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spi: fix the memory accessed while cache disabled issue in the bus lock when log level is verbose

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When CONFIG_LOG_DEFAULT_LEVEL is verbose, the ESP_(EARLY_)LOGx will try
to print with format string and tag out of the DRAM while the cache is
disabled. This commit puts the TAG into DRAM, and uses the
'ESP_DRAM_LOGx` to fix the cache miss bug.

Also fixes a LoadProhibited issue when last_dev is NULL.
This commit is contained in:
Michael (XIAO Xufeng) 2020-04-02 14:56:33 +08:00 committed by Ivan Grokhotkov
parent b1f0ffffc3
commit a0e66fef08
1 changed files with 6 additions and 4 deletions
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8
components/driver/spi_bus_lock.c
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@ -224,7 +224,7 @@ struct spi_bus_lock_dev_t {
uint32_t mask; ///< Bitwise OR-ed mask of the REQ, PEND, LOCK bits of this device
};
static const char TAG[] = "bus_lock";
DRAM_ATTR static const char TAG[] = "bus_lock";
#define LOCK_CHECK(a, str, ret_val, ...) \
if (!(a)) { \
@ -656,8 +656,10 @@ IRAM_ATTR bool spi_bus_lock_touch(spi_bus_lock_dev_handle_t dev_handle)
{
spi_bus_lock_dev_t* last_dev = dev_handle->parent->last_dev;
dev_handle->parent->last_dev = dev_handle;
ESP_EARLY_LOGD(TAG, "SPI dev changed from %d to %d",
if (last_dev) {
ESP_DRAM_LOGD(TAG, "SPI dev changed from %d to %d",
dev_lock_get_id(last_dev), dev_lock_get_id(dev_handle));
}
return (dev_handle != last_dev);
}
@ -679,7 +681,7 @@ IRAM_ATTR esp_err_t spi_bus_lock_acquire_start(spi_bus_lock_dev_t *dev_handle, T
if (err != ESP_OK) return err;
}
ESP_LOGV(TAG, "dev %d acquired.", dev_lock_get_id(dev_handle));
ESP_DRAM_LOGV(TAG, "dev %d acquired.", dev_lock_get_id(dev_handle));
BUS_LOCK_DEBUG_EXECUTE_CHECK(lock->acquiring_dev == dev_handle);
//When arrives at here, requests of this device should already be handled