powerpc: Clean up MMU_FTRS_A2 and MMU_FTR_TYPE_3E

In fb5a515704d7 "powerpc: Remove platforms/wsp and associated pieces",
we removed the last user of MMU_FTRS_A2. So remove it.

MMU_FTRS_A2 was the last user of MMU_FTR_TYPE_3E, so remove it also.
This leaves some unreachable code in mmu_context_nohash.c, so remove
that also.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index f8d1d6d..e61f24e 100644 (file)
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -19,8 +19,7 @@
 #define MMU_FTR_TYPE_40x               ASM_CONST(0x00000004)
 #define MMU_FTR_TYPE_44x               ASM_CONST(0x00000008)
 #define MMU_FTR_TYPE_FSL_E             ASM_CONST(0x00000010)
-#define MMU_FTR_TYPE_3E                        ASM_CONST(0x00000020)
-#define MMU_FTR_TYPE_47x               ASM_CONST(0x00000040)
+#define MMU_FTR_TYPE_47x               ASM_CONST(0x00000020)
 
 /*
  * This is individual features
@@ -106,13 +105,6 @@
                                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>
 

diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index af3d78e..928ebe7 100644 (file)
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -410,17 +410,7 @@ void __init mmu_context_init(void)
        } else if (mmu_has_feature(MMU_FTR_TYPE_47x)) {
                first_context = 1;
                last_context = 65535;
-       } else
-#ifdef CONFIG_PPC_BOOK3E_MMU
-       if (mmu_has_feature(MMU_FTR_TYPE_3E)) {
-               u32 mmucfg = mfspr(SPRN_MMUCFG);
-               u32 pid_bits = (mmucfg & MMUCFG_PIDSIZE_MASK)
-                               >> MMUCFG_PIDSIZE_SHIFT;
-               first_context = 1;
-               last_context = (1UL << (pid_bits + 1)) - 1;
-       } else
-#endif
-       {
+       } else {
                first_context = 1;
                last_context = 255;
        }