commit 125429a1c089775b05d4d13739ee7fc72285079f
author Kristofer Jonsson <kristofer.jonsson@arm.com> Thu Aug 20 16:52:23 2020 +0200
committer Kristofer Jonsson <kristofer.jonsson@arm.com> Mon Aug 24 11:29:32 2020 +0200
tree e24a0310ef37ac93ebd624d2eb31afb0e6f1cab0
parent e2e70241aa9bb11093222d07b83176ebafeddae1

Base pointer offset and soft reset

Allow user to define a base pointer offset, if the CPU and the NPU have
address spaces offseted from each other.

Soft reset NPU before every inference.

Added log prints.

Change-Id: I98a746d20dc780fefa23ad68816f5ba2ba2e6c6e

src/ethosu_driver.c

diff --git a/src/ethosu_driver.c b/src/ethosu_driver.c
index 9d74980..f47d3f2 100644
--- a/src/ethosu_driver.c
+++ b/src/ethosu_driver.c
@@ -43,10 +43,20 @@
 void ethosu_irq_handler(void)
 {
     uint8_t irq_raised = 0;
+
+    LOG_DEBUG("Interrupt. status=0x%08x, qread=%d\n",
+              ethosu_read_reg(&ethosu_drv.dev, NPU_REG_STATUS),
+              ethosu_read_reg(&ethosu_drv.dev, NPU_REG_QREAD));
+
+    // Verify that interrupt has been raised
     (void)ethosu_is_irq_raised(&ethosu_drv.dev, &irq_raised);
     ASSERT(irq_raised == 1);
     irq_triggered = true;
+
+    // Clear interrupt
     (void)ethosu_clear_irq_status(&ethosu_drv.dev);
+
+    // Verify that interrupt has been successfully cleard
     (void)ethosu_is_irq_raised(&ethosu_drv.dev, &irq_raised);
     ASSERT(irq_raised == 0);
 }
@@ -280,8 +290,10 @@
     }
     int custom_data_32bit_size = (custom_data_size / BYTES_IN_32_BITS - CUSTOM_OPTION_LENGTH_32_BIT_WORD);
 
+    ethosu_soft_reset(&ethosu_drv.dev);
     ethosu_set_clock_and_power(&ethosu_drv.dev, ETHOSU_CLOCK_Q_ENABLE, ETHOSU_POWER_Q_DISABLE);
     ethosu_restore_pmu_config(&ethosu_drv.dev);
+
     while (data_ptr < (data_start_ptr + custom_data_32bit_size))
     {
         int ret = 0;
@@ -464,7 +476,7 @@
 {
     uint32_t qread     = 0;
     uint32_t cms_bytes = cms_length * BYTES_IN_32_BITS;
-    LOG_INFO("handle_command_stream cms_length %d\n", cms_length);
+    LOG_INFO("handle_command_stream: cmd_stream=%p, cms_length %d\n", cmd_stream, cms_length);
 
     if (0 != ((ptrdiff_t)cmd_stream & MASK_16_BYTE_ALIGN))
     {