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fix(sd): use heap_caps_alloc to maintain desc alignment

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armando
2025-09-23 01:15:33 +00:00
committed by Armando (Dou Yiwen)
parent ac3c7ddb6f
commit 70acf169e0
2 changed files with 3 additions and 14 deletions
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components/esp_driver_sdmmc/src/sd_host_sdmmc.c
+1 -12
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@@ -82,19 +82,8 @@ esp_err_t sd_host_create_sdmmc_controller(const sd_host_sdmmc_cfg_t *config, sd_
ESP_RETURN_ON_ERROR(ret, TAG, "no available sd host controller");
}
size_t alignment = 0;
size_t cache_alignment_bytes = 0;
ret = esp_cache_get_alignment(0, &cache_alignment_bytes);
assert(ret == ESP_OK);
if (cache_alignment_bytes != 0) {
alignment = cache_alignment_bytes;
} else {
alignment = 4;
}
ESP_LOGD(TAG, "size: %d, alignment: %d", sizeof(sdmmc_desc_t), alignment);
ctlr->dma_desc_num = config->dma_desc_num ? config->dma_desc_num : SD_HOST_SDMMC_DMA_DESC_CNT;
ctlr->dma_desc = heap_caps_aligned_calloc(alignment, 1, sizeof(sdmmc_desc_t) * ctlr->dma_desc_num, SD_HOST_SDMMC_DMA_ALLOC_CAPS);
ctlr->dma_desc = heap_caps_calloc(1, sizeof(sdmmc_desc_t) * ctlr->dma_desc_num, SD_HOST_SDMMC_DMA_ALLOC_CAPS);
ESP_LOGD(TAG, "ctlr->dma_desc addr: %p", ctlr->dma_desc);
ESP_RETURN_ON_FALSE(ctlr->dma_desc, ESP_ERR_NO_MEM, TAG, "no mem for dma descriptors");