From: Chintan Pandya <cpandya@codeaurora.org>
To: Will Deacon <will.deacon@arm.com>, Arnd Bergmann <arnd@arndb.de>,
Mark Rutland <mark.rutland@arm.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Marc Zyngier <marc.zyngier@arm.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Philip Elcan <pelcan@codeaurora.org>,
James Morse <james.morse@arm.com>,
Kristina Martsenko <kristina.martsenko@arm.com>,
Toshi Kani <toshi.kani@hpe.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Joerg Roedel <joro@8bytes.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
Chintan Pandya <cpandya@codeaurora.org>
Subject: [PATCH v9 2/4] arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable
Date: Mon, 30 Apr 2018 13:11:32 +0530 [thread overview]
Message-ID: <1525074094-25839-3-git-send-email-cpandya@codeaurora.org> (raw)
In-Reply-To: <1525074094-25839-1-git-send-email-cpandya@codeaurora.org>
Add an interface to invalidate intermediate page tables
from TLB for kernel.
Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>
---
arch/arm64/include/asm/tlbflush.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h
index dfc61d7..a4a1901 100644
--- a/arch/arm64/include/asm/tlbflush.h
+++ b/arch/arm64/include/asm/tlbflush.h
@@ -218,6 +218,13 @@ static inline void __flush_tlb_pgtable(struct mm_struct *mm,
dsb(ish);
}
+static inline void __flush_tlb_kernel_pgtable(unsigned long kaddr)
+{
+ unsigned long addr = __TLBI_VADDR(kaddr, 0);
+
+ __tlbi(vaae1is, addr);
+ dsb(ish);
+}
#endif
#endif
--
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:[~2018-04-30 7:41 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-30 7:41 [PATCH v9 0/4] Fix issues with huge mapping in ioremap for ARM64 Chintan Pandya
2018-04-30 7:41 ` Chintan Pandya
2018-04-30 7:41 ` [PATCH v9 1/4] ioremap: Update pgtable free interfaces with addr Chintan Pandya
2018-04-30 7:41 ` Chintan Pandya
2018-04-30 7:41 ` Chintan Pandya [this message]
2018-04-30 7:41 ` [PATCH v9 2/4] arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable Chintan Pandya
2018-04-30 7:41 ` [PATCH v9 3/4] arm64: Implement page table free interfaces Chintan Pandya
2018-04-30 7:41 ` Chintan Pandya
2018-05-23 14:01 ` Will Deacon
2018-05-23 14:01 ` Will Deacon
2018-05-23 14:34 ` Kani, Toshi
2018-05-23 14:34 ` Kani, Toshi
2018-05-24 7:03 ` Chintan Pandya
2018-05-24 7:03 ` Chintan Pandya
2018-05-24 7:34 ` Chintan Pandya
2018-05-24 7:34 ` Chintan Pandya
2018-04-30 7:41 ` [PATCH v9 4/4] Revert "arm64: Enforce BBM for huge IO/VMAP mappings" Chintan Pandya
2018-04-30 7:41 ` Chintan Pandya
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