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gpu: nvgpu: unit: increase coverage and docs for mm
For common.mm subunits, this patch: - adds extra test cases for some lesser used APIs - updates SWUTS to add several functions to Targets fields. JIRA NVGPU-3510 Change-Id: I350fbe0927472e1a07385a8cf87e0f0a8bbb6a8c Signed-off-by: Nicolas Benech <nbenech@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2280067 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Nicolas Benech
committed by
Alex Waterman
Alex Waterman
parent
a3d91c4f47
commit
ea2563c033
@@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
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* Copyright (c) 2019-2020, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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@@ -69,8 +69,8 @@ int test_nvgpu_gmmu_map_unmap_map_fail(struct unit_module *m, struct gk20a *g,
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*
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* Test Type: Feature
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*
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* Targets: nvgpu_gmmu_map_fixed, nvgpu_gmmu_map, nvgpu_get_pte,
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* nvgpu_gmmu_unmap
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* Targets: nvgpu_gmmu_map_fixed, gops_mm.gops_mm_gmmu.map, nvgpu_gmmu_map,
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* nvgpu_get_pte, gops_mm.gops_mm_gmmu.unmap, nvgpu_gmmu_unmap
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*
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* Input: args as a struct test_parameters to hold scenario and test parameters.
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*
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@@ -103,7 +103,8 @@ int test_nvgpu_gmmu_map_unmap(struct unit_module *m, struct gk20a *g,
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*
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* Test Type: Feature
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*
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* Targets: nvgpu_gmmu_map_locked, nvgpu_gmmu_unmap
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* Targets: gops_mm.gops_mm_gmmu.map, nvgpu_gmmu_map_locked,
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* gops_mm.gops_mm_gmmu.unmap, nvgpu_gmmu_unmap, gk20a_from_vm
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*
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* Input: args as a struct test_parameters to hold scenario and test parameters.
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*
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@@ -128,7 +129,8 @@ int test_nvgpu_gmmu_map_unmap_adv(struct unit_module *m, struct gk20a *g,
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*
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* Test Type: Feature
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*
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* Targets: nvgpu_gmmu_map_locked, nvgpu_gmmu_unmap
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* Targets: nvgpu_gmmu_map_locked, nvgpu_gmmu_unmap, gops_mm.gops_mm_gmmu.unmap,
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* nvgpu_gmmu_unmap_locked
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*
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* Input: args as a struct test_parameters to hold scenario and test parameters.
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*
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@@ -157,8 +159,9 @@ int test_nvgpu_gmmu_map_unmap_batched(struct unit_module *m, struct gk20a *g,
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*
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* Test Type: Feature
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*
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* Targets: nvgpu_vm_init, nvgpu_gmmu_map, nvgpu_gmmu_map_locked,
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* nvgpu_gmmu_unmap, nvgpu_vm_put
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* Targets: nvgpu_vm_init, nvgpu_gmmu_map, gops_mm.gops_mm_gmmu.map,
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* nvgpu_gmmu_map_locked, gops_mm.gops_mm_gmmu.unmap, nvgpu_gmmu_unmap,
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* nvgpu_vm_put
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*
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* Input: None
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*
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@@ -189,8 +192,8 @@ int test_nvgpu_page_table_c1_full(struct unit_module *m, struct gk20a *g,
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*
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* Test Type: Feature
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*
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* Targets: nvgpu_vm_init, nvgpu_gmmu_map_fixed, nvgpu_gmmu_unmap,
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* nvgpu_vm_put
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* Targets: nvgpu_vm_init, gops_mm.gops_mm_gmmu.map, nvgpu_gmmu_map_fixed,
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* gops_mm.gops_mm_gmmu.unmap, nvgpu_gmmu_unmap, nvgpu_vm_put
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*
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* Input: None
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*
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@@ -211,5 +214,132 @@ int test_nvgpu_page_table_c1_full(struct unit_module *m, struct gk20a *g,
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int test_nvgpu_page_table_c2_full(struct unit_module *m, struct gk20a *g,
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void *args);
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/**
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* Test specification for: test_nvgpu_gmmu_init_page_table_fail
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*
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* Description: Test special corner cases causing nvgpu_gmmu_init_page_table
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* to fail, mostly to cover error handling and some branches.
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*
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* Test Type: Error injection
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*
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* Targets: nvgpu_gmmu_init_page_table
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*
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* Input: None
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*
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* Steps:
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* - Enable KMEM fault injection.
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* - Call nvgpu_gmmu_init_page_table.
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* - Disable KMEM fault injection.
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* - Ensure that nvgpu_gmmu_init_page_table failed as expected.
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*
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* Output: Returns PASS if the steps above were executed successfully. FAIL
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* otherwise.
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*/
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int test_nvgpu_gmmu_init_page_table_fail(struct unit_module *m,
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struct gk20a *g, void *args);
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/**
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* Test specification for: test_nvgpu_gmmu_set_pte
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*
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* Description: This test targets the nvgpu_set_pte() function by mapping a
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* buffer, and then trying to alter the validity bit of the corresponding PTE.
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*
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* Test Type: Feature, Error injection
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*
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* Targets: nvgpu_get_pte, nvgpu_set_pte, nvgpu_pte_words
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*
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* Input: None
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*
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* Steps:
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* - Map a test buffer (dynamic) and get the assigned GPU VA.
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* - Ensure the mapping succeeded.
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* - Check that nvgpu_pte_words returns the expected value (2).
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* - Use nvgpu_get_pte to retrieve the PTE from the assigned GPU VA, ensure
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* it is valid.
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* - Call nvgpu_set_pte with an invalid address and ensure it failed.
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* - Using nvgpu_set_pte, rewrite the PTE with the validity bit flipped and
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* ensure it reports success.
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* - Retrieve the PTE again, ensure it succeeds and then check that the PTE
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* is invalid.
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*
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* Output: Returns PASS if the steps above were executed successfully. FAIL
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* otherwise.
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*/
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static int test_nvgpu_gmmu_set_pte(struct unit_module *m,
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struct gk20a *g, void *args);
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/**
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* Test specification for: test_nvgpu_gmmu_init
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*
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* Description: This test must be run once and be the first one as it
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* initializes the MM subsystem.
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*
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* Test Type: Other (setup), Feature
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*
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* Targets: nvgpu_gmmu_init_page_table, nvgpu_vm_init
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*
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* Input: None
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*
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* Steps:
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* - Set debug log masks if needed.
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* - For iGPU, enable the following flags: NVGPU_MM_UNIFIED_MEMORY,
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* NVGPU_USE_COHERENT_SYSMEM, NVGPU_SUPPORT_NVLINK
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* - Setup all the needed HALs.
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* - Create a test PMU VM to be used by other tests which will cause the
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* nvgpu_gmmu_init_page_table function to be called.
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*
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* Output: Returns PASS if the steps above were executed successfully. FAIL
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* otherwise.
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*/
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int test_nvgpu_gmmu_init(struct unit_module *m, struct gk20a *g, void *args);
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/**
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* Test specification for: test_nvgpu_gmmu_clean
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*
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* Description: This test should be the last one to run as it de-initializes
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* components.
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*
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* Test Type: Other (cleanup)
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*
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* Targets: None
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*
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* Input: None
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*
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* Steps:
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* - Set log mask to 0.
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* - Call nvgpu_vm_put to remove the test VM.
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*
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* Output: Returns PASS if the steps above were executed successfully. FAIL
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* otherwise.
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*/
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int test_nvgpu_gmmu_clean(struct unit_module *m, struct gk20a *g, void *args);
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/**
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* Test specification for: test_nvgpu_gmmu_perm_str
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*
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* Description: Tests all supported combinations of permissions on the
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* nvgpu_gmmu_perm_str function.
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*
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* Test Type: Feature
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*
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* Targets: nvgpu_gmmu_perm_str
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*
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* Input: None
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*
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* Steps:
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* - Call nvgpu_gmmu_perm_str with flag gk20a_mem_flag_none and ensure it
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* returns "RW"
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* - Call nvgpu_gmmu_perm_str with flag gk20a_mem_flag_write_only and ensure it
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* returns "WO"
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* - Call nvgpu_gmmu_perm_str with flag gk20a_mem_flag_read_only and ensure it
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* returns "RO"
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* - Call nvgpu_gmmu_perm_str with an invalid flag and ensure it
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* returns "??"
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*
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* Output: Returns PASS if the steps above were executed successfully. FAIL
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* otherwise.
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*/
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int test_nvgpu_gmmu_perm_str(struct unit_module *m, struct gk20a *g,
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void *args);
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/** }@ */
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#endif /* UNIT_PAGE_TABLE_H */
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