From nobody Thu Oct 2 15:32:33 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 566972E3B10; Tue, 16 Sep 2025 07:32:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758007948; cv=none; b=ERiZOHycm8EQ02rD6BujWGaYj71AR+1rAp0ikCZHAvt3deXT3mknkoR4qo7lu3DI26+kny5ZoIVZA/B/o+tQdVx9kYeMB9nU7o81SJ3McQ66fsIO4Hh9teZI33FWMLu6PH6lea8DIFXQGkZK/y6Kn8lQ4p57Imwf9tmttPd27vQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758007948; c=relaxed/simple; bh=SVYxxrO+Wiw9QRhQmJDc9G1iV7Y+Q+GC+uaaZIVFlE0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=LWV77UOdpdBq/mkJ8xWqMBDeOeOjllny50m8D3ihr7HQmY06/9T1IwyXyqKQYI8nLti7V5pSAg9B6PFQFMLExvNTti7vZ7oCqVl/PD07CVzi0qFZpiCgB9II1V1TaSS5Vo3yGMhrOKOz7/TqoJfTsQepEMnnPHPP19LnD1HJq3A= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Q5l/YYnG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Q5l/YYnG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1F654C4CEF9; Tue, 16 Sep 2025 07:32:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758007946; bh=SVYxxrO+Wiw9QRhQmJDc9G1iV7Y+Q+GC+uaaZIVFlE0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Q5l/YYnGeY5KmQe4DG4hjF78LVZ8OXOQ+pB82BBUmJn6edzLHgSuj2CWbR9tHQxuz V+i2NLz/v8SB/2m9fmgh7Aayf1tH00ZDyW2uEyAVSZYOm01e1H2+8efBN6AHWQoxx+ cFMIiv6Uh4+Xl2Gd0lgkakm1LudKj5e8guvsK2h+fFY3lMpaM+oT5lVnMCPWb0ALfC 1KJroWeewgWN9weAh82UzGzikEEJFZFkZGjEoumsterOmHtgbHTVHFvm9ZGc1NjzEk pJ3YP3SnB0PUJUy+TNkIYziVcZGcUIh2xoe3przgP0AhnQXr0IRZnYGJbOcMWn3vS4 SZgbnZULDbOuw== From: Leon Romanovsky To: Marek Szyprowski Cc: Leon Romanovsky , Jason Gunthorpe , iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Russell King Subject: [PATCH v3 2/4] dma-mapping: convert dummy ops to physical address mapping Date: Tue, 16 Sep 2025 10:32:05 +0300 Message-ID: <3b54fbe896086adc0f3fb90a2a1a2e3bb3ff9de4.1758006942.git.leon@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Leon Romanovsky Change dma_dummy_map_page and dma_dummy_unmap_page routines to accept physical address and rename them. Signed-off-by: Leon Romanovsky Reviewed-by: Jason Gunthorpe --- kernel/dma/dummy.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/kernel/dma/dummy.c b/kernel/dma/dummy.c index 92de80e5b057e..16a51736a2a39 100644 --- a/kernel/dma/dummy.c +++ b/kernel/dma/dummy.c @@ -11,17 +11,16 @@ static int dma_dummy_mmap(struct device *dev, struct vm= _area_struct *vma, return -ENXIO; } =20 -static dma_addr_t dma_dummy_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, enum dma_data_direction dir, - unsigned long attrs) +static dma_addr_t dma_dummy_map_phys(struct device *dev, phys_addr_t phys, + size_t size, enum dma_data_direction dir, unsigned long attrs) { return DMA_MAPPING_ERROR; } -static void dma_dummy_unmap_page(struct device *dev, dma_addr_t dma_handle, +static void dma_dummy_unmap_phys(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction dir, unsigned long attrs) { /* - * Dummy ops doesn't support map_page, so unmap_page should never be + * Dummy ops doesn't support map_phys, so unmap_page should never be * called. */ WARN_ON_ONCE(true); @@ -51,8 +50,8 @@ static int dma_dummy_supported(struct device *hwdev, u64 = mask) =20 const struct dma_map_ops dma_dummy_ops =3D { .mmap =3D dma_dummy_mmap, - .map_page =3D dma_dummy_map_page, - .unmap_page =3D dma_dummy_unmap_page, + .map_phys =3D dma_dummy_map_phys, + .unmap_phys =3D dma_dummy_unmap_phys, .map_sg =3D dma_dummy_map_sg, .unmap_sg =3D dma_dummy_unmap_sg, .dma_supported =3D dma_dummy_supported, --=20 2.51.0