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gpu: nvgpu: unit: SWUTS for mm.allocator.buddy

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Add buddy_allocator.h header that contains SWUTS for the unit.

Jira NVGPU-3943

Change-Id: If4bc32e7e381c0910f773c7c3b0f1d6f9336b8fb
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2193638
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Vedashree Vidwans
2019-09-09 13:18:55 -07:00
committed by Alex Waterman
parent 8a7e76b8a2
commit f8a2c53476
4 changed files with 264 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
userspace/units/mm/allocators/buddy_allocator/buddy_allocator.c
View File

@@ -34,9 +34,10 @@
#include <hal/bus/bus_gk20a.h>
#include <hal/mm/gmmu/gmmu_gp10b.h>
#include <nvgpu/hw/gk20a/hw_pram_gk20a.h>
#include "buddy_allocator.h"
#define SZ_8K (SZ_4K << 1)
#define BA_DEFAULT_BASE SZ_4K
#define BA_DEFAULT_SIZE SZ_1M
@@ -122,7 +123,7 @@ static struct vm_gk20a *init_vm_env(struct unit_module *m, struct gk20a *g,
* nvgpu_buddy_allocator initialized with big pages enabled vm
* Test buddy allocator functionality with big pages
*/
static int test_buddy_allocator_with_big_pages(struct unit_module *m,
int test_buddy_allocator_with_big_pages(struct unit_module *m,
struct gk20a *g, void *args)
{
u64 base = 0x4000000; /* PDE aligned */
@@ -268,7 +269,7 @@ fail:
* nvgpu_buddy_allocator initialized with big pages disabled
* Test buddy allocator functionality with big pages
*/
static int test_buddy_allocator_with_small_pages(struct unit_module *m,
int test_buddy_allocator_with_small_pages(struct unit_module *m,
struct gk20a *g, void *args)
{
u64 base = SZ_1K;
@@ -420,7 +421,7 @@ fail:
/*
* Test buddy_allocator allocs
*/
static int test_nvgpu_buddy_allocator_alloc(struct unit_module *m,
int test_nvgpu_buddy_allocator_alloc(struct unit_module *m,
struct gk20a *g, void *args)
{
u64 base = SZ_4K;
@@ -600,7 +601,7 @@ cleanup:
/*
* Tests buddy_allocator carveouts
*/
static int test_nvgpu_buddy_allocator_carveout(struct unit_module *m,
int test_nvgpu_buddy_allocator_carveout(struct unit_module *m,
struct gk20a *g, void *args)
{
int err;
@@ -702,7 +703,7 @@ static int test_nvgpu_buddy_allocator_carveout(struct unit_module *m,
/*
* Tests buddy_allocator basic ops and allocations
*/
static int test_nvgpu_buddy_allocator_basic_ops(struct unit_module *m,
int test_nvgpu_buddy_allocator_basic_ops(struct unit_module *m,
struct gk20a *g, void *args)
{
u64 addr;
@@ -815,7 +816,7 @@ static int test_nvgpu_buddy_allocator_basic_ops(struct unit_module *m,
/*
* De-initialize buddy allocator
*/
static int test_nvgpu_buddy_allocator_destroy(struct unit_module *m,
int test_nvgpu_buddy_allocator_destroy(struct unit_module *m,
struct gk20a *g, void *args)
{
na->ops->fini(na);
@@ -827,7 +828,7 @@ static int test_nvgpu_buddy_allocator_destroy(struct unit_module *m,
* Tests nvgpu_buddy_allocator_init()
* This test considers multiple conditions to initialize buddy allocator
*/
static int test_nvgpu_buddy_allocator_init(struct unit_module *m,
int test_nvgpu_buddy_allocator_init(struct unit_module *m,
struct gk20a *g, void *args)
{
u64 base = BA_DEFAULT_BASE;

253
userspace/units/mm/allocators/buddy_allocator/buddy_allocator.h Normal file
View File

@@ -0,0 +1,253 @@
/*
* Copyright (c) 2019, 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"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef UNIT_BUDDY_ALLOCATOR_H
#define UNIT_BUDDY_ALLOCATOR_H
struct gk20a;
struct unit_module;
/** @addtogroup SWUTS-mm-allocators-buddy-allocator
* @{
*
* Software Unit Test Specification for mm.allocators.buddy_allocator
*/
/**
* Test specification for: test_nvgpu_buddy_allocator_init
*
* Description: Initialize buddy allocator.
*
* Test Type: Feature based
*
* Input: None
*
* Steps:
* - Allocate memory for nvgpu allocator
* - Initialize buddy allocator with different parameters to test init function.
* - zero block size.
* - block size which is not power of 2.
* - max order set greater than GPU_BALLOC_MAX_ORDER.
* - zero memory size.
* - base address zero.
* - unaligned base address.
* - Confirm the output of the above test cases is as expected.
* - Initialize buddy allocator with following attributes.
* - 4K base address.
* - 1M memory size.
* - 4K block size.
* - max order equal to GPU_BALLOC_MAX_ORDER.
* - flags set to NULL.
* - NULL vm.
* - GVA space disabled.
* - This initialized allocator will be used for this unit test.
*
* Output: Returns SUCCESS if the steps above were executed successfully. FAIL
* otherwise.
*/
int test_nvgpu_buddy_allocator_init(struct unit_module *m,
struct gk20a *g, void *args);
/**
* Test specification for: test_nvgpu_buddy_allocator_carveout
*
* Description: Test allocation of carveouts.
*
* Test Type: Feature based
*
* Input: test_nvgpu_buddy_allocator_init
*
* Steps:
* - Allocate segment of memory as carveout.
* - Use reserved_carveout operation of buddy allocator to portion out segment
* of memory.
* - Confirm that the carveout is successful.
* - Test carveout allocation with below variations.
* - Carveout base address less than buddy allocator base address.
* - Carveout length more than buddy allocator size.
* - Unaligned base address.
* - Reserve carveout after normal memory allocation.
*
* Output: Returns SUCCESS if the steps above were executed successfully. FAIL
* otherwise.
*/
int test_nvgpu_buddy_allocator_carveout(struct unit_module *m,
struct gk20a *g, void *args);
/**
* Test specification for: test_nvgpu_buddy_allocator_basic_ops
*
* Description: Test buddy allocator attribute and allocation functions.
*
* Test Type: Feature based
*
* Input: test_nvgpu_buddy_allocator_init
*
* Steps:
* - Check buddy allocator attribute values.
* - Use buddy allocator ops to check base, length, end and space values.
* - Confirm that values match init values.
* - Test memory allocation functions.
* - Use alloc and alloc_fixed ops to allocate chunk of memory
* - Confirm allocation is successful.
* - Test allocation ops with below vaiations.
* - Zero length memory segment.
* - Allocate more than available memory.
* - Unaligned base.
* - Base address equal to previously assigned carveout base.
* - Zero PTE size.
*
* Output: Returns SUCCESS if the steps above were executed successfully. FAIL
* otherwise.
*/
int test_nvgpu_buddy_allocator_basic_ops(struct unit_module *m,
struct gk20a *g, void *args);
/**
* Test specification for: test_nvgpu_buddy_allocator_destroy
*
* Description: Free buddy allocator used for previous tests.
*
* Test Type: Other (cleanup)
*
* Input: test_nvgpu_buddy_allocator_init
*
* Steps:
* - Free using buddy allocator fini ops
* - Free nvgpu allocator
*
* Output: Returns SUCCESS if the steps above were executed successfully. FAIL
* otherwise.
*/
int test_nvgpu_buddy_allocator_destroy(struct unit_module *m,
struct gk20a *g, void *args);
/**
* Test specification for: test_nvgpu_buddy_allocator_alloc
*
* Description: Test cleanup branch of memory allocations.
*
* Test Type: Feature based
*
* Input: None
*
* Steps:
* - Allocate nvgpu and buddy allocator for this test
* - 4K base address.
* - 1M memory size.
* - 1K block size.
* - Zero max order.
* - flags set to 0.
* - NULL vm.
* - GVA space disabled.
* - Inject fault at specific step to test alloc function cleanup.
* - Allocate fixed memory segment, when part of memory is already allocated.
* - Use alloc_fixed to test if such allocation is successful
* - Test buddy allocator destroy function
* - Increase count of buddy, split buddy and alloced buddy list lengths one
* by one and check if destroy function triggers BUG()
* - Free nvgpu and buddy allocator used in this test
*
* Output: Returns SUCCESS if the steps above were executed successfully. FAIL
* otherwise.
*/
int test_nvgpu_buddy_allocator_alloc(struct unit_module *m,
struct gk20a *g, void *args);
/**
* Test specification for: test_buddy_allocator_with_small_pages
*
* Description: Test buddy allocator functions with big pages disabled.
*
* Test Type: Feature based
*
* Input: None
*
* Steps:
* - Initialize vm environment with below characteristics.
* - low_hole = 64K.
* - aperture_size = GK20A_PMU_VA_SIZE.
* - kernel_reserved = aperture_size - low_hole.
* - flags = GPU_ALLOC_GVA_SPACE, GVA space enabled.
* - userspace_managed = false, unified_va = false.
* - big_pages = false.
* - Initialize buddy allocator for this test.
* - Base address = 1K.
* - Allocator size = 1M.
* - Block size = 1K.
* - max order = 10.
* - GVA space enabled.
* - vm initialized in the previous step.
* - Test sincere allocations with buddy allocator ops.
* - Test alloc ops with below variations.
* - Request more than available memory.
* - Alloc with size unaligned with respect to PTE size.
* - unusual page size.
* - Length zero memory segment.
* - Inject faults to test cleanup code.
* - Free buddy allocator.
* - Free vm environment.
*
* Output: Returns SUCCESS if the steps above were executed successfully. FAIL
* otherwise.
*/
int test_buddy_allocator_with_small_pages(struct unit_module *m,
struct gk20a *g, void *args);
/**
* Test specification for: test_buddy_allocator_with_big_pages
*
* Description: Test buddy allocator functions with big pages enabled.
*
* Test Type: Feature based
*
* Input: None
*
* Steps:
* - Initialize vm environment with below characteristics.
* - low_hole = 64K.
* - aperture_size = GK20A_PMU_VA_SIZE.
* - kernel_reserved = aperture_size - low_hole.
* - flags = GPU_ALLOC_GVA_SPACE, GVA space enabled.
* - userspace_managed = false, unified_va = false.
* - big_pages = true.
* - Initialize buddy allocator for this test.
* - Base address = 64M, PDE aligned.
* - Allocator size = 256M.
* - Block size = 4K.
* - max order = GPU_BALLOC_MAX_ORDER.
* - GVA space enabled.
* - vm initialized in the previous step.
* - Test sincere allocations with buddy allocator ops
* - Test alloc ops with below variations
* - base address less than buddy allocator base address
* - unusual page size
* - Free buddy allocator
* - Free vm environment
*
* Output: Returns SUCCESS if the steps above were executed successfully. FAIL
* otherwise.
*/
int test_buddy_allocator_with_big_pages(struct unit_module *m,
struct gk20a *g, void *args);
#endif /* UNIT_BUDDY_ALLOCATOR_H */