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Thu, 24 May 2018 13:58:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1527170291; bh=vjtEY4OcDBRdLYX571fQ6yHZkYiHNT1yV6G0lGhXPDQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KLKMbcBFwp1/qbf895Kke8B32atrKi/u0Oaacrsv4HFBHrSjxOL6/yZlVXPoFSzXA y55P1rGhIpMK8nz2cpCn8mN+WoRqI2FRP/CpWXaxRi7U7wZciw+eiJZAEVLQ5eZoS4 d2R5zuIrE4gDrXH4/D5V1ij2lWIThdXIi+cuwdyY= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org A08BD60117 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: will.deacon@arm.com, catalin.marinas@arm.com, mark.rutland@arm.com, labbott@redhat.com, akpm@linux-foundation.org Subject: [PATCH v10 4/4] Revert "arm64: Enforce BBM for huge IO/VMAP mappings" Date: Thu, 24 May 2018 19:27:30 +0530 Message-Id: <1527170250-5291-5-git-send-email-cpandya@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1527170250-5291-1-git-send-email-cpandya@codeaurora.org> References: <1527170250-5291-1-git-send-email-cpandya@codeaurora.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180524_065817_416470_30E45447 X-CRM114-Status: GOOD ( 10.57 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chintan Pandya , linux-arm-kernel@lists.infradead.org, toshi.kani@hpe.com, linux-kernel@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP 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 17d9282..defb3bb 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;