forked from Qortal/Brooklyn
2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
209 lines
5.7 KiB
C
209 lines
5.7 KiB
C
/*
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* cb710/cb710.h
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*
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* Copyright by Michał Mirosław, 2008-2009
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef LINUX_CB710_DRIVER_H
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#define LINUX_CB710_DRIVER_H
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#include <linux/io.h>
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#include <linux/interrupt.h>
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#include <linux/spinlock.h>
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#include <linux/pci.h>
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#include <linux/platform_device.h>
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#include <linux/mmc/host.h>
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struct cb710_slot;
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typedef int (*cb710_irq_handler_t)(struct cb710_slot *);
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/* per-virtual-slot structure */
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struct cb710_slot {
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struct platform_device pdev;
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void __iomem *iobase;
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cb710_irq_handler_t irq_handler;
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};
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/* per-device structure */
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struct cb710_chip {
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struct pci_dev *pdev;
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void __iomem *iobase;
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unsigned platform_id;
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#ifdef CONFIG_CB710_DEBUG_ASSUMPTIONS
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atomic_t slot_refs_count;
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#endif
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unsigned slot_mask;
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unsigned slots;
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spinlock_t irq_lock;
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struct cb710_slot slot[0];
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};
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/* NOTE: cb710_chip.slots is modified only during device init/exit and
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* they are all serialized wrt themselves */
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/* cb710_chip.slot_mask values */
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#define CB710_SLOT_MMC 1
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#define CB710_SLOT_MS 2
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#define CB710_SLOT_SM 4
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/* slot port accessors - so the logic is more clear in the code */
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#define CB710_PORT_ACCESSORS(t) \
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static inline void cb710_write_port_##t(struct cb710_slot *slot, \
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unsigned port, u##t value) \
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{ \
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iowrite##t(value, slot->iobase + port); \
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} \
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\
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static inline u##t cb710_read_port_##t(struct cb710_slot *slot, \
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unsigned port) \
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{ \
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return ioread##t(slot->iobase + port); \
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} \
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\
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static inline void cb710_modify_port_##t(struct cb710_slot *slot, \
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unsigned port, u##t set, u##t clear) \
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{ \
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iowrite##t( \
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(ioread##t(slot->iobase + port) & ~clear)|set, \
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slot->iobase + port); \
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}
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CB710_PORT_ACCESSORS(8)
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CB710_PORT_ACCESSORS(16)
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CB710_PORT_ACCESSORS(32)
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void cb710_pci_update_config_reg(struct pci_dev *pdev,
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int reg, uint32_t and, uint32_t xor);
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void cb710_set_irq_handler(struct cb710_slot *slot,
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cb710_irq_handler_t handler);
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/* some device struct walking */
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static inline struct cb710_slot *cb710_pdev_to_slot(
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struct platform_device *pdev)
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{
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return container_of(pdev, struct cb710_slot, pdev);
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}
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static inline struct cb710_chip *cb710_slot_to_chip(struct cb710_slot *slot)
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{
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return dev_get_drvdata(slot->pdev.dev.parent);
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}
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static inline struct device *cb710_slot_dev(struct cb710_slot *slot)
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{
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return &slot->pdev.dev;
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}
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static inline struct device *cb710_chip_dev(struct cb710_chip *chip)
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{
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return &chip->pdev->dev;
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}
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/* debugging aids */
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#ifdef CONFIG_CB710_DEBUG
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void cb710_dump_regs(struct cb710_chip *chip, unsigned dump);
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#else
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#define cb710_dump_regs(c, d) do {} while (0)
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#endif
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#define CB710_DUMP_REGS_MMC 0x0F
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#define CB710_DUMP_REGS_MS 0x30
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#define CB710_DUMP_REGS_SM 0xC0
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#define CB710_DUMP_REGS_ALL 0xFF
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#define CB710_DUMP_REGS_MASK 0xFF
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#define CB710_DUMP_ACCESS_8 0x100
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#define CB710_DUMP_ACCESS_16 0x200
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#define CB710_DUMP_ACCESS_32 0x400
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#define CB710_DUMP_ACCESS_ALL 0x700
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#define CB710_DUMP_ACCESS_MASK 0x700
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#endif /* LINUX_CB710_DRIVER_H */
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/*
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* cb710/sgbuf2.h
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*
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* Copyright by Michał Mirosław, 2008-2009
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef LINUX_CB710_SG_H
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#define LINUX_CB710_SG_H
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#include <linux/highmem.h>
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#include <linux/scatterlist.h>
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/*
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* 32-bit PIO mapping sg iterator
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*
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* Hides scatterlist access issues - fragment boundaries, alignment, page
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* mapping - for drivers using 32-bit-word-at-a-time-PIO (ie. PCI devices
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* without DMA support).
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*
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* Best-case reading (transfer from device):
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* sg_miter_start(, SG_MITER_TO_SG);
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* cb710_sg_dwiter_write_from_io();
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* sg_miter_stop();
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*
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* Best-case writing (transfer to device):
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* sg_miter_start(, SG_MITER_FROM_SG);
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* cb710_sg_dwiter_read_to_io();
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* sg_miter_stop();
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*/
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uint32_t cb710_sg_dwiter_read_next_block(struct sg_mapping_iter *miter);
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void cb710_sg_dwiter_write_next_block(struct sg_mapping_iter *miter, uint32_t data);
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/**
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* cb710_sg_dwiter_write_from_io - transfer data to mapped buffer from 32-bit IO port
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* @miter: sg mapping iter
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* @port: PIO port - IO or MMIO address
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* @count: number of 32-bit words to transfer
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*
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* Description:
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* Reads @count 32-bit words from register @port and stores it in
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* buffer iterated by @miter. Data that would overflow the buffer
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* is silently ignored. Iterator is advanced by 4*@count bytes
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* or to the buffer's end whichever is closer.
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*
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* Context:
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* IRQ disabled if the SG_MITER_ATOMIC is set. Don't care otherwise.
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*/
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static inline void cb710_sg_dwiter_write_from_io(struct sg_mapping_iter *miter,
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void __iomem *port, size_t count)
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{
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while (count-- > 0)
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cb710_sg_dwiter_write_next_block(miter, ioread32(port));
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}
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/**
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* cb710_sg_dwiter_read_to_io - transfer data to 32-bit IO port from mapped buffer
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* @miter: sg mapping iter
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* @port: PIO port - IO or MMIO address
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* @count: number of 32-bit words to transfer
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*
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* Description:
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* Writes @count 32-bit words to register @port from buffer iterated
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* through @miter. If buffer ends before @count words are written
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* missing data is replaced by zeroes. @miter is advanced by 4*@count
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* bytes or to the buffer's end whichever is closer.
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*
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* Context:
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* IRQ disabled if the SG_MITER_ATOMIC is set. Don't care otherwise.
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*/
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static inline void cb710_sg_dwiter_read_to_io(struct sg_mapping_iter *miter,
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void __iomem *port, size_t count)
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{
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while (count-- > 0)
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iowrite32(cb710_sg_dwiter_read_next_block(miter), port);
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}
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#endif /* LINUX_CB710_SG_H */
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