mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 03:10:12 +00:00
![Arvind Yadav](/assets/img/avatar_default.png)
Here's enabling software signaling on fence for selftest. Signed-off-by: Arvind Yadav <Arvind.Yadav@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220914164321.2156-4-Arvind.Yadav@amd.com Signed-off-by: Christian König <christian.koenig@amd.com>
382 lines
6.5 KiB
C
382 lines
6.5 KiB
C
// SPDX-License-Identifier: MIT
|
|
|
|
/*
|
|
* Copyright (C) 2022 Advanced Micro Devices, Inc.
|
|
*/
|
|
|
|
#include <linux/dma-fence.h>
|
|
#include <linux/dma-fence-array.h>
|
|
#include <linux/dma-fence-chain.h>
|
|
#include <linux/dma-fence-unwrap.h>
|
|
|
|
#include "selftest.h"
|
|
|
|
#define CHAIN_SZ (4 << 10)
|
|
|
|
struct mock_fence {
|
|
struct dma_fence base;
|
|
spinlock_t lock;
|
|
};
|
|
|
|
static const char *mock_name(struct dma_fence *f)
|
|
{
|
|
return "mock";
|
|
}
|
|
|
|
static const struct dma_fence_ops mock_ops = {
|
|
.get_driver_name = mock_name,
|
|
.get_timeline_name = mock_name,
|
|
};
|
|
|
|
static struct dma_fence *mock_fence(void)
|
|
{
|
|
struct mock_fence *f;
|
|
|
|
f = kmalloc(sizeof(*f), GFP_KERNEL);
|
|
if (!f)
|
|
return NULL;
|
|
|
|
spin_lock_init(&f->lock);
|
|
dma_fence_init(&f->base, &mock_ops, &f->lock,
|
|
dma_fence_context_alloc(1), 1);
|
|
|
|
return &f->base;
|
|
}
|
|
|
|
static struct dma_fence *mock_array(unsigned int num_fences, ...)
|
|
{
|
|
struct dma_fence_array *array;
|
|
struct dma_fence **fences;
|
|
va_list valist;
|
|
int i;
|
|
|
|
fences = kcalloc(num_fences, sizeof(*fences), GFP_KERNEL);
|
|
if (!fences)
|
|
goto error_put;
|
|
|
|
va_start(valist, num_fences);
|
|
for (i = 0; i < num_fences; ++i)
|
|
fences[i] = va_arg(valist, typeof(*fences));
|
|
va_end(valist);
|
|
|
|
array = dma_fence_array_create(num_fences, fences,
|
|
dma_fence_context_alloc(1),
|
|
1, false);
|
|
if (!array)
|
|
goto error_free;
|
|
return &array->base;
|
|
|
|
error_free:
|
|
kfree(fences);
|
|
|
|
error_put:
|
|
va_start(valist, num_fences);
|
|
for (i = 0; i < num_fences; ++i)
|
|
dma_fence_put(va_arg(valist, typeof(*fences)));
|
|
va_end(valist);
|
|
return NULL;
|
|
}
|
|
|
|
static struct dma_fence *mock_chain(struct dma_fence *prev,
|
|
struct dma_fence *fence)
|
|
{
|
|
struct dma_fence_chain *f;
|
|
|
|
f = dma_fence_chain_alloc();
|
|
if (!f) {
|
|
dma_fence_put(prev);
|
|
dma_fence_put(fence);
|
|
return NULL;
|
|
}
|
|
|
|
dma_fence_chain_init(f, prev, fence, 1);
|
|
return &f->base;
|
|
}
|
|
|
|
static int sanitycheck(void *arg)
|
|
{
|
|
struct dma_fence *f, *chain, *array;
|
|
int err = 0;
|
|
|
|
f = mock_fence();
|
|
if (!f)
|
|
return -ENOMEM;
|
|
|
|
dma_fence_enable_sw_signaling(f);
|
|
|
|
array = mock_array(1, f);
|
|
if (!array)
|
|
return -ENOMEM;
|
|
|
|
chain = mock_chain(NULL, array);
|
|
if (!chain)
|
|
return -ENOMEM;
|
|
|
|
dma_fence_put(chain);
|
|
return err;
|
|
}
|
|
|
|
static int unwrap_array(void *arg)
|
|
{
|
|
struct dma_fence *fence, *f1, *f2, *array;
|
|
struct dma_fence_unwrap iter;
|
|
int err = 0;
|
|
|
|
f1 = mock_fence();
|
|
if (!f1)
|
|
return -ENOMEM;
|
|
|
|
dma_fence_enable_sw_signaling(f1);
|
|
|
|
f2 = mock_fence();
|
|
if (!f2) {
|
|
dma_fence_put(f1);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dma_fence_enable_sw_signaling(f2);
|
|
|
|
array = mock_array(2, f1, f2);
|
|
if (!array)
|
|
return -ENOMEM;
|
|
|
|
dma_fence_unwrap_for_each(fence, &iter, array) {
|
|
if (fence == f1) {
|
|
f1 = NULL;
|
|
} else if (fence == f2) {
|
|
f2 = NULL;
|
|
} else {
|
|
pr_err("Unexpected fence!\n");
|
|
err = -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (f1 || f2) {
|
|
pr_err("Not all fences seen!\n");
|
|
err = -EINVAL;
|
|
}
|
|
|
|
dma_fence_put(array);
|
|
return err;
|
|
}
|
|
|
|
static int unwrap_chain(void *arg)
|
|
{
|
|
struct dma_fence *fence, *f1, *f2, *chain;
|
|
struct dma_fence_unwrap iter;
|
|
int err = 0;
|
|
|
|
f1 = mock_fence();
|
|
if (!f1)
|
|
return -ENOMEM;
|
|
|
|
dma_fence_enable_sw_signaling(f1);
|
|
|
|
f2 = mock_fence();
|
|
if (!f2) {
|
|
dma_fence_put(f1);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dma_fence_enable_sw_signaling(f2);
|
|
|
|
chain = mock_chain(f1, f2);
|
|
if (!chain)
|
|
return -ENOMEM;
|
|
|
|
dma_fence_unwrap_for_each(fence, &iter, chain) {
|
|
if (fence == f1) {
|
|
f1 = NULL;
|
|
} else if (fence == f2) {
|
|
f2 = NULL;
|
|
} else {
|
|
pr_err("Unexpected fence!\n");
|
|
err = -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (f1 || f2) {
|
|
pr_err("Not all fences seen!\n");
|
|
err = -EINVAL;
|
|
}
|
|
|
|
dma_fence_put(chain);
|
|
return err;
|
|
}
|
|
|
|
static int unwrap_chain_array(void *arg)
|
|
{
|
|
struct dma_fence *fence, *f1, *f2, *array, *chain;
|
|
struct dma_fence_unwrap iter;
|
|
int err = 0;
|
|
|
|
f1 = mock_fence();
|
|
if (!f1)
|
|
return -ENOMEM;
|
|
|
|
dma_fence_enable_sw_signaling(f1);
|
|
|
|
f2 = mock_fence();
|
|
if (!f2) {
|
|
dma_fence_put(f1);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dma_fence_enable_sw_signaling(f2);
|
|
|
|
array = mock_array(2, f1, f2);
|
|
if (!array)
|
|
return -ENOMEM;
|
|
|
|
chain = mock_chain(NULL, array);
|
|
if (!chain)
|
|
return -ENOMEM;
|
|
|
|
dma_fence_unwrap_for_each(fence, &iter, chain) {
|
|
if (fence == f1) {
|
|
f1 = NULL;
|
|
} else if (fence == f2) {
|
|
f2 = NULL;
|
|
} else {
|
|
pr_err("Unexpected fence!\n");
|
|
err = -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (f1 || f2) {
|
|
pr_err("Not all fences seen!\n");
|
|
err = -EINVAL;
|
|
}
|
|
|
|
dma_fence_put(chain);
|
|
return err;
|
|
}
|
|
|
|
static int unwrap_merge(void *arg)
|
|
{
|
|
struct dma_fence *fence, *f1, *f2, *f3;
|
|
struct dma_fence_unwrap iter;
|
|
int err = 0;
|
|
|
|
f1 = mock_fence();
|
|
if (!f1)
|
|
return -ENOMEM;
|
|
|
|
dma_fence_enable_sw_signaling(f1);
|
|
|
|
f2 = mock_fence();
|
|
if (!f2) {
|
|
err = -ENOMEM;
|
|
goto error_put_f1;
|
|
}
|
|
|
|
dma_fence_enable_sw_signaling(f2);
|
|
|
|
f3 = dma_fence_unwrap_merge(f1, f2);
|
|
if (!f3) {
|
|
err = -ENOMEM;
|
|
goto error_put_f2;
|
|
}
|
|
|
|
dma_fence_unwrap_for_each(fence, &iter, f3) {
|
|
if (fence == f1) {
|
|
dma_fence_put(f1);
|
|
f1 = NULL;
|
|
} else if (fence == f2) {
|
|
dma_fence_put(f2);
|
|
f2 = NULL;
|
|
} else {
|
|
pr_err("Unexpected fence!\n");
|
|
err = -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (f1 || f2) {
|
|
pr_err("Not all fences seen!\n");
|
|
err = -EINVAL;
|
|
}
|
|
|
|
dma_fence_put(f3);
|
|
error_put_f2:
|
|
dma_fence_put(f2);
|
|
error_put_f1:
|
|
dma_fence_put(f1);
|
|
return err;
|
|
}
|
|
|
|
static int unwrap_merge_complex(void *arg)
|
|
{
|
|
struct dma_fence *fence, *f1, *f2, *f3, *f4, *f5;
|
|
struct dma_fence_unwrap iter;
|
|
int err = -ENOMEM;
|
|
|
|
f1 = mock_fence();
|
|
if (!f1)
|
|
return -ENOMEM;
|
|
|
|
dma_fence_enable_sw_signaling(f1);
|
|
|
|
f2 = mock_fence();
|
|
if (!f2)
|
|
goto error_put_f1;
|
|
|
|
dma_fence_enable_sw_signaling(f2);
|
|
|
|
f3 = dma_fence_unwrap_merge(f1, f2);
|
|
if (!f3)
|
|
goto error_put_f2;
|
|
|
|
/* The resulting array has the fences in reverse */
|
|
f4 = dma_fence_unwrap_merge(f2, f1);
|
|
if (!f4)
|
|
goto error_put_f3;
|
|
|
|
/* Signaled fences should be filtered, the two arrays merged. */
|
|
f5 = dma_fence_unwrap_merge(f3, f4, dma_fence_get_stub());
|
|
if (!f5)
|
|
goto error_put_f4;
|
|
|
|
err = 0;
|
|
dma_fence_unwrap_for_each(fence, &iter, f5) {
|
|
if (fence == f1) {
|
|
dma_fence_put(f1);
|
|
f1 = NULL;
|
|
} else if (fence == f2) {
|
|
dma_fence_put(f2);
|
|
f2 = NULL;
|
|
} else {
|
|
pr_err("Unexpected fence!\n");
|
|
err = -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (f1 || f2) {
|
|
pr_err("Not all fences seen!\n");
|
|
err = -EINVAL;
|
|
}
|
|
|
|
dma_fence_put(f5);
|
|
error_put_f4:
|
|
dma_fence_put(f4);
|
|
error_put_f3:
|
|
dma_fence_put(f3);
|
|
error_put_f2:
|
|
dma_fence_put(f2);
|
|
error_put_f1:
|
|
dma_fence_put(f1);
|
|
return err;
|
|
}
|
|
|
|
int dma_fence_unwrap(void)
|
|
{
|
|
static const struct subtest tests[] = {
|
|
SUBTEST(sanitycheck),
|
|
SUBTEST(unwrap_array),
|
|
SUBTEST(unwrap_chain),
|
|
SUBTEST(unwrap_chain_array),
|
|
SUBTEST(unwrap_merge),
|
|
SUBTEST(unwrap_merge_complex),
|
|
};
|
|
|
|
return subtests(tests, NULL);
|
|
}
|