rtl8211F_led_control

hc

2024-05-11 297b60346df8beafee954a0fd7c2d64f33f3b9bc

 kernel/arch/ia64/kernel/pci-dma.c
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@@ -10,15 +10,9 @@
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 #include <linux/module.h>
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 #include <linux/dmar.h>
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 #include <asm/iommu.h>
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-#include <asm/machvec.h>
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 #include <linux/dma-mapping.h>
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 #include <linux/kernel.h>
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 #include <asm/page.h>
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-
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-dma_addr_t bad_dma_address __read_mostly;
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-EXPORT_SYMBOL(bad_dma_address);
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-
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-static int iommu_sac_force __read_mostly;
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 int no_iommu __read_mostly;
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 #ifdef CONFIG_IOMMU_DEBUG
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@@ -26,10 +20,6 @@
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 #else
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 int force_iommu __read_mostly;
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 #endif
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-
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-int iommu_pass_through;
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-
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-extern struct dma_map_ops intel_dma_ops;
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 static int __init pci_iommu_init(void)
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 {
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@@ -41,72 +31,3 @@
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 /* Must execute after PCI subsystem */
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 fs_initcall(pci_iommu_init);
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-
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-void pci_iommu_shutdown(void)
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-{
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-	return;
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-}
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-
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-void __init
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-iommu_dma_init(void)
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-{
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-	return;
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-}
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-
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-int iommu_dma_supported(struct device *dev, u64 mask)
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-{
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-	/* Copied from i386. Doesn't make much sense, because it will
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-	   only work for pci_alloc_coherent.
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-	   The caller just has to use GFP_DMA in this case. */
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-	if (mask < DMA_BIT_MASK(24))
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-		return 0;
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-
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-	/* Tell the device to use SAC when IOMMU force is on.  This
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-	   allows the driver to use cheaper accesses in some cases.
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-
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-	   Problem with this is that if we overflow the IOMMU area and
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-	   return DAC as fallback address the device may not handle it
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-	   correctly.
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-
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-	   As a special case some controllers have a 39bit address
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-	   mode that is as efficient as 32bit (aic79xx). Don't force
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-	   SAC for these.  Assume all masks <= 40 bits are of this
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-	   type. Normally this doesn't make any difference, but gives
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-	   more gentle handling of IOMMU overflow. */
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-	if (iommu_sac_force && (mask >= DMA_BIT_MASK(40))) {
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-		dev_info(dev, "Force SAC with mask %llx\n", mask);
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-		return 0;
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-	}
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-
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-	return 1;
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-}
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-EXPORT_SYMBOL(iommu_dma_supported);
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-
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-void __init pci_iommu_alloc(void)
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-{
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-	dma_ops = &intel_dma_ops;
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-
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-	intel_dma_ops.sync_single_for_cpu = machvec_dma_sync_single;
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-	intel_dma_ops.sync_sg_for_cpu = machvec_dma_sync_sg;
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-	intel_dma_ops.sync_single_for_device = machvec_dma_sync_single;
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-	intel_dma_ops.sync_sg_for_device = machvec_dma_sync_sg;
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-	intel_dma_ops.dma_supported = iommu_dma_supported;
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-
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-	/*
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-	 * The order of these functions is important for
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-	 * fall-back/fail-over reasons
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-	 */
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-	detect_intel_iommu();
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-
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-#ifdef CONFIG_SWIOTLB
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-	if (!iommu_detected) {
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-#ifdef CONFIG_IA64_GENERIC
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-		printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n");
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-		machvec_init("dig");
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-		swiotlb_dma_init();
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-#else
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-		panic("Unable to find Intel IOMMU");
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-#endif /* CONFIG_IA64_GENERIC */
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-	}
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-#endif /* CONFIG_SWIOTLB */
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-}