powerpc: Free up some CPU feature bits by moving out MMU-related features

[uclinux-h8/linux.git] / arch / powerpc / include / asm / mmu.h

diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index bb40a06..a39304b 100644 (file)
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -70,6 +70,54 @@
  */
 #define MMU_FTR_USE_PAIRED_MAS         ASM_CONST(0x01000000)
 
+/* MMU is SLB-based
+ */
+#define MMU_FTR_SLB                    ASM_CONST(0x02000000)
+
+/* Support 16M large pages
+ */
+#define MMU_FTR_16M_PAGE               ASM_CONST(0x04000000)
+
+/* Supports TLBIEL variant
+ */
+#define MMU_FTR_TLBIEL                 ASM_CONST(0x08000000)
+
+/* Supports tlbies w/o locking
+ */
+#define MMU_FTR_LOCKLESS_TLBIE         ASM_CONST(0x10000000)
+
+/* Large pages can be marked CI
+ */
+#define MMU_FTR_CI_LARGE_PAGE          ASM_CONST(0x20000000)
+
+/* 1T segments available
+ */
+#define MMU_FTR_1T_SEGMENT             ASM_CONST(0x40000000)
+
+/* Doesn't support the B bit (1T segment) in SLBIE
+ */
+#define MMU_FTR_NO_SLBIE_B             ASM_CONST(0x80000000)
+
+/* MMU feature bit sets for various CPUs */
+#define MMU_FTRS_DEFAULT_HPTE_ARCH_V2  \
+       MMU_FTR_HPTE_TABLE | MMU_FTR_PPCAS_ARCH_V2
+#define MMU_FTRS_POWER4                MMU_FTRS_DEFAULT_HPTE_ARCH_V2
+#define MMU_FTRS_PPC970                MMU_FTRS_POWER4
+#define MMU_FTRS_POWER5                MMU_FTRS_POWER4 | MMU_FTR_LOCKLESS_TLBIE
+#define MMU_FTRS_POWER6                MMU_FTRS_POWER4 | MMU_FTR_LOCKLESS_TLBIE
+#define MMU_FTRS_POWER7                MMU_FTRS_POWER4 | MMU_FTR_LOCKLESS_TLBIE | \
+                               MMU_FTR_TLBIE_206
+#define MMU_FTRS_CELL          MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \
+                               MMU_FTR_CI_LARGE_PAGE
+#define MMU_FTRS_PA6T          MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \
+                               MMU_FTR_CI_LARGE_PAGE | MMU_FTR_NO_SLBIE_B
+#define MMU_FTRS_A2            MMU_FTR_TYPE_3E | MMU_FTR_USE_TLBILX | \
+                               MMU_FTR_USE_TLBIVAX_BCAST | \
+                               MMU_FTR_LOCK_BCAST_INVAL | \
+                               MMU_FTR_USE_TLBRSRV | \
+                               MMU_FTR_USE_PAIRED_MAS | \
+                               MMU_FTR_TLBIEL | \
+                               MMU_FTR_16M_PAGE
 #ifndef __ASSEMBLY__
 #include <asm/cputable.h>