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gpu: nvgpu: Add ECC Support for GV11B in Linux

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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
This commit is contained in:
Debarshi Dutta
2021-05-17 14:08:25 +05:30
committed by mobile promotions
parent 5f88598b9e
commit 34993e4f7b
12 changed files with 867 additions and 8 deletions
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7
drivers/gpu/nvgpu/os/linux/os_linux.h
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2017-2020, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2017-2021, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -25,6 +25,7 @@
#include "cde.h"
#include "sched.h"
#include "ecc_linux.h"
struct nvgpu_os_linux_ops {
struct {
@@ -134,6 +135,10 @@ struct nvgpu_os_linux {
u64 regs_bus_addr;
#ifdef CONFIG_NVGPU_SUPPORT_LINUX_ECC_ERROR_REPORTING
struct nvgpu_ecc_reporting_linux ecc_reporting_linux;
#endif
struct nvgpu_os_linux_ops ops;
#ifdef CONFIG_DEBUG_FS