1 files changed, 0 insertions, 177 deletions
diff --git a/arch/x86/kernel/tce_64.c b/arch/x86/kernel/tce_64.c
deleted file mode 100644
index 6384be751eff..000000000000
--- a/arch/x86/kernel/tce_64.c
+++ /dev/null
@@ -1,177 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * This file manages the translation entries for the IBM Calgary IOMMU.
- *
- * Derived from arch/powerpc/platforms/pseries/iommu.c
- *
- * Copyright (C) IBM Corporation, 2006
- *
- * Author: Jon Mason <jdmason@us.ibm.com>
- * Author: Muli Ben-Yehuda <muli@il.ibm.com>
- */
-
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/spinlock.h>
-#include <linux/string.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/memblock.h>
-#include <asm/tce.h>
-#include <asm/calgary.h>
-#include <asm/proto.h>
-#include <asm/cacheflush.h>
-
-/* flush a tce at 'tceaddr' to main memory */
-static inline void flush_tce(void* tceaddr)
-{
-	/* a single tce can't cross a cache line */
-	if (boot_cpu_has(X86_FEATURE_CLFLUSH))
-		clflush(tceaddr);
-	else
-		wbinvd();
-}
-
-void tce_build(struct iommu_table *tbl, unsigned long index,
-	unsigned int npages, unsigned long uaddr, int direction)
-{
-	u64* tp;
-	u64 t;
-	u64 rpn;
-
-	t = (1 << TCE_READ_SHIFT);
-	if (direction != DMA_TO_DEVICE)
-		t |= (1 << TCE_WRITE_SHIFT);
-
-	tp = ((u64*)tbl->it_base) + index;
-
-	while (npages--) {
-		rpn = (virt_to_bus((void*)uaddr)) >> PAGE_SHIFT;
-		t &= ~TCE_RPN_MASK;
-		t |= (rpn << TCE_RPN_SHIFT);
-
-		*tp = cpu_to_be64(t);
-		flush_tce(tp);
-
-		uaddr += PAGE_SIZE;
-		tp++;
-	}
-}
-
-void tce_free(struct iommu_table *tbl, long index, unsigned int npages)
-{
-	u64* tp;
-
-	tp  = ((u64*)tbl->it_base) + index;
-
-	while (npages--) {
-		*tp = cpu_to_be64(0);
-		flush_tce(tp);
-		tp++;
-	}
-}
-
-static inline unsigned int table_size_to_number_of_entries(unsigned char size)
-{
-	/*
-	 * size is the order of the table, 0-7
-	 * smallest table is 8K entries, so shift result by 13 to
-	 * multiply by 8K
-	 */
-	return (1 << size) << 13;
-}
-
-static int tce_table_setparms(struct pci_dev *dev, struct iommu_table *tbl)
-{
-	unsigned int bitmapsz;
-	unsigned long bmppages;
-	int ret;
-
-	tbl->it_busno = dev->bus->number;
-
-	/* set the tce table size - measured in entries */
-	tbl->it_size = table_size_to_number_of_entries(specified_table_size);
-
-	/*
-	 * number of bytes needed for the bitmap size in number of
-	 * entries; we need one bit per entry
-	 */
-	bitmapsz = tbl->it_size / BITS_PER_BYTE;
-	bmppages = __get_free_pages(GFP_KERNEL, get_order(bitmapsz));
-	if (!bmppages) {
-		printk(KERN_ERR "Calgary: cannot allocate bitmap\n");
-		ret = -ENOMEM;
-		goto done;
-	}
-
-	tbl->it_map = (unsigned long*)bmppages;
-
-	memset(tbl->it_map, 0, bitmapsz);
-
-	tbl->it_hint = 0;
-
-	spin_lock_init(&tbl->it_lock);
-
-	return 0;
-
-done:
-	return ret;
-}
-
-int __init build_tce_table(struct pci_dev *dev, void __iomem *bbar)
-{
-	struct iommu_table *tbl;
-	int ret;
-
-	if (pci_iommu(dev->bus)) {
-		printk(KERN_ERR "Calgary: dev %p has sysdata->iommu %p\n",
-		       dev, pci_iommu(dev->bus));
-		BUG();
-	}
-
-	tbl = kzalloc(sizeof(struct iommu_table), GFP_KERNEL);
-	if (!tbl) {
-		printk(KERN_ERR "Calgary: error allocating iommu_table\n");
-		ret = -ENOMEM;
-		goto done;
-	}
-
-	ret = tce_table_setparms(dev, tbl);
-	if (ret)
-		goto free_tbl;
-
-	tbl->bbar = bbar;
-
-	set_pci_iommu(dev->bus, tbl);
-
-	return 0;
-
-free_tbl:
-	kfree(tbl);
-done:
-	return ret;
-}
-
-void * __init alloc_tce_table(void)
-{
-	unsigned int size;
-
-	size = table_size_to_number_of_entries(specified_table_size);
-	size *= TCE_ENTRY_SIZE;
-
-	return memblock_alloc_low(size, size);
-}
-
-void __init free_tce_table(void *tbl)
-{
-	unsigned int size;
-
-	if (!tbl)
-		return;
-
-	size = table_size_to_number_of_entries(specified_table_size);
-	size *= TCE_ENTRY_SIZE;
-
-	memblock_free(__pa(tbl), size);
-}