1 // SPDX-License-Identifier: Apache-2.0
2 // Copyright (C) 2018 IBM Corp.
3
4 #include <assert.h>
5 #include <string.h>
6
7 #include "config.h"
8 #include "mboxd_msg.h"
9 #include "vpnor/mboxd_pnor_partition_table.h"
10
11 extern "C" {
12 #include "test/mbox.h"
13 #include "test/system.h"
14 }
15
16 #include "vpnor/test/tmpd.hpp"
17
18 struct test_context
19 {
20 uint8_t seq;
21 struct mbox_context *ctx;
22 };
23
24 // Configure the system and the paritions such that we eventually request a
25 // window that covers the last section of flash, but the remaining flash is
26 // smaller than the window size
27 static constexpr auto BLOCK_SIZE = 4096;
28 static constexpr auto ERASE_SIZE = BLOCK_SIZE;
29 static constexpr auto N_WINDOWS = 3;
30 static constexpr auto WINDOW_SIZE = 2 * BLOCK_SIZE;
31 static constexpr auto MEM_SIZE = N_WINDOWS * WINDOW_SIZE;
32 static constexpr auto PNOR_SIZE = (4 * BLOCK_SIZE);
33
34 const std::string toc[] = {
35 "partition01=ONE,00001000,00003000,80,ECC,READONLY",
36 };
37
38 static const uint8_t get_info[] = {0x02, 0x00, 0x02, 0x00, 0x00, 0x00,
39 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
40 0x00, 0x00, 0x00, 0x00};
41
42 static constexpr auto MBOX_CREATE_READ_WINDOW = 4;
43
mbox_create_read_window(struct test_context * tctx,size_t offset,size_t len)44 static int mbox_create_read_window(struct test_context *tctx, size_t offset,
45 size_t len)
46 {
47 union mbox_regs regs;
48
49 memset(®s, 0, sizeof(regs));
50 regs.msg.command = MBOX_CREATE_READ_WINDOW;
51 regs.msg.seq = ++tctx->seq;
52 put_u16(®s.msg.args[0], offset);
53 put_u16(®s.msg.args[2], len);
54
55 return mbox_command_dispatch(tctx->ctx, regs.raw, sizeof(regs.raw));
56 }
57
main()58 int main()
59 {
60 namespace test = openpower::virtual_pnor::test;
61
62 struct test_context _tctx = {0}, *tctx = &_tctx;
63 size_t len;
64 size_t pos;
65 int rc;
66
67 system_set_reserved_size(MEM_SIZE);
68 system_set_mtd_sizes(PNOR_SIZE, ERASE_SIZE);
69
70 tctx->ctx = mbox_create_test_context(N_WINDOWS, WINDOW_SIZE);
71 test::VpnorRoot root(tctx->ctx, toc, BLOCK_SIZE);
72 init_vpnor_from_paths(tctx->ctx);
73
74 rc = mbox_command_dispatch(tctx->ctx, get_info, sizeof(get_info));
75 assert(rc == 1);
76
77 pos = 0;
78 while (pos < (PNOR_SIZE / BLOCK_SIZE))
79 {
80 struct mbox_msg _msg, *msg = &_msg;
81
82 rc = mbox_create_read_window(tctx, pos, (WINDOW_SIZE / BLOCK_SIZE));
83 assert(rc == 1);
84
85 mbox_rspcpy(tctx->ctx, msg);
86
87 len = get_u16(&msg->args[2]);
88 pos = get_u16(&msg->args[4]) + len;
89 }
90
91 return 0;
92 }
93