Add new API nvgpu_get_gk20a_from_cdev() that extracts gk20a pointer
from cdev pointer. This helps in keeping cdev related implementation
details in ioctl.c and away from other device ioctl files.
Also move struct nvgpu_cdev, nvgpu_class, and nvgpu_cdev_class_priv_data
from os_linux.h to ioctl.h since all of these structures are more IOCTL
related and better to keep them in ioctl specific header.
Jira NVGPU-5648
Change-Id: Ifad8454fd727ae2389ccf3d1ba492551ef1613ac
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2435466
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Lakshmanan M <lm@nvidia.com>
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GVS: Gerrit_Virtual_Submit
In MIG mode, each of the dev nodes should be enumerated for each fGPU.
And for physical instance only the "ctrl" node should be enumerated.
Support this with below set of changes :
- Add struct nvgpu_mig_static_info that describes static GPU instance
configuration. GPCs are enumerated only during poweron and grmgr unit
will populate instance information based on number of GPCs.
For linux, GPU poweron happens only with first gk20a_busy() call and
instance information is not available during probe() time. Hence this
static table is a temporary solution until proper solution is
identified.
- Add nvgpu_default_mig_static_info for iGPU and
nvgpu_default_pci_mig_static_info for dGPU that describes GPU instance
partition.
- Add new function nvgpu_prepare_mig_dev_node_class_list() that parses
the static table and creates one class per instance in MIG mode.
Non-MIG mode classes are now enumerated in
nvgpu_prepare_default_dev_node_class_list().
- Add new structure nvgpu_cdev_class_priv_data to store private data for
each cdev. This will hold instance specific information and pointer to
private data will be maintained in struct class and also passed as
private data while creating device node with device_create()
- Add nvgpu_mig_phys_devnode() to set dev node path/names for fGPUs and
add nvgpu_mig_fgpu_devnode() to set dev node path/names for physical
instance in MIG mode.
- Add new field mig_physical_node to struct nvgpu_dev_node. This field
is set if corresponding dev node should be created for physical
instance in MIG mode. For now set it only for "ctrl" node.
Jira NVGPU-5648
Change-Id: Ic97874eece1fbe0083b3ac4c48e36e06004f1bc2
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2434586
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Lakshmanan M <lm@nvidia.com>
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Remove devnode_class pointer from struct nvgpu_os_linux and replace it
by a list head.
Add new structure nvgpu_class to store class related meta-data and
create it dynamically in nvgpu_create_class().
Add new function nvgpu_prepare_dev_node_class_list() to prepare list of
all classes that are required for each GPU.
For now there is only one class per GPU, but in MIG mode multiple
classes will be created with one class per instance.
Update gk20a_user_init() to loop through list of classes and create
dev nodes for each class.
gk20a_user_deinit() frees up the linked list.
Jira NVGPU-5648
Change-Id: I891a55c0ce1c2ff9db094564529b3f569df9735c
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2428501
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
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GVS: Gerrit_Virtual_Submit
Remove static dev node meta data from struct nvgpu_os_linux and replace
it by a dynamic list. Struct nvgpu_os_linux will only keep track of list
head and number of entries.
Add new structure nvgpu_cdev to store meta data of each dev node and
create/setup it dynamically in gk20a_user_init(). Once done, add the new
node under list head maintained in nvgpu_os_linux.
Add a static list dev_node_list[] that contains list of dev node names
and file operations. This static list is used to create nvgpu_cdev data
structures and to register new device nodes.
Update all dev node open file operations (e.g. gk20a_as_dev_open()) to
extract struct gk20a pointer from device pointer of dev node.
gk20a device is the parent of dev node device.
Jira NVGPU-5648
Change-Id: If070c3428afd6215e45b4919335d9f43e04c36f9
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2428500
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
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GVS: Gerrit_Virtual_Submit
Remove static class definition and registration for iGPU and dGPU.
Create the class dynamically in gk20a_user_init() and setup the callback
function to create devnode name based on GPU type.
For now add nvgpu_pci_devnode() callback for dGPU that sets correct
dev node path for dGPUs. For iGPU, Android apparently does not honor dev
node path set in callback and hence override the device name for iGPU
with function nvgpu_devnode().
Destroy the class in gk20a_user_deinit().
This will overall be helpful in adding multiple classes and dev nodes
for each GPU instance in MIG mode.
Set GPU device pointer as the parent of new devices created with
device_create(). This is helpful in getting GPU device name in
callback function nvgpu_pci_devnode().
Update functions to not pass class structure and interface names :
nvgpu_probe()
gk20a_user_init()
gk20a_user_deinit()
nvgpu_remove()
Remove static interface name format like INTERFACE_NAME since it is no
longer needed.
Update GK20A_NUM_CDEVS to 10 since there are 10 dev nodes per GPU right
now.
Jira NVGPU-5648
Change-Id: I5d41db5a0f87fa4a558297fb4135a9fbfcd51080
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2423492
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* Removed unnecessary irqs_enabled flag, and
Replaced enable/disable irq logics with nvgpu variant functions.
* Added nvgpu_interrupts data structure to hold interrupt details.
* Interpret all stall irqs first and followed by nonstall irq from dt.
* Used interrupt size checks for enable/disable irqs instead of
comparing stall and nonstall interrupt lines.
Now adding new stall interrupt lines as easy as just updating macro.
Jira NVGPU-6019
Change-Id: I5a5eaa8d333c68ee87d25d2b45ec244ec8d7b297
Signed-off-by: Sagar Kadamati <skadamati@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2400777
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Create new dev nodes for device and context profilers. Example of dev
nodes on iGPU
/dev/nvhost-prof-dev-gpu - device scope profiler
/dev/nvhost-prof-ctx-gpu - context scope profiler
Add below APIs to open/close above dev nodes :
nvgpu_prof_dev_fops_open()
nvgpu_prof_ctx_fops_open()
nvgpu_prof_fops_release()
Add common API nvgpu_prof_fops_ioctl() to handle IOCTL call on these
dev nodes. Add IOCTL NVGPU_PROFILER_IOCTL_BIND_CONTEXT to bind the TSG
to profiler objects.
Add nvgpu_tsg_get_from_file() to retrieve TSG struct pointer from
file descriptor. Also store profiler object pointer into TSG struct.
Enable NVGPU_SUPPORT_PROFILER_V2_DEVICE capability on gv11b and tu104.
Note that this is not yet enabled for vGPU.
Keep NVGPU_SUPPORT_PROFILER_V2_CONTEXT capabiity disabled since this
will take longer to support.
Add new IOCTL NVGPU_PROFILER_IOCTL_UNBIND_CONTEXT so that userspace can
explicitly unbind the context and release the resources before closing
the profiler descriptor.
Add context_init flag to profiler object for book keeping.
Bug 2510974
Jira NVGPU-5360
Change-Id: Ie07e0cfd5a9da9d80008f79c955c7ef93b4bc60f
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2384354
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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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GVS: Gerrit_Virtual_Submit
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Disable the somewhat non-useful syncpoint debug spew in the nvgpu
debug spew. The GPU has it's own snapshot view of syncpoints so
visibility into other syncpoint data is often not very helpful.
However, there are plausibly times where this would be necessary.
For example debugging a sync issue between the GPU and some other
SoC engine. Therefore, the syncpoint debug spew can be enabled
again at runtime if necessary.
JIRA NVGPU-5541
Change-Id: I7028e2d6027e41835b2fed4f2bbb366c16b99967
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2349185
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nvgpu_has_syncpoints is more general than a channel synchronization
related, so move it to nvhost.c from channel_sync.c. Move the
declaration from gk20a.h to nvhost.h.
As the debugfs knob is Linux related, move it from struct gk20a to
struct nvgpu_os_linux.
Jira NVGPU-4548
Change-Id: I4236086744993c3daac042f164de30939c01ee77
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2318814
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PG189 has multiple sensors which can provide interrupt when board
temperature reaches programmed threshold.
This Interrupt is implemented in nvgpu and provide events via clk_arb.
Support is enabled for TU104 with NVGPU_SUPPORT_DGPU_THERMAL_ALERT flag.
Board specific config is added in DT which will be parsed by nvgpu.
Nvgpu does the following.
1.Read gpio line number, interrupt type, and event delay from DT.
2.Call kernel methods and register the interrupt with kernel.
3.Create work queue which will process the interrupt in process context.
4.When interrupt occurs disable interrupt, add work to work queue.
5.In work queue post events and sleep for delay time then enable
Interrupt
Bug 2492512
Change-Id: Ic5694fe366ca492f8afe8a67de4350e9a51af2af
Signed-off-by: Abdul Salam <absalam@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2119411
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Moved the following HALs from fifo to tsg
- set_timeslice
- default_timeslice_us
Renamed
- gk20a_tsg_set_timeslice -> nvgpu_tsg_set_timeslice
- min_timeslice_us -> tsg_timeslice_min_us
- max_timeslice_us -> tsg_timeslice_max_us
Scale timeslice to take into account PTIMER clock in
nvgpu_runlist_append_tsg.
Removed gk20a_channel_get_timescale_from_timeslice, and
instead moved timeout and scale computation into runlist HAL,
when building TSG entry:
- runlist.get_tsg_entry
Use ram_rl_entry_* accessors instead of hard coded values
for default and max timeslices.
Added #defines for min, max and default timeslices.
Jira NVGPU-3156
Change-Id: I447266c087c47c89cb6a4a7e4f30acf834b758f0
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2100052
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Debug boolean flags force_preemption_gfxp and force_preemption_cilp are
right now stored in gr_gk20a.ctx_vars struct
These flags logically are property of gr.ctx units since they indicate
whether each context should be forced to gfxp/cilp preemption mode by
default
Move these flags to struct nvgpu_gr_ctx_desc and remove them from
gr_gk20a.ctx_vars
Expose below APIs from gr.ctx unit to check if flags are set
nvgpu_gr_ctx_desc_force_preemption_gfxp()
nvgpu_gr_ctx_desc_force_preemption_cilp()
Move debugfs creation code to create corresponding debugfs to
gr_gk20a_debugfs_init() and change debugfs type from "u32" to "file"
Struct gr.gr_ctx_desc is created only during first poweron.
Return error if this struct is not available.
Remove unnecessary initialization of these variables from platform
specific probe functions
Jira NVGPU-3112
Change-Id: I8b2de27f0c71dd2ea5abcf94221c2e15c80073ea
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2099398
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
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Remove below variables from struct gr_gk20a
u32 bundle_cb_default_size;
u32 min_gpm_fifo_depth;
u32 bundle_cb_token_limit;
u32 attrib_cb_default_size;
u32 alpha_cb_default_size;
u32 attrib_cb_gfxp_default_size;
u32 attrib_cb_gfxp_size;
u32 attrib_cb_size;
u32 alpha_cb_size;
Instead add below hals in hal.gr.init unit to get all of above sizes
u32 (*get_bundle_cb_default_size)(struct gk20a *g);
u32 (*get_min_gpm_fifo_depth)(struct gk20a *g);
u32 (*get_bundle_cb_token_limit)(struct gk20a *g);
u32 (*get_attrib_cb_default_size)(struct gk20a *g);
u32 (*get_alpha_cb_default_size)(struct gk20a *g);
u32 (*get_attrib_cb_gfxp_default_size)(struct gk20a *g);
u32 (*get_attrib_cb_gfxp_size)(struct gk20a *g);
u32 (*get_attrib_cb_size)(struct gk20a *g, u32 tpc_count);
u32 (*get_alpha_cb_size)(struct gk20a *g, u32 tpc_count);
u32 (*get_global_attr_cb_size)(struct gk20a *g, u32 max_tpc);
Define these hals for all gm20b/gp10b/gv11b/gv100/tu104 chips
Also add hal.gr.init support for gv100 chip
Remove all accesses to variables from struct gr_gk20a and start using
newly defined hals
Remove below hals to initialize sizes since they are no more required
g->ops.gr.bundle_cb_defaults(g);
g->ops.gr.cb_size_default(g);
g->ops.gr.calc_global_ctx_buffer_size(g);
Also remove definitions of above hals from all the chip files
Jira NVGPU-2961
Change-Id: I130b578ababf22328d68fe19df581e46aebeccc9
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2077214
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Instead of just the base address of the main register range, store
(also) the base address of usermode area. All regs may not be always
available; on vgpu guests we have only the usermode regs.
Store the usermode addr we get from a platform resource directly in
gv11b_vgpu_probe() for vgpu. In that case the main reg addr is unset.
The base address is computed in gk20a_pm_finalize_poweron() for native
environments; when the reg addr is read from a resource, the chip is
still unknown and as such the HAL op for reading the usermode base
offset is unavailable.
Bug 200145225
Bug 200467197
Change-Id: I8855bb54a6456eb63b69559c84398f7eeaec3513
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1951524
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Usermode submit needs to access the usermode region of registers from
userspace. Store the start address of register resource in struct
nvgpu_os_linux to be used in remap to userspace.
Bug 200145225
Change-Id: I3796b6bf67942af0cc16c86accb82a013032bfc8
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1811838
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1) Update header path of gk20a.h files present in os/
to <nvgpu/gk20a.h>
2) os_fence_android_sema.c indirectly was dependent on gk20a.h via
semaphore.h. So, added #include <nvgpu/gk20a.h> in
os_fence_android_sema.c and replaced the header with forward
declaration of struct gk20a in semaphore.h
Jira NVGPU-597
Change-Id: I96e23befeb80713f3a399071eb5498f6f580211d
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1842868
Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Alex Waterman <alexw@nvidia.com>
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Move debugfs related code of therm from common driver to linux
specific part of the driver. gp106_therm_debugfs_init()
is updated to use nvgpu_os_linux_ops.
This also affects gv100 as gp106_therm_debugfs_init is used
for gv100 as well.
JIRA NVGPU-603
Change-Id: Ia293d14599bc0c91fd1e917b5a430bd8f3d96e56
Signed-off-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1797906
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
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Move linux dependencies and CONFIG_DEBUG_FS to linux specific
code from common driver for gp106 clk debugfs. There is no
code change in functions moved from gp106/clk_gp106.c.
It uses nvgpu_os_linux_ops to add gp106 specific clk debugfs
ops. The linux specific part of nvgpu driver uses this op
to initialize gp106 clk debugfs.
As gv100 also uses gp106 clk debugfs ops, set up os ops for
gv100.
JIRA NVGPU-603
Change-Id: Ib55ef051b13366e5907e1d05376bb18bf42c8653
Signed-off-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1797904
Reviewed-by: svc-misra-checker <svc-misra-checker@nvidia.com>
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
GVS: Gerrit_Virtual_Submit
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Added debugfs node under ltc directory with name:
intr_illegal_compstat_enable
Enabling/disabling of ltc_illegal_compstat intr is
possible through debugfs node.
Since ltc state is lost with rail gate, this setting is
cached and will be populated during ltc initialization.
Bug 2099406
Change-Id: I4bf62228dfd2bbb94f87f923f9f4f6e5ad0b07f0
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1774683
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- create common file common/ecc.c which include common functions for add
ecc counters and remove counters.
- common code will create a list of all counter which make it easier to
iterate all counters.
- Add chip specific file for adding ecc counters.
- add linux specific file os/linux/ecc_sysfs.c to export counters to
sysfs.
- remove obsolete code
- MISRA violation for using snprintf is not solved, tracking with
jira NVGPU-859
Jira NVGPUT-115
Change-Id: I1905c43c5c9b2b131199807533dee8e63ddc12f4
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1763536
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