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688ba1dbee
Remove the dependency on PCI initialization for SWIOTLB initialization. So that PCI can be initialized at proper time. SWIOTLB is partly determined by PCI inbound/outbound map which is assigned in PCI initialization. But swiotlb_init() should be done at the stage of mem_init() which is much earlier than PCI initialization. So we reserve the memory for SWIOTLB first and free it if not necessary. All boards are converted to fit this change. Signed-off-by: Jia Hongtao <B38951@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Acked-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
32 lines
804 B
C
32 lines
804 B
C
/*
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* Copyright (C) 2009 Becky Bruce, Freescale Semiconductor
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#ifndef __ASM_SWIOTLB_H
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#define __ASM_SWIOTLB_H
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#include <linux/swiotlb.h>
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extern struct dma_map_ops swiotlb_dma_ops;
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static inline void dma_mark_clean(void *addr, size_t size) {}
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extern unsigned int ppc_swiotlb_enable;
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int __init swiotlb_setup_bus_notifier(void);
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extern void pci_dma_dev_setup_swiotlb(struct pci_dev *pdev);
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#ifdef CONFIG_SWIOTLB
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void swiotlb_detect_4g(void);
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#else
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static inline void swiotlb_detect_4g(void) {}
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#endif
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#endif /* __ASM_SWIOTLB_H */
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