From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AG47ELviQqY6kCHibLke4BDlXclzN5rrGgMWu4KAfA03GvlFqi0kgi42KGAvOEWjtsWimc48CGio ARC-Seal: i=1; a=rsa-sha256; t=1521546383; cv=none; d=google.com; s=arc-20160816; b=U2eM7KMQanOTcwOZPPWOa3xUHyDMN6g90ZLlk4V44jvCmmOcyVL1P/3/5t/ztm+6x0 vGsvHZpOq58y44YKBW+TO8KG6af/y6pBI806X4xg49UI8SOa4AjmXVYc/bpRhOjb9bMP JGeZxZocCkx3mj52whX5DTUqVraGdamflbISwFtUqGa5KTQ2oxLe3jhgOCPBoxe2XOpa oIg/02z5INlzqB77DB7gD4pCpWef8LcaZutXsK0eA6XQnry3/JC0PGPdBqxaEVBjEniI tLIpVF8WlxfpPvsEhoXb+jd6UM07o52iT1NRcvrmUZ6LHBJE2vT6b7xmdOabmhyjCKbt CmZw== 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=/KvwQRJCYjelE1K4zfT6GlaJBtchU7L+GcAY0Ih9g5Y=; b=h1NZtIpRLiV2bMh3Rq5KWRZrenZU4BVuPlTOu6tNofAEnK3yJCesUyyTKUz2hvXIHg xx1pQOclxBpoo6aXMYT4MLxYtIIHL2nDNkgm35rjPuNeJ38GaKqGw2dn9H92F7zlxWqi PIa7JCZGn2y9uEv5KEmQyn9ajdmhaMMJuV/Q62dhClYrZiAHawSktZ7ER7susXJVJqT3 i/5C52thRB9C0OI+b2L8QKCkNwCT95bTYIuWw/PlC3xgQ86G6AzSv8dubI8OvLY6rQKP xHZkBF10iLOLIWnVF/lpplloELO/4xhAeC+tH/5Y5XAb3Z1LbiV9Dn2NkaM+FEZKlaDQ pcTA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@codeaurora.org header.s=default header.b=Xm5KMqep; dkim=pass header.i=@codeaurora.org header.s=default header.b=WVm7FogW; 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=Xm5KMqep; dkim=pass header.i=@codeaurora.org header.s=default header.b=WVm7FogW; 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 713F860F6B 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, mark.rutland@arm.com Cc: arnd@arndb.de, 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 v4 3/3] Revert "arm64: Enforce BBM for huge IO/VMAP mappings" Date: Tue, 20 Mar 2018 17:15:14 +0530 Message-Id: <1521546314-31753-4-git-send-email-cpandya@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1521546314-31753-1-git-send-email-cpandya@codeaurora.org> References: <1521546314-31753-1-git-send-email-cpandya@codeaurora.org> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1595457020115340577?= X-GMAIL-MSGID: =?utf-8?q?1595457020115340577?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: This commit 15122ee2c515a ("arm64: Enforce BBM for huge IO/VMAP mappings") is a temporary work-around until the issues with CONFIG_HAVE_ARCH_HUGE_VMAP gets fixed. Revert this change as we have fixes for the issue. Signed-off-by: Chintan Pandya --- arch/arm64/mm/mmu.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 7be3106..1238717 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -935,10 +935,6 @@ int pud_set_huge(pud_t *pudp, phys_addr_t phys, pgprot_t prot) pgprot_t sect_prot = __pgprot(PUD_TYPE_SECT | pgprot_val(mk_sect_prot(prot))); - /* ioremap_page_range doesn't honour BBM */ - if (pud_present(READ_ONCE(*pudp))) - return 0; - BUG_ON(phys & ~PUD_MASK); set_pud(pudp, pfn_pud(__phys_to_pfn(phys), sect_prot)); return 1; @@ -949,10 +945,6 @@ int pmd_set_huge(pmd_t *pmdp, phys_addr_t phys, pgprot_t prot) pgprot_t sect_prot = __pgprot(PMD_TYPE_SECT | pgprot_val(mk_sect_prot(prot))); - /* ioremap_page_range doesn't honour BBM */ - if (pmd_present(READ_ONCE(*pmdp))) - return 0; - BUG_ON(phys & ~PMD_MASK); set_pmd(pmdp, pfn_pmd(__phys_to_pfn(phys), sect_prot)); return 1; -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., is a member of Code Aurora Forum, a Linux Foundation Collaborative Project