From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f53.google.com (mail-oo1-f53.google.com [209.85.161.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8E455386 for ; Thu, 30 Nov 2023 00:39:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ziepe.ca Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ziepe.ca Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ziepe.ca header.i=@ziepe.ca header.b="htpgIwRF" Received: by mail-oo1-f53.google.com with SMTP id 006d021491bc7-58d52e0065fso186776eaf.0 for ; Wed, 29 Nov 2023 16:39:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; t=1701304792; x=1701909592; darn=lists.linux.dev; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=dqKTf6r/9DX5X0G9N0YPszfAss74aB4UlJwKc4ipXlY=; b=htpgIwRFHaIEjl9itPq9xbgt3M9d7TG5AyqdhUL30SRmxI78U2uWg2e3jjaxRuted3 luPtViNn1G12mdGj0AvNgMyqKfid6lSJvIn2SlCcc6yMUf8eMZDBRFYnqrsVzxMq+7C9 6UIZ6/igNCwMyBtmsqF0F/kwPfeutBVwL186Ft3jy5cCOtJLjdykEBDybPF+atNefbCa edcyCYbX93earG/WVQOWjuqJ5kJDNUpSXtNJhA+MoJpwW+YwXC4R4RJd6tk4XbBpGYok yw4WrOHs4qsv6+QUfv13Ja0NRIsMucJdZ72rp4zJHPbkEpPxELB0k7R+WktgDafMBepU a8hQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701304792; x=1701909592; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=dqKTf6r/9DX5X0G9N0YPszfAss74aB4UlJwKc4ipXlY=; b=YqIPY+ZUGrOq540NPuVYuePmSjEp485t2YDITICYQUFu0CDmnylYpN0P/dytSzRdbD 7ychPClUy/dzOcg3urmharZbgd2rwFrxAd6LymyqZSWYv4rbjmOO6vibhTye9mJGxPHk j5R8tCHt4pvinJxO2FzWmU7nhUb/aiSLdyyVOg2shEwi40NfgUumqx4W6cTVP9ElmoTN rB8pfp68PY36W9MiU2IE7fVSaOSAuT7cRu8uc12NaEJ4IV0EIwlk8yAaOqEQHJEk4wtS 7SwZYjPVS1fD1+S/b1FYsnaTP2JSOPmHGeIh422mUurtxFqISSqQ3gXAMlyEssjxO8HK Yxsw== X-Gm-Message-State: AOJu0Yxips18IReX+7nxoggN2eVnZt0E+brEj3E/ZGcOMaZ79hfzGD9y rtIt5kLo7kosYf1Bj2qan4seYw== X-Google-Smtp-Source: AGHT+IG4kpqJkp5MuGe0QWOyJQ+HDuDWisfSFN2LiYZ3lNwDJg400B3FZHlbHx5WpKar2Jc43DZwNA== X-Received: by 2002:a4a:a645:0:b0:58d:6bf6:4daf with SMTP id j5-20020a4aa645000000b0058d6bf64dafmr7941560oom.2.1701304792652; Wed, 29 Nov 2023 16:39:52 -0800 (PST) Received: from ziepe.ca (hlfxns017vw-142-134-23-187.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.134.23.187]) by smtp.gmail.com with ESMTPSA id i14-20020a4aab0e000000b0057327cecdd8sm2410792oon.10.2023.11.29.16.39.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Nov 2023 16:39:52 -0800 (PST) Received: from jgg by wakko with local (Exim 4.95) (envelope-from ) id 1r8V5r-005qzk-3H; Wed, 29 Nov 2023 20:39:51 -0400 Date: Wed, 29 Nov 2023 20:39:51 -0400 From: Jason Gunthorpe To: Robin Murphy Cc: Joerg Roedel , Christoph Hellwig , Vineet Gupta , Russell King , Catalin Marinas , Will Deacon , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , Paul Walmsley , Palmer Dabbelt , Albert Ou , Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Suravee Suthikulpanit , David Woodhouse , Lu Baolu , Niklas Schnelle , Matthew Rosato , Gerald Schaefer , Jean-Philippe Brucker , Rob Herring , Frank Rowand , Marek Szyprowski , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, iommu@lists.linux.dev, devicetree@vger.kernel.org Subject: Re: [PATCH 3/7] ACPI/IORT: Handle memory address size limits as limits Message-ID: <20231130003951.GA1394392@ziepe.ca> References: <2ae6199a9cf035c1defd42e48675b827f41cdc95.1701268753.git.robin.murphy@arm.com> Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2ae6199a9cf035c1defd42e48675b827f41cdc95.1701268753.git.robin.murphy@arm.com> On Wed, Nov 29, 2023 at 05:43:00PM +0000, Robin Murphy wrote: > Return the Root Complex/Named Component memory address size limit as an > inclusive limit value, rather than an exclusive size. This saves us > having to special-case 64-bit overflow, and simplifies our caller too. > > Signed-off-by: Robin Murphy > --- > drivers/acpi/arm64/dma.c | 9 +++------ > drivers/acpi/arm64/iort.c | 18 ++++++++---------- > include/linux/acpi_iort.h | 4 ++-- > 3 files changed, 13 insertions(+), 18 deletions(-) Reviewed-by: Jason Gunthorpe Jason