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Tue, 15 Jun 2021 11:09:19 +0000 (GMT) From: "Aneesh Kumar K.V" To: linux-mm@kvack.org Cc: akpm@linux-foundation.org, Linus Torvalds , "Aneesh Kumar K.V" , linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-arch@vger.kernel.org Subject: [PATCH v2 2/2] mm: rename p4d_page_vaddr to p4d_pgtable and make it return pud_t * Date: Tue, 15 Jun 2021 16:38:59 +0530 Message-Id: <20210615110859.320299-2-aneesh.kumar@linux.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210615110859.320299-1-aneesh.kumar@linux.ibm.com> References: <20210615110859.320299-1-aneesh.kumar@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: _LkL_3fJzhGn91Y5tgVoMjM15-XPwyMY X-Proofpoint-GUID: _LkL_3fJzhGn91Y5tgVoMjM15-XPwyMY X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391,18.0.761 definitions=2021-06-15_04:2021-06-14,2021-06-15 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1011 bulkscore=0 spamscore=0 malwarescore=0 phishscore=0 adultscore=0 suspectscore=0 impostorscore=0 lowpriorityscore=0 priorityscore=1501 mlxscore=0 mlxlogscore=848 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2106150070 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org No functional change in this patch. Cc: linux-alpha@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-ia64@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-mips@vger.kernel.org Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-riscv@lists.infradead.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: linux-um@lists.infradead.org Cc: linux-arch@vger.kernel.org Link: https://lore.kernel.org/linuxppc-dev/CAHk-=wi+J+iodze9FtjM3Zi4j4OeS+qqbKxME9QN4roxPEXH9Q@mail.gmail.com/ Signed-off-by: Aneesh Kumar K.V --- arch/arm64/include/asm/pgtable.h | 4 ++-- arch/ia64/include/asm/pgtable.h | 2 +- arch/mips/include/asm/pgtable-64.h | 4 ++-- arch/powerpc/include/asm/book3s/64/pgtable.h | 5 ++++- arch/powerpc/include/asm/nohash/64/pgtable-4k.h | 6 +++++- arch/powerpc/mm/book3s64/radix_pgtable.c | 2 +- arch/powerpc/mm/pgtable_64.c | 2 +- arch/sparc/include/asm/pgtable_64.h | 4 ++-- arch/x86/include/asm/pgtable.h | 4 ++-- arch/x86/mm/init_64.c | 4 ++-- include/asm-generic/pgtable-nop4d.h | 2 +- include/asm-generic/pgtable-nopud.h | 2 +- include/linux/pgtable.h | 2 +- 13 files changed, 25 insertions(+), 18 deletions(-) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 53a415b329b0..fde06639fff8 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -697,9 +697,9 @@ static inline phys_addr_t p4d_page_paddr(p4d_t p4d) return __p4d_to_phys(p4d); } -static inline unsigned long p4d_page_vaddr(p4d_t p4d) +static inline pud_t *p4d_pgtable(p4d_t p4d) { - return (unsigned long)__va(p4d_page_paddr(p4d)); + return (pud_t *)__va(p4d_page_paddr(p4d)); } /* Find an entry in the frst-level page table. */ diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h index b2ddfbe70365..a2d5098b299a 100644 --- a/arch/ia64/include/asm/pgtable.h +++ b/arch/ia64/include/asm/pgtable.h @@ -282,7 +282,7 @@ ia64_phys_addr_valid (unsigned long addr) #define p4d_bad(p4d) (!ia64_phys_addr_valid(p4d_val(p4d))) #define p4d_present(p4d) (p4d_val(p4d) != 0UL) #define p4d_clear(p4dp) (p4d_val(*(p4dp)) = 0UL) -#define p4d_page_vaddr(p4d) ((unsigned long) __va(p4d_val(p4d) & _PFN_MASK)) +#define p4d_pgtable(p4d) ((pud_t *) __va(p4d_val(p4d) & _PFN_MASK)) #define p4d_page(p4d) virt_to_page((p4d_val(p4d) + PAGE_OFFSET)) #endif diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h index ab305453e90f..b865edff2670 100644 --- a/arch/mips/include/asm/pgtable-64.h +++ b/arch/mips/include/asm/pgtable-64.h @@ -210,9 +210,9 @@ static inline void p4d_clear(p4d_t *p4dp) p4d_val(*p4dp) = (unsigned long)invalid_pud_table; } -static inline unsigned long p4d_page_vaddr(p4d_t p4d) +static inline pud_t *p4d_pgtable(p4d_t p4d) { - return p4d_val(p4d); + return (pud_t *)p4d_val(p4d); } #define p4d_phys(p4d) virt_to_phys((void *)p4d_val(p4d)) diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index 40bafe1e80c9..cbedc7c8959d 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -1048,7 +1048,10 @@ extern struct page *p4d_page(p4d_t p4d); /* Pointers in the page table tree are physical addresses */ #define __pgtable_ptr_val(ptr) __pa(ptr) -#define p4d_page_vaddr(p4d) __va(p4d_val(p4d) & ~P4D_MASKED_BITS) +static inline pud_t *p4d_pgtable(p4d_t p4d) +{ + return (pud_t *)__va(p4d_val(p4d) & ~P4D_MASKED_BITS); +} static inline pmd_t *pud_pgtable(pud_t pud) { diff --git a/arch/powerpc/include/asm/nohash/64/pgtable-4k.h b/arch/powerpc/include/asm/nohash/64/pgtable-4k.h index fe2f4c9acd9e..10f5cf444d72 100644 --- a/arch/powerpc/include/asm/nohash/64/pgtable-4k.h +++ b/arch/powerpc/include/asm/nohash/64/pgtable-4k.h @@ -56,10 +56,14 @@ #define p4d_none(p4d) (!p4d_val(p4d)) #define p4d_bad(p4d) (p4d_val(p4d) == 0) #define p4d_present(p4d) (p4d_val(p4d) != 0) -#define p4d_page_vaddr(p4d) (p4d_val(p4d) & ~P4D_MASKED_BITS) #ifndef __ASSEMBLY__ +static inline pud_t *p4d_pgtable(p4d_t p4d) +{ + return (pud_t *) (p4d_val(p4d) & ~P4D_MASKED_BITS); +} + static inline void p4d_clear(p4d_t *p4dp) { *p4dp = __p4d(0); diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c index b663d8f9f05c..1ba6d9291c10 100644 --- a/arch/powerpc/mm/book3s64/radix_pgtable.c +++ b/arch/powerpc/mm/book3s64/radix_pgtable.c @@ -859,7 +859,7 @@ static void __meminit remove_pagetable(unsigned long start, unsigned long end) continue; } - pud_base = (pud_t *)p4d_page_vaddr(*p4d); + pud_base = p4d_pgtable(*p4d); remove_pud_table(pud_base, addr, next); free_pud_table(pud_base, p4d); } diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index 4ba311808bdb..78c8cf01db5f 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -105,7 +105,7 @@ struct page *p4d_page(p4d_t p4d) VM_WARN_ON(!p4d_huge(p4d)); return pte_page(p4d_pte(p4d)); } - return virt_to_page(p4d_page_vaddr(p4d)); + return virt_to_page(p4d_pgtable(p4d)); } #endif diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index 534ec872fa2c..c0f56da1c205 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -860,8 +860,8 @@ static inline pmd_t *pud_pgtable(pud_t pud) #define pmd_clear(pmdp) (pmd_val(*(pmdp)) = 0UL) #define pud_present(pud) (pud_val(pud) != 0U) #define pud_clear(pudp) (pud_val(*(pudp)) = 0UL) -#define p4d_page_vaddr(p4d) \ - ((unsigned long) __va(p4d_val(p4d))) +#define p4d_pgtable(p4d) \ + ((pud_t *) __va(p4d_val(p4d))) #define p4d_present(p4d) (p4d_val(p4d) != 0U) #define p4d_clear(p4dp) (p4d_val(*(p4dp)) = 0UL) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 35a34ca6f2e9..b6c97b8f59ec 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -906,9 +906,9 @@ static inline int p4d_present(p4d_t p4d) return p4d_flags(p4d) & _PAGE_PRESENT; } -static inline unsigned long p4d_page_vaddr(p4d_t p4d) +static inline pud_t *p4d_pgtable(p4d_t p4d) { - return (unsigned long)__va(p4d_val(p4d) & p4d_pfn_mask(p4d)); + return (pud_t *)__va(p4d_val(p4d) & p4d_pfn_mask(p4d)); } /* diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index e527d829e1ed..ffb3da2cb038 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -193,8 +193,8 @@ static void sync_global_pgds_l4(unsigned long start, unsigned long end) spin_lock(pgt_lock); if (!p4d_none(*p4d_ref) && !p4d_none(*p4d)) - BUG_ON(p4d_page_vaddr(*p4d) - != p4d_page_vaddr(*p4d_ref)); + BUG_ON(p4d_pgtable(*p4d) + != p4d_pgtable(*p4d_ref)); if (p4d_none(*p4d)) set_p4d(p4d, *p4d_ref); diff --git a/include/asm-generic/pgtable-nop4d.h b/include/asm-generic/pgtable-nop4d.h index ce2cbb3c380f..982de5102fc1 100644 --- a/include/asm-generic/pgtable-nop4d.h +++ b/include/asm-generic/pgtable-nop4d.h @@ -42,7 +42,7 @@ static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address) #define __p4d(x) ((p4d_t) { __pgd(x) }) #define pgd_page(pgd) (p4d_page((p4d_t){ pgd })) -#define pgd_page_vaddr(pgd) (p4d_page_vaddr((p4d_t){ pgd })) +#define pgd_page_vaddr(pgd) (p4d_pgtable((p4d_t){ pgd })) /* * allocating and freeing a p4d is trivial: the 1-entry p4d is diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h index 7cbd15f70bf5..eb70c6d7ceff 100644 --- a/include/asm-generic/pgtable-nopud.h +++ b/include/asm-generic/pgtable-nopud.h @@ -49,7 +49,7 @@ static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address) #define __pud(x) ((pud_t) { __p4d(x) }) #define p4d_page(p4d) (pud_page((pud_t){ p4d })) -#define p4d_page_vaddr(p4d) (pud_pgtable((pud_t){ p4d })) +#define p4d_pgtable(p4d) ((pud_t *)(pud_pgtable((pud_t){ p4d }))) /* * allocating and freeing a pud is trivial: the 1-entry pud is diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index 311984f87cf9..d355290bf70e 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -96,7 +96,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) #ifndef pud_offset static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address) { - return (pud_t *)p4d_page_vaddr(*p4d) + pud_index(address); + return p4d_pgtable(*p4d) + pud_index(address); } #define pud_offset pud_offset #endif