From: Kumar Gala <galak@kernel.crashing.org>
To: linuxppc-dev@ozlabs.org
Subject: [PATCH v2 2/2] powerpc/book-3e: Introduce concept of Book-3e MMU
Date: Thu, 12 Feb 2009 16:52:15 -0600 [thread overview]
Message-ID: <1234479135-32098-1-git-send-email-galak@kernel.crashing.org> (raw)
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>
---
* Changed a few more CONFIG_FSL_BOOKE -> CONFIG_PPC_BOOK3E_MMU
.../include/asm/{mmu-fsl-booke.h => mmu-book3e.h} | 0
arch/powerpc/include/asm/mmu.h | 6 +++---
arch/powerpc/kernel/entry_32.S | 6 +++---
arch/powerpc/platforms/Kconfig.cputype | 4 ++++
4 files changed, 10 insertions(+), 6 deletions(-)
rename arch/powerpc/include/asm/{mmu-fsl-booke.h => mmu-book3e.h} (100%)
diff --git a/arch/powerpc/include/asm/mmu-fsl-booke.h b/arch/powerpc/include/asm/mmu-book3e.h
similarity index 100%
rename from arch/powerpc/include/asm/mmu-fsl-booke.h
rename to arch/powerpc/include/asm/mmu-book3e.h
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 6e76399..5c78079 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 6f7eb7e..301c646 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 e868b5c..9428c0e 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)
--
1.5.6.6
reply other threads:[~2009-02-12 22:52 UTC|newest]
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