From 479d17588e73b42291e54999bf9777edca656e8c Mon Sep 17 00:00:00 2001 From: Cyril Bur Date: Thu, 6 Apr 2017 11:38:48 +1000 Subject: libflash: Add tests for blocklevel_smart_erase() Signed-off-by: Cyril Bur Signed-off-by: Stewart Smith --- libflash/test/test-blocklevel.c | 227 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 225 insertions(+), 2 deletions(-) (limited to 'libflash') diff --git a/libflash/test/test-blocklevel.c b/libflash/test/test-blocklevel.c index 2f0f77b..4dbbb09 100644 --- a/libflash/test/test-blocklevel.c +++ b/libflash/test/test-blocklevel.c @@ -1,4 +1,4 @@ -/* Copyright 2013-2014 IBM Corp. +/* Copyright 2013-2017 IBM Corp. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -27,9 +27,90 @@ #define ERR(fmt...) fprintf(stderr, fmt) -int main(void) +static int bl_test_bad_read(struct blocklevel_device *bl __unused, uint64_t pos __unused, + void *buf __unused, uint64_t len __unused) +{ + return FLASH_ERR_PARM_ERROR; +} + +static int bl_test_read(struct blocklevel_device *bl, uint64_t pos, void *buf, uint64_t len) +{ + if (pos + len > 0x1000) + return FLASH_ERR_PARM_ERROR; + + memcpy(buf, bl->priv + pos, len); + + return 0; +} + +static int bl_test_bad_write(struct blocklevel_device *bl __unused, uint64_t pos __unused, + const void *buf __unused, uint64_t len __unused) +{ + return FLASH_ERR_PARM_ERROR; +} + +static int bl_test_write(struct blocklevel_device *bl, uint64_t pos, const void *buf, uint64_t len) +{ + if (pos + len > 0x1000) + return FLASH_ERR_PARM_ERROR; + + memcpy(bl->priv + pos, buf, len); + + return 0; +} + +static int bl_test_erase(struct blocklevel_device *bl, uint64_t pos, uint64_t len) +{ + if (pos + len > 0x1000) + return FLASH_ERR_PARM_ERROR; + + memset(bl->priv + pos, 0xff, len); + + return 0; +} + + +static void dump_buf(uint8_t *buf, int start, int end, int miss) +{ + int i; + + printf("pos: value\n"); + for (i = start; i < end; i++) + printf("%04x: %c%s\n", i, buf[i] == 0xff ? '-' : buf[i], i == miss ? " <- First missmatch" : ""); +} + +/* + * Returns zero if the buffer is ok. Otherwise returns the position of + * the mismatch. If the mismatch is at zero -1 is returned + */ +static int check_buf(uint8_t *buf, int zero_start, int zero_end) +{ + int i; + + for (i = 0; i < 0x1000; i++) { + if (i >= zero_start && i < zero_end && buf[i] != 0xff) + return i == 0 ? -1 : i; + if ((i < zero_start || i >= zero_end) && buf[i] != (i % 26) + 'a') + return i == 0 ? -1 : i; + } + + return 0; +} + +static void reset_buf(uint8_t *buf) { int i; + + for (i = 0; i < 0x1000; i++) { + /* This gives repeating a - z which will be nice to visualise */ + buf[i] = (i % 26) + 'a'; + } +} + +int main(void) +{ + int i, miss; + char *buf; struct blocklevel_device bl_mem = { 0 }; struct blocklevel_device *bl = &bl_mem; @@ -208,6 +289,148 @@ int main(void) } } + /* + * Test blocklevel_smart_erase() + * Probably safe to zero the blocklevel we've got + */ + buf = malloc(0x1000); + if (!buf) { + ERR("Malloc failed\n"); + return 1; + } + memset(bl, 0, sizeof(*bl)); + bl_mem.read = &bl_test_read; + bl_mem.write = &bl_test_write; + bl_mem.erase = &bl_test_erase; + bl_mem.erase_mask = 0xff; + bl_mem.priv = buf; + reset_buf(buf); + + + /* + * Test 1: One full and exact erase block, this shouldn't call + * read or write, ensure this fails if it does. + */ + bl_mem.write = &bl_test_bad_write; + bl_mem.read = &bl_test_bad_read; + if (blocklevel_smart_erase(bl, 0x100, 0x100)) { + ERR("Failed to blocklevel_smart_erase(0x100, 0x100)\n"); + return 1; + } + miss = check_buf(buf, 0x100, 0x200); + if (miss) { + ERR("Buffer mismatch after blocklevel_smart_erase(0x100, 0x100) at 0x%0x\n", + miss == -1 ? 0 : miss); + dump_buf(buf, 0xfc, 0x105, miss == -1 ? 0 : miss); + dump_buf(buf, 0x1fc, 0x205, miss == -1 ? 0 : miss); + return 1; + } + bl_mem.read = &bl_test_read; + bl_mem.write = &bl_test_write; + + reset_buf(buf); + /* Test 2: Only touch one erase block */ + if (blocklevel_smart_erase(bl, 0x20, 0x40)) { + ERR("Failed to blocklevel_smart_erase(0x20, 0x40)\n"); + return 1; + } + miss = check_buf(buf, 0x20, 0x60); + if (miss) { + ERR("Buffer mismatch after blocklevel_smart_erase(0x20, 0x40) at 0x%x\n", + miss == -1 ? 0 : miss); + dump_buf(buf, 0x1c, 0x65, miss == -1 ? 0 : miss); + return 1; + } + + reset_buf(buf); + /* Test 3: Start aligned but finish somewhere in it */ + if (blocklevel_smart_erase(bl, 0x100, 0x50)) { + ERR("Failed to blocklevel_smart_erase(0x100, 0x50)\n"); + return 1; + } + miss = check_buf(buf, 0x100, 0x150); + if (miss) { + ERR("Buffer mismatch after blocklevel_smart_erase(0x100, 0x50) at 0x%0x\n", + miss == -1 ? 0 : miss); + dump_buf(buf, 0xfc, 0x105, miss == -1 ? 0 : miss); + dump_buf(buf, 0x14c, 0x155, miss == -1 ? 0 : miss); + return 1; + } + + reset_buf(buf); + /* Test 4: Start somewhere in it, finish aligned */ + if (blocklevel_smart_erase(bl, 0x50, 0xb0)) { + ERR("Failed to blocklevel_smart_erase(0x50, 0xb0)\n"); + return 1; + } + miss = check_buf(buf, 0x50, 0x100); + if (miss) { + ERR("Buffer mismatch after blocklevel_smart_erase(0x50, 0xb0) at 0x%x\n", + miss == -1 ? 0 : miss); + dump_buf(buf, 0x4c, 0x55, miss == -1 ? 0 : miss); + dump_buf(buf, 0x100, 0x105, miss == -1 ? 0 : miss); + return 1; + } + + reset_buf(buf); + /* Test 5: Cover two erase blocks exactly */ + if (blocklevel_smart_erase(bl, 0x100, 0x200)) { + ERR("Failed to blocklevel_smart_erase(0x100, 0x200)\n"); + return 1; + } + miss = check_buf(buf, 0x100, 0x300); + if (miss) { + ERR("Buffer mismatch after blocklevel_smart_erase(0x100, 0x200) at 0x%x\n", + miss == -1 ? 0 : miss); + dump_buf(buf, 0xfc, 0x105, miss == -1 ? 0 : miss); + dump_buf(buf, 0x2fc, 0x305, miss == -1 ? 0 : miss); + return 1; + } + + reset_buf(buf); + /* Test 6: Erase 1.5 blocks (start aligned) */ + if (blocklevel_smart_erase(bl, 0x100, 0x180)) { + ERR("Failed to blocklevel_smart_erase(0x100, 0x180)\n"); + return 1; + } + miss = check_buf(buf, 0x100, 0x280); + if (miss) { + ERR("Buffer mismatch after blocklevel_smart_erase(0x100, 0x180) at 0x%x\n", + miss == -1 ? 0 : miss); + dump_buf(buf, 0xfc, 0x105, miss == -1 ? 0 : miss); + dump_buf(buf, 0x27c, 0x285, miss == -1 ? 0 : miss); + return 1; + } + + reset_buf(buf); + /* Test 7: Erase 1.5 blocks (end aligned) */ + if (blocklevel_smart_erase(bl, 0x80, 0x180)) { + ERR("Failed to blocklevel_smart_erase(0x80, 0x180)\n"); + return 1; + } + miss = check_buf(buf, 0x80, 0x200); + if (miss) { + ERR("Buffer mismatch after blocklevel_smart_erase(0x80, 0x180) at 0x%x\n", + miss == -1 ? 0 : miss); + dump_buf(buf, 0x7c, 0x85, miss == -1 ? 0 : miss); + dump_buf(buf, 0x1fc, 0x205, miss == -1 ? 0 : miss); + return 1; + } + + reset_buf(buf); + /* Test 8: Erase a big section, not aligned */ + if (blocklevel_smart_erase(bl, 0x120, 0x544)) { + ERR("Failed to blocklevel_smart_erase(0x120, 0x544)\n"); + return 1; + } + miss = check_buf(buf, 0x120, 0x664); + if (miss) { + ERR("Buffer mismatch after blocklevel_smart_erase(0x120, 0x544) at 0x%x\n", + miss == -1 ? 0 : miss); + dump_buf(buf, 0x11c, 0x125, miss == -1 ? 0 : miss); + dump_buf(buf, 0x65f, 0x669, miss == -1 ? 0 : miss); + return 1; + } return 0; } -- cgit v1.1