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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.
76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
#ifndef __OF_RESERVED_MEM_H
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#define __OF_RESERVED_MEM_H
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#include <linux/device.h>
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struct of_phandle_args;
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struct reserved_mem_ops;
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struct reserved_mem {
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const char *name;
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unsigned long fdt_node;
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unsigned long phandle;
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const struct reserved_mem_ops *ops;
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phys_addr_t base;
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phys_addr_t size;
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void *priv;
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};
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struct reserved_mem_ops {
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int (*device_init)(struct reserved_mem *rmem,
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struct device *dev);
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void (*device_release)(struct reserved_mem *rmem,
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struct device *dev);
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};
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typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem);
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#define RESERVEDMEM_OF_DECLARE(name, compat, init) \
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_OF_DECLARE(reservedmem, name, compat, init, reservedmem_of_init_fn)
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#ifdef CONFIG_OF_RESERVED_MEM
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int of_reserved_mem_device_init_by_idx(struct device *dev,
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struct device_node *np, int idx);
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void of_reserved_mem_device_release(struct device *dev);
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int early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
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phys_addr_t align,
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phys_addr_t start,
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phys_addr_t end,
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bool nomap,
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phys_addr_t *res_base);
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void fdt_init_reserved_mem(void);
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void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
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phys_addr_t base, phys_addr_t size);
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#else
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static inline int of_reserved_mem_device_init_by_idx(struct device *dev,
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struct device_node *np, int idx)
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{
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return -ENOSYS;
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}
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static inline void of_reserved_mem_device_release(struct device *pdev) { }
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static inline void fdt_init_reserved_mem(void) { }
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static inline void fdt_reserved_mem_save_node(unsigned long node,
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const char *uname, phys_addr_t base, phys_addr_t size) { }
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#endif
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/**
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* of_reserved_mem_device_init() - assign reserved memory region to given device
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* @dev: Pointer to the device to configure
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*
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* This function assigns respective DMA-mapping operations based on the first
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* reserved memory region specified by 'memory-region' property in device tree
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* node of the given device.
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*
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* Returns error code or zero on success.
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*/
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static inline int of_reserved_mem_device_init(struct device *dev)
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{
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return of_reserved_mem_device_init_by_idx(dev, dev->of_node, 0);
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}
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#endif /* __OF_RESERVED_MEM_H */
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