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Add interrupt allocation scheme / interrupt sharing. Also modifies drivers and examples. Also allows interrupts

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to be marked specifically as having a handler that's all in IRAM.
This commit is contained in:
Jeroen Domburg
2016-11-25 17:33:51 +08:00
parent 505282bab1
commit 655fd2986a
29 changed files with 1142 additions and 161 deletions
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11
components/spi_flash/cache_utils.c
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@@ -27,6 +27,7 @@
#include "sdkconfig.h"
#include "esp_ipc.h"
#include "esp_attr.h"
#include "esp_intr_alloc.h"
#include "esp_spi_flash.h"
#include "esp_log.h"
@@ -60,6 +61,8 @@ void IRAM_ATTR spi_flash_op_block_func(void* arg)
{
// Disable scheduler on this CPU
vTaskSuspendAll();
// Restore interrupts that aren't located in IRAM
esp_intr_noniram_disable();
uint32_t cpuid = (uint32_t) arg;
// Disable cache so that flash operation can start
spi_flash_disable_cache(cpuid, &s_flash_op_cache_state[cpuid]);
@@ -70,6 +73,8 @@ void IRAM_ATTR spi_flash_op_block_func(void* arg)
}
// Flash operation is complete, re-enable cache
spi_flash_restore_cache(cpuid, s_flash_op_cache_state[cpuid]);
// Restore interrupts that aren't located in IRAM
esp_intr_noniram_enable();
// Re-enable scheduler
xTaskResumeAll();
}
@@ -104,6 +109,8 @@ void IRAM_ATTR spi_flash_disable_interrupts_caches_and_other_cpu()
// occupied by highest priority task
assert(xPortGetCoreID() == cpuid);
}
// Kill interrupts that aren't located in IRAM
esp_intr_noniram_disable();
// Disable cache on this CPU as well
spi_flash_disable_cache(cpuid, &s_flash_op_cache_state[cpuid]);
}
@@ -130,6 +137,8 @@ void IRAM_ATTR spi_flash_enable_interrupts_caches_and_other_cpu()
}
// Release API lock
spi_flash_op_unlock();
// Re-enable non-iram interrupts
esp_intr_noniram_enable();
}
#else // CONFIG_FREERTOS_UNICORE
@@ -151,6 +160,7 @@ void spi_flash_op_unlock()
void IRAM_ATTR spi_flash_disable_interrupts_caches_and_other_cpu()
{
esp_intr_noniram_disable();
spi_flash_op_lock();
spi_flash_disable_cache(0, &s_flash_op_cache_state[0]);
}
@@ -159,6 +169,7 @@ void IRAM_ATTR spi_flash_enable_interrupts_caches_and_other_cpu()
{
spi_flash_restore_cache(0, s_flash_op_cache_state[0]);
spi_flash_op_unlock();
esp_intr_noniram_enable();
}
#endif // CONFIG_FREERTOS_UNICORE