Changeset 380 for trunk/hal/tsar_mips32/drivers

Timestamp:

Aug 14, 2017, 6:31:25 PM (7 years ago)

Author:

alain

Message:

Remove the generic kernel/kern/do_exception files to handle exceptions in HAL.
The HAL call only the vmm_handle_page_fault() function if required.

Location:

trunk/hal/tsar_mips32/drivers

Files:

• soclib_pic.c (modified) (1 diff)
• soclib_pic.h (modified) (2 diffs)

trunk/hal/tsar_mips32/drivers/soclib_pic.c

@@ -491 +491 @@
     uint32_t * base = soclib_pic_xcu_base();
 
-    // set period value in XCU
-    base[(XCU_PTI_PER << 5) | lid] = period;
+    // set period value in XCU (in cycles)
+    uint32_t cycles = period * SOCLIB_CYCLES_PER_MS * CONFIG_SCHED_TICK_MS_PERIOD;
+    base[(XCU_PTI_PER << 5) | lid] = cycles;
 
     // enable PTI in local XCU controller 

trunk/hal/tsar_mips32/drivers/soclib_pic.h

@@ -90 +90 @@
 #define SOCLIB_MAX_PTI         16 
 
+#define SOCLIB_CYCLES_PER_MS   1000    // for a SystemC virtual prototype 
+
 /******************************************************************************************
  * This define the registers offsets for the  external SOCLIB_IOPIC component. 
@@ -231 +233 @@
  * The <period> argument define the number of cycles between IRQs.
  ******************************************************************************************
- * @ period      : number of cycles between IRQs.
+ * @ period      : number of ticks between IRQs.
  *****************************************************************************************/
 void soclib_pic_enable_timer( uint32_t period );