diff options
Diffstat (limited to 'arch/mips/include/asm/processor.h')
| -rw-r--r-- | arch/mips/include/asm/processor.h | 63 |
1 files changed, 16 insertions, 47 deletions
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h index 7619ad319400..ca7662cc65a7 100644 --- a/arch/mips/include/asm/processor.h +++ b/arch/mips/include/asm/processor.h @@ -22,24 +22,21 @@ #include <asm/dsemul.h> #include <asm/mipsregs.h> #include <asm/prefetch.h> +#include <asm/vdso/processor.h> /* * System setup and hardware flags.. */ extern unsigned int vced_count, vcei_count; +extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); #ifdef CONFIG_32BIT -#ifdef CONFIG_KVM_GUEST -/* User space process size is limited to 1GB in KVM Guest Mode */ -#define TASK_SIZE 0x3fff8000UL -#else /* * User space process size: 2GB. This is hardcoded into a few places, * so don't change it unless you know what you are doing. */ #define TASK_SIZE 0x80000000UL -#endif #define STACK_TOP_MAX TASK_SIZE @@ -205,29 +202,17 @@ struct octeon_cop2_state { #define COP2_INIT \ .cp2 = {0,}, +#if defined(CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE) && \ + CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE > 0 struct octeon_cvmseg_state { unsigned long cvmseg[CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE] [cpu_dcache_line_size() / sizeof(unsigned long)]; }; - -#elif defined(CONFIG_CPU_XLP) -struct nlm_cop2_state { - u64 rx[4]; - u64 tx[4]; - u32 tx_msg_status; - u32 rx_msg_status; -}; - -#define COP2_INIT \ - .cp2 = {{0}, {0}, 0, 0}, +#endif #else #define COP2_INIT #endif -typedef struct { - unsigned long seg; -} mm_segment_t; - #ifdef CONFIG_CPU_HAS_MSA # define ARCH_MIN_TASKALIGN 16 # define FPU_ALIGN __aligned(16) @@ -253,13 +238,13 @@ struct thread_struct { #ifdef CONFIG_MIPS_FP_SUPPORT /* Saved fpu/fpu emulator stuff. */ struct mips_fpu_struct fpu FPU_ALIGN; -#endif /* Assigned branch delay slot 'emulation' frame */ atomic_t bd_emu_frame; /* PC of the branch from a branch delay slot 'emulation' */ unsigned long bd_emu_branch_pc; /* PC to continue from following a branch delay slot 'emulation' */ unsigned long bd_emu_cont_pc; +#endif #ifdef CONFIG_MIPS_MT_FPAFF /* Emulated instruction count */ unsigned long emulated_fp; @@ -280,10 +265,10 @@ struct thread_struct { unsigned long trap_nr; #ifdef CONFIG_CPU_CAVIUM_OCTEON struct octeon_cop2_state cp2 __attribute__ ((__aligned__(128))); +#if defined(CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE) && \ + CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE > 0 struct octeon_cvmseg_state cvmseg __attribute__ ((__aligned__(128))); #endif -#ifdef CONFIG_CPU_XLP - struct nlm_cop2_state cp2; #endif struct mips_abi *abi; }; @@ -302,7 +287,11 @@ struct thread_struct { .fpr = {{{0,},},}, \ .fcr31 = 0, \ .msacsr = 0, \ - }, + }, \ + /* Delay slot emulation */ \ + .bd_emu_frame = ATOMIC_INIT(BD_EMUFRAME_NONE), \ + .bd_emu_branch_pc = 0, \ + .bd_emu_cont_pc = 0, #else # define FPU_INIT #endif @@ -334,10 +323,6 @@ struct thread_struct { * FPU affinity state (null if not FPAFF) \ */ \ FPAFF_INIT \ - /* Delay slot emulation */ \ - .bd_emu_frame = ATOMIC_INIT(BD_EMUFRAME_NONE), \ - .bd_emu_branch_pc = 0, \ - .bd_emu_cont_pc = 0, \ /* \ * Saved DSP stuff \ */ \ @@ -364,9 +349,6 @@ struct thread_struct { struct task_struct; -/* Free all resources held by a thread. */ -#define release_thread(thread) do { } while(0) - /* * Do necessary setup to start up a newly executed thread. */ @@ -376,7 +358,7 @@ static inline void flush_thread(void) { } -unsigned long get_wchan(struct task_struct *p); +unsigned long __get_wchan(struct task_struct *p); #define __KSTK_TOS(tsk) ((unsigned long)task_stack_page(tsk) + \ THREAD_SIZE - 32 - sizeof(struct pt_regs)) @@ -385,21 +367,6 @@ unsigned long get_wchan(struct task_struct *p); #define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[29]) #define KSTK_STATUS(tsk) (task_pt_regs(tsk)->cp0_status) -#ifdef CONFIG_CPU_LOONGSON64 -/* - * Loongson-3's SFB (Store-Fill-Buffer) may buffer writes indefinitely when a - * tight read loop is executed, because reads take priority over writes & the - * hardware (incorrectly) doesn't ensure that writes will eventually occur. - * - * Since spin loops of any kind should have a cpu_relax() in them, force an SFB - * flush from cpu_relax() such that any pending writes will become visible as - * expected. - */ -#define cpu_relax() smp_mb() -#else -#define cpu_relax() barrier() -#endif - /* * Return_address is a replacement for __builtin_return_address(count) * which on certain architectures cannot reasonably be implemented in GCC @@ -435,4 +402,6 @@ extern int mips_set_process_fp_mode(struct task_struct *task, #define GET_FP_MODE(task) mips_get_process_fp_mode(task) #define SET_FP_MODE(task,value) mips_set_process_fp_mode(task, value) +void show_registers(struct pt_regs *regs); + #endif /* _ASM_PROCESSOR_H */ |