From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELtQsfJEMRV6EieJivmtRP3YYW8fvzVlS+xGFVd/275NznFkqGnJ9aVmnN3I2OmZYj65kW+p ARC-Seal: i=1; a=rsa-sha256; t=1521117929; cv=none; d=google.com; s=arc-20160816; b=zm5S+xXtIbAs1849+tAZmBf8/CaKjrcnVr1D1XU+9T/klh4PNte+z77O84YXGyc6xn yamKG5IAXjrGYXM4SzqgN6PAwkOPs/+4Wp4CqoY9cmbYvtLc2ujwdhwwHFupXZnH3ZqT tBfmsYSLRZRjVu8VlsaEarDm9c6kBKozgcZtqeaakIf9ma9+0Uxo7nZCSKFrDtn1xvHq ECUspyc3yvPe/+Kn+I7eEaAijHiVYsHiiKu008AM5/rUf06CsxJWDJDSq13XlbuxcZe5 UNHa/lJX4jSAJryjsV3Q5CtgcVX+XEyMBuUeS+FppYlAlF4L1yoBVkebh9VUHDsMJkvi us7Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :dmarc-filter:dkim-signature:dkim-signature :arc-authentication-results; bh=Co9F+KioBoatCy947UHZVmFoVPuHhrCd48Z0+KiQ+Xg=; b=pHjqXlfBCTApJPADkwTKtdWSSJuFlx3oZ9Iop1yEO+sbJXAruGLR8wCbtNtGmbD6cm bewO/nASc2tlZiUgQbksxUErtVTy118l8Jcit/VDXf8iMkeYPPK9jjyB590HsV0sXy1M QsCqxUvWY7BtBaCbx8wpoj8Y66CpxoWNeA8yBqoW9ImCWkd8WTRBOkw/2erQy5XHAQ7Z IwS5esf0ubY1dmUrlkQFXnbGmXDELsKs5QVWoYqnWiaS0ZbwjPF1mB3zMlKae+8/UIb1 PNpz0Lhibzm0MI4lVOCJw/NOE33mWwvkuPvP9OpQTCkqdf08ZFa41WteHQbQeom1e8YT KpqA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@codeaurora.org header.s=default header.b=Kl+SxKNv; dkim=pass header.i=@codeaurora.org header.s=default header.b=X6z9UOtm; spf=pass (google.com: domain of cpandya@codeaurora.org designates 198.145.29.96 as permitted sender) smtp.mailfrom=cpandya@codeaurora.org Authentication-Results: mx.google.com; dkim=pass header.i=@codeaurora.org header.s=default header.b=Kl+SxKNv; dkim=pass header.i=@codeaurora.org header.s=default header.b=X6z9UOtm; spf=pass (google.com: domain of cpandya@codeaurora.org designates 198.145.29.96 as permitted sender) smtp.mailfrom=cpandya@codeaurora.org DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 73F7760BFA Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=cpandya@codeaurora.org From: Chintan Pandya To: catalin.marinas@arm.com, will.deacon@arm.com, arnd@arndb.de Cc: mark.rutland@arm.com, ard.biesheuvel@linaro.org, marc.zyngier@arm.com, james.morse@arm.com, kristina.martsenko@arm.com, takahiro.akashi@linaro.org, gregkh@linuxfoundation.org, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, akpm@linux-foundation.org, toshi.kani@hpe.com, Chintan Pandya Subject: [PATCH v2 1/4] asm/tlbflush: Add flush_tlb_pgtable() for ARM64 Date: Thu, 15 Mar 2018 18:15:03 +0530 Message-Id: <1521117906-20107-2-git-send-email-cpandya@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1521117906-20107-1-git-send-email-cpandya@codeaurora.org> References: <1521117906-20107-1-git-send-email-cpandya@codeaurora.org> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1595007754544699532?= X-GMAIL-MSGID: =?utf-8?q?1595007754544699532?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: ARM64 MMU implements invalidation of TLB for intermediate page tables for perticular VA. This may or may not be available for other arch. So, provide this API hook only for ARM64, for now. Signed-off-by: Chintan Pandya --- arch/arm64/include/asm/tlbflush.h | 5 +++++ include/asm-generic/tlb.h | 6 ++++++ 2 files changed, 11 insertions(+) diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h index 9e82dd7..5f656f0 100644 --- a/arch/arm64/include/asm/tlbflush.h +++ b/arch/arm64/include/asm/tlbflush.h @@ -209,6 +209,11 @@ static inline void __flush_tlb_pgtable(struct mm_struct *mm, dsb(ish); } +static inline void flush_tlb_pgtable(struct mm_struct *mm, + unsigned long uaddr) +{ + __flush_tlb_pgtable(mm, uaddr); +} #endif #endif diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index faddde4..7832c0a 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -295,4 +295,10 @@ static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb, #define tlb_migrate_finish(mm) do {} while (0) +#ifndef CONFIG_ARM64 +static inline void flush_tlb_pgtable(struct mm_struct *mm, + unsigned long uaddr) +{ +} +#endif #endif /* _ASM_GENERIC__TLB_H */ -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., is a member of Code Aurora Forum, a Linux Foundation Collaborative Project