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Mon, 02 Dec 2024 18:46:19 -0800 (PST) X-Google-Smtp-Source: AGHT+IHfseCusa820FVRmwFbT0mZlAFscpctykYf9htwJewCjZEfnFSGZPbVXSuGQjueevB6XoMygQ== X-Received: by 2002:a17:902:e841:b0:215:9a6a:63cb with SMTP id d9443c01a7336-215bd200df9mr12107185ad.28.1733193979272; Mon, 02 Dec 2024 18:46:19 -0800 (PST) Received: from [10.72.112.107] ([43.228.180.230]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2159ebee334sm21262215ad.67.2024.12.02.18.46.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Dec 2024 18:46:18 -0800 (PST) Message-ID: <65823dec-8af2-494c-88a6-0d4683cbf5df@redhat.com> Date: Tue, 3 Dec 2024 12:46:13 +1000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64/mm: Drop INIT_MM_CONTEXT() To: Anshuman Khandual , linux-arm-kernel@lists.infradead.org Cc: Catalin Marinas , Will Deacon , Ard Biesheuvel , Ryan Roberts , Mark Rutland , linux-kernel@vger.kernel.org References: <20241202043553.29592-1-anshuman.khandual@arm.com> Content-Language: en-US From: Gavin Shan In-Reply-To: <20241202043553.29592-1-anshuman.khandual@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 12/2/24 2:35 PM, Anshuman Khandual wrote: > Platform override for INIT_MM_CONTEXT() is redundant because swapper_pg_dir > always gets assigned as the pgd during init_mm initialization. So just drop > this override on arm64. > > Originally this override was added via the 'commit 2b5548b68199 ("arm64/mm: > Separate boot-time page tables from swapper_pg_dir")' because non standard > init_pg_dir was assigned as the pgd. Subsequently it was changed as default > swapper_pg_dir by the 'commit ba5b0333a847 ("arm64: mm: omit redundant > remap of kernel image")', which might have also just dropped this override. > > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Ard Biesheuvel > Cc: Ryan Roberts > Cc: Mark Rutland > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > Signed-off-by: Anshuman Khandual > --- > This patch applies on v6.13-rc1 > > arch/arm64/include/asm/mmu.h | 3 --- > 1 file changed, 3 deletions(-) > Reviewed-by: Gavin Shan