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authorDebarshi Dutta <ddutta@nvidia.com>2021-05-17 04:38:25 -0400
committermobile promotions <svcmobile_promotions@nvidia.com>2021-05-28 15:10:24 -0400
commit34993e4f7b0d47620e88ba64a6d7c67330d97e35 (patch)
tree2136284f5bd4095780884885413bb268fd318a96 /drivers/gpu/nvgpu/vgpu
parent5f88598b9e7b2cfe0387733577ece138a7bc912b (diff)
gpu: nvgpu: Add ECC Support for GV11B in Linux
Implement nvgpu plumbing to allow reporting ECC errors(corrected and uncorrected) to a L1SS service(if one exists). This patch includes the following 1) Added code that submits ECC error reports via the Interrupt context directly to a L1SS service in linux OS. 2) Added support for enabling/disabling the error reports via L1SS's registration/deregistration API. Nvgpu simply invokes an empty function until the registration is successful. 3) Added Spinlock to correctly handle concurrency for accessing the correct Ops for submitting requests. 4) Adds error reporting for a subset of interrupts that can be verified via external ECC injection logic. A subsequent patch will add the API for rest of the interrupts. 5) In case of critical(uncorrected errors), change nvgpu's state to quiesce state. Jira L4T-1187 Bug 200700400 Change-Id: Id31f70531fba355e94e72c4f9762593e7667a11c Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2530411 Tested-by: Bibek Basu <bbasu@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit
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