In order to maintain separate mappings of GR TSG and global context
buffers for different subcontexts, we need to separate the memory
struct and the mapping struct for the buffers. This patch moves
the mappings of all GR ctx buffers to new structure
nvgpu_gr_ctx_mappings.
This will be instantiated per subcontext in the upcoming patches.
Summary of changes:
1. Various context buffers were allocated and mapped separately.
All TSG context buffers are now stored in gr_ctx->mem[] array
since allocation and mapping is unified for them.
2. Mapping/unmapping and querying the GPU VA of the context
buffers is now handled in ctx_mappings unit. Structure
nvgpu_gr_ctx_mappings in nvgpu_gr_ctx holds the maps.
On ALLOC_OBJ_CTX this struct is instantiated and deleted
on free_gr_ctx.
3. Introduce mapping flags for TSG and global context buffers.
This is to map different buffers with different caching
attribute. Map all buffers as cacheable except
PRIV_ACCESS_MAP, RTV_CIRCULAR_BUFFER, FECS_TRACE, GR CTX
and PATCH ctx buffers. Map all buffers as privileged.
4. Wherever VM or GPU VA is passed in the obj_ctx allocation
functions, they are now replaced by nvgpu_gr_ctx_mappings.
5. free_gr_ctx API need not accept the VM as mappings struct
will hold the VM. mappings struct will be kept in gr_ctx.
6. Move preemption buffers allocation logic out of
nvgpu_gr_obj_ctx_set_graphics_preemption_mode.
7. set_preemption_mode and gr_gk20a_update_hwpm_ctxsw_mode
functions need update to ensure buffers are allocated
and mapped.
8. Keep the unit tests and documentation updated.
With these changes there is clear seggregation of allocation and
mapping of GR context buffers. This will simplify further change
to add multiple address spaces support. With multiple address
spaces in a TSG, subcontexts created after first subcontext
just need to map the buffers.
Bug 3677982
Change-Id: I3cd5f1311dd85aad1cf547da8fa45293fb7a7cb3
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2712222
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To add GL/VK support for shader debugging via the SM trap handler
functionality, a write operation to the following PRI registers need to
be allowed in all chips (ga10b, gv11b, gm20b, gp10b):
- NV_PGRAPH_PRI_GPCS_MMU_DEBUG_CTRL
- NV_PGRAPH_PRI_GPCS_TPCS_SM_SCH_MACRO_SCHED
- NV_PGRAPH_PRI_GPCS_TPCS_SMS_DBGR_CONTROL0
- NV_PGRAPH_PRI_GPCS_TPCS_SMS_HWW_WARP_ESR_REPORT_MASK
- NV_PGRAPH_PRI_GPCS_TPCS_SMS_HWW_GLOBAL_ESR_REPORT_MASK
In this patch, we are adding the above registers into allowlist, if they
were absent. Note that these registers included only in non-safety using
CONFIG_NVGPU_SET_FALCON_ACCESS_MAP flag.
Bug 3642131
Change-Id: I5f62731944b6b3e059afa80a491c3cf5c3656f60
Signed-off-by: Rajesh Devaraj <rdevaraj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2715799
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The emulate mode support is determined after chip detect and is flagged
by using NVGPU_SUPPORT_EMULATE_MODE flag. The present logic prevents
user from configuring the emulate mode sysfs knobs if this flag is not
set, however the emulate mode usecase requires the user to configure the
syfs knob prior to power-on, hence defer emulate mode check to a later
stage after chip detect.
Bug 3621460
Change-Id: If522527542fa8d7e95ccbcff43b74adbb9e976e6
Signed-off-by: Antony Clince Alex <aalex@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2703953
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Reviewed-by: Ankur Kishore <ankkishore@nvidia.com>
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Add new HAL gops.gr.init.set_default_gfx_regs() to set graphics specific
PRI values for graphics contexts in function nvgpu_gr_obj_ctx_alloc().
Add new HAL gops.gr.init.capture_gfx_regs() to capture and save init
values for the PRIs. Add new struct nvgpu_gr_obj_ctx_gfx_regs to hold the
PRI init values.
Define HAL functions gv11b_gr_init_set_default_gfx_regs() and
gv11b_gr_init_capture_gfx_regs(). Set the HAL functions for
gv11b and ga10b.
Register accessors required to set PRIs are auto-generated.
Bug 3506078
Change-Id: I4c2843a274f3c924e402541e600e104ed0c9ed1c
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2671598
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gops.gr.init.set_default_compute_regs() HAL configures compute specific
settings in safety build and this eliminates need of using SW methods.
Define this HAL for Orin safety build and configure sked check related
registers from the HAL. Other settings done on gv11b are no more
applicable for ga10b safety.
Bug 3456240
Change-Id: Ic125cdf414a5402511949015e3424b8cb2dab1e0
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2646284
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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>
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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>
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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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After CONFIG_UBSAN kernel compilation flag to know any shifting
cause overflow or not enablement ,this is identified.
The register "gr_fe_tpc_fs_r(gpc_index)" is read only after
Volta. The gops where we are computing the index is not needed.
Bug 200727116
Change-Id: Ib2306103389ba9df77fd59d012ec70e775104989
Signed-off-by: dt <dt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2573296
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This CL covers the following modifications,
1) Added logic to skip the graphics unit specific sw context load
register write during context creation when MIG is enabled.
2) Added logic to skip the graphics unit specific sw method
register write when MIG is enabled.
3) Added logic to skip the graphics unit specific slcg and blcg gr
register write when MIG is enabled.
4) Fixed some priv errors observed during MIG boot.
5) Added MIG Physical support for GPU count < 1.
6) Host clk register access is not allowed for GA100.
So skipped to access host clk register.
7) Added utiliy api - nvgpu_gr_exec_with_ret_for_all_instances()
8) Added gr_pri_mme_shadow_ram_index_nvclass_v() reg field
to identify the sw method class number.
Bug 200649233
Change-Id: Ie434226f007ee5df75a506fedeeb10c3d6e227a3
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2549811
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1. misra_c_2012_rule_8_6_violation: "gm20b_gr_init_fe_go_idle_timeout"
is declared but never defined.
Fix by adding config CONFIG_NVGPU_HAL_NON_FUSA for header declaration
of "gm20b_gr_init_fe_go_idle_timeout"
2. misra_c_2012_rule_5_7_violation: Identifier "ops" is already used
to represent a type.
Fix by renaming local variable ops to nonstall_ops in
gm20b_gr_intr_nonstall_isr()
3. missing_default: No default case found for the switch statement
"switch (offset << 2)"
Fix by adding break and default statements to switch case in
gv11b_gr_intr_handle_sw_method()
Jira NVGPU-6779
Change-Id: I8df097ec66479edcd2e81bf46bab5b5db52ac8c8
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2541246
(cherry picked from commit c4d9fe0449f8c6ee209051abfe58c6f3a745808d)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2543012
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GFxP preemption for graphics contexts is not supported in safety.
But the support was enabled along with CONFIG_NVGPU_GRAPHICS since GFxP
preemption was protected under same config.
Add a separate config CONFIG_NVGPU_GFXP to protect all GFxP specific
code, enum values, and HALs.
Disable the config in safety profile.
Jira NVGPU-6893
Change-Id: Iebb5f754a1025dfa6e05a94704bdb8a7123b599a
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2534986
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Some of the RTV circular buffer programming is under GRAPHICS config and
some is under DGPU config. For nvgpu-next, RTV circular buffer is
required even for iGPU so keeping the code under DGPU config does not
make sense.
Move all the code from DGPU config to GRAPHICS config.
Bug 3159973
Change-Id: I8438cc0e25354d27701df2fe44762306a731d8cd
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2524897
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All graphics code is under CONFIG_NVGPU_GRAPHICS and all the HALs are
in non-fusa files. In order to support graphics in safety,
CONFIG_NVGPU_GRAPHICS needs to be enabled. But since most of the HALs
are in non-fusa files, this causes huge compilation problem.
Fix this by moving all graphics specific HALs used on gv11b to fusa
files. Graphics specific HALs not used on gv11b remain in non-fusa files
and need not be protected with GRAPHICS config.
Protect call to nvgpu_pmu_save_zbc() also with config
CONFIG_NVGPU_POWER_PG, since it is implemented under that config.
Delete hal/ltc/ltc_gv11b.c since sole function in this file is moved to
fusa file.
Enable nvgpu_writel_loop() in safety build since it is needed for now.
This will be revisited later once requirements are clearer.
Move below CTXSW methods under CONFIG_NVGPU_NON_FUSA for now. Safety
CTXSW ucode does not support these methods. These too will be revisited
later once requirements are clearer.
NVGPU_GR_FALCON_METHOD_PREEMPT_IMAGE_SIZE
NVGPU_GR_FALCON_METHOD_CTXSW_DISCOVER_ZCULL_IMAGE_SIZE
Jira NVGPU-6460
Change-Id: Ia095a04a9ba67126068aa7193f491ea27477f882
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2513675
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Add separate flag gpu_dbg_gr to enable common.gr specific debugging.
Add this flag to all the existing debug logs that use gpu_dbg_fn or
gpu_dbg_info for debugging. Also add many other debugging logs that
might be helpful in debugging.
Removing debug log in gv11b_gr_init_get_nonpes_aware_tpc() as it dumps
too much data that does not seem useful.
Batch all interrupt enable functions in gr_init_setup_hw() together for
readability.
Jira NVGPU-5648
Change-Id: I0b857650122cdb1f974b452d28c26e7f142baf61
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2411740
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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
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Below functions in common.gr hal subunits include unnecessary
asserts to ensure value is not truncated when parsing into U32 size.
gm20b_gr_init_commit_global_attrib_cb()
gp10b_gr_init_commit_global_bundle_cb()
gp10b_gr_init_commit_global_pagepool()
gv11b_gr_init_commit_global_attrib_cb()
Make use of nvgpu_safe_cast_u64_to_u32() and remove unnecessary
asserts
gp10b_gr_init_commit_global_bundle_cb() function checks if size <=
U32_MAX value. But since size is declared as u32, it will always be
<= U32_MAX value so there is no point in the check.
Remove unnecessary check.
Jira NVGPU-4778
Change-Id: I9562afd1b31c3c6b095f607cbdf725d33d87effb
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2279898
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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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Add new unit test to cover gops.gr.init.ecc_scrub_reg HAL function
gops.gr.init.ecc_scrub_reg HAL can generate TIMEOUT errors which are
not returned to caller currently. Update this HAL to return int value
for error propagation.
Jira NVGPU-4458
Change-Id: I98f4d5af2ef17cc4301951fec4d660638c8ef72c
Signed-off-by: dnibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2265456
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- nvgpu_gr_ctx_load_golden_ctx_image() does not return any error, change
the return type to void
- Check for preemption modes greater than CILP in
nvgpu_gr_ctx_check_valid_preemption_mode
- Check if received class is valid or not in
nvgpu_gr_setup_set_preemption_mode
- Compile out entire nvgpu_gr_obj_ctx_init_ctxsw_preemption_mode since
it is really not doing anything in safety
- Remove the switch statement in nvgpu_gr_obj_ctx_set_compute_preemption_mode
since it is not possible to receive any other value than supported.
Previous function calls ensure that input values are validated.
- nvgpu_gr_obj_ctx_commit_global_ctx_buffers() does not return any
error, change the return type to void
- gops.gr.init.preemption_state HAL is not needed in safety since it
only configures gfxp related timeout
- remove redundant call to gops.gr.init.wait_idle in
nvgpu_gr_obj_ctx_commit_hw_state. We trigger wait despite earlier
failure in same function call.
Jira NVGPU-4457
Change-Id: I06a474ef7cc1b16fbc3846e0cad1cda6bb2bf2af
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2260938
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Move code used only with graphics under
CONFIG_NVGPU_GRAPHICS check.
gm20b_gr_init_load_sw_bundle_init hal get called
without CONFIG_NVGPU_GR_GOLDEN_CTX_VERIFICATION check.
Remove dead code in
nvgpu_gr_ctx_check_valid_preemption_mode function.
Jira NVGPU-3968
Change-Id: I399126123006ae44dba29b3c08378d11fe82e543
Signed-off-by: vinodg <vinodg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2247346
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