From: Baolu Lu <baolu.lu@linux.intel.com>
To: Jason Gunthorpe <jgg@nvidia.com>,
Alim Akhtar <alim.akhtar@samsung.com>,
Alyssa Rosenzweig <alyssa@rosenzweig.io>,
Albert Ou <aou@eecs.berkeley.edu>,
asahi@lists.linux.dev, David Woodhouse <dwmw2@infradead.org>,
Heiko Stuebner <heiko@sntech.de>,
iommu@lists.linux.dev, Jernej Skrabec <jernej.skrabec@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Joerg Roedel <joro@8bytes.org>,
Krzysztof Kozlowski <krzk@kernel.org>,
linux-arm-kernel@lists.infradead.org,
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linux-rockchip@lists.infradead.org,
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Marek Szyprowski <m.szyprowski@samsung.com>,
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Robin Murphy <robin.murphy@arm.com>,
Samuel Holland <samuel@sholland.org>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
Sven Peter <sven@svenpeter.dev>,
Thierry Reding <thierry.reding@gmail.com>,
Tomasz Jeznach <tjeznach@rivosinc.com>,
Krishna Reddy <vdumpa@nvidia.com>, Chen-Yu Tsai <wens@csie.org>,
Will Deacon <will@kernel.org>
Cc: Bagas Sanjaya <bagasdotme@gmail.com>,
Joerg Roedel <jroedel@suse.de>,
Pasha Tatashin <pasha.tatashin@soleen.com>,
patches@lists.linux.dev, David Rientjes <rientjes@google.com>,
Matthew Wilcox <willy@infradead.org>
Subject: Re: [PATCH v2 15/23] iommu/pages: Move the __GFP_HIGHMEM checks into the common code
Date: Sat, 15 Feb 2025 17:10:32 +0800 [thread overview]
Message-ID: <d68dd230-96c1-44c2-b8f5-59f87fcca25a@linux.intel.com> (raw)
In-Reply-To: <15-v2-545d29711869+a76b5-iommu_pages_jgg@nvidia.com>
On 2/15/25 01:07, Jason Gunthorpe wrote:
> The entire allocator API is built around using the kernel virtual address,
> it is illegal to pass GFP_HIGHMEM in as a GFP flag. Block it in the common
> code. Remove the duplicated checks from drivers.
>
> Signed-off-by: Jason Gunthorpe<jgg@nvidia.com>
> ---
> drivers/iommu/io-pgtable-arm.c | 2 --
> drivers/iommu/io-pgtable-dart.c | 1 -
> drivers/iommu/iommu-pages.c | 4 ++++
> 3 files changed, 4 insertions(+), 3 deletions(-)
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
next prev parent reply other threads:[~2025-02-15 9:15 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-14 17:07 [PATCH v2 00/23] iommu: Further abstract iommu-pages Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 01/23] iommu/terga: Do not use struct page as the handle for as->pd memory Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 02/23] iommu/tegra: Do not use struct page as the handle for pts Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 03/23] iommu/pages: Remove __iommu_alloc_pages()/__iommu_free_pages() Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 04/23] iommu/pages: Make iommu_put_pages_list() work with high order allocations Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 05/23] iommu/pages: Remove the order argument to iommu_free_pages() Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 06/23] iommu/pages: Remove iommu_free_page() Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 07/23] iommu/pages: De-inline the substantial functions Jason Gunthorpe
2025-02-15 8:48 ` Baolu Lu
2025-02-18 20:19 ` Jason Gunthorpe
2025-02-19 2:56 ` Baolu Lu
2025-02-14 17:07 ` [PATCH v2 08/23] iommu/vtd: Use virt_to_phys() Jason Gunthorpe
2025-02-15 8:49 ` Baolu Lu
2025-02-14 17:07 ` [PATCH v2 09/23] iommu/pages: Formalize the freelist API Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 10/23] iommu/riscv: Convert to use struct iommu_pages_list Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 11/23] iommu/amd: " Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 12/23] iommu: Change iommu_iotlb_gather to use iommu_page_list Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 13/23] iommu/pages: Remove iommu_put_pages_list_old and the _Generic Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 14/23] iommu/pages: Move from struct page to struct ioptdesc and folio Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 15/23] iommu/pages: Move the __GFP_HIGHMEM checks into the common code Jason Gunthorpe
2025-02-15 9:10 ` Baolu Lu [this message]
2025-02-14 17:07 ` [PATCH v2 16/23] iommu/pages: Allow sub page sizes to be passed into the allocator Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 17/23] iommu/amd: Change rlookup, irq_lookup, and alias to use kvalloc() Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 18/23] iommu/amd: Use roundup_pow_two() instead of get_order() Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 19/23] iommu/riscv: Update to use iommu_alloc_pages_node_lg2() Jason Gunthorpe
2025-02-20 19:35 ` Tomasz Jeznach
2025-02-14 17:07 ` [PATCH v2 20/23] iommu: Update various drivers to pass in lg2sz instead of order to iommu pages Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 21/23] iommu/pages: Remove iommu_alloc_page/pages() Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 22/23] iommu/pages: Remove iommu_alloc_page_node() Jason Gunthorpe
2025-02-14 17:07 ` [PATCH v2 23/23] iommu/pages: Remove iommu_alloc_pages_node() Jason Gunthorpe
2025-02-15 9:47 ` Baolu Lu
2025-02-18 20:21 ` Jason Gunthorpe
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