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gpu: nvgpu: unit: increase coverage and docs for mm

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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
2020-01-16 13:45:41 -05:00
committed by Alex Waterman
parent a3d91c4f47
commit ea2563c033
17 changed files with 615 additions and 99 deletions
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95
userspace/units/mm/vm/vm.h
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2019-2020, 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"),
@@ -43,7 +43,9 @@ struct unit_module;
* Targets: nvgpu_vm_init, nvgpu_vm_get_buffers, nvgpu_big_pages_possible,
* nvgpu_vm_area_alloc, nvgpu_vm_map, nvgpu_vm_find_mapped_buf_range,
* nvgpu_vm_find_mapped_buf_less_than, nvgpu_get_pte, nvgpu_vm_put_buffers,
* nvgpu_vm_unmap, nvgpu_vm_area_free, nvgpu_vm_put
* nvgpu_vm_unmap, nvgpu_vm_area_free, nvgpu_vm_put, nvgpu_vm_find_mapped_buf,
* nvgpu_vm_area_find, nvgpu_vm_unmap_ref_internal, nvgpu_vm_unmap_system,
* nvgpu_os_buf_get_size
*
* Input: None
*
@@ -91,7 +93,7 @@ int test_map_buf(struct unit_module *m, struct gk20a *g, void *__args);
* nvgpu_vm_area_alloc, nvgpu_vm_map, nvgpu_vm_find_mapped_buf_range,
* nvgpu_vm_find_mapped_buf_less_than, nvgpu_get_pte, nvgpu_vm_put_buffers,
* nvgpu_vm_unmap, nvgpu_vm_area_free, nvgpu_vm_put,
* nvgpu_gmmu_va_small_page_limit
* nvgpu_gmmu_va_small_page_limit, nvgpu_vm_find_mapping
*
* Input: None
*
@@ -138,7 +140,7 @@ int test_map_buf_gpu_va(struct unit_module *m, struct gk20a *g, void *__args);
* nvgpu_vm_map, nvgpu_vm_find_mapped_buf_range,
* nvgpu_vm_find_mapped_buf_less_than, nvgpu_get_pte, nvgpu_vm_put_buffers,
* nvgpu_vm_unmap, nvgpu_vm_area_free, nvgpu_vm_put,
* nvgpu_vm_mapping_batch_finish
* nvgpu_vm_mapping_batch_finish, nvgpu_vm_mapping_batch_finish_locked
*
* Input: None
*
@@ -161,11 +163,11 @@ int test_batch(struct unit_module *m, struct gk20a *g, void *__args);
* Test specification for: test_init_error_paths
*
* Description: This test exercises the VM unit initialization code and covers
* a number of error paths.
* a number of error paths as well as reference counting mechanisms.
*
* Test Type: Feature, Error injection
*
* Targets: nvgpu_vm_init, nvgpu_vm_do_init
* Targets: nvgpu_vm_init, nvgpu_vm_do_init, nvgpu_vm_get, nvgpu_vm_put
*
* Input: None
*
@@ -196,6 +198,9 @@ int test_batch(struct unit_module *m, struct gk20a *g, void *__args);
* unified VA space.
* - Ensure that nvgpu_vm_do_init succeeds with big pages disabled.
* - Ensure that nvgpu_vm_do_init succeeds with no user VMA.
* - Ensure that reference count of the VM is 1. Then increment it using
* nvgpu_vm_get and ensure it is 2. Decrement it with nvgpu_vm_put and ensure
* it is back to 1.
* - Uninitialize the VM
*
* Output: Returns PASS if the steps above were executed successfully. FAIL
@@ -247,7 +252,7 @@ int test_map_buffer_error_cases(struct unit_module *m, struct gk20a *g,
*
* Test Type: Feature, Error injection
*
* Targets: nvgpu_vm_alloc_va
* Targets: nvgpu_vm_alloc_va, nvgpu_vm_free_va
*
* Input: None
*
@@ -283,7 +288,7 @@ int test_nvgpu_vm_alloc_va(struct unit_module *m, struct gk20a *g,
*
* Test Type: Feature
*
* Targets: nvgpu_vm_bind_channel
* Targets: gops_mm.vm_bind_channel, nvgpu_vm_bind_channel
*
* Input: None
*
@@ -379,5 +384,79 @@ int test_vm_aspace_id(struct unit_module *m, struct gk20a *g, void *__args);
*/
int test_vm_area_error_cases(struct unit_module *m, struct gk20a *g,
void *__args);
/**
* Test specification for: test_gk20a_from_vm
*
* Description: Simple test to check gk20a_from_vm.
*
* Test Type: Feature
*
* Targets: gk20a_from_vm
*
* Input: None
*
* Steps:
* - Create a test VM.
* - Call gk20a_from_vm with the test vm pointer and ensure it returns a
* pointer on g.
* - Uninitialize the VM.
*
* Output: Returns PASS if the steps above were executed successfully. FAIL
* otherwise.
*/
int test_gk20a_from_vm(struct unit_module *m, struct gk20a *g, void *args);
/**
* Test specification for: test_nvgpu_insert_mapped_buf
*
* Description: Tests the logic of nvgpu_insert_mapped_buf
*
* Test Type: Feature
*
* Targets: nvgpu_insert_mapped_buf, mapped_buffer_from_rbtree_node
*
* Input: None
*
* Steps:
* - Create a test VM.
* - Set an arbitrary test address.
* - Search in the vm->mapped_buffers RBTree to ensure that the arbitrary test
* address has no mapped buffers already.
* - Instantiate a struct nvgpu_mapped_buf and set its address to the arbitrary
* address with a size of 64KB and big pages.
* - Call nvgpu_insert_mapped_buf on the struct nvgpu_mapped_buf.
* - Search again the vm->mapped_buffers RBTree and ensure the buffer can be
* found.
* - Uninitialize the VM.
*
* Output: Returns PASS if the steps above were executed successfully. FAIL
* otherwise.
*/
int test_nvgpu_insert_mapped_buf(struct unit_module *m, struct gk20a *g,
void *args);
/**
* Test specification for: test_vm_pde_coverage_bit_count
*
* Description: Tests the logic of nvgpu_vm_pde_coverage_bit_count
*
* Test Type: Feature
*
* Targets: nvgpu_vm_pde_coverage_bit_count
*
* Input: None
*
* Steps:
* - Create a test VM.
* - Call nvgpu_vm_pde_coverage_bit_count and ensure it returns the expected
* value of 21 (for GP10B and following chips).
* - Uninitialize the VM.
*
* Output: Returns PASS if the steps above were executed successfully. FAIL
* otherwise.
*/
int test_vm_pde_coverage_bit_count(struct unit_module *m, struct gk20a *g,
void *args);
/** }@ */
#endif /* UNIT_VM_H */