Currently reading temperature value depeads on therm pstate
board objects. In absence of pstate reading temperature
from therm get status will be failed which will cause GVS
failure in NvRmGpuTest_Device_GetTemperature test.
This change will add support to read temperature from
therm sensor_00 register but this will have following
limitation:
- NV_THERM_I2CS_SENSOR_00 doesn't support fractional
precision.
- It doesn't support negative temperatures.
BUG-200736830
Signed-off-by: Ramesh Mylavarapu <rmylavarapu@nvidia.com>
Change-Id: I25e577dac9029fcd787a6f71957dbeefd6fe43dd
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2584269
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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GVS: Gerrit_Virtual_Submit
There is HW specific limit on number of channel entries that can be
added for each TSG entry in runlist. Right now there is no checking
to enforce this from SW and hence if User binds more than supported
channels to same TSG, invalid TSG formation error interrupts are
generated.
Fix this by adding appropriate checks in below steps :
- Add new field ch_count to struct nvgpu_tsg to keep track of
channels bound to TSG.
- Define new hal gops.runlist.get_max_channels_per_tsg() to retrieve
HW specific maximum channel count per TSG.
- Implement the HAL for gk20a and gv11b chips, and assign new HALs for
all chips appropriately.
- Increment ch_count while binding the channel to TSG and decrement it
while unbinding.
- While binding channel to TSG, Check if current channel count is
already equal to max channel count. If yes, print an error and bail
out.
Bug 200763991
Change-Id: Ic5f17a52e0fb171d1c020bf4f085f57cdb95f923
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2582095
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GVS: Gerrit_Virtual_Submit
Add support for powering off IGPU for switching between
legacy to SMC mode/vice-versa or changing SMC configuration.
The power off can be issued as follows
echo 0 > /dev/nvgpu/igpu0/power
The following steps are done during a poweroff.
1) Deterministic channel idle
2) Acquire write_lock on l->busy semaphore.
3) Wait till power_usage decrements to indicate 0 active jobs.
4) Invoke pm_runtime_put_sync_suspend()
5) Invoke nvgpu_gr_remove_support() to clear existing GR memory.
6) Release write_lock on l->busy
7) Deterministic channel unidle.
Part of the sequence matches that of the gk20a_do_idle code.
The common parts are extracted into new functions
gk20a_block_new_jobs_and_idle() and gk20a_unblock_jobs()
For joint-rail case, the current implementation, does a railgate
and then sets pm_runtime_set_autosuspend_delay(-1) to disable
regular runtime resume/suspend.
Remove clearing of NVGPU_SUPPORT_MIG status during state change
ias it leads to inconsistencies.
Jira NVGPU-6920
Change-Id: I0b3eb3278176122ac061c1e8a94ebfb3c17c3925
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2578501
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GVS: Gerrit_Virtual_Submit
ECC counter structures are freed without removing the node from the
stats_list. This can lead to invalid access due to dangling pointers.
Update the ecc counter free logic to set them to NULL upon free, to
remove them from stats_list and free them by validation.
Also updated some of the ecc init paths where error was not propa-
gated to callers and full ecc counters deallocation was not done.
Now, calling unit ecc_free from any context (with counters alloc-
ated or not) is harmless as requisite checks are in place.
bug 3326612
bug 3345977
Change-Id: I05eb6ed226cff9197ad37776912da9dcb7e0716d
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2565264
Tested-by: Ashish Mhetre <amhetre@nvidia.com>
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GVS: Gerrit_Virtual_Submit
Currently, the ECC errors go unnoticed. ECC errors in GR are handled
by incrementing the ecc counters and clearing the intr registers. No
action is taken bassed on the ECC counters. The ECC intr prints are
also not printed by default.
Ideally, the ECC errors should trigger recovery if they cross the
error threshold. While we wait for the ideal ECC handling, convert
the conditional ECC prints to error messages.
JIRA NVGPU-7058
Change-Id: I2e54aeb5aef1d76dd6d4162eedd21cd529089b54
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2573029
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
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GVS: Gerrit_Virtual_Submit
Tested-by: V M S Seeta Rama Raju Mudundi <srajum@nvidia.com>
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Currently, cbc init and compression tests are failing because MMU marks
cbc to be not safe.
- Modify cbc.get_base_divisor hal to use ltc_count = 1 for Tegra devices
- Update fb.cbc_configure to write compbit_backing_size value to
fb_mmu_cbc_top register.
- After config confirm that CBC is marked safe.
Bug 3353418
Change-Id: I1e9c27f47f7bfcf476f2499231951382e2e8653d
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2570550
Reviewed-by: Sami Kiminki <skiminki@nvidia.com>
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Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
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GVS: Gerrit_Virtual_Submit
- Add gops_fbp_fs and gops_gpc_pg struct
- Add HALs to write to NV_FUSE_CTRL_OPT_FBP and
NV_FUSE_CTRL_OPT_GPC fuses needed for floorsweeping
- Add set_fbp_mask and set_gpc_mask to probe FBP and GPC mask
respectively during gpu probe
- Add sysfs node: fbp_fs_mask and gpc_fs_mask to store
FBP and GPC floorsweeping mask sent from userspace
- Move the floorsweeping programming early in NVGPU’s GPU init
function and then issue a PRI init.
JIRA NVGPU-6433
Change-Id: I84764d625c69914c107e1e8c7f29c476c2f64f78
Signed-off-by: Divya Singhatwaria <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2499571
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Enable nvriscv debug buffer feature in NVGPU.
Debug buffer is a feature to print the debug log from ucode onto console
in real time.
Debug buffer feature uses the DMEM, queue and SWGEN1 interrupt to share
ucode debug data with NVGPU.
Ucode writes debug message to DMEM and updates offset in queue to trigger
interrupt to NVGPU.
NVGPU copies the debug message from DMEM to local buffer to process and
print onto console.
Debug buffer feature is added under falcon unit and required engine
can utilize the feature by providing required param through public
functions.
Currently GA10B NVRISCV NS/LS PMU ucode has support for this feature
and enabled support on NVGPU side by adding required changes, with this
feature enabled, it is now possible to see prints in real time.
JIRA NVGPU-6959
Change-Id: I9d46020470285b490b6bc876204f62698055b1ec
Signed-off-by: mkumbar <mkumbar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2548951
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- Fix GSP/PMU registers priv errors which are seen as part of boot sequence.
- Couple of GSP/PMU Falcon/NVRISCV registers are allowed to access
upon NVRISCV bootrom completion but these registers were needed
to configure on legacy chips to bootstrap/configure Falcon.
- Add is_falcon2_enabled or NVGPU_PMU_NEXT_CORE_ENABLED check
to skip these registers.
JIRA NVGPU-7025
Change-Id: I087a477ade6736398dea113f89894a0ff73ae647
Signed-off-by: mkumbar <mkumbar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2553127
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Added below IVC commands to support VAB on HV.
* TEGRA_VGPU_CMD_FB_VAB_RESERVE - Enable & Configure VAB tracking
* TEGRA_VGPU_CMD_FB_VAB_FLUSH_STATE - Dump VAB to user buffer
* TEGRA_VGPU_CMD_FB_VAB_RELEASE - Disable VAB tracking
Also set HAL and enable VAB for ga10b vgpu.
Jira GVSCI-4619
Change-Id: Id7564611c24740ab8613e4baa420ee58fb52759a
Signed-off-by: Sagar Kadamati <skadamati@nvidia.com>
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2507268
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Changes:
- This change will only init gsp software
state, nvgpu_gsp_bootstrap need to be called.
- CONFIG_NVGPU_GSP_SCHEDULER flag is created to
compile out the gsp scheduler code when needed.
- Created GSP engine reset which is needed when
ACR completed execution and need to load gsp fw.
NVGPU-6783
Signed-off-by: Ramesh Mylavarapu <rmylavarapu@nvidia.com>
Change-Id: I2ce43e512b01df59443559eab621ed39868ad158
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2554267
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Issue observed:
- In GA10B, it was observed that after recovery happens
ELPG does not engage.
- It was because, after CE reset, when nvgpu_submit_twod test
was run to engage ELPG, IDLE_FLIPPED_PWR_OFF signal was asserted.
- This means that when ELPG was engaged (engine is in PWR_OFF),
some idle signal flips (becomes non-idle) and this causes
IDLE_SNAP. After IDLE_SNAP is hit, ELPG will not engage further.
- After debugging from WAVES, it was observed that:
LCE0/LCE1 are not done with the reset sequence.
- The state of these LCE is RESET0. A pri request (pri read
to NV_CE_PCE_MAP register in CE) is seen that kicks it out of
RESET0. After this state, it goes through few states to update
some internal states (states RESET1/RESET2/PCE_MAP etc) and then
eventually settles down to IDLE state.
Solution:
- Read ce_pce_map_r register in recovery sequence (after ce reset).
- It is observed that when this read is added recovery is complete
and post that when nvgpu_submit_two test is executed, ELPG is engaging.
- This means that a pri read is needed after CE reset so that it settles
to idle state properly and post that ELPG can engage properly.
Bug 200734258
Change-Id: I5bb84921ca62a740fde81ffe6c29ccde4ebb341b
Signed-off-by: Divya Singhatwaria <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2554493
Reviewed-by: svcacv <svcacv@nvidia.com>
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Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
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GVS: Gerrit_Virtual_Submit
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On all chips except ga10b, the number of ROP, L2 units per FBP
were in sync, hence, their FS masks could be represented by a single
fuse register NV_FUSE_STATUS_OPT_ROP_L2_FBP. However, on ga10b, the ROP
unit was moved out from FBP to GPC and it no longer matches the number
of L2 units, so the previous fuse register was broken into two -
NV_FUSE_CTRL_OPT_LTC_FBP, NV_FUSE_CTRL_OPT_ROP_GPC.
At present, the driver reads the NV_FUSE_CTRL_OPT_ROP_GPC register
and reports incorrect L2 mask. Introduce HAL function
ga10b_fuse_status_opt_l2_fbp to fix this.
In addition, rename fields and functions to exclusively fetch L2 masks,
this should help accommadate ga10b and future chips in which L2 and ROP units
are not in same. As part of this, the following functions and
fields have been renamed.
- nvgpu_fbp_get_rop_l2_en_mask => nvgpu_fbp_get_l2_en_mask
- fuse.fuse_status_opt_rop_l2_fbp => fuse.fuse_status_opt_l2_fbp
- nvgpu_fbp.fbp_rop_l2_en_mask => nvgpu_fbp.fbp_l2_en_mask
The HAL ga10b_fuse_status_opt_rop_gpc is removed as rop mask is not
used anywhere in the driver nor exposed to userspace.
Bug 200737717
Bug 200747149
Change-Id: If40fe7ecd1f47c23f7683369a60d8dd686590ca4
Signed-off-by: Antony Clince Alex <aalex@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2551998
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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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common.cic unit is divided into common.cic.mon and common.cic.rm
based on rm and mon process split.
CIC-mon subunit includes the code which is utilized in critical
interrupt handling path like initialization, error detection and
error reporting path. CIC-rm subunit includes the code corresponding
to rest of interrupt handling(like collecting error debug data from
registers) and ISR status management (status of deferred interrupts).
Split the CIC APIs and data-members into above two subunits.
JIRA NVGPU-6899
Change-Id: I151b59105ff570607c4a62e974785e9c1323ef69
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2551897
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common.ptimer unit right now exposes two APIs -
scale_ptimer() to scale the timer
ptimer_scalingfactor10x() to get the scaling factor
receiving scaling factor is not really necessary for user of
common.ptimer since it can be internally calculated in scale_ptimer()
function itself.
Hence make ptimer_scalingfactor10x() static and rename public API
scale_ptimer() to nvgpu_ptimer_scale()
nvgpu_ptimer_scale() will not accept timeout value as parameter
and return scaled timeout value in another pointer parameter.
Error code is returned if timeout value is invalid.
Jira NVGPU-6394
Change-Id: Ib882d99f6096c3af5f96eef298d713fb5e36dd87
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2546970
(cherry picked from commit 2da7c918efe91046818c83481664312e194ead8e)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2551334
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Replace all nvgpu_next functions/structs either by 1) collapsing them
into nvgpu legacy functions/structs 2) renaming them as follows:
- nvgpu_next_*() => nvgpu_(ga10b/ga100)_*()
- nvgpu_next_*() => (ga10b/ga100)_*()
- nvgpu_next_*() => nvgpu_*() [only if this doesn't cause collision]
- nvgpu_next_*() = > nvgpu_*_extra()
Create hal.sim unit and move Ampere+ SIM code into it.
Jira NVGPU-4771
Change-Id: I215594a0d0df4bd663bd875a0d0db47bcb9ff6a2
Signed-off-by: Antony Clince Alex <aalex@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2548056
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Mahantesh Kumbar <mkumbar@nvidia.com>
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The CONFIG_NVGPU_NEXT config is no longer required now that ga10b and
ga100 sources have been collapsed. However, the ga100, ga10b sources
are not safety certified, so mark them as NON_FUSA by replacing
CONFIG_NVGPU_NEXT with CONFIG_NVGPU_NON_FUSA.
Move CONFIG_NVGPU_MIG to Makefile.linux.config and enable MIG support
by default on standard build.
Jira NVGPU-4771
Change-Id: Idc5861fe71d9d510766cf242c6858e2faf97d7d0
Signed-off-by: Antony Clince Alex <aalex@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2547092
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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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Query the num_perfmon requires golden context to be ready. Accessing
golden context might require gr_instance_id, specific to a GR engine.
On TOT, get_num_hwpm_perfmon() called from perfmon HAL which might
require to call nvgpu_gr_exec_with_err_for_instance().
It internally calls nvgpu_grmgr_config_gr_remap_window() to change
gr_window_remap register points to a current gr_instance_id for MIG.
This approach indirectly mandates to call
nvgpu_gr_exec_with_err_for_instance() which can be
completely avoided. get_num_hwpm_perfmon() is just a query call
which can be moved after the golden context creation.
Using this logic, we can avoid unnecessary invocation of
nvgpu_gr_exec_with_err_for_instance() during perform specific
HAL accesses.
1) Moved get_num_hwpm_perfmon() after golden context creation.
2) Added nvgpu_assert() if (g->num_sys_perfmon == 0U).
JIRA NVGPU-5656
Change-Id: I59a6ab4df93763adbc0765fa5e4d1712b2477521
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2542438
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