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[35.194.87.55]) by smtp.gmail.com with ESMTPSA id e1-20020a0cb441000000b0067a35608186sm795252qvf.28.2023.11.30.12.15.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Nov 2023 12:15:11 -0800 (PST) From: Pasha Tatashin To: akpm@linux-foundation.org, alim.akhtar@samsung.com, alyssa@rosenzweig.io, asahi@lists.linux.dev, baolu.lu@linux.intel.com, bhelgaas@google.com, cgroups@vger.kernel.org, corbet@lwn.net, david@redhat.com, dwmw2@infradead.org, hannes@cmpxchg.org, heiko@sntech.de, iommu@lists.linux.dev, jernej.skrabec@gmail.com, jonathanh@nvidia.com, joro@8bytes.org, krzysztof.kozlowski@linaro.org, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, lizefan.x@bytedance.com, marcan@marcan.st, mhiramat@kernel.org, m.szyprowski@samsung.com, pasha.tatashin@soleen.com, paulmck@kernel.org, rdunlap@infradead.org, robin.murphy@arm.com, samuel@sholland.org, suravee.suthikulpanit@amd.com, sven@svenpeter.dev, thierry.reding@gmail.com, tj@kernel.org, tomas.mudrunka@gmail.com, vdumpa@nvidia.com, wens@csie.org, will@kernel.org, yu-cheng.yu@intel.com Subject: [PATCH v2 04/10] iommu/io-pgtable-dart: use page allocation function provided by iommu-pages.h Date: Thu, 30 Nov 2023 20:14:58 +0000 Message-ID: <20231130201504.2322355-5-pasha.tatashin@soleen.com> X-Mailer: git-send-email 2.43.0.rc2.451.g8631bc7472-goog In-Reply-To: <20231130201504.2322355-1-pasha.tatashin@soleen.com> References: <20231130201504.2322355-1-pasha.tatashin@soleen.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Convert iommu/io-pgtable-dart.c to use the new page allocation functions provided in iommu-pages.h. Signed-off-by: Pasha Tatashin Reviewed-by: Janne Grunau Acked-by: David Rientjes --- drivers/iommu/io-pgtable-dart.c | 37 +++++++++++++-------------------- 1 file changed, 14 insertions(+), 23 deletions(-) diff --git a/drivers/iommu/io-pgtable-dart.c b/drivers/iommu/io-pgtable-dar= t.c index 74b1ef2b96be..ad28031e1e93 100644 --- a/drivers/iommu/io-pgtable-dart.c +++ b/drivers/iommu/io-pgtable-dart.c @@ -23,6 +23,7 @@ #include =20 #include +#include "iommu-pages.h" =20 #define DART1_MAX_ADDR_BITS 36 =20 @@ -106,18 +107,12 @@ static phys_addr_t iopte_to_paddr(dart_iopte pte, return paddr; } =20 -static void *__dart_alloc_pages(size_t size, gfp_t gfp, - struct io_pgtable_cfg *cfg) +static void *__dart_alloc_pages(size_t size, gfp_t gfp) { int order =3D get_order(size); - struct page *p; =20 VM_BUG_ON((gfp & __GFP_HIGHMEM)); - p =3D alloc_pages(gfp | __GFP_ZERO, order); - if (!p) - return NULL; - - return page_address(p); + return iommu_alloc_pages(gfp, order); } =20 static int dart_init_pte(struct dart_io_pgtable *data, @@ -262,13 +257,13 @@ static int dart_map_pages(struct io_pgtable_ops *ops,= unsigned long iova, =20 /* no L2 table present */ if (!pte) { - cptep =3D __dart_alloc_pages(tblsz, gfp, cfg); + cptep =3D __dart_alloc_pages(tblsz, gfp); if (!cptep) return -ENOMEM; =20 pte =3D dart_install_table(cptep, ptep, 0, data); if (pte) - free_pages((unsigned long)cptep, get_order(tblsz)); + iommu_free_pages(cptep, get_order(tblsz)); =20 /* L2 table is present (now) */ pte =3D READ_ONCE(*ptep); @@ -419,8 +414,7 @@ apple_dart_alloc_pgtable(struct io_pgtable_cfg *cfg, vo= id *cookie) cfg->apple_dart_cfg.n_ttbrs =3D 1 << data->tbl_bits; =20 for (i =3D 0; i < cfg->apple_dart_cfg.n_ttbrs; ++i) { - data->pgd[i] =3D __dart_alloc_pages(DART_GRANULE(data), GFP_KERNEL, - cfg); + data->pgd[i] =3D __dart_alloc_pages(DART_GRANULE(data), GFP_KERNEL); if (!data->pgd[i]) goto out_free_data; cfg->apple_dart_cfg.ttbr[i] =3D virt_to_phys(data->pgd[i]); @@ -429,9 +423,10 @@ apple_dart_alloc_pgtable(struct io_pgtable_cfg *cfg, v= oid *cookie) return &data->iop; =20 out_free_data: - while (--i >=3D 0) - free_pages((unsigned long)data->pgd[i], - get_order(DART_GRANULE(data))); + while (--i >=3D 0) { + iommu_free_pages(data->pgd[i], + get_order(DART_GRANULE(data))); + } kfree(data); return NULL; } @@ -439,6 +434,7 @@ apple_dart_alloc_pgtable(struct io_pgtable_cfg *cfg, vo= id *cookie) static void apple_dart_free_pgtable(struct io_pgtable *iop) { struct dart_io_pgtable *data =3D io_pgtable_to_data(iop); + int order =3D get_order(DART_GRANULE(data)); dart_iopte *ptep, *end; int i; =20 @@ -449,15 +445,10 @@ static void apple_dart_free_pgtable(struct io_pgtable= *iop) while (ptep !=3D end) { dart_iopte pte =3D *ptep++; =20 - if (pte) { - unsigned long page =3D - (unsigned long)iopte_deref(pte, data); - - free_pages(page, get_order(DART_GRANULE(data))); - } + if (pte) + iommu_free_pages(iopte_deref(pte, data), order); } - free_pages((unsigned long)data->pgd[i], - get_order(DART_GRANULE(data))); + iommu_free_pages(data->pgd[i], order); } =20 kfree(data); --=20 2.43.0.rc2.451.g8631bc7472-goog