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Mon, 28 Nov 2022 00:15:37 -0800 (PST) Date: Mon, 28 Nov 2022 13:45:31 +0530 From: Manivannan Sadhasivam To: Thorsten Leemhuis Cc: catalin.marinas@arm.com, will@kernel.org, robin.murphy@arm.com, amit.pundir@linaro.org, andersson@kernel.org, quic_sibis@quicinc.com, sumit.semwal@linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Revert "arm64: dma: Drop cache invalidation from arch_dma_prep_coherent()" Message-ID: <20221128081531.GA60329@thinkpad> References: <20221114110329.68413-1-manivannan.sadhasivam@linaro.org> <6a5b523d-711b-d809-06b9-fdada64c9c65@leemhuis.info> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <6a5b523d-711b-d809-06b9-fdada64c9c65@leemhuis.info> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221128_001554_058142_FF1C2BAD X-CRM114-Status: GOOD ( 18.88 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gTW9uLCBOb3YgMjgsIDIwMjIgYXQgMDY6NDQ6MTNBTSArMDEwMCwgVGhvcnN0ZW4gTGVlbWh1 aXMgd3JvdGU6Cj4gT24gMTQuMTEuMjIgMTI6MDMsIE1hbml2YW5uYW4gU2FkaGFzaXZhbSB3cm90 ZToKPiA+IFRoaXMgcmV2ZXJ0cyBjb21taXQgYzQ0MDk0ZWVlMzJmMzJmMTc1YWFkYzBlZmNhYzQ0 OWQ5OWIxYmJmNy4KPiA+IAo+ID4gQXMgcmVwb3J0ZWQgYnkgQW1pdCBbMV0sIGRyb3BwaW5nIGNh Y2hlIGludmFsaWRhdGlvbiBmcm9tCj4gPiBhcmNoX2RtYV9wcmVwX2NvaGVyZW50KCkgdHJpZ2dl cnMgYSBjcmFzaCBvbiB0aGUgUXVhbGNvbW0gU004MjUwIHBsYXRmb3JtCj4gPiAobW9zdCBwcm9i YWJseSBvbiBvdGhlciBRY29tIHBsYXRmb3JtcyB0b28pLiBUaGUgcmVhc29uIGlzLCBRY29tCj4g PiBxY29tX3E2djVfbXNzIGRyaXZlciBjb3BpZXMgdGhlIGZpcm13YXJlIG1ldGFkYXRhIGFuZCBz aGFyZXMgaXQgd2l0aCBtb2RlbQo+ID4gZm9yIHZhbGlkYXRpb24uIFRoZSBtb2RlbSBoYXMgYSBz ZWN1cmUgYmxvY2sgKFhQVSkgdGhhdCB3aWxsIHRyaWdnZXIgYQo+ID4gd2hvbGUgc3lzdGVtIGNy YXNoIGlmIHRoZSBzaGFyZWQgbWVtb3J5IGlzIGFjY2Vzc2VkIGJ5IHRoZSBDUFUgd2hpbGUgbW9k ZW0KPiA+IGlzIHBva2luZyBhdCBpdC4KPiA+IFsuLi5dCj4gPiBbMV0gaHR0cHM6Ly9sb3JlLmtl cm5lbC5vcmcvbGludXgtYXJtLWtlcm5lbC9DQU1pMUhkMVZCQ0ZoZjcrRVhXSFFXY0d5NGs9dGN5 TGE3UkdpRmRwcnRSbmVnU0cwTXdAbWFpbC5nbWFpbC5jb20vCj4gPgo+IAo+IEkgaGF2ZSBBbWl0 J3MgcmVwb3J0IG9uIHRoZSBsaXN0IG9mIHRyYWNrZWQgcmVncmVzc2lvbnMuIEkgYWxzbyBub3Rp Y2VkCj4gdGhlIHByb3Bvc2VkIGNoYW5nZSAiYXJtNjQ6IGR0czogcWNvbTogc2M4MjgweHA6IGZp eCBQQ0llIERNQSBjb2hlcmVuY3kiOgo+IGh0dHBzOi8vbG9yZS5rZXJuZWwub3JnL2FsbC8yMDIy MTEyNDE0MjUwMS4yOTMxNC0xLWpvaGFuK2xpbmFyb0BrZXJuZWwub3JnLwo+IAo+IEkgaGF2ZSBu byBleHBlcnRpc2UgaW4gdGhpcyBhcmVhLCBidXQgaXQgbG9va2VkIHNvbWV3aGF0IHJlbGF0ZWQg dG8gbXkKPiBleWVzLCBzbyBwbGVhc2UgYWxsb3cgbWUgdG8gcXVpY2tseSBhc2s6IGlzIHRoYXQg cmVsYXRlZCBvciBldmVuCj4gc3VwcG9zZWQgdG8gZml4IEFtaXQncyByZWdyZXNzaW9uPwo+IAoK VGhlIHByb3Bvc2VkIHBhdGNoIGRvZXNuJ3QgZml4IHRoZSByZWdyZXNzaW9uIHJlcG9ydGVkIGJ5 IEFtaXQuIEJ1dCB0aGUgcGF0Y2gKaXRzZWxmIGZpeGVzIGFuIGlzc3VlIHRoYXQgbWlnaHQgYmUg dHJpZ2dlcmVkIG1vcmUgZnJlcXVlbnRseSBieSBjNDQwOTRlZWUzMmYuCgpUaGFua3MsCk1hbmkK Cj4gQ2lhbywgVGhvcnN0ZW4KCi0tIArgrq7grqPgrr/grrXgrqPgr43grqPgrqngr40g4K6a4K6k 4K6+4K6a4K6/4K614K6u4K+NCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVs QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9s aXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==