Changeset dbb6886 in mainline for arch/sparc64/src/mm/tlb.c

Timestamp:

2005-12-13T22:53:26Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

8ad925c

Parents:

91ef0d95

Message:

sparc64 work.
Support for TLB Demap operations.
Add tlb_invalidate(), tlb_invalidate_asid() and tlb_invalidate_page() (latter two are broken as they ignore asid).

File:

• arch/sparc64/src/mm/tlb.c (modified) (3 diffs)

arch/sparc64/src/mm/tlb.c

@@ -30 +30 @@
 #include <mm/tlb.h>
 #include <print.h>
+#include <arch/types.h>
+#include <typedefs.h>
 
 void tlb_arch_init(void)
@@ -47 +49 @@
                 t.value = itlb_tag_read_read(i);
                 
-                printf("%d: va=%Q, context=%d, v=%d, size=%d, nfo=%d, ie=%d, soft2=%X, diag=%X, pa=%X, soft=%X, l=%d, cp=%d, cv=%d, e=%d, p=%d, w=%d, g=%d\n",
-                        i, t.va, t.context, d.v, d.size, d.nfo, d.ie, d.soft2, d.diag, d.pa, d.soft, d.l, d.cp, d.cv, d.e, d.p, d.w, d.g);
+                printf("%d: vpn=%Q, context=%d, v=%d, size=%d, nfo=%d, ie=%d, soft2=%X, diag=%X, pfn=%X, soft=%X, l=%d, cp=%d, cv=%d, e=%d, p=%d, w=%d, g=%d\n",
+                        i, t.vpn, t.context, d.v, d.size, d.nfo, d.ie, d.soft2, d.diag, d.pfn, d.soft, d.l, d.cp, d.cv, d.e, d.p, d.w, d.g);
         }
 
@@ -56 +58 @@
                 t.value = dtlb_tag_read_read(i);
                 
-                printf("%d: va=%Q, context=%d, v=%d, size=%d, nfo=%d, ie=%d, soft2=%X, diag=%X, pa=%X, soft=%X, l=%d, cp=%d, cv=%d, e=%d, p=%d, w=%d, g=%d\n",
-                        i, t.va, t.context, d.v, d.size, d.nfo, d.ie, d.soft2, d.diag, d.pa, d.soft, d.l, d.cp, d.cv, d.e, d.p, d.w, d.g);
+                printf("%d: vpn=%Q, context=%d, v=%d, size=%d, nfo=%d, ie=%d, soft2=%X, diag=%X, pfn=%X, soft=%X, l=%d, cp=%d, cv=%d, e=%d, p=%d, w=%d, g=%d\n",
+                        i, t.vpn, t.context, d.v, d.size, d.nfo, d.ie, d.soft2, d.diag, d.pfn, d.soft, d.l, d.cp, d.cv, d.e, d.p, d.w, d.g);
         }
 
 }
+
+/** Invalidate all unlocked ITLB and DTLB entries. */
+void tlb_invalidate_all(void)
+{
+        int i;
+        tlb_data_t d;
+        tlb_tag_read_reg_t t;
+
+        for (i = 0; i < ITLB_ENTRY_COUNT; i++) {
+                d.value = itlb_data_access_read(i);
+                if (!d.l) {
+                        printf("invalidating ");
+                        t.value = itlb_tag_read_read(i);
+                        d.v = false;
+                        itlb_tag_access_write(t.value);
+                        itlb_data_access_write(i, d.value);
+                }
+        }
+        
+        for (i = 0; i < DTLB_ENTRY_COUNT; i++) {
+                d.value = dtlb_data_access_read(i);
+                if (!d.l) {
+                        t.value = dtlb_tag_read_read(i);
+                        d.v = false;
+                        dtlb_tag_access_write(t.value);
+                        dtlb_data_access_write(i, d.value);
+                }
+        }
+        
+}
+
+/** Invalidate all ITLB and DTLB entries that belong to specified ASID (Context).
+ *
+ * @param asid Address Space ID.
+ */
+void tlb_invalidate_asid(asid_t asid)
+{
+        /* TODO: write asid to some Context register and encode the register in second parameter below. */
+        itlb_demap(TLB_DEMAP_CONTEXT, TLB_DEMAP_NUCLEUS, 0);
+        dtlb_demap(TLB_DEMAP_CONTEXT, TLB_DEMAP_NUCLEUS, 0);
+}
+
+/** Invalidate all ITLB and DLTB entries for specified page in specified address space.
+ *
+ * @param asid Address Space ID.
+ * @param page Page which to sweep out from ITLB and DTLB.
+ */
+void tlb_invalidate_page(asid_t asid, __address page)
+{
+        /* 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);
+}