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1 /*
2 * QTest testcase for K230 GSDMA
3 *
4 * Copyright (c) 2026 Tao Ding <dingtao0430@163.com>
5 *
6 * SPDX-License-Identifier: GPL-2.0-or-later
7 */
8
9 #include "qemu/osdep.h"
10 #include "qemu/bitops.h"
11 #include "exec/hwaddr.h"
12 #include "hw/dma/k230_gsdma.h"
13 #include "libqtest.h"
14
15 #define K230_GSDMA_BASE 0x80800000
16 #define TEST_LLT_ADDR0 0x10000
17 #define TEST_LLT_ADDR1 0x10040
18 #define TEST_LLT_ADDR2 0x10080
19
20 #define TEST_SRC_ADDR0 0x20000
21 #define TEST_SRC_ADDR1 0x22000
22 #define TEST_SRC_ADDR2 0x23000
23 #define TEST_DST_ADDR0 0x30000
24 #define TEST_DST_ADDR1 0x32000
25 #define TEST_DST_ADDR2 0x33000
26
27 static inline uint64_t gsdma_reg(hwaddr off)
28 {
29 return K230_GSDMA_BASE + off;
30 }
31
32 static inline uint64_t gsdma_ch_reg(unsigned int ch, hwaddr off)
33 {
34 return K230_GSDMA_BASE + K230_GSDMA_CH_BASE +
35 ch * K230_GSDMA_CH_STRIDE + off;
36 }
37
38 static void write_sdma_llt_node_full(QTestState *qts, hwaddr addr,
39 uint32_t cfg, hwaddr src,
40 uint32_t size, hwaddr dst,
41 hwaddr next)
42 {
43 qtest_writel(qts, addr + offsetof(K230GSDMALLT, cfg), cfg);
44 qtest_writel(qts, addr + offsetof(K230GSDMALLT, src_addr), src);
45 qtest_writel(qts, addr + offsetof(K230GSDMALLT, line_size), size);
46 qtest_writel(qts, addr + offsetof(K230GSDMALLT, line_cfg), 0x1);
47 qtest_writel(qts, addr + offsetof(K230GSDMALLT, dst_addr), dst);
48 qtest_writel(qts, addr + offsetof(K230GSDMALLT, next_llt_addr), next);
49 }
50
51 static void write_sdma_llt_node(QTestState *qts, hwaddr addr, uint32_t cfg,
52 uint32_t next)
53 {
54 write_sdma_llt_node_full(qts, addr, cfg, 0x11110000, 0x200,
55 0x22220000, next);
56 }
57
58 static void fill_pattern(uint8_t *buf, size_t size, uint8_t seed)
59 {
60 for (size_t i = 0; i < size; i++) {
61 buf[i] = seed + i * 37;
62 }
63 }
64
65 static void test_global_registers(void)
66 {
67 QTestState *qts = qtest_init("-machine k230");
68
69 g_assert_cmphex(qtest_readl(qts, gsdma_reg(K230_GSDMA_DMA_CFG)), ==,
70 K230_GSDMA_DMA_CFG_RESET);
71
72 qtest_writel(qts, gsdma_reg(K230_GSDMA_DMA_CH_EN), 0xff);
73 g_assert_cmphex(qtest_readl(qts, gsdma_reg(K230_GSDMA_DMA_CH_EN)), ==,
74 K230_GSDMA_DMA_CH_EN_MASK);
75
76 qtest_writel(qts, gsdma_reg(K230_GSDMA_DMA_INT_MASK), 0x12345);
77 g_assert_cmphex(qtest_readl(qts, gsdma_reg(K230_GSDMA_DMA_INT_MASK)), ==,
78 0x12345);
79
80 qtest_writel(qts, gsdma_reg(K230_GSDMA_DMA_CFG), 0xa5a5a5a5);
81 g_assert_cmphex(qtest_readl(qts, gsdma_reg(K230_GSDMA_DMA_CFG)), ==,
82 0xa5a5a5a5);
83
84 qtest_writel(qts, gsdma_reg(K230_GSDMA_DMA_WEIGHT), 0xff55aa55);
85 g_assert_cmphex(qtest_readl(qts, gsdma_reg(K230_GSDMA_DMA_WEIGHT)), ==,
86 0x55aa55);
87
88 qtest_quit(qts);
89 }
90
91 static void test_sdma_pause_resume(void)
92 {
93 uint32_t int_stat;
94 QTestState *qts = qtest_init("-machine k230");
95
96 write_sdma_llt_node(qts, TEST_LLT_ADDR0, K230_GSDMA_LLT_PAUSE,
97 TEST_LLT_ADDR1);
98 write_sdma_llt_node(qts, TEST_LLT_ADDR1, K230_GSDMA_LLT_NODE_INTR, 0);
99
100 qtest_writel(qts, gsdma_reg(K230_GSDMA_DMA_CH_EN), BIT(0));
101 qtest_writel(qts, gsdma_ch_reg(0, K230_GSDMA_CH_LLT_SADDR), TEST_LLT_ADDR0);
102 qtest_writel(qts, gsdma_ch_reg(0, K230_GSDMA_CH_CTL), K230_GSDMA_CTL_START);
103
104 g_assert_cmphex(qtest_readl(qts, gsdma_ch_reg(0, K230_GSDMA_CH_STATUS)), ==,
105 K230_GSDMA_SDMA_STATUS_PAUSE);
106 g_assert_cmphex(qtest_readl(qts, gsdma_ch_reg(0, K230_GSDMA_CH_CURRENT_LLT)),
107 ==, TEST_LLT_ADDR0);
108
109 int_stat = qtest_readl(qts, gsdma_reg(K230_GSDMA_DMA_INT_STAT));
110 g_assert_cmphex(int_stat & K230_GSDMA_SDMA_PAUSE_INT(0), ==,
111 K230_GSDMA_SDMA_PAUSE_INT(0));
112 g_assert_cmphex(int_stat & K230_GSDMA_SDMA_DONE_INT(0), ==, 0);
113
114 qtest_writel(qts, gsdma_reg(K230_GSDMA_DMA_INT_STAT), int_stat);
115 qtest_writel(qts, gsdma_ch_reg(0, K230_GSDMA_CH_CTL), K230_GSDMA_CTL_RESUME);
116
117 g_assert_cmphex(qtest_readl(qts, gsdma_ch_reg(0, K230_GSDMA_CH_STATUS)), ==,
118 0);
119 g_assert_cmphex(qtest_readl(qts, gsdma_ch_reg(0, K230_GSDMA_CH_CURRENT_LLT)),
120 ==, TEST_LLT_ADDR1);
121
122 int_stat = qtest_readl(qts, gsdma_reg(K230_GSDMA_DMA_INT_STAT));
123 g_assert_cmphex(int_stat & K230_GSDMA_SDMA_DONE_INT(0), ==,
124 K230_GSDMA_SDMA_DONE_INT(0));
125 g_assert_cmphex(int_stat & K230_GSDMA_SDMA_ITEM_INT(0), ==,
126 K230_GSDMA_SDMA_ITEM_INT(0));
127
128 qtest_quit(qts);
129 }
130
131 static void test_sdma_three_llt_copy(void)
132 {
133 uint8_t src0[0x1000];
134 uint8_t src1[1];
135 uint8_t src2[511];
136 uint8_t dst0[sizeof(src0)];
137 uint8_t dst1[sizeof(src1)];
138 uint8_t dst2[sizeof(src2)];
139 uint32_t int_stat;
140 QTestState *qts = qtest_init("-machine k230");
141
142 fill_pattern(src0, sizeof(src0), 0x10);
143 fill_pattern(src1, sizeof(src1), 0x31);
144 fill_pattern(src2, sizeof(src2), 0x52);
145 memset(dst0, 0xa5, sizeof(dst0));
146 memset(dst1, 0xa5, sizeof(dst1));
147 memset(dst2, 0xa5, sizeof(dst2));
148
149 qtest_memwrite(qts, TEST_SRC_ADDR0, src0, sizeof(src0));
150 qtest_memwrite(qts, TEST_SRC_ADDR1, src1, sizeof(src1));
151 qtest_memwrite(qts, TEST_SRC_ADDR2, src2, sizeof(src2));
152 qtest_memwrite(qts, TEST_DST_ADDR0, dst0, sizeof(dst0));
153 qtest_memwrite(qts, TEST_DST_ADDR1, dst1, sizeof(dst1));
154 qtest_memwrite(qts, TEST_DST_ADDR2, dst2, sizeof(dst2));
155
156 write_sdma_llt_node_full(qts, TEST_LLT_ADDR0, 0, TEST_SRC_ADDR0,
157 sizeof(src0), TEST_DST_ADDR0, TEST_LLT_ADDR1);
158 write_sdma_llt_node_full(qts, TEST_LLT_ADDR1, 0, TEST_SRC_ADDR1,
159 sizeof(src1), TEST_DST_ADDR1, TEST_LLT_ADDR2);
160 write_sdma_llt_node_full(qts, TEST_LLT_ADDR2, 0, TEST_SRC_ADDR2,
161 sizeof(src2), TEST_DST_ADDR2, 0);
162
163 qtest_writel(qts, gsdma_reg(K230_GSDMA_DMA_CH_EN), BIT(0));
164 qtest_writel(qts, gsdma_ch_reg(0, K230_GSDMA_CH_LLT_SADDR), TEST_LLT_ADDR0);
165 qtest_writel(qts, gsdma_ch_reg(0, K230_GSDMA_CH_CTL), K230_GSDMA_CTL_START);
166
167 g_assert_cmphex(qtest_readl(qts, gsdma_ch_reg(0, K230_GSDMA_CH_STATUS)), ==,
168 0);
169 g_assert_cmphex(qtest_readl(qts, gsdma_ch_reg(0, K230_GSDMA_CH_CURRENT_LLT)),
170 ==, TEST_LLT_ADDR2);
171
172 int_stat = qtest_readl(qts, gsdma_reg(K230_GSDMA_DMA_INT_STAT));
173 g_assert_cmphex(int_stat & K230_GSDMA_SDMA_DONE_INT(0), ==,
174 K230_GSDMA_SDMA_DONE_INT(0));
175 g_assert_cmphex(int_stat & K230_GSDMA_SDMA_PAUSE_INT(0), ==, 0);
176
177 memset(dst0, 0, sizeof(dst0));
178 memset(dst1, 0, sizeof(dst1));
179 memset(dst2, 0, sizeof(dst2));
180 qtest_memread(qts, TEST_DST_ADDR0, dst0, sizeof(dst0));
181 qtest_memread(qts, TEST_DST_ADDR1, dst1, sizeof(dst1));
182 qtest_memread(qts, TEST_DST_ADDR2, dst2, sizeof(dst2));
183
184 g_assert_cmpmem(dst0, sizeof(dst0), src0, sizeof(src0));
185 g_assert_cmpmem(dst1, sizeof(dst1), src1, sizeof(src1));
186 g_assert_cmpmem(dst2, sizeof(dst2), src2, sizeof(src2));
187
188 qtest_quit(qts);
189 }
190
191 int main(int argc, char **argv)
192 {
193 g_test_init(&argc, &argv, NULL);
194
195 qtest_add_func("/k230-gsdma/global-registers", test_global_registers);
196 qtest_add_func("/k230-gsdma/sdma-pause-resume", test_sdma_pause_resume);
197 qtest_add_func("/k230-gsdma/sdma-three-llt-copy",
198 test_sdma_three_llt_copy);
199
200 return g_test_run();
201 }