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[80.187.123.114]) by smtp.gmail.com with ESMTPSA id i8sm1619354ejg.84.2020.10.15.06.57.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 15 Oct 2020 06:57:24 -0700 (PDT) Subject: Re: [PATCH v4 01/10] drm/vram-helper: Remove invariant parameters from internal kmap function To: Thomas Zimmermann , maarten.lankhorst@linux.intel.com, mripard@kernel.org, airlied@linux.ie, daniel@ffwll.ch, sam@ravnborg.org, alexander.deucher@amd.com, christian.koenig@amd.com, kraxel@redhat.com, l.stach@pengutronix.de, linux+etnaviv@armlinux.org.uk, christian.gmeiner@gmail.com, inki.dae@samsung.com, jy0922.shim@samsung.com, sw0312.kim@samsung.com, kyungmin.park@samsung.com, kgene@kernel.org, krzk@kernel.org, yuq825@gmail.com, bskeggs@redhat.com, robh@kernel.org, tomeu.vizoso@collabora.com, steven.price@arm.com, alyssa.rosenzweig@collabora.com, hjc@rock-chips.com, heiko@sntech.de, hdegoede@redhat.com, sean@poorly.run, eric@anholt.net, oleksandr_andrushchenko@epam.com, ray.huang@amd.com, sumit.semwal@linaro.org, emil.velikov@collabora.com, luben.tuikov@amd.com, apaneers@amd.com, linus.walleij@linaro.org, melissa.srw@gmail.com, chris@chris-wilson.co.uk, miaoqinglang@huawei.com References: <20201015123806.32416-1-tzimmermann@suse.de> <20201015123806.32416-2-tzimmermann@suse.de> From: =?UTF-8?Q?Christian_K=c3=b6nig?= Message-ID: <06cab96a-5224-46dc-dbd2-8eb4950946cc@gmail.com> Date: Thu, 15 Oct 2020 15:57:14 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201015123806.32416-2-tzimmermann@suse.de> Content-Language: en-US Cc: linux-samsung-soc@vger.kernel.org, lima@lists.freedesktop.org, spice-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org, etnaviv@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, virtualization@lists.linux-foundation.org, linaro-mm-sig@lists.linaro.org, linux-rockchip@lists.infradead.org, dri-devel@lists.freedesktop.org, Daniel Vetter , xen-devel@lists.xenproject.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: christian.koenig@amd.com Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" QW0gMTUuMTAuMjAgdW0gMTQ6Mzcgc2NocmllYiBUaG9tYXMgWmltbWVybWFubjoKPiBUaGUgcGFy YW1ldGVycyBtYXAgYW5kIGlzX2lvbWVtIGFyZSBhbHdheXMgb2YgdGhlIHNhbWUgdmFsdWUuIFJl bW92ZWQgdGhlbQo+IHRvIHByZXBhcmVzIHRoZSBmdW5jdGlvbiBmb3IgY29udmVyc2lvbiB0byBz dHJ1Y3QgZG1hX2J1Zl9tYXAuCj4KPiB2NDoKPiAJKiBkb24ndCBjaGVjayBmb3IgIWttYXAtPnZp cnR1YWw7IHdpbGwgYWx3YXlzIGJlIGZhbHNlCj4KPiBTaWduZWQtb2ZmLWJ5OiBUaG9tYXMgWmlt bWVybWFubiA8dHppbW1lcm1hbm5Ac3VzZS5kZT4KPiBSZXZpZXdlZC1ieTogRGFuaWVsIFZldHRl ciA8ZGFuaWVsLnZldHRlckBmZndsbC5jaD4KClJldmlld2VkLWJ5OiBDaHJpc3RpYW4gS8O2bmln IDxjaHJpc3RpYW4ua29lbmlnQGFtZC5jb20+Cgo+IC0tLQo+ICAgZHJpdmVycy9ncHUvZHJtL2Ry bV9nZW1fdnJhbV9oZWxwZXIuYyB8IDE4ICsrKystLS0tLS0tLS0tLS0tLQo+ICAgMSBmaWxlIGNo YW5nZWQsIDQgaW5zZXJ0aW9ucygrKSwgMTQgZGVsZXRpb25zKC0pCj4KPiBkaWZmIC0tZ2l0IGEv ZHJpdmVycy9ncHUvZHJtL2RybV9nZW1fdnJhbV9oZWxwZXIuYyBiL2RyaXZlcnMvZ3B1L2RybS9k cm1fZ2VtX3ZyYW1faGVscGVyLmMKPiBpbmRleCAzMjEzNDI5Zjg0NDQuLjJkNWVkMzA1MThmMSAx MDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vZHJtX2dlbV92cmFtX2hlbHBlci5jCj4gKysr IGIvZHJpdmVycy9ncHUvZHJtL2RybV9nZW1fdnJhbV9oZWxwZXIuYwo+IEBAIC0zODIsMzIgKzM4 MiwyMiBAQCBpbnQgZHJtX2dlbV92cmFtX3VucGluKHN0cnVjdCBkcm1fZ2VtX3ZyYW1fb2JqZWN0 ICpnYm8pCj4gICB9Cj4gICBFWFBPUlRfU1lNQk9MKGRybV9nZW1fdnJhbV91bnBpbik7Cj4gICAK PiAtc3RhdGljIHZvaWQgKmRybV9nZW1fdnJhbV9rbWFwX2xvY2tlZChzdHJ1Y3QgZHJtX2dlbV92 cmFtX29iamVjdCAqZ2JvLAo+IC0JCQkJICAgICAgYm9vbCBtYXAsIGJvb2wgKmlzX2lvbWVtKQo+ ICtzdGF0aWMgdm9pZCAqZHJtX2dlbV92cmFtX2ttYXBfbG9ja2VkKHN0cnVjdCBkcm1fZ2VtX3Zy YW1fb2JqZWN0ICpnYm8pCj4gICB7Cj4gICAJaW50IHJldDsKPiAgIAlzdHJ1Y3QgdHRtX2JvX2tt YXBfb2JqICprbWFwID0gJmdiby0+a21hcDsKPiArCWJvb2wgaXNfaW9tZW07Cj4gICAKPiAgIAlp ZiAoZ2JvLT5rbWFwX3VzZV9jb3VudCA+IDApCj4gICAJCWdvdG8gb3V0Owo+ICAgCj4gLQlpZiAo a21hcC0+dmlydHVhbCB8fCAhbWFwKQo+IC0JCWdvdG8gb3V0Owo+IC0KPiAgIAlyZXQgPSB0dG1f Ym9fa21hcCgmZ2JvLT5ibywgMCwgZ2JvLT5iby5udW1fcGFnZXMsIGttYXApOwo+ICAgCWlmIChy ZXQpCj4gICAJCXJldHVybiBFUlJfUFRSKHJldCk7Cj4gICAKPiAgIG91dDoKPiAtCWlmICgha21h cC0+dmlydHVhbCkgewo+IC0JCWlmIChpc19pb21lbSkKPiAtCQkJKmlzX2lvbWVtID0gZmFsc2U7 Cj4gLQkJcmV0dXJuIE5VTEw7IC8qIG5vdCBtYXBwZWQ7IGRvbid0IGluY3JlbWVudCByZWYgKi8K PiAtCX0KPiAgIAkrK2diby0+a21hcF91c2VfY291bnQ7Cj4gLQlpZiAoaXNfaW9tZW0pCj4gLQkJ cmV0dXJuIHR0bV9rbWFwX29ial92aXJ0dWFsKGttYXAsIGlzX2lvbWVtKTsKPiAtCXJldHVybiBr bWFwLT52aXJ0dWFsOwo+ICsJcmV0dXJuIHR0bV9rbWFwX29ial92aXJ0dWFsKGttYXAsICZpc19p b21lbSk7Cj4gICB9Cj4gICAKPiAgIHN0YXRpYyB2b2lkIGRybV9nZW1fdnJhbV9rdW5tYXBfbG9j a2VkKHN0cnVjdCBkcm1fZ2VtX3ZyYW1fb2JqZWN0ICpnYm8pCj4gQEAgLTQ1Miw3ICs0NDIsNyBA QCB2b2lkICpkcm1fZ2VtX3ZyYW1fdm1hcChzdHJ1Y3QgZHJtX2dlbV92cmFtX29iamVjdCAqZ2Jv KQo+ICAgCXJldCA9IGRybV9nZW1fdnJhbV9waW5fbG9ja2VkKGdibywgMCk7Cj4gICAJaWYgKHJl dCkKPiAgIAkJZ290byBlcnJfdHRtX2JvX3VucmVzZXJ2ZTsKPiAtCWJhc2UgPSBkcm1fZ2VtX3Zy YW1fa21hcF9sb2NrZWQoZ2JvLCB0cnVlLCBOVUxMKTsKPiArCWJhc2UgPSBkcm1fZ2VtX3ZyYW1f a21hcF9sb2NrZWQoZ2JvKTsKPiAgIAlpZiAoSVNfRVJSKGJhc2UpKSB7Cj4gICAJCXJldCA9IFBU Ul9FUlIoYmFzZSk7Cj4gICAJCWdvdG8gZXJyX2RybV9nZW1fdnJhbV91bnBpbl9sb2NrZWQ7Cgpf X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpWaXJ0dWFsaXph dGlvbiBtYWlsaW5nIGxpc3QKVmlydHVhbGl6YXRpb25AbGlzdHMubGludXgtZm91bmRhdGlvbi5v cmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vdmly dHVhbGl6YXRpb24=