Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 264 deletions

diff --git a/ANDROID_3.4.5/arch/powerpc/platforms/pasemi/iommu.c b/ANDROID_3.4.5/arch/powerpc/platforms/pasemi/iommu.c
deleted file mode 100644
index 14943ef0..00000000
--- a/ANDROID_3.4.5/arch/powerpc/platforms/pasemi/iommu.c
+++ /dev/null
@@ -1,264 +0,0 @@
-/*
- * Copyright (C) 2005-2008, PA Semi, Inc
- *
- * Maintained by: Olof Johansson <olof@lixom.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- */
-
-#undef DEBUG
-
-#include <linux/types.h>
-#include <linux/spinlock.h>
-#include <linux/pci.h>
-#include <asm/iommu.h>
-#include <asm/machdep.h>
-#include <asm/abs_addr.h>
-#include <asm/firmware.h>
-
-#define IOBMAP_PAGE_SHIFT	12
-#define IOBMAP_PAGE_SIZE	(1 << IOBMAP_PAGE_SHIFT)
-#define IOBMAP_PAGE_MASK	(IOBMAP_PAGE_SIZE - 1)
-
-#define IOB_BASE		0xe0000000
-#define IOB_SIZE		0x3000
-/* Configuration registers */
-#define IOBCAP_REG		0x40
-#define IOBCOM_REG		0x100
-/* Enable IOB address translation */
-#define IOBCOM_ATEN		0x00000100
-
-/* Address decode configuration register */
-#define IOB_AD_REG		0x14c
-/* IOBCOM_AD_REG fields */
-#define IOB_AD_VGPRT		0x00000e00
-#define IOB_AD_VGAEN		0x00000100
-/* Direct mapping settings */
-#define IOB_AD_MPSEL_MASK	0x00000030
-#define IOB_AD_MPSEL_B38	0x00000000
-#define IOB_AD_MPSEL_B40	0x00000010
-#define IOB_AD_MPSEL_B42	0x00000020
-/* Translation window size / enable */
-#define IOB_AD_TRNG_MASK	0x00000003
-#define IOB_AD_TRNG_256M	0x00000000
-#define IOB_AD_TRNG_2G		0x00000001
-#define IOB_AD_TRNG_128G	0x00000003
-
-#define IOB_TABLEBASE_REG	0x154
-
-/* Base of the 64 4-byte L1 registers */
-#define IOB_XLT_L1_REGBASE	0x2b00
-
-/* Register to invalidate TLB entries */
-#define IOB_AT_INVAL_TLB_REG	0x2d00
-
-/* The top two bits of the level 1 entry contains valid and type flags */
-#define IOBMAP_L1E_V		0x40000000
-#define IOBMAP_L1E_V_B		0x80000000
-
-/* For big page entries, the bottom two bits contains flags */
-#define IOBMAP_L1E_BIG_CACHED	0x00000002
-#define IOBMAP_L1E_BIG_PRIORITY	0x00000001
-
-/* For regular level 2 entries, top 2 bits contain valid and cache flags */
-#define IOBMAP_L2E_V		0x80000000
-#define IOBMAP_L2E_V_CACHED	0xc0000000
-
-static void __iomem *iob;
-static u32 iob_l1_emptyval;
-static u32 iob_l2_emptyval;
-static u32 *iob_l2_base;
-
-static struct iommu_table iommu_table_iobmap;
-static int iommu_table_iobmap_inited;
-
-static int iobmap_build(struct iommu_table *tbl, long index,
-			 long npages, unsigned long uaddr,
-			 enum dma_data_direction direction,
-			 struct dma_attrs *attrs)
-{
-	u32 *ip;
-	u32 rpn;
-	unsigned long bus_addr;
-
-	pr_debug("iobmap: build at: %lx, %lx, addr: %lx\n", index, npages, uaddr);
-
-	bus_addr = (tbl->it_offset + index) << IOBMAP_PAGE_SHIFT;
-
-	ip = ((u32 *)tbl->it_base) + index;
-
-	while (npages--) {
-		rpn = virt_to_abs(uaddr) >> IOBMAP_PAGE_SHIFT;
-
-		*(ip++) = IOBMAP_L2E_V | rpn;
-		/* invalidate tlb, can be optimized more */
-		out_le32(iob+IOB_AT_INVAL_TLB_REG, bus_addr >> 14);
-
-		uaddr += IOBMAP_PAGE_SIZE;
-		bus_addr += IOBMAP_PAGE_SIZE;
-	}
-	return 0;
-}
-
-
-static void iobmap_free(struct iommu_table *tbl, long index,
-			long npages)
-{
-	u32 *ip;
-	unsigned long bus_addr;
-
-	pr_debug("iobmap: free at: %lx, %lx\n", index, npages);
-
-	bus_addr = (tbl->it_offset + index) << IOBMAP_PAGE_SHIFT;
-
-	ip = ((u32 *)tbl->it_base) + index;
-
-	while (npages--) {
-		*(ip++) = iob_l2_emptyval;
-		/* invalidate tlb, can be optimized more */
-		out_le32(iob+IOB_AT_INVAL_TLB_REG, bus_addr >> 14);
-		bus_addr += IOBMAP_PAGE_SIZE;
-	}
-}
-
-
-static void iommu_table_iobmap_setup(void)
-{
-	pr_debug(" -> %s\n", __func__);
-	iommu_table_iobmap.it_busno = 0;
-	iommu_table_iobmap.it_offset = 0;
-	/* it_size is in number of entries */
-	iommu_table_iobmap.it_size = 0x80000000 >> IOBMAP_PAGE_SHIFT;
-
-	/* Initialize the common IOMMU code */
-	iommu_table_iobmap.it_base = (unsigned long)iob_l2_base;
-	iommu_table_iobmap.it_index = 0;
-	/* XXXOJN tune this to avoid IOB cache invals.
-	 * Should probably be 8 (64 bytes)
-	 */
-	iommu_table_iobmap.it_blocksize = 4;
-	iommu_init_table(&iommu_table_iobmap, 0);
-	pr_debug(" <- %s\n", __func__);
-}
-
-
-
-static void pci_dma_bus_setup_pasemi(struct pci_bus *bus)
-{
-	pr_debug("pci_dma_bus_setup, bus %p, bus->self %p\n", bus, bus->self);
-
-	if (!iommu_table_iobmap_inited) {
-		iommu_table_iobmap_inited = 1;
-		iommu_table_iobmap_setup();
-	}
-}
-
-
-static void pci_dma_dev_setup_pasemi(struct pci_dev *dev)
-{
-	pr_debug("pci_dma_dev_setup, dev %p (%s)\n", dev, pci_name(dev));
-
-#if !defined(CONFIG_PPC_PASEMI_IOMMU_DMA_FORCE)
-	/* For non-LPAR environment, don't translate anything for the DMA
-	 * engine. The exception to this is if the user has enabled
-	 * CONFIG_PPC_PASEMI_IOMMU_DMA_FORCE at build time.
-	 */
-	if (dev->vendor == 0x1959 && dev->device == 0xa007 &&
-	    !firmware_has_feature(FW_FEATURE_LPAR)) {
-		dev->dev.archdata.dma_ops = &dma_direct_ops;
-		return;
-	}
-#endif
-
-	set_iommu_table_base(&dev->dev, &iommu_table_iobmap);
-}
-
-int __init iob_init(struct device_node *dn)
-{
-	unsigned long tmp;
-	u32 regword;
-	int i;
-
-	pr_debug(" -> %s\n", __func__);
-
-	/* Allocate a spare page to map all invalid IOTLB pages. */
-	tmp = memblock_alloc(IOBMAP_PAGE_SIZE, IOBMAP_PAGE_SIZE);
-	if (!tmp)
-		panic("IOBMAP: Cannot allocate spare page!");
-	/* Empty l1 is marked invalid */
-	iob_l1_emptyval = 0;
-	/* Empty l2 is mapped to dummy page */
-	iob_l2_emptyval = IOBMAP_L2E_V | (tmp >> IOBMAP_PAGE_SHIFT);
-
-	iob = ioremap(IOB_BASE, IOB_SIZE);
-	if (!iob)
-		panic("IOBMAP: Cannot map registers!");
-
-	/* setup direct mapping of the L1 entries */
-	for (i = 0; i < 64; i++) {
-		/* Each L1 covers 32MB, i.e. 8K entries = 32K of ram */
-		regword = IOBMAP_L1E_V | (__pa(iob_l2_base + i*0x2000) >> 12);
-		out_le32(iob+IOB_XLT_L1_REGBASE+i*4, regword);
-	}
-
-	/* set 2GB translation window, based at 0 */
-	regword = in_le32(iob+IOB_AD_REG);
-	regword &= ~IOB_AD_TRNG_MASK;
-	regword |= IOB_AD_TRNG_2G;
-	out_le32(iob+IOB_AD_REG, regword);
-
-	/* Enable translation */
-	regword = in_le32(iob+IOBCOM_REG);
-	regword |= IOBCOM_ATEN;
-	out_le32(iob+IOBCOM_REG, regword);
-
-	pr_debug(" <- %s\n", __func__);
-
-	return 0;
-}
-
-
-/* These are called very early. */
-void __init iommu_init_early_pasemi(void)
-{
-	int iommu_off;
-
-#ifndef CONFIG_PPC_PASEMI_IOMMU
-	iommu_off = 1;
-#else
-	iommu_off = of_chosen &&
-			of_get_property(of_chosen, "linux,iommu-off", NULL);
-#endif
-	if (iommu_off)
-		return;
-
-	iob_init(NULL);
-
-	ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_pasemi;
-	ppc_md.pci_dma_bus_setup = pci_dma_bus_setup_pasemi;
-	ppc_md.tce_build = iobmap_build;
-	ppc_md.tce_free  = iobmap_free;
-	set_pci_dma_ops(&dma_iommu_ops);
-}
-
-void __init alloc_iobmap_l2(void)
-{
-#ifndef CONFIG_PPC_PASEMI_IOMMU
-	return;
-#endif
-	/* For 2G space, 8x64 pages (2^21 bytes) is max total l2 size */
-	iob_l2_base = (u32 *)abs_to_virt(memblock_alloc_base(1UL<<21, 1UL<<21, 0x80000000));
-
-	printk(KERN_INFO "IOBMAP L2 allocated at: %p\n", iob_l2_base);
-}