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path: root/drivers/gpu/nvgpu/gv100/nvlink_gv100.c
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* gpu: nvgpu: fix misc issue for dgpu code on QNX buildShashank Singh2018-04-10
| | | | | | | | | | | | | | | | - 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 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
* gpu: nvlink: change default link speed to 20GTejal Kudav2018-03-22
| | | | | | | | | | | | | | | | 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 Reviewed-by: Thomas Fleury <tfleury@nvidia.com> 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: fb hal to init and enable nvlinkThomas Fleury2018-02-26
| | | | | | | | | | | | | | | | 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 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> 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>