diff options
Diffstat (limited to 'arch/openrisc')
| -rw-r--r-- | arch/openrisc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/openrisc/include/asm/fixmap.h | 31 | ||||
| -rw-r--r-- | arch/openrisc/include/asm/page.h | 7 | ||||
| -rw-r--r-- | arch/openrisc/kernel/setup.c | 6 | ||||
| -rw-r--r-- | arch/openrisc/kernel/smp.c | 4 | ||||
| -rw-r--r-- | arch/openrisc/kernel/traps.c | 48 |
6 files changed, 25 insertions, 72 deletions
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index fd9bb76a61..3586cda55b 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -25,6 +25,7 @@ config OPENRISC select GENERIC_CPU_DEVICES select HAVE_PCI select HAVE_UID16 + select HAVE_PAGE_SIZE_8KB select GENERIC_ATOMIC64 select GENERIC_CLOCKEVENTS_BROADCAST select GENERIC_SMP_IDLE_THREAD diff --git a/arch/openrisc/include/asm/fixmap.h b/arch/openrisc/include/asm/fixmap.h index ad78e50b7b..ecdb98a583 100644 --- a/arch/openrisc/include/asm/fixmap.h +++ b/arch/openrisc/include/asm/fixmap.h @@ -50,35 +50,6 @@ enum fixed_addresses { /* FIXADDR_BOTTOM might be a better name here... */ #define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) -#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT)) -#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT) - -/* - * 'index to address' translation. If anyone tries to use the idx - * directly without tranlation, we catch the bug with a NULL-deference - * kernel oops. Illegal ranges of incoming indices are caught too. - */ -static __always_inline unsigned long fix_to_virt(const unsigned int idx) -{ - /* - * this branch gets completely eliminated after inlining, - * except when someone tries to use fixaddr indices in an - * illegal way. (such as mixing up address types or using - * out-of-range indices). - * - * If it doesn't get removed, the linker will complain - * loudly with a reasonably clear error message.. - */ - if (idx >= __end_of_fixed_addresses) - BUG(); - - return __fix_to_virt(idx); -} - -static inline unsigned long virt_to_fix(const unsigned long vaddr) -{ - BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START); - return __virt_to_fix(vaddr); -} +#include <asm-generic/fixmap.h> #endif diff --git a/arch/openrisc/include/asm/page.h b/arch/openrisc/include/asm/page.h index 44fc1fd567..1d5913f67c 100644 --- a/arch/openrisc/include/asm/page.h +++ b/arch/openrisc/include/asm/page.h @@ -18,7 +18,7 @@ /* PAGE_SHIFT determines the page size */ -#define PAGE_SHIFT 13 +#define PAGE_SHIFT CONFIG_PAGE_SHIFT #ifdef __ASSEMBLY__ #define PAGE_SIZE (1 << PAGE_SHIFT) #else @@ -77,11 +77,6 @@ static inline unsigned long virt_to_pfn(const void *kaddr) return __pa(kaddr) >> PAGE_SHIFT; } -static inline void * pfn_to_virt(unsigned long pfn) -{ - return (void *)((unsigned long)__va(pfn) << PAGE_SHIFT); -} - #define virt_to_page(addr) \ (mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)) diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c index 9cf7fb6044..be56eaafc8 100644 --- a/arch/openrisc/kernel/setup.c +++ b/arch/openrisc/kernel/setup.c @@ -255,6 +255,9 @@ void calibrate_delay(void) void __init setup_arch(char **cmdline_p) { + /* setup memblock allocator */ + setup_memory(); + unflatten_and_copy_device_tree(); setup_cpuinfo(); @@ -278,9 +281,6 @@ void __init setup_arch(char **cmdline_p) } #endif - /* setup memblock allocator */ - setup_memory(); - /* paging_init() sets up the MMU and marks all pages as reserved */ paging_init(); diff --git a/arch/openrisc/kernel/smp.c b/arch/openrisc/kernel/smp.c index 1c5a2d71d6..86da4bc5ee 100644 --- a/arch/openrisc/kernel/smp.c +++ b/arch/openrisc/kernel/smp.c @@ -57,10 +57,6 @@ static void boot_secondary(unsigned int cpu, struct task_struct *idle) spin_unlock(&boot_lock); } -void __init smp_prepare_boot_cpu(void) -{ -} - void __init smp_init_cpus(void) { struct device_node *cpu; diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c index 90554a5558..9370888c9a 100644 --- a/arch/openrisc/kernel/traps.c +++ b/arch/openrisc/kernel/traps.c @@ -180,39 +180,29 @@ asmlinkage void unhandled_exception(struct pt_regs *regs, int ea, int vector) asmlinkage void do_fpe_trap(struct pt_regs *regs, unsigned long address) { - if (user_mode(regs)) { - int code = FPE_FLTUNK; - unsigned long fpcsr = regs->fpcsr; - - if (fpcsr & SPR_FPCSR_IVF) - code = FPE_FLTINV; - else if (fpcsr & SPR_FPCSR_OVF) - code = FPE_FLTOVF; - else if (fpcsr & SPR_FPCSR_UNF) - code = FPE_FLTUND; - else if (fpcsr & SPR_FPCSR_DZF) - code = FPE_FLTDIV; - else if (fpcsr & SPR_FPCSR_IXF) - code = FPE_FLTRES; - - /* Clear all flags */ - regs->fpcsr &= ~SPR_FPCSR_ALLF; - - force_sig_fault(SIGFPE, code, (void __user *)regs->pc); - } else { - pr_emerg("KERNEL: Illegal fpe exception 0x%.8lx\n", regs->pc); - die("Die:", regs, SIGFPE); - } + int code = FPE_FLTUNK; + unsigned long fpcsr = regs->fpcsr; + + if (fpcsr & SPR_FPCSR_IVF) + code = FPE_FLTINV; + else if (fpcsr & SPR_FPCSR_OVF) + code = FPE_FLTOVF; + else if (fpcsr & SPR_FPCSR_UNF) + code = FPE_FLTUND; + else if (fpcsr & SPR_FPCSR_DZF) + code = FPE_FLTDIV; + else if (fpcsr & SPR_FPCSR_IXF) + code = FPE_FLTRES; + + /* Clear all flags */ + regs->fpcsr &= ~SPR_FPCSR_ALLF; + + force_sig_fault(SIGFPE, code, (void __user *)regs->pc); } asmlinkage void do_trap(struct pt_regs *regs, unsigned long address) { - if (user_mode(regs)) { - force_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *)regs->pc); - } else { - pr_emerg("KERNEL: Illegal trap exception 0x%.8lx\n", regs->pc); - die("Die:", regs, SIGILL); - } + force_sig_fault(SIGTRAP, TRAP_BRKPT, (void __user *)regs->pc); } asmlinkage void do_unaligned_access(struct pt_regs *regs, unsigned long address) |