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gdma: correct the iram placement logic

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This commit is contained in:
morris
2022-03-23 18:58:21 +08:00
parent 5f28db177d
commit d23c3fb314
2 changed files with 60 additions and 67 deletions
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121
components/driver/gdma.c
View File

@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -26,19 +26,17 @@
static const char *TAG = "gdma";
#if CONFIG_GDMA_ISR_IRAM_SAFE
#define GDMA_INTR_ALLOC_FLAGS (ESP_INTR_FLAG_IRAM | ESP_INTR_FLAG_INTRDISABLED)
#if CONFIG_GDMA_ISR_IRAM_SAFE || CONFIG_GDMA_CTRL_FUNC_IN_IRAM
#define GDMA_MEM_ALLOC_CAPS (MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT)
#else
#define GDMA_INTR_ALLOC_FLAGS ESP_INTR_FLAG_INTRDISABLED
#define GDMA_MEM_ALLOC_CAPS MALLOC_CAP_DEFAULT
#endif // CONFIG_GDMA_ISR_IRAM_SAFE
#endif
#if CONFIG_GDMA_CTRL_FUNC_IN_IRAM
#define GDMA_CTRL_FUNC_ATTR IRAM_ATTR
#if CONFIG_GDMA_ISR_IRAM_SAFE
#define GDMA_INTR_ALLOC_FLAGS (ESP_INTR_FLAG_IRAM | ESP_INTR_FLAG_INTRDISABLED)
#else
#define GDMA_CTRL_FUNC_ATTR
#endif // CONFIG_GDMA_CTRL_FUNC_IN_IRAM
#define GDMA_INTR_ALLOC_FLAGS ESP_INTR_FLAG_INTRDISABLED
#endif
#define GDMA_INVALID_PERIPH_TRIG (0x3F)
#define SEARCH_REQUEST_RX_CHANNEL (1 << 0)
@ -109,11 +107,9 @@ struct gdma_rx_channel_t {
};
static gdma_group_t *gdma_acquire_group_handle(int group_id);
static void gdma_release_group_handle(gdma_group_t *group);
static gdma_pair_t *gdma_acquire_pair_handle(gdma_group_t *group, int pair_id);
static void gdma_release_group_handle(gdma_group_t *group);
static void gdma_release_pair_handle(gdma_pair_t *pair);
static void gdma_uninstall_group(gdma_group_t *group);
static void gdma_uninstall_pair(gdma_pair_t *pair);
static esp_err_t gdma_del_tx_channel(gdma_channel_t *dma_channel);
static esp_err_t gdma_del_rx_channel(gdma_channel_t *dma_channel);
static esp_err_t gdma_install_rx_interrupt(gdma_rx_channel_t *rx_chan);
@ -161,27 +157,28 @@ esp_err_t gdma_new_channel(const gdma_channel_alloc_config_t *config, gdma_chann
for (int i = 0; i < SOC_GDMA_GROUPS && search_code; i++) { // loop to search group
group = gdma_acquire_group_handle(i);
for (int j = 0; j < SOC_GDMA_PAIRS_PER_GROUP && search_code && group; j++) { // loop to search pair
ESP_GOTO_ON_FALSE(group, ESP_ERR_NO_MEM, err, TAG, "no mem for group(%d)", i);
for (int j = 0; j < SOC_GDMA_PAIRS_PER_GROUP && search_code; j++) { // loop to search pair
pair = gdma_acquire_pair_handle(group, j);
if (pair) {
portENTER_CRITICAL(&pair->spinlock);
if (!(search_code & pair->occupy_code)) { // pair has suitable position for acquired channel(s)
pair->occupy_code |= search_code;
search_code = 0; // exit search loop
}
portEXIT_CRITICAL(&pair->spinlock);
if (!search_code) {
portENTER_CRITICAL(&group->spinlock);
group->pair_ref_counts[j]++; // channel obtains a reference to pair
portEXIT_CRITICAL(&group->spinlock);
}
ESP_GOTO_ON_FALSE(pair, ESP_ERR_NO_MEM, err, TAG, "no mem for pair(%d,%d)", i, j);
portENTER_CRITICAL(&pair->spinlock);
if (!(search_code & pair->occupy_code)) { // pair has suitable position for acquired channel(s)
pair->occupy_code |= search_code;
search_code = 0; // exit search loop
}
portEXIT_CRITICAL(&pair->spinlock);
if (search_code) {
gdma_release_pair_handle(pair);
pair = NULL;
}
gdma_release_pair_handle(pair);
} // loop used to search pair
gdma_release_group_handle(group);
if (search_code) {
gdma_release_group_handle(group);
group = NULL;
}
} // loop used to search group
ESP_GOTO_ON_FALSE(search_code == 0, ESP_ERR_NOT_FOUND, err, TAG, "no free gdma channel, search code=%d", search_code);
assert(pair && group); // pair and group handle shouldn't be NULL
search_done:
// register TX channel
if (alloc_tx_channel) {
@ -214,6 +211,12 @@ err:
if (alloc_rx_channel) {
free(alloc_rx_channel);
}
if (pair) {
gdma_release_pair_handle(pair);
}
if (group) {
gdma_release_group_handle(group);
}
return ret;
}
@ -386,9 +389,7 @@ esp_err_t gdma_register_tx_event_callbacks(gdma_channel_handle_t dma_chan, gdma_
ESP_GOTO_ON_FALSE(esp_ptr_in_iram(cbs->on_trans_eof), ESP_ERR_INVALID_ARG, err, TAG, "on_trans_eof not in IRAM");
}
if (user_data) {
ESP_GOTO_ON_FALSE(esp_ptr_in_dram(user_data) ||
esp_ptr_in_diram_dram(user_data) ||
esp_ptr_in_rtc_dram_fast(user_data), ESP_ERR_INVALID_ARG, err, TAG, "user context not in DRAM");
ESP_GOTO_ON_FALSE(esp_ptr_internal(user_data), ESP_ERR_INVALID_ARG, err, TAG, "user context not in internal RAM");
}
#endif // CONFIG_GDMA_ISR_IRAM_SAFE
@ -424,9 +425,7 @@ esp_err_t gdma_register_rx_event_callbacks(gdma_channel_handle_t dma_chan, gdma_
ESP_GOTO_ON_FALSE(esp_ptr_in_iram(cbs->on_recv_eof), ESP_ERR_INVALID_ARG, err, TAG, "on_recv_eof not in IRAM");
}
if (user_data) {
ESP_GOTO_ON_FALSE(esp_ptr_in_dram(user_data) ||
esp_ptr_in_diram_dram(user_data) ||
esp_ptr_in_rtc_dram_fast(user_data), ESP_ERR_INVALID_ARG, err, TAG, "user context not in DRAM");
ESP_GOTO_ON_FALSE(esp_ptr_internal(user_data), ESP_ERR_INVALID_ARG, err, TAG, "user context not in internal RAM");
}
#endif // CONFIG_GDMA_ISR_IRAM_SAFE
@ -447,7 +446,7 @@ err:
return ret;
}
GDMA_CTRL_FUNC_ATTR esp_err_t gdma_start(gdma_channel_handle_t dma_chan, intptr_t desc_base_addr)
esp_err_t gdma_start(gdma_channel_handle_t dma_chan, intptr_t desc_base_addr)
{
esp_err_t ret = ESP_OK;
gdma_pair_t *pair = NULL;
@ -468,7 +467,7 @@ err:
return ret;
}
GDMA_CTRL_FUNC_ATTR esp_err_t gdma_stop(gdma_channel_handle_t dma_chan)
esp_err_t gdma_stop(gdma_channel_handle_t dma_chan)
{
esp_err_t ret = ESP_OK;
gdma_pair_t *pair = NULL;
@ -487,7 +486,7 @@ err:
return ret;
}
GDMA_CTRL_FUNC_ATTR esp_err_t gdma_append(gdma_channel_handle_t dma_chan)
esp_err_t gdma_append(gdma_channel_handle_t dma_chan)
{
esp_err_t ret = ESP_OK;
gdma_pair_t *pair = NULL;
@ -506,7 +505,7 @@ err:
return ret;
}
GDMA_CTRL_FUNC_ATTR esp_err_t gdma_reset(gdma_channel_handle_t dma_chan)
esp_err_t gdma_reset(gdma_channel_handle_t dma_chan)
{
esp_err_t ret = ESP_OK;
gdma_pair_t *pair = NULL;
@ -525,7 +524,7 @@ err:
return ret;
}
static void gdma_uninstall_group(gdma_group_t *group)
static void gdma_release_group_handle(gdma_group_t *group)
{
int group_id = group->group_id;
bool do_deinitialize = false;
@ -581,14 +580,7 @@ out:
return group;
}
static void gdma_release_group_handle(gdma_group_t *group)
{
if (group) {
gdma_uninstall_group(group);
}
}
static void gdma_uninstall_pair(gdma_pair_t *pair)
static void gdma_release_pair_handle(gdma_pair_t *pair)
{
gdma_group_t *group = pair->group;
int pair_id = pair->pair_id;
@ -606,8 +598,7 @@ static void gdma_uninstall_pair(gdma_pair_t *pair)
if (do_deinitialize) {
free(pair);
ESP_LOGD(TAG, "del pair (%d,%d)", group->group_id, pair_id);
gdma_uninstall_group(group);
gdma_release_group_handle(group);
}
}
@ -646,17 +637,12 @@ out:
return pair;
}
static void gdma_release_pair_handle(gdma_pair_t *pair)
{
if (pair) {
gdma_uninstall_pair(pair);
}
}
static esp_err_t gdma_del_tx_channel(gdma_channel_t *dma_channel)
{
gdma_pair_t *pair = dma_channel->pair;
gdma_group_t *group = pair->group;
int pair_id = pair->pair_id;
int group_id = group->group_id;
gdma_tx_channel_t *tx_chan = __containerof(dma_channel, gdma_tx_channel_t, base);
portENTER_CRITICAL(&pair->spinlock);
pair->tx_chan = NULL;
@ -666,15 +652,16 @@ static esp_err_t gdma_del_tx_channel(gdma_channel_t *dma_channel)
if (dma_channel->intr) {
esp_intr_free(dma_channel->intr);
portENTER_CRITICAL(&pair->spinlock);
gdma_ll_tx_enable_interrupt(group->hal.dev, pair->pair_id, UINT32_MAX, false); // disable all interupt events
gdma_ll_tx_clear_interrupt_status(group->hal.dev, pair->pair_id, UINT32_MAX); // clear all pending events
gdma_ll_tx_enable_interrupt(group->hal.dev, pair_id, UINT32_MAX, false); // disable all interupt events
gdma_ll_tx_clear_interrupt_status(group->hal.dev, pair_id, UINT32_MAX); // clear all pending events
portEXIT_CRITICAL(&pair->spinlock);
ESP_LOGD(TAG, "uninstall interrupt service for tx channel (%d,%d)", group->group_id, pair->pair_id);
ESP_LOGD(TAG, "uninstall interrupt service for tx channel (%d,%d)", group_id, pair_id);
}
ESP_LOGD(TAG, "del tx channel (%d,%d)", group->group_id, pair->pair_id);
free(tx_chan);
gdma_uninstall_pair(pair);
ESP_LOGD(TAG, "del tx channel (%d,%d)", group_id, pair_id);
// channel has a reference on pair, release it now
gdma_release_pair_handle(pair);
return ESP_OK;
}
@ -682,6 +669,8 @@ static esp_err_t gdma_del_rx_channel(gdma_channel_t *dma_channel)
{
gdma_pair_t *pair = dma_channel->pair;
gdma_group_t *group = pair->group;
int pair_id = pair->pair_id;
int group_id = group->group_id;
gdma_rx_channel_t *rx_chan = __containerof(dma_channel, gdma_rx_channel_t, base);
portENTER_CRITICAL(&pair->spinlock);
pair->rx_chan = NULL;
@ -691,15 +680,15 @@ static esp_err_t gdma_del_rx_channel(gdma_channel_t *dma_channel)
if (dma_channel->intr) {
esp_intr_free(dma_channel->intr);
portENTER_CRITICAL(&pair->spinlock);
gdma_ll_rx_enable_interrupt(group->hal.dev, pair->pair_id, UINT32_MAX, false); // disable all interupt events
gdma_ll_rx_clear_interrupt_status(group->hal.dev, pair->pair_id, UINT32_MAX); // clear all pending events
gdma_ll_rx_enable_interrupt(group->hal.dev, pair_id, UINT32_MAX, false); // disable all interupt events
gdma_ll_rx_clear_interrupt_status(group->hal.dev, pair_id, UINT32_MAX); // clear all pending events
portEXIT_CRITICAL(&pair->spinlock);
ESP_LOGD(TAG, "uninstall interrupt service for rx channel (%d,%d)", group->group_id, pair->pair_id);
ESP_LOGD(TAG, "uninstall interrupt service for rx channel (%d,%d)", group_id, pair_id);
}
ESP_LOGD(TAG, "del rx channel (%d,%d)", group->group_id, pair->pair_id);
free(rx_chan);
gdma_uninstall_pair(pair);
ESP_LOGD(TAG, "del rx channel (%d,%d)", group_id, pair_id);
gdma_release_pair_handle(pair);
return ESP_OK;
}

6
components/driver/linker.lf
View File

@ -1,4 +1,3 @@
[mapping:driver]
archive: libdriver.a
entries:
@ -7,3 +6,8 @@ entries:
# placed in flash.
if TWAI_ISR_IN_IRAM = y && (TWAI_ERRATA_FIX_RX_FRAME_INVALID = y || TWAI_ERRATA_FIX_RX_FIFO_CORRUPT = y):
periph_ctrl: periph_module_reset (noflash)
if GDMA_CTRL_FUNC_IN_IRAM = y:
gdma: gdma_start (noflash)
gdma: gdma_stop (noflash)
gdma: gdma_append (noflash)
gdma: gdma_reset (noflash)