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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2023 Addiva Elektronik
* Author: Tobias Waldekranz <tobias@waldekranz.com>
*/
#include <blk.h>
#include <blkmap.h>
#include <dm.h>
#include <asm/test.h>
#include <dm/test.h>
#include <test/test.h>
#include <test/ut.h>
#define BLKSZ 0x200
struct mapping {
int src;
int cnt;
int dst;
};
const struct mapping unordered_mapping[] = {
{ 0, 1, 3 },
{ 1, 3, 0 },
{ 4, 2, 6 },
{ 6, 2, 4 },
{ 0, 0, 0 }
};
const struct mapping identity_mapping[] = {
{ 0, 8, 0 },
{ 0, 0, 0 }
};
static char identity[8 * BLKSZ];
static char unordered[8 * BLKSZ];
static char buffer[8 * BLKSZ];
static void mkblob(void *base, const struct mapping *m)
{
int nr;
for (; m->cnt; m++) {
for (nr = 0; nr < m->cnt; nr++) {
memset(base + (m->dst + nr) * BLKSZ,
m->src + nr, BLKSZ);
}
}
}
static int dm_test_blkmap_read(struct unit_test_state *uts)
{
struct udevice *dev, *blk;
const struct mapping *m;
ut_assertok(blkmap_create("rdtest", &dev));
ut_assertok(blk_get_from_parent(dev, &blk));
/* Generate an ordered and an unordered pattern in memory */
mkblob(unordered, unordered_mapping);
mkblob(identity, identity_mapping);
/* Create a blkmap that cancels out the disorder */
for (m = unordered_mapping; m->cnt; m++) {
ut_assertok(blkmap_map_mem(dev, m->src, m->cnt,
unordered + m->dst * BLKSZ));
}
/* Read out the data via the blkmap device to another area,
* and verify that it matches the ordered pattern.
*/
ut_asserteq(8, blk_read(blk, 0, 8, buffer));
ut_assertok(memcmp(buffer, identity, sizeof(buffer)));
ut_assertok(blkmap_destroy(dev));
return 0;
}
DM_TEST(dm_test_blkmap_read, 0);
static int dm_test_blkmap_write(struct unit_test_state *uts)
{
struct udevice *dev, *blk;
const struct mapping *m;
ut_assertok(blkmap_create("wrtest", &dev));
ut_assertok(blk_get_from_parent(dev, &blk));
/* Generate an ordered and an unordered pattern in memory */
mkblob(unordered, unordered_mapping);
mkblob(identity, identity_mapping);
/* Create a blkmap that mimics the disorder */
for (m = unordered_mapping; m->cnt; m++) {
ut_assertok(blkmap_map_mem(dev, m->src, m->cnt,
buffer + m->dst * BLKSZ));
}
/* Write the ordered data via the blkmap device to another
* area, and verify that the result matches the unordered
* pattern.
*/
ut_asserteq(8, blk_write(blk, 0, 8, identity));
ut_assertok(memcmp(buffer, unordered, sizeof(buffer)));
ut_assertok(blkmap_destroy(dev));
return 0;
}
DM_TEST(dm_test_blkmap_write, 0);
static int dm_test_blkmap_slicing(struct unit_test_state *uts)
{
struct udevice *dev;
ut_assertok(blkmap_create("slicetest", &dev));
ut_assertok(blkmap_map_mem(dev, 8, 8, NULL));
/* Can't overlap on the low end */
ut_asserteq(-EBUSY, blkmap_map_mem(dev, 4, 5, NULL));
/* Can't be inside */
ut_asserteq(-EBUSY, blkmap_map_mem(dev, 10, 2, NULL));
/* Can't overlap on the high end */
ut_asserteq(-EBUSY, blkmap_map_mem(dev, 15, 4, NULL));
/* But we should be able to add slices right before and
* after
*/
ut_assertok(blkmap_map_mem(dev, 4, 4, NULL));
ut_assertok(blkmap_map_mem(dev, 16, 4, NULL));
ut_assertok(blkmap_destroy(dev));
return 0;
}
DM_TEST(dm_test_blkmap_slicing, 0);
static int dm_test_blkmap_creation(struct unit_test_state *uts)
{
struct udevice *first, *second;
ut_assertok(blkmap_create("first", &first));
/* Can't have two "first"s */
ut_asserteq(-EBUSY, blkmap_create("first", &second));
/* But "second" should be fine */
ut_assertok(blkmap_create("second", &second));
/* Once "first" is destroyed, we should be able to create it
* again
*/
ut_assertok(blkmap_destroy(first));
ut_assertok(blkmap_create("first", &first));
ut_assertok(blkmap_destroy(first));
ut_assertok(blkmap_destroy(second));
return 0;
}
DM_TEST(dm_test_blkmap_creation, 0);
static int dm_test_cmd_blkmap(struct unit_test_state *uts)
{
ulong loadaddr = env_get_hex("loadaddr", 0);
struct udevice *dev;
console_record_reset();
ut_assertok(run_command("blkmap info", 0));
ut_assert_console_end();
ut_assertok(run_command("blkmap create ramdisk", 0));
ut_assert_nextline("Created \"ramdisk\"");
ut_assert_console_end();
ut_assertnonnull((dev = blkmap_from_label("ramdisk")));
ut_assertok(run_commandf("blkmap map ramdisk 0 800 mem 0x%lx", loadaddr));
ut_assert_nextline("Block 0x0+0x800 mapped to 0x%lx", loadaddr);
ut_assert_console_end();
ut_assertok(run_command("blkmap info", 0));
ut_assert_nextline("Device 0: Vendor: U-Boot Rev: 1.0 Prod: blkmap");
ut_assert_nextline(" Type: Hard Disk");
ut_assert_nextline(" Capacity: 1.0 MB = 0.0 GB (2048 x 512)");
ut_assert_console_end();
ut_assertok(run_command("blkmap get ramdisk dev devnum", 0));
ut_asserteq(dev_seq(dev), env_get_hex("devnum", 0xdeadbeef));
ut_assertok(run_command("blkmap destroy ramdisk", 0));
ut_assert_nextline("Destroyed \"ramdisk\"");
ut_assert_console_end();
ut_assertok(run_command("blkmap info", 0));
ut_assert_console_end();
return 0;
}
DM_TEST(dm_test_cmd_blkmap, 0);
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