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[35.194.87.55]) by smtp.gmail.com with ESMTPSA id t5-20020a0cf985000000b0067f696f412esm4894539qvn.112.2023.12.26.12.02.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Dec 2023 12:02:09 -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, rientjes@google.com Subject: [PATCH v3 02/10] iommu/amd: use page allocation function provided by iommu-pages.h Date: Tue, 26 Dec 2023 20:01:57 +0000 Message-ID: <20231226200205.562565-3-pasha.tatashin@soleen.com> X-Mailer: git-send-email 2.43.0.472.g3155946c3a-goog In-Reply-To: <20231226200205.562565-1-pasha.tatashin@soleen.com> References: <20231226200205.562565-1-pasha.tatashin@soleen.com> Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Convert iommu/amd/* files to use the new page allocation functions provided in iommu-pages.h. Signed-off-by: Pasha Tatashin Acked-by: David Rientjes --- drivers/iommu/amd/amd_iommu.h | 8 --- drivers/iommu/amd/init.c | 91 ++++++++++++++----------------- drivers/iommu/amd/io_pgtable.c | 13 +++-- drivers/iommu/amd/io_pgtable_v2.c | 20 +++---- drivers/iommu/amd/iommu.c | 13 +++-- 5 files changed, 64 insertions(+), 81 deletions(-) diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h index 86be1edd50ee..bf697d566e0b 100644 --- a/drivers/iommu/amd/amd_iommu.h +++ b/drivers/iommu/amd/amd_iommu.h @@ -136,14 +136,6 @@ static inline int get_pci_sbdf_id(struct pci_dev *pdev) return PCI_SEG_DEVID_TO_SBDF(seg, devid); } -static inline void *alloc_pgtable_page(int nid, gfp_t gfp) -{ - struct page *page; - - page = alloc_pages_node(nid, gfp | __GFP_ZERO, 0); - return page ? page_address(page) : NULL; -} - bool translation_pre_enabled(struct amd_iommu *iommu); bool amd_iommu_is_attach_deferred(struct device *dev); int __init add_special_device(u8 type, u8 id, u32 *devid, bool cmd_line); diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c index 64bcf3df37ee..5b8a80fc7e50 100644 --- a/drivers/iommu/amd/init.c +++ b/drivers/iommu/amd/init.c @@ -35,6 +35,7 @@ #include "amd_iommu.h" #include "../irq_remapping.h" +#include "../iommu-pages.h" /* * definitions for the ACPI scanning code @@ -648,8 +649,8 @@ static int __init find_last_devid_acpi(struct acpi_table_header *table, u16 pci_ /* Allocate per PCI segment device table */ static inline int __init alloc_dev_table(struct amd_iommu_pci_seg *pci_seg) { - pci_seg->dev_table = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO | GFP_DMA32, - get_order(pci_seg->dev_table_size)); + pci_seg->dev_table = iommu_alloc_pages(GFP_KERNEL | GFP_DMA32, + get_order(pci_seg->dev_table_size)); if (!pci_seg->dev_table) return -ENOMEM; @@ -658,17 +659,16 @@ static inline int __init alloc_dev_table(struct amd_iommu_pci_seg *pci_seg) static inline void free_dev_table(struct amd_iommu_pci_seg *pci_seg) { - free_pages((unsigned long)pci_seg->dev_table, - get_order(pci_seg->dev_table_size)); + iommu_free_pages(pci_seg->dev_table, + get_order(pci_seg->dev_table_size)); pci_seg->dev_table = NULL; } /* Allocate per PCI segment IOMMU rlookup table. */ static inline int __init alloc_rlookup_table(struct amd_iommu_pci_seg *pci_seg) { - pci_seg->rlookup_table = (void *)__get_free_pages( - GFP_KERNEL | __GFP_ZERO, - get_order(pci_seg->rlookup_table_size)); + pci_seg->rlookup_table = iommu_alloc_pages(GFP_KERNEL, + get_order(pci_seg->rlookup_table_size)); if (pci_seg->rlookup_table == NULL) return -ENOMEM; @@ -677,16 +677,15 @@ static inline int __init alloc_rlookup_table(struct amd_iommu_pci_seg *pci_seg) static inline void free_rlookup_table(struct amd_iommu_pci_seg *pci_seg) { - free_pages((unsigned long)pci_seg->rlookup_table, - get_order(pci_seg->rlookup_table_size)); + iommu_free_pages(pci_seg->rlookup_table, + get_order(pci_seg->rlookup_table_size)); pci_seg->rlookup_table = NULL; } static inline int __init alloc_irq_lookup_table(struct amd_iommu_pci_seg *pci_seg) { - pci_seg->irq_lookup_table = (void *)__get_free_pages( - GFP_KERNEL | __GFP_ZERO, - get_order(pci_seg->rlookup_table_size)); + pci_seg->irq_lookup_table = iommu_alloc_pages(GFP_KERNEL, + get_order(pci_seg->rlookup_table_size)); kmemleak_alloc(pci_seg->irq_lookup_table, pci_seg->rlookup_table_size, 1, GFP_KERNEL); if (pci_seg->irq_lookup_table == NULL) @@ -698,8 +697,8 @@ static inline int __init alloc_irq_lookup_table(struct amd_iommu_pci_seg *pci_se static inline void free_irq_lookup_table(struct amd_iommu_pci_seg *pci_seg) { kmemleak_free(pci_seg->irq_lookup_table); - free_pages((unsigned long)pci_seg->irq_lookup_table, - get_order(pci_seg->rlookup_table_size)); + iommu_free_pages(pci_seg->irq_lookup_table, + get_order(pci_seg->rlookup_table_size)); pci_seg->irq_lookup_table = NULL; } @@ -707,8 +706,8 @@ static int __init alloc_alias_table(struct amd_iommu_pci_seg *pci_seg) { int i; - pci_seg->alias_table = (void *)__get_free_pages(GFP_KERNEL, - get_order(pci_seg->alias_table_size)); + pci_seg->alias_table = iommu_alloc_pages(GFP_KERNEL, + get_order(pci_seg->alias_table_size)); if (!pci_seg->alias_table) return -ENOMEM; @@ -723,8 +722,8 @@ static int __init alloc_alias_table(struct amd_iommu_pci_seg *pci_seg) static void __init free_alias_table(struct amd_iommu_pci_seg *pci_seg) { - free_pages((unsigned long)pci_seg->alias_table, - get_order(pci_seg->alias_table_size)); + iommu_free_pages(pci_seg->alias_table, + get_order(pci_seg->alias_table_size)); pci_seg->alias_table = NULL; } @@ -735,8 +734,8 @@ static void __init free_alias_table(struct amd_iommu_pci_seg *pci_seg) */ static int __init alloc_command_buffer(struct amd_iommu *iommu) { - iommu->cmd_buf = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, - get_order(CMD_BUFFER_SIZE)); + iommu->cmd_buf = iommu_alloc_pages(GFP_KERNEL, + get_order(CMD_BUFFER_SIZE)); return iommu->cmd_buf ? 0 : -ENOMEM; } @@ -844,19 +843,19 @@ static void iommu_disable_command_buffer(struct amd_iommu *iommu) static void __init free_command_buffer(struct amd_iommu *iommu) { - free_pages((unsigned long)iommu->cmd_buf, get_order(CMD_BUFFER_SIZE)); + iommu_free_pages(iommu->cmd_buf, get_order(CMD_BUFFER_SIZE)); } static void *__init iommu_alloc_4k_pages(struct amd_iommu *iommu, gfp_t gfp, size_t size) { int order = get_order(size); - void *buf = (void *)__get_free_pages(gfp, order); + void *buf = iommu_alloc_pages(gfp, order); if (buf && check_feature(FEATURE_SNP) && set_memory_4k((unsigned long)buf, (1 << order))) { - free_pages((unsigned long)buf, order); + iommu_free_pages(buf, order); buf = NULL; } @@ -866,7 +865,7 @@ static void *__init iommu_alloc_4k_pages(struct amd_iommu *iommu, /* allocates the memory where the IOMMU will log its events to */ static int __init alloc_event_buffer(struct amd_iommu *iommu) { - iommu->evt_buf = iommu_alloc_4k_pages(iommu, GFP_KERNEL | __GFP_ZERO, + iommu->evt_buf = iommu_alloc_4k_pages(iommu, GFP_KERNEL, EVT_BUFFER_SIZE); return iommu->evt_buf ? 0 : -ENOMEM; @@ -900,14 +899,13 @@ static void iommu_disable_event_buffer(struct amd_iommu *iommu) static void __init free_event_buffer(struct amd_iommu *iommu) { - free_pages((unsigned long)iommu->evt_buf, get_order(EVT_BUFFER_SIZE)); + iommu_free_pages(iommu->evt_buf, get_order(EVT_BUFFER_SIZE)); } /* allocates the memory where the IOMMU will log its events to */ static int __init alloc_ppr_log(struct amd_iommu *iommu) { - iommu->ppr_log = iommu_alloc_4k_pages(iommu, GFP_KERNEL | __GFP_ZERO, - PPR_LOG_SIZE); + iommu->ppr_log = iommu_alloc_4k_pages(iommu, GFP_KERNEL, PPR_LOG_SIZE); return iommu->ppr_log ? 0 : -ENOMEM; } @@ -936,14 +934,14 @@ static void iommu_enable_ppr_log(struct amd_iommu *iommu) static void __init free_ppr_log(struct amd_iommu *iommu) { - free_pages((unsigned long)iommu->ppr_log, get_order(PPR_LOG_SIZE)); + iommu_free_pages(iommu->ppr_log, get_order(PPR_LOG_SIZE)); } static void free_ga_log(struct amd_iommu *iommu) { #ifdef CONFIG_IRQ_REMAP - free_pages((unsigned long)iommu->ga_log, get_order(GA_LOG_SIZE)); - free_pages((unsigned long)iommu->ga_log_tail, get_order(8)); + iommu_free_pages(iommu->ga_log, get_order(GA_LOG_SIZE)); + iommu_free_pages(iommu->ga_log_tail, get_order(8)); #endif } @@ -988,13 +986,11 @@ static int iommu_init_ga_log(struct amd_iommu *iommu) if (!AMD_IOMMU_GUEST_IR_VAPIC(amd_iommu_guest_ir)) return 0; - iommu->ga_log = (u8 *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, - get_order(GA_LOG_SIZE)); + iommu->ga_log = iommu_alloc_pages(GFP_KERNEL, get_order(GA_LOG_SIZE)); if (!iommu->ga_log) goto err_out; - iommu->ga_log_tail = (u8 *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, - get_order(8)); + iommu->ga_log_tail = iommu_alloc_pages(GFP_KERNEL, get_order(8)); if (!iommu->ga_log_tail) goto err_out; @@ -1007,7 +1003,7 @@ static int iommu_init_ga_log(struct amd_iommu *iommu) static int __init alloc_cwwb_sem(struct amd_iommu *iommu) { - iommu->cmd_sem = iommu_alloc_4k_pages(iommu, GFP_KERNEL | __GFP_ZERO, 1); + iommu->cmd_sem = iommu_alloc_4k_pages(iommu, GFP_KERNEL, 1); return iommu->cmd_sem ? 0 : -ENOMEM; } @@ -1015,7 +1011,7 @@ static int __init alloc_cwwb_sem(struct amd_iommu *iommu) static void __init free_cwwb_sem(struct amd_iommu *iommu) { if (iommu->cmd_sem) - free_page((unsigned long)iommu->cmd_sem); + iommu_free_page((void *)iommu->cmd_sem); } static void iommu_enable_xt(struct amd_iommu *iommu) @@ -1080,7 +1076,6 @@ static bool __copy_device_table(struct amd_iommu *iommu) u32 lo, hi, devid, old_devtb_size; phys_addr_t old_devtb_phys; u16 dom_id, dte_v, irq_v; - gfp_t gfp_flag; u64 tmp; /* Each IOMMU use separate device table with the same size */ @@ -1114,9 +1109,8 @@ static bool __copy_device_table(struct amd_iommu *iommu) if (!old_devtb) return false; - gfp_flag = GFP_KERNEL | __GFP_ZERO | GFP_DMA32; - pci_seg->old_dev_tbl_cpy = (void *)__get_free_pages(gfp_flag, - get_order(pci_seg->dev_table_size)); + pci_seg->old_dev_tbl_cpy = iommu_alloc_pages(GFP_KERNEL | GFP_DMA32, + get_order(pci_seg->dev_table_size)); if (pci_seg->old_dev_tbl_cpy == NULL) { pr_err("Failed to allocate memory for copying old device table!\n"); memunmap(old_devtb); @@ -2800,8 +2794,8 @@ static void early_enable_iommus(void) for_each_pci_segment(pci_seg) { if (pci_seg->old_dev_tbl_cpy != NULL) { - free_pages((unsigned long)pci_seg->old_dev_tbl_cpy, - get_order(pci_seg->dev_table_size)); + iommu_free_pages(pci_seg->old_dev_tbl_cpy, + get_order(pci_seg->dev_table_size)); pci_seg->old_dev_tbl_cpy = NULL; } } @@ -2814,8 +2808,8 @@ static void early_enable_iommus(void) pr_info("Copied DEV table from previous kernel.\n"); for_each_pci_segment(pci_seg) { - free_pages((unsigned long)pci_seg->dev_table, - get_order(pci_seg->dev_table_size)); + iommu_free_pages(pci_seg->dev_table, + get_order(pci_seg->dev_table_size)); pci_seg->dev_table = pci_seg->old_dev_tbl_cpy; } @@ -3018,8 +3012,8 @@ static bool __init check_ioapic_information(void) static void __init free_dma_resources(void) { - free_pages((unsigned long)amd_iommu_pd_alloc_bitmap, - get_order(MAX_DOMAIN_ID/8)); + iommu_free_pages(amd_iommu_pd_alloc_bitmap, + get_order(MAX_DOMAIN_ID / 8)); amd_iommu_pd_alloc_bitmap = NULL; free_unity_maps(); @@ -3091,9 +3085,8 @@ static int __init early_amd_iommu_init(void) /* Device table - directly used by all IOMMUs */ ret = -ENOMEM; - amd_iommu_pd_alloc_bitmap = (void *)__get_free_pages( - GFP_KERNEL | __GFP_ZERO, - get_order(MAX_DOMAIN_ID/8)); + amd_iommu_pd_alloc_bitmap = iommu_alloc_pages(GFP_KERNEL, + get_order(MAX_DOMAIN_ID / 8)); if (amd_iommu_pd_alloc_bitmap == NULL) goto out; diff --git a/drivers/iommu/amd/io_pgtable.c b/drivers/iommu/amd/io_pgtable.c index 6c0621f6f572..f8b7d4c39a9f 100644 --- a/drivers/iommu/amd/io_pgtable.c +++ b/drivers/iommu/amd/io_pgtable.c @@ -22,6 +22,7 @@ #include "amd_iommu_types.h" #include "amd_iommu.h" +#include "../iommu-pages.h" static void v1_tlb_flush_all(void *cookie) { @@ -156,7 +157,7 @@ static bool increase_address_space(struct protection_domain *domain, bool ret = true; u64 *pte; - pte = alloc_pgtable_page(domain->nid, gfp); + pte = iommu_alloc_page_node(domain->nid, gfp); if (!pte) return false; @@ -187,7 +188,7 @@ static bool increase_address_space(struct protection_domain *domain, out: spin_unlock_irqrestore(&domain->lock, flags); - free_page((unsigned long)pte); + iommu_free_page(pte); return ret; } @@ -250,7 +251,7 @@ static u64 *alloc_pte(struct protection_domain *domain, if (!IOMMU_PTE_PRESENT(__pte) || pte_level == PAGE_MODE_NONE) { - page = alloc_pgtable_page(domain->nid, gfp); + page = iommu_alloc_page_node(domain->nid, gfp); if (!page) return NULL; @@ -259,7 +260,7 @@ static u64 *alloc_pte(struct protection_domain *domain, /* pte could have been changed somewhere. */ if (!try_cmpxchg64(pte, &__pte, __npte)) - free_page((unsigned long)page); + iommu_free_page(page); else if (IOMMU_PTE_PRESENT(__pte)) *updated = true; @@ -430,7 +431,7 @@ static int iommu_v1_map_pages(struct io_pgtable_ops *ops, unsigned long iova, } /* Everything flushed out, free pages now */ - put_pages_list(&freelist); + iommu_free_pages_list(&freelist); return ret; } @@ -579,7 +580,7 @@ static void v1_free_pgtable(struct io_pgtable *iop) /* Make changes visible to IOMMUs */ amd_iommu_domain_update(dom); - put_pages_list(&freelist); + iommu_free_pages_list(&freelist); } static struct io_pgtable *v1_alloc_pgtable(struct io_pgtable_cfg *cfg, void *cookie) diff --git a/drivers/iommu/amd/io_pgtable_v2.c b/drivers/iommu/amd/io_pgtable_v2.c index f818a7e254d4..1e08dab93686 100644 --- a/drivers/iommu/amd/io_pgtable_v2.c +++ b/drivers/iommu/amd/io_pgtable_v2.c @@ -18,6 +18,7 @@ #include "amd_iommu_types.h" #include "amd_iommu.h" +#include "../iommu-pages.h" #define IOMMU_PAGE_PRESENT BIT_ULL(0) /* Is present */ #define IOMMU_PAGE_RW BIT_ULL(1) /* Writeable */ @@ -99,11 +100,6 @@ static inline int page_size_to_level(u64 pg_size) return PAGE_MODE_1_LEVEL; } -static inline void free_pgtable_page(u64 *pt) -{ - free_page((unsigned long)pt); -} - static void free_pgtable(u64 *pt, int level) { u64 *p; @@ -125,10 +121,10 @@ static void free_pgtable(u64 *pt, int level) if (level > 2) free_pgtable(p, level - 1); else - free_pgtable_page(p); + iommu_free_page(p); } - free_pgtable_page(pt); + iommu_free_page(pt); } /* Allocate page table */ @@ -156,14 +152,14 @@ static u64 *v2_alloc_pte(int nid, u64 *pgd, unsigned long iova, } if (!IOMMU_PTE_PRESENT(__pte)) { - page = alloc_pgtable_page(nid, gfp); + page = iommu_alloc_page_node(nid, gfp); if (!page) return NULL; __npte = set_pgtable_attr(page); /* pte could have been changed somewhere. */ if (cmpxchg64(pte, __pte, __npte) != __pte) - free_pgtable_page(page); + iommu_free_page(page); else if (IOMMU_PTE_PRESENT(__pte)) *updated = true; @@ -185,7 +181,7 @@ static u64 *v2_alloc_pte(int nid, u64 *pgd, unsigned long iova, if (pg_size == IOMMU_PAGE_SIZE_1G) free_pgtable(__pte, end_level - 1); else if (pg_size == IOMMU_PAGE_SIZE_2M) - free_pgtable_page(__pte); + iommu_free_page(__pte); } return pte; @@ -380,7 +376,7 @@ static struct io_pgtable *v2_alloc_pgtable(struct io_pgtable_cfg *cfg, void *coo int ret; int ias = IOMMU_IN_ADDR_BIT_SIZE; - pgtable->pgd = alloc_pgtable_page(pdom->nid, GFP_ATOMIC); + pgtable->pgd = iommu_alloc_page_node(pdom->nid, GFP_ATOMIC); if (!pgtable->pgd) return NULL; @@ -403,7 +399,7 @@ static struct io_pgtable *v2_alloc_pgtable(struct io_pgtable_cfg *cfg, void *coo return &pgtable->iop; err_free_pgd: - free_pgtable_page(pgtable->pgd); + iommu_free_page(pgtable->pgd); return NULL; } diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index fcc987f5d4ed..9a228a95da0e 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -42,6 +42,7 @@ #include "amd_iommu.h" #include "../dma-iommu.h" #include "../irq_remapping.h" +#include "../iommu-pages.h" #define CMD_SET_TYPE(cmd, t) ((cmd)->data[1] |= ((t) << 28)) @@ -1642,7 +1643,7 @@ static void free_gcr3_tbl_level1(u64 *tbl) ptr = iommu_phys_to_virt(tbl[i] & PAGE_MASK); - free_page((unsigned long)ptr); + iommu_free_page(ptr); } } @@ -1670,7 +1671,7 @@ static void free_gcr3_table(struct protection_domain *domain) else BUG_ON(domain->glx != 0); - free_page((unsigned long)domain->gcr3_tbl); + iommu_free_page(domain->gcr3_tbl); } /* @@ -1697,7 +1698,7 @@ static int setup_gcr3_table(struct protection_domain *domain, int pasids) if (levels > amd_iommu_max_glx_val) return -EINVAL; - domain->gcr3_tbl = alloc_pgtable_page(domain->nid, GFP_ATOMIC); + domain->gcr3_tbl = iommu_alloc_page_node(domain->nid, GFP_ATOMIC); if (domain->gcr3_tbl == NULL) return -ENOMEM; @@ -2092,7 +2093,7 @@ static void protection_domain_free(struct protection_domain *domain) free_gcr3_table(domain); if (domain->iop.root) - free_page((unsigned long)domain->iop.root); + iommu_free_page(domain->iop.root); if (domain->id) domain_id_free(domain->id); @@ -2107,7 +2108,7 @@ static int protection_domain_init_v1(struct protection_domain *domain, int mode) BUG_ON(mode < PAGE_MODE_NONE || mode > PAGE_MODE_6_LEVEL); if (mode != PAGE_MODE_NONE) { - pt_root = (void *)get_zeroed_page(GFP_KERNEL); + pt_root = iommu_alloc_page(GFP_KERNEL); if (!pt_root) return -ENOMEM; } @@ -2783,7 +2784,7 @@ static u64 *__get_gcr3_pte(u64 *root, int level, u32 pasid, bool alloc) if (!alloc) return NULL; - root = (void *)get_zeroed_page(GFP_ATOMIC); + root = iommu_alloc_page(GFP_ATOMIC); if (root == NULL) return NULL;