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[/] [or1k/] [branches/] [stable_0_2_x/] [or1ksim/] [testbench/] [cache.c] - Blame information for rev 631

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Line No. Rev Author Line
1 224 markom
/* Cache test */
2
#include "support.h"
3
#include "spr_defs.h"
4
 
5 424 markom
 
6 621 simons
#undef  UART
7
 
8
#define MEM_RAM 0x00100000
9
 
10 224 markom
/* Number of IC sets (power of 2) */
11 621 simons
#define IC_SETS 256
12
#define DC_SETS 256
13 224 markom
 
14
/* Block size in bytes (1, 2, 4, 8, 16, 32 etc.) */
15
#define IC_BLOCK_SIZE 16
16
#define DC_BLOCK_SIZE 16
17
 
18
/* Number of IC ways (1, 2, 3 etc.). */
19
#define IC_WAYS 1
20
#define DC_WAYS 1
21
 
22
/* Cache size */
23
#define IC_SIZE (IC_WAYS*IC_SETS*IC_BLOCK_SIZE)
24
#define DC_SIZE (DC_WAYS*DC_SETS*DC_BLOCK_SIZE)
25
 
26
/* Memory access macros */
27
#define REG8(add) *((volatile unsigned char *)(add))
28
#define REG16(add) *((volatile unsigned short *)(add))
29
#define REG32(add) *((volatile unsigned long *)(add))
30
 
31 621 simons
#if UART
32
#include "uart.h"
33
#define IN_CLK  20000000
34
#define UART_BASE  0x9c000000
35
#define UART_BAUD_RATE 9600
36
 
37
#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
38
 
39
#define WAIT_FOR_XMITR \
40
        do { \
41
                lsr = REG8(UART_BASE + UART_LSR); \
42
        } while ((lsr & BOTH_EMPTY) != BOTH_EMPTY)
43
 
44
#define WAIT_FOR_THRE \
45
        do { \
46
                lsr = REG8(UART_BASE + UART_LSR); \
47
        } while ((lsr & UART_LSR_THRE) != UART_LSR_THRE)
48
 
49
#define CHECK_FOR_CHAR \
50
        (REG8(UART_BASE + UART_LSR) & UART_LSR_DR)
51
 
52
#define WAIT_FOR_CHAR \
53
         do { \
54
                lsr = REG8(UART_BASE + UART_LSR); \
55
         } while ((lsr & UART_LSR_DR) != UART_LSR_DR)
56
 
57
#define UART_TX_BUFF_LEN 32
58
#define UART_TX_BUFF_MASK (UART_TX_BUFF_LEN -1)
59
 
60
#define print_n(x)  \
61
  { \
62
    uart_putc(s[((x) >> 28) & 0x0f]); \
63
    uart_putc(s[((x) >> 24) & 0x0f]); \
64
    uart_putc(s[((x) >> 20) & 0x0f]); \
65
    uart_putc(s[((x) >> 16) & 0x0f]); \
66
    uart_putc(s[((x) >> 12) & 0x0f]); \
67
    uart_putc(s[((x) >> 8) & 0x0f]);  \
68
    uart_putc(s[((x) >> 4) & 0x0f]);  \
69
    uart_putc(s[((x) >> 0) & 0x0f]);  \
70
  }
71
 
72
const char s[] = "0123456789abcdef";
73
 
74
void uart_init(void)
75
{
76
        int devisor;
77
 
78
        /* Reset receiver and transmiter */
79
        REG8(UART_BASE + UART_FCR) = UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT | UART_FCR_TRIGGER_14;
80
 
81
        /* Disable all interrupts */
82
        REG8(UART_BASE + UART_IER) = 0x00;
83
 
84
        /* Set 8 bit char, 1 stop bit, no parity */
85
        REG8(UART_BASE + UART_LCR) = UART_LCR_WLEN8 & ~(UART_LCR_STOP | UART_LCR_PARITY);
86
 
87
        /* Set baud rate */
88
        devisor = IN_CLK/(16 * UART_BAUD_RATE);
89
        REG8(UART_BASE + UART_LCR) |= UART_LCR_DLAB;
90
        REG8(UART_BASE + UART_DLL) = devisor & 0x000000ff;
91
        REG8(UART_BASE + UART_DLM) = (devisor >> 8) & 0x000000ff;
92
        REG8(UART_BASE + UART_LCR) &= ~(UART_LCR_DLAB);
93
 
94
        return;
95
}
96
 
97
static inline void uart_putc(char c)
98
{
99
        unsigned char lsr;
100
 
101
        WAIT_FOR_THRE;
102
        REG8(UART_BASE + UART_TX) = c;
103
        if(c == '\n') {
104
          WAIT_FOR_THRE;
105
          REG8(UART_BASE + UART_TX) = '\r';
106
        }
107
        WAIT_FOR_XMITR;
108
}
109
 
110
static inline void print_str(char *str)
111
{
112
  while(*str != 0) {
113
    uart_putc(*str);
114
    str++;
115
  }
116
}
117
 
118
static inline char uart_getc()
119
{
120
        unsigned char lsr;
121
        char c;
122
 
123
        WAIT_FOR_CHAR;
124
        c = REG8(UART_BASE + UART_RX);
125
        return c;
126
}
127
#endif
128
 
129
extern void ic_enable(void);
130
extern void ic_disable(void);
131
extern void dc_enable(void);
132
extern void dc_disable(void);
133
extern void dc_inv(void);
134
extern unsigned long ic_inv_test(void);
135
extern unsigned long dc_inv_test(unsigned long);
136
 
137 224 markom
extern void (*jalr)(void);
138
extern void (*jr)(void);
139
 
140 484 simons
/* Index on jump table */
141
unsigned long jump_indx;
142
 
143
/* Jump address table */
144
unsigned long jump_add[15*IC_WAYS];
145
 
146 224 markom
void dummy();
147
 
148
void jump_and_link(void)
149
{
150
        asm("_jalr:");
151 575 simons
  asm("l.jr\tr9");
152
  asm("l.nop");
153 224 markom
}
154
 
155
void jump(void)
156
{
157
        asm("_jr:");
158
        /* Read and increment index */
159 484 simons
        asm("l.lwz\t\tr3,0(r11)");
160 224 markom
        asm("l.addi\t\tr3,r3,4");
161 484 simons
        asm("l.sw\t\t0(r11),r3");
162 224 markom
        /* Load next executin address from table */
163
        asm("l.lwz\t\tr3,0(r3)");
164
        /* Jump to that address */
165
        asm("l.jr\t\tr3") ;
166
        /* Report that we succeeded */
167 621 simons
        asm("l.nop\t0");
168 224 markom
}
169
 
170
void copy_jr(unsigned long add)
171
{
172 322 simons
        memcpy((void *)add, (void *)&jr, 24);
173 224 markom
}
174
 
175
void call(unsigned long add)
176
{
177 484 simons
  asm("l.movhi\tr11,hi(_jump_indx)" : :);
178
  asm("l.ori\tr11,r11,lo(_jump_indx)" : :);
179 575 simons
        asm("l.jalr\t\t%0" : : "r" (add) : "r11", "r9");
180 224 markom
        asm("l.nop" : :);
181
}
182
 
183
int dc_test(void)
184
{
185
        int i;
186
        unsigned long base, add, ul;
187
 
188 484 simons
        base = (((unsigned long)MEM_RAM / (IC_SETS*IC_BLOCK_SIZE)) * IC_SETS*IC_BLOCK_SIZE) + IC_SETS*IC_BLOCK_SIZE;
189 224 markom
 
190 621 simons
        dc_enable();
191 224 markom
 
192
        /* Cache miss r */
193
        add = base;
194
        for(i = 0; i < DC_WAYS; i++) {
195
                ul = REG32(add);
196 621 simons
                ul = REG32(add + DC_BLOCK_SIZE + 4);
197
                ul = REG32(add + 2*DC_BLOCK_SIZE + 8);
198
                ul = REG32(add + 3*DC_BLOCK_SIZE + 12);
199 224 markom
                add += DC_SETS*DC_BLOCK_SIZE;
200
        }
201
 
202
        /* Cache hit w */
203
        add = base;
204
        for(i = 0; i < DC_WAYS; i++) {
205
                REG32(add + 0) = 0x00000001;
206 621 simons
                REG32(add + 4) = 0x00000000;
207
                REG32(add + 8) = 0x00000000;
208
                REG32(add + 12) = 0x00000000;
209
                REG32(add + DC_BLOCK_SIZE + 0) = 0x00000000;
210 224 markom
                REG32(add + DC_BLOCK_SIZE + 4) = 0x00000002;
211 621 simons
                REG32(add + DC_BLOCK_SIZE + 8) = 0x00000000;
212
                REG32(add + DC_BLOCK_SIZE + 12) = 0x00000000;
213
                REG32(add + 2*DC_BLOCK_SIZE + 0) = 0x00000000;
214
                REG32(add + 2*DC_BLOCK_SIZE + 4) = 0x00000000;
215 224 markom
                REG32(add + 2*DC_BLOCK_SIZE + 8) = 0x00000003;
216 621 simons
                REG32(add + 2*DC_BLOCK_SIZE + 12) = 0x00000000;
217
                REG32(add + 3*DC_BLOCK_SIZE + 0) = 0x00000000;
218
                REG32(add + 3*DC_BLOCK_SIZE + 4) = 0x00000000;
219
                REG32(add + 3*DC_BLOCK_SIZE + 8) = 0x00000000;
220 224 markom
                REG32(add + 3*DC_BLOCK_SIZE + 12) = 0x00000004;
221
                add += DC_SETS*DC_BLOCK_SIZE;
222
        }
223
 
224
        /* Cache hit r/w */
225
        add = base;
226
        for(i = 0; i < DC_WAYS; i++) {
227
                REG8(add + DC_BLOCK_SIZE - 4) = REG8(add + 3);
228
                REG8(add + 2*DC_BLOCK_SIZE - 8) = REG8(add + DC_BLOCK_SIZE + 7);
229
                REG8(add + 3*DC_BLOCK_SIZE - 12) = REG8(add + 2*DC_BLOCK_SIZE + 11);
230
                REG8(add + 4*DC_BLOCK_SIZE - 16) = REG8(add + 3*DC_BLOCK_SIZE + 15);
231
                add += DC_SETS*DC_BLOCK_SIZE;
232
        }
233
 
234
        /* Cache hit/miss r/w */
235
        add = base;
236
        for(i = 0; i < DC_WAYS; i++) {
237
                REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE) = REG16(add + DC_BLOCK_SIZE - 4) + REG16(add + 2);
238
                REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 2) = REG16(add + DC_BLOCK_SIZE - 8) + REG16(add + DC_BLOCK_SIZE + 6);
239
                REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 4) = REG16(add + DC_BLOCK_SIZE - 12) + REG16(add + 2*DC_BLOCK_SIZE + 10);
240
                REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 6) = REG16(add+ DC_BLOCK_SIZE - 16) + REG16(add + 2*DC_BLOCK_SIZE + 14);
241
                add += DC_SETS*DC_BLOCK_SIZE;
242
        }
243
 
244
        /* Fill cache with unused data */
245
        add = base + DC_WAYS*DC_SETS*DC_BLOCK_SIZE;
246
        for(i = 0; i < DC_WAYS; i++) {
247
                ul = REG32(add);
248
                ul = REG32(add + DC_BLOCK_SIZE);
249
                ul = REG32(add + 2*DC_BLOCK_SIZE);
250
                ul = REG32(add + 3*DC_BLOCK_SIZE);
251
                add += DC_SETS*DC_BLOCK_SIZE;
252
        }
253
 
254
        /* Cache hit/miss r */
255
        ul = 0;
256
        add = base;
257
        for(i = 0; i < DC_WAYS; i++) {
258
                ul +=   REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE) +
259
                        REG16(add + DC_BLOCK_SIZE - 4) +
260
                        REG16(add + 2);
261
                ul +=   REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 2) +
262
                        REG16(add + DC_BLOCK_SIZE - 8) +
263
                        REG16(add + DC_BLOCK_SIZE + 6);
264
                ul +=   REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 4) +
265
                        REG16(add + DC_BLOCK_SIZE - 12) +
266
                        REG16(add + 2*DC_BLOCK_SIZE + 10);
267
                ul +=   REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 6) +
268
                        REG16(add+ DC_BLOCK_SIZE - 16) +
269
                        REG16(add + 2*DC_BLOCK_SIZE + 14);
270
                add += DC_SETS*DC_BLOCK_SIZE;
271
        }
272
 
273 621 simons
        dc_disable();
274 224 markom
 
275
        return ul;
276
}
277
 
278
int ic_test(void)
279
{
280 322 simons
        int i;
281
        unsigned long base, add;
282
 
283 484 simons
        base = (((unsigned long)MEM_RAM / (IC_SETS*IC_BLOCK_SIZE)) * IC_SETS*IC_BLOCK_SIZE) + IC_SETS*IC_BLOCK_SIZE;
284 349 simons
 
285 322 simons
        /* Copy jr to various location */
286
        add = base;
287
        for(i = 0; i < IC_WAYS; i++) {
288
                copy_jr(add);
289
                copy_jr(add + 2*IC_BLOCK_SIZE + 4);
290
                copy_jr(add + 4*IC_BLOCK_SIZE + 8);
291
                copy_jr(add + 6*IC_BLOCK_SIZE + 12);
292
 
293
                copy_jr(add + (IC_SETS - 2)*IC_BLOCK_SIZE + 0);
294
                copy_jr(add + (IC_SETS - 4)*IC_BLOCK_SIZE + 4);
295
                copy_jr(add + (IC_SETS - 6)*IC_BLOCK_SIZE + 8);
296
                copy_jr(add + (IC_SETS - 8)*IC_BLOCK_SIZE + 12);
297
                add += IC_SETS*IC_BLOCK_SIZE;
298
        }
299
 
300
        /* Load execution table which starts at address 4 (at address 0 is table index) */
301
        add = base;
302
        for(i = 0; i < IC_WAYS; i++) {
303
                /* Cache miss */
304 484 simons
                jump_add[15*i + 0] = add + 2*IC_BLOCK_SIZE + 4;
305
                jump_add[15*i + 1] = add + 4*IC_BLOCK_SIZE + 8;
306
                jump_add[15*i + 2] = add + 6*IC_BLOCK_SIZE + 12;
307 322 simons
                /* Cache hit/miss */
308 484 simons
                jump_add[15*i + 3] = add;
309
                jump_add[15*i + 4] = add + (IC_SETS - 2)*IC_BLOCK_SIZE + 0;
310
                jump_add[15*i + 5] = add + 2*IC_BLOCK_SIZE + 4;
311
                jump_add[15*i + 6] = add + (IC_SETS - 4)*IC_BLOCK_SIZE + 4;
312
                jump_add[15*i + 7] = add + 4*IC_BLOCK_SIZE + 8;
313
                jump_add[15*i + 8] = add + (IC_SETS - 6)*IC_BLOCK_SIZE + 8;
314
                jump_add[15*i + 9] = add + 6*IC_BLOCK_SIZE + 12;
315
                jump_add[15*i + 10] = add + (IC_SETS - 8)*IC_BLOCK_SIZE + 12;
316 322 simons
                /* Cache hit */
317 484 simons
                jump_add[15*i + 11] = add + (IC_SETS - 2)*IC_BLOCK_SIZE + 0;
318
                jump_add[15*i + 12] = add + (IC_SETS - 4)*IC_BLOCK_SIZE + 4;
319
                jump_add[15*i + 13] = add + (IC_SETS - 6)*IC_BLOCK_SIZE + 8;
320
                jump_add[15*i + 14] = add + (IC_SETS - 8)*IC_BLOCK_SIZE + 12;
321
 
322 322 simons
                add += IC_SETS*IC_BLOCK_SIZE;
323
        }
324
 
325
        /* Go home */
326 484 simons
        jump_add[15*i] = (unsigned long)&jalr;
327 322 simons
 
328
        /* Initilalize table index */
329 621 simons
        jump_indx = (unsigned long)&jump_add[0];
330 322 simons
 
331 621 simons
        ic_enable();
332 349 simons
 
333 322 simons
        /* Go */
334
        call(base);
335
 
336 621 simons
        ic_disable();
337 322 simons
 
338 621 simons
        return 0;
339 224 markom
}
340
 
341
int main(void)
342
{
343 621 simons
        unsigned long rc, ret = 0;
344 224 markom
 
345 621 simons
#ifdef UART
346
  /* Initialize controller */
347
  uart_init();
348
#endif
349
 
350
#ifdef UART
351
  print_str("DC test :            ");
352
#endif
353 224 markom
        rc = dc_test();
354 621 simons
  ret += rc;
355
#ifdef UART
356
  print_n(rc+0xdeaddca1);
357
  print_str("\n");
358
#else
359 224 markom
        report(rc + 0xdeaddca1);
360 621 simons
#endif
361 224 markom
 
362 621 simons
#ifdef UART
363
  print_str("DC invalidate test : ");
364
#endif
365
        rc = dc_inv_test(MEM_RAM);
366
  ret += rc;
367
#ifdef UART
368
  print_n(rc + 0x9e8daa91);
369
  print_str("\n");
370
#else
371
        report(rc + 0x9e8daa91);
372
#endif
373 224 markom
 
374 621 simons
#ifdef UART
375
  print_str("IC test :            ");
376
#endif
377 322 simons
        rc = ic_test();
378 621 simons
  ret += rc;
379
#ifdef UART
380
  print_n(rc + 0xdeaddead);
381
  print_str("\n");
382
#else
383
        report(rc + 0xdeaddead);
384
#endif
385 574 markom
 
386 621 simons
 
387
#ifdef UART
388
  print_str("IC invalidate test : ");
389
#endif
390
  ic_enable();
391
  rc = ic_inv_test();
392
  ret += rc;
393
#ifdef UART
394
  print_n(rc + 0xdeadde8f);
395
  print_str("\n");
396
  while(1);
397
#else
398
        report(rc + 0xdeadde8f);
399
#endif
400
 
401
 
402 631 simons
        report(ret + 0x9e8da867);
403 621 simons
  exit(0);
404
 
405 574 markom
        return 0;
406 224 markom
}
407
 
408
/* just for size calculation */
409
void dummy()
410
{
411
}

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