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Fri, 31 Jan 2025 11:49:22 +0000 (GMT) X-AuditID: b6c32a4a-b87c770000004ddd-0b-679cb8c2914d Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p2new.samsung.com (Symantec Messaging Gateway) with SMTP id 45.DB.18949.2C8BC976; Fri, 31 Jan 2025 20:49:22 +0900 (KST) Received: from INBRO002756 (unknown [107.122.3.168]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20250131114920epsmtip24b746f93fd222aa5ed6f3f9749965fcf~fxJ03I1vi0674806748epsmtip27; Fri, 31 Jan 2025 11:49:20 +0000 (GMT) From: "Alim Akhtar" To: "'Devang Tailor'" , , , Cc: , , , , In-Reply-To: <20250108055012.1938530-1-dev.tailor@samsung.com> Subject: RE: [PATCH v2] arm64: dts: add cpu cache information to ExynosAuto-v920 Date: Fri, 31 Jan 2025 17:19:09 +0530 Message-ID: <006401db73d6$2af35fb0$80da1f10$@samsung.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQJnCMNmj1amGSmPwLixER7WDeLbQALDHLFMsgMBQSA= Content-Language: en-us X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprPJsWRmVeSWpSXmKPExsWy7bCmpu7hHXPSDTqfMVms2XuOyeLejmXs FvOPnGO1uHZjIbvFy1n32Cw2Pb7GanF51xw2ixnn9zFZ/N+zg92B02PTqk42j81L6j36tqxi 9Pi8SS6AJSrbJiM1MSW1SCE1Lzk/JTMv3VbJOzjeOd7UzMBQ19DSwlxJIS8xN9VWycUnQNct MwfoFCWFssScUqBQQGJxsZK+nU1RfmlJqkJGfnGJrVJqQUpOgUmBXnFibnFpXrpeXmqJlaGB gZEpUGFCdsa0911MBbsEKvZvv87UwDiXt4uRk0NCwETi6f4zjF2MXBxCArsZJV4svAzlfGKU +NXylQnC+cYocXHGFxaYlut3PkBV7WWUuHd4C5TzklGio289WBWbgK7EjsVtbCC2iECBxMzJ 98GKmAVWMUoc7lsH5HBwcArYSWxexANSIywQJLFg6hF2EJtFQFViUus5VhCbV8BS4tXb9ewQ tqDEyZlPwOYzC2hLLFv4mhniIgWJn0+XsULsspJoXnWOCaJGXOLlUZCZXEA1czkkllxZwQrR 4CLRf/QF1DvCEq+Ob2GHsKUkXva3QdnVEus3zIOq6WCUaNxeA2HbS+x8dJMF5H5mAU2J9bv0 IXbxSfT+fsIEEpYQ4JXoaBOCqFaVaH53FWqKtMTE7m6oCzwk3l+bxTiBUXEWks9mIflsFpIP ZiEsW8DIsopRMrWgODc9tdi0wCgvtRwe4cn5uZsYwSlVy2sH48MHH/QOMTJxMB5ilOBgVhLh jT03I12INyWxsiq1KD++qDQntfgQoykwuCcyS4km5wOTel5JvKGJpYGJmZmZiaWxmaGSOG/z zpZ0IYH0xJLU7NTUgtQimD4mDk6pBiZJh3nz/0awe3ysTxROM+i7LZR65vARx3MzLMqP+fyJ js4OiN+3+q7u1If9cm28WWE3l+c+eWEubn7v1NLDXdvMVnF+42YSfLjOzqQmL/kM17N7t+3f nZq/Omln+QEG45cdfoxHuL9JKKRuWnvjAJtszlZFz8CqbnbOoovFl1gSTzwq/fby79uuA7aR zMeXLE+fZFEQ5J0rO1fgwlJmV7aejj9dYn8WCX74UT6tTDw5wSZT/mjYxcP+CRUuPPEemYGN WQ/O3zhyu26e6B6hb/XWqlv3/fq/N0LoVnLEKpZN/gfF7vI3WIszhzv8d4lVXrsz+eXEAgY5 izefvE5cqLNgO8TVknlDlel9ac7+e0osxRmJhlrMRcWJAGcqBG0yBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmplkeLIzCtJLcpLzFFi42LZdlhJXvfQjjnpBi2bOSzW7D3HZHFvxzJ2 i/lHzrFaXLuxkN3i5ax7bBabHl9jtbi8aw6bxYzz+5gs/u/Zwe7A6bFpVSebx+Yl9R59W1Yx enzeJBfAEsVlk5Kak1mWWqRvl8CVMe+xUcEf/orJBzewNzDe5+li5OSQEDCRuH7nA2MXIxeH kMBuRol9x2eyQySkJa5vnABlC0us/PecHaLoOaPEpVXPmEESbAK6EjsWt7GB2CICJRI7ljSw ghQxC6xjlPj1/DpYt5BAP6PEpqehXYwcHJwCdhKbF/GAmMICARIH9kiDVLAIqEpMaj3HCmLz ClhKvHq7nh3CFpQ4OfMJC4jNLKAt0fuwlRHGXrbwNTPEbQoSP58uY4U4wUqiedU5JogacYmX R4+wT2AUnoVk1Cwko2YhGTULScsCRpZVjJKpBcW56bnFhgVGeanlesWJucWleel6yfm5mxjB MaWltYNxz6oPeocYmTgYDzFKcDArifDGnpuRLsSbklhZlVqUH19UmpNafIhRmoNFSZz32+ve FCGB9MSS1OzU1ILUIpgsEwenVAPToceLC1+6BnPkTPlv7Vs7914/a8Dt+JvCRuK1TZ/iem7/ ffMmbLfxyuZu5TnlL700m5d2btfYruQ73XFH6lFTpbo76Tt3m4ldc+nfJmTTGcZvlLP35sIN 7hd6Ax026r5g4/sr1uzjsH2X0M4b8ka3DgSWPZfUX/Fs5+5PJq0TM07OqhdZe5qfmenevjVC 2w4ky9570HSzoMTyl+GT/I23Ap9KTJSZ6fLu/f3JGecW/VZlk1tav1yu5/bFsPsyvTJLBcMn /V8pv6SFQZSrL3Zna+CNi1K8UvXnl1qzVyhX+G70OtV89/kRvju8W2f6G+bKruX90cV7pubw RLmXayPmRNSIr35T96RratkkTckaJZbijERDLeai4kQApmXWXBgDAAA= X-CMS-MailID: 20250131114922epcas5p25b45c8d4dea3a13b1c8383d50602ecfb X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20250108054224epcas5p399f3d734f8d9f82e5ae75d183d1a5344 References: <20250108055012.1938530-1-dev.tailor@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250131_034932_006215_E5E6ADB8 X-CRM114-Status: GOOD ( 16.47 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Devang > -----Original Message----- > From: Devang Tailor > Sent: Wednesday, January 8, 2025 11:20 AM > To: alim.akhtar=40samsung.com; dev.tailor=40samsung.com; robh=40kernel.or= g; > krzk+dt=40kernel.org; conor+dt=40kernel.org > Cc: devicetree=40vger.kernel.org; linux-arm-kernel=40lists.infradead.org;= linux- > samsung-soc=40vger.kernel.org; linux-kernel=40vger.kernel.org; > faraz.ata=40samsung.com > Subject: =5BPATCH v2=5D arm64: dts: add cpu cache information to ExynosAu= to- > v920 >=20 > Add CPU caches information to its dt nodes so that the same is available = to > userspace via sysfs. This SoC has 64/64 KB I/D cache and 256KB of L2 cach= e for > each core, 2 MB of shared L3 cache for each quad cpu cluster and 1 MB of > shared L3 cache for the dual cpu cluster. >=20 > Signed-off-by: Devang Tailor >=20 > --- > Changes in v2: > - Added L3 cache for all the three cpu clusters > - Corrected L2 cache numbering as a part of review comments from Krzyszto= f > and updated as per cpus clusters. > - Link to v1: https://patchwork.kernel.org/project/linux-arm- > kernel/patch/20241231064350.523713-1-dev.tailor=40samsung.com/ > --- > .../arm64/boot/dts/exynos/exynosautov920.dtsi =7C 127 > ++++++++++++++++++ > 1 file changed, 127 insertions(+) > =5Bsnip=5D > + l3_cache_cl0: l3-cache0 =7B You can add one node for cl0 and cl1, say =22l3_cache_cl0_cl1=22 and Remove the specific node for CL1, because both are same.=20 > + compatible =3D =22cache=22; > + cache-level =3D <3>; > + cache-unified; > + cache-size =3D <0x200000>;/* 2MB L3 cache for cpu > cluster-0 */ > + cache-line-size =3D <64>; > + cache-sets =3D <2048>; > + =7D; > + > + l3_cache_cl1: l3-cache1 =7B > + compatible =3D =22cache=22; > + cache-level =3D <3>; > + cache-unified; > + cache-size =3D <0x200000>;/* 2MB L3 cache for cpu > cluster-1 */ > + cache-line-size =3D <64>; > + cache-sets =3D <2048>; > + =7D; > + =5Bsnip=5D > + l3_cache_cl2: l3-cache2 =7B > 2.34.1