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path: root/drivers/gpu/nvgpu/common/linux/nvlink.c
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* 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>
* gpu: nvgpu: Remove init_state initialization codeTejal Kudav2018-02-02
| | | | | | | | | | | | | | | | | | nvlink core library no longer exposes the set_init_state() interface as it wishes to block init_state changes from endpoint drivers. Now, the core driver is responsible for initializing init_state variables using set_init_state() interface. Hence, we remove this redundant code. Change-Id: I81c4922cf48f7918e69795579b39b7fa0c299644 Signed-off-by: Tejal Kudav <tkudav@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1646437 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Adeel Raza <araza@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvgpu: Initial Nvlink driver skeletonDavid Nieto2018-01-25
Adds the skeleton and integration of the GV100 endpoint driver to NVGPU (1) Adds a OS abstraction layer for the internal nvlink structure. (2) Adds linux specific integration with Nvlink core driver. (3) Adds function pointers for nvlink api, initialization and isr process. (4) Adds initial support for minion. (5) Adds new GPU enable properties to handle NVLINK presence (6) Adds new GPU enable properties for SG_PHY bypass (required for NVLINK over PCI) (7) Adds parsing of nvlink vbios structures. (8) Adds logging defines for NVGPU JIRA: EVLR-2328 Change-Id: I0720a165a15c7187892c8c1a0662ec598354ac06 Signed-off-by: David Nieto <dmartineznie@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1644708 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>