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/* Cache test */
#include "support.h"
#include "spr_defs.h"
 
#define MEM_RAM 0x40100000
 
/* Number of IC sets (power of 2) */
#define IC_SETS 512
#define DC_SETS 512
 
/* Block size in bytes (1, 2, 4, 8, 16, 32 etc.) */
#define IC_BLOCK_SIZE 16
#define DC_BLOCK_SIZE 16
 
/* Number of IC ways (1, 2, 3 etc.). */
#define IC_WAYS 1
#define DC_WAYS 1
 
/* Cache size */
#define IC_SIZE (IC_WAYS*IC_SETS*IC_BLOCK_SIZE)
#define DC_SIZE (DC_WAYS*DC_SETS*DC_BLOCK_SIZE)
 
/* Memory access macros */
#define REG8(add) *((volatile unsigned char *)(add))
#define REG16(add) *((volatile unsigned short *)(add))
#define REG32(add) *((volatile unsigned long *)(add))
 
extern void (*jalr)(void);
extern void (*jr)(void);
 
/* Index on jump table */
unsigned long jump_indx;
 
/* Jump address table */
unsigned long jump_add[15*IC_WAYS];
 
void dummy();
 
void jump_and_link(void)
{
        asm("_jalr:");
}
 
void jump(void)
{
        asm("_jr:");
        /* Read and increment index */
        asm("l.lwz\t\tr3,0(r11)");
        asm("l.addi\t\tr3,r3,4");
        asm("l.sw\t\t0(r11),r3");
        /* Load next executin address from table */
        asm("l.lwz\t\tr3,0(r3)");
        /* Jump to that address */
        asm("l.jr\t\tr3") ;
        /* Report that we succeeded */
        asm("l.nop\t1");
}
 
void copy_jr(unsigned long add)
{
        memcpy((void *)add, (void *)&jr, 24);
}
 
void call(unsigned long add)
{
  asm("l.movhi\tr11,hi(_jump_indx)" : :);
  asm("l.ori\tr11,r11,lo(_jump_indx)" : :);
        asm("l.jr\t\t%0" : : "r" (add) : "r11");
        asm("l.nop" : :);
}
 
void icache_enable(void)
{
        unsigned long add;
 
        /* First invalidate the cache. As at this point cache is disabled,
           the cache acts as it contains image of lowest memory block */
        for(add = 1; add <= IC_SIZE; add += IC_BLOCK_SIZE)
                mtspr(SPR_ICBIR, add);
 
        mtspr(SPR_SR, mfspr(SPR_SR) | SPR_SR_ICE);
}
 
void dcache_enable(void)
{
        unsigned long add;
 
        /* First invalidate the cache. As at this point cache is disabled,
           the cache acts as it contains image of lowest memory block */
        for(add = 1; add <= DC_SIZE; add += DC_BLOCK_SIZE)
                mtspr(SPR_DCBIR, add);
 
        mtspr(SPR_SR, mfspr(SPR_SR) | SPR_SR_DCE);
}
 
void icache_disable(void)
{
 
        /* This is write trough cache so we dont have to flush it */
        mtspr(SPR_SR, mfspr(SPR_SR) & ~SPR_SR_ICE);
}
 
void dcache_disable(void)
{
 
        /* This is write trough cache so we dont have to flush it */
        mtspr(SPR_SR, mfspr(SPR_SR) & ~SPR_SR_DCE);
}
 
int dc_test(void)
{
        int i;
        unsigned long base, add, ul;
 
        base = (((unsigned long)MEM_RAM / (IC_SETS*IC_BLOCK_SIZE)) * IC_SETS*IC_BLOCK_SIZE) + IC_SETS*IC_BLOCK_SIZE;
 
        dcache_enable();
 
        /* Cache miss r */
        add = base;
        for(i = 0; i < DC_WAYS; i++) {
                ul = REG32(add);
                ul = REG32(add + DC_BLOCK_SIZE);
                ul = REG32(add + 2*DC_BLOCK_SIZE);
                ul = REG32(add + 3*DC_BLOCK_SIZE);
                add += DC_SETS*DC_BLOCK_SIZE;
        }
 
        /* Cache hit w */
        add = base;
        for(i = 0; i < DC_WAYS; i++) {
                REG32(add + 0) = 0x00000001;
                REG32(add + DC_BLOCK_SIZE + 4) = 0x00000002;
                REG32(add + 2*DC_BLOCK_SIZE + 8) = 0x00000003;
                REG32(add + 3*DC_BLOCK_SIZE + 12) = 0x00000004;
                add += DC_SETS*DC_BLOCK_SIZE;
        }
 
        /* Cache hit r/w */
        add = base;
        for(i = 0; i < DC_WAYS; i++) {
                REG8(add + DC_BLOCK_SIZE - 4) = REG8(add + 3);
                REG8(add + 2*DC_BLOCK_SIZE - 8) = REG8(add + DC_BLOCK_SIZE + 7);
                REG8(add + 3*DC_BLOCK_SIZE - 12) = REG8(add + 2*DC_BLOCK_SIZE + 11);
                REG8(add + 4*DC_BLOCK_SIZE - 16) = REG8(add + 3*DC_BLOCK_SIZE + 15);
                add += DC_SETS*DC_BLOCK_SIZE;
        }
 
        /* Cache hit/miss r/w */
        add = base;
        for(i = 0; i < DC_WAYS; i++) {
                REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE) = REG16(add + DC_BLOCK_SIZE - 4) + REG16(add + 2);
                REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 2) = REG16(add + DC_BLOCK_SIZE - 8) + REG16(add + DC_BLOCK_SIZE + 6);
                REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 4) = REG16(add + DC_BLOCK_SIZE - 12) + REG16(add + 2*DC_BLOCK_SIZE + 10);
                REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 6) = REG16(add+ DC_BLOCK_SIZE - 16) + REG16(add + 2*DC_BLOCK_SIZE + 14);
                add += DC_SETS*DC_BLOCK_SIZE;
        }
 
        /* Fill cache with unused data */
        add = base + DC_WAYS*DC_SETS*DC_BLOCK_SIZE;
        for(i = 0; i < DC_WAYS; i++) {
                ul = REG32(add);
                ul = REG32(add + DC_BLOCK_SIZE);
                ul = REG32(add + 2*DC_BLOCK_SIZE);
                ul = REG32(add + 3*DC_BLOCK_SIZE);
                add += DC_SETS*DC_BLOCK_SIZE;
        }
 
        /* Cache hit/miss r */
        ul = 0;
        add = base;
        for(i = 0; i < DC_WAYS; i++) {
                ul +=   REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE) +
                        REG16(add + DC_BLOCK_SIZE - 4) +
                        REG16(add + 2);
                ul +=   REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 2) +
                        REG16(add + DC_BLOCK_SIZE - 8) +
                        REG16(add + DC_BLOCK_SIZE + 6);
                ul +=   REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 4) +
                        REG16(add + DC_BLOCK_SIZE - 12) +
                        REG16(add + 2*DC_BLOCK_SIZE + 10);
                ul +=   REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 6) +
                        REG16(add+ DC_BLOCK_SIZE - 16) +
                        REG16(add + 2*DC_BLOCK_SIZE + 14);
                add += DC_SETS*DC_BLOCK_SIZE;
        }
 
        dcache_disable();
 
        return ul;
}
 
int ic_test(void)
{
        int i;
        unsigned long base, add;
 
        base = (((unsigned long)MEM_RAM / (IC_SETS*IC_BLOCK_SIZE)) * IC_SETS*IC_BLOCK_SIZE) + IC_SETS*IC_BLOCK_SIZE;
 
        /* Copy jr to various location */
        add = base;
        for(i = 0; i < IC_WAYS; i++) {
                copy_jr(add);
                copy_jr(add + 2*IC_BLOCK_SIZE + 4);
                copy_jr(add + 4*IC_BLOCK_SIZE + 8);
                copy_jr(add + 6*IC_BLOCK_SIZE + 12);
 
                copy_jr(add + (IC_SETS - 2)*IC_BLOCK_SIZE + 0);
                copy_jr(add + (IC_SETS - 4)*IC_BLOCK_SIZE + 4);
                copy_jr(add + (IC_SETS - 6)*IC_BLOCK_SIZE + 8);
                copy_jr(add + (IC_SETS - 8)*IC_BLOCK_SIZE + 12);
                add += IC_SETS*IC_BLOCK_SIZE;
        }
 
        /* Load execution table which starts at address 4 (at address 0 is table index) */
        add = base;
        for(i = 0; i < IC_WAYS; i++) {
                /* Cache miss */
                jump_add[15*i + 0] = add + 2*IC_BLOCK_SIZE + 4;
                jump_add[15*i + 1] = add + 4*IC_BLOCK_SIZE + 8;
                jump_add[15*i + 2] = add + 6*IC_BLOCK_SIZE + 12;
                /* Cache hit/miss */
                jump_add[15*i + 3] = add;
                jump_add[15*i + 4] = add + (IC_SETS - 2)*IC_BLOCK_SIZE + 0;
                jump_add[15*i + 5] = add + 2*IC_BLOCK_SIZE + 4;
                jump_add[15*i + 6] = add + (IC_SETS - 4)*IC_BLOCK_SIZE + 4;
                jump_add[15*i + 7] = add + 4*IC_BLOCK_SIZE + 8;
                jump_add[15*i + 8] = add + (IC_SETS - 6)*IC_BLOCK_SIZE + 8;
                jump_add[15*i + 9] = add + 6*IC_BLOCK_SIZE + 12;
                jump_add[15*i + 10] = add + (IC_SETS - 8)*IC_BLOCK_SIZE + 12;
                /* Cache hit */
                jump_add[15*i + 11] = add + (IC_SETS - 2)*IC_BLOCK_SIZE + 0;
                jump_add[15*i + 12] = add + (IC_SETS - 4)*IC_BLOCK_SIZE + 4;
                jump_add[15*i + 13] = add + (IC_SETS - 6)*IC_BLOCK_SIZE + 8;
                jump_add[15*i + 14] = add + (IC_SETS - 8)*IC_BLOCK_SIZE + 12;
 
                add += IC_SETS*IC_BLOCK_SIZE;
        }
 
        /* Go home */
        jump_add[15*i] = (unsigned long)&jalr;
 
        /* Initilalize table index */
        jump_indx = &jump_add[0];
 
        icache_enable();
 
        /* Go */
        call(base);
 
        icache_disable();
 
        return 0xdeaddead;
}
 
int main(void)
{
        int rc;
 
        rc = dc_test();
        report(rc + 0xdeaddca1);
 
        /* Be aware that this test doesn't report result troug report call.
           It writes to spr 0x1234 directly (in jump function)!!!
 
           This test can not be run on or1ksim. */
        rc = ic_test();
        report(rc);
 
        exit(0);
}
 
/* just for size calculation */
void dummy()
{
}

Line No.	Rev	Author	Line
1	224	markom	`/* Cache test */`
2			`#include "support.h"`
3			`#include "spr_defs.h"`
4
5	484	simons	`#define MEM_RAM 0x40100000`
6	424	markom
7	224	markom	`/* Number of IC sets (power of 2) */`
8			`#define IC_SETS 512`
9			`#define DC_SETS 512`
10
11			`/* Block size in bytes (1, 2, 4, 8, 16, 32 etc.) */`
12			`#define IC_BLOCK_SIZE 16`
13			`#define DC_BLOCK_SIZE 16`
14
15			`/* Number of IC ways (1, 2, 3 etc.). */`
16			`#define IC_WAYS 1`
17			`#define DC_WAYS 1`
18
19			`/* Cache size */`
20			`#define IC_SIZE (IC_WAYSIC_SETSIC_BLOCK_SIZE)`
21			`#define DC_SIZE (DC_WAYSDC_SETSDC_BLOCK_SIZE)`
22
23			`/* Memory access macros */`
24			`#define REG8(add) ((volatile unsigned char )(add))`
25			`#define REG16(add) ((volatile unsigned short )(add))`
26			`#define REG32(add) ((volatile unsigned long )(add))`
27
28			`extern void (*jalr)(void);`
29			`extern void (*jr)(void);`
30
31	484	simons	`/* Index on jump table */`
32			`unsigned long jump_indx;`
33
34			`/* Jump address table */`
35			`unsigned long jump_add[15*IC_WAYS];`
36
37	224	markom	`void dummy();`
38
39			`void jump_and_link(void)`
40			`{`
41			`asm("_jalr:");`
42			`}`
43
44			`void jump(void)`
45			`{`
46			`asm("_jr:");`
47			`/* Read and increment index */`
48	484	simons	`asm("l.lwz\t\tr3,0(r11)");`
49	224	markom	`asm("l.addi\t\tr3,r3,4");`
50	484	simons	`asm("l.sw\t\t0(r11),r3");`
51	224	markom	`/* Load next executin address from table */`
52			`asm("l.lwz\t\tr3,0(r3)");`
53			`/* Jump to that address */`
54			`asm("l.jr\t\tr3") ;`
55			`/* Report that we succeeded */`
56	534	simons	`asm("l.nop\t1");`
57	224	markom	`}`
58
59			`void copy_jr(unsigned long add)`
60			`{`
61	322	simons	`memcpy((void )add, (void )&jr, 24);`
62	224	markom	`}`
63
64			`void call(unsigned long add)`
65			`{`
66	484	simons	`asm("l.movhi\tr11,hi(_jump_indx)" : :);`
67			`asm("l.ori\tr11,r11,lo(_jump_indx)" : :);`
68	322	simons	`asm("l.jr\t\t%0" : : "r" (add) : "r11");`
69	224	markom	`asm("l.nop" : :);`
70			`}`
71
72			`void icache_enable(void)`
73			`{`
74			`unsigned long add;`
75
76			`/* First invalidate the cache. As at this point cache is disabled,`
77			`the cache acts as it contains image of lowest memory block */`
78			`for(add = 1; add <= IC_SIZE; add += IC_BLOCK_SIZE)`
79			`mtspr(SPR_ICBIR, add);`
80
81			`mtspr(SPR_SR, mfspr(SPR_SR) \| SPR_SR_ICE);`
82			`}`
83
84			`void dcache_enable(void)`
85			`{`
86			`unsigned long add;`
87
88			`/* First invalidate the cache. As at this point cache is disabled,`
89			`the cache acts as it contains image of lowest memory block */`
90			`for(add = 1; add <= DC_SIZE; add += DC_BLOCK_SIZE)`
91			`mtspr(SPR_DCBIR, add);`
92
93			`mtspr(SPR_SR, mfspr(SPR_SR) \| SPR_SR_DCE);`
94			`}`
95
96			`void icache_disable(void)`
97			`{`
98
99			`/* This is write trough cache so we dont have to flush it */`
100			`mtspr(SPR_SR, mfspr(SPR_SR) & ~SPR_SR_ICE);`
101			`}`
102
103			`void dcache_disable(void)`
104			`{`
105
106			`/* This is write trough cache so we dont have to flush it */`
107			`mtspr(SPR_SR, mfspr(SPR_SR) & ~SPR_SR_DCE);`
108			`}`
109
110			`int dc_test(void)`
111			`{`
112			`int i;`
113			`unsigned long base, add, ul;`
114
115	484	simons	`base = (((unsigned long)MEM_RAM / (IC_SETSIC_BLOCK_SIZE)) IC_SETSIC_BLOCK_SIZE) + IC_SETSIC_BLOCK_SIZE;`
116	224	markom
117			`dcache_enable();`
118
119			`/* Cache miss r */`
120			`add = base;`
121			`for(i = 0; i < DC_WAYS; i++) {`
122			`ul = REG32(add);`
123			`ul = REG32(add + DC_BLOCK_SIZE);`
124			`ul = REG32(add + 2*DC_BLOCK_SIZE);`
125			`ul = REG32(add + 3*DC_BLOCK_SIZE);`
126			`add += DC_SETS*DC_BLOCK_SIZE;`
127			`}`
128
129			`/* Cache hit w */`
130			`add = base;`
131			`for(i = 0; i < DC_WAYS; i++) {`
132			`REG32(add + 0) = 0x00000001;`
133			`REG32(add + DC_BLOCK_SIZE + 4) = 0x00000002;`
134			`REG32(add + 2*DC_BLOCK_SIZE + 8) = 0x00000003;`
135			`REG32(add + 3*DC_BLOCK_SIZE + 12) = 0x00000004;`
136			`add += DC_SETS*DC_BLOCK_SIZE;`
137			`}`
138
139			`/* Cache hit r/w */`
140			`add = base;`
141			`for(i = 0; i < DC_WAYS; i++) {`
142			`REG8(add + DC_BLOCK_SIZE - 4) = REG8(add + 3);`
143			`REG8(add + 2*DC_BLOCK_SIZE - 8) = REG8(add + DC_BLOCK_SIZE + 7);`
144			`REG8(add + 3DC_BLOCK_SIZE - 12) = REG8(add + 2DC_BLOCK_SIZE + 11);`
145			`REG8(add + 4DC_BLOCK_SIZE - 16) = REG8(add + 3DC_BLOCK_SIZE + 15);`
146			`add += DC_SETS*DC_BLOCK_SIZE;`
147			`}`
148
149			`/* Cache hit/miss r/w */`
150			`add = base;`
151			`for(i = 0; i < DC_WAYS; i++) {`
152			`REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE) = REG16(add + DC_BLOCK_SIZE - 4) + REG16(add + 2);`
153			`REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 2) = REG16(add + DC_BLOCK_SIZE - 8) + REG16(add + DC_BLOCK_SIZE + 6);`
154			`REG16(add + (IC_SETS - 1)IC_BLOCK_SIZE + 4) = REG16(add + DC_BLOCK_SIZE - 12) + REG16(add + 2DC_BLOCK_SIZE + 10);`
155			`REG16(add + (IC_SETS - 1)IC_BLOCK_SIZE + 6) = REG16(add+ DC_BLOCK_SIZE - 16) + REG16(add + 2DC_BLOCK_SIZE + 14);`
156			`add += DC_SETS*DC_BLOCK_SIZE;`
157			`}`
158
159			`/* Fill cache with unused data */`
160			`add = base + DC_WAYSDC_SETSDC_BLOCK_SIZE;`
161			`for(i = 0; i < DC_WAYS; i++) {`
162			`ul = REG32(add);`
163			`ul = REG32(add + DC_BLOCK_SIZE);`
164			`ul = REG32(add + 2*DC_BLOCK_SIZE);`
165			`ul = REG32(add + 3*DC_BLOCK_SIZE);`
166			`add += DC_SETS*DC_BLOCK_SIZE;`
167			`}`
168
169			`/* Cache hit/miss r */`
170			`ul = 0;`
171			`add = base;`
172			`for(i = 0; i < DC_WAYS; i++) {`
173			`ul += REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE) +`
174			`REG16(add + DC_BLOCK_SIZE - 4) +`
175			`REG16(add + 2);`
176			`ul += REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 2) +`
177			`REG16(add + DC_BLOCK_SIZE - 8) +`
178			`REG16(add + DC_BLOCK_SIZE + 6);`
179			`ul += REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 4) +`
180			`REG16(add + DC_BLOCK_SIZE - 12) +`
181			`REG16(add + 2*DC_BLOCK_SIZE + 10);`
182			`ul += REG16(add + (IC_SETS - 1)*IC_BLOCK_SIZE + 6) +`
183			`REG16(add+ DC_BLOCK_SIZE - 16) +`
184			`REG16(add + 2*DC_BLOCK_SIZE + 14);`
185			`add += DC_SETS*DC_BLOCK_SIZE;`
186			`}`
187
188			`dcache_disable();`
189
190			`return ul;`
191			`}`
192
193			`int ic_test(void)`
194			`{`
195	322	simons	`int i;`
196			`unsigned long base, add;`
197
198	484	simons	`base = (((unsigned long)MEM_RAM / (IC_SETSIC_BLOCK_SIZE)) IC_SETSIC_BLOCK_SIZE) + IC_SETSIC_BLOCK_SIZE;`
199	349	simons
200	322	simons	`/* Copy jr to various location */`
201			`add = base;`
202			`for(i = 0; i < IC_WAYS; i++) {`
203			`copy_jr(add);`
204			`copy_jr(add + 2*IC_BLOCK_SIZE + 4);`
205			`copy_jr(add + 4*IC_BLOCK_SIZE + 8);`
206			`copy_jr(add + 6*IC_BLOCK_SIZE + 12);`
207
208			`copy_jr(add + (IC_SETS - 2)*IC_BLOCK_SIZE + 0);`
209			`copy_jr(add + (IC_SETS - 4)*IC_BLOCK_SIZE + 4);`
210			`copy_jr(add + (IC_SETS - 6)*IC_BLOCK_SIZE + 8);`
211			`copy_jr(add + (IC_SETS - 8)*IC_BLOCK_SIZE + 12);`
212			`add += IC_SETS*IC_BLOCK_SIZE;`
213			`}`
214
215			`/* Load execution table which starts at address 4 (at address 0 is table index) */`
216			`add = base;`
217			`for(i = 0; i < IC_WAYS; i++) {`
218			`/* Cache miss */`
219	484	simons	`jump_add[15i + 0] = add + 2IC_BLOCK_SIZE + 4;`
220			`jump_add[15i + 1] = add + 4IC_BLOCK_SIZE + 8;`
221			`jump_add[15i + 2] = add + 6IC_BLOCK_SIZE + 12;`
222	322	simons	`/* Cache hit/miss */`
223	484	simons	`jump_add[15*i + 3] = add;`
224			`jump_add[15i + 4] = add + (IC_SETS - 2)IC_BLOCK_SIZE + 0;`
225			`jump_add[15i + 5] = add + 2IC_BLOCK_SIZE + 4;`
226			`jump_add[15i + 6] = add + (IC_SETS - 4)IC_BLOCK_SIZE + 4;`
227			`jump_add[15i + 7] = add + 4IC_BLOCK_SIZE + 8;`
228			`jump_add[15i + 8] = add + (IC_SETS - 6)IC_BLOCK_SIZE + 8;`
229			`jump_add[15i + 9] = add + 6IC_BLOCK_SIZE + 12;`
230			`jump_add[15i + 10] = add + (IC_SETS - 8)IC_BLOCK_SIZE + 12;`
231	322	simons	`/* Cache hit */`
232	484	simons	`jump_add[15i + 11] = add + (IC_SETS - 2)IC_BLOCK_SIZE + 0;`
233			`jump_add[15i + 12] = add + (IC_SETS - 4)IC_BLOCK_SIZE + 4;`
234			`jump_add[15i + 13] = add + (IC_SETS - 6)IC_BLOCK_SIZE + 8;`
235			`jump_add[15i + 14] = add + (IC_SETS - 8)IC_BLOCK_SIZE + 12;`
236
237	322	simons	`add += IC_SETS*IC_BLOCK_SIZE;`
238			`}`
239
240			`/* Go home */`
241	484	simons	`jump_add[15*i] = (unsigned long)&jalr;`
242	322	simons
243			`/* Initilalize table index */`
244	484	simons	`jump_indx = &jump_add[0];`
245	322	simons
246	349	simons	`icache_enable();`
247
248	322	simons	`/* Go */`
249			`call(base);`
250
251			`icache_disable();`
252
253			`return 0xdeaddead;`
254	224	markom	`}`
255
256			`int main(void)`
257			`{`
258			`int rc;`
259
260			`rc = dc_test();`
261			`report(rc + 0xdeaddca1);`
262
263			`/* Be aware that this test doesn't report result troug report call.`
264			`It writes to spr 0x1234 directly (in jump function)!!!`
265
266			`This test can not be run on or1ksim. */`
267	322	simons	`rc = ic_test();`
268	224	markom	`report(rc);`
269	322	simons
270	224	markom	`exit(0);`
271			`}`
272
273			`/* just for size calculation */`
274			`void dummy()`
275			`{`
276			`}`

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[/] [or1k/] [tags/] [nog_patch_47/] [or1ksim/] [testbench/] [cache.c] - Blame information for rev 534