From 70fe3af8403f85196bb74f22ce4813db7dfedc1a Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Thu, 12 Feb 2009 16:12:40 -0600 Subject: [PATCH] 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 --- arch/powerpc/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 6e7639911318..5c78079cfa3c 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 -#elif defined(CONFIG_FSL_BOOKE) -/* Freescale Book-E software loaded TLB */ -# include +#elif defined(CONFIG_PPC_BOOK3E_MMU) +/* Freescale Book-E software loaded TLB or Book-3e (ISA 2.06+) MMU */ +# include #elif defined (CONFIG_PPC_8xx) /* Motorola/Freescale 8xx software loaded TLB */ # include diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 6f7eb7e00c79..301c646d1a7d 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 e868b5c50723..9428c0e11b20 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) -- 2.20.1