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[142.68.80.239]) by smtp.gmail.com with ESMTPSA id o15-20020a05620a0d4f00b0078ee090baa3sm10508476qkl.10.2024.04.29.08.00.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Apr 2024 08:00:56 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.95) (envelope-from ) id 1s1SUy-001XRE-DN; Mon, 29 Apr 2024 12:00:56 -0300 Date: Mon, 29 Apr 2024 12:00:56 -0300 From: Jason Gunthorpe To: Jean-Philippe Brucker Cc: will@kernel.org, lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, krzk+dt@kernel.org, conor+dt@kernel.org, liviu.dudau@arm.com, sudeep.holla@arm.com, joro@8bytes.org, robin.murphy@arm.com, nicolinc@nvidia.com, ketanp@nvidia.com, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, devicetree@vger.kernel.org Subject: Re: [PATCH 2/3] iommu/of: Support ats-supported device-tree property Message-ID: <20240429150056.GP231144@ziepe.ca> References: <20240429113938.192706-2-jean-philippe@linaro.org> <20240429113938.192706-4-jean-philippe@linaro.org> 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: <20240429113938.192706-4-jean-philippe@linaro.org> On Mon, Apr 29, 2024 at 12:39:38PM +0100, Jean-Philippe Brucker wrote: > Device-tree declares whether a PCI root-complex supports ATS by setting > the "ats-supported" property. Copy this flag into device fwspec to let > IOMMU drivers quickly check if they can enable ATS for a device. > > Signed-off-by: Jean-Philippe Brucker > Tested-by: Ketan Patil > --- > drivers/iommu/of_iommu.c | 9 +++++++++ > 1 file changed, 9 insertions(+) Reviewed-by: Jason Gunthorpe Jason