
test_nvgpu_mem_iommu_translate.mem_iommu_translate=2
test_nvgpu_mem_phys_ops.nvgpu_mem_phys_ops=2
And delete unit tests for functions that no longer exist:
test_device_info_parse_enum.top_device_info_parse_enum
test_get_device_info.top_get_device_info
test_get_num_engine_type_entries.top_get_num_engine_type_entries
test_is_engine_ce.top_is_engine_ce
test_is_engine_gr.top_is_engine_gr
JIRA NVGPU-5421
Change-Id: I343c0b1ea44c472b22356c896672153fc889ffc0
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2355300
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
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Many tests used various incarnations of the mock register framework.
This was based on a dump of gv11b registers. Tests that greatly
benefitted from having generally sane register values all rely
heavily on this framework.
However, every test essentially did their own thing. This was not
efficient and has caused a some issues in cleaning up the device and
host code.
Therefore introduce a much leaner and simplified register framework.
All unit tests now automatically get a good subset of the gv11b
registers auto-populated. As part of this also populate the HAL with
a nvgpu_detect_chip() call. Many tests can now _probably_ have all
their HAL init (except dummy HAL stuff) deleted. But this does
require a few fixups here and there to set HALs to NULL where tests
expect HALs to be NULL by default.
Where necessary HALs are cleared with a memset to prevent unwanted
code from executing.
Overall, this imposes a far smaller burden on tests to initialize
their environments.
Something to consider for the future, though, is how to handle
supporting multiple chips in the unit test world.
JIRA NVGPU-5422
Change-Id: Icf1a63f728e9c5671ee0fdb726c235ffbd2843e2
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2335334
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Currently, we are performing obj ctx alloction for bellow classes
1. VOLTA_COMPUTE_A
2. VOLTA_DMA_COPY_A
3. VOLTA_CHANNEL_GPFIFO_A
In safety, we use Async CE but not GRCE.
So allocating obj context only for COMPUTE_A and return success(0) for
all other valid classes, after setting class in the channel struct.
Jira NVGPU-4378
Change-Id: Ie99872e062cc66f9ddf699397a13df85c3d8d59e
Signed-off-by: sagar <skadamati@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2287486
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Update gr_test_config_get_pes_tpc_mask() to return 0x2F when called
for third time.
There are 2 PES in a GPC. So essentially we want to cover below two
cases
1. pes_tpc_count[pes0][gpc0] > pes_tpc_count[pes1][gpc0]
2. pes_tpc_count[pes0][gpc0] < pes_tpc_count[pes1][gpc0]
Also, run gr_test_diff_gpc_skip_mask() before gr_test_diff_pes_tpc_mask()
so that gpc_skip_mask calculation can generate above two cases first.
Jira NVGPU-4778
Change-Id: I1c34bbc36b0e126d34529725b6c45b59b7e66b67
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2277156
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To achieve permanent fault coverage, the CTAs launched by
each kernel in the mission and redundant contexts must execute on
different hardware resources. This feature proposes modifications
in the software to modify the virtual SM id to TPC mapping across
the mission and redundant contexts. The virtual SM identifier to TPC
mapping is done by nvgpu when setting up the patch context.
The recommendation for the redundant setting is to offset the
assignment by one TPC, and not by one GPC. This will ensure that both
GPC and TPC diversity. The SM and Quadrant diversity will happen
naturally. For kernels with few CTAs, the diversity is guaranteed
to be 100%. In case of completely random CTA allocation,
e.g. large number of CTAs in the waiting queue, the diversity is
1 - 1/#SM, or 87.5% for GV11B, 97.9% for TU104.
Added NvGpu CFLAGS to enable/disable the SM diversity support
"CONFIG_NVGPU_SM_DIVERSITY".
This support is only enabled on gv11b and tu104 QNX non safety build.
JIRA NVGPU-4685
Change-Id: I8e3eaa72d8cf7aff97f61e4c2abd10b2afe0fe8b
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2268026
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Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-by: Shashank Singh <shashsingh@nvidia.com>
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Test case test_gr_setup_set_preemption_mode emulates user mode sequence
to set the preemption mode once after creating the context. This test is
used to show that there is no race or deadlock involved while setting
the preemption mode from user space.
This test is used to prove one of the action coming from FMEA of
common.gr unit. Hence update the test type to include "Safety".
Jira NVGPU-4125
Change-Id: I3153772dfe790e6e4dba99dd94fbfd40c9d6f129
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2274968
Reviewed-by: Nitin Kumbhar <nkumbhar@nvidia.com>
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