diff options
Diffstat (limited to 'arch/sh/kernel/cpu/sh5')
| -rw-r--r-- | arch/sh/kernel/cpu/sh5/clock-sh5.c | 8 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh5/entry.S | 6 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh5/fpu.c | 65 |
3 files changed, 13 insertions, 66 deletions
diff --git a/arch/sh/kernel/cpu/sh5/clock-sh5.c b/arch/sh/kernel/cpu/sh5/clock-sh5.c index 7f864ebc51d..9cfc19b8dbe 100644 --- a/arch/sh/kernel/cpu/sh5/clock-sh5.c +++ b/arch/sh/kernel/cpu/sh5/clock-sh5.c @@ -24,7 +24,7 @@ static unsigned long cprc_base; static void master_clk_init(struct clk *clk) { - int idx = (ctrl_inl(cprc_base + 0x00) >> 6) & 0x0007; + int idx = (__raw_readl(cprc_base + 0x00) >> 6) & 0x0007; clk->rate *= ifc_table[idx]; } @@ -34,7 +34,7 @@ static struct clk_ops sh5_master_clk_ops = { static unsigned long module_clk_recalc(struct clk *clk) { - int idx = (ctrl_inw(cprc_base) >> 12) & 0x0007; + int idx = (__raw_readw(cprc_base) >> 12) & 0x0007; return clk->parent->rate / ifc_table[idx]; } @@ -44,7 +44,7 @@ static struct clk_ops sh5_module_clk_ops = { static unsigned long bus_clk_recalc(struct clk *clk) { - int idx = (ctrl_inw(cprc_base) >> 3) & 0x0007; + int idx = (__raw_readw(cprc_base) >> 3) & 0x0007; return clk->parent->rate / ifc_table[idx]; } @@ -54,7 +54,7 @@ static struct clk_ops sh5_bus_clk_ops = { static unsigned long cpu_clk_recalc(struct clk *clk) { - int idx = (ctrl_inw(cprc_base) & 0x0007); + int idx = (__raw_readw(cprc_base) & 0x0007); return clk->parent->rate / ifc_table[idx]; } diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S index 8f13f73cb2c..6b80295dd7a 100644 --- a/arch/sh/kernel/cpu/sh5/entry.S +++ b/arch/sh/kernel/cpu/sh5/entry.S @@ -187,7 +187,7 @@ trap_jtable: .rept 6 .long do_exception_error /* 0x880 - 0x920 */ .endr - .long do_software_break_point /* 0x940 */ + .long breakpoint_trap_handler /* 0x940 */ .long do_exception_error /* 0x960 */ .long do_single_step /* 0x980 */ @@ -1124,7 +1124,7 @@ fpu_error_or_IRQA: pta its_IRQ, tr0 beqi/l r4, EVENT_INTERRUPT, tr0 #ifdef CONFIG_SH_FPU - movi do_fpu_state_restore, r6 + movi fpu_state_restore_trap_handler, r6 #else movi do_exception_error, r6 #endif @@ -1135,7 +1135,7 @@ fpu_error_or_IRQB: pta its_IRQ, tr0 beqi/l r4, EVENT_INTERRUPT, tr0 #ifdef CONFIG_SH_FPU - movi do_fpu_state_restore, r6 + movi fpu_state_restore_trap_handler, r6 #else movi do_exception_error, r6 #endif diff --git a/arch/sh/kernel/cpu/sh5/fpu.c b/arch/sh/kernel/cpu/sh5/fpu.c index 4648ccee6c4..4b3bb35e99f 100644 --- a/arch/sh/kernel/cpu/sh5/fpu.c +++ b/arch/sh/kernel/cpu/sh5/fpu.c @@ -15,24 +15,6 @@ #include <linux/sched.h> #include <linux/signal.h> #include <asm/processor.h> -#include <asm/user.h> -#include <asm/io.h> -#include <asm/fpu.h> - -/* - * Initially load the FPU with signalling NANS. This bit pattern - * has the property that no matter whether considered as single or as - * double precision, it still represents a signalling NAN. - */ -#define sNAN64 0xFFFFFFFFFFFFFFFFULL -#define sNAN32 0xFFFFFFFFUL - -static union sh_fpu_union init_fpuregs = { - .hard = { - .fp_regs = { [0 ... 63] = sNAN32 }, - .fpscr = FPSCR_INIT - } -}; void save_fpu(struct task_struct *tsk) { @@ -72,12 +54,11 @@ void save_fpu(struct task_struct *tsk) "fgetscr fr63\n\t" "fst.s %0, (32*8), fr63\n\t" : /* no output */ - : "r" (&tsk->thread.fpu.hard) + : "r" (&tsk->thread.xstate->hardfpu) : "memory"); } -static inline void -fpload(struct sh_fpu_hard_struct *fpregs) +void restore_fpu(struct task_struct *tsk) { asm volatile("fld.p %0, (0*8), fp0\n\t" "fld.p %0, (1*8), fp2\n\t" @@ -116,16 +97,11 @@ fpload(struct sh_fpu_hard_struct *fpregs) "fld.p %0, (31*8), fp62\n\t" : /* no output */ - : "r" (fpregs) ); -} - -void fpinit(struct sh_fpu_hard_struct *fpregs) -{ - *fpregs = init_fpuregs.hard; + : "r" (&tsk->thread.xstate->hardfpu) + : "memory"); } -asmlinkage void -do_fpu_error(unsigned long ex, struct pt_regs *regs) +asmlinkage void do_fpu_error(unsigned long ex, struct pt_regs *regs) { struct task_struct *tsk = current; @@ -133,35 +109,6 @@ do_fpu_error(unsigned long ex, struct pt_regs *regs) tsk->thread.trap_no = 11; tsk->thread.error_code = 0; - force_sig(SIGFPE, tsk); -} - - -asmlinkage void -do_fpu_state_restore(unsigned long ex, struct pt_regs *regs) -{ - void die(const char *str, struct pt_regs *regs, long err); - - if (! user_mode(regs)) - die("FPU used in kernel", regs, ex); - regs->sr &= ~SR_FD; - - if (last_task_used_math == current) - return; - - enable_fpu(); - if (last_task_used_math != NULL) - /* Other processes fpu state, save away */ - save_fpu(last_task_used_math); - - last_task_used_math = current; - if (used_math()) { - fpload(¤t->thread.fpu.hard); - } else { - /* First time FPU user. */ - fpload(&init_fpuregs.hard); - set_used_math(); - } - disable_fpu(); + force_sig(SIGFPE, tsk); } |