Optimize matmul CRC-only path

sdk/axi_ram.mif

@@ -52,7 +52,7 @@
 00000011100000000110000000001101
 00000100000000000000000110101100
 00011100000000000000000000101100
-00000010101010001011000110001100
+00000010101001111011000110001100
 00011100000000000001000000001101
 00000010101111001001000110101101
 00011100000000000001000000001110
@@ -94,7 +94,7 @@
 00000000000101010000000000001110
 00101001000000000001000110101110
 00011100000000000000000000001100
-00000010100010100001000110001100
+00000010100010010001000110001100
 00000100000000000011000000101100
 00000011100000000000010000001101
 00000100000000010001000000101101
@@ -158,27 +158,20 @@
 00101000000000000000000111101100
 01011111111111111110000110000000
 00010101011111101010000000001100
-00000011100000000100000110001111
-00101001100000000000000111100000
-00000010100000000101100000010010
+00000011100000000100000110010000
+00101001100000000000001000000000
+00000010100000000101100000001110
 00000011100000000001000110001101
-00101001100000000000000110110010
-00010100001110001000000000010001
-00000011100000001000000110010000
-00010100001110001001001110001110
-00101001100000000000001000010001
-00000011100100000000000111001110
-00000011100000001001000110000101
+00101001100000000000000110101110
+00010100001110001000000000000100
 00010100000000000000000000101111
-00101001100000000000000010101110
-00000011100000001010000110000100
+00000011100000001000000110010100
+00101001100000000000001010000100
+00000011100000001010000110010011
 00000011100011100010000111101111
-00101001100000000000000010001111
-00000011100000001011000110010011
-00000010100000100000000000010100
-00101001100000000000001001110100
-00000011100000001100000110010001
-00000010100000110000000000010010
+00101001100000000000001001101111
+00000011100000001011000110010001
+00000010100000100000000000010010
 00000010100001000000000000010000
 00101001100000000000001000110010
 00010101011111101010000000001110
@@ -193,7 +186,7 @@
 00010101011111100000000000010000
 00000010100000010011010000001100
 00011100000000000001000000001111
-00000010101101000010000111101111
+00000010101101001001000111101111
 00000011100000000001011000001101
 00101001100000000011000001101100
 00101010000000000011000001101110
@@ -209,7 +202,6 @@
 00000010100000000010010000010011
 00000010101111111111000000010010
 00000011100000000001011000001101
-00000011010000000000000000000000
 00000000000101111011101000101100
 00000011010000000011110110001100
 00000010100000010101110110001111
@@ -222,9 +214,9 @@
 00000010101111111111000111001110
 01011111111111111101100111010010
 00010101011111100000000000010000
-00000010100000000011010000001100
+00000010100000000010100000001100
 00011100000000000001000000001111
-00000010101100100111000111101111
+00000010101100101111000111101111
 00000011100000000001011000001101
 00101001100000000011000001101100
 00101010000000000011000001101110
@@ -246,14 +238,6 @@
 00000000000000000000000000000000
 00000000000000000000000000000000
 00000000000000000000000000000000
-00000000000000000000000000000000
-00000000000000000000000000000000
-00000000000000000000000000000000
-00000000000000000000000000000000
-00000000000000000000000000000000
-00000000000000000000000000000000
-00000000000000000000000000000000
-00000000000000000000000000000000
 00000010101111100001000001100011
 00101001100000011110000001100001
 00101001100000011101000001100010
@@ -705,15 +689,15 @@
 01001101010101000100000101001101
 01010011010111110100110001010101
 01010100010100100100000101010100
-00000000000000000000101000001101
+00000000000000000000000000001010
 01001101010101000100000101001101
 01000011010111110100110001010101
 00110010001100110100001101010010
 00000000000000000000000000111101
-01000001010011010000101000001101
-01001100010101010100110101010100
-01001110010011110100010001011111
-00000000000010100000110101000101
+01010100010000010100110100001010
+01011111010011000101010101001101
+01000101010011100100111101000100
+00000000000000000000000000001010
 10111111000000000000000000000000
 00000000000000000000000000000000
 00000000000000000000000000000000

sdk/software/examples/asm/user-sample.c

@@ -1,7 +1,7 @@
 /**
  * user-sample - CIC-IEC 2026 Stage 3 Evaluation Program
  *
- * Matmul AXI-master path.
+ * Matmul AXI-master CRC-only path.
  */
 
 #include <dma.h>
@@ -41,12 +41,8 @@ unsigned long UART_BASE              = 0xbf000000;
 #define EXTRAM_BASE_UNCACHED (0xA0000000 | (EXTRAM_BASE_PHYS & 0x1FFFFFFF))
 
 #define SRC_BASE_WORDS    0
-#define DST_BASE_WORDS    (SRC_BASE_WORDS + MATMUL_GROUP_NUM * 32)
-#define RESULT_WORDS      (MATMUL_GROUP_NUM * 48)
-
-/* ExtRAM Physical Addresses for DMA */
+/* ExtRAM physical address for matrix inputs. */
 #define EXTRAM_PHYS_AB(g) (EXTRAM_BASE_PHYS + (SRC_BASE_WORDS * 4) + (g) * 128)
-#define EXTRAM_PHYS_C(g)  (EXTRAM_BASE_PHYS + (DST_BASE_WORDS * 4) + (g) * 192)
 
 /* ─── MATMUL IP registers (Ping-Pong Memory Map) ──────────────────── */
 #define MATMUL_BASE_PHYS     0x1f500000
@@ -55,10 +51,8 @@ unsigned long UART_BASE              = 0xbf000000;
 #define MATMUL_CTRL       (MATMUL_BASE_UNCACHED + 0x000)
 #define MATMUL_STATUS     (MATMUL_BASE_UNCACHED + 0x004)
 #define MATMUL_DMA_SRC_BASE   (MATMUL_BASE_UNCACHED + 0x020)
-#define MATMUL_DMA_DST_BASE   (MATMUL_BASE_UNCACHED + 0x024)
 #define MATMUL_DMA_GROUPS     (MATMUL_BASE_UNCACHED + 0x028)
 #define MATMUL_DMA_SRC_STRIDE (MATMUL_BASE_UNCACHED + 0x02C)
-#define MATMUL_DMA_DST_STRIDE (MATMUL_BASE_UNCACHED + 0x030)
 
 #define CTRL_START_B0     0x1
 #define CTRL_START_B1     0x2
@@ -92,10 +86,8 @@ int main(void)
     *(volatile unsigned int *)MATMUL_CRC = 0;
     *mat_status = STATUS_DMA_DONE | STATUS_DONE | STATUS_ERROR;
     *(volatile unsigned int *)MATMUL_DMA_SRC_BASE = EXTRAM_PHYS_AB(0);
-    *(volatile unsigned int *)MATMUL_DMA_DST_BASE = EXTRAM_PHYS_C(0);
     *(volatile unsigned int *)MATMUL_DMA_GROUPS = MATMUL_GROUP_NUM;
     *(volatile unsigned int *)MATMUL_DMA_SRC_STRIDE = 128;
-    *(volatile unsigned int *)MATMUL_DMA_DST_STRIDE = 192;
     *mat_ctrl = CTRL_DMA_START;
     while (!(*mat_status & STATUS_DMA_DONE)) {}
     *mat_status = STATUS_DMA_DONE;