diff options
Diffstat (limited to 'arch/openrisc/include')
23 files changed, 186 insertions, 415 deletions
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild index 11162e6c878..480af0d9c2f 100644 --- a/arch/openrisc/include/asm/Kbuild +++ b/arch/openrisc/include/asm/Kbuild @@ -1,17 +1,17 @@ -include include/asm-generic/Kbuild.asm -header-y += spr_defs.h +header-y += ucontext.h generic-y += atomic.h generic-y += auxvec.h +generic-y += barrier.h generic-y += bitsperlong.h generic-y += bug.h generic-y += bugs.h generic-y += cacheflush.h generic-y += checksum.h -generic-y += cmpxchg.h +generic-y += clkdev.h generic-y += cmpxchg-local.h -generic-y += cpumask.h +generic-y += cmpxchg.h generic-y += cputime.h generic-y += current.h generic-y += device.h @@ -19,11 +19,13 @@ generic-y += div64.h generic-y += dma.h generic-y += emergency-restart.h generic-y += errno.h +generic-y += exec.h generic-y += fb.h generic-y += fcntl.h generic-y += ftrace.h generic-y += futex.h generic-y += hardirq.h +generic-y += hash.h generic-y += hw_irq.h generic-y += ioctl.h generic-y += ioctls.h @@ -31,7 +33,9 @@ generic-y += ipcbuf.h generic-y += irq_regs.h generic-y += kdebug.h generic-y += kmap_types.h +generic-y += kvm_para.h generic-y += local.h +generic-y += mcs_spinlock.h generic-y += mman.h generic-y += module.h generic-y += msgbuf.h @@ -39,8 +43,8 @@ generic-y += pci.h generic-y += percpu.h generic-y += poll.h generic-y += posix_types.h +generic-y += preempt.h generic-y += resource.h -generic-y += rmap.h generic-y += scatterlist.h generic-y += sections.h generic-y += segment.h @@ -52,13 +56,18 @@ generic-y += siginfo.h generic-y += signal.h generic-y += socket.h generic-y += sockios.h -generic-y += statfs.h generic-y += stat.h +generic-y += statfs.h generic-y += string.h generic-y += swab.h +generic-y += switch_to.h generic-y += termbits.h generic-y += termios.h generic-y += topology.h +generic-y += trace_clock.h generic-y += types.h generic-y += ucontext.h generic-y += user.h +generic-y += vga.h +generic-y += word-at-a-time.h +generic-y += xor.h diff --git a/arch/openrisc/include/asm/bitops.h b/arch/openrisc/include/asm/bitops.h index a9e11efae14..3003cdad561 100644 --- a/arch/openrisc/include/asm/bitops.h +++ b/arch/openrisc/include/asm/bitops.h @@ -27,14 +27,7 @@ #include <linux/irqflags.h> #include <linux/compiler.h> - -/* - * clear_bit may not imply a memory barrier - */ -#ifndef smp_mb__before_clear_bit -#define smp_mb__before_clear_bit() smp_mb() -#define smp_mb__after_clear_bit() smp_mb() -#endif +#include <asm/barrier.h> #include <asm/bitops/__ffs.h> #include <asm-generic/bitops/ffz.h> @@ -54,6 +47,7 @@ #include <asm-generic/bitops/atomic.h> #include <asm-generic/bitops/non-atomic.h> +#include <asm-generic/bitops/le.h> #include <asm-generic/bitops/ext2-atomic.h> #endif /* __ASM_GENERIC_BITOPS_H */ diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h index b206ba4608b..fab8628e1b6 100644 --- a/arch/openrisc/include/asm/dma-mapping.h +++ b/arch/openrisc/include/asm/dma-mapping.h @@ -20,150 +20,71 @@ /* * See Documentation/DMA-API-HOWTO.txt and * Documentation/DMA-API.txt for documentation. - * - * This file is written with the intention of eventually moving over - * to largely using asm-generic/dma-mapping-common.h in its place. */ #include <linux/dma-debug.h> #include <asm-generic/dma-coherent.h> #include <linux/kmemcheck.h> +#include <linux/dma-mapping.h> #define DMA_ERROR_CODE (~(dma_addr_t)0x0) +extern struct dma_map_ops or1k_dma_map_ops; -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - -void *or1k_dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag); -void or1k_dma_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_handle); -dma_addr_t or1k_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction dir, - struct dma_attrs *attrs); -void or1k_unmap_page(struct device *dev, dma_addr_t dma_handle, - size_t size, enum dma_data_direction dir, - struct dma_attrs *attrs); -int or1k_map_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir, - struct dma_attrs *attrs); -void or1k_unmap_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir, - struct dma_attrs *attrs); -void or1k_sync_single_for_cpu(struct device *dev, - dma_addr_t dma_handle, size_t size, - enum dma_data_direction dir); -void or1k_sync_single_for_device(struct device *dev, - dma_addr_t dma_handle, size_t size, - enum dma_data_direction dir); - -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) +static inline struct dma_map_ops *get_dma_ops(struct device *dev) { - void *memory; - - memory = or1k_dma_alloc_coherent(dev, size, dma_handle, flag); - - debug_dma_alloc_coherent(dev, size, *dma_handle, memory); - return memory; + return &or1k_dma_map_ops; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) -{ - debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); - or1k_dma_free_coherent(dev, size, cpu_addr, dma_handle); -} +#include <asm-generic/dma-mapping-common.h> -static inline dma_addr_t dma_map_single(struct device *dev, void *ptr, - size_t size, - enum dma_data_direction dir) -{ - dma_addr_t addr; - - kmemcheck_mark_initialized(ptr, size); - BUG_ON(!valid_dma_direction(dir)); - addr = or1k_map_page(dev, virt_to_page(ptr), - (unsigned long)ptr & ~PAGE_MASK, size, - dir, NULL); - debug_dma_map_page(dev, virt_to_page(ptr), - (unsigned long)ptr & ~PAGE_MASK, size, - dir, addr, true); - return addr; -} +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) -static inline void dma_unmap_single(struct device *dev, dma_addr_t addr, - size_t size, - enum dma_data_direction dir) +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { - BUG_ON(!valid_dma_direction(dir)); - or1k_unmap_page(dev, addr, size, dir, NULL); - debug_dma_unmap_page(dev, addr, size, dir, true); -} + struct dma_map_ops *ops = get_dma_ops(dev); + void *memory; -static inline int dma_map_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir) -{ - int i, ents; - struct scatterlist *s; + memory = ops->alloc(dev, size, dma_handle, gfp, attrs); - for_each_sg(sg, s, nents, i) - kmemcheck_mark_initialized(sg_virt(s), s->length); - BUG_ON(!valid_dma_direction(dir)); - ents = or1k_map_sg(dev, sg, nents, dir, NULL); - debug_dma_map_sg(dev, sg, nents, ents, dir); + debug_dma_alloc_coherent(dev, size, *dma_handle, memory); - return ents; + return memory; } -static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir) -{ - BUG_ON(!valid_dma_direction(dir)); - debug_dma_unmap_sg(dev, sg, nents, dir); - or1k_unmap_sg(dev, sg, nents, dir, NULL); -} +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) -static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, - size_t offset, size_t size, - enum dma_data_direction dir) +static inline void dma_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { - dma_addr_t addr; + struct dma_map_ops *ops = get_dma_ops(dev); - kmemcheck_mark_initialized(page_address(page) + offset, size); - BUG_ON(!valid_dma_direction(dir)); - addr = or1k_map_page(dev, page, offset, size, dir, NULL); - debug_dma_map_page(dev, page, offset, size, dir, addr, false); + debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); - return addr; + ops->free(dev, size, cpu_addr, dma_handle, attrs); } -static inline void dma_unmap_page(struct device *dev, dma_addr_t addr, - size_t size, enum dma_data_direction dir) +static inline void *dma_alloc_noncoherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp) { - BUG_ON(!valid_dma_direction(dir)); - or1k_unmap_page(dev, addr, size, dir, NULL); - debug_dma_unmap_page(dev, addr, size, dir, true); -} + struct dma_attrs attrs; -static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t addr, - size_t size, - enum dma_data_direction dir) -{ - BUG_ON(!valid_dma_direction(dir)); - or1k_sync_single_for_cpu(dev, addr, size, dir); - debug_dma_sync_single_for_cpu(dev, addr, size, dir); + dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs); + + return dma_alloc_attrs(dev, size, dma_handle, gfp, &attrs); } -static inline void dma_sync_single_for_device(struct device *dev, - dma_addr_t addr, size_t size, - enum dma_data_direction dir) +static inline void dma_free_noncoherent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle) { - BUG_ON(!valid_dma_direction(dir)); - or1k_sync_single_for_device(dev, addr, size, dir); - debug_dma_sync_single_for_device(dev, addr, size, dir); + struct dma_attrs attrs; + + dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs); + + dma_free_attrs(dev, size, cpu_addr, dma_handle, &attrs); } static inline int dma_supported(struct device *dev, u64 dma_mask) diff --git a/arch/openrisc/include/asm/elf.h b/arch/openrisc/include/asm/elf.h index 2ce603bbfdd..d334e204bbd 100644 --- a/arch/openrisc/include/asm/elf.h +++ b/arch/openrisc/include/asm/elf.h @@ -15,52 +15,12 @@ * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ - #ifndef __ASM_OPENRISC_ELF_H #define __ASM_OPENRISC_ELF_H -/* - * ELF register definitions.. - */ -#include <linux/types.h> -#include <linux/ptrace.h> - -/* The OR1K relocation types... not all relevant for module loader */ -#define R_OR32_NONE 0 -#define R_OR32_32 1 -#define R_OR32_16 2 -#define R_OR32_8 3 -#define R_OR32_CONST 4 -#define R_OR32_CONSTH 5 -#define R_OR32_JUMPTARG 6 -#define R_OR32_VTINHERIT 7 -#define R_OR32_VTENTRY 8 - -typedef unsigned long elf_greg_t; - -/* - * Note that NGREG is defined to ELF_NGREG in include/linux/elfcore.h, and is - * thus exposed to user-space. - */ -#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) -typedef elf_greg_t elf_gregset_t[ELF_NGREG]; - -/* A placeholder; OR32 does not have fp support yes, so no fp regs for now. */ -typedef unsigned long elf_fpregset_t; - -/* This should be moved to include/linux/elf.h */ -#define EM_OR32 0x8472 -#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ - -/* - * These are used to set parameters in the core dumps. - */ -#define ELF_ARCH EM_OR32 -#define ELF_CLASS ELFCLASS32 -#define ELF_DATA ELFDATA2MSB - -#ifdef __KERNEL__ +#include <linux/types.h> +#include <uapi/asm/elf.h> /* * This is used to ensure we don't load something for the wrong architecture. @@ -102,7 +62,4 @@ extern void dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt); #define ELF_PLATFORM (NULL) -#define SET_PERSONALITY(ex) set_personality(PER_LINUX) - -#endif /* __KERNEL__ */ #endif diff --git a/arch/openrisc/include/asm/gpio.h b/arch/openrisc/include/asm/gpio.h index 0b0d174f47c..b3799d88ffc 100644 --- a/arch/openrisc/include/asm/gpio.h +++ b/arch/openrisc/include/asm/gpio.h @@ -1,65 +1,4 @@ -/* - * OpenRISC Linux - * - * Linux architectural port borrowing liberally from similar works of - * others. All original copyrights apply as per the original source - * declaration. - * - * OpenRISC implementation: - * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> - * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> - * et al. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef __ASM_OPENRISC_GPIO_H -#define __ASM_OPENRISC_GPIO_H - -#include <linux/errno.h> -#include <asm-generic/gpio.h> - -#ifdef CONFIG_GPIOLIB - -/* - * OpenRISC (or1k) does not have on-chip GPIO's so there is not really - * any standardized implementation that makes sense here. If passing - * through gpiolib becomes a bottleneck then it may make sense, on a - * case-by-case basis, to implement these inlined/rapid versions. - * - * Just call gpiolib. - */ -static inline int gpio_get_value(unsigned int gpio) -{ - return __gpio_get_value(gpio); -} - -static inline void gpio_set_value(unsigned int gpio, int value) -{ - __gpio_set_value(gpio, value); -} - -static inline int gpio_cansleep(unsigned int gpio) -{ - return __gpio_cansleep(gpio); -} - -/* - * Not implemented, yet. - */ -static inline int gpio_to_irq(unsigned int gpio) -{ - return -ENOSYS; -} - -static inline int irq_to_gpio(unsigned int irq) -{ - return -EINVAL; -} - -#endif /* CONFIG_GPIOLIB */ - -#endif /* __ASM_OPENRISC_GPIO_H */ +#ifndef __LINUX_GPIO_H +#warning Include linux/gpio.h instead of asm/gpio.h +#include <linux/gpio.h> +#endif diff --git a/arch/openrisc/include/asm/io.h b/arch/openrisc/include/asm/io.h index 07f5299d6c2..7c691399da3 100644 --- a/arch/openrisc/include/asm/io.h +++ b/arch/openrisc/include/asm/io.h @@ -30,6 +30,7 @@ #define PIO_MASK 0 #include <asm-generic/io.h> +#include <asm/pgtable.h> extern void __iomem *__ioremap(phys_addr_t offset, unsigned long size, pgprot_t prot); diff --git a/arch/openrisc/include/asm/page.h b/arch/openrisc/include/asm/page.h index b041b344b22..108906f991d 100644 --- a/arch/openrisc/include/asm/page.h +++ b/arch/openrisc/include/asm/page.h @@ -71,9 +71,6 @@ typedef struct page *pgtable_t; #define __pgd(x) ((pgd_t) { (x) }) #define __pgprot(x) ((pgprot_t) { (x) }) -extern unsigned long memory_start; -extern unsigned long memory_end; - #endif /* !__ASSEMBLY__ */ @@ -94,8 +91,7 @@ extern unsigned long memory_end; #define pfn_valid(pfn) ((pfn) < max_mapnr) -#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ - ((void *)(kaddr) < (void *)memory_end)) +#define virt_addr_valid(kaddr) (pfn_valid(virt_to_pfn(kaddr))) #endif /* __ASSEMBLY__ */ diff --git a/arch/openrisc/include/asm/pgalloc.h b/arch/openrisc/include/asm/pgalloc.h index 05c39ecd2ef..21484e5b9e9 100644 --- a/arch/openrisc/include/asm/pgalloc.h +++ b/arch/openrisc/include/asm/pgalloc.h @@ -78,8 +78,13 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm, { struct page *pte; pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0); - if (pte) - clear_page(page_address(pte)); + if (!pte) + return NULL; + clear_page(page_address(pte)); + if (!pgtable_page_ctor(pte)) { + __free_page(pte); + return NULL; + } return pte; } @@ -90,6 +95,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) static inline void pte_free(struct mm_struct *mm, struct page *pte) { + pgtable_page_dtor(pte); __free_page(pte); } diff --git a/arch/openrisc/include/asm/pgtable.h b/arch/openrisc/include/asm/pgtable.h index 043505d7f68..37bf6a3ef8f 100644 --- a/arch/openrisc/include/asm/pgtable.h +++ b/arch/openrisc/include/asm/pgtable.h @@ -446,16 +446,12 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, #define kern_addr_valid(addr) (1) -#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ - remap_pfn_range(vma, vaddr, pfn, size, prot) - #include <asm-generic/pgtable.h> /* * No page table caches to initialise */ #define pgtable_cache_init() do { } while (0) -#define io_remap_page_range remap_page_range typedef pte_t *pte_addr_t; diff --git a/arch/openrisc/include/asm/processor.h b/arch/openrisc/include/asm/processor.h index bb54c97b978..cab746fa9e8 100644 --- a/arch/openrisc/include/asm/processor.h +++ b/arch/openrisc/include/asm/processor.h @@ -70,22 +70,15 @@ struct thread_struct { */ #define task_pt_regs(task) user_regs(task_thread_info(task)) -#define current_regs() user_regs(current_thread_info()) - -extern inline void prepare_to_copy(struct task_struct *tsk) -{ -} #define INIT_SP (sizeof(init_stack) + (unsigned long) &init_stack) #define INIT_THREAD { } -#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc); -#define KSTK_ESP(tsk) (task_pt_regs(tsk)->sp); - +#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc) +#define KSTK_ESP(tsk) (task_pt_regs(tsk)->sp) -extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); void start_thread(struct pt_regs *regs, unsigned long nip, unsigned long sp); void release_thread(struct task_struct *); @@ -107,7 +100,7 @@ extern unsigned long thread_saved_pc(struct task_struct *t); #define init_stack (init_thread_union.stack) -#define cpu_relax() do { } while (0) +#define cpu_relax() barrier() #endif /* __ASSEMBLY__ */ #endif /* __ASM_OPENRISC_PROCESSOR_H */ diff --git a/arch/openrisc/include/asm/prom.h b/arch/openrisc/include/asm/prom.h deleted file mode 100644 index e1f3fe26606..00000000000 --- a/arch/openrisc/include/asm/prom.h +++ /dev/null @@ -1,77 +0,0 @@ -/* - * OpenRISC Linux - * - * Linux architectural port borrowing liberally from similar works of - * others. All original copyrights apply as per the original source - * declaration. - * - * OpenRISC implementation: - * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> - * et al. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/of.h> /* linux/of.h gets to determine #include ordering */ - -#ifndef _ASM_OPENRISC_PROM_H -#define _ASM_OPENRISC_PROM_H -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - -#include <linux/types.h> -#include <asm/irq.h> -#include <linux/atomic.h> -#include <linux/of_irq.h> -#include <linux/of_fdt.h> -#include <linux/of_address.h> -#include <linux/proc_fs.h> -#include <linux/platform_device.h> -#define HAVE_ARCH_DEVTREE_FIXUPS - -/* Other Prototypes */ -extern int early_uartlite_console(void); - -/* Parse the ibm,dma-window property of an OF node into the busno, phys and - * size parameters. - */ -void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop, - unsigned long *busno, unsigned long *phys, unsigned long *size); - -extern void kdump_move_device_tree(void); - -/* CPU OF node matching */ -struct device_node *of_get_cpu_node(int cpu, unsigned int *thread); - -/* Get the MAC address */ -extern const void *of_get_mac_address(struct device_node *np); - -/** - * of_irq_map_pci - Resolve the interrupt for a PCI device - * @pdev: the device whose interrupt is to be resolved - * @out_irq: structure of_irq filled by this function - * - * This function resolves the PCI interrupt for a given PCI device. If a - * device-node exists for a given pci_dev, it will use normal OF tree - * walking. If not, it will implement standard swizzling and walk up the - * PCI tree until an device-node is found, at which point it will finish - * resolving using the OF tree walking. - */ -struct pci_dev; -extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq); - -/* This routine is here to provide compatibility with how powerpc - * handles IRQ mapping for OF device nodes. We precompute and permanently - * register them in the platform_device objects, whereas powerpc computes them - * on request. - */ -static inline void irq_dispose_mapping(unsigned int virq) -{ -} - -#endif /* __ASSEMBLY__ */ -#endif /* __KERNEL__ */ -#endif /* _ASM_OPENRISC_PROM_H */ diff --git a/arch/openrisc/include/asm/ptrace.h b/arch/openrisc/include/asm/ptrace.h index e612ce4512c..6ca17264c39 100644 --- a/arch/openrisc/include/asm/ptrace.h +++ b/arch/openrisc/include/asm/ptrace.h @@ -15,27 +15,12 @@ * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ - #ifndef __ASM_OPENRISC_PTRACE_H #define __ASM_OPENRISC_PTRACE_H -#include <asm/spr_defs.h> -#ifndef __ASSEMBLY__ -/* - * This is the layout of the regset returned by the GETREGSET ptrace call - */ -struct user_regs_struct { - /* GPR R0-R31... */ - unsigned long gpr[32]; - unsigned long pc; - unsigned long sr; - unsigned long pad1; - unsigned long pad2; -}; -#endif - -#ifdef __KERNEL__ +#include <asm/spr_defs.h> +#include <uapi/asm/ptrace.h> /* * Make kernel PTrace/register structures opaque to userspace... userspace can @@ -73,9 +58,13 @@ struct pt_regs { }; }; long pc; + /* For restarting system calls: + * Set to syscall number for syscall exceptions, + * -1 for all other exceptions. + */ long orig_gpr11; /* For restarting system calls */ - long syscallno; /* Syscall number (used by strace) */ long dummy; /* Cheap alignment fix */ + long dummy2; /* Cheap alignment fix */ }; /* TODO: Rename this to REDZONE because that's what it is */ @@ -132,6 +121,4 @@ static inline long regs_return_value(struct pt_regs *regs) #define PT_ORIG_GPR11 132 #define PT_SYSCALLNO 136 -#endif /* __KERNEL__ */ - #endif /* __ASM_OPENRISC_PTRACE_H */ diff --git a/arch/openrisc/include/asm/syscall.h b/arch/openrisc/include/asm/syscall.h index 9f0337055d2..b752bb67891 100644 --- a/arch/openrisc/include/asm/syscall.h +++ b/arch/openrisc/include/asm/syscall.h @@ -25,7 +25,7 @@ static inline int syscall_get_nr(struct task_struct *task, struct pt_regs *regs) { - return regs->syscallno ? regs->syscallno : -1; + return regs->orig_gpr11; } static inline void @@ -50,10 +50,7 @@ static inline void syscall_set_return_value(struct task_struct *task, struct pt_regs *regs, int error, long val) { - if (error) - regs->gpr[11] = -error; - else - regs->gpr[11] = val; + regs->gpr[11] = (long) error ?: val; } static inline void diff --git a/arch/openrisc/include/asm/syscalls.h b/arch/openrisc/include/asm/syscalls.h index 84a978af44d..8ee816812a9 100644 --- a/arch/openrisc/include/asm/syscalls.h +++ b/arch/openrisc/include/asm/syscalls.h @@ -24,4 +24,11 @@ asmlinkage long sys_or1k_atomic(unsigned long type, unsigned long *v1, #include <asm-generic/syscalls.h> +asmlinkage long __sys_clone(unsigned long clone_flags, unsigned long newsp, + void __user *parent_tid, void __user *child_tid, int tls); +asmlinkage long __sys_fork(void); + +#define sys_clone __sys_clone +#define sys_fork __sys_fork + #endif /* __ASM_OPENRISC_SYSCALLS_H */ diff --git a/arch/openrisc/include/asm/thread_info.h b/arch/openrisc/include/asm/thread_info.h index 07a8bc080ef..d797acc901e 100644 --- a/arch/openrisc/include/asm/thread_info.h +++ b/arch/openrisc/include/asm/thread_info.h @@ -121,7 +121,6 @@ register struct thread_info *current_thread_info_reg asm("r10"); #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) #define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP) -#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) diff --git a/arch/openrisc/include/asm/uaccess.h b/arch/openrisc/include/asm/uaccess.h index c310e45b538..ab2e7a198a4 100644 --- a/arch/openrisc/include/asm/uaccess.h +++ b/arch/openrisc/include/asm/uaccess.h @@ -26,7 +26,6 @@ #include <linux/thread_info.h> #include <linux/prefetch.h> #include <linux/string.h> -#include <linux/thread_info.h> #include <asm/page.h> #define VERIFY_READ 0 @@ -314,42 +313,12 @@ clear_user(void *addr, unsigned long size) return size; } -extern int __strncpy_from_user(char *dst, const char *src, long count); - -static inline long strncpy_from_user(char *dst, const char *src, long count) -{ - if (access_ok(VERIFY_READ, src, 1)) - return __strncpy_from_user(dst, src, count); - return -EFAULT; -} - -/* - * Return the size of a string (including the ending 0) - * - * Return 0 for error - */ - -extern int __strnlen_user(const char *str, long len, unsigned long top); - -/* - * Returns the length of the string at str (including the null byte), - * or 0 if we hit a page we can't access, - * or something > len if we didn't find a null byte. - * - * The `top' parameter to __strnlen_user is to make sure that - * we can never overflow from the user area into kernel space. - */ -static inline long strnlen_user(const char __user *str, long len) -{ - unsigned long top = (unsigned long)get_fs(); - unsigned long res = 0; - - if (__addr_ok(str)) - res = __strnlen_user(str, len, top); +#define user_addr_max() \ + (segment_eq(get_fs(), USER_DS) ? TASK_SIZE : ~0UL) - return res; -} +extern long strncpy_from_user(char *dest, const char __user *src, long count); -#define strlen_user(str) strnlen_user(str, TASK_SIZE-1) +extern __must_check long strlen_user(const char __user *str); +extern __must_check long strnlen_user(const char __user *str, long n); #endif /* __ASM_OPENRISC_UACCESS_H */ diff --git a/arch/openrisc/include/uapi/asm/Kbuild b/arch/openrisc/include/uapi/asm/Kbuild new file mode 100644 index 00000000000..80761eb82b5 --- /dev/null +++ b/arch/openrisc/include/uapi/asm/Kbuild @@ -0,0 +1,10 @@ +# UAPI Header export list +include include/uapi/asm-generic/Kbuild.asm + +header-y += byteorder.h +header-y += elf.h +header-y += kvm_para.h +header-y += param.h +header-y += ptrace.h +header-y += sigcontext.h +header-y += unistd.h diff --git a/arch/openrisc/include/asm/byteorder.h b/arch/openrisc/include/uapi/asm/byteorder.h index 60d14f7e14e..60d14f7e14e 100644 --- a/arch/openrisc/include/asm/byteorder.h +++ b/arch/openrisc/include/uapi/asm/byteorder.h diff --git a/arch/openrisc/include/uapi/asm/elf.h b/arch/openrisc/include/uapi/asm/elf.h new file mode 100644 index 00000000000..f02ea583042 --- /dev/null +++ b/arch/openrisc/include/uapi/asm/elf.h @@ -0,0 +1,69 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef _UAPI__ASM_OPENRISC_ELF_H +#define _UAPI__ASM_OPENRISC_ELF_H + +/* + * This files is partially exported to userspace. This allows us to keep + * the ELF bits in one place which should assist in keeping the kernel and + * userspace in sync. + */ + +/* + * ELF register definitions.. + */ + +/* for struct user_regs_struct definition */ +#include <asm/ptrace.h> + +/* The OR1K relocation types... not all relevant for module loader */ +#define R_OR32_NONE 0 +#define R_OR32_32 1 +#define R_OR32_16 2 +#define R_OR32_8 3 +#define R_OR32_CONST 4 +#define R_OR32_CONSTH 5 +#define R_OR32_JUMPTARG 6 +#define R_OR32_VTINHERIT 7 +#define R_OR32_VTENTRY 8 + +typedef unsigned long elf_greg_t; + +/* + * Note that NGREG is defined to ELF_NGREG in include/linux/elfcore.h, and is + * thus exposed to user-space. + */ +#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +/* A placeholder; OR32 does not have fp support yes, so no fp regs for now. */ +typedef unsigned long elf_fpregset_t; + +/* This should be moved to include/linux/elf.h */ +#define EM_OR32 0x8472 +#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_ARCH EM_OR32 +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2MSB + +#endif /* _UAPI__ASM_OPENRISC_ELF_H */ diff --git a/arch/openrisc/include/asm/param.h b/arch/openrisc/include/uapi/asm/param.h index c39a336610e..c39a336610e 100644 --- a/arch/openrisc/include/asm/param.h +++ b/arch/openrisc/include/uapi/asm/param.h diff --git a/arch/openrisc/include/asm/system.h b/arch/openrisc/include/uapi/asm/ptrace.h index cf658882186..9760bd17fbc 100644 --- a/arch/openrisc/include/asm/system.h +++ b/arch/openrisc/include/uapi/asm/ptrace.h @@ -16,20 +16,20 @@ * (at your option) any later version. */ -#ifndef __ASM_OPENRISC_SYSTEM_H -#define __ASM_OPENRISC_SYSTEM_H +#ifndef _UAPI__ASM_OPENRISC_PTRACE_H +#define _UAPI__ASM_OPENRISC_PTRACE_H -#ifdef __KERNEL__ #ifndef __ASSEMBLY__ - -#include <asm/spr.h> -#include <asm-generic/system.h> - -/* We probably need this definition, but the generic system.h provides it - * and it's not used on our arch anyway... +/* + * This is the layout of the regset returned by the GETREGSET ptrace call */ -/*#define nop() __asm__ __volatile__ ("l.nop"::)*/ +struct user_regs_struct { + /* GPR R0-R31... */ + unsigned long gpr[32]; + unsigned long pc; + unsigned long sr; +}; +#endif + -#endif /* __ASSEMBLY__ */ -#endif /* __KERNEL__ */ -#endif /* __ASM_OPENRISC_SYSTEM_H */ +#endif /* _UAPI__ASM_OPENRISC_PTRACE_H */ diff --git a/arch/openrisc/include/asm/sigcontext.h b/arch/openrisc/include/uapi/asm/sigcontext.h index b79c2b19afb..b79c2b19afb 100644 --- a/arch/openrisc/include/asm/sigcontext.h +++ b/arch/openrisc/include/uapi/asm/sigcontext.h diff --git a/arch/openrisc/include/asm/unistd.h b/arch/openrisc/include/uapi/asm/unistd.h index 89af3ab5c2e..ce40b71df00 100644 --- a/arch/openrisc/include/asm/unistd.h +++ b/arch/openrisc/include/uapi/asm/unistd.h @@ -16,16 +16,14 @@ * (at your option) any later version. */ -#if !defined(__ASM_OPENRISC_UNISTD_H) || defined(__SYSCALL) -#define __ASM_OPENRISC_UNISTD_H - #define __ARCH_HAVE_MMU #define sys_mmap2 sys_mmap_pgoff +#define __ARCH_WANT_SYS_FORK +#define __ARCH_WANT_SYS_CLONE + #include <asm-generic/unistd.h> #define __NR_or1k_atomic __NR_arch_specific_syscall __SYSCALL(__NR_or1k_atomic, sys_or1k_atomic) - -#endif /* __ASM_OPENRISC_UNISTD_H */ |