| Commit message (Collapse) | Author | Age |
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Currently, we need to include the MC hardware header in nvlink file
to generate reset mask.
We can use the reset_enum present in DEVICE_INFO table's IOCTRL entry
which is meant to index into NV_PMC_ENABLE_DEVICE register bitfields.
This allows us to not #include the MC hardware header in nvlink IP
file.
JIRA NVGPU-966
Change-Id: I037498038b12f795ee444916fb586355ebf04bb3
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1796819
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
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We parse the DEVICE_INFO table entries to get IOCTRL(NVLINK)
engine related information like the pri_base_addr, reset_enum,
and the intr_enum.
For grouping the chained entries per IP, the current parsing logic
relies on the fact that engine_type entry for an IP will be parsed
before other entries in the chained group.
As the enum_type entry (which contains the reset_enum) appears
ahead of the engine_type entry, the parsing logic fails and we read
reset_enum as 0.
Modify the parsing logic to group the chained entries correctly.
Also we were using a wrong API to extract the reset/intr_enum from the
table entry.
JIRA NVGPU-966
Change-Id: I68052db5d1c88a15e04f311486f3f639caf9ed9e
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1796808
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top_nvhsclk_ctrl_e_clk_core and top_nvhsclk_ctrl_swap_clk_core
default to values 1 and 0 respectively on reset.
We need not explicitly program them to same values.
JIRA NVGPU-966
Change-Id: I71976c73d74cf81184c79ac9a23e01d26c31be42
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1803639
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Many files used declarations from timers.h implicitly via another header
file(s). Add several #includes explicitly to their users.
Jira NVGPU-967
Change-Id: I88b515061db87c69bd85e3655b74d0271a80d9bf
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1804611
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For nvlink, we need to use minion registers instead of
generic falcon registers.
JIRA NVGPU-966
Change-Id: I850d2e2a4475394c37d2253c5034713c78439bd0
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1795086
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nvlink alt_clk switch defaults to slowclk; the init
value of register field is slowclk.
So we need not program the register field 'clk_alt_switchfinalsel'.
Also the code lines were not taking effect as the value is not
written back to the register.
JIRA NVGPU-966
Change-Id: I75904e94a8e113c17fb3bf8c414174c549ad893e
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1795050
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We do not use the stored hshub_config* register values.
Remove these redundant fields from nvlink data structure too.
This also allows us to not #include a FB hardware header in
nvlink.
JIRA NVGPU-966
Change-Id: I3be169a958ec17370b55889d1e1fbabb887a79fd
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1794955
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Removed the utils.h include from gk20a.h
utils.h is included in those files which
make use of the macros in utils.h
JIRA NVGPU-1005
Change-Id: Ifb41da58db6ff8682fa6b5dfdd8eda11a751fcac
Signed-off-by: Vinod G <vinodg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1785952
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Reviewed-by: Alex Waterman <alexw@nvidia.com>
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In the current code, gk20a.h includes io.h which gets directly included
in a lot of other files. io.h contains methods which uses a struct
gk20a as a parameter leading to a circular dependency between io.h
and gk20a.h. This can be mitigated by removing io.h from gk20a.h as
part of larger effort to moving gk20a.h to nvgpu/gk20a.h
JIRA NVGPU-597
Change-Id: I93e504fa9371b88152737b342a75580c65e8f712
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1787316
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During driver remove, if nvlink is set up, gracefully
shut it down so that it can be enumerated again.
Bug 1987855
Change-Id: Ibd83a5e29364b22264e689aa879569a9cccf0f79
Signed-off-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1746073
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Workaround of setting SAFE_CTR_INIT on NVLINK (WAR for Bug 1888034)
is needed only on nvlink 2.0. Add HAL to avoid running the WAR on
future chips.
Bug 2006692
Change-Id: I85fb90ea5ce7b848946f2c362e7a952787cc1261
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1738401
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VBIOS link_disable_mask should be sufficient to find the connected
links. As VBIOS is not updated with correct mask, we parse the DT
node where we hardcode the link_id. DT method is not scalable as same
DT node is used for different dGPUs connected over PCIE. Remove the
DT parsing of link id and use HAL to get link_mask based on the GPU.
JIRA NVLINK-162
Change-Id: Idb7b639962928ce48711a0d7fc277c4c324bee91
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1738967
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The sequence of INIT* minion dlcmd varies between nvlink 2.0 and 2.2.
The order is strict for 2.2. Also there are new dlcmds added to the
nvlink bringup sequence. Add HAL to allow sequence update for nvlink 2.2.
Old sequence:
INITLANEENABLE-> INITDLPL
New Sequence:
INITDLPL->INITDLPL_TO_CHIPA->INITTL->INITLANEENABLE
JIRA NVLINK-176
Change-Id: I49e0a726f56e7d6122ac4cddf0f0e021d16f1926
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1738329
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On nvlink 2.2, we poll for sublink substate to be stable before checking
sublink primary state. Currently, we read both TX and RX sublink state
during set_sublink_mode() irrespective of which sublink mode is changed.
This is not correct when we are polling on substate value while getting
sublink state.
JIRA NVLINK-164
Change-Id: I474705f059dbf41e5fb7e45bef455c33ee21aa95
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1734539
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Before nvlink 2.2, driver was responsible for setting the NVLink clocks
during NVLink initialization. For the purpose of security, NVLink PLL
handling is moved to Minion in nvlink 2.2 and driver should stop writing
to these registers.
JIRA NVLINK-167
Change-Id: I18392a29c322da55053037bfde62c8f74ee75288
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1730597
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RXDET is supported only on nvlink 2.2 devices and forward.
Add HAL to run RXDET selectively based on chip. RXDET needs to be
done after the links are out of reset but before any other link
level initialization.
minion_send_cmd is also made non-static to support RXDET
functionality.
JIRA NVLINK-160
Change-Id: Ic65b8dbc7281743f62072089ff3c805521ac9b38
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1729525
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On GV100, we could not enable reflck repeater at source of PLL
which is shared by link 0/1. So we do not allow link 0 and 1 to
be used on GV100. This refclk repeater is present only on GV100.
Remove the check as we currently use link3 on GV100 and do not
plan to use any other link.
JIRA NVLINK-162
Change-Id: I9ffcc0b20d084a208271d2c594ec64b5bafaabfb
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1734538
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TLC buffer sizes and credit init values do not match with
the values recommended by IAS for dGPU-Xavier configuration.
These buffer configuration values affect the latency over link.
JIRA NVLINK-158
Change-Id: I7822747cb0ae5a5efdd2d57e2104d0cb30bf9352
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1686601
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Migrate to the new NVLINK MINION ucode format. The new format strips out
an unnecessary ACR header from the ucode image. Moving to the new format
will allow MINION ucode generation scripts to be unified.
Bug 2113404
Change-Id: I9a72d6c3fa5edd50a4ec5eb835d157672931f994
Signed-off-by: Adeel Raza <araza@nvidia.com>
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Move nvlink endpoint operations to common code. These operations
are invoked when handling nvlink core driver requests.
Jira VQRM-3523
Change-Id: I93024bf88a8caa3765b33c1264dde452c1a85ee3
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1698686
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Get host1x node reference from c1_rp device tree node, and
enable syncpoints shim in case of nvlink.
JIRA EVLR-2441
JIRA EVLR-2585
Change-Id: Idbf1edf656557f2ed2d3bd27393c2f4d5d1ad75a
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1663360
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Previously all nvlink recovery modes were being grouped under 1 enum.
Create an enum for each recovery mode, so the link can go into specific
recovery modes.
Bug 2090322
Change-Id: I5c2aea758f77b0286e3538424684ddceca98a873
Signed-off-by: Adeel Raza <araza@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1698799
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Reviewed-by: Tejal Kudav <tkudav@nvidia.com>
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- QNX is pulling dgpu code from linux which has
multiple build failure on QNX. Like QNX needs
explicit declaration for all non-static functions.
Some linux specific headers need to be put under
__KERNEL__ flag.
Change-Id: I15af1a1f6a069c82f9a81449f4f7c7d48612de42
Signed-off-by: Shashank Singh <shashsingh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1665752
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Add support for 20G speed by updating initPLL command and
update the default link speed set during nvlink init to 20G.
Bug 200398181
Change-Id: I22cde32842d140b34481aaec2b1561ffbd44e2d8
Signed-off-by: Tejal Kudav <tkudav@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1678444
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Add the following hals:
(1) init_nvlink to configure nvlink(s) for sysmem in HSHUB
(2) enable_nvlink to switch from PCIe sysmem to nvlink sysmem,
and setup atomics.
Change-Id: I73d2370aaf8e0530158a1091d9efef4a8cf2aac5
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1648044
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The following changes implements the initial (as per bringup) nvlink driver.
(1) SW initialization of nvlink core driver structures
(2) Nvlink interrupt handling
(3) Device initialization (IOCTRL, pll and clocks, device level intr)
(4) Falcon support for minion
(5) Minion load and bootstrapping
(6) Link initialization and DL PROD settings
(7) Device Interface init (and switching HSHUB to nvlink)
(8) HS set/get mode for both link and sublink
(9) Topology discovery and VBIOS settings.
(10) Ensures we get physical contiguous memory when Nvlink is enabled
This driver includes a hack for the current single dev/single link limitation.
JIRA: EVLR-2331
JIRA: EVLR-2330
JIRA: EVLR-2329
JIRA: EVLR-2328
Change-Id: Idca9a819179376cc655784482b24b575a52fa9e5
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1656790
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