Changeset 528 for trunk/kernel/mm

Timestamp:

Sep 21, 2018, 10:15:58 PM (6 years ago)

Author:

nicolas.van.phan@…

Message:

Change usage of y_max/x_max for iterating through clusters.

This is due to empty cluster (without memory or not CPU cluster),
like IO cluster of MIPS32 LETI architecture.

File:

• trunk/kernel/mm/vmm.c (modified) (1 diff)

trunk/kernel/mm/vmm.c

@@ -1387 +1387 @@
         uint32_t y_size  = LOCAL_CLUSTER->y_size;
         uint32_t y_width = LOCAL_CLUSTER->y_width;
-        uint32_t index   = vpn & ((x_size * y_size) - 1);
-        uint32_t x       = index / y_size;
-        uint32_t y       = index % y_size;
+        uint32_t index   = vpn & ((x_size * (y_size - 1)) - 1); // [FIXME]
+        uint32_t x       = index / (y_size - 1); // [FIXME]
+        uint32_t y       = index % (y_size - 1); // [FIXME]
         page_cxy         = (x<<y_width) + y;
     }