Quelle  cs_dsp_test_wmfw_error.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
//
// KUnit tests for cs_dsp.
//
// Copyright (C) 2024 Cirrus Logic, Inc. and
//                    Cirrus Logic International Semiconductor Ltd.
//

#include <kunit/device.h>
#include <kunit/resource.h>
#include <kunit/test.h>
#include <linux/build_bug.h>
#include <linux/firmware/cirrus/cs_dsp.h>
#include <linux/firmware/cirrus/cs_dsp_test_utils.h>
#include <linux/firmware/cirrus/wmfw.h>
#include <linux/random.h>
#include <linux/regmap.h>
#include <linux/string.h>
#include <linux/vmalloc.h>

KUNIT_DEFINE_ACTION_WRAPPER(_put_device_wrapper, put_device, struct device *);
KUNIT_DEFINE_ACTION_WRAPPER(_cs_dsp_remove_wrapper, cs_dsp_remove, struct cs_dsp *);

struct cs_dsp_test_local {
 struct cs_dsp_mock_xm_header *xm_header;
 struct cs_dsp_mock_wmfw_builder *wmfw_builder;
 int wmfw_version;
};

struct cs_dsp_wmfw_test_param {
 int block_type;
};

static const struct cs_dsp_mock_alg_def cs_dsp_wmfw_err_test_mock_algs[] = {
 {
  .id = 0xfafa,
  .ver = 0x100000,
  .xm_size_words = 164,
  .ym_size_words = 164,
  .zm_size_words = 164,
 },
};

static const struct cs_dsp_mock_coeff_def mock_coeff_template = {
 .shortname = "Dummy Coeff",
 .type = WMFW_CTL_TYPE_BYTES,
 .mem_type = WMFW_ADSP2_YM,
 .flags = WMFW_CTL_FLAG_VOLATILE,
 .length_bytes = 4,
};

/* Load a wmfw containing unknown blocks. They should be skipped. */
static void wmfw_load_with_unknown_blocks(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 unsigned int reg_addr;
 u8 *payload_data, *readback;
 u8 random_data[8];
 const unsigned int payload_size_bytes = 64;

 /* Add dummy XM header payload to wmfw */
 cs_dsp_mock_wmfw_add_data_block(local->wmfw_builder,
     WMFW_ADSP2_XM, 0,
     local->xm_header->blob_data,
     local->xm_header->blob_size_bytes);

 payload_data = kunit_kmalloc(test, payload_size_bytes, GFP_KERNEL);
 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, payload_data);
 get_random_bytes(payload_data, payload_size_bytes);

 readback = kunit_kzalloc(test, payload_size_bytes, GFP_KERNEL);
 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, readback);

 /* Add some unknown blocks at the start of the wmfw */
 get_random_bytes(random_data, sizeof(random_data));
 cs_dsp_mock_wmfw_add_raw_block(local->wmfw_builder, 0xf5, 0,
           random_data, sizeof(random_data));
 cs_dsp_mock_wmfw_add_raw_block(local->wmfw_builder, 0xc0, 0, random_data,
           sizeof(random_data));
 cs_dsp_mock_wmfw_add_raw_block(local->wmfw_builder, 0x33, 0, NULL, 0);

 /* Add a single payload to be written to DSP memory */
 cs_dsp_mock_wmfw_add_data_block(local->wmfw_builder,
     WMFW_ADSP2_YM, 0,
     payload_data, payload_size_bytes);

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);

 /* Check that the payload was written to memory */
 reg_addr = cs_dsp_mock_base_addr_for_mem(priv, WMFW_ADSP2_YM);
 KUNIT_EXPECT_EQ(test,
   regmap_raw_read(priv->dsp->regmap, reg_addr, readback, payload_size_bytes),
   0);
 KUNIT_EXPECT_MEMEQ(test, readback, payload_data, payload_size_bytes);
}

/* Load a wmfw that doesn't have a valid magic marker. */
static void wmfw_err_wrong_magic(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 memcpy((void *)wmfw->data, "WMDR", 4);
 KUNIT_EXPECT_LT(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);

 memcpy((void *)wmfw->data, "xMFW", 4);
 KUNIT_EXPECT_LT(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);

 memcpy((void *)wmfw->data, "WxFW", 4);
 KUNIT_EXPECT_LT(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);

 memcpy((void *)wmfw->data, "WMxW", 4);
 KUNIT_EXPECT_LT(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);

 memcpy((void *)wmfw->data, "WMFx", 4);
 KUNIT_EXPECT_LT(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);

 memset((void *)wmfw->data, 0, 4);
 KUNIT_EXPECT_LT(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);
}

/* Load a wmfw that is too short for a valid header. */
static void wmfw_err_too_short_for_header(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 do {
  wmfw->size--;

  KUNIT_EXPECT_EQ(test,
    cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
    -EOVERFLOW);
 } while (wmfw->size > 0);
}

/* Header length field isn't a valid header length. */
static void wmfw_err_bad_header_length(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;
 unsigned int real_len, len;

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 header = (struct wmfw_header *)wmfw->data;
 real_len = le32_to_cpu(header->len);

 for (len = 0; len < real_len; len++) {
  header->len = cpu_to_le32(len);
  KUNIT_EXPECT_EQ(test,
    cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
    -EOVERFLOW);
 }

 for (len = real_len + 1; len < real_len + 7; len++) {
  header->len = cpu_to_le32(len);
  KUNIT_EXPECT_EQ(test,
    cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
    -EOVERFLOW);
 }

 header->len = cpu_to_le32(0xffffffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 header->len = cpu_to_le32(0x80000000);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 header->len = cpu_to_le32(0x7fffffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);
}

/* Wrong core type in header. */
static void wmfw_err_bad_core_type(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 header = (struct wmfw_header *)wmfw->data;

 header->core = 0;
 KUNIT_EXPECT_LT(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);

 header->core = 1;
 KUNIT_EXPECT_LT(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);

 header->core = priv->dsp->type + 1;
 KUNIT_EXPECT_LT(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);

 header->core = 0xff;
 KUNIT_EXPECT_LT(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);
}

/* File too short to contain a full block header */
static void wmfw_too_short_for_block_header(struct kunit *test)
{
 const struct cs_dsp_wmfw_test_param *param = test->param_value;
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 unsigned int header_length;
 u32 dummy_payload = 0;

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);
 header_length = wmfw->size;
 kunit_kfree(test, wmfw);

 /* Add the block. A block must have at least 4 bytes of payload */
 cs_dsp_mock_wmfw_add_raw_block(local->wmfw_builder, param->block_type, 0,
           &dummy_payload, sizeof(dummy_payload));

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);
 KUNIT_ASSERT_GT(test, wmfw->size, header_length);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 for (wmfw->size--; wmfw->size > header_length; wmfw->size--) {
  KUNIT_EXPECT_EQ(test,
    cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
    -EOVERFLOW);
 }
}

/* File too short to contain the block payload */
static void wmfw_too_short_for_block_payload(struct kunit *test)
{
 const struct cs_dsp_wmfw_test_param *param = test->param_value;
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 static const u8 payload[256] = { };
 int i;

 cs_dsp_mock_wmfw_add_raw_block(local->wmfw_builder, param->block_type, 0,
           payload, sizeof(payload));

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 for (i = 0; i < sizeof(payload); i++) {
  wmfw->size--;
  KUNIT_EXPECT_EQ(test,
    cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
    -EOVERFLOW);
 }
}

/* Block payload length is a garbage value */
static void wmfw_block_payload_len_garbage(struct kunit *test)
{
 const struct cs_dsp_wmfw_test_param *param = test->param_value;
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;
 struct wmfw_region *region;
 u32 payload = 0;


 cs_dsp_mock_wmfw_add_raw_block(local->wmfw_builder, param->block_type, 0,
           &payload, sizeof(payload));

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 header = (struct wmfw_header *)wmfw->data;
 region = (struct wmfw_region *)&wmfw->data[le32_to_cpu(header->len)];

 /* Sanity check that we're looking at the correct part of the wmfw */
 KUNIT_ASSERT_EQ(test, le32_to_cpu(region->offset) >> 24, param->block_type);
 KUNIT_ASSERT_EQ(test, le32_to_cpu(region->len), sizeof(payload));

 region->len = cpu_to_le32(0x8000);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 region->len = cpu_to_le32(0xffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 region->len = cpu_to_le32(0x7fffffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 region->len = cpu_to_le32(0x80000000);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 region->len = cpu_to_le32(0xffffffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);
}

/* File too short to contain an algorithm header */
static void wmfw_too_short_for_alg_header(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 unsigned int header_length;

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);
 header_length = wmfw->size;
 kunit_kfree(test, wmfw);

 cs_dsp_mock_wmfw_start_alg_info_block(local->wmfw_builder,
           cs_dsp_wmfw_err_test_mock_algs[0].id,
           NULL, NULL);
 cs_dsp_mock_wmfw_end_alg_info_block(local->wmfw_builder);

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);
 KUNIT_ASSERT_GT(test, wmfw->size, header_length);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 for (wmfw->size--; wmfw->size > header_length; wmfw->size--) {
  KUNIT_EXPECT_EQ(test,
    cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
    -EOVERFLOW);
 }
}

/* V1 algorithm name does not have NUL terminator */
static void wmfw_v1_alg_name_unterminated(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;
 struct wmfw_region *region;
 struct wmfw_adsp_alg_data *alg_data;
 struct cs_dsp_coeff_ctl *ctl;

 /* Create alg info block with a coefficient */
 cs_dsp_mock_wmfw_start_alg_info_block(local->wmfw_builder,
           cs_dsp_wmfw_err_test_mock_algs[0].id,
           "abc", "de");
 cs_dsp_mock_wmfw_add_coeff_desc(local->wmfw_builder, &mock_coeff_template);
 cs_dsp_mock_wmfw_end_alg_info_block(local->wmfw_builder);

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 header = (struct wmfw_header *)wmfw->data;
 region = (struct wmfw_region *)&wmfw->data[le32_to_cpu(header->len)];
 alg_data = (struct wmfw_adsp_alg_data *)region->data;

 /* Sanity check we're pointing at the alg header */
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data->id), cs_dsp_wmfw_err_test_mock_algs[0].id);

 /* Write a string to the alg name that overflows the array */
 memset(alg_data->descr, 0, sizeof(alg_data->descr));
 memset(alg_data->name, 'A', sizeof(alg_data->name));
 memset(alg_data->descr, 'A', sizeof(alg_data->descr) - 1);

 /*
  * Sanity-check that a strlen would overflow alg_data->name.
  * FORTIFY_STRING obstructs testing what strlen() would actually
  * return, so instead verify that a strnlen() returns
  * sizeof(alg_data->name[]), therefore it doesn't have a NUL.
  */
 KUNIT_ASSERT_EQ(test, strnlen(alg_data->name, sizeof(alg_data->name)),
   sizeof(alg_data->name));

 /*
  * The alg name isn't stored, but cs_dsp parses the name field.
  * It should load the file successfully and create the control.
  * If FORTIFY_STRING is enabled it will detect a buffer overflow
  * if cs_dsp string length walks past end of alg name array.
  */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);
 ctl = list_first_entry_or_null(&priv->dsp->ctl_list, struct cs_dsp_coeff_ctl, list);
 KUNIT_ASSERT_NOT_NULL(test, ctl);
 KUNIT_EXPECT_EQ(test, ctl->subname_len, 0);
}

/* V2+ algorithm name exceeds length of containing block */
static void wmfw_v2_alg_name_exceeds_block(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;
 struct wmfw_region *region;
 __le32 *alg_data;

 cs_dsp_mock_wmfw_start_alg_info_block(local->wmfw_builder,
           cs_dsp_wmfw_err_test_mock_algs[0].id,
           "abc", NULL);
 cs_dsp_mock_wmfw_end_alg_info_block(local->wmfw_builder);

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 header = (struct wmfw_header *)wmfw->data;
 region = (struct wmfw_region *)&wmfw->data[le32_to_cpu(header->len)];
 alg_data = (__force __le32 *)region->data;

 /*
  * Sanity check we're pointing at the alg header of
  *   [     alg_id       ][name_len]abc
  */
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data[0]), cs_dsp_wmfw_err_test_mock_algs[0].id);
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data[1]), 3 | ('a' << 8) | ('b' << 16) | ('c' << 24));
 KUNIT_ASSERT_EQ(test, *(u8 *)&alg_data[1], 3);

 /* Set name string length longer than available space */
 *(u8 *)&alg_data[1] = 4;
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 *(u8 *)&alg_data[1] = 7;
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 *(u8 *)&alg_data[1] = 0x80;
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 *(u8 *)&alg_data[1] = 0xff;
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);
}

/* V2+ algorithm description exceeds length of containing block */
static void wmfw_v2_alg_description_exceeds_block(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;
 struct wmfw_region *region;
 __le32 *alg_data;

 cs_dsp_mock_wmfw_start_alg_info_block(local->wmfw_builder,
           cs_dsp_wmfw_err_test_mock_algs[0].id,
           "abc", "de");
 cs_dsp_mock_wmfw_end_alg_info_block(local->wmfw_builder);

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 header = (struct wmfw_header *)wmfw->data;
 region = (struct wmfw_region *)&wmfw->data[le32_to_cpu(header->len)];
 alg_data = (__force __le32 *)region->data;

 /*
  * Sanity check we're pointing at the alg header of
  *   [     alg_id       ][name_len]abc[desc_len]de
  */
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data[0]), cs_dsp_wmfw_err_test_mock_algs[0].id);
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data[2]), 2 | ('d' << 16) | ('e' << 24));
 KUNIT_ASSERT_EQ(test, le16_to_cpu(*(__le16 *)&alg_data[2]), 2);

 /* Set name string length longer than available space */
 *(__le16 *)&alg_data[2] = cpu_to_le16(4);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 *(__le16 *)&alg_data[2] = cpu_to_le16(7);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 *(__le16 *)&alg_data[2] = cpu_to_le16(0x80);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 *(__le16 *)&alg_data[2] = cpu_to_le16(0xff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 *(__le16 *)&alg_data[2] = cpu_to_le16(0x8000);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 *(__le16 *)&alg_data[2] = cpu_to_le16(0xffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);
}

/* V1 coefficient count exceeds length of containing block */
static void wmfw_v1_coeff_count_exceeds_block(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;
 struct wmfw_region *region;
 struct wmfw_adsp_alg_data *alg_data;

 /* Create alg info block with a coefficient */
 cs_dsp_mock_wmfw_start_alg_info_block(local->wmfw_builder,
           cs_dsp_wmfw_err_test_mock_algs[0].id,
           "abc", "de");
 cs_dsp_mock_wmfw_add_coeff_desc(local->wmfw_builder, &mock_coeff_template);
 cs_dsp_mock_wmfw_end_alg_info_block(local->wmfw_builder);

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 header = (struct wmfw_header *)wmfw->data;
 region = (struct wmfw_region *)&wmfw->data[le32_to_cpu(header->len)];
 alg_data = (struct wmfw_adsp_alg_data *)region->data;

 /* Sanity check we're pointing at the alg header */
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data->id), cs_dsp_wmfw_err_test_mock_algs[0].id);

 /* Add one to the coefficient count */
 alg_data->ncoeff = cpu_to_le32(le32_to_cpu(alg_data->ncoeff) + 1);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 /* Make the coefficient count garbage */
 alg_data->ncoeff = cpu_to_le32(0xffffffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 alg_data->ncoeff = cpu_to_le32(0x7fffffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 alg_data->ncoeff = cpu_to_le32(0x80000000);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);
}

/* V2+ coefficient count exceeds length of containing block */
static void wmfw_v2_coeff_count_exceeds_block(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;
 struct wmfw_region *region;
 __le32 *alg_data, *ncoeff;

 /* Create alg info block with a coefficient */
 cs_dsp_mock_wmfw_start_alg_info_block(local->wmfw_builder,
           cs_dsp_wmfw_err_test_mock_algs[0].id,
           "abc", "de");
 cs_dsp_mock_wmfw_add_coeff_desc(local->wmfw_builder, &mock_coeff_template);
 cs_dsp_mock_wmfw_end_alg_info_block(local->wmfw_builder);

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 header = (struct wmfw_header *)wmfw->data;
 region = (struct wmfw_region *)&wmfw->data[le32_to_cpu(header->len)];
 alg_data = (__force __le32 *)region->data;

 /* Sanity check we're pointing at the alg header */
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data[0]), cs_dsp_wmfw_err_test_mock_algs[0].id);

 ncoeff = (__force __le32 *)&alg_data[3];
 KUNIT_ASSERT_EQ(test, le32_to_cpu(*ncoeff), 1);

 /* Add one to the coefficient count */
 *ncoeff = cpu_to_le32(2);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 /* Make the coefficient count garbage */
 *ncoeff = cpu_to_le32(0xffffffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 *ncoeff = cpu_to_le32(0x7fffffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 *ncoeff = cpu_to_le32(0x80000000);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);
}

/* V2+ coefficient block size exceeds length of containing block */
static void wmfw_v2_coeff_block_size_exceeds_block(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;
 struct wmfw_region *region;
 __le32 *alg_data, *coeff;

 /* Create alg info block with a coefficient */
 cs_dsp_mock_wmfw_start_alg_info_block(local->wmfw_builder,
           cs_dsp_wmfw_err_test_mock_algs[0].id,
           "abc", "de");
 cs_dsp_mock_wmfw_add_coeff_desc(local->wmfw_builder, &mock_coeff_template);
 cs_dsp_mock_wmfw_end_alg_info_block(local->wmfw_builder);

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 header = (struct wmfw_header *)wmfw->data;
 region = (struct wmfw_region *)&wmfw->data[le32_to_cpu(header->len)];
 alg_data = (__force __le32 *)region->data;

 /* Sanity check we're pointing at the alg header */
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data[0]), cs_dsp_wmfw_err_test_mock_algs[0].id);

 /* Sanity check we're pointing at the coeff block */
 coeff = (__force __le32 *)&alg_data[4];
 KUNIT_ASSERT_EQ(test, le32_to_cpu(coeff[0]), mock_coeff_template.mem_type << 16);

 /* Add one to the block size */
 coeff[1] = cpu_to_le32(le32_to_cpu(coeff[1]) + 1);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 /* Make the block size garbage */
 coeff[1] = cpu_to_le32(0xffffffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 coeff[1] = cpu_to_le32(0x7fffffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 coeff[1] = cpu_to_le32(0x80000000);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);
}

/* V1 coeff name does not have NUL terminator */
static void wmfw_v1_coeff_name_unterminated(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;
 struct wmfw_region *region;
 struct wmfw_adsp_alg_data *alg_data;
 struct wmfw_adsp_coeff_data *coeff;
 struct cs_dsp_coeff_ctl *ctl;

 /* Create alg info block with a coefficient */
 cs_dsp_mock_wmfw_start_alg_info_block(local->wmfw_builder,
           cs_dsp_wmfw_err_test_mock_algs[0].id,
           "abc", "de");
 cs_dsp_mock_wmfw_add_coeff_desc(local->wmfw_builder, &mock_coeff_template);
 cs_dsp_mock_wmfw_end_alg_info_block(local->wmfw_builder);

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 header = (struct wmfw_header *)wmfw->data;
 region = (struct wmfw_region *)&wmfw->data[le32_to_cpu(header->len)];
 alg_data = (struct wmfw_adsp_alg_data *)region->data;

 /* Sanity check we're pointing at the alg header */
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data->id), cs_dsp_wmfw_err_test_mock_algs[0].id);
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data->ncoeff), 1);

 coeff = (void *)alg_data->data;

 /* Write a string to the coeff name that overflows the array */
 memset(coeff->descr, 0, sizeof(coeff->descr));
 memset(coeff->name, 'A', sizeof(coeff->name));
 memset(coeff->descr, 'A', sizeof(coeff->descr) - 1);

 /*
  * Sanity-check that a strlen would overflow coeff->name.
  * FORTIFY_STRING obstructs testing what strlen() would actually
  * return, so instead verify that a strnlen() returns
  * sizeof(coeff->name[]), therefore it doesn't have a NUL.
  */
 KUNIT_ASSERT_EQ(test, strnlen(coeff->name, sizeof(coeff->name)),
   sizeof(coeff->name));

 /*
  * V1 controls do not have names, but cs_dsp parses the name
  * field. It should load the file successfully and create the
  * control.
  * If FORTIFY_STRING is enabled it will detect a buffer overflow
  * if cs_dsp string length walks past end of coeff name array.
  */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   0);
 ctl = list_first_entry_or_null(&priv->dsp->ctl_list, struct cs_dsp_coeff_ctl, list);
 KUNIT_ASSERT_NOT_NULL(test, ctl);
 KUNIT_EXPECT_EQ(test, ctl->subname_len, 0);
}

/* V2+ coefficient shortname exceeds length of coeff block */
static void wmfw_v2_coeff_shortname_exceeds_block(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;
 struct wmfw_region *region;
 __le32 *alg_data, *coeff;

 /* Create alg info block with a coefficient */
 cs_dsp_mock_wmfw_start_alg_info_block(local->wmfw_builder,
           cs_dsp_wmfw_err_test_mock_algs[0].id,
           "abc", "de");
 cs_dsp_mock_wmfw_add_coeff_desc(local->wmfw_builder, &mock_coeff_template);
 cs_dsp_mock_wmfw_end_alg_info_block(local->wmfw_builder);

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 header = (struct wmfw_header *)wmfw->data;
 region = (struct wmfw_region *)&wmfw->data[le32_to_cpu(header->len)];
 alg_data = (__force __le32 *)region->data;

 /* Sanity check we're pointing at the alg header */
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data[0]), cs_dsp_wmfw_err_test_mock_algs[0].id);

 /* Sanity check we're pointing at the coeff block */
 coeff = (__force __le32 *)&alg_data[4];
 KUNIT_ASSERT_EQ(test, le32_to_cpu(coeff[0]), mock_coeff_template.mem_type << 16);

 /* Add one to the shortname length */
 coeff[2] = cpu_to_le32(le32_to_cpu(coeff[2]) + 1);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 /* Maximum shortname length */
 coeff[2] = cpu_to_le32(255);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);
}

/* V2+ coefficient fullname exceeds length of coeff block */
static void wmfw_v2_coeff_fullname_exceeds_block(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;
 struct wmfw_region *region;
 __le32 *alg_data, *coeff, *fullname;
 size_t shortlen;

 /* Create alg info block with a coefficient */
 cs_dsp_mock_wmfw_start_alg_info_block(local->wmfw_builder,
           cs_dsp_wmfw_err_test_mock_algs[0].id,
           "abc", "de");
 cs_dsp_mock_wmfw_add_coeff_desc(local->wmfw_builder, &mock_coeff_template);
 cs_dsp_mock_wmfw_end_alg_info_block(local->wmfw_builder);

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 header = (struct wmfw_header *)wmfw->data;
 region = (struct wmfw_region *)&wmfw->data[le32_to_cpu(header->len)];
 alg_data = (__force __le32 *)region->data;

 /* Sanity check we're pointing at the alg header */
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data[0]), cs_dsp_wmfw_err_test_mock_algs[0].id);

 /* Sanity check we're pointing at the coeff block */
 coeff = (__force __le32 *)&alg_data[4];
 KUNIT_ASSERT_EQ(test, le32_to_cpu(coeff[0]), mock_coeff_template.mem_type << 16);

 /* Fullname follows the shortname rounded up to a __le32 boundary */
 shortlen = round_up(le32_to_cpu(coeff[2]) & 0xff, sizeof(__le32));
 fullname = &coeff[2] + (shortlen / sizeof(*coeff));

 /* Fullname increases in blocks of __le32 so increase past the current __le32 */
 fullname[0] = cpu_to_le32(round_up(le32_to_cpu(fullname[0]) + 1, sizeof(__le32)));
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 /* Maximum fullname length */
 fullname[0] = cpu_to_le32(255);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);
}

/* V2+ coefficient description exceeds length of coeff block */
static void wmfw_v2_coeff_description_exceeds_block(struct kunit *test)
{
 struct cs_dsp_test *priv = test->priv;
 struct cs_dsp_test_local *local = priv->local;
 struct firmware *wmfw;
 struct wmfw_header *header;
 struct wmfw_region *region;
 __le32 *alg_data, *coeff, *fullname, *description;
 size_t namelen;

 /* Create alg info block with a coefficient */
 cs_dsp_mock_wmfw_start_alg_info_block(local->wmfw_builder,
           cs_dsp_wmfw_err_test_mock_algs[0].id,
           "abc", "de");
 cs_dsp_mock_wmfw_add_coeff_desc(local->wmfw_builder, &mock_coeff_template);
 cs_dsp_mock_wmfw_end_alg_info_block(local->wmfw_builder);

 wmfw = cs_dsp_mock_wmfw_get_firmware(local->wmfw_builder);

 /* Sanity-check that the good wmfw loads ok */
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "wmfw", NULL, NULL, "misc"),
   0);
 cs_dsp_power_down(priv->dsp);

 header = (struct wmfw_header *)wmfw->data;
 region = (struct wmfw_region *)&wmfw->data[le32_to_cpu(header->len)];
 alg_data = (__force __le32 *)region->data;

 /* Sanity check we're pointing at the alg header */
 KUNIT_ASSERT_EQ(test, le32_to_cpu(alg_data[0]), cs_dsp_wmfw_err_test_mock_algs[0].id);

 /* Sanity check we're pointing at the coeff block */
 coeff = (__force __le32 *)&alg_data[4];
 KUNIT_ASSERT_EQ(test, le32_to_cpu(coeff[0]), mock_coeff_template.mem_type << 16);

 /* Description follows the shortname and fullname rounded up to __le32 boundaries */
 namelen = round_up(le32_to_cpu(coeff[2]) & 0xff, sizeof(__le32));
 fullname = &coeff[2] + (namelen / sizeof(*coeff));
 namelen = round_up(le32_to_cpu(fullname[0]) & 0xff, sizeof(__le32));
 description = fullname + (namelen / sizeof(*fullname));

 /* Description increases in blocks of __le32 so increase past the current __le32 */
 description[0] = cpu_to_le32(round_up(le32_to_cpu(fullname[0]) + 1, sizeof(__le32)));
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);

 /* Maximum description length */
 fullname[0] = cpu_to_le32(0xffff);
 KUNIT_EXPECT_EQ(test,
   cs_dsp_power_up(priv->dsp, wmfw, "mock_wmfw", NULL, NULL, "misc"),
   -EOVERFLOW);
}

static void cs_dsp_wmfw_err_test_exit(struct kunit *test)
{
 /*
  * Testing error conditions can produce a lot of log output
  * from cs_dsp error messages, so rate limit the test cases.
  */
 usleep_range(200, 500);
}

static int cs_dsp_wmfw_err_test_common_init(struct kunit *test, struct cs_dsp *dsp,
         int wmfw_version)
{
 struct cs_dsp_test *priv;
 struct cs_dsp_test_local *local;
 struct device *test_dev;
 int ret;

 priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);
 if (!priv)
  return -ENOMEM;

 local = kunit_kzalloc(test, sizeof(struct cs_dsp_test_local), GFP_KERNEL);
 if (!local)
  return -ENOMEM;

 priv->test = test;
 priv->dsp = dsp;
 test->priv = priv;
 priv->local = local;
 local->wmfw_version = wmfw_version;

 /* Create dummy struct device */
 test_dev = kunit_device_register(test, "cs_dsp_test_drv");
 if (IS_ERR(test_dev))
  return PTR_ERR(test_dev);

 dsp->dev = get_device(test_dev);
 if (!dsp->dev)
  return -ENODEV;

 ret = kunit_add_action_or_reset(test, _put_device_wrapper, dsp->dev);
 if (ret)
  return ret;

 dev_set_drvdata(dsp->dev, priv);

 /* Allocate regmap */
 ret = cs_dsp_mock_regmap_init(priv);
 if (ret)
  return ret;

 /*
  * There must always be a XM header with at least 1 algorithm,
  * so create a dummy one and pre-populate XM so the wmfw doesn't
  * have to contain an XM blob.
  */
 local->xm_header = cs_dsp_create_mock_xm_header(priv,
       cs_dsp_wmfw_err_test_mock_algs,
       ARRAY_SIZE(cs_dsp_wmfw_err_test_mock_algs));
 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, local->xm_header);
 cs_dsp_mock_xm_header_write_to_regmap(local->xm_header);

 local->wmfw_builder = cs_dsp_mock_wmfw_init(priv, local->wmfw_version);
 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, local->wmfw_builder);

 /* Init cs_dsp */
 dsp->client_ops = kunit_kzalloc(test, sizeof(*dsp->client_ops), GFP_KERNEL);
 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dsp->client_ops);

 switch (dsp->type) {
 case WMFW_ADSP2:
  ret = cs_dsp_adsp2_init(dsp);
  break;
 case WMFW_HALO:
  ret = cs_dsp_halo_init(dsp);
  break;
 default:
  KUNIT_FAIL(test, "Untested DSP type %d\n", dsp->type);
  return -EINVAL;
 }

 if (ret)
  return ret;

 /* Automatically call cs_dsp_remove() when test case ends */
 return kunit_add_action_or_reset(priv->test, _cs_dsp_remove_wrapper, dsp);
}

static int cs_dsp_wmfw_err_test_halo_init(struct kunit *test)
{
 struct cs_dsp *dsp;

 /* Fill in cs_dsp and initialize */
 dsp = kunit_kzalloc(test, sizeof(*dsp), GFP_KERNEL);
 if (!dsp)
  return -ENOMEM;

 dsp->num = 1;
 dsp->type = WMFW_HALO;
 dsp->mem = cs_dsp_mock_halo_dsp1_regions;
 dsp->num_mems = cs_dsp_mock_count_regions(cs_dsp_mock_halo_dsp1_region_sizes);
 dsp->base = cs_dsp_mock_halo_core_base;
 dsp->base_sysinfo = cs_dsp_mock_halo_sysinfo_base;

 return cs_dsp_wmfw_err_test_common_init(test, dsp, 3);
}

static int cs_dsp_wmfw_err_test_adsp2_32bit_init(struct kunit *test, int wmfw_ver)
{
 struct cs_dsp *dsp;

 /* Fill in cs_dsp and initialize */
 dsp = kunit_kzalloc(test, sizeof(*dsp), GFP_KERNEL);
 if (!dsp)
  return -ENOMEM;

 dsp->num = 1;
 dsp->type = WMFW_ADSP2;
 dsp->rev = 1;
 dsp->mem = cs_dsp_mock_adsp2_32bit_dsp1_regions;
 dsp->num_mems = cs_dsp_mock_count_regions(cs_dsp_mock_adsp2_32bit_dsp1_region_sizes);
 dsp->base = cs_dsp_mock_adsp2_32bit_sysbase;

 return cs_dsp_wmfw_err_test_common_init(test, dsp, wmfw_ver);
}

static int cs_dsp_wmfw_err_test_adsp2_32bit_wmfw0_init(struct kunit *test)
{
 return cs_dsp_wmfw_err_test_adsp2_32bit_init(test, 0);
}

static int cs_dsp_wmfw_err_test_adsp2_32bit_wmfw1_init(struct kunit *test)
{
 return cs_dsp_wmfw_err_test_adsp2_32bit_init(test, 1);
}

static int cs_dsp_wmfw_err_test_adsp2_32bit_wmfw2_init(struct kunit *test)
{
 return cs_dsp_wmfw_err_test_adsp2_32bit_init(test, 2);
}

static int cs_dsp_wmfw_err_test_adsp2_16bit_init(struct kunit *test, int wmfw_ver)
{
 struct cs_dsp *dsp;

 /* Fill in cs_dsp and initialize */
 dsp = kunit_kzalloc(test, sizeof(*dsp), GFP_KERNEL);
 if (!dsp)
  return -ENOMEM;

 dsp->num = 1;
 dsp->type = WMFW_ADSP2;
 dsp->rev = 0;
 dsp->mem = cs_dsp_mock_adsp2_16bit_dsp1_regions;
 dsp->num_mems = cs_dsp_mock_count_regions(cs_dsp_mock_adsp2_16bit_dsp1_region_sizes);
 dsp->base = cs_dsp_mock_adsp2_16bit_sysbase;

 return cs_dsp_wmfw_err_test_common_init(test, dsp, wmfw_ver);
}

static int cs_dsp_wmfw_err_test_adsp2_16bit_wmfw0_init(struct kunit *test)
{
 return cs_dsp_wmfw_err_test_adsp2_16bit_init(test, 0);
}

static int cs_dsp_wmfw_err_test_adsp2_16bit_wmfw1_init(struct kunit *test)
{
 return cs_dsp_wmfw_err_test_adsp2_16bit_init(test, 1);
}

static int cs_dsp_wmfw_err_test_adsp2_16bit_wmfw2_init(struct kunit *test)
{
 return cs_dsp_wmfw_err_test_adsp2_16bit_init(test, 2);
}

static void cs_dsp_wmfw_err_block_types_desc(const struct cs_dsp_wmfw_test_param *param,
          char *desc)
{
 snprintf(desc, KUNIT_PARAM_DESC_SIZE, "block_type:%#x", param->block_type);
}

static const struct cs_dsp_wmfw_test_param wmfw_valid_block_types_adsp2_cases[] = {
 { .block_type = WMFW_INFO_TEXT },
 { .block_type = WMFW_ADSP2_PM },
 { .block_type = WMFW_ADSP2_YM },
};

KUNIT_ARRAY_PARAM(wmfw_valid_block_types_adsp2,
    wmfw_valid_block_types_adsp2_cases,
    cs_dsp_wmfw_err_block_types_desc);

static const struct cs_dsp_wmfw_test_param wmfw_valid_block_types_halo_cases[] = {
 { .block_type = WMFW_INFO_TEXT },
 { .block_type = WMFW_HALO_PM_PACKED },
 { .block_type = WMFW_ADSP2_YM },
};

KUNIT_ARRAY_PARAM(wmfw_valid_block_types_halo,
    wmfw_valid_block_types_halo_cases,
    cs_dsp_wmfw_err_block_types_desc);

static const struct cs_dsp_wmfw_test_param wmfw_invalid_block_types_cases[] = {
 { .block_type = 0x33 },
 { .block_type = 0xf5 },
 { .block_type = 0xc0 },
};

KUNIT_ARRAY_PARAM(wmfw_invalid_block_types,
    wmfw_invalid_block_types_cases,
    cs_dsp_wmfw_err_block_types_desc);

static struct kunit_case cs_dsp_wmfw_err_test_cases_v0[] = {
 KUNIT_CASE(wmfw_load_with_unknown_blocks),
 KUNIT_CASE(wmfw_err_wrong_magic),
 KUNIT_CASE(wmfw_err_too_short_for_header),
 KUNIT_CASE(wmfw_err_bad_header_length),
 KUNIT_CASE(wmfw_err_bad_core_type),

 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_valid_block_types_adsp2_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_invalid_block_types_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_payload, wmfw_valid_block_types_adsp2_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_invalid_block_types_gen_params),
 KUNIT_CASE_PARAM(wmfw_block_payload_len_garbage, wmfw_valid_block_types_adsp2_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_invalid_block_types_gen_params),

 { } /* terminator */
};

static struct kunit_case cs_dsp_wmfw_err_test_cases_v1[] = {
 KUNIT_CASE(wmfw_load_with_unknown_blocks),
 KUNIT_CASE(wmfw_err_wrong_magic),
 KUNIT_CASE(wmfw_err_too_short_for_header),
 KUNIT_CASE(wmfw_err_bad_header_length),
 KUNIT_CASE(wmfw_err_bad_core_type),

 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_valid_block_types_adsp2_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_invalid_block_types_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_payload, wmfw_valid_block_types_adsp2_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_invalid_block_types_gen_params),
 KUNIT_CASE_PARAM(wmfw_block_payload_len_garbage, wmfw_valid_block_types_adsp2_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_invalid_block_types_gen_params),

 KUNIT_CASE(wmfw_too_short_for_alg_header),
 KUNIT_CASE(wmfw_v1_alg_name_unterminated),
 KUNIT_CASE(wmfw_v1_coeff_count_exceeds_block),
 KUNIT_CASE(wmfw_v1_coeff_name_unterminated),

 { } /* terminator */
};

static struct kunit_case cs_dsp_wmfw_err_test_cases_v2[] = {
 KUNIT_CASE(wmfw_load_with_unknown_blocks),
 KUNIT_CASE(wmfw_err_wrong_magic),
 KUNIT_CASE(wmfw_err_too_short_for_header),
 KUNIT_CASE(wmfw_err_bad_header_length),
 KUNIT_CASE(wmfw_err_bad_core_type),

 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_valid_block_types_adsp2_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_invalid_block_types_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_payload, wmfw_valid_block_types_adsp2_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_invalid_block_types_gen_params),
 KUNIT_CASE_PARAM(wmfw_block_payload_len_garbage, wmfw_valid_block_types_adsp2_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_invalid_block_types_gen_params),

 KUNIT_CASE(wmfw_too_short_for_alg_header),
 KUNIT_CASE(wmfw_v2_alg_name_exceeds_block),
 KUNIT_CASE(wmfw_v2_alg_description_exceeds_block),
 KUNIT_CASE(wmfw_v2_coeff_count_exceeds_block),
 KUNIT_CASE(wmfw_v2_coeff_block_size_exceeds_block),
 KUNIT_CASE(wmfw_v2_coeff_shortname_exceeds_block),
 KUNIT_CASE(wmfw_v2_coeff_fullname_exceeds_block),
 KUNIT_CASE(wmfw_v2_coeff_description_exceeds_block),

 { } /* terminator */
};

static struct kunit_case cs_dsp_wmfw_err_test_cases_v3[] = {
 KUNIT_CASE(wmfw_load_with_unknown_blocks),
 KUNIT_CASE(wmfw_err_wrong_magic),
 KUNIT_CASE(wmfw_err_too_short_for_header),
 KUNIT_CASE(wmfw_err_bad_header_length),
 KUNIT_CASE(wmfw_err_bad_core_type),

 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_valid_block_types_halo_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_invalid_block_types_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_payload, wmfw_valid_block_types_halo_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_invalid_block_types_gen_params),
 KUNIT_CASE_PARAM(wmfw_block_payload_len_garbage, wmfw_valid_block_types_halo_gen_params),
 KUNIT_CASE_PARAM(wmfw_too_short_for_block_header, wmfw_invalid_block_types_gen_params),

 KUNIT_CASE(wmfw_too_short_for_alg_header),
 KUNIT_CASE(wmfw_v2_alg_name_exceeds_block),
 KUNIT_CASE(wmfw_v2_alg_description_exceeds_block),
 KUNIT_CASE(wmfw_v2_coeff_count_exceeds_block),
 KUNIT_CASE(wmfw_v2_coeff_block_size_exceeds_block),
 KUNIT_CASE(wmfw_v2_coeff_shortname_exceeds_block),
 KUNIT_CASE(wmfw_v2_coeff_fullname_exceeds_block),
 KUNIT_CASE(wmfw_v2_coeff_description_exceeds_block),

 { } /* terminator */
};

static struct kunit_suite cs_dsp_wmfw_err_test_halo = {
 .name = "cs_dsp_wmfwV3_err_halo",
 .init = cs_dsp_wmfw_err_test_halo_init,
 .exit = cs_dsp_wmfw_err_test_exit,
 .test_cases = cs_dsp_wmfw_err_test_cases_v3,
};

static struct kunit_suite cs_dsp_wmfw_err_test_adsp2_32bit_wmfw0 = {
 .name = "cs_dsp_wmfwV0_err_adsp2_32bit",
 .init = cs_dsp_wmfw_err_test_adsp2_32bit_wmfw0_init,
 .exit = cs_dsp_wmfw_err_test_exit,
 .test_cases = cs_dsp_wmfw_err_test_cases_v0,
};

static struct kunit_suite cs_dsp_wmfw_err_test_adsp2_32bit_wmfw1 = {
 .name = "cs_dsp_wmfwV1_err_adsp2_32bit",
 .init = cs_dsp_wmfw_err_test_adsp2_32bit_wmfw1_init,
 .exit = cs_dsp_wmfw_err_test_exit,
 .test_cases = cs_dsp_wmfw_err_test_cases_v1,
};

static struct kunit_suite cs_dsp_wmfw_err_test_adsp2_32bit_wmfw2 = {
 .name = "cs_dsp_wmfwV2_err_adsp2_32bit",
 .init = cs_dsp_wmfw_err_test_adsp2_32bit_wmfw2_init,
 .exit = cs_dsp_wmfw_err_test_exit,
 .test_cases = cs_dsp_wmfw_err_test_cases_v2,
};

static struct kunit_suite cs_dsp_wmfw_err_test_adsp2_16bit_wmfw0 = {
 .name = "cs_dsp_wmfwV0_err_adsp2_16bit",
 .init = cs_dsp_wmfw_err_test_adsp2_16bit_wmfw0_init,
 .exit = cs_dsp_wmfw_err_test_exit,
 .test_cases = cs_dsp_wmfw_err_test_cases_v0,
};

static struct kunit_suite cs_dsp_wmfw_err_test_adsp2_16bit_wmfw1 = {
 .name = "cs_dsp_wmfwV1_err_adsp2_16bit",
 .init = cs_dsp_wmfw_err_test_adsp2_16bit_wmfw1_init,
 .exit = cs_dsp_wmfw_err_test_exit,
 .test_cases = cs_dsp_wmfw_err_test_cases_v1,
};

static struct kunit_suite cs_dsp_wmfw_err_test_adsp2_16bit_wmfw2 = {
 .name = "cs_dsp_wmfwV2_err_adsp2_16bit",
 .init = cs_dsp_wmfw_err_test_adsp2_16bit_wmfw2_init,
 .exit = cs_dsp_wmfw_err_test_exit,
 .test_cases = cs_dsp_wmfw_err_test_cases_v2,
};

kunit_test_suites(&cs_dsp_wmfw_err_test_halo,
    &cs_dsp_wmfw_err_test_adsp2_32bit_wmfw0,
    &cs_dsp_wmfw_err_test_adsp2_32bit_wmfw1,
    &cs_dsp_wmfw_err_test_adsp2_32bit_wmfw2,
    &cs_dsp_wmfw_err_test_adsp2_16bit_wmfw0,
    &cs_dsp_wmfw_err_test_adsp2_16bit_wmfw1,
    &cs_dsp_wmfw_err_test_adsp2_16bit_wmfw2);