From nobody Thu Oct 2 10:58:20 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 F34D130C61B; Thu, 18 Sep 2025 14:10:04 +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=1758204605; cv=none; b=GoukwDG2eYuz8TDUnGoYj9/MC33BFfRWdtWe9R2ANkPegqs/bf4H425b9vyQDEbYNxjRbIIRhTK/8X3E7moAsdNlymR79HLndVjqQ089anR9UdfeHCxfgau5pom4RhOX96M4gvV0GHeR9aro6PJsf9Buva4SSNK0DXWBGsn15uM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758204605; c=relaxed/simple; bh=ZvzOne7JVuKRt51UWjTla7x7wVEVuv97Aoq0lfqLgUE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=L0Uwm/NV9I8fTUbAFKMBRSC3vQyXyTb0HM+S7NDfth3w71SMIg6yBBXc13VzwIpdM2nHbCozNXXJIUuIRGa0+7hWJU0KOn8pi1je1WTez4j0Efo+IzmWGjtjIrVQp3RhSVpfxBGROPngDsbkfI6v9XC4KhoNLaZoGOqV5C4AfYg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=O2sUbafD; 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="O2sUbafD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F01F1C4CEE7; Thu, 18 Sep 2025 14:10:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758204604; bh=ZvzOne7JVuKRt51UWjTla7x7wVEVuv97Aoq0lfqLgUE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=O2sUbafDsMkWNheNKKvFdT0pthF4IgeoVmIjIo++piQ6FogpLWmh11dTZNVWb3Lgt xVp0UuxUxSl+/XMTgvDsaAyPnd2xLvAzkXpBLbm5vCRv96x8WHPfJE+qiNWEth97mP ++DZ3RgCBKBQkuqybTvt076vShyirPkNS59GSoA9yXyxPnHzGJEzNG8dO2TZw9CfZ8 X9bZOFqGSa2JOAjg4fXO6khWdhV9Kbgmm4YBoxToy/OHtelnqrqIRnZVosrpwLWJpK Ujl4jM6AeazDmL80IJtF4LMtsDUun/4izas+/borBV4rJ/iv+dIbicjUwqa9UP2Va1 AojXJZ3AWcy9g== From: Leon Romanovsky To: Marek Szyprowski Cc: Leon Romanovsky , Jason Gunthorpe , iommu@lists.linux.dev, Juergen Gross , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Russell King , Stefano Stabellini , xen-devel@lists.xenproject.org Subject: [PATCH v4 2/6] dma-mapping: convert dummy ops to physical address mapping Date: Thu, 18 Sep 2025 17:09:25 +0300 Message-ID: <9a1d5ba5f4e5c4ac1216253e35a4a6a7cb941802.1758203802.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. Reviewed-by: Jason Gunthorpe Signed-off-by: Leon Romanovsky --- 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