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path: root/drivers/gpu/nvgpu/gv100/nvlink_gv100.h
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* gpu: nvgpu: shutdown nvlink in driver removeNitin Kumbhar2018-07-26
| | | | | | | | | | | | | 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 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: nvlink: Add HAL for SW WARTejal Kudav2018-06-14
| | | | | | | | | | | | | | 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 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: nvlink: Add HAL to get link_maskTejal Kudav2018-06-14
| | | | | | | | | | | | | | | | 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 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: nvlink: Add HAL for minion INIT* dlcmdTejal Kudav2018-06-14
| | | | | | | | | | | | | | | | | | 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 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: nvlink: Add HAL for pll setupTejal Kudav2018-06-14
| | | | | | | | | | | | | | | | | | 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 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: nvlink: Add HAL for RXDETTejal Kudav2018-06-14
| | | | | | | | | | | | | | | | | | | 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 GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: gv100: nvlink endpoint driverThomas Fleury2018-02-26
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 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>