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gpu: nvgpu: update SSMD array size

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-Update SSMD array size to hold all supported super-surface
members
-Handle the error and report if invalid SSMD ID is found.

issue: At present SSMD array size set to 32 but overall
33 super-surface members are supported, when 33rd member
accessed system crash happened due to overflow access,
so fixing it by setting the SSMD array size to actual
number of super-surface members supported

Bug 200721968
Bug 200721966

Change-Id: I5ba1084a661d7497056f13a053d2fc79d50f595c
Signed-off-by: mkumbar <mkumbar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2528569
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
mkumbar
2021-05-12 20:50:29 +05:30
committed by mobile promotions
parent 2514814851
commit d2349b32ec
4 changed files with 29 additions and 9 deletions
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4
drivers/gpu/nvgpu/include/nvgpu/pmu/super_surface.h
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2019-2020, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2019-2021, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -63,7 +63,7 @@ u32 nvgpu_pmu_get_ss_member_get_status_offset(struct gk20a *g,
struct nvgpu_pmu *pmu, u32 member_id);
u32 nvgpu_pmu_get_ss_member_get_status_size(struct gk20a *g,
struct nvgpu_pmu *pmu, u32 member_id);
void nvgpu_pmu_ss_create_ssmd_lookup_table(struct gk20a *g,
int nvgpu_pmu_ss_create_ssmd_lookup_table(struct gk20a *g,
struct nvgpu_pmu *pmu, struct nvgpu_pmu_super_surface *ss);
struct nvgpu_mem *nvgpu_pmu_super_surface_mem(struct gk20a *g,
struct nvgpu_pmu *pmu, struct nvgpu_pmu_super_surface *ss);