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Merge pull request #1564 from cyyself/xdma_mmap_fix 

changed mmap to xdma_user instead of pci resource
This commit is contained in:
Sagar Karandikar 2023-06-15 13:27:20 -07:00 committed by GitHub
parent 94c544551a e94d0a807c
commit 40edbe860a
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 12 additions and 18 deletions
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30
sim/midas/src/main/cc/simif_xilinx_alveo_u250.cc
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@ -236,27 +236,10 @@ void simif_xilinx_alveo_u250_t::fpga_setup(uint16_t domain_id,
assert(ret >= 0); assert(ret >= 0);
fpga_pci_check_file_id(sysfs_name, pci_device_id); fpga_pci_check_file_id(sysfs_name, pci_device_id);
// open and memory map
snprintf(sysfs_name,
sizeof(sysfs_name),
"/sys/bus/pci/devices/" PCI_DEV_FMT "/resource%u",
domain_id,
bus_id,
device_id,
pf_id,
bar_id);
fd = open(sysfs_name, O_RDWR | O_SYNC);
assert(fd != -1);
bar0_base = mmap(0, bar0_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
assert(bar0_base != MAP_FAILED);
close(fd);
fd = -1;
// XDMA setup // XDMA setup
char device_file_name[256]; char device_file_name[256];
char device_file_name2[256]; char device_file_name2[256];
char user_file_name[256];
ret = snprintf(sysfs_name, ret = snprintf(sysfs_name,
sizeof(sysfs_name), sizeof(sysfs_name),
@ -284,6 +267,17 @@ void simif_xilinx_alveo_u250_t::fpga_setup(uint16_t domain_id,
assert(xdma_id != -1); assert(xdma_id != -1);
// open and memory map
sprintf(user_file_name, "/dev/xdma%d_user", xdma_id);
fd = open(user_file_name, O_RDWR | O_SYNC);
assert(fd != -1);
bar0_base = mmap(0, bar0_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
assert(bar0_base != MAP_FAILED);
close(fd);
fd = -1;
sprintf(device_file_name, "/dev/xdma%d_h2c_0", xdma_id); sprintf(device_file_name, "/dev/xdma%d_h2c_0", xdma_id);
printf("Using xdma write queue: %s\n", device_file_name); printf("Using xdma write queue: %s\n", device_file_name);
sprintf(device_file_name2, "/dev/xdma%d_c2h_0", xdma_id); sprintf(device_file_name2, "/dev/xdma%d_c2h_0", xdma_id);