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-rw-r--r--apps/xilinx2.c46
1 files changed, 43 insertions, 3 deletions
diff --git a/apps/xilinx2.c b/apps/xilinx2.c
index 6dd1be3..90a2b6a 100644
--- a/apps/xilinx2.c
+++ b/apps/xilinx2.c
@@ -2,6 +2,7 @@
#define _POSIX_C_SOURCE 199309L
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <unistd.h>
#include <stdarg.h>
#include <time.h>
@@ -15,9 +16,10 @@
#define DEVICE "/dev/fpga0"
#define BAR PCILIB_BAR0
#define USE PCILIB_KMEM_USE(PCILIB_KMEM_USE_USER, 1)
+#define STATIC_REGION 0x80000000 // to reserve 512 MB at the specified address, add "memmap=512M$2G" to kernel parameters
#define BUFFERS 1
-#define ITERATIONS 16384
-#define HUGE_PAGE 128 // number of pages per huge page
+#define ITERATIONS 100
+#define HUGE_PAGE 4096 // number of pages per huge page
#define PAGE_SIZE 4096 // other values are not supported in the kernel
#define TIMEOUT 100000
@@ -28,6 +30,7 @@ much extra time */
//#define CHECK_READY
//#define REALTIME
//#define ADD_DELAYS
+#define CHECK_RESULT
//#define WR(addr, value) { val = value; pcilib_write(pci, BAR, addr, sizeof(val), &val); }
//#define RD(addr, value) { pcilib_read(pci, BAR, addr, sizeof(val), &val); value = val; }
@@ -64,7 +67,7 @@ void hpsleep(size_t ns) {
int main() {
int err;
- int i, j;
+ long i, j;
pcilib_t *pci;
pcilib_kmem_handle_t *kbuf;
uint32_t status;
@@ -110,7 +113,30 @@ int main() {
pcilib_clean_kernel_memory(pci, USE, clean_flags);
+#ifdef STATIC_REGION
+ kbuf = pcilib_alloc_kernel_memory(pci, PCILIB_KMEM_TYPE_REGION_C2S, BUFFERS, HUGE_PAGE * PAGE_SIZE, STATIC_REGION, USE, 0);
+#else /* STATIC_REGION */
kbuf = pcilib_alloc_kernel_memory(pci, PCILIB_KMEM_TYPE_DMA_C2S_PAGE, BUFFERS, HUGE_PAGE * PAGE_SIZE, 4096, USE, 0);
+#endif /* STATIC_REGION */
+
+ if (!kbuf) {
+ printf("KMem allocation failed\n");
+ exit(0);
+ }
+
+
+#ifdef CHECK_RESULT
+ volatile uint32_t *ptr0 = pcilib_kmem_get_block_ua(pci, kbuf, 0);
+
+ memset((void*)ptr0, 0, (HUGE_PAGE * PAGE_SIZE));
+
+ for (i = 0; i < (HUGE_PAGE * PAGE_SIZE / 4); i++) {
+ if (ptr0[i] != 0) break;
+ }
+ if (i < (HUGE_PAGE * PAGE_SIZE / 4)) {
+ printf("Initialization error in position %lu, value = %x\n", i * 4, ptr0[i]);
+ }
+#endif /* CHECK_RESULT */
WR(0x04, 0)
WR(0x0C, 0x20)
@@ -163,6 +189,18 @@ int main() {
}
gettimeofday(&end, NULL);
+
+#ifdef CHECK_RESULT
+ pcilib_kmem_sync_block(pci, kbuf, PCILIB_KMEM_SYNC_FROMDEVICE, 0);
+
+ for (i = 0; i < (HUGE_PAGE * PAGE_SIZE / 4); i++) {
+ if (ptr0[i] != 0x13131313) break;
+ }
+ if (i < (HUGE_PAGE * PAGE_SIZE / 4)) {
+ printf("Error in position %lu, value = %x\n", i * 4, ptr0[i]);
+ }
+#endif /* CHECK_RESULT */
+
pcilib_free_kernel_memory(pci, kbuf, 0);
pcilib_disable_irq(pci, 0);
pcilib_unmap_bar(pci, BAR, bar);
@@ -176,4 +214,6 @@ int main() {
# ifdef ADD_DELAYS
printf("Repeats: %lf, %lf\n",1. * rpt / (ITERATIONS * BUFFERS), 1. * rpt2 / (ITERATIONS * BUFFERS));
#endif /* USE_IRQ */
+
+
}