This is a global variable defined in fsl_booke_mmu.c with a value that gets initialized in assembly code in head_fsl_booke.S.
It's never used. If some code ever does want to know the number of entries in TLB1, then "numcams = mfspr(SPRN_TLB1CFG) & 0xfff", is a whole lot simpler than a global initialized during kernel boot from assembly. Signed-off-by: Trent Piepho <[EMAIL PROTECTED]> --- arch/powerpc/kernel/head_fsl_booke.S | 4 ---- arch/powerpc/mm/fsl_booke_mmu.c | 1 - arch/powerpc/mm/mmu_decl.h | 2 -- 3 files changed, 0 insertions(+), 7 deletions(-) diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index c591acb..e33021f 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/kernel/head_fsl_booke.S @@ -389,10 +389,6 @@ skpinv: addi r6,r6,1 /* Increment */ #endif #endif - mfspr r3,SPRN_TLB1CFG - andi. r3,r3,0xfff - lis r4,[EMAIL PROTECTED] - stw r3,[EMAIL PROTECTED](r4) /* * Decide what sort of machine this is and initialize the MMU. */ diff --git a/arch/powerpc/mm/fsl_booke_mmu.c b/arch/powerpc/mm/fsl_booke_mmu.c index c9ee59a..1971e4e 100644 --- a/arch/powerpc/mm/fsl_booke_mmu.c +++ b/arch/powerpc/mm/fsl_booke_mmu.c @@ -56,7 +56,6 @@ extern void loadcam_entry(unsigned int index); unsigned int tlbcam_index; -unsigned int num_tlbcam_entries; static unsigned long __cam0, __cam1, __cam2; #define NUM_TLBCAMS (16) diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h index f0d0aae..1db3c67 100644 --- a/arch/powerpc/mm/mmu_decl.h +++ b/arch/powerpc/mm/mmu_decl.h @@ -51,8 +51,6 @@ extern unsigned int rtas_data, rtas_size; struct hash_pte; extern struct hash_pte *Hash, *Hash_end; extern unsigned long Hash_size, Hash_mask; - -extern unsigned int num_tlbcam_entries; #endif extern unsigned long ioremap_bot; -- 1.5.4.1 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
