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[142.68.80.239]) by smtp.gmail.com with ESMTPSA id lb25-20020a056214319900b0068f9bb1a247sm1871280qvb.19.2024.02.21.16.21.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Feb 2024 16:21:53 -0800 (PST) Received: from jgg by wakko with local (Exim 4.95) (envelope-from ) id 1rcwqW-00DQWC-Tn; Wed, 21 Feb 2024 20:21:52 -0400 Date: Wed, 21 Feb 2024 20:21:52 -0400 From: Jason Gunthorpe To: Pasha Tatashin Cc: Will Deacon , akpm@linux-foundation.org, alim.akhtar@samsung.com, alyssa@rosenzweig.io, asahi@lists.linux.dev, baolu.lu@linux.intel.com, bhelgaas@google.com, cgroups@vger.kernel.org, corbet@lwn.net, david@redhat.com, dwmw2@infradead.org, hannes@cmpxchg.org, heiko@sntech.de, iommu@lists.linux.dev, jernej.skrabec@gmail.com, jonathanh@nvidia.com, joro@8bytes.org, krzysztof.kozlowski@linaro.org, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, lizefan.x@bytedance.com, marcan@marcan.st, mhiramat@kernel.org, m.szyprowski@samsung.com, paulmck@kernel.org, rdunlap@infradead.org, robin.murphy@arm.com, samuel@sholland.org, suravee.suthikulpanit@amd.com, sven@svenpeter.dev, thierry.reding@gmail.com, tj@kernel.org, tomas.mudrunka@gmail.com, vdumpa@nvidia.com, wens@csie.org, yu-cheng.yu@intel.com, rientjes@google.com Subject: Re: [PATCH v3 10/10] iommu: account IOMMU allocated memory Message-ID: <20240222002152.GG13491@ziepe.ca> References: <20231226200205.562565-1-pasha.tatashin@soleen.com> <20231226200205.562565-11-pasha.tatashin@soleen.com> <20240213131210.GA28926@willie-the-truck> <20240216175752.GB2374@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240221_162157_540095_09DB5CF2 X-CRM114-Status: GOOD ( 28.15 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org T24gRnJpLCBGZWIgMTYsIDIwMjQgYXQgMDI6NDg6MDBQTSAtMDUwMCwgUGFzaGEgVGF0YXNoaW4g d3JvdGU6Cj4gT24gRnJpLCBGZWIgMTYsIDIwMjQgYXQgMTI6NTjigK9QTSBXaWxsIERlYWNvbiA8 d2lsbEBrZXJuZWwub3JnPiB3cm90ZToKPiA+Cj4gPiBPbiBUdWUsIEZlYiAxMywgMjAyNCBhdCAx MDo0NDo1M0FNIC0wNTAwLCBQYXNoYSBUYXRhc2hpbiB3cm90ZToKPiA+ID4gPiA+ICBTZWNQYWdl VGFibGVzCj4gPiA+ID4gPiAtICAgICAgICAgICAgICBNZW1vcnkgY29uc3VtZWQgYnkgc2Vjb25k YXJ5IHBhZ2UgdGFibGVzLCB0aGlzIGN1cnJlbnRseQo+ID4gPiA+ID4gLSAgICAgICAgICAgICAg Y3VycmVudGx5IGluY2x1ZGVzIEtWTSBtbXUgYWxsb2NhdGlvbnMgb24geDg2IGFuZCBhcm02NC4K PiA+ID4gPiA+ICsgICAgICAgICAgICAgIE1lbW9yeSBjb25zdW1lZCBieSBzZWNvbmRhcnkgcGFn ZSB0YWJsZXMsIHRoaXMgY3VycmVudGx5IGluY2x1ZGVzCj4gPiA+ID4gPiArICAgICAgICAgICAg ICBLVk0gbW11IGFuZCBJT01NVSBhbGxvY2F0aW9ucyBvbiB4ODYgYW5kIGFybTY0Lgo+ID4gPgo+ ID4gPiBIaSBXaWxsLAo+ID4gPgo+ID4gPiA+IFdoaWxlIEkgY2FuIHNlZSB0aGUgdmFsdWUgaW4g dGhpcyBmb3IgSU9NTVUgbWFwcGluZ3MgbWFuYWdlZCBieSBWRklPLAo+ID4gPiA+IGRvZXNuJ3Qg dGhpcyBlbmQgdXAgY29uZmxhdGluZyB0aGF0IHdpdGggdGhlIG5vcm1hbCBjYXNlIG9mIERNQSBk b21haW5zPwo+ID4gPiA+IEZvciBzeXN0ZW1zIHRoYXQgZS5nLiByZWx5IG9uIGFuIElPTU1VIGZv ciBmdW5jdGlvbmFsIGhvc3QgRE1BLCBpdCBzZWVtcwo+ID4gPiA+IHdyb25nIHRvIHN1YmplY3Qg dGhhdCB0byBhY2NvdW50aW5nIGNvbnN0cmFpbnRzLgo+ID4gPgo+ID4gPiBUaGUgYWNjb3VudGlu ZyBjb25zdHJhaW50cyBhcmUgb25seSBhcHBsaWNhYmxlIHdoZW4gR0ZQX0tFUk5FTF9BQ0NPVU5U Cj4gPiA+IGlzIHBhc3NlZCB0byB0aGUgaW9tbXUgbWFwcGluZyBmdW5jdGlvbnMuIFdlIGRvIHRo YXQgZnJvbSB0aGUgdmZpbywKPiA+ID4gaW9tbXVmZCwgYW5kIHZob3N0LiBXaXRob3V0IHRoaXMg ZmxhZywgdGhlIG1lbW9yeSB1c2VhZ2UgaXMgcmVwb3J0ZWQKPiA+ID4gaW4gL3Byb2MvbWVtaW5m byBhcyBwYXJ0IG9mICBTZWNQYWdlVGFibGVzIGZpZWxkLCBidXQgbm90IGNvbnN0cmFpbmVkCj4g PiA+IGluIGNncm91cC4KPiA+Cj4gPiBUaGFua3MsIFBhc2hhLCB0aGF0IGV4cGxhbmF0aW9uIG1h a2VzIHNlbnNlLiBJIHN0aWxsIGZpbmQgaXQgYml6YXJyZSB0bwo+ID4gaW5jbHVkZSBJT01NVSBh bGxvY2F0aW9ucyBmcm9tIHRoZSBETUEgQVBJIGluIFNlY1BhZ2VUYWJsZXMgdGhvdWdoLCBhbmQK PiA+IEkgd29ycnkgdGhhdCBpdCB3aWxsIGNvbmZ1c2UgcGVvcGxlIHdobyBhcmUgdXNpbmcgdGhh dCBtZXRyaWMgYXMgYSB3YXkKPiA+IHRvIGdldCBhIGZlZWxpbmcgZm9yIGhvdyBtdWNoIG1lbW9y eSBpcyBiZWluZyB1c2VkIGJ5IEtWTSdzIHNlY29uZGFyeQo+ID4gcGFnZS10YWJsZXMuIEFzIGFu IGV4dHJlbWUgZXhhbXBsZSwgaGF2aW5nIGEgbm9uLXplcm8gU2VjUGFnZVRhYmxlcyBjb3VudAo+ ID4gd2l0aG91dCBLVk0gZXZlbiBjb21waWxlZCBpbiBpcyBwcmV0dHkgYml6YXJyZS4KPiAKPiBJ IGFncmVlOyBJIGFsc28gcHJlZmVyIGEgbmV3IGZpZWxkIGluIC9wcm9jL21lbWluZm8gbmFtZWQK PiAnSU9NTVVQYWdlVGFibGVzJy4gVGhpcyBpcyB3aGF0IEkgcHJvcG9zZWQgYXQgTFBDLCBidXQg SSB3YXMgYXNrZWQgdG8KPiByZXVzZSB0aGUgZXhpc3RpbmcgJ1NlY1BhZ2VUYWJsZXMnIGZpZWxk IGluc3RlYWQuIFRoZSByYXRpb25hbGUgd2FzCj4gdGhhdCAnc2Vjb25kYXJ5JyBpbXBsaWVzIG5v dCBvbmx5IEtWTSBwYWdlIHRhYmxlcywgYnV0IGFueSBvdGhlcgo+IG5vbi1yZWd1bGFyIHBhZ2Ug dGFibGVzLgoKUmlnaHQsIFNlYW5DIG1lbnRpb25lZCB0aGF0IHRoZSBwdXJwb3NlIG9mIFNlY1Bh Z2VUYWJsZXMgd2FzIHRvCmNhcHR1cmUgYWxsIG5vbi1tbSBwYWdlIHRhYmxlIHJhZGl4IGFsbG9j YXRpb25zLgoKPiBJIHdvdWxkIGFwcHJlY2lhdGUgdGhlIG9waW5pb24gb2YgSU9NTVUgbWFpbnRh aW5lcnMgb24gdGhpczogaXMgaXQKPiBwcmVmZXJhYmxlIHRvIGJ1bmRsZSB0aGUgaW5mb3JtYXRp b24gd2l0aCAnU2VjUGFnZVRhYmxlcycgb3IgbWFpbnRhaW4KPiBhIHNlcGFyYXRlIGZpZWxkPwoK SSB0aGluayB5b3Ugc2hvdWxkIGtlZXAgdGhlbSB0b2dldGhlci4gSSBkb24ndCB0aGluayB3ZSBz aG91bGQgYmUKaW50cm9kdWNpbmcgbmV3IGNvdW50ZXJzLCBpbiBnZW5lcmFsLgoKRGV0YWlsZWQg bWVtb3J5IHByb2ZpbGUgc2hvdWxkIGNvbWUgZnJvbSBzb21lIGtpbmQgb2YgbW9yZSBkeW5hbWlj IGFuZAp1bml2ZXJzYWwgc2NoZW1lLiBIb3BlZnVsbHkgdGhhdCBvdGhlciBnaWFudCB0aHJlYWQg YWJvdXQgcHJvZmlsaW5nCndpbGwgcmVhY2ggc29tZSBjb25jbHVzaW9uLgoKSmFzb24KCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkxpbnV4LXJvY2tjaGlw IG1haWxpbmcgbGlzdApMaW51eC1yb2NrY2hpcEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9s aXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtcm9ja2NoaXAK