diff --git a/src/portable/synopsys/dwc2/dcd_dwc2.c b/src/portable/synopsys/dwc2/dcd_dwc2.c index fe67de8dc1..a6bb03b81e 100644 --- a/src/portable/synopsys/dwc2/dcd_dwc2.c +++ b/src/portable/synopsys/dwc2/dcd_dwc2.c @@ -67,6 +67,16 @@ static bool _sof_en; //-------------------------------------------------------------------- // DMA //-------------------------------------------------------------------- +// When DMA requires cache synchronization for memory +// Data synchronization: cache to memory +#ifndef dsync_c2m +#define dsync_c2m(_addr, _size) +#endif // dsync_c2m + +// Data synchronization: memory to cache +#ifndef dsync_m2c +#define dsync_m2c(_addr, _size) +#endif // dsync_m2c TU_ATTR_ALWAYS_INLINE static inline bool dma_device_enabled(const dwc2_regs_t* dwc2) { (void) dwc2; @@ -359,7 +369,7 @@ static void edpt_schedule_packets(uint8_t rhport, uint8_t const epnum, uint8_t c if(dma_device_enabled(dwc2)) { dep->diepdma = (uintptr_t)xfer->buffer; - + dsync_c2m(xfer->buffer, total_bytes); // For ISO endpoint set correct odd/even bit for next frame. if ((dep->diepctl & DIEPCTL_EPTYP) == DIEPCTL_EPTYP_0 && (XFER_CTL_BASE(epnum, dir))->interval == 1) { // Take odd/even bit from frame counter. @@ -397,6 +407,7 @@ static void edpt_schedule_packets(uint8_t rhport, uint8_t const epnum, uint8_t c if(dma_device_enabled(dwc2)) { dep->doepdma = (uintptr_t)xfer->buffer; + dsync_c2m(xfer->buffer, total_bytes); } dep->doepctl |= DOEPCTL_EPENA | DOEPCTL_CNAK; @@ -775,6 +786,7 @@ static void handle_epout_irq(uint8_t rhport) { if(dma_device_enabled(dwc2)) { dma_setup_prepare(rhport); + dsync_m2c((uint8_t*) _setup_packet, sizeof(_setup_packet)); } dcd_event_setup_received(rhport, (uint8_t*) _setup_packet, true); @@ -801,7 +813,7 @@ static void handle_epout_irq(uint8_t rhport) { if(epnum == 0 && xfer->total_len == 0) { dma_setup_prepare(rhport); } - + dsync_m2c(xfer->buffer, xfer->total_len); dcd_event_xfer_complete(rhport, epnum, xfer->total_len, XFER_RESULT_SUCCESS, true); } } else { diff --git a/src/portable/synopsys/dwc2/dwc2_esp32.h b/src/portable/synopsys/dwc2/dwc2_esp32.h index 42ab4b80f3..e5125519ef 100644 --- a/src/portable/synopsys/dwc2/dwc2_esp32.h +++ b/src/portable/synopsys/dwc2/dwc2_esp32.h @@ -39,6 +39,16 @@ #include "soc/periph_defs.h" #include "soc/usb_wrap_struct.h" +#if TU_CHECK_MCU(OPT_MCU_ESP32P4) +#if (CFG_TUD_DWC2_DMA && SOC_CACHE_INTERNAL_MEM_VIA_L1CACHE) +#include "hal/cache_hal.h" +#include "esp_cache.h" +#include "esp_log.h" +#define DWC2_ENABLE_MEM_CACHE 1 +#endif // SOC_CACHE_INTERNAL_MEM_VIA_L1CACHE +#endif // OPT_MCU_ESP32P4 + + #if TU_CHECK_MCU(OPT_MCU_ESP32S2, OPT_MCU_ESP32S3) #define DWC2_FS_REG_BASE 0x60080000UL #define DWC2_EP_MAX 7 @@ -111,6 +121,42 @@ TU_ATTR_ALWAYS_INLINE static inline void dwc2_phy_update(dwc2_regs_t* dwc2, uint // maybe usb_utmi_hal_disable() } +// MCU specific cache synchronization call +TU_ATTR_ALWAYS_INLINE static inline void dwc2_dcd_sync_cache_to_memory(void *addr, size_t size) { +#if DWC2_ENABLE_MEM_CACHE + ESP_EARLY_LOGV("dwc2_esp32", "cache to mem sync, addr 0x%"PRIx32", size %d", (uintptr_t)addr, size); + int flags = ESP_CACHE_MSYNC_FLAG_DIR_C2M | ESP_CACHE_MSYNC_FLAG_UNALIGNED; + if (addr != NULL && size) { + esp_err_t ret = esp_cache_msync(addr, size, flags); + assert(ret == ESP_OK); + } +#else + (void) addr; + (void) size; + // nothing to do +#endif // DWC2_ENABLE_MEM_CACHE +} + +TU_ATTR_ALWAYS_INLINE static inline void dwc2_dcd_sync_memory_to_cache(void *addr, size_t size) { +#if DWC2_ENABLE_MEM_CACHE + ESP_EARLY_LOGV("dwc2", "mem to cache sync, addr 0x%"PRIx32", size %d", (uintptr_t)addr, size); + int flags = ESP_CACHE_MSYNC_FLAG_DIR_M2C; + if (addr != NULL && size) { + // TODO: size should be multiply of CONFIG_CACHE_L1_CACHE_LINE_SIZE? + size = (size < CONFIG_CACHE_L1_CACHE_LINE_SIZE)? CONFIG_CACHE_L1_CACHE_LINE_SIZE : size; + esp_err_t ret = esp_cache_msync(addr, size, flags); + assert(ret == ESP_OK); + } +#else + (void) addr; + (void) size; + // nothing to do +#endif // DWC2_ENABLE_MEM_CACHE +} + +#define dsync_c2m(_addr, _size) dwc2_dcd_sync_cache_to_memory((_addr), (_size)) +#define dsync_m2c(_addr, _size) dwc2_dcd_sync_memory_to_cache((_addr), (_size)) + #ifdef __cplusplus } #endif