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Merge branch 'bugfix/dis_interrupts_up_to_6_level_for_dport_wa_v3.1' into 'release/v3.1'

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esp32: Dis interrupts up to 5 lvl for DPORT (v3.1)

See merge request espressif/esp-idf!5715
This commit is contained in:
Jiang Jiang Jian 2019-08-11 16:55:39 +08:00
commit 30547ae02c
7 changed files with 190 additions and 6 deletions
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7
components/esp32/Kconfig
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@ -1130,6 +1130,13 @@ config ESP32_PHY_MAX_TX_POWER
endmenu # PHY
config ESP32_DPORT_DIS_INTERRUPT_LVL
int "Disable the interrupt level for the DPORT workarounds"
default 5
help
To prevent interrupting DPORT workarounds,
need to disable interrupt with a maximum used level in the system.
menu "Power Management"

2
components/esp32/dport_access.c
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@ -256,7 +256,7 @@ uint32_t IRAM_ATTR esp_dport_access_reg_read(uint32_t reg)
unsigned int intLvl;
__asm__ __volatile__ (\
"movi %[APB], "XTSTR(0x3ff40078)"\n"\
"rsil %[LVL], "XTSTR(3)"\n"\
"rsil %[LVL], "XTSTR(CONFIG_ESP32_DPORT_DIS_INTERRUPT_LVL)"\n"\
"l32i %[APB], %[APB], 0\n"\
"l32i %[REG], %[REG], 0\n"\
"wsr %[LVL], "XTSTR(PS)"\n"\

9
components/esp32/dport_panic_highint_hdl.S
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@ -31,9 +31,10 @@ Interrupt , a high-priority interrupt, is used for several things:
*/
#define L4_INTR_STACK_SIZE 8
#define L4_INTR_STACK_SIZE 12
#define L4_INTR_A2_OFFSET 0
#define L4_INTR_A3_OFFSET 4
#define L4_INTR_A4_OFFSET 8
.data
_l4_intr_stack:
.space L4_INTR_STACK_SIZE
@ -145,10 +146,11 @@ xt_highint4:
movi a0, (1<<ETS_DPORT_INUM)
wsr a0, INTCLEAR
/* Save A2, A3 so we can use those registers */
/* Save A2, A3, A4 so we can use those registers */
movi a0, _l4_intr_stack
s32i a2, a0, L4_INTR_A2_OFFSET
s32i a3, a0, L4_INTR_A3_OFFSET
s32i a4, a0, L4_INTR_A4_OFFSET
/* handle dport interrupt */
/* get CORE_ID */
@ -168,6 +170,7 @@ xt_highint4:
s32i a2, a0, 0 /* clear intr */
movi a0, 1 /* other cpu id */
3:
rsil a4, CONFIG_ESP32_DPORT_DIS_INTERRUPT_LVL /* disable nested iterrupt */
/* set and wait flag */
movi a2, dport_access_start
addx4 a2, a0, a2
@ -180,10 +183,12 @@ xt_highint4:
l32i a3, a2, 0
beqz a3, .check_dport_access_end
wsr a4, PS /* restore iterrupt level */
/* Done. Restore registers and return. */
movi a0, _l4_intr_stack
l32i a2, a0, L4_INTR_A2_OFFSET
l32i a3, a0, L4_INTR_A3_OFFSET
l32i a4, a0, L4_INTR_A4_OFFSET
rsync /* ensure register restored */
rsr a0, EXCSAVE_4 /* restore a0 */

2
components/esp32/include/esp_dport_access.h
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@ -41,7 +41,7 @@ void esp_dport_access_int_abort(void);
#else
#define DPORT_STALL_OTHER_CPU_START() esp_dport_access_stall_other_cpu_start()
#define DPORT_STALL_OTHER_CPU_END() esp_dport_access_stall_other_cpu_end()
#define DPORT_INTERRUPT_DISABLE() unsigned int intLvl = XTOS_SET_INTLEVEL(XCHAL_EXCM_LEVEL)
#define DPORT_INTERRUPT_DISABLE() unsigned int intLvl = XTOS_SET_INTLEVEL(CONFIG_ESP32_DPORT_DIS_INTERRUPT_LVL)
#define DPORT_INTERRUPT_RESTORE() XTOS_RESTORE_JUST_INTLEVEL(intLvl)
#endif

3
components/esp32/test/component.mk
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@ -4,7 +4,8 @@
COMPONENT_EXTRA_CLEAN := test_tjpgd_logo.h
COMPONENT_ADD_LDFLAGS = -Wl,--whole-archive -l$(COMPONENT_NAME) -Wl,--no-whole-archive
COMPONENT_ADD_LDFLAGS = -Wl,--whole-archive -l$(COMPONENT_NAME) -Wl,--no-whole-archive \
-u ld_include_test_dport_xt_highint5 \
COMPONENT_SRCDIRS := . test_vectors

93
components/esp32/test/test_dport.c
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@ -2,6 +2,8 @@
#include <esp_types.h>
#include <stdio.h>
#include <stdlib.h>
#include "xtensa/core-macros.h"
#include "xtensa/hal.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
@ -12,10 +14,13 @@
#include "soc/uart_reg.h"
#include "soc/dport_reg.h"
#include "soc/rtc.h"
#include "esp_intr_alloc.h"
#include "driver/timer.h"
#define MHZ (1000000)
static volatile bool exit_flag;
static bool dport_test_result;
static bool apb_test_result;
uint32_t volatile apb_intr_test_result;
static void accessDPORT(void *pvParameters)
{
@ -57,6 +62,7 @@ static void accessAPB(void *pvParameters)
void run_tasks(const char *task1_description, void (* task1_func)(void *), const char *task2_description, void (* task2_func)(void *), uint32_t delay_ms)
{
apb_intr_test_result = 1;
int i;
TaskHandle_t th[2];
xSemaphoreHandle exit_sema[2];
@ -92,7 +98,7 @@ void run_tasks(const char *task1_description, void (* task1_func)(void *), const
vSemaphoreDelete(exit_sema[i]);
}
}
TEST_ASSERT(dport_test_result == true && apb_test_result == true);
TEST_ASSERT(dport_test_result == true && apb_test_result == true && apb_intr_test_result == 1);
}
TEST_CASE("access DPORT and APB at same time", "[esp32]")
@ -319,3 +325,88 @@ TEST_CASE("BENCHMARK for DPORT access performance", "[freertos]")
}
BENCHMARK_END("_DPORT_REG_READ");
}
uint32_t xt_highint5_read_apb;
#ifndef CONFIG_FREERTOS_UNICORE
timer_isr_handle_t inth;
xSemaphoreHandle sync_sema;
static void init_hi_interrupt(void *arg)
{
printf("init hi_interrupt on CPU%d \n", xPortGetCoreID());
TEST_ESP_OK(esp_intr_alloc(ETS_INTERNAL_TIMER2_INTR_SOURCE, ESP_INTR_FLAG_LEVEL5 | ESP_INTR_FLAG_IRAM, NULL, NULL, &inth));
while (exit_flag == false);
esp_intr_free(inth);
printf("disable hi_interrupt on CPU%d \n", xPortGetCoreID());
vTaskDelete(NULL);
}
static void accessDPORT2_stall_other_cpu(void *pvParameters)
{
xSemaphoreHandle *sema = (xSemaphoreHandle *) pvParameters;
dport_test_result = true;
while (exit_flag == false) {
DPORT_STALL_OTHER_CPU_START();
XTHAL_SET_CCOMPARE(2, XTHAL_GET_CCOUNT());
xt_highint5_read_apb = 1;
for (int i = 0; i < 200; ++i) {
if (_DPORT_REG_READ(DPORT_DATE_REG) != _DPORT_REG_READ(DPORT_DATE_REG)) {
apb_test_result = false;
break;
}
}
xt_highint5_read_apb = 0;
DPORT_STALL_OTHER_CPU_END();
}
printf("accessDPORT2_stall_other_cpu finish\n");
xSemaphoreGive(*sema);
vTaskDelete(NULL);
}
TEST_CASE("Check stall workaround DPORT and Hi-interrupt", "[esp32]")
{
xt_highint5_read_apb = 0;
dport_test_result = false;
apb_test_result = true;
TEST_ASSERT(xTaskCreatePinnedToCore(&init_hi_interrupt, "init_hi_intr", 2048, NULL, 6, NULL, 1) == pdTRUE);
// Access DPORT(stall other cpu method) - CPU0
// STALL - CPU1
// Hi-interrupt - CPU1
run_tasks("accessDPORT2_stall_other_cpu", accessDPORT2_stall_other_cpu, " - ", NULL, 10000);
}
static void accessDPORT2(void *pvParameters)
{
xSemaphoreHandle *sema = (xSemaphoreHandle *) pvParameters;
dport_test_result = true;
TEST_ESP_OK(esp_intr_alloc(ETS_INTERNAL_TIMER2_INTR_SOURCE, ESP_INTR_FLAG_LEVEL5 | ESP_INTR_FLAG_IRAM, NULL, NULL, &inth));
while (exit_flag == false) {
XTHAL_SET_CCOMPARE(2, XTHAL_GET_CCOUNT() + 21);
for (int i = 0; i < 200; ++i) {
if (DPORT_REG_READ(DPORT_DATE_REG) != DPORT_REG_READ(DPORT_DATE_REG)) {
dport_test_result = false;
break;
}
}
}
esp_intr_free(inth);
printf("accessDPORT2 finish\n");
xSemaphoreGive(*sema);
vTaskDelete(NULL);
}
TEST_CASE("Check pre-read workaround DPORT and Hi-interrupt", "[esp32]")
{
xt_highint5_read_apb = 0;
dport_test_result = false;
apb_test_result = true;
// Access DPORT(pre-read method) - CPU1
// Hi-interrupt - CPU1
run_tasks("accessAPB", accessAPB, "accessDPORT2", accessDPORT2, 10000);
}
#endif // CONFIG_FREERTOS_UNICORE

80
components/esp32/test/test_dport_xt_highint5.S Normal file
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@ -0,0 +1,80 @@
#include <xtensa/coreasm.h>
#include <xtensa/corebits.h>
#include <xtensa/config/system.h>
#include "freertos/xtensa_context.h"
#include "sdkconfig.h"
#include "soc/soc.h"
#include "soc/dport_reg.h"
#ifndef CONFIG_FREERTOS_UNICORE
#define L5_INTR_STACK_SIZE 12
#define L5_INTR_A2_OFFSET 0
#define L5_INTR_A3_OFFSET 4
#define L5_INTR_A4_OFFSET 8
.data
_l5_intr_stack:
.space L5_INTR_STACK_SIZE
.section .iram1,"ax"
.global xt_highint5
.type xt_highint5,@function
.align 4
xt_highint5:
movi a0, xt_highint5_read_apb
l32i a0, a0, 0
bnez a0, .read_apb_reg
// Short interrupt
esync
rsr a0, CCOUNT
addi a0, a0, 27
wsr a0, CCOMPARE2
esync
rsr a0, EXCSAVE_5 // restore a0
rfi 5
// read APB reg 10 time.
.read_apb_reg:
movi a0, _l5_intr_stack
s32i a2, a0, L5_INTR_A2_OFFSET
s32i a3, a0, L5_INTR_A3_OFFSET
s32i a4, a0, L5_INTR_A4_OFFSET
movi a4, 10 // count of reading
movi a0, 0x3ff40078 // read APB reg
l32i a2, a0, 0
.loop_read_apb_reg:
l32i a3, a0, 0
bne a3, a2, .need_set_apb_test_result
addi a4, a4, -1
l32i a2, a0, 0
bnez a4, .loop_read_apb_reg
j 1f
.need_set_apb_test_result:
movi a0, apb_intr_test_result // set fail
movi a2, 0
s32i a2, a0, 0
memw
1:
movi a0, _l5_intr_stack
l32i a2, a0, L5_INTR_A2_OFFSET
l32i a3, a0, L5_INTR_A3_OFFSET
l32i a4, a0, L5_INTR_A4_OFFSET
rsync
.L_xt_highint5_exit:
rsr a0, EXCSAVE_5 // restore a0
rfi 5
/* The linker has no reason to link in this file; all symbols it exports are already defined
(weakly!) in the default int handler. Define a symbol here so we can use it to have the
linker inspect this anyway. */
.global ld_include_test_dport_xt_highint5
ld_include_test_dport_xt_highint5:
#endif // CONFIG_FREERTOS_UNICORE