Changeset 4512d7e in mainline for arch/sparc64

Timestamp:

2006-01-19T22:17:47Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

6461d67c

Parents:

64c44e8

Message:

New ASID management subsystem (initial work, more is required).
Some TLB invalidation changes.

Location:

arch/sparc64

Files:

• Makefile.inc (modified) (1 diff)
• include/mm/asid.h (modified) (1 diff)
• src/mm/tlb.c (modified) (1 diff)

arch/sparc64/Makefile.inc

@@ -52 +52 @@
 CONFIG_PAGE_HT = y
 
+## Compile with support for address space identifiers.
+#
+
+CONFIG_ASID = y
+
+
 ARCH_SOURCES = \
         arch/$(ARCH)/src/cpu/cpu.c \

arch/sparc64/include/mm/asid.h

@@ -37 +37 @@
 typedef __u16 asid_t;
 
-#define asid_get()      0
+#define ASID_MAX_ARCH   0x4095  /* 2^12 - 1 */
 
 #endif

arch/sparc64/src/mm/tlb.c

@@ -166 +166 @@
 }
 
-/** Invalidate all ITLB and DLTB entries for specified page in specified address space.
+/** Invalidate all ITLB and DTLB entries for specified page range in specified address space.
  *
  * @param asid Address Space ID.
- * @param page Page which to sweep out from ITLB and DTLB.
+ * @param page First page which to sweep out from ITLB and DTLB.
+ * @param cnt Number of ITLB and DTLB entries to invalidate.
  */
-void tlb_invalidate_page(asid_t asid, __address page)
+void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt)
 {
-        /* TODO: write asid to some Context register and encode the register in second parameter below. */
-        itlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, page);
-        dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, page);
+        int i;
+        
+        for (i = 0; i < cnt; i++) {
+                /* TODO: write asid to some Context register and encode the register in second parameter below. */
+                itlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, page + i * PAGE_SIZE);
+                dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, page + i * PAGE_SIZE);
+        }
 }