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authorKumar Gala <galak@kernel.crashing.org>2009-02-12 16:12:40 -0600
committerKumar Gala <galak@kernel.crashing.org>2009-02-12 16:51:33 -0600
commit70fe3af8403f85196bb74f22ce4813db7dfedc1a (patch)
treee82d3e5ee4b93b0a336df183d6dff5fe04cccab6 /arch/powerpc
parentd66c82ea456853a71d88359b0c19a92ac1d393ff (diff)
powerpc/book-3e: Introduce concept of Book-3e MMU
The Power ISA 2.06 spec introduces a standard MMU programming model that is based on the Freescale Book-E MMU programing model. The Freescale version is pretty backwards compatiable with the ISA 2.06 definition so we are starting to refactor some of the Freescale code so it can be easily shared. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/mmu-book3e.h (renamed from arch/powerpc/include/asm/mmu-fsl-booke.h)0
-rw-r--r--arch/powerpc/include/asm/mmu.h6
-rw-r--r--arch/powerpc/kernel/entry_32.S6
-rw-r--r--arch/powerpc/platforms/Kconfig.cputype4
4 files changed, 10 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/mmu-fsl-booke.h b/arch/powerpc/include/asm/mmu-book3e.h
index c5363c3a720..c5363c3a720 100644
--- a/arch/powerpc/include/asm/mmu-fsl-booke.h
+++ b/arch/powerpc/include/asm/mmu-book3e.h
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 6e763991131..5c78079cfa3 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -71,9 +71,9 @@ extern unsigned int __start___mmu_ftr_fixup, __stop___mmu_ftr_fixup;
#elif defined(CONFIG_44x)
/* 44x-style software loaded TLB */
# include <asm/mmu-44x.h>
-#elif defined(CONFIG_FSL_BOOKE)
-/* Freescale Book-E software loaded TLB */
-# include <asm/mmu-fsl-booke.h>
+#elif defined(CONFIG_PPC_BOOK3E_MMU)
+/* Freescale Book-E software loaded TLB or Book-3e (ISA 2.06+) MMU */
+# include <asm/mmu-book3e.h>
#elif defined (CONFIG_PPC_8xx)
/* Motorola/Freescale 8xx software loaded TLB */
# include <asm/mmu-8xx.h>
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 6f7eb7e00c7..301c646d1a7 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -63,7 +63,7 @@ debug_transfer_to_handler:
.globl crit_transfer_to_handler
crit_transfer_to_handler:
-#ifdef CONFIG_FSL_BOOKE
+#ifdef CONFIG_PPC_BOOK3E_MMU
mfspr r0,SPRN_MAS0
stw r0,MAS0(r11)
mfspr r0,SPRN_MAS1
@@ -78,7 +78,7 @@ crit_transfer_to_handler:
mfspr r0,SPRN_MAS7
stw r0,MAS7(r11)
#endif /* CONFIG_PHYS_64BIT */
-#endif /* CONFIG_FSL_BOOKE */
+#endif /* CONFIG_PPC_BOOK3E_MMU */
#ifdef CONFIG_44x
mfspr r0,SPRN_MMUCR
stw r0,MMUCR(r11)
@@ -914,7 +914,7 @@ exc_exit_restart_end:
mtspr SPRN_##exc_lvl_srr0,r9; \
mtspr SPRN_##exc_lvl_srr1,r10;
-#if defined(CONFIG_FSL_BOOKE)
+#if defined(CONFIG_PPC_BOOK3E_MMU)
#ifdef CONFIG_PHYS_64BIT
#define RESTORE_MAS7 \
lwz r11,MAS7(r1); \
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index e868b5c5072..9428c0e11b2 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -210,6 +210,10 @@ config PPC_MMU_NOHASH
def_bool y
depends on !PPC_STD_MMU
+config PPC_BOOK3E_MMU
+ def_bool y
+ depends on FSL_BOOKE
+
config PPC_MM_SLICES
bool
default y if HUGETLB_PAGE || (PPC_STD_MMU_64 && PPC_64K_PAGES)