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bh=yM8cvfNz5jVfR0nEV77nAvQQBtTw5TotKep/NN0+z/U=; b=fqpsebHD5cGcr5m/rhD5tIZunJ mu0FGvCDmW7G8UikT9VBw3YmgHxjYCqR85Yjq1SNB5b8LxY4tD1KESaNk/C/MEE9oMcnZSOFKEQQQ heyVfhw3U68Rb4yS48Ngvf07xGLDqG7dWbrMMPBcsAAZrefTRiEAHNg/h+eLBtJ/l81xnSWNW2w1e 6KYkVIOeY8tHmhIMfpicjm1a3EL9JqeKKYbT7N/dAO5THS+vuwuvH9+Z47+qvE3n9mCx6gjBTWE58 VqdGnnKOt1NRyYe+2+9HLQh9d0ggzJCZ4Bh+7CwzWNiLpqJ7mGYdUigM+boHB29pObhMCXaXBQg2Y oCsKxxEw==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pX7fI-0018oy-CB; Tue, 28 Feb 2023 21:37:40 +0000 From: "Matthew Wilcox (Oracle)" To: linux-mm@kvack.org, linux-arch@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org, Brian Cain Subject: [PATCH v3 10/34] hexagon: Implement the new page table range API Date: Tue, 28 Feb 2023 21:37:13 +0000 Message-Id: <20230228213738.272178-11-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230228213738.272178-1-willy@infradead.org> References: <20230228213738.272178-1-willy@infradead.org> MIME-Version: 1.0 X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: BE5E320004 X-Stat-Signature: x9yjz7krq49fs9r37n9p11ak14dc7feq X-Rspam-User: X-HE-Tag: 1677620262-842818 X-HE-Meta: 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 BoukXRjt Nt9KwIy1pzDbr6z1q5zukVziarVGYN/4VI2hpRx8mUS616cCYdDh+LyLsxvs9kXtHhHT7rm9pq/4tfKLm0w/hdWfwyBurw2TjzAVf9chdfL4M0kOHCNByxRkAfLdhS6KPGjrQcfDW9Jt+ggrSFg5zL9YYnBEfHrFkmxU4cuFM7ZZma5v7PtA08xLxPxVIQaY5cXNCNPEHohv1Yy3shSFX+321f0SQEBk5bUwfFKHiQIXcVfzX2DsBBq8GqnPz6S04e/AL X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Add set_ptes() and update_mmu_cache_range(). Signed-off-by: Matthew Wilcox (Oracle) Acked-by: Brian Cain --- arch/hexagon/include/asm/cacheflush.h | 7 +++++-- arch/hexagon/include/asm/pgtable.h | 16 ++++++++++++++-- 2 files changed, 19 insertions(+), 4 deletions(-) diff --git a/arch/hexagon/include/asm/cacheflush.h b/arch/hexagon/include/asm/cacheflush.h index 6eff0730e6ef..63ca314ede89 100644 --- a/arch/hexagon/include/asm/cacheflush.h +++ b/arch/hexagon/include/asm/cacheflush.h @@ -58,12 +58,15 @@ extern void flush_cache_all_hexagon(void); * clean the cache when the PTE is set. * */ -static inline void update_mmu_cache(struct vm_area_struct *vma, - unsigned long address, pte_t *ptep) +static inline void update_mmu_cache_range(struct vm_area_struct *vma, + unsigned long address, pte_t *ptep, unsigned int nr) { /* generic_ptrace_pokedata doesn't wind up here, does it? */ } +#define update_mmu_cache(vma, addr, ptep) \ + update_mmu_cache_range(vma, addr, ptep, 1) + void copy_to_user_page(struct vm_area_struct *vma, struct page *page, unsigned long vaddr, void *dst, void *src, int len); #define copy_to_user_page copy_to_user_page diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h index 59393613d086..f58f1d920769 100644 --- a/arch/hexagon/include/asm/pgtable.h +++ b/arch/hexagon/include/asm/pgtable.h @@ -346,12 +346,24 @@ static inline int pte_exec(pte_t pte) #define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval)) /* - * set_pte_at - update page table and do whatever magic may be + * set_ptes - update page table and do whatever magic may be * necessary to make the underlying hardware/firmware take note. * * VM may require a virtual instruction to alert the MMU. */ -#define set_pte_at(mm, addr, ptep, pte) set_pte(ptep, pte) +static inline void set_ptes(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte, unsigned int nr) +{ + for (;;) { + set_pte(ptep, pte); + if (--nr == 0) + break; + ptep++; + pte_val(pte) += PAGE_SIZE; + } +} + +#define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1) static inline unsigned long pmd_page_vaddr(pmd_t pmd) {