From 38e809e11d9d4764f4d93faa4238deb11032e5e2 Mon Sep 17 00:00:00 2001 From: notaz Date: Fri, 19 Jun 2009 23:22:28 +0300 Subject: [PATCH] functionality test added --- Makefile | 2 +- test.c | 248 ++++++++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 247 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index 4fe3306..4cf37a6 100644 --- 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 --- 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 +#include +#include +#include +#include +#include + +#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 +#include +#include +#include + +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; } -- 2.39.2