tests: drivers: uart: async_api: support DCache with nocache memory
Add support for running tests with DCache enabled & put DMA buffers in a nocache memory region to avoid coherency issues. Signed-off-by: Abderrahmane Jarmouni <abderrahmane.jarmouni-ext@st.com>
This commit is contained in:
Abderrahmane Jarmouni
Anas Nashif
parent
e783aafdd0
commit
fdb3457058
2 changed files with 93 additions and 3 deletions
21
tests/drivers/uart/uart_async_api/Kconfig
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21
tests/drivers/uart/uart_async_api/Kconfig
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@ -0,0 +1,21 @@
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# Copyright (c) 2024 STMicroelectronics
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#
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# SPDX-License-Identifier: Apache-2.0
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mainmenu "UART Async Test"
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source "Kconfig.zephyr"
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if DCACHE
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config DT_DEFINED_NOCACHE
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bool "Enable this if a nocache region is defined in devicetree"
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if DT_DEFINED_NOCACHE
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config DT_DEFINED_NOCACHE_NAME
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string "Name of the nocache region defined in devicetree (uppercase)"
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endif # DT_DEFINED_NOCACHE
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endif # DCACHE
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@ -1,11 +1,22 @@
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/*
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* Copyright (c) 2019 Nordic Semiconductor ASA
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* Copyright (c) 2019 Nordic Semiconductor ASA
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* Copyright (c) 2024 STMicroelectronics
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "test_uart.h"
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#if defined(CONFIG_DCACHE) && defined(CONFIG_DT_DEFINED_NOCACHE)
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#define __NOCACHE __attribute__ ((__section__(CONFIG_DT_DEFINED_NOCACHE_NAME)))
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#define NOCACHE_MEM 1
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#elif defined(CONFIG_DCACHE) && defined(CONFIG_NOCACHE_MEMORY)
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#define __NOCACHE __nocache
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#define NOCACHE_MEM 1
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#else
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#define NOCACHE_MEM 0
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#endif /* CONFIG_NOCACHE_MEMORY */
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K_SEM_DEFINE(tx_done, 0, 1);
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K_SEM_DEFINE(tx_aborted, 0, 1);
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K_SEM_DEFINE(rx_rdy, 0, 1);
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@ -79,14 +90,18 @@ static void uart_async_test_init(void)
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struct test_data {
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volatile uint32_t tx_aborted_count;
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uint8_t rx_first_buffer[10];
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__aligned(32) uint8_t rx_first_buffer[10];
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uint32_t recv_bytes_first_buffer;
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uint8_t rx_second_buffer[5];
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__aligned(32) uint8_t rx_second_buffer[5];
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uint32_t recv_bytes_second_buffer;
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bool supply_second_buffer;
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};
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#if NOCACHE_MEM
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static struct test_data tdata __used __NOCACHE;
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#else
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ZTEST_BMEM struct test_data tdata;
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#endif /* NOCACHE_MEM */
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static void test_single_read_callback(const struct device *dev,
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struct uart_event *evt, void *user_data)
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@ -308,8 +323,13 @@ ZTEST_USER(uart_async_multi_rx, test_multiple_rx_enable)
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tdata_check_recv_buffers(tx_buf, sizeof(tx_buf));
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}
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#if NOCACHE_MEM
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static __aligned(32) uint8_t chained_read_buf[2][8] __used __NOCACHE;
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static __aligned(32) uint8_t chained_cpy_buf[10] __used __NOCACHE;
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#else
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ZTEST_BMEM uint8_t chained_read_buf[2][8];
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ZTEST_BMEM uint8_t chained_cpy_buf[10];
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#endif /* NOCACHE_MEM */
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ZTEST_BMEM volatile uint8_t rx_data_idx;
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ZTEST_BMEM uint8_t rx_buf_idx;
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@ -358,7 +378,11 @@ static void *chained_read_setup(void)
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ZTEST_USER(uart_async_chain_read, test_chained_read)
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{
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#if NOCACHE_MEM
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static __aligned(32) uint8_t tx_buf[10] __used __NOCACHE;
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#else
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uint8_t tx_buf[10];
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#endif /* NOCACHE_MEM */
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int iter = 6;
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uint32_t rx_timeout_ms = 50;
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int err;
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@ -390,7 +414,11 @@ ZTEST_USER(uart_async_chain_read, test_chained_read)
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"RX_DISABLED timeout");
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}
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#if NOCACHE_MEM
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static __aligned(32) uint8_t double_buffer[2][12] __used __NOCACHE;
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#else
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ZTEST_BMEM uint8_t double_buffer[2][12];
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#endif /* NOCACHE_MEM */
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ZTEST_DMEM uint8_t *next_buf = double_buffer[1];
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static void test_double_buffer_callback(const struct device *dev,
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@ -431,7 +459,11 @@ static void *double_buffer_setup(void)
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ZTEST_USER(uart_async_double_buf, test_double_buffer)
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{
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#if NOCACHE_MEM
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static __aligned(32) uint8_t tx_buf[4] __used __NOCACHE;
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#else
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uint8_t tx_buf[4];
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#endif /* NOCACHE_MEM */
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zassert_equal(uart_rx_enable(uart_dev,
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double_buffer[0],
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@ -456,8 +488,13 @@ ZTEST_USER(uart_async_double_buf, test_double_buffer)
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"RX_DISABLED timeout");
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}
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#if NOCACHE_MEM
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static __aligned(32) uint8_t test_read_abort_rx_buf[2][100] __used __NOCACHE;
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static __aligned(32) uint8_t test_read_abort_read_buf[100] __used __NOCACHE;
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#else
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ZTEST_BMEM uint8_t test_read_abort_rx_buf[2][100];
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ZTEST_BMEM uint8_t test_read_abort_read_buf[100];
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#endif /* NOCACHE_MEM */
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ZTEST_BMEM int test_read_abort_rx_cnt;
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static void test_read_abort_callback(const struct device *dev,
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@ -526,8 +563,13 @@ static void *read_abort_setup(void)
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ZTEST_USER(uart_async_read_abort, test_read_abort)
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{
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#if NOCACHE_MEM
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static __aligned(32) uint8_t rx_buf[100] __used __NOCACHE;
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static __aligned(32) uint8_t tx_buf[100] __used __NOCACHE;
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#else
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uint8_t rx_buf[100];
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uint8_t tx_buf[100];
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#endif /* NOCACHE_MEM */
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memset(rx_buf, 0, sizeof(rx_buf));
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memset(tx_buf, 1, sizeof(tx_buf));
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@ -568,7 +610,11 @@ ZTEST_USER(uart_async_read_abort, test_read_abort)
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ZTEST_BMEM volatile size_t sent;
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ZTEST_BMEM volatile size_t received;
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#if NOCACHE_MEM
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static __aligned(32) uint8_t test_rx_buf[2][100] __used __NOCACHE;
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#else
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ZTEST_BMEM uint8_t test_rx_buf[2][100];
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#endif /* NOCACHE_MEM */
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static void test_write_abort_callback(const struct device *dev,
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struct uart_event *evt, void *user_data)
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@ -612,7 +658,11 @@ static void *write_abort_setup(void)
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ZTEST_USER(uart_async_write_abort, test_write_abort)
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{
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#if NOCACHE_MEM
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static __aligned(32) uint8_t tx_buf[100] __used __NOCACHE;
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#else
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uint8_t tx_buf[100];
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#endif /* NOCACHE_MEM */
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memset(test_rx_buf, 0, sizeof(test_rx_buf));
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memset(tx_buf, 1, sizeof(tx_buf));
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@ -681,8 +731,13 @@ static void *forever_timeout_setup(void)
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ZTEST_USER(uart_async_timeout, test_forever_timeout)
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{
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#if NOCACHE_MEM
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static __aligned(32) uint8_t rx_buf[100] __used __NOCACHE;
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static __aligned(32) uint8_t tx_buf[100] __used __NOCACHE;
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#else
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uint8_t rx_buf[100];
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uint8_t tx_buf[100];
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#endif /* NOCACHE_MEM */
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memset(rx_buf, 0, sizeof(rx_buf));
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memset(tx_buf, 1, sizeof(tx_buf));
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@ -715,7 +770,11 @@ ZTEST_USER(uart_async_timeout, test_forever_timeout)
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}
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#if NOCACHE_MEM
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const uint8_t chained_write_tx_bufs[2][10] = {"Message 1", "Message 2"};
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#else
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ZTEST_DMEM uint8_t chained_write_tx_bufs[2][10] = {"Message 1", "Message 2"};
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#endif /* NOCACHE_MEM */
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ZTEST_DMEM bool chained_write_next_buf = true;
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ZTEST_BMEM volatile uint8_t tx_sent;
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@ -761,7 +820,11 @@ static void *chained_write_setup(void)
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ZTEST_USER(uart_async_chain_write, test_chained_write)
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{
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#if NOCACHE_MEM
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static __aligned(32) uint8_t rx_buf[20] __used __NOCACHE;
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#else
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uint8_t rx_buf[20];
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#endif /* NOCACHE_MEM */
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memset(rx_buf, 0, sizeof(rx_buf));
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@ -787,9 +850,15 @@ ZTEST_USER(uart_async_chain_write, test_chained_write)
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"RX_DISABLED timeout");
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}
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#if NOCACHE_MEM
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static __aligned(32) uint8_t long_rx_buf[1024] __used __NOCACHE;
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static __aligned(32) uint8_t long_rx_buf2[1024] __used __NOCACHE;
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static __aligned(32) uint8_t long_tx_buf[1000] __used __NOCACHE;
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#else
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ZTEST_BMEM uint8_t long_rx_buf[1024];
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ZTEST_BMEM uint8_t long_rx_buf2[1024];
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ZTEST_BMEM uint8_t long_tx_buf[1000];
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#endif /* NOCACHE_MEM */
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ZTEST_BMEM volatile uint8_t evt_num;
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ZTEST_BMEM size_t long_received[2];
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