functionality test added

diff --git a/Makefile b/Makefile
index 4fe3306..4cf37a6 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 CC = $(CROSS_COMPILE)gcc
 AR = $(CROSS_COMPILE)ar
-CFLAGS += -Wall
+CFLAGS += -Wall -O2
 
 WARM_A = libwarm.a
 WARM_SO = libwarm.so

diff --git a/test.c b/test.c
index ced9433..8b315f9 100644 (file)
--- a/test.c
+++ b/test.c
@@ -1,10 +1,254 @@
+/*
+ * wARM functionality test
+ *
+ * written by Gražvydas "notaz" Ignotas
+ *
+ * see warm.c for license info
+ */
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+
+#if 1
 #include "warm.h"
+#else
+#define warm_init(...) 0
+#define warm_finish(...)
+#define warm_cache_op_range(...)
+#define warm_change_cb_range(...)
+#endif
+
+typedef unsigned long long u64;
+static u64 start_time, end_time;
+
+static unsigned char buff[8 * 1024 * 1024] __attribute__((aligned(32)));
+static unsigned char *buff_mid = &buff[8 * 1024 * 1024 / 2];
+
+static u64 xtime(void)
+{
+       struct timeval tv;
+       gettimeofday(&tv, NULL);
+       return (u64)tv.tv_sec * 1000000 + tv.tv_usec;
+}
+
+static void test_start(void)
+{
+       start_time = xtime();
+}
+
+static void test_end(void)
+{
+       end_time = xtime();
+}
+
+static void show_result(const char *name, int bytes)
+{
+       double secs = (end_time - start_time) / 1000000.0;
+       printf("%-16s: %4.1fs, %5.1f MB/s\n", name, secs, bytes / secs / 1048576);
+}
+
+static void do_memset(void)
+{
+       memset(buff, 0, sizeof(buff));
+}
+
+static void byte_fill(void)
+{
+       char *p = (void *)buff;
+       int i;
+       for (i = sizeof(buff); i > 0; i--)
+               *p++ = 0;
+}
+
+static void word_fill(void)
+{
+       long *p = (void *)buff;
+       int i;
+       for (i = sizeof(buff) / sizeof(*p); i > 0; i--)
+               *p++ = 0;
+}
+
+static void do_memcpy(void)
+{
+       memcpy(buff, buff_mid, sizeof(buff) / 2);
+}
+
+static void byte_cpy(void)
+{
+       char *d = (void *)buff;
+       char *s = (void *)buff_mid;
+       int i;
+       for (i = sizeof(buff) / sizeof(*d) / 2; i > 0; i--)
+               *d++ = *s++;
+}
+
+static void word_cpy(void)
+{
+       long *d = (void *)buff;
+       long *s = (void *)buff_mid;
+       int i;
+       for (i = sizeof(buff) / sizeof(*d) / 2; i > 0; i--)
+               *d++ = *s++;
+}
+
+static void word_inc(void)
+{
+       long *p = (void *)buff;
+       int i;
+
+       for (i = sizeof(buff) / sizeof(*p); i > 0; i--) {
+               (*p)++;
+               p++;
+       }
+}
+
+#define ONE_TEST(count, func) \
+       test_start(); \
+       for (i = count; i > 0; i--) \
+               func(); \
+       test_end()
+
+static void tests(void)
+{
+       int i;
+
+       ONE_TEST(64, do_memset);
+       show_result("memset", sizeof(buff) * 64);
+
+       ONE_TEST(64, byte_fill);
+       show_result("byte fill", sizeof(buff) * 64);
+
+       ONE_TEST(64, word_fill);
+       show_result("word fill", sizeof(buff) * 64);
+
+       ONE_TEST(128, do_memcpy);
+       show_result("memcpy", sizeof(buff) * 128 / 2);
+
+       ONE_TEST(128, byte_cpy);
+       show_result("byte copy", sizeof(buff) * 128 / 2);
+
+       ONE_TEST(128, word_cpy);
+       show_result("word copy", sizeof(buff) * 128 / 2);
+
+       ONE_TEST(64, word_inc);
+       show_result("word inc", sizeof(buff) * 64);
+
+       usleep(200000);
+}
+
+#if 1
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+void coherency_test(void)
+{
+       volatile unsigned char *buff_mapped;
+       volatile unsigned char *buff_vol;
+       unsigned long buff_phys, align;
+       unsigned char buff_mapped_vals[5];
+       unsigned char buff_vals[5];
+       int random_offs;
+       int memdev;
+
+       srand(time(NULL));
+
+       buff_phys = warm_virt2phys(buff);
+       align = buff_phys & 0xfff;
+
+       memdev = open("/dev/mem", O_RDONLY | O_SYNC);
+       if (memdev < 0) {
+               perror("open /dev/mem");
+               return;
+       }
+
+       /* the mapping is valid for 1 page only. */
+       buff_mapped = mmap(NULL, 0x1000, PROT_READ,
+                       MAP_SHARED, memdev, buff_phys & ~0xfff);
+       if (buff_mapped == MAP_FAILED) {
+               perror("mmap buff");
+               return;
+       }
+       buff_mapped += align;
+
+       random_offs = rand() % (0x1000 - align);
+
+       buff_vol = (volatile void *)buff;
+       buff_vals[0] = buff_vol[random_offs]; buff_mapped_vals[0] = buff_mapped[random_offs];
+
+       /* incremented: */
+       buff_vol[random_offs]++;
+       buff_vals[1] = buff_vol[random_offs]; buff_mapped_vals[1] = buff_mapped[random_offs];
+
+       /* cleaned: */
+       warm_cache_op_range(WOP_D_CLEAN, (char *)buff_vol + random_offs, 32);
+       buff_vals[2] = buff_vol[random_offs]; buff_mapped_vals[2] = buff_mapped[random_offs];
+
+       /* incremented: */
+       buff_vol[random_offs]++;
+       buff_vals[3] = buff_vol[random_offs]; buff_mapped_vals[3] = buff_mapped[random_offs];
+
+       /* invalidated: */
+       warm_cache_op_range(WOP_D_INVALIDATE, (char *)buff_vol + random_offs, 32);
+       buff_vals[4] = buff_vol[random_offs]; buff_mapped_vals[4] = buff_mapped[random_offs];
+
+       printf("buff is @ %p -> %lx, mapped %p, random offset %x\n", buff_vol, buff_phys,
+               buff_mapped, random_offs);
+       printf("val: %02x, mmaped: %02x\n", buff_vals[0], buff_mapped_vals[0]);
+
+       printf("incremented:\n");
+       printf("val: %02x, mmaped: %02x\n", buff_vals[1], buff_mapped_vals[1]);
+
+       printf("cleaned:\n");
+       printf("val: %02x, mmaped: %02x\n", buff_vals[2], buff_mapped_vals[2]);
+
+       printf("incremented:\n");
+       printf("val: %02x, mmaped: %02x\n", buff_vals[3], buff_mapped_vals[3]);
+
+       printf("invalidated:\n");
+       printf("val: %02x, mmaped: %02x\n", buff_vals[4], buff_mapped_vals[4]);
+}
+#else
+#define coherency_test()
+#endif
 
 int main()
 {
-       warm_init();
-       warm_cache_op_range(0, 0, 0);
+       int ret;
+
+       ret = warm_init();
+       if (ret != 0)
+       {
+               printf("init failed.\n");
+               return 1;
+       }
+
+       printf("buff: %p - %p\n", buff, buff + sizeof(buff) - 1);
+
+       printf("-- default --\n");
+       tests();
+
+       printf("-- ncnb --\n");
+       warm_change_cb_range(WCB_C_BIT|WCB_B_BIT, 0, buff, sizeof(buff));
+       tests();
+
+       printf("-- nc b --\n");
+       warm_change_cb_range(WCB_B_BIT, 1, buff, sizeof(buff));
+       tests();
+
+       printf("--  cnb --\n");
+       warm_change_cb_range(WCB_C_BIT, 1, buff, sizeof(buff));
+       warm_change_cb_range(WCB_B_BIT, 0, buff, sizeof(buff));
+       tests();
+
+       warm_change_cb_range(WCB_C_BIT|WCB_B_BIT, 1, buff, sizeof(buff));
+       coherency_test();
+
+       warm_finish();
 
        return 0;
 }