diff options
Diffstat (limited to 'apps/xilinx2.c')
| -rw-r--r-- | apps/xilinx2.c | 46 |
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 */ + + } |