Introduce HAL function gops.mssnvlink.get_links, this function retrieves
the number of nvlinks supported by the chip along with their base
addresses.
Update ga10b_mssnvlink_init_soc_credits to call mssnvlink.get_links.
Jira NVGPU-6641
Change-Id: I4ff857925f126bf41dc83eebc5723403244f66b0
Signed-off-by: Antony Clince Alex <aalex@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2618368
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Make ga10b_init_nvlink_soc_credits OS agnostic by replacing OS
specific functions with corresponding nvgpu wrappers. This function is now
assigned to gops.mssnvlink.init_soc_credits HAL.
Introduce nvgpu wrapper, nvgpu_io_map/unmap to map/unmap specified
physical address range.
Jira NVGPU-6641
Change-Id: I337bc75b8ec36552fe471bf5e42f62c19f67ed4a
Signed-off-by: Antony Clince Alex <aalex@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2618237
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Earlier, buffer metadata support was made dependent on compression.
However that is not required.
Update the enabled flag NVGPU_SUPPORT_BUFFER_METADATA setup for
various hals. Enable it for all from linux characteristics init.
Update REGISTER_BUFFER and GET_BUFFER_INFO ioctls to seggregate
the compile/runtime compression functionality.
If compression is disabled, return error in case comptags are
required else don't fail the REGISTER_BUFFER ioctl.
Bug 200767700
Change-Id: I3850ccc879f180c97b830fb3d652c094b9d28a5b
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2614378
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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
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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The macros defined within the C file in the form
(\
fb_mmu_l2tlb_ecc_status_corrected_err_l2tlb_sa_data_m() |\
fb_mmu_l2tlb_ecc_status_corrected_err_l2tlb1_sa_data_m() \
)
are difficult to detect correctly in libclang based static analyzers.
As a consequence, Hal Checker might be missing some coverage.
Such masks are converted into a static function format to help
mitigate this issue.
Change-Id: Id43e25abda8db4c79f7f6fc604eb6e76e9f6282c
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
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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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Fix PMM litter values for ROP and LTC units.
The ROP unit has been moved from FBP to GPC, hence, introduce new litter
constants:
- GPU_LIT_PERFMON_PMMGPC_ROP_DOMAIN_START
- GPU_LIT_PERFMON_PMMGPC_ROP_DOMAIN_COUNT
Previous PMMFBP_ROP litter constants are removed.
Update GPU_LIT_PERFMON_PMMFBP_LTC_DOMAIN_COUNT to 4.
Jira NVGPU-7204
Change-Id: If3b5e278099ac0d503a3535f1b9b328dc105488b
Signed-off-by: Antony Clince Alex <aalex@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2607544
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GPU HW expects physically contiguous addresses when clearing
the compression bit store in memory. Currently on hypervisor setup,
the DMA_ATTR_FORCE_CONTIGUOUS flag ensures contiguous IPA, but it
is not possible to ensure contiguous physical memory.Disable
compression on virtualized environments until physically contiguous
memory is feasible.
Buffer Metadata support is dependent on compression support.
Move the initialization of NVGPU_SUPPORT_BUFFER_METADATA flag to
common code where NVGPU_SUPPORT_COMPRESSION is initialized.
Bug 200780546
Change-Id: Id94bffc878e275a80948880f0475162d0bb4ddae
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2607830
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- For older chips, nvgpu used to set some registers for ELPG
sequencer settings
- These writes are no longer required post-Turing as these
programming have been updated into the HW default values
itself and the register definitions have been changed to
help improve security as well.
- Set the pmu_setup_elpg HAL to NULL
Bug 200766930
Bug 3389932
Change-Id: I3820b14c8491f8180b2feb28cb38e23462546655
Signed-off-by: Divya <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2607599
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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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Removing SW methods completely requires CUDA changes in perforce.
Because of stage-main and module codelines infrastructure this cannot be
done in single series. Hence keep alive couple of SW methods for CUDA
compatibility until SW methods are removed from CUDA code. SW methods
do not perform any action.
Next steps are for CUDA to stop using SW methods. Once that is
integrated this patch can be reverted to completely remove SW method
support in safety build.
Bug 200748548
Change-Id: I2c70a647bec126bab2d8cac4fe10393be8ba0fb9
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2604749
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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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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
- Accessing any PGRAPH registers in GR intr retrigger
ISR routine when ELPG is engaged causes idle snap.
- This idle snap is caught when nvgpu_submit_illegal_class
test is run.
- To avoid access to PGRAPH registers when ELPG is engaged
add elpg protected call for GR intr retrigger and CE ISR
and retrigger HALs
Bug 200777033
Change-Id: Ieef4a423faf79f09476d696c3078b113750548bb
Signed-off-by: Divya Singhatwaria <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2586449
Reviewed-by: Mahantesh Kumbar <mkumbar@nvidia.com>
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- 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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common.fbp has two interfaces to initialize FBP:
1. Public API nvgpu_fbp_init_support
2. HAL fbp.fbp_init_support
nvgpu_fbp_init_support() is only used to initialize HAL
fbp.fbp_init_support. Remove the HAL and use the API directly.
JIRA NVGPU-6644
Change-Id: I2c455e09dbcf5e4fb1dc370b284e4f0d5c678b40
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
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Add Setter and Getter methods for accessing tsg->sm_error_states.
Getter returns a constant pointer for struct nvgpu_tsg_sm_error_state.
This renders it unnecessary to add BVEC for above fields for the struct
in multiple locations. The current design ensures that only a constant
pointer is obtained from the owner unit i.e. FIFO.
The following new methods are added. Both unit tests and BVEC tests
are added for them as well.
nvgpu_tsg_store_sm_error_state
nvgpu_tsg_get_sm_error_state
Jira NVGPU-6947
Change-Id: I82c22a2774862c8579baa41b6fb8292fa164704a
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
(cherry picked from commit 79574638671a0c6efe41cd3423668fcd1bd96826)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2556938
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Update documentation for priv_ring unit based on updated swud
guidelines. This patch is contains a combination of two commits.
Documentation is added for the HAL methods
enable_priv_ring and isr
decode_error_code
enum_ltc
get_fbp_count
get_gpc_count
set_ppriv_timeout_settings
Jira NVGPU-6986
Change-Id: Ifa401dab0f29330ab7db2dcc888edf46a402cc83
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2587227
GVS: Gerrit_Virtual_Submit
(cherry picked from commit 0bdcf425ca58e6d04dceaedbb48f3adef43a870a)
(cherry picked from commit ca44c09df60791db2ea6a6a80bc807f6c7eba494)
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This patch fixes a bug in the cbc initialization code for ga10b,
where it was erroneously assumed that a fixed ltc count of only one
should be used for historical reasons. For volta and later, the full
ltc count should be used in cbc-related computation.
Ensure
- CBC base address is 64K aligned
- CBC start address lies within CBC allocated memory
Check CBC is marked safe only for silicon platform.
Bug 3353418
Change-Id: I5edee2a78dc9e8c149e111a9f088a57e0154f5c2
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2585778
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These errors are now actually expected from code that counts number of
sys/gpc/fbp perfmons after first context creation. Nvgpu tries to count
them by register offset lookup in context image and counts perfmons until
invalid offset is found.
nvgpu_gr_hwmp_map_find_priv_offset no longer prints an error message.
The correct error condition is moved to gr_exec_reg_ops
Bug 200755537
Change-Id: Ib5c6ccd39275b2b06e3f8bce4878a3234478a780
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2586228
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