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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/arch/sh/drivers/pci/pcie-sh7786.c
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@@ -1,11 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0
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 /*
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  * Low-Level PCI Express Support for the SH7786
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  *
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  *  Copyright (C) 2009 - 2011  Paul Mundt
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- *
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- * This file is subject to the terms and conditions of the GNU General Public
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- * License.  See the file "COPYING" in the main directory of this archive
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- * for more details.
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  */
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 #define pr_fmt(fmt) "PCI: " fmt
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@@ -15,13 +12,14 @@
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 #include <linux/io.h>
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 #include <linux/async.h>
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 #include <linux/delay.h>
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+#include <linux/dma-mapping.h>
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 #include <linux/slab.h>
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 #include <linux/clk.h>
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 #include <linux/sh_clk.h>
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 #include <linux/sh_intc.h>
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 #include <cpu/sh7786.h>
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 #include "pcie-sh7786.h"
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-#include <asm/sizes.h>
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+#include <linux/sizes.h>
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 struct sh7786_pcie_port {
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 	struct pci_channel	*hose;
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@@ -34,6 +32,8 @@
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 static struct sh7786_pcie_port *sh7786_pcie_ports;
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 static unsigned int nr_ports;
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 static unsigned long dma_pfn_offset;
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+size_t memsize;
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+u64 memstart;
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 static struct sh7786_pcie_hwops {
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 	int (*core_init)(void);
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@@ -304,7 +304,6 @@
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 	struct pci_channel *chan = port->hose;
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 	unsigned int data;
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 	phys_addr_t memstart, memend;
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-	size_t memsize;
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 	int ret, i, win;
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 	/* Begin initialization */
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@@ -370,8 +369,6 @@
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 	 */
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 	memstart = ALIGN_DOWN(memstart, memsize);
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 	memsize = roundup_pow_of_two(memend - memstart);
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-
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-	dma_pfn_offset = memstart >> PAGE_SHIFT;
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 	/*
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 	 * If there's more than 512MB of memory, we need to roll over to
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@@ -490,7 +487,8 @@
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 void pcibios_bus_add_device(struct pci_dev *pdev)
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 {
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-	pdev->dev.dma_pfn_offset = dma_pfn_offset;
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+	dma_direct_set_offset(&pdev->dev, __pa(memory_start),
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+			      __pa(memory_start) - memstart, memsize);
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 }
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 static int __init sh7786_pcie_core_init(void)