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fix(dma): also consider buffer alignment when calculating the DMA nodes

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Closes https://github.com/espressif/esp-idf/issues/15228
This commit is contained in:
morris
2025-01-24 18:02:57 +08:00
parent 409af75a93
commit cfca6c606e
10 changed files with 79 additions and 38 deletions
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components/esp_driver_bitscrambler/src/bitscrambler_loopback.c
+2 -1
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@@ -9,6 +9,7 @@
#include "driver/bitscrambler.h"
#include "esp_private/gdma.h"
#include "esp_private/gdma_link.h"
#include "esp_private/esp_dma_utils.h"
#include "esp_private/bitscrambler.h"
#include "hal/dma_types.h"
#include "hal/cache_hal.h"
@@ -98,7 +99,7 @@ esp_err_t bitscrambler_loopback_create(bitscrambler_handle_t *handle, int attach
}
bs->max_transfer_sz_bytes = max_transfer_sz_bytes;
int desc_ct = (max_transfer_sz_bytes + DMA_DESCRIPTOR_BUFFER_MAX_SIZE_4B_ALIGNED - 1) / DMA_DESCRIPTOR_BUFFER_MAX_SIZE_4B_ALIGNED;
size_t desc_ct = esp_dma_calculate_node_count(max_transfer_sz_bytes, 4, DMA_DESCRIPTOR_BUFFER_MAX_SIZE);
int bus = g_bitscrambler_periph_desc[attach_to].bus;
#ifdef SOC_GDMA_BUS_AXI
size_t align = (bus == SOC_GDMA_BUS_AXI) ? 8 : 4;