diff options
Diffstat (limited to 'arch/mips/include/asm/processor.h')
| -rw-r--r-- | arch/mips/include/asm/processor.h | 49 |
1 files changed, 28 insertions, 21 deletions
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h index 5d33b727acf5..ead6928fa6b8 100644 --- a/arch/mips/include/asm/processor.h +++ b/arch/mips/include/asm/processor.h @@ -34,6 +34,11 @@ extern void (*cpu_wait)(void); extern unsigned int vced_count, vcei_count; /* + * MIPS does have an arch_pick_mmap_layout() + */ +#define HAVE_ARCH_PICK_MMAP_LAYOUT 1 + +/* * A special page (the vdso) is mapped into all processes at the very * top of the virtual memory space. */ @@ -45,13 +50,13 @@ extern unsigned int vced_count, vcei_count; * so don't change it unless you know what you are doing. */ #define TASK_SIZE 0x7fff8000UL -#define STACK_TOP ((TASK_SIZE & PAGE_MASK) - SPECIAL_PAGES_SIZE) -/* - * This decides where the kernel will search for a free chunk of vm - * space during mmap's. - */ -#define TASK_UNMAPPED_BASE ((TASK_SIZE / 3) & ~(PAGE_SIZE)) +#ifdef __KERNEL__ +#define STACK_TOP_MAX TASK_SIZE +#endif + +#define TASK_IS_32BIT_ADDR 1 + #endif #ifdef CONFIG_64BIT @@ -63,25 +68,29 @@ extern unsigned int vced_count, vcei_count; * 8192EB ... */ #define TASK_SIZE32 0x7fff8000UL -#define TASK_SIZE 0x10000000000UL -#define STACK_TOP \ - (((test_thread_flag(TIF_32BIT_ADDR) ? \ - TASK_SIZE32 : TASK_SIZE) & PAGE_MASK) - SPECIAL_PAGES_SIZE) +#define TASK_SIZE64 0x10000000000UL +#define TASK_SIZE (test_thread_flag(TIF_32BIT_ADDR) ? TASK_SIZE32 : TASK_SIZE64) + +#ifdef __KERNEL__ +#define STACK_TOP_MAX TASK_SIZE64 +#endif + + +#define TASK_SIZE_OF(tsk) \ + (test_tsk_thread_flag(tsk, TIF_32BIT_ADDR) ? TASK_SIZE32 : TASK_SIZE64) + +#define TASK_IS_32BIT_ADDR test_thread_flag(TIF_32BIT_ADDR) + +#endif + +#define STACK_TOP ((TASK_SIZE & PAGE_MASK) - SPECIAL_PAGES_SIZE) /* * This decides where the kernel will search for a free chunk of vm * space during mmap's. */ -#define TASK_UNMAPPED_BASE \ - (test_thread_flag(TIF_32BIT_ADDR) ? \ - PAGE_ALIGN(TASK_SIZE32 / 3) : PAGE_ALIGN(TASK_SIZE / 3)) -#define TASK_SIZE_OF(tsk) \ - (test_tsk_thread_flag(tsk, TIF_32BIT_ADDR) ? TASK_SIZE32 : TASK_SIZE) -#endif +#define TASK_UNMAPPED_BASE PAGE_ALIGN(TASK_SIZE / 3) -#ifdef __KERNEL__ -#define STACK_TOP_MAX TASK_SIZE -#endif #define NUM_FPU_REGS 32 @@ -218,7 +227,6 @@ struct thread_struct { unsigned long cp0_badvaddr; /* Last user fault */ unsigned long cp0_baduaddr; /* Last kernel fault accessing USEG */ unsigned long error_code; - unsigned long trap_no; unsigned long irix_trampoline; /* Wheee... */ unsigned long irix_oldctx; #ifdef CONFIG_CPU_CAVIUM_OCTEON @@ -290,7 +298,6 @@ struct thread_struct { .cp0_badvaddr = 0, \ .cp0_baduaddr = 0, \ .error_code = 0, \ - .trap_no = 0, \ .irix_trampoline = 0, \ .irix_oldctx = 0, \ /* \ |