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iommu/vt-d: Switch from ioremap_cache to memremap
In preparation for deprecating ioremap_cache() convert its usage in intel-iommu to memremap. This also eliminates the mishandling of the __iomem annotation in the implementation. Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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@ -34,6 +34,7 @@
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#include <linux/mempool.h>
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#include <linux/memory.h>
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#include <linux/timer.h>
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#include <linux/io.h>
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#include <linux/iova.h>
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#include <linux/iommu.h>
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#include <linux/intel-iommu.h>
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@ -2809,18 +2810,18 @@ static void intel_iommu_init_qi(struct intel_iommu *iommu)
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}
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static int copy_context_table(struct intel_iommu *iommu,
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struct root_entry __iomem *old_re,
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struct root_entry *old_re,
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struct context_entry **tbl,
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int bus, bool ext)
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{
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int tbl_idx, pos = 0, idx, devfn, ret = 0, did;
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struct context_entry __iomem *old_ce = NULL;
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struct context_entry *new_ce = NULL, ce;
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struct context_entry *old_ce = NULL;
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struct root_entry re;
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phys_addr_t old_ce_phys;
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tbl_idx = ext ? bus * 2 : bus;
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memcpy_fromio(&re, old_re, sizeof(re));
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memcpy(&re, old_re, sizeof(re));
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for (devfn = 0; devfn < 256; devfn++) {
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/* First calculate the correct index */
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@ -2855,7 +2856,8 @@ static int copy_context_table(struct intel_iommu *iommu,
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}
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ret = -ENOMEM;
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old_ce = ioremap_cache(old_ce_phys, PAGE_SIZE);
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old_ce = memremap(old_ce_phys, PAGE_SIZE,
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MEMREMAP_WB);
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if (!old_ce)
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goto out;
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@ -2867,7 +2869,7 @@ static int copy_context_table(struct intel_iommu *iommu,
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}
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/* Now copy the context entry */
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memcpy_fromio(&ce, old_ce + idx, sizeof(ce));
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memcpy(&ce, old_ce + idx, sizeof(ce));
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if (!__context_present(&ce))
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continue;
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@ -2903,7 +2905,7 @@ static int copy_context_table(struct intel_iommu *iommu,
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__iommu_flush_cache(iommu, new_ce, VTD_PAGE_SIZE);
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out_unmap:
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iounmap(old_ce);
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memunmap(old_ce);
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out:
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return ret;
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@ -2911,8 +2913,8 @@ out:
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static int copy_translation_tables(struct intel_iommu *iommu)
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{
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struct root_entry __iomem *old_rt;
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struct context_entry **ctxt_tbls;
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struct root_entry *old_rt;
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phys_addr_t old_rt_phys;
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int ctxt_table_entries;
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unsigned long flags;
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@ -2937,7 +2939,7 @@ static int copy_translation_tables(struct intel_iommu *iommu)
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if (!old_rt_phys)
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return -EINVAL;
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old_rt = ioremap_cache(old_rt_phys, PAGE_SIZE);
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old_rt = memremap(old_rt_phys, PAGE_SIZE, MEMREMAP_WB);
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if (!old_rt)
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return -ENOMEM;
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@ -2986,7 +2988,7 @@ static int copy_translation_tables(struct intel_iommu *iommu)
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ret = 0;
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out_unmap:
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iounmap(old_rt);
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memunmap(old_rt);
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return ret;
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}
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@ -384,7 +384,7 @@ static int set_msi_sid(struct irte *irte, struct pci_dev *dev)
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static int iommu_load_old_irte(struct intel_iommu *iommu)
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{
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struct irte __iomem *old_ir_table;
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struct irte *old_ir_table;
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phys_addr_t irt_phys;
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unsigned int i;
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size_t size;
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@ -408,12 +408,12 @@ static int iommu_load_old_irte(struct intel_iommu *iommu)
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size = INTR_REMAP_TABLE_ENTRIES*sizeof(struct irte);
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/* Map the old IR table */
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old_ir_table = ioremap_cache(irt_phys, size);
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old_ir_table = memremap(irt_phys, size, MEMREMAP_WB);
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if (!old_ir_table)
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return -ENOMEM;
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/* Copy data over */
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memcpy_fromio(iommu->ir_table->base, old_ir_table, size);
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memcpy(iommu->ir_table->base, old_ir_table, size);
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__iommu_flush_cache(iommu, iommu->ir_table->base, size);
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@ -426,7 +426,7 @@ static int iommu_load_old_irte(struct intel_iommu *iommu)
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bitmap_set(iommu->ir_table->bitmap, i, 1);
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}
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iounmap(old_ir_table);
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memunmap(old_ir_table);
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return 0;
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}
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