From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e33.co.us.ibm.com (e33.co.us.ibm.com [32.97.110.151]) (using TLSv1.2 with cipher CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3qhmLb2VZ4zDqGs for ; Sat, 9 Apr 2016 16:16:39 +1000 (AEST) Received: from localhost by e33.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Sat, 9 Apr 2016 00:16:37 -0600 Received: from b01cxnp23032.gho.pok.ibm.com (b01cxnp23032.gho.pok.ibm.com [9.57.198.27]) by d03dlp03.boulder.ibm.com (Postfix) with ESMTP id B754019D8047 for ; Sat, 9 Apr 2016 00:04:26 -0600 (MDT) Received: from d01av01.pok.ibm.com (d01av01.pok.ibm.com [9.56.224.215]) by b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u396GYYY35520700 for ; Sat, 9 Apr 2016 06:16:34 GMT Received: from d01av01.pok.ibm.com (localhost [127.0.0.1]) by d01av01.pok.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u396GXME017214 for ; Sat, 9 Apr 2016 02:16:33 -0400 From: "Aneesh Kumar K.V" To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au Cc: linuxppc-dev@lists.ozlabs.org, "Aneesh Kumar K.V" , Scott Wood Subject: [PATCH V2 49/68] powerpc/mm: Revert changes made to nohash pgalloc-64.h Date: Sat, 9 Apr 2016 11:43:45 +0530 Message-Id: <1460182444-2468-50-git-send-email-aneesh.kumar@linux.vnet.ibm.com> In-Reply-To: <1460182444-2468-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1460182444-2468-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This revert pgalloc related changes w.r.t implementing 4 level page table for 64k linux page size and storing of physical address in higher level page table since they are only applicable to book3s 64 variant and we now have a separate copy for book3s 64. This helps to keep these headers simpler Cc: Scott Wood Signed-off-by: Aneesh Kumar K.V --- arch/powerpc/include/asm/nohash/64/pgalloc.h | 42 +++++++--------------------- arch/powerpc/include/asm/nohash/64/pgtable.h | 3 -- 2 files changed, 10 insertions(+), 35 deletions(-) diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h index 8d5fc3ac43da..69ef28a81733 100644 --- a/arch/powerpc/include/asm/nohash/64/pgalloc.h +++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h @@ -53,7 +53,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) #ifndef CONFIG_PPC_64K_PAGES -#define pgd_populate(MM, PGD, PUD) pgd_set(PGD, __pgtable_ptr_val(PUD)) +#define pgd_populate(MM, PGD, PUD) pgd_set(PGD, (unsigned long)PUD) static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) { @@ -68,19 +68,19 @@ static inline void pud_free(struct mm_struct *mm, pud_t *pud) static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) { - pud_set(pud, __pgtable_ptr_val(pmd)); + pud_set(pud, (unsigned long)pmd); } static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) { - pmd_set(pmd, __pgtable_ptr_val(pte)); + pmd_set(pmd, (unsigned long)pte); } static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t pte_page) { - pmd_set(pmd, __pgtable_ptr_val(page_address(pte_page))); + pmd_set(pmd, (unsigned long)page_address(pte_page)); } #define pmd_pgtable(pmd) pmd_page(pmd) @@ -171,45 +171,23 @@ extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift); extern void __tlb_remove_table(void *_table); #endif -#ifndef __PAGETABLE_PUD_FOLDED -/* book3s 64 is 4 level page table */ -static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud) -{ - pgd_set(pgd, __pgtable_ptr_val(pud)); -} - -static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) -{ - return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE), - GFP_KERNEL|__GFP_REPEAT); -} - -static inline void pud_free(struct mm_struct *mm, pud_t *pud) -{ - kmem_cache_free(PGT_CACHE(PUD_INDEX_SIZE), pud); -} -#endif - -static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) -{ - pud_set(pud, __pgtable_ptr_val(pmd)); -} +#define pud_populate(mm, pud, pmd) pud_set(pud, (unsigned long)pmd) static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) { - pmd_set(pmd, __pgtable_ptr_val(pte)); + pmd_set(pmd, (unsigned long)pte); } static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t pte_page) { - pmd_set(pmd, __pgtable_ptr_val(pte_page)); + pmd_set(pmd, (unsigned long)pte_page); } static inline pgtable_t pmd_pgtable(pmd_t pmd) { - return (pgtable_t)pmd_page_vaddr(pmd); + return (pgtable_t)(pmd_val(pmd) & ~PMD_MASKED_BITS); } static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, @@ -255,11 +233,11 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) #define __pmd_free_tlb(tlb, pmd, addr) \ pgtable_free_tlb(tlb, pmd, PMD_CACHE_INDEX) -#ifndef __PAGETABLE_PUD_FOLDED +#ifndef CONFIG_PPC_64K_PAGES #define __pud_free_tlb(tlb, pud, addr) \ pgtable_free_tlb(tlb, pud, PUD_INDEX_SIZE) -#endif /* __PAGETABLE_PUD_FOLDED */ +#endif /* CONFIG_PPC_64K_PAGES */ #define check_pgt_cache() do { } while (0) diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h index f143d6fb3576..d4d808cf905e 100644 --- a/arch/powerpc/include/asm/nohash/64/pgtable.h +++ b/arch/powerpc/include/asm/nohash/64/pgtable.h @@ -108,9 +108,6 @@ #ifndef __ASSEMBLY__ /* pte_clear moved to later in this file */ -/* Pointers in the page table tree are virtual addresses */ -#define __pgtable_ptr_val(ptr) ((unsigned long)(ptr)) - #define PMD_BAD_BITS (PTE_TABLE_SIZE-1) #define PUD_BAD_BITS (PMD_TABLE_SIZE-1) -- 2.5.0