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Bring up FireSim tests

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This commit is contained in:
David Biancolin
2019-05-28 22:51:39 +00:00
parent 2a58f387ed
commit a53abf1856
5 changed files with 76 additions and 38 deletions
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2
tests/Makefile
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@@ -3,7 +3,7 @@ OBJDUMP=riscv64-unknown-elf-objdump
CFLAGS=-mcmodel=medany -std=gnu99 -O2 -fno-common -fno-builtin-printf -Wall
LDFLAGS=-static -nostdlib -nostartfiles -lgcc
PROGRAMS = pwm blkdev accum charcount
PROGRAMS = pwm blkdev accum charcount nic-loopback big-blkdev pingd
default: $(addsuffix .riscv,$(PROGRAMS))

43
tests/blkdev.c
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@@ -2,30 +2,7 @@
#include <stdio.h>
#include "mmio.h"
#define BLKDEV_BASE 0x10015000
#define BLKDEV_ADDR BLKDEV_BASE
#define BLKDEV_OFFSET (BLKDEV_BASE + 8)
#define BLKDEV_LEN (BLKDEV_BASE + 12)
#define BLKDEV_WRITE (BLKDEV_BASE + 16)
#define BLKDEV_REQUEST (BLKDEV_BASE + 17)
#define BLKDEV_NREQUEST (BLKDEV_BASE + 18)
#define BLKDEV_COMPLETE (BLKDEV_BASE + 19)
#define BLKDEV_NCOMPLETE (BLKDEV_BASE + 20)
#define BLKDEV_NSECTORS (BLKDEV_BASE + 24)
#define BLKDEV_MAX_REQUEST_LENGTH (BLKDEV_BASE + 28)
#define BLKDEV_SECTOR_SIZE 512
#define BLKDEV_SECTOR_SHIFT 9
size_t blkdev_nsectors(void)
{
return reg_read32(BLKDEV_NSECTORS);
}
size_t blkdev_max_req_len(void)
{
return reg_read32(BLKDEV_MAX_REQUEST_LENGTH);
}
#include "blkdev.h"
void blkdev_read(void *addr, unsigned long offset, size_t nsectors)
{
@@ -38,12 +15,9 @@ void blkdev_read(void *addr, unsigned long offset, size_t nsectors)
printf("sending %d reads\n", ntags);
for (i = 0; i < ntags; i++) {
reg_write64(BLKDEV_ADDR, (unsigned long) addr);
reg_write32(BLKDEV_OFFSET, offset);
reg_write32(BLKDEV_LEN, nsectors_per_tag);
reg_write8(BLKDEV_WRITE, 0);
req_tag = reg_read8(BLKDEV_REQUEST);
req_tag = blkdev_send_request(
(unsigned long) addr, offset,
nsectors_per_tag, 0);
addr += (nsectors_per_tag << BLKDEV_SECTOR_SHIFT);
offset += nsectors_per_tag;
}
@@ -67,12 +41,9 @@ void blkdev_write(unsigned long offset, void *addr, size_t nsectors)
printf("sending %d writes\n", ntags);
for (i = 0; i < ntags; i++) {
reg_write64(BLKDEV_ADDR, (unsigned long) addr);
reg_write32(BLKDEV_OFFSET, offset);
reg_write32(BLKDEV_LEN, nsectors_per_tag);
reg_write8(BLKDEV_WRITE, 1);
req_tag = reg_read8(BLKDEV_REQUEST);
req_tag = blkdev_send_request(
(unsigned long) addr, offset,
nsectors_per_tag, 1);
addr += (nsectors_per_tag << BLKDEV_SECTOR_SHIFT);
offset += nsectors_per_tag;
}

38
tests/blkdev.h Normal file
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@@ -0,0 +1,38 @@
#define BLKDEV_BASE 0x10015000
#define BLKDEV_ADDR BLKDEV_BASE
#define BLKDEV_OFFSET (BLKDEV_BASE + 8)
#define BLKDEV_LEN (BLKDEV_BASE + 12)
#define BLKDEV_WRITE (BLKDEV_BASE + 16)
#define BLKDEV_REQUEST (BLKDEV_BASE + 17)
#define BLKDEV_NREQUEST (BLKDEV_BASE + 18)
#define BLKDEV_COMPLETE (BLKDEV_BASE + 19)
#define BLKDEV_NCOMPLETE (BLKDEV_BASE + 20)
#define BLKDEV_NSECTORS (BLKDEV_BASE + 24)
#define BLKDEV_MAX_REQUEST_LENGTH (BLKDEV_BASE + 28)
#define BLKDEV_SECTOR_SIZE 512
#define BLKDEV_SECTOR_SHIFT 9
static inline size_t blkdev_nsectors(void)
{
return reg_read32(BLKDEV_NSECTORS);
}
static inline size_t blkdev_max_req_len(void)
{
return reg_read32(BLKDEV_MAX_REQUEST_LENGTH);
}
static inline unsigned int blkdev_send_request(
unsigned long addr,
unsigned int offset,
unsigned int len,
unsigned char write)
{
reg_write64(BLKDEV_ADDR, addr);
reg_write32(BLKDEV_OFFSET, offset);
reg_write32(BLKDEV_LEN, len);
reg_write8(BLKDEV_WRITE, write);
asm volatile ("fence");
return reg_read8(BLKDEV_REQUEST);
}