From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lamorak.hansenpartnership.com (lamorak.hansenpartnership.com [198.37.111.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E8F0419755B; Fri, 19 Dec 2025 12:38:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.37.111.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766147893; cv=none; b=p2MTmEhXvvnM+mP/oGGbziLSjMrJYW2bIAPEDaRI+1HLIEKF5JQwDSlBz2+pLDtF6s9BV+9RuEn7ZMJfWaTQQr/FOHmiaohKQRpPFiuR0qprezbVrzsU3teA1ytFF8moLkga9iBUGkPCrRMG+WNraIGCIKDrSTVTiAjU/6S+IQs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766147893; c=relaxed/simple; bh=TSwYrS6at279AbzsOutig5oci5XmCv0LpRFqRB46LPo=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; 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linux-kernel@vger.kernel.org, Guenter Roeck Date: Fri, 19 Dec 2025 07:38:06 -0500 In-Reply-To: References: <20251218-fix-parisc-conversion-v1-1-4a04d26b0168@nvidia.com> <23342800-92be-4288-a9cd-e9e436a2ef87@gmx.de> <91700541-3c17-4c2f-aa6b-b4e1a36749f9@app.fastmail.com> Autocrypt: addr=James.Bottomley@HansenPartnership.com; prefer-encrypt=mutual; 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 8mT2Eh9SkH+YVOmaKsajgZgrBxA7fWmGoxXswEVxJIFj3vW7yNc0C5HaUdYa5iGOMs4kg2ht4s7yy7NRQuh7BifWjo6BQ6k4S1H+6axZucxhSV1L6zN9d+lr3Xo/vy1unzA== Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.50.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Fri, 2025-12-19 at 09:35 +0100, Marek Szyprowski wrote: > On 18.12.2025 22:28, Leon Romanovsky wrote: > > On Thu, Dec 18, 2025, at 20:27, Helge Deller wrote: > > > On 12/18/25 13:08, Leon Romanovsky wrote: > > > > On 32=E2=80=91bit systems, phys_addr_t is defined as u32. However, > > > > parisc expects physical addresses to be 64=E2=80=91bit values so it= can > > > > store a validity bit in the upper byte. > > > > ... > > > > Also remove the now=E2=80=91obsolete macro. > > > Your patch is OK, but could you please keep the lpa() macro? > > > It's unrelated to your patch, and sometimes we need the lpa() > > > e.g. when adding debug code, so I'd prefer to keep it. > > The parch was already accepted and if Marek agrees, he can easily > > revert the deleted hunk and rebase my parch. > >=20 > > However from upstream perspective, we don't keep code which is not > > used and if this macro would be function, we would get compilation > > warning for that. > >=20 > > Isn't lpa(x/) equal to virt_to_phys(x)? >=20 > I can drop the lpa() related change, but let us know what is the=20 > advantage of it compared to virt_to_phys()? Um, well same as on every architecture: virt_to_phys only gives correct results on the offset map since it's defined as an offset map subtraction; lpa() gives the the CPU view of the mapping through the page table entries, so is correct even in the vmap (and iomap, etc) range. Regards, James