add second XSPN partition
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96de37dbc2
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@ -12,7 +12,8 @@ typedef void (*function_ptr_t) (void);
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//! Instance data for the PLIC.
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plic_instance_t g_plic;
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std::array<function_ptr_t,PLIC_NUM_INTERRUPTS> g_ext_interrupt_handlers;
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bool hw_interrupt{true};
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bool spn1_hw_interrupt{true};
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bool spn2_hw_interrupt{true};
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/*! \brief external interrupt handler
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@ -43,19 +44,26 @@ void configure_irq(size_t irq_num, function_ptr_t handler, unsigned char prio=1)
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PLIC_enable_interrupt(&g_plic, irq_num);
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}
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static void msi_interrupt_handler(){
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hw_interrupt = false;
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}
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void wait_for_interrupt() {
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void wait_for_spn1_interrupt() {
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// wait until HW is done
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if(hw_interrupt) {
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if(spn1_hw_interrupt) {
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do{
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asm("wfi");
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asm("nop");
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}while(hw_interrupt);
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}while(spn1_hw_interrupt);
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}
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hw_interrupt=true;
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spn1_hw_interrupt=true;
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}
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void wait_for_spn2_interrupt() {
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// wait until HW is done
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if(spn2_hw_interrupt) {
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do{
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asm("wfi");
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asm("nop");
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}while(spn2_hw_interrupt);
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}
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spn2_hw_interrupt=true;
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}
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/*!\brief initializes platform
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@ -77,7 +85,6 @@ void platform_init(){
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clear_csr(mie, MIP_MEIP);
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clear_csr(mie, MIP_MTIP);
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for (auto& h:g_ext_interrupt_handlers) h=no_interrupt_handler;
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configure_irq(2, msi_interrupt_handler);
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// Enable interrupts in general.
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set_csr(mstatus, MSTATUS_MIE);
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// Enable the Machine-External bit in MIE
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@ -3,21 +3,41 @@
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#include "init.h"
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#include "spn_checker_regs.h"
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using spn = spn_regs<0x90000000>;
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using spn_1 = spn_regs<0x90000000>;
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using spn_2 = spn_regs<0xC0000000>;
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using spn_checker = spn_checker_regs<0x10040000>;
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void run_xspn(int in_addr, int out_addr, int num_samples, int in_beats, int out_beats) {
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spn::mode_reg() = 0;
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spn::input_length_reg() = num_samples; // each sample consists of 5 uint8 values
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spn::input_addr_reg() = in_addr;
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spn::output_addr_reg() = out_addr;
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spn::num_of_in_beats_reg() = in_beats; // Number of AXI4 burst beats needed to load all input data
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spn::num_of_out_beats_reg() = out_beats; // Number of AXI4 burst beats needed to store all result data
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printf("Starting XSPN\n");
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spn::start_reg() = 1;
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void run_xspn1(int in_addr, int out_addr, int num_samples, int in_beats, int out_beats) {
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printf("Starting first XSPN instance\n");
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spn_1::mode_reg() = 0;
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spn_1::input_length_reg() = num_samples; // each sample consists of 5 uint8 values
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spn_1::input_addr_reg() = in_addr;
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spn_1::output_addr_reg() = out_addr;
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spn_1::num_of_in_beats_reg() = in_beats; // Number of AXI4 burst beats needed to load all input data
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spn_1::num_of_out_beats_reg() = out_beats; // Number of AXI4 burst beats needed to store all result data
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spn_1::start_reg() = 1;
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}
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void run_xspn2(int in_addr, int out_addr, int num_samples, int in_beats, int out_beats) {
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printf("Starting second XSPN instance\n");
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spn_2::mode_reg() = 0;
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spn_2::input_length_reg() = num_samples; // each sample consists of 5 uint8 values
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spn_2::input_addr_reg() = in_addr;
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spn_2::output_addr_reg() = out_addr;
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spn_2::num_of_in_beats_reg() = in_beats; // Number of AXI4 burst beats needed to load all input data
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spn_2::num_of_out_beats_reg() = out_beats; // Number of AXI4 burst beats needed to store all result data
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spn_2::start_reg() = 1;
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}
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static void spn1_interrupt_handler(){
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spn1_hw_interrupt = false;
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spn_1::interrupt_reg() = 1;
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}
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static void spn2_interrupt_handler(){
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spn2_hw_interrupt = false;
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spn_2::interrupt_reg() = 1;
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}
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/*! \brief main function
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*
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*/
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@ -25,13 +45,20 @@ int main() {
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platform_init();
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configure_irq(2, spn1_interrupt_handler);
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configure_irq(22, spn2_interrupt_handler);
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spn::mode_reg() = 1;
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spn::start_reg() = 1;
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wait_for_interrupt();
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spn::interrupt_reg() = 1;
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uint32_t readout = spn::readout_reg();
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printf("READOUT HW:0x%x\n", readout);
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spn_1::mode_reg() = 1;
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spn_1::start_reg() = 1;
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wait_for_spn1_interrupt();
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uint32_t readout = spn_1::readout_reg();
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printf("READOUT first HW instance:0x%x\n", readout);
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spn_2::mode_reg() = 1;
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spn_2::start_reg() = 1;
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wait_for_spn2_interrupt();
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uint32_t readout2 = spn_2::readout_reg();
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printf("READOUT second HW instance:0x%x\n", readout2);
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uint32_t axi_bytes = readout;
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axi_bytes = axi_bytes & 0xff;
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@ -42,24 +69,23 @@ int main() {
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uint32_t sample_bytes = readout;
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sample_bytes = sample_bytes >> 16;
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sample_bytes = sample_bytes / 8;
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printf("Sample Bytes: %d\n", sample_bytes);
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uint32_t result_bytes = 8;
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printf("Result Bytes: %d\n", result_bytes);
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const uint32_t amount_of_input_samples = 50000;
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uint32_t step = 50000;
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uint32_t iterations = 15;
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uint32_t iterations = 5;
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uint32_t in_beats = (step * sample_bytes) / axi_bytes;
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if (in_beats * axi_bytes < step * sample_bytes) in_beats++;
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uint32_t out_beats = (step * result_bytes) / axi_bytes;
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if (out_beats * axi_bytes < step * result_bytes) out_beats++;
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int in_addr = 0x20010000; // place input samples in the SPI memory
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int out_addr = 0x20510000;
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int in_addr = 0x20010000; // place input samples in the SPI memory
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int out_addr1 = 0x20510000;
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int out_addr2 = 0x20520000;
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// inject SPN input data
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spn_checker::input_addr_reg() = in_addr;
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@ -67,17 +93,17 @@ int main() {
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spn_checker::start_data_trans_reg() = 1;
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spn_checker::output_addr_reg() = out_addr;
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spn_checker::output_addr_reg() = out_addr1;
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for (int k = 0; k < iterations*step; k+=step) {
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run_xspn(in_addr, out_addr, step, in_beats, out_beats);
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wait_for_interrupt();
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run_xspn1(in_addr, out_addr1, step, in_beats, out_beats);
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run_xspn2(in_addr, out_addr2, step, in_beats, out_beats);
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wait_for_spn1_interrupt();
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wait_for_spn2_interrupt();
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printf("XSPN finished\n");
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spn_checker::offset_reg() = k;
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spn_checker::length_reg() = step;
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spn_checker::start_result_check_reg() = 1;
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spn::interrupt_reg() = 1;
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in_addr += step * sample_bytes; // 5 bytes in each sample
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if (k == amount_of_input_samples) {
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in_addr = 0x20010000;
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