Changeset ff9f858 in mainline for arch/ia64

Timestamp:

2005-06-30T23:27:02Z (21 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

a1a03f9

Parents:

992bbb97

Message:

Generic 4-level page tables interface & implementation (review & test).
Implement more architecture dependant macros on IA-32.
Provide fake implementation on IA-64 and MIPS.
Convert map_page_to_frame() to use the new interface.
Move adjusted map_page_to_frame() from IA-32's arch/mm/page.c to the generic mm/page.c.

Location:

arch/ia64

Files:

• include/mm/page.h (modified) (1 diff)
• src/fake.s (modified) (2 diffs)

arch/ia64/include/mm/page.h

@@ -39 +39 @@
 #define page_arch_init()        ;
 
+/*
+ * Implementation of generic 4-level page table interface.
+ * TODO: this is a fake implementation provided to satisfy the compiler
+ */
+#define PTL0_INDEX_ARCH(vaddr)  0
+#define PTL1_INDEX_ARCH(vaddr)  0
+#define PTL2_INDEX_ARCH(vaddr)  0
+#define PTL3_INDEX_ARCH(vaddr)  0
+
+#define GET_PTL0_ADDRESS_ARCH()                 ((pte_t *) 0)
+#define GET_PTL1_ADDRESS_ARCH(ptl0, i)          ((pte_t *) 0)
+#define GET_PTL2_ADDRESS_ARCH(ptl1, i)          ((pte_t *) 0)
+#define GET_PTL3_ADDRESS_ARCH(ptl2, i)          ((pte_t *) 0)
+#define GET_FRAME_ADDRESS_ARCH(ptl3, i)         ((pte_t *) 0)
+
+#define SET_PTL0_ADDRESS_ARCH(ptl0)
+#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a)
+#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a)
+#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a)
+#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a)
+
+#define GET_PTL1_FLAGS_ARCH(ptl0, i)            0
+#define GET_PTL2_FLAGS_ARCH(ptl1, i)            0
+#define GET_PTL3_FLAGS_ARCH(ptl2, i)            0
+#define GET_FRAME_FLAGS_ARCH(ptl3, i)           0
+
+#define SET_PTL1_FLAGS_ARCH(ptl0, i, x)
+#define SET_PTL2_FLAGS_ARCH(ptl1, i, x)
+#define SET_PTL3_FLAGS_ARCH(ptl2, i, x)
+#define SET_FRAME_FLAGS_ARCH(ptl3, i, x)
+
+typedef __u64 pte_t;
+
 #endif

arch/ia64/src/fake.s

@@ -43 +43 @@
 .global cpu_sleep
 .global frame_arch_init
-.global map_page_to_frame
 
 before_thread_runs_arch:
@@ -59 +58 @@
 cpu_sleep:
 frame_arch_init:
-map_page_to_frame:
         br.ret.sptk.many b0