eb3d3ec567
Pull ARM updates from Russell King: - Major clean-up of the L2 cache support code. The existing mess was becoming rather unmaintainable through all the additions that others have done over time. This turns it into a much nicer structure, and implements a few performance improvements as well. - Clean up some of the CP15 control register tweaks for alignment support, moving some code and data into alignment.c - DMA properties for ARM, from Santosh and reviewed by DT people. This adds DT properties to specify bus translations we can't discover automatically, and to indicate whether devices are coherent. - Hibernation support for ARM - Make ftrace work with read-only text in modules - add suspend support for PJ4B CPUs - rework interrupt masking for undefined instruction handling, which allows us to enable interrupts earlier in the handling of these exceptions. - support for big endian page tables - fix stacktrace support to exclude stacktrace functions from the trace, and add save_stack_trace_regs() implementation so that kprobes can record stack traces. - Add support for the Cortex-A17 CPU. - Remove last vestiges of ARM710 support. - Removal of ARM "meminfo" structure, finally converting us solely to memblock to handle the early memory initialisation. * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (142 commits) ARM: ensure C page table setup code follows assembly code (part II) ARM: ensure C page table setup code follows assembly code ARM: consolidate last remaining open-coded alignment trap enable ARM: remove global cr_no_alignment ARM: remove CPU_CP15 conditional from alignment.c ARM: remove unused adjust_cr() function ARM: move "noalign" command line option to alignment.c ARM: provide common method to clear bits in CPU control register ARM: 8025/1: Get rid of meminfo ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type ARM: 8066/1: correction for ARM patch 8031/2 ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation ARM: 8065/1: remove last use of CONFIG_CPU_ARM710 ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction ARM: 8047/1: rwsem: use asm-generic rwsem implementation ARM: l2c: trial at enabling some Cortex-A9 optimisations ARM: l2c: add warnings for stuff modifying aux_ctrl register values ARM: l2c: print a warning with L2C-310 caches if the cache size is modified ARM: l2c: remove old .set_debug method ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this ...
146 lines
3.9 KiB
C
146 lines
3.9 KiB
C
#ifndef __OF_ADDRESS_H
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#define __OF_ADDRESS_H
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#include <linux/ioport.h>
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#include <linux/errno.h>
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#include <linux/of.h>
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struct of_pci_range_parser {
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struct device_node *node;
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const __be32 *range;
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const __be32 *end;
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int np;
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int pna;
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};
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struct of_pci_range {
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u32 pci_space;
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u64 pci_addr;
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u64 cpu_addr;
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u64 size;
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u32 flags;
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};
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#define for_each_of_pci_range(parser, range) \
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for (; of_pci_range_parser_one(parser, range);)
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static inline void of_pci_range_to_resource(struct of_pci_range *range,
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struct device_node *np,
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struct resource *res)
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{
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res->flags = range->flags;
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res->start = range->cpu_addr;
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res->end = range->cpu_addr + range->size - 1;
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res->parent = res->child = res->sibling = NULL;
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res->name = np->full_name;
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}
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/* Translate a DMA address from device space to CPU space */
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extern u64 of_translate_dma_address(struct device_node *dev,
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const __be32 *in_addr);
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#ifdef CONFIG_OF_ADDRESS
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extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
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extern int of_address_to_resource(struct device_node *dev, int index,
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struct resource *r);
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extern struct device_node *of_find_matching_node_by_address(
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struct device_node *from,
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const struct of_device_id *matches,
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u64 base_address);
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extern void __iomem *of_iomap(struct device_node *device, int index);
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/* Extract an address from a device, returns the region size and
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* the address space flags too. The PCI version uses a BAR number
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* instead of an absolute index
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*/
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extern const __be32 *of_get_address(struct device_node *dev, int index,
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u64 *size, unsigned int *flags);
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extern unsigned long pci_address_to_pio(phys_addr_t addr);
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extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
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struct device_node *node);
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extern struct of_pci_range *of_pci_range_parser_one(
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struct of_pci_range_parser *parser,
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struct of_pci_range *range);
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extern int of_dma_get_range(struct device_node *np, u64 *dma_addr,
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u64 *paddr, u64 *size);
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extern bool of_dma_is_coherent(struct device_node *np);
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#else /* CONFIG_OF_ADDRESS */
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static inline struct device_node *of_find_matching_node_by_address(
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struct device_node *from,
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const struct of_device_id *matches,
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u64 base_address)
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{
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return NULL;
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}
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static inline const __be32 *of_get_address(struct device_node *dev, int index,
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u64 *size, unsigned int *flags)
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{
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return NULL;
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}
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static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
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struct device_node *node)
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{
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return -1;
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}
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static inline struct of_pci_range *of_pci_range_parser_one(
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struct of_pci_range_parser *parser,
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struct of_pci_range *range)
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{
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return NULL;
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}
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static inline int of_dma_get_range(struct device_node *np, u64 *dma_addr,
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u64 *paddr, u64 *size)
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{
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return -ENODEV;
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}
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static inline bool of_dma_is_coherent(struct device_node *np)
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{
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return false;
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}
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#endif /* CONFIG_OF_ADDRESS */
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#ifdef CONFIG_OF
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extern int of_address_to_resource(struct device_node *dev, int index,
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struct resource *r);
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void __iomem *of_iomap(struct device_node *node, int index);
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#else
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static inline int of_address_to_resource(struct device_node *dev, int index,
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struct resource *r)
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{
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return -EINVAL;
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}
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static inline void __iomem *of_iomap(struct device_node *device, int index)
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{
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return NULL;
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}
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#endif
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#if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
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extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
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u64 *size, unsigned int *flags);
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extern int of_pci_address_to_resource(struct device_node *dev, int bar,
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struct resource *r);
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#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
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static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
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struct resource *r)
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{
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return -ENOSYS;
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}
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static inline const __be32 *of_get_pci_address(struct device_node *dev,
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int bar_no, u64 *size, unsigned int *flags)
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{
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return NULL;
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}
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#endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
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#endif /* __OF_ADDRESS_H */
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