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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Reviewed-by: Lakshmanan M <lm@nvidia.com>
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Historically, nvgpu has supported a struct gk20a_dmabuf_priv and
associated it with a dmabuf instance. This was aided by Nvmap's
dma_buf_set_drv_data() and dma_buf_get_drvdata() APIs. gk20a_dmabuf_priv
is used to store Comptag IDs i.e. (1 per 64 kb) as well as can store the
dmabuf attachments to avoid multiple attach/detach calls. dma_buf_set_drv_data()
allows Nvgpu to associate an instance of struct gk20a_dmabuf_priv with the instance
of the dmabuf and also provide a release callback to delete the
instance when the last reference to the dmabuf is put. Nvmap accomplishes
this by modifying the struct dma_buf_ops definition to include the
set_drv_data and get_drv_data callbacks in the kernel code.
The above approach won't work for upstream Kstable and Nvmap
plans to remove these APIs for upcoming newer downstream kernels as
well.
In order to implement the same functionality without depending on Nvmap,
Nvgpu will implement a release chaining mechanism. Dmabuf's 'ops' pointer
points to a constant struct and hence a whole copy of the ops is made
followed by altering the new copy's release pointer.
struct gk20a_dmabuf_priv stores the new copy and the dmabuf's 'ops' is
changed to point to this. This allows Nvgpu to retrieve
the corresponding gk20a_dmabuf_priv instance using container_of.
Nvgpu's custom release callback will invoke the original release
callback of the dmabuf's producer as a last step, thus completing the
full circle. In case, the driver is removed, Nvgpu restores the
dmabuf's 'ops' back to the original state. In order to accomplish this,
every instance of a struct nvgpu_os_linux maintains a linkedlist of the
gk20a_dma_buf instances. During the driver removal, this linkedlist is
traversed and the corresponding dmabuf's 'ops' pointer is put back to
its original state followed by freeing of this instance.
Nvgpu is a producer of dmabuf's for vidmem and needs
a way to check whether the given dmabuf belongs to itself.
Its no longer reliable to depend on a comparision of
the 'ops' pointer. Instead dmabuf_export_info() allows a name to be set by the
exporter and this can be used to compare with a memory location
that belongs to Nvgpu. Similarly for sysmem dmabufs, Nvmap makes a
similar change in the way it identifies whether a dmabuf belongs to
itself.
Removed NVGPU_DMABUF_HAS_DRVDATA and moved to a unified mechanism for
both downstream as well as upstream kernel.
Some of the other changes in this file include the following.
1) Deletion of dmabuf.c and moving its contents over to dmabuf_priv.c
2) Replacing gk20a_mm_pin_has_drvdata with nvgpu_mm_pin_privdata and
vice-versa for unpin.
Bug 2878569
Change-Id: Icf8e79b05a25ad5a85f478c3ee0fc1eb7747e22d
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2341001
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Puneet Saxena <puneets@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
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Aggressive sync destroy is used on some platforms where the amount of
syncpoints is limited. It can cause sync objects to get allocated and
freed in the submit path and when jobs are cleaned up, so require
deferred cleanup. Allocations do not belong to job tracking in a
deterministic submit path.
Although this has been technically allowed before, deterministic
channels have likely not been a priority on those old platforms with
aggressive sync destroy set.
Update virtualized gp10b platform data to match on a gp10b-vgpu compat
string instead of gk20a-vgpu. gk20a (Tegra T124) hasn't been supported
for a long time. Delete the aggressive sync destroy field from this
platform. It's got enough syncpoints to not dynamically allocate them;
having this property set for gp10b-vgpu has likely been a mistake.
This is not a completely pure cherry-pick: also extend the gpu
characteristics to not advertise full deterministic submit support when
aggressive sync destroy is off. This platform flag cannot be adjusted by
the user unlike many other flags.
Jira NVGPU-4548
Change-Id: I283f546d48b79ac94b943d88e5dce55710858330
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2322042
(cherry picked from commit b1ba2b997b2174e365bcb0782ef3e67260ff9e57)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2328411
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Linux kernel has a default 32-bit segmentation boundary for
any device that doesn't explicitly configure it. When nvgpu
tries to allocate a larger memory > 4GB, iommu_dma_map_sg()
function in the kernel will take this boundary into account
and add an internal padding to the allocated IOVA space:
|<---IOVA space 1--->|<---padding--->|<---IOVA space 2--->|
When DMA reads/writes the memory using this discountinued
IOVA space, it may end up with accessing the padding part,
instead of the IOVA space 2.
So this patch adds dma_set_seg_boundary() to nvgpu driver,
by maximizing the segmentation boundary up to DMA_BIT_MASK
to ensure a continued IOVA space.
Bug 200558567
Change-Id: I979d56681dddca56f1b02fce83dc81147a6b0d82
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2304150
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Reviewed-by: Puneet Saxena <puneets@nvidia.com>
Reviewed-by: Chris Dragan <kdragan@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
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This is fixing the following misra violation
MISRA 5.1 :
Declaration with identical names.
The first 31 characters of identifiers
"nvgpu_nvhost_syncpt_unit_interface_get_aperture" and
"nvgpu_nvhost_syncpt_unit_interface_get_byte_offset" are identical.
JIRA NVGPU-4811
Change-Id: Ib862c4acd53cf748b47c1edffa91b5f033c08953
Signed-off-by: Dinesh <dt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2298136
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Previously, unit interrupt enabling/disabling and corresponding MC level
interrupt enabling/disabling was not done at the same time.
With this change, stall and nonstall interrupt for units are programmed
at MC level along with individual unit interrupts. Kept access to MC
interrupt registers through mc.intr_lock spinlock.
For doing this separated CE and GR interrupt mask functions.
mc.intr_enable is only used when there is global interrupt
control to be set. Removed mc_gp10b.c as mc_gp10b_intr_enable
is now removed. Removed following functions - mc_gv100_intr_enable,
mc_gv11b_intr_enable & intr_tu104_enable. Removed intr_pmu_unit_config
as we can use the generic unit interrupt control function.
JIRA NVGPU-4336
Change-Id: Ibd296d4a60fda6ba930f18f518ee56ab3f9dacad
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2196178
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tegra_get_chip_id is going to be deprecated soon and this patch removes
calls to it. Chip-ID is already read via DT and call to
tegra_get_chip_id() can be avoided by adding metadata to store the
Chip-ID information in struct gk20a_platform.
Bug 200524194
Bug 200551105
Change-Id: I5f9f5abf679cf9afe98840e20144d76eb0238426
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2236311
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
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IRQs can get triggered during nvgpu power-on due to MMU fault, invalid
PRIV ring or bus access etc. Handlers for those IRQs can't access the
full state related to the IRQ unless nvgpu is fully powered on.
In order to let the IRQ handlers know about the nvgpu power-on state
gk20a.power_on_state variable has to be protected through spinlock
to avoid the deadlock due to usage of earlier power_lock mutex.
Further the IRQs need to be disabled on local CPU while updating the
power state variable hence use spin_lock_irqsave and spin_unlock_-
irqrestore APIs for protecting the access.
JIRA NVGPU-1592
Change-Id: If5d1b5e2617ad90a68faa56ff47f62bb3f0b232b
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2203860
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cyclestats_snapshot data and lock is right now stored in struct nvgpu_gr
Use case itself is not specific to GR engine but in general it applies
to other units outside of GR too.
Hence it makes sense to move both data and lock to struct gk20a instead
of keeping them in struct nvgpu_gr
Update all cyclestats_snapshot code to refer data/lock from struct gk20a
Remove gr_priv.h header include from cyclestats_snapshot.c
Some of the functions were mistakenly declared in gr_gk20a.h.
Move them to cyclestats_snapshot.h and rename them to form nvgpu_css_*()
Jira NVGPU-1103
Change-Id: I3fb32fe96f0ca6613f4640c8bd227b9e0e02dca3
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2104848
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Removed unused struct from gr_gk20a.h
Change static allocation for struct gr_gk20a to dynamic type.
Change all the files that being affected by that change.
Call gr allocation from corresponding init_support functions, which
are part of the probe functions.
nvgpu_pci_init_support in pci.c
vgpu_init_support in vgpu_linux.c
gk20a_init_support in module.c
Call gr free before the gk20a free call in nvgpu_free_gk20a.
Rename struct gr_gk20a to struct nvgpu_gr
JIRA NVGPU-3132
Change-Id: Ief5e664521f141c7378c4044ed0df5f03ba06fca
Signed-off-by: Vinod G <vinodg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2095798
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
GVS: Gerrit_Virtual_Submit
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Unify qnx types unit with posix. Modify certain defines as part of
unification. Modify the fecs trace function mmap_user_buffer to
not have OS specific structure as parameter. Rename the function
pointer mmap_user_buffer as get_mmap_user_buffer_info to reflect the
functionality handled by the function.
Jira NVGPU-2146
Change-Id: I58ec9bf23a435c039d1b5f04194f56067b11aa28
Signed-off-by: ajesh <akv@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2082619
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Added new function to add require sw initionaltions. before enabling
gr hw. Added nvgpu_netlist_init_ctx_vars and nvgpu_gr_falcon_init_support
as part of this function:
int nvgpu_gr_prepare_sw(struct gk20a *g)
Moved following structure defs from gr_gk20a.h to gr_falcon.h and
renamed appropriately:
gk20a_ctxsw_ucode_segment -> nvgpu_ctxsw_ucode_segment
gk20a_ctxsw_ucode_segments -> nvgpu_ctxsw_ucode_segments
Moved following struct to gr_falcon_priv.h:
gk20a_ctxsw_ucode_info -> nvgpu_ctxsw_ucode_info
Moved following data from struct gk20a to new structure in gr_falcon_priv.h
struct nvgpu_gr_falcon:
struct nvgpu_mutex ctxsw_disable_lock;
int ctxsw_disable_count;
struct gk20a_ctxsw_ucode_info ctxsw_ucode_info;
Also moved following data from gr_gk20.h to struct nvgpu_gr_falcon:
struct nvgpu_mutex fecs_mutex;
bool skip_ucode_init;
wait_ucode_status
GR_IS_UCODE related enums
eUcodeHandshakeInit enums
Now add a pointer to this new data structure from struct gr_gk20a to
access gr_falcon related data and modified code to reflect this
change:
struct nvgpu_gr_falcon *falcon;
Added following functions to access gr_falcon data:
struct nvgpu_mutex *nvgpu_gr_falcon_get_fecs_mutex(
struct nvgpu_gr_falcon *falcon);
struct nvgpu_ctxsw_ucode_segments *nvgpu_gr_falcon_get_fecs_ucode_segments(
struct nvgpu_gr_falcon *falcon);
struct nvgpu_ctxsw_ucode_segments *nvgpu_gr_falcon_get_gpccs_ucode_segments(
struct nvgpu_gr_falcon *falcon);
void *nvgpu_gr_falcon_get_surface_desc_cpu_va(
struct nvgpu_gr_falcon *falcon);
JIRA NVGPU-1881
Change-Id: I9100891989b0d6b57c49f2bf00ad839a72bc7c7e
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2091358
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a) free_channel_ctx_header is used to free the channel's underlying subctx
and belongs to the hal.channel unit instead of fifo. Moved the same and
renamed the HAL ops to free_ctx_header. The function
gv11b_free_subctx_header is moved to channel_gv11b.* files and also
renamed to gv11b_channel_free_subctx_header.
b) ch_abort_clean_up is moved to hal.channel unit
c) channel_resume and channel_suspend are used to resume and suspend all
the serviceable channels. This belongs to hal.channel unit and are
moved from the hal.fifo unit.
The HAL ops channel_resume and channel_suspend are renamed to
resume_all_serviceable_ch and suspend_all_serviceable_ch respectively.
gk20a_channel_resume and gk20a_channel_suspend are also renamed to
nvgpu_channel_resume_all_serviceable_ch and
nvgpu_channel_suspend_all_serviceable_ch respectively.
d) set_error_notifier HAL ops belongs to hal.channel and is moved
accordingly.
Jira NVGPU-2978
Change-Id: Icb52245cacba3004e2fd32519029a1acff60c23c
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2083593
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- delete vgpu_is_reduced_bar1(). Current implementation maps only
that portion of BAR1 that is reserved for guest in case of
reduced BAR1. However this code is obsolete and reduced BAR1
check is always false. Delete related function vgpu_is_reduced_bar1()
and conditional mapping.
- move vgpu_mm_bar1_map_userd() delcaration from vgpu.h
to mm_vgpu.h
- move vgpu_gp10b_init_hal() and vgpu_gv11b_init_hal()
declarations from vgpu.h to new header files
vgpu/gp10b/vgpu_hal_gp10b.h and vgpu/gv11b/vgpu_hal_gv11b.h
respectively.
Jira GVSCI-334
Change-Id: I11a297a0aba1afd8b0ad022169ba7f734bcd952c
Signed-off-by: Aparna Das <aparnad@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2081152
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Create vgpu unit init. Move init related functions from
vgpu.c to init_vgpu.c under common/vgpu/init path and
create corresponding header file.
Create vgpu child unit init hal. Move functions
vgpu_init_hal() and vgpu_detect_chip() to a new
file init_hal_vgpu.c under common/vgpu/init path and
create corresponding header file.
Also move os specific hal init vgpu function declaration
vgpu_init_hal_osi() to a new file
include/nvgpu/vgpu/os_init_hal_vgpu.h separating it from
generic vgpu.h
Jira GVSCI-334
Change-Id: I07290e3be5061a2349689228265c8b28ebadab88
Signed-off-by: Aparna Das <aparnad@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2081153
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Moved cbc related code and data from gr to cbc unit.
Ltc and cbc related data is moved from gr header:
1. Ltc related data moved from gr_gk20a -> gk20a and it
will be moved eventually to ltc unit:
u32 slices_per_ltc;
u32 cacheline_size;
2. cbc data moved from gr_gk20a -> nvgpu_cbc
u32 compbit_backing_size;
u32 comptags_per_cacheline;
u32 gobs_per_comptagline_per_slice;
u32 max_comptag_lines;
struct gk20a_comptag_allocator comp_tags;
struct compbit_store_desc compbit_store;
3. Following config data moved gr_gk20a -> gk20a
u32 comptag_mem_deduct;
u32 max_comptag_mem;
These are part of initial config which should be available
during nvgpu_probe. So it can't be moved to nvgpu_cbc.
Modified code to use above updated data structures.
Removed cbc init sequence from gr and added in
common cbc unit. This sequence is getting called
from common nvgpu init code.
JIRA NVGPU-2896
JIRA NVGPU-2897
Change-Id: I1a1b1e73b75396d61de684f413ebc551a1202a57
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2033286
Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
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Move g->ops.fecs_trace.*() HAL operations under gr operations as
g->ops.gr.fecs_trace.*()
Also rename gk20a_ctxsw_*() functions used in common code to the
format nvgpu_gr_fecs_trace_*()
Jira NVGPU-1880
Change-Id: Idf2f8fb3d7ba2832bf1837fd97b70b3cee412123
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2070767
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We have 3 header files for FECS tracing support
include/nvgpu/gr/fecs_trace.h : common header
include/nvgpu/ctxsw_trace.h : header that includes both common and
os-specific functions
os/linux/ctxsw_trace.h : linux specific header
Remove the second header since it is not needed.
Move all structures that are needed in common code to
include/nvgpu/gr/fecs_trace.h
Move all function declarations that are needed in common code to
include/nvgpu/gr/fecs_trace.h
Move all linux specific declarations in os/linux/ctxsw_trace.h and
rename this file as os/linux/fecs_trace_linux.h
Also rename os/linux/ctxsw_trace.c to os/linux/fecs_trace_linux.c
Jira NVGPU-1880
Change-Id: I05cc4489c4b6a64880b7d59c02b22cd2244d5e22
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2070766
Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com>
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Add new power/clock gating functions that can be called by
other units.
New clock_gating functions will reside in cg.c under
common/power_features/cg unit.
New power gating functions will reside in pg.c under
common/power_features/pg unit.
Use nvgpu_pg_elpg_disable and nvgpu_pg_elpg_enable to disable/enable
elpg and also in gr_gk20a_elpg_protected macro to access gr registers.
Add cg_pg_lock to make elpg_enabled, elcg_enabled, blcg_enabled
and slcg_enabled thread safe.
JIRA NVGPU-2014
Change-Id: I00d124c2ee16242c9a3ef82e7620fbb7f1297aff
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2025493
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vgpu_mm_gp10b files contained gp10b specific code.
- vgpu_gp10b_locked_gmmu_map function is common to all
chips. Rename this function to vgpu_locked_gmmu_map
and move this function implementation to to mm_vgpu
file.
- diable_bigpage variable is set to false in
vgpu_gp10b_init_mm_setup_hw function. This is not related
to mm hw initialization. Move this assignment to
vgpu_init_variables along with other mm specific initialization
as done for native.
Change-Id: I4aba3096a3c945b8b3f4175382ebc78322e1d16e
Signed-off-by: Aparna Das <aparnad@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2028862
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Move regops (gk20a/regops_gk20a.c) to separate unit common/regops/regops.c
Move corresponding header (gk20a/regops_gk20a.h) to include/nvgpu/regops.h
Move rest of the platform HAL files to common/regops/ as well
Fix all the header includes to include new public header
Remove *_apply_smpc_war() declarations from headers. Corresponding
functions were cleaned up already, and declarations were left somehow
Jira NVGPU-620
Change-Id: I8b8065b9c91f69809bdeb1b4caecdc7582c8a992
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1998723
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Rename __nvgpu_set_enabled() to nvgpu_set_enabled(). The original
double underscore was present to indicate that this function is a
function with potentially unintended side effects (enabling a feature
has wide ranging impact).
To not lose this documentation a comment was added to convey that this
function must be used with care.
JIRA NVGPU-1029
Change-Id: I8bfc6fa4c17743f9f8056cb6a7a0f66229ca2583
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1989434
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
