diff options
Diffstat (limited to 'arch/frv')
| -rw-r--r-- | arch/frv/Kconfig | 1 | ||||
| -rw-r--r-- | arch/frv/Kconfig.debug | 4 | ||||
| -rw-r--r-- | arch/frv/include/asm/pgtable.h | 3 | ||||
| -rw-r--r-- | arch/frv/include/asm/uaccess.h | 4 | ||||
| -rw-r--r-- | arch/frv/kernel/head.S | 5 | ||||
| -rw-r--r-- | arch/frv/kernel/setup.c | 15 | ||||
| -rw-r--r-- | arch/frv/kernel/traps.c | 2 | ||||
| -rw-r--r-- | arch/frv/mm/init.c | 57 |
8 files changed, 30 insertions, 61 deletions
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index 2ce731f9aa4d..4b6628ea381e 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig @@ -14,6 +14,7 @@ config FRV select ARCH_WANT_IPC_PARSE_VERSION select OLD_SIGSUSPEND3 select OLD_SIGACTION + select HAVE_DEBUG_STACKOVERFLOW config ZONE_DMA bool diff --git a/arch/frv/Kconfig.debug b/arch/frv/Kconfig.debug index 211f01bc4caa..98c99a3ed2be 100644 --- a/arch/frv/Kconfig.debug +++ b/arch/frv/Kconfig.debug @@ -2,10 +2,6 @@ menu "Kernel hacking" source "lib/Kconfig.debug" -config DEBUG_STACKOVERFLOW - bool "Check for stack overflows" - depends on DEBUG_KERNEL - config GDBSTUB bool "Remote GDB kernel debugging" depends on DEBUG_KERNEL diff --git a/arch/frv/include/asm/pgtable.h b/arch/frv/include/asm/pgtable.h index 6bc241e4b4f8..eb0110acd19b 100644 --- a/arch/frv/include/asm/pgtable.h +++ b/arch/frv/include/asm/pgtable.h @@ -488,9 +488,6 @@ static inline int pte_file(pte_t pte) #define PageSkip(page) (0) #define kern_addr_valid(addr) (1) -#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ - remap_pfn_range(vma, vaddr, pfn, size, prot) - #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_SET_WRPROTECT diff --git a/arch/frv/include/asm/uaccess.h b/arch/frv/include/asm/uaccess.h index 0b67ec5b4414..3ac9a59d65d4 100644 --- a/arch/frv/include/asm/uaccess.h +++ b/arch/frv/include/asm/uaccess.h @@ -280,14 +280,14 @@ extern long __memcpy_user(void *dst, const void *src, unsigned long count); static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n) { - might_sleep(); + might_fault(); return __copy_to_user_inatomic(to, from, n); } static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n) { - might_sleep(); + might_fault(); return __copy_from_user_inatomic(to, from, n); } diff --git a/arch/frv/kernel/head.S b/arch/frv/kernel/head.S index e9a8cc63ac94..a7d0bea9c036 100644 --- a/arch/frv/kernel/head.S +++ b/arch/frv/kernel/head.S @@ -479,11 +479,6 @@ __head_mmu_enabled: LEDS 0x000c - # initialise the processor and the peripherals - #call SYMBOL_NAME(processor_init) - #call SYMBOL_NAME(unit_init) - #LEDS 0x0aff - sethi.p #0xe5e5,gr3 setlo #0xe5e5,gr3 or.p gr3,gr0,gr4 diff --git a/arch/frv/kernel/setup.c b/arch/frv/kernel/setup.c index a5136474c6fd..ae3a6706419b 100644 --- a/arch/frv/kernel/setup.c +++ b/arch/frv/kernel/setup.c @@ -735,7 +735,7 @@ static void __init parse_cmdline_early(char *cmdline) /* "mem=XXX[kKmM]" sets SDRAM size to <mem>, overriding the value we worked * out from the SDRAM controller mask register */ - if (!memcmp(cmdline, "mem=", 4)) { + if (!strncmp(cmdline, "mem=", 4)) { unsigned long long mem_size; mem_size = memparse(cmdline + 4, &cmdline); @@ -876,6 +876,7 @@ late_initcall(setup_arch_serial); static void __init setup_linux_memory(void) { unsigned long bootmap_size, low_top_pfn, kstart, kend, high_mem; + unsigned long physpages; kstart = (unsigned long) &__kernel_image_start - PAGE_OFFSET; kend = (unsigned long) &__kernel_image_end - PAGE_OFFSET; @@ -893,19 +894,19 @@ static void __init setup_linux_memory(void) ); /* pass the memory that the kernel can immediately use over to the bootmem allocator */ - max_mapnr = num_physpages = (memory_end - memory_start) >> PAGE_SHIFT; + max_mapnr = physpages = (memory_end - memory_start) >> PAGE_SHIFT; low_top_pfn = (KERNEL_LOWMEM_END - KERNEL_LOWMEM_START) >> PAGE_SHIFT; high_mem = 0; - if (num_physpages > low_top_pfn) { + if (physpages > low_top_pfn) { #ifdef CONFIG_HIGHMEM - high_mem = num_physpages - low_top_pfn; + high_mem = physpages - low_top_pfn; #else - max_mapnr = num_physpages = low_top_pfn; + max_mapnr = physpages = low_top_pfn; #endif } else { - low_top_pfn = num_physpages; + low_top_pfn = physpages; } min_low_pfn = memory_start >> PAGE_SHIFT; @@ -979,7 +980,7 @@ static void __init setup_uclinux_memory(void) free_bootmem(memory_start, memory_end - memory_start); high_memory = (void *) (memory_end & PAGE_MASK); - max_mapnr = num_physpages = ((unsigned long) high_memory - PAGE_OFFSET) >> PAGE_SHIFT; + max_mapnr = ((unsigned long) high_memory - PAGE_OFFSET) >> PAGE_SHIFT; min_low_pfn = memory_start >> PAGE_SHIFT; max_low_pfn = memory_end >> PAGE_SHIFT; diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c index 4bff48c19d29..a6d105d61b26 100644 --- a/arch/frv/kernel/traps.c +++ b/arch/frv/kernel/traps.c @@ -523,7 +523,7 @@ void die_if_kernel(const char *str, ...) return; va_start(va, str); - vsprintf(buffer, str, va); + vsnprintf(buffer, sizeof(buffer), str, va); va_end(va); console_verbose(); diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c index dee354fa6b64..88a159743528 100644 --- a/arch/frv/mm/init.c +++ b/arch/frv/mm/init.c @@ -78,7 +78,7 @@ void __init paging_init(void) memset((void *) empty_zero_page, 0, PAGE_SIZE); #ifdef CONFIG_HIGHMEM - if (num_physpages - num_mappedpages) { + if (get_num_physpages() - num_mappedpages) { pgd_t *pge; pud_t *pue; pmd_t *pme; @@ -96,7 +96,7 @@ void __init paging_init(void) */ zones_size[ZONE_NORMAL] = max_low_pfn - min_low_pfn; #ifdef CONFIG_HIGHMEM - zones_size[ZONE_HIGHMEM] = num_physpages - num_mappedpages; + zones_size[ZONE_HIGHMEM] = get_num_physpages() - num_mappedpages; #endif free_area_init(zones_size); @@ -114,45 +114,24 @@ void __init paging_init(void) */ void __init mem_init(void) { - unsigned long npages = (memory_end - memory_start) >> PAGE_SHIFT; - unsigned long tmp; -#ifdef CONFIG_MMU - unsigned long loop, pfn; - int datapages = 0; -#endif - int codek = 0, datak = 0; + unsigned long code_size = _etext - _stext; /* this will put all low memory onto the freelists */ - totalram_pages = free_all_bootmem(); - -#ifdef CONFIG_MMU - for (loop = 0 ; loop < npages ; loop++) - if (PageReserved(&mem_map[loop])) - datapages++; - -#ifdef CONFIG_HIGHMEM - for (pfn = num_physpages - 1; pfn >= num_mappedpages; pfn--) - free_highmem_page(&mem_map[pfn]); -#endif - - codek = ((unsigned long) &_etext - (unsigned long) &_stext) >> 10; - datak = datapages << (PAGE_SHIFT - 10); - -#else - codek = (_etext - _stext) >> 10; - datak = 0; //(__bss_stop - _sdata) >> 10; + free_all_bootmem(); +#if defined(CONFIG_MMU) && defined(CONFIG_HIGHMEM) + { + unsigned long pfn; + + for (pfn = get_num_physpages() - 1; + pfn >= num_mappedpages; pfn--) + free_highmem_page(&mem_map[pfn]); + } #endif - tmp = nr_free_pages() << PAGE_SHIFT; - printk("Memory available: %luKiB/%luKiB RAM, %luKiB/%luKiB ROM (%dKiB kernel code, %dKiB data)\n", - tmp >> 10, - npages << (PAGE_SHIFT - 10), - (rom_length > 0) ? ((rom_length >> 10) - codek) : 0, - rom_length >> 10, - codek, - datak - ); - + mem_init_print_info(NULL); + if (rom_length > 0 && rom_length >= code_size) + printk("Memory available: %luKiB/%luKiB ROM\n", + (rom_length - code_size) >> 10, rom_length >> 10); } /* end mem_init() */ /*****************************************************************************/ @@ -162,7 +141,7 @@ void __init mem_init(void) void free_initmem(void) { #if defined(CONFIG_RAMKERNEL) && !defined(CONFIG_PROTECT_KERNEL) - free_initmem_default(0); + free_initmem_default(-1); #endif } /* end free_initmem() */ @@ -173,6 +152,6 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_area(start, end, 0, "initrd"); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } /* end free_initrd_mem() */ #endif |
