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refactor(gdma): move buffer aligment to buffer mount config

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This commit is contained in:
Chen Jichang
2025-10-15 15:40:39 +08:00
parent d5ce0e4757
commit 679c197185
11 changed files with 58 additions and 38 deletions
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components/esp_hw_support/test_apps/dma/main/test_gdma.c
+9 -5
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@@ -153,7 +153,7 @@ TEST_CASE("GDMA channel allocation", "[GDMA]")
}
static void test_gdma_config_link_list(gdma_channel_handle_t tx_chan, gdma_channel_handle_t rx_chan,
gdma_link_list_handle_t *tx_link_list, gdma_link_list_handle_t *rx_link_list, size_t sram_alignment, bool dma_link_in_ext_mem)
gdma_link_list_handle_t *tx_link_list, gdma_link_list_handle_t *rx_link_list, bool dma_link_in_ext_mem)
{
gdma_strategy_config_t strategy = {
@@ -173,7 +173,6 @@ static void test_gdma_config_link_list(gdma_channel_handle_t tx_chan, gdma_chann
// create DMA link list for TX channel (a singly link with 3 nodes)
gdma_link_list_config_t tx_link_list_config = {
.buffer_alignment = 1,
.item_alignment = 8, // 8-byte alignment required by the AXI-GDMA
.num_items = 3,
.flags = {
@@ -184,7 +183,6 @@ static void test_gdma_config_link_list(gdma_channel_handle_t tx_chan, gdma_chann
TEST_ESP_OK(gdma_new_link_list(&tx_link_list_config, tx_link_list));
// create DMA link list for RX channel
gdma_link_list_config_t rx_link_list_config = {
.buffer_alignment = sram_alignment, // RX buffer should be aligned to the cache line size, because we will do cache invalidate later
.item_alignment = 8, // 8-byte alignment required by the AXI-GDMA
.num_items = 5,
.flags = {
@@ -215,7 +213,7 @@ static void test_gdma_m2m_transaction(gdma_channel_handle_t tx_chan, gdma_channe
gdma_link_list_handle_t tx_link_list = NULL;
gdma_link_list_handle_t rx_link_list = NULL;
test_gdma_config_link_list(tx_chan, rx_chan, &tx_link_list, &rx_link_list, sram_alignment, dma_link_in_ext_mem);
test_gdma_config_link_list(tx_chan, rx_chan, &tx_link_list, &rx_link_list, dma_link_in_ext_mem);
// allocate the source buffer from SRAM
uint8_t *src_data = heap_caps_calloc(1, 128, MALLOC_CAP_DMA | MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
@@ -250,10 +248,12 @@ static void test_gdma_m2m_transaction(gdma_channel_handle_t tx_chan, gdma_channe
gdma_buffer_mount_config_t tx_buf_mount_config[] = {
[0] = {
.buffer = src_data,
.buffer_alignment = 1,
.length = 64,
},
[1] = {
.buffer = src_data + 64,
.buffer_alignment = 1,
.length = 64,
#if !SOC_DMA_CAN_ACCESS_FLASH
.flags = {
@@ -265,6 +265,7 @@ static void test_gdma_m2m_transaction(gdma_channel_handle_t tx_chan, gdma_channe
#if SOC_DMA_CAN_ACCESS_FLASH
[2] = {
.buffer = (void *)src_string,
.buffer_alignment = 1,
.length = src_string_len,
.flags = {
.mark_eof = true,
@@ -277,6 +278,7 @@ static void test_gdma_m2m_transaction(gdma_channel_handle_t tx_chan, gdma_channe
gdma_buffer_mount_config_t rx_buf_mount_config = {
.buffer = dst_data,
.buffer_alignment = sram_alignment, // RX buffer should be aligned to the cache line size, because we will do cache invalidate later
.length = 256,
};
TEST_ESP_OK(gdma_link_mount_buffers(rx_link_list, 0, &rx_buf_mount_config, 1, NULL));
@@ -408,7 +410,7 @@ static void test_gdma_m2m_unaligned_buffer_test(uint8_t *dst_data, uint8_t *src_
gdma_link_list_handle_t tx_link_list = NULL;
gdma_link_list_handle_t rx_link_list = NULL;
test_gdma_config_link_list(tx_chan, rx_chan, &tx_link_list, &rx_link_list, sram_alignment, false);
test_gdma_config_link_list(tx_chan, rx_chan, &tx_link_list, &rx_link_list, false);
// prepare the source data
for (int i = 0; i < data_length; i++) {
@@ -422,6 +424,7 @@ static void test_gdma_m2m_unaligned_buffer_test(uint8_t *dst_data, uint8_t *src_
gdma_buffer_mount_config_t tx_buf_mount_config[] = {
[0] = {
.buffer = src_data,
.buffer_alignment = 1,
.length = data_length,
.flags = {
.mark_eof = true,
@@ -437,6 +440,7 @@ static void test_gdma_m2m_unaligned_buffer_test(uint8_t *dst_data, uint8_t *src_
TEST_ESP_OK(esp_dma_split_rx_buffer_to_cache_aligned(dst_data + offset_len, data_length, &align_array, &stash_buffer));
for (int i = 0; i < 3; i++) {
rx_aligned_buf_mount_config[i].buffer = align_array.aligned_buffer[i].aligned_buffer;
rx_aligned_buf_mount_config[i].buffer_alignment = sram_alignment;
rx_aligned_buf_mount_config[i].length = align_array.aligned_buffer[i].length;
}
TEST_ESP_OK(gdma_link_mount_buffers(rx_link_list, 0, rx_aligned_buf_mount_config, 3, NULL));