diff options
Diffstat (limited to 'arch/m68k')
| -rw-r--r-- | arch/m68k/ifpsp060/src/fpsp.S | 28 | ||||
| -rw-r--r-- | arch/m68k/ifpsp060/src/pfpsp.S | 26 | ||||
| -rw-r--r-- | arch/m68k/include/asm/asm-offsets.h | 1 | ||||
| -rw-r--r-- | arch/m68k/include/asm/bootinfo.h | 2 | ||||
| -rw-r--r-- | arch/m68k/include/asm/elf.h | 1 | ||||
| -rw-r--r-- | arch/m68k/include/asm/io_no.h | 14 | ||||
| -rw-r--r-- | arch/m68k/include/asm/page_no.h | 4 | ||||
| -rw-r--r-- | arch/m68k/include/asm/pgtable_mm.h | 4 | ||||
| -rw-r--r-- | arch/m68k/include/asm/processor.h | 2 | ||||
| -rw-r--r-- | arch/m68k/include/asm/ptrace.h | 2 | ||||
| -rw-r--r-- | arch/m68k/include/asm/thread_info_no.h | 4 | ||||
| -rw-r--r-- | arch/m68k/include/asm/virtconvert.h | 4 | ||||
| -rw-r--r-- | arch/m68k/kernel/head.S | 2 | ||||
| -rw-r--r-- | arch/m68k/kernel/sys_m68k.c | 83 | ||||
| -rw-r--r-- | arch/m68k/sun3/mmu_emu.c | 8 |
15 files changed, 56 insertions, 129 deletions
diff --git a/arch/m68k/ifpsp060/src/fpsp.S b/arch/m68k/ifpsp060/src/fpsp.S index 6c1a9a217887..73613b5f1ee5 100644 --- a/arch/m68k/ifpsp060/src/fpsp.S +++ b/arch/m68k/ifpsp060/src/fpsp.S @@ -753,7 +753,7 @@ fovfl_ovfl_on: bra.l _real_ovfl -# overflow occurred but is disabled. meanwhile, inexact is enabled. therefore, +# overflow occurred but is disabled. meanwhile, inexact is enabled. Therefore, # we must jump to real_inex(). fovfl_inex_on: @@ -1015,7 +1015,7 @@ funfl_unfl_on2: bra.l _real_unfl -# undeflow occurred but is disabled. meanwhile, inexact is enabled. therefore, +# underflow occurred but is disabled. meanwhile, inexact is enabled. Therefore, # we must jump to real_inex(). funfl_inex_on: @@ -2963,7 +2963,7 @@ iea_disabled: tst.w %d0 # is instr fmovm? bmi.b iea_dis_fmovm # yes -# instruction is using an extended precision immediate operand. therefore, +# instruction is using an extended precision immediate operand. Therefore, # the total instruction length is 16 bytes. iea_dis_immed: mov.l &0x10,%d0 # 16 bytes of instruction @@ -9624,7 +9624,7 @@ sok_dnrm: bge.b sok_norm2 # thank goodness no # the multiply factor that we're trying to create should be a denorm -# for the multiply to work. therefore, we're going to actually do a +# for the multiply to work. Therefore, we're going to actually do a # multiply with a denorm which will cause an unimplemented data type # exception to be put into the machine which will be caught and corrected # later. we don't do this with the DENORMs above because this method @@ -12216,7 +12216,7 @@ fin_sd_unfl_dis: # # operand will underflow AND underflow or inexact is enabled. -# therefore, we must return the result rounded to extended precision. +# Therefore, we must return the result rounded to extended precision. # fin_sd_unfl_ena: mov.l FP_SCR0_HI(%a6),FP_SCR1_HI(%a6) @@ -12746,7 +12746,7 @@ fdiv_zero_load_p: # # The destination was In Range and the source was a ZERO. The result, -# therefore, is an INF w/ the proper sign. +# Therefore, is an INF w/ the proper sign. # So, determine the sign and return a new INF (w/ the j-bit cleared). # global fdiv_inf_load # global for fsgldiv @@ -12996,7 +12996,7 @@ fneg_sd_unfl_dis: # # operand will underflow AND underflow is enabled. -# therefore, we must return the result rounded to extended precision. +# Therefore, we must return the result rounded to extended precision. # fneg_sd_unfl_ena: mov.l FP_SCR0_HI(%a6),FP_SCR1_HI(%a6) @@ -13611,7 +13611,7 @@ fabs_sd_unfl_dis: # # operand will underflow AND underflow is enabled. -# therefore, we must return the result rounded to extended precision. +# Therefore, we must return the result rounded to extended precision. # fabs_sd_unfl_ena: mov.l FP_SCR0_HI(%a6),FP_SCR1_HI(%a6) @@ -14973,7 +14973,7 @@ fadd_zero_2: # # the ZEROes have opposite signs: -# - therefore, we return +ZERO if the rounding modes are RN,RZ, or RP. +# - Therefore, we return +ZERO if the rounding modes are RN,RZ, or RP. # - -ZERO is returned in the case of RM. # fadd_zero_2_chk_rm: @@ -15425,7 +15425,7 @@ fsub_zero_2: # # the ZEROes have the same signs: -# - therefore, we return +ZERO if the rounding mode is RN,RZ, or RP +# - Therefore, we return +ZERO if the rounding mode is RN,RZ, or RP # - -ZERO is returned in the case of RM. # fsub_zero_2_chk_rm: @@ -15693,7 +15693,7 @@ fsqrt_sd_unfl_dis: # # operand will underflow AND underflow is enabled. -# therefore, we must return the result rounded to extended precision. +# Therefore, we must return the result rounded to extended precision. # fsqrt_sd_unfl_ena: mov.l FP_SCR0_HI(%a6),FP_SCR1_HI(%a6) @@ -21000,7 +21000,7 @@ fout_pack_type: tst.l %d0 bne.b fout_pack_set # "mantissa" is all zero which means that the answer is zero. but, the '040 -# algorithm allows the exponent to be non-zero. the 881/2 do not. therefore, +# algorithm allows the exponent to be non-zero. the 881/2 do not. Therefore, # if the mantissa is zero, I will zero the exponent, too. # the question now is whether the exponents sign bit is allowed to be non-zero # for a zero, also... @@ -21743,7 +21743,7 @@ denorm_set_stky: rts # # -# dnrm_lp(): normalize exponent/mantissa to specified threshhold # +# dnrm_lp(): normalize exponent/mantissa to specified threshold # # # # INPUT: # # %a0 : points to the operand to be denormalized # @@ -22402,7 +22402,7 @@ unnorm_shift: bgt.b unnorm_nrm_zero # yes; denorm only until exp = 0 # -# exponent would not go < 0. therefore, number stays normalized +# exponent would not go < 0. Therefore, number stays normalized # sub.w %d0, %d1 # shift exponent value mov.w FTEMP_EX(%a0), %d0 # load old exponent diff --git a/arch/m68k/ifpsp060/src/pfpsp.S b/arch/m68k/ifpsp060/src/pfpsp.S index 51b9f7d879dd..e71ba0ab013c 100644 --- a/arch/m68k/ifpsp060/src/pfpsp.S +++ b/arch/m68k/ifpsp060/src/pfpsp.S @@ -752,7 +752,7 @@ fovfl_ovfl_on: bra.l _real_ovfl -# overflow occurred but is disabled. meanwhile, inexact is enabled. therefore, +# overflow occurred but is disabled. meanwhile, inexact is enabled. Therefore, # we must jump to real_inex(). fovfl_inex_on: @@ -1014,7 +1014,7 @@ funfl_unfl_on2: bra.l _real_unfl -# undeflow occurred but is disabled. meanwhile, inexact is enabled. therefore, +# underflow occurred but is disabled. meanwhile, inexact is enabled. Therefore, # we must jump to real_inex(). funfl_inex_on: @@ -2962,7 +2962,7 @@ iea_disabled: tst.w %d0 # is instr fmovm? bmi.b iea_dis_fmovm # yes -# instruction is using an extended precision immediate operand. therefore, +# instruction is using an extended precision immediate operand. Therefore, # the total instruction length is 16 bytes. iea_dis_immed: mov.l &0x10,%d0 # 16 bytes of instruction @@ -5865,7 +5865,7 @@ denorm_set_stky: rts # # -# dnrm_lp(): normalize exponent/mantissa to specified threshhold # +# dnrm_lp(): normalize exponent/mantissa to specified threshold # # # # INPUT: # # %a0 : points to the operand to be denormalized # @@ -6524,7 +6524,7 @@ unnorm_shift: bgt.b unnorm_nrm_zero # yes; denorm only until exp = 0 # -# exponent would not go < 0. therefore, number stays normalized +# exponent would not go < 0. Therefore, number stays normalized # sub.w %d0, %d1 # shift exponent value mov.w FTEMP_EX(%a0), %d0 # load old exponent @@ -7901,7 +7901,7 @@ fout_pack_type: tst.l %d0 bne.b fout_pack_set # "mantissa" is all zero which means that the answer is zero. but, the '040 -# algorithm allows the exponent to be non-zero. the 881/2 do not. therefore, +# algorithm allows the exponent to be non-zero. the 881/2 do not. Therefore, # if the mantissa is zero, I will zero the exponent, too. # the question now is whether the exponents sign bit is allowed to be non-zero # for a zero, also... @@ -8647,7 +8647,7 @@ fin_sd_unfl_dis: # # operand will underflow AND underflow or inexact is enabled. -# therefore, we must return the result rounded to extended precision. +# Therefore, we must return the result rounded to extended precision. # fin_sd_unfl_ena: mov.l FP_SCR0_HI(%a6),FP_SCR1_HI(%a6) @@ -9177,7 +9177,7 @@ fdiv_zero_load_p: # # The destination was In Range and the source was a ZERO. The result, -# therefore, is an INF w/ the proper sign. +# Therefore, is an INF w/ the proper sign. # So, determine the sign and return a new INF (w/ the j-bit cleared). # global fdiv_inf_load # global for fsgldiv @@ -9427,7 +9427,7 @@ fneg_sd_unfl_dis: # # operand will underflow AND underflow is enabled. -# therefore, we must return the result rounded to extended precision. +# Therefore, we must return the result rounded to extended precision. # fneg_sd_unfl_ena: mov.l FP_SCR0_HI(%a6),FP_SCR1_HI(%a6) @@ -10042,7 +10042,7 @@ fabs_sd_unfl_dis: # # operand will underflow AND underflow is enabled. -# therefore, we must return the result rounded to extended precision. +# Therefore, we must return the result rounded to extended precision. # fabs_sd_unfl_ena: mov.l FP_SCR0_HI(%a6),FP_SCR1_HI(%a6) @@ -11404,7 +11404,7 @@ fadd_zero_2: # # the ZEROes have opposite signs: -# - therefore, we return +ZERO if the rounding modes are RN,RZ, or RP. +# - Therefore, we return +ZERO if the rounding modes are RN,RZ, or RP. # - -ZERO is returned in the case of RM. # fadd_zero_2_chk_rm: @@ -11856,7 +11856,7 @@ fsub_zero_2: # # the ZEROes have the same signs: -# - therefore, we return +ZERO if the rounding mode is RN,RZ, or RP +# - Therefore, we return +ZERO if the rounding mode is RN,RZ, or RP # - -ZERO is returned in the case of RM. # fsub_zero_2_chk_rm: @@ -12124,7 +12124,7 @@ fsqrt_sd_unfl_dis: # # operand will underflow AND underflow is enabled. -# therefore, we must return the result rounded to extended precision. +# Therefore, we must return the result rounded to extended precision. # fsqrt_sd_unfl_ena: mov.l FP_SCR0_HI(%a6),FP_SCR1_HI(%a6) diff --git a/arch/m68k/include/asm/asm-offsets.h b/arch/m68k/include/asm/asm-offsets.h new file mode 100644 index 000000000000..d370ee36a182 --- /dev/null +++ b/arch/m68k/include/asm/asm-offsets.h @@ -0,0 +1 @@ +#include <generated/asm-offsets.h> diff --git a/arch/m68k/include/asm/bootinfo.h b/arch/m68k/include/asm/bootinfo.h index fb8a06b9ab6a..67e7a78ad96b 100644 --- a/arch/m68k/include/asm/bootinfo.h +++ b/arch/m68k/include/asm/bootinfo.h @@ -145,7 +145,7 @@ struct bi_record { /* * Macintosh hardware profile data - unused, see macintosh.h for - * resonable type values + * reasonable type values */ #define BI_MAC_VIA1BASE 0x8010 /* Mac VIA1 base address (always present) */ diff --git a/arch/m68k/include/asm/elf.h b/arch/m68k/include/asm/elf.h index 0b0f49eb876b..01c193d91412 100644 --- a/arch/m68k/include/asm/elf.h +++ b/arch/m68k/include/asm/elf.h @@ -59,7 +59,6 @@ typedef struct user_m68kfp_struct elf_fpregset_t; is actually used on ASV. */ #define ELF_PLAT_INIT(_r, load_addr) _r->a1 = 0 -#define USE_ELF_CORE_DUMP #ifndef CONFIG_SUN3 #define ELF_EXEC_PAGESIZE 4096 #else diff --git a/arch/m68k/include/asm/io_no.h b/arch/m68k/include/asm/io_no.h index 7f57436ec18f..359065d5a9f2 100644 --- a/arch/m68k/include/asm/io_no.h +++ b/arch/m68k/include/asm/io_no.h @@ -3,6 +3,7 @@ #ifdef __KERNEL__ +#include <asm/virtconvert.h> /* * These are for ISA/PCI shared memory _only_ and should never be used @@ -165,19 +166,6 @@ static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size extern void iounmap(void *addr); -/* Pages to physical address... */ -#define page_to_phys(page) ((page - mem_map) << PAGE_SHIFT) -#define page_to_bus(page) ((page - mem_map) << PAGE_SHIFT) - -/* - * Macros used for converting between virtual and physical mappings. - */ -#define phys_to_virt(vaddr) ((void *) (vaddr)) -#define virt_to_phys(vaddr) ((unsigned long) (vaddr)) - -#define virt_to_bus virt_to_phys -#define bus_to_virt phys_to_virt - /* * Convert a physical pointer to a virtual kernel pointer for /dev/mem * access diff --git a/arch/m68k/include/asm/page_no.h b/arch/m68k/include/asm/page_no.h index 1f31b060cc8d..8029a33e03c3 100644 --- a/arch/m68k/include/asm/page_no.h +++ b/arch/m68k/include/asm/page_no.h @@ -56,8 +56,8 @@ extern unsigned long memory_end; #ifndef __ASSEMBLY__ -#define __pa(vaddr) virt_to_phys((void *)(vaddr)) -#define __va(paddr) phys_to_virt((unsigned long)(paddr)) +#define __pa(vaddr) ((unsigned long)(vaddr)) +#define __va(paddr) ((void *)(paddr)) #define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) #define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h index fe60e1abaee8..aca0e28581c7 100644 --- a/arch/m68k/include/asm/pgtable_mm.h +++ b/arch/m68k/include/asm/pgtable_mm.h @@ -83,9 +83,9 @@ #define VMALLOC_START (((unsigned long) high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)) #define VMALLOC_END KMAP_START #else -extern unsigned long vmalloc_end; +extern unsigned long m68k_vmalloc_end; #define VMALLOC_START 0x0f800000 -#define VMALLOC_END vmalloc_end +#define VMALLOC_END m68k_vmalloc_end #endif /* CONFIG_SUN3 */ /* zero page used for uninitialized stuff */ diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h index 74fd674b15ad..cbd3d4751dd2 100644 --- a/arch/m68k/include/asm/processor.h +++ b/arch/m68k/include/asm/processor.h @@ -165,6 +165,8 @@ unsigned long get_wchan(struct task_struct *p); eip; }) #define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->thread.usp) +#define task_pt_regs(tsk) ((struct pt_regs *) ((tsk)->thread.esp0)) + #define cpu_relax() barrier() #endif diff --git a/arch/m68k/include/asm/ptrace.h b/arch/m68k/include/asm/ptrace.h index a6ab663bcc2e..ee4011c23281 100644 --- a/arch/m68k/include/asm/ptrace.h +++ b/arch/m68k/include/asm/ptrace.h @@ -86,7 +86,7 @@ struct switch_stack { extern void show_regs(struct pt_regs *); /* - * These are defined as per linux/ptrace.h, which see. + * These are defined as per linux/ptrace.h. */ struct task_struct; diff --git a/arch/m68k/include/asm/thread_info_no.h b/arch/m68k/include/asm/thread_info_no.h index c2bde5e24b0b..a6512bfdd01d 100644 --- a/arch/m68k/include/asm/thread_info_no.h +++ b/arch/m68k/include/asm/thread_info_no.h @@ -12,8 +12,6 @@ #ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - /* * Size of kernel stack for each process. This must be a power of 2... */ @@ -28,6 +26,8 @@ */ #define THREAD_SIZE (PAGE_SIZE<<THREAD_SIZE_ORDER) +#ifndef __ASSEMBLY__ + /* * low level task data. */ diff --git a/arch/m68k/include/asm/virtconvert.h b/arch/m68k/include/asm/virtconvert.h index 22ab05c9c52b..3f834b3ab5bd 100644 --- a/arch/m68k/include/asm/virtconvert.h +++ b/arch/m68k/include/asm/virtconvert.h @@ -26,6 +26,7 @@ static inline void *phys_to_virt(unsigned long address) } /* Permanent address of a page. */ +#ifdef CONFIG_MMU #ifdef CONFIG_SINGLE_MEMORY_CHUNK #define page_to_phys(page) \ __pa(PAGE_OFFSET + (((page) - pg_data_map[0].node_mem_map) << PAGE_SHIFT)) @@ -37,6 +38,9 @@ static inline void *phys_to_virt(unsigned long address) page_to_pfn(__page) << PAGE_SHIFT; \ }) #endif +#else +#define page_to_phys(page) (((page) - mem_map) << PAGE_SHIFT) +#endif /* * IO bus memory addresses are 1:1 with the physical address, diff --git a/arch/m68k/kernel/head.S b/arch/m68k/kernel/head.S index 86edb5fbcfc3..ef54128baa0b 100644 --- a/arch/m68k/kernel/head.S +++ b/arch/m68k/kernel/head.S @@ -196,7 +196,7 @@ * for them and trying to understand what they mean. * * CONFIG_xxx: These are the obvious machine configuration defines created - * during configuration. These are defined in include/linux/autoconf.h. + * during configuration. These are defined in autoconf.h. * * CONSOLE: There is support for head.S console in this file. This * console can talk to a Mac frame buffer, but could easily be extrapolated diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c index 7deb402bfc75..218f441de667 100644 --- a/arch/m68k/kernel/sys_m68k.c +++ b/arch/m68k/kernel/sys_m68k.c @@ -29,37 +29,16 @@ #include <asm/page.h> #include <asm/unistd.h> -/* common code for old and new mmaps */ -static inline long do_mmap2( - unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - int error = -EBADF; - struct file * file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); -out: - return error; -} - asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) { - return do_mmap2(addr, len, prot, flags, fd, pgoff); + /* + * This is wrong for sun3 - there PAGE_SIZE is 8Kb, + * so we need to shift the argument down by 1; m68k mmap64(3) + * (in libc) expects the last argument of mmap2 in 4Kb units. + */ + return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff); } /* @@ -90,57 +69,11 @@ asmlinkage int old_mmap(struct mmap_arg_struct __user *arg) if (a.offset & ~PAGE_MASK) goto out; - a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); -out: - return error; -} - -#if 0 -struct mmap_arg_struct64 { - __u32 addr; - __u32 len; - __u32 prot; - __u32 flags; - __u64 offset; /* 64 bits */ - __u32 fd; -}; - -asmlinkage long sys_mmap64(struct mmap_arg_struct64 *arg) -{ - int error = -EFAULT; - struct file * file = NULL; - struct mmap_arg_struct64 a; - unsigned long pgoff; - - if (copy_from_user(&a, arg, sizeof(a))) - return -EFAULT; - - if ((long)a.offset & ~PAGE_MASK) - return -EINVAL; - - pgoff = a.offset >> PAGE_SHIFT; - if ((a.offset >> PAGE_SHIFT) != pgoff) - return -EINVAL; - - if (!(a.flags & MAP_ANONYMOUS)) { - error = -EBADF; - file = fget(a.fd); - if (!file) - goto out; - } - a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, a.addr, a.len, a.prot, a.flags, pgoff); - up_write(¤t->mm->mmap_sem); - if (file) - fput(file); + error = sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, + a.offset >> PAGE_SHIFT); out: return error; } -#endif struct sel_arg_struct { unsigned long n; diff --git a/arch/m68k/sun3/mmu_emu.c b/arch/m68k/sun3/mmu_emu.c index 3cd19390aae5..94f81ecfe3f8 100644 --- a/arch/m68k/sun3/mmu_emu.c +++ b/arch/m68k/sun3/mmu_emu.c @@ -45,8 +45,8 @@ ** Globals */ -unsigned long vmalloc_end; -EXPORT_SYMBOL(vmalloc_end); +unsigned long m68k_vmalloc_end; +EXPORT_SYMBOL(m68k_vmalloc_end); unsigned long pmeg_vaddr[PMEGS_NUM]; unsigned char pmeg_alloc[PMEGS_NUM]; @@ -172,8 +172,8 @@ void mmu_emu_init(unsigned long bootmem_end) #endif // the lowest mapping here is the end of our // vmalloc region - if(!vmalloc_end) - vmalloc_end = seg; + if (!m68k_vmalloc_end) + m68k_vmalloc_end = seg; // mark the segmap alloc'd, and reserve any // of the first 0xbff pages the hardware is |