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Add option to F1 driver to load an AGFI (#1434) 

If the `+agfi=` option points to an AGFI, the image is loaded before the simulation starts.
This commit is contained in:
Nandor Licker 2023-02-21 19:00:34 +02:00 committed by GitHub
parent 797e6e41bc
commit 84b1c3f900
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 50 additions and 14 deletions
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64
sim/midas/src/main/cc/simif_f1.cc
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@ -22,7 +22,7 @@ public:
uint32_t is_write_ready();
void check_rc(int rc, char *infostr);
void fpga_shutdown();
void fpga_setup(int slot_id);
void fpga_setup(int slot_id, const std::string &agfi);
CPUManagedStreamIO &get_cpu_managed_stream_io() override { return *this; }
@ -35,8 +35,6 @@ private:
return config.cpu_managed->beat_bytes();
}
// int rc;
int slot_id;
int edma_write_fd;
int edma_read_fd;
pci_bar_handle_t pci_bar_handle;
@ -45,18 +43,29 @@ private:
simif_f1_t::simif_f1_t(const TargetConfig &config,
const std::vector<std::string> &args)
: simif_t(config) {
slot_id = -1;
int slot_id = -1;
std::string agfi;
for (auto &arg : args) {
if (arg.find("+slotid=") == 0) {
slot_id = atoi((arg.c_str()) + 8);
continue;
}
if (arg.find("+agfi=") == 0) {
agfi += arg.c_str() + 6;
if (agfi.find("agfi-") != 0 && agfi.size() != 22) {
throw std::runtime_error("invalid AGFI: " + agfi);
}
continue;
}
}
if (slot_id == -1) {
fprintf(stderr, "Slot ID not specified. Assuming Slot 0\n");
slot_id = 0;
}
fpga_setup(slot_id);
fpga_setup(slot_id, agfi);
}
void simif_f1_t::check_rc(int rc, char *infostr) {
@ -80,19 +89,46 @@ void simif_f1_t::fpga_shutdown() {
close(edma_read_fd);
}
void simif_f1_t::fpga_setup(int slot_id) {
/*
* pci_vendor_id and pci_device_id values below are Amazon's and available
* to use for a given FPGA slot.
* Users may replace these with their own if allocated to them by PCI SIG
*/
uint16_t pci_vendor_id = 0x1D0F; /* Amazon PCI Vendor ID */
uint16_t pci_device_id =
0xF000; /* PCI Device ID preassigned by Amazon for F1 applications */
/**
* Amazon PCI Vendor ID.
*/
constexpr uint16_t pci_vendor_id = 0x1D0F;
/**
* Amazon PCI Device ID pre-assigned by for F1 applications.
*/
constexpr uint16_t pci_device_id = 0xF000;
void simif_f1_t::fpga_setup(int slot_id, const std::string &agfi) {
int rc = fpga_mgmt_init();
check_rc(rc, "fpga_mgmt_init FAILED");
// If an AGFI was specified, re-load the image.
if (!agfi.empty()) {
fprintf(stderr, "Flashing AGFI: %s\n", agfi.c_str());
// Clear the existing image. Wait up to 10 seconds.
rc = fpga_mgmt_clear_local_image_sync(slot_id, 10, 1000, nullptr);
check_rc(rc, "Cannot clear image");
// Load the image.
std::unique_ptr<char[]> data(new char[agfi.size() + 1]);
memcpy(data.get(), agfi.c_str(), agfi.size() + 1);
rc = fpga_mgmt_load_local_image(slot_id, data.get());
check_rc(rc, "Cannot load AGFI");
// Wait and poll as long as the slot is busy.
int status;
do {
sleep(1);
struct fpga_mgmt_image_info info = {0};
rc = fpga_mgmt_describe_local_image(slot_id, &info, 0);
check_rc(rc, "Unable to get AFI information from slot.");
status = info.status;
} while (status == FPGA_STATUS_BUSY);
}
/* check AFI status */
struct fpga_mgmt_image_info info = {0};