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uniformize memory attributes

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Sergio R. Caprile committed 2025-10-10 11:07:31 -03:00
1 parent 967d746574
commit 07a0d1265b
10 files changed
+144 -96
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src/drivers/ra.c
+4 -8
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@@ -38,16 +38,12 @@ struct ra_edmac {
#define ETH_PKT_SIZE 1536 // Max frame size, multiple of 32
#define ETH_DESC_CNT 4 // Descriptors count
// TODO(): handle these in a portable compiler-independent CMSIS-friendly way
#define MG_16BYTE_ALIGNED __attribute__((aligned((16U))))
#define MG_32BYTE_ALIGNED __attribute__((aligned((32U))))
// Descriptors: 16-byte aligned
// Buffers: 32-byte aligned (27.3.1)
static volatile uint32_t s_rxdesc[ETH_DESC_CNT][4] MG_16BYTE_ALIGNED;
static volatile uint32_t s_txdesc[ETH_DESC_CNT][4] MG_16BYTE_ALIGNED;
static uint8_t s_rxbuf[ETH_DESC_CNT][ETH_PKT_SIZE] MG_32BYTE_ALIGNED;
static uint8_t s_txbuf[ETH_DESC_CNT][ETH_PKT_SIZE] MG_32BYTE_ALIGNED;
static volatile uint32_t s_rxdesc[ETH_DESC_CNT][4] MG_ETH_RAM MG_16BYTE_ALIGNED;
static volatile uint32_t s_txdesc[ETH_DESC_CNT][4] MG_ETH_RAM MG_16BYTE_ALIGNED;
static uint8_t s_rxbuf[ETH_DESC_CNT][ETH_PKT_SIZE] MG_ETH_RAM MG_32BYTE_ALIGNED;
static uint8_t s_txbuf[ETH_DESC_CNT][ETH_PKT_SIZE] MG_ETH_RAM MG_32BYTE_ALIGNED;
static struct mg_tcpip_if *s_ifp; // MIP interface
// fastest is 3 cycles (SUB + BNE) on a 3-stage pipeline or equivalent