summaryrefslogtreecommitdiffstats
path: root/apps/xilinx.c
diff options
context:
space:
mode:
Diffstat (limited to 'apps/xilinx.c')
-rw-r--r--apps/xilinx.c225
1 files changed, 0 insertions, 225 deletions
diff --git a/apps/xilinx.c b/apps/xilinx.c
deleted file mode 100644
index 757c388..0000000
--- a/apps/xilinx.c
+++ /dev/null
@@ -1,225 +0,0 @@
-#define _BSD_SOURCE
-#define _POSIX_C_SOURCE 199309L
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdarg.h>
-#include <time.h>
-#include <sched.h>
-#include <sys/time.h>
-
-#include "pcilib.h"
-#include "irq.h"
-#include "kmem.h"
-
-#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 100
-#define TLP_SIZE 64
-#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
-
-/* IRQs are slow for some reason. REALTIME mode is slower. Adding delays does not really help,
-otherall we have only 3 checks in average. Check ready seems to be not needed and adds quite
-much extra time */
-#define USE_IRQ
-//#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; }
-#define WR(addr, value) { *(uint32_t*)(bar + addr + offset) = value; }
-#define RD(addr, value) { value = *(uint32_t*)(bar + addr + offset); }
-
-static void fail(const char *msg, ...) {
- va_list va;
-
- va_start(va, msg);
- vprintf(msg, va);
- va_end(va);
- printf("\n");
-
- exit(-1);
-}
-
-void hpsleep(size_t ns) {
- struct timespec wait, tv;
-
- clock_gettime(CLOCK_REALTIME, &wait);
-
- wait.tv_nsec += ns;
- if (wait.tv_nsec > 999999999) {
- wait.tv_sec += 1;
- wait.tv_nsec = 1000000000 - wait.tv_nsec;
- }
-
- do {
- clock_gettime(CLOCK_REALTIME, &tv);
- } while ((wait.tv_sec > tv.tv_sec)||((wait.tv_sec == tv.tv_sec)&&(wait.tv_nsec > tv.tv_nsec)));
-}
-
-
-int main() {
- int err;
- long i, j;
- pcilib_t *pci;
- pcilib_kmem_handle_t *kbuf;
- uint32_t status;
- struct timeval start, end;
- size_t size, run_time;
- void* volatile bar;
- uintptr_t bus_addr[BUFFERS];
-
- pcilib_bar_t bar_tmp = BAR;
- uintptr_t offset = 0;
-
- pcilib_kmem_flags_t clean_flags = PCILIB_KMEM_FLAG_HARDWARE|PCILIB_KMEM_FLAG_PERSISTENT|PCILIB_KMEM_FLAG_EXCLUSIVE;
-
-#ifdef ADD_DELAYS
- long rpt = 0, rpt2 = 0;
- size_t best_time;
- best_time = 1000000000L * HUGE_PAGE * PAGE_SIZE / (4L * 1024 * 1024 * 1024);
-#endif /* ADD_DELAYS */
-
-#ifdef REALTIME
- pid_t pid;
- struct sched_param sched = {0};
-
- pid = getpid();
- sched.sched_priority = sched_get_priority_min(SCHED_FIFO);
- if (sched_setscheduler(pid, SCHED_FIFO, &sched))
- printf("Warning: not able to get real-time priority\n");
-#endif /* REALTIME */
-
- pci = pcilib_open(DEVICE, PCILIB_MODEL_DETECT);
- if (!pci) fail("pcilib_open");
-
- bar = pcilib_map_bar(pci, BAR);
- if (!bar) {
- pcilib_close(pci);
- fail("map bar");
- }
-
- pcilib_detect_address(pci, &bar_tmp, &offset, 1);
-
- // Reset
- WR(0x00, 1)
- usleep(1000);
- WR(0x00, 0)
-
- pcilib_enable_irq(pci, PCILIB_IRQ_TYPE_ALL, 0);
- pcilib_clear_irq(pci, PCILIB_IRQ_SOURCE_DEFAULT);
-
- 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, TLP_SIZE)
- WR(0x10, (HUGE_PAGE * (PAGE_SIZE / (4 * TLP_SIZE))))
- WR(0x14, 0x13131313)
-
- for (j = 0; j < BUFFERS; j++ ) {
- bus_addr[j] = pcilib_kmem_get_block_ba(pci, kbuf, j);
- }
-
- gettimeofday(&start, NULL);
-
- for (i = 0; i < ITERATIONS; i++) {
- for (j = 0; j < BUFFERS; j++ ) {
-// uintptr_t ba = pcilib_kmem_get_block_ba(pci, kbuf, j);
-// WR(0x08, ba)
- WR(0x08, bus_addr[j]);
- WR(0x04, 0x01)
-
-#ifdef USE_IRQ
- err = pcilib_wait_irq(pci, PCILIB_IRQ_SOURCE_DEFAULT, TIMEOUT, NULL);
- if (err) printf("Timeout waiting for IRQ, err: %i\n", err);
-
- RD(0x04, status);
- if ((status&0xFFFF) != 0x101) printf("Invalid status %x\n", status);
-// WR(0x04, 0x00);
-#else /* USE_IRQ */
-# ifdef ADD_DELAYS
-// hpsleep(best_time);
- do {
- rpt++;
- RD(0x04, status);
- } while (status != 0x101);
-# else /* ADD_DELAYS */
- do {
- RD(0x04, status);
- } while (status != 0x101);
-# endif /* ADD_DELAYS */
-#endif /* USE_IRQ */
-
- WR(0x00, 1)
-#ifdef CHECK_READY
- do {
- rpt2++;
- RD(0x04, status);
- } while (status != 0);
-#endif /* CHECK_READY */
- WR(0x00, 0)
- }
- }
- 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++) {
-// printf("%lx ", ptr0[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);
- pcilib_close(pci);
-
- run_time = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_usec - start.tv_usec);
- size = (long long int)ITERATIONS * BUFFERS * HUGE_PAGE * PAGE_SIZE;
-
- printf("%.3lf GB/s: transfered %zu bytes in %zu us using %u buffers\n", 1000000. * size / run_time / 1024 / 1024 / 1024, size, run_time, BUFFERS);
-
-# ifdef ADD_DELAYS
- printf("Repeats: %lf, %lf\n",1. * rpt / (ITERATIONS * BUFFERS), 1. * rpt2 / (ITERATIONS * BUFFERS));
-#endif /* USE_IRQ */
-
-
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 23:39:57 +0000