In order to share the TSG across different devices securely, device
instance IDs are to be exchanged for endpoint identification. Add
device instance ID field to gk20a_ctrl_priv which is generated
from gk20a level device instance id value.
Share this ID to userspace via gpu characteristics.
Bug 3677982
JIRA NVGPU-8681
Change-Id: I79d92a81c02272c52e24f5b12c452c8993137037
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2792079
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Scott Long <scottl@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This patch introduces following relationships among various nvgpu
objects to support multiple address spaces with subcontexts.
IOCTLs setting the relationships are shown in the braces.
nvgpu_tsg 1<---->n nvgpu_tsg_subctx (TSG_BIND_CHANNEL_EX)
nvgpu_tsg 1<---->n nvgpu_gr_ctx_mappings (ALLOC_OBJ_CTX)
nvgpu_tsg_subctx 1<---->1 nvgpu_gr_subctx (ALLOC_OBJ_CTX)
nvgpu_tsg_subctx 1<---->n nvgpu_channel (TSG_BIND_CHANNEL_EX)
nvgpu_gr_ctx_mappings 1<---->n nvgpu_gr_subctx (ALLOC_OBJ_CTX)
nvgpu_gr_ctx_mappings 1<---->1 vm_gk20a (ALLOC_OBJ_CTX)
On unbinding the channel, objects are deleted according
to dependencies.
Without subcontexts, gr_ctx buffers mappings are maintained in the
struct nvgpu_gr_ctx. For subcontexts, they are maintained in the
struct nvgpu_gr_subctx.
Preemption buffer with index NVGPU_GR_CTX_PREEMPT_CTXSW and PM
buffer with index NVGPU_GR_CTX_PM_CTX are to be mapped in all
subcontexts when they are programmed from respective ioctls.
Global GR context buffers are to be programmed only for VEID0.
Based on the channel object class the state is patched in
the patch buffer in every ALLOC_OBJ_CTX call unlike
setting it for only first channel like before.
PM and preemptions buffers programming is protected under TSG
ctx_init_lock.
tsg->vm is now removed. VM reference for gr_ctx buffers mappings
is managed through gr_ctx or gr_subctx mappings object.
For vGPU, gr_subctx and mappings objects are created to reference
VMs for the gr_ctx lifetime.
The functions nvgpu_tsg_subctx_alloc_gr_subctx and nvgpu_tsg_-
subctx_setup_subctx_header sets up the subcontext struct header
for native driver.
The function nvgpu_tsg_subctx_alloc_gr_subctx is called from
vgpu to manage the gr ctx mapping references.
free_subctx is now done when unbinding channel considering
references to the subcontext by other channels. It will unmap
the buffers in native driver case. It will just release the
VM reference in vgpu case.
Note that TEGRA_VGPU_CMD_FREE_CTX_HEADER ioctl is not called
by vgpu any longer as it would be taken care by native driver.
Bug 3677982
Change-Id: Ia439b251ff452a49f8514498832e24d04db86d2f
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2718760
Reviewed-by: Scott Long <scottl@nvidia.com>
Reviewed-by: Ankur Kishore <ankkishore@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
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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Patch defines a ZBC static table and configure it at sw layer. Later
existing API read this sw configuration and program it to hw.
This is applicable only for ga10b safety build and for other chips/
configuration it will be supported in the legacy way.
Bug 3585766
Change-Id: I00d79162c0b096616e3f555da965e82e47c014d1
Signed-off-by: prsethi <prsethi@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2713821
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In order to support the concept of the default domain, a new
rl domain is created that shadows all the other domains i.e.
all channels of all TSGs are replicated here. This is scheduled
by default during GPU boot.
1) The shadow rl_domain is constructed during poweron sequence via
nvgpu_runlist_alloc_shadow_rl_domain(). struct nvgpu_runlist
is appended to store this separately as 'shadow_rl_domain'.
This is scheduled in background as long as no other user created
rl domains exist.
2) 'shadow_rl_domain' is scheduled out once user created rl domain
exist. At this point, any updates in the user created rl domains
are synchronized with the 'shadow_rl_domain'. i.e. 'shadow_rl_domain'
is also reconstructed to contain active channels and tsgs from the rl
domain.
3) 'shadow_rl_domain' is scheduled back in when the last user created
rl domain is removed.
4) In future for manual mode, driver shall support explicitely
switching to 'shadow_rl_domain'. Also, we will move to an
implementation where 'shadow_rl_domain' is switched out only when
other domains are actively scheduled. These changes will be
implemented later.
Jira NVGPU-8165
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Change-Id: Ia6a07d6bfe90e7f6c9e04a867f58c01b9243c3b0
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2704702
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
GVS: Gerrit_Virtual_Submit
CBC contig allocation requires mempool node in DT and the
node can be used for contig allocations. The code duplication
can be avoided by unifying the code from vgpu.
Change-Id: I6eaa1d0c9db47b158602bf0ba68ce4e09cf487a7
Signed-off-by: Dinesh T <dt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2650459
Reviewed-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-by: Ankur Kishore <ankkishore@nvidia.com>
GVS: Gerrit_Virtual_Submit
This patch performs the following improvements for VAB:
1) It avoids an infinite loop when collecting VAB information.
Previously, nvgpu incorrectly assumed that the valid bit would
be eventually set for the checker when polling. It may not be set
if a VAB-related fault has occurred.
2) It handles the VAB_ERROR mmu fault which may be caused for various
reasons: invalid vab buffer address, tracking in protected mode,
etc. The recovery sequence is to set the vab buffer size to 0 and
then to the original size. This clears the VAB_ERROR bit. After
reseting, the old register values are again set in the recovery
code sequence.
3) Use correct number of VAB buffers. There's only one VAB buffer on
ga10b, not two.
4) Simplify logic.
Bug 3374805
Bug 3465734
Bug 3473147
Change-Id: I716f460ef37cb848ddc56a64c6f83024c4bb9811
Signed-off-by: Martin Radev <mradev@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2621290
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Now that the main nvsched code exists in the nvgpu build, make it
control the runlist domains. As a new nvs domain is created, create the
relevant runlist data too. To support the default domain, create a
default nvs domain at boot.
The scheduling domain code owns the responsibility of domain lifetime,
and runlist domains exist to serve that logic although the RL domains
are directly used by channel and TSG logic. Add refcounting to the
scheduler uapi level to make sure that busy domains (that still have TSG
participants) do not get removed too early.
Adjust error injection sensitive unit tests to match the updated logic.
Jira NVGPU-6425
Jira NVGPU-6427
Change-Id: I1beec97c54c60ad334165b1c0acb5e827c24f2ac
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2632287
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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
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
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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
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
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GVS: Gerrit_Virtual_Submit
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The implementation already exists. This change
adds NVGPU_GR_ZBC_TYPE_STENCIL and plumbs through
the stencil value from NvRmGpuDeviceZbcAddStencil
through NVGPU_GPU_IOCTL_ZBC_SET_TABLE.
Adds cases for querying the stencil values,
enabling NvRmGpuDeviceZbcGetStencilTableEntry.
Bug 3403523
Bug 3395601
Change-Id: I42c9a2967d0433e0bb08343aabeff0fe465f231e
Signed-off-by: Pyarelal Knowles <pknowles@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2554963
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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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Reviewed-by: Shashank Singh <shashsingh@nvidia.com>
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GVS: Gerrit_Virtual_Submit
To enable userspace query about comptags allocation status of a buffer,
comptags are to be allocated only during buffer registration done by
nvrm_gpu. Earlier, they were allocated during map.
nvrm_gpu will be sending metadata blob to be associated with the buffer.
This will have to be stored in the dmabuf privdata for all the buffers
registered by nvrm_gpu.
This patch moves the privdata allocation to buffer registration ioctl.
Remove g->mm.priv_lock as it is not needed now. This lock was added
to protect dmabuf private data setup. That private data is now
handled through dmabuf->ops and setup of dmabuf->ops is done
under dmabuf->lock.
To support legacy userspace, this patch still allocates comptags on
demand on map calls for unregistered buffers.
Bug 200586313
Change-Id: I88b2ca04c733dd02a84bcbf05060bddc00147790
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2480761
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Existing implementation of GR de-init doesn't account for multiple
instances of struct nvgpu_gr. As a fix, below changes are added.
1) nvgpu_gr_free is unified for VGPU as well as native.
2) All the GR instances are freed.
3) Appropriate NULL checks are added when freeing GR memories.
4) 2D, 3D, I2M and ZBC etc are explicitely disabled when MIG is set.
5) In ioctl_ctrl, checks are added to not return error when zbc is NULL
for VGPU as requests are rerouted to RMserver.
Jira NVGPU-6920
Change-Id: Icaa40f88f523c2cdbfe3a4fd6a55681ea7a83d12
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2578500
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: Dinesh T <dt@nvidia.com>
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
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GVS: Gerrit_Virtual_Submit
At present, there is an inconsistency in the order in which
gpc_tpc masks are reported to the userspace. Both gpc and
tpc masks are reported using physical-ids. However, the
gpc_tpc_masks array is ordered by logical gpc-ids and
not physical-ids. This creates a mismatch between the gpc
reported as enabled in the gpc_mask and its corresponding
gpc_tpc_mask.
Introduce field "gpc_tpc_mask_physical" which stores the
gpc_tpc_masks in physical order and update
NVGPU_GPU_IOCTL_GET_TPC_MASKS to return this field.
Bug 200665942
Change-Id: I63aa83414a59676b7e7d36b6deb527e2f3c04cff
Signed-off-by: Antony Clince Alex <aalex@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2531114
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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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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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1) Expose logical mask instead of physical mask when MIG is enabled.
For legacy, NvGpu expose physical mask.
2) Added fb related info in struct nvgpu_gpu_instance().
4) Added utility api to get the logical id for a given local id
nvgpu_grmgr_get_gr_gpc_logical_id()
5) Added grmgr api to get max_gpc_count
nvgpu_grmgr_get_max_gpc_count().
5) Added grmgr's fbp api to get num_fbps and its enable masks.
nvgpu_grmgr_get_num_fbps()
nvgpu_grmgr_get_fbp_en_mask()
nvgpu_grmgr_get_fbp_rop_l2_en_mask()
6) Used grmgr's fbp apis in ioctl_ctrl.c
7) Moved fbp_init_support() in nvgpu_early_init()
8) Added nvgpu_assert handling in grmgr.c
9) Added vgpu hal for get_max_gpc_count().
JIRA NVGPU-5656
Change-Id: I90ac2ad99be608001e7d5d754f6242ad26c70cdb
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2538508
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Reviewed-by: Dinesh T <dt@nvidia.com>
Reviewed-by: Rajesh Devaraj <rdevaraj@nvidia.com>
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HAL .exec_regops used to first validate regops then execute it, now
moving it to only execute the regops.
- It helps B0CC on HV. On server side it does not track profiler object,
but regops validation uses the profiler, so moving validation to client
side.
- The change also remove ctx_buffer_offset checking in
validate_reg_op_offset. The offset already checked again whitelists
which have be verified when update whitelist. Also vgpu does not have
information of ctx and golden image.
- Added function nvgpu_regops_exec to cover both regops validation and
execution.
Jira GVSCI-10351
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Change-Id: I434e027290e263a8a64a25a55500f7294038c9c4
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2534252
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Update the nvgpu_runlist_update_for_channel() function:
- Rename it to nvgpu_runlist_update()
- Have it take a pointer to the runlist to update instead
of a runlist ID. For the most part this makes the code
better but there's a few places where it's worse (for
now).
This starts the slow and painful process of moving away from
the non-runlist code using runlist IDs in many places it should
not.
Most of this patch is just fixing compilation problems with
the minor header updates.
JIRA NVGPU-6425
Change-Id: Id9885fe655d1d750625a1c8aceda9e67a2cbdb7a
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2470304
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