From: Chintan Pandya <cpandya@codeaurora.org>
To: will.deacon@arm.com, catalin.marinas@arm.com,
mark.rutland@arm.com, akpm@linux-foundation.org
Cc: toshi.kani@hpe.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Chintan Pandya <cpandya@codeaurora.org>
Subject: [PATCH v12 3/5] arm64: pgtable: Add p*d_page_vaddr helper macros
Date: Fri, 1 Jun 2018 18:09:16 +0530 [thread overview]
Message-ID: <1527856758-27169-4-git-send-email-cpandya@codeaurora.org> (raw)
In-Reply-To: <1527856758-27169-1-git-send-email-cpandya@codeaurora.org>
Add helper macros to give virtual references to page
tables. These will be used while freeing dangling
page tables.
Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>
---
arch/arm64/include/asm/pgtable.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 7c4c8f3..ef4047f 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -580,6 +580,9 @@ static inline phys_addr_t pgd_page_paddr(pgd_t pgd)
#endif /* CONFIG_PGTABLE_LEVELS > 3 */
+#define pmd_page_vaddr(pmd) __va(pmd_page_paddr(pmd))
+#define pud_page_vaddr(pud) __va(pud_page_paddr(pud))
+
#define pgd_ERROR(pgd) __pgd_error(__FILE__, __LINE__, pgd_val(pgd))
/* to find an entry in a page-table-directory */
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation
Center, Inc., is a member of Code Aurora Forum, a Linux Foundation
Collaborative Project
next prev parent reply other threads:[~2018-06-01 12:40 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-01 12:39 [PATCH v12 0/5] Fix issues with huge mapping in ioremap for ARM64 Chintan Pandya
2018-06-01 12:39 ` [PATCH v12 1/5] ioremap: Update pgtable free interfaces with addr Chintan Pandya
2018-06-01 12:39 ` [PATCH v12 2/5] arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable Chintan Pandya
2018-06-01 12:39 ` Chintan Pandya [this message]
2018-06-04 12:13 ` [PATCH v12 3/5] arm64: pgtable: Add p*d_page_vaddr helper macros Will Deacon
2018-06-04 13:43 ` Chintan Pandya
2018-06-04 15:10 ` Will Deacon
2018-06-01 12:39 ` [PATCH v12 4/5] arm64: Implement page table free interfaces Chintan Pandya
2018-06-04 12:13 ` Will Deacon
2018-06-04 13:43 ` Chintan Pandya
2018-06-04 15:07 ` Will Deacon
2018-06-01 12:39 ` [PATCH v12 5/5] arm64: Allow huge io mappings again Chintan Pandya
2018-06-04 12:14 ` Will Deacon
2018-06-04 13:42 ` Chintan Pandya
2018-06-04 5:56 ` [PATCH v12 0/5] Fix issues with huge mapping in ioremap for ARM64 Chintan Pandya
2018-06-04 10:33 ` Will Deacon
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