89 lines
2.1 KiB
C
89 lines
2.1 KiB
C
/**
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* matmul_test - CIC-IEC 2026 Stage 3 Evaluation Program
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*
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* Uses the CDMA-to-matmul direct endpoint sequencer. The CDMA still owns the
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* external-memory traffic, while matmul A/B/C transfers use local wires instead
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* of the AXI crossbar.
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*/
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#include <stdint.h>
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#include <dma.h>
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/* UART 16550 direct access avoids the printf/newlib overhead on the hot path. */
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#define UART_THR (*(volatile unsigned char *)0xbf000000)
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#define UART_LSR (*(volatile unsigned char *)0xbf000005)
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#define LSR_THRE 0x20
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static inline void uart_tx(unsigned char c)
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{
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while (!(UART_LSR & LSR_THRE)) {
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}
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UART_THR = c;
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}
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static void uart_puts(const char *s)
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{
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while (*s) {
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uart_tx((unsigned char)*s++);
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}
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}
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static void uart_puthex(uint32_t val)
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{
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int i;
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for (i = 28; i >= 0; i -= 4) {
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unsigned char nibble = (unsigned char)((val >> i) & 0xF);
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uart_tx((unsigned char)(nibble < 10 ? ('0' + nibble) : ('a' + nibble - 10)));
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}
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}
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#ifndef MATMUL_GROUP_NUM
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#define MATMUL_GROUP_NUM 5000
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#endif
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unsigned long UART_BASE = 0xbf000000;
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#define EXTRAM_BASE_PHYS 0x1c400000u
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#define SRC_BASE_WORDS 0u
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#define DST_BASE_WORDS (SRC_BASE_WORDS + MATMUL_GROUP_NUM * 32u)
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#define EXTRAM_PHYS_AB(g) (EXTRAM_BASE_PHYS + (SRC_BASE_WORDS * 4u) + (uint32_t)(g) * 128u)
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#define EXTRAM_PHYS_C(g) (EXTRAM_BASE_PHYS + (DST_BASE_WORDS * 4u) + (uint32_t)(g) * 192u)
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#define MATMUL_BASE_UNCACHED 0xbf500000u
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#define MATMUL_CRC (*(volatile uint32_t *)(MATMUL_BASE_UNCACHED + 0x010u))
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int main(void)
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{
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uint32_t crc;
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if (MATMUL_GROUP_NUM <= 0) {
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return 0;
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}
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uart_puts("MATMUL_START\n");
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DMA_SEQ->STATUS = SEQ_DONE_BIT;
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DMA_SEQ->SRC_BASE = EXTRAM_PHYS_AB(0);
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DMA_SEQ->DST_BASE = EXTRAM_PHYS_C(0);
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DMA_SEQ->GROUPS = MATMUL_GROUP_NUM;
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DMA_SEQ->MAT_BASE = 0x1f500000u;
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DMA_SEQ->SRC_STRIDE = 128u;
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DMA_SEQ->DST_STRIDE = 192u;
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DMA_SEQ->CTRL = SEQ_START_BIT;
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while ((DMA_SEQ->STATUS & SEQ_DONE_BIT) == 0u) {
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}
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DMA_SEQ->STATUS = SEQ_DONE_BIT;
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crc = MATMUL_CRC;
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uart_puts("MATMUL_CRC32=");
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uart_puthex(crc);
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uart_puts("\nMATMUL_DONE\n");
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return 0;
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}
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