diff options
Diffstat (limited to 'arch/microblaze')
| -rw-r--r-- | arch/microblaze/kernel/entry.S | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S index bf6b2b122485..397754cd31c9 100644 --- a/arch/microblaze/kernel/entry.S +++ b/arch/microblaze/kernel/entry.S @@ -49,138 +49,106 @@ #if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR .macro clear_bip msrclr r0, MSR_BIP - nop .endm .macro set_bip msrset r0, MSR_BIP - nop .endm .macro clear_eip msrclr r0, MSR_EIP - nop .endm .macro set_ee msrset r0, MSR_EE - nop .endm .macro disable_irq msrclr r0, MSR_IE - nop .endm .macro enable_irq msrset r0, MSR_IE - nop .endm .macro set_ums msrset r0, MSR_UMS - nop msrclr r0, MSR_VMS - nop .endm .macro set_vms msrclr r0, MSR_UMS - nop msrset r0, MSR_VMS - nop .endm .macro clear_ums msrclr r0, MSR_UMS - nop .endm .macro clear_vms_ums msrclr r0, MSR_VMS | MSR_UMS - nop .endm #else .macro clear_bip mfs r11, rmsr - nop andi r11, r11, ~MSR_BIP mts rmsr, r11 - nop .endm .macro set_bip mfs r11, rmsr - nop ori r11, r11, MSR_BIP mts rmsr, r11 - nop .endm .macro clear_eip mfs r11, rmsr - nop andi r11, r11, ~MSR_EIP mts rmsr, r11 - nop .endm .macro set_ee mfs r11, rmsr - nop ori r11, r11, MSR_EE mts rmsr, r11 - nop .endm .macro disable_irq mfs r11, rmsr - nop andi r11, r11, ~MSR_IE mts rmsr, r11 - nop .endm .macro enable_irq mfs r11, rmsr - nop ori r11, r11, MSR_IE mts rmsr, r11 - nop .endm .macro set_ums mfs r11, rmsr - nop ori r11, r11, MSR_VMS andni r11, r11, MSR_UMS mts rmsr, r11 - nop .endm .macro set_vms mfs r11, rmsr - nop ori r11, r11, MSR_VMS andni r11, r11, MSR_UMS mts rmsr, r11 - nop .endm .macro clear_ums mfs r11, rmsr - nop andni r11, r11, MSR_UMS mts rmsr,r11 - nop .endm .macro clear_vms_ums mfs r11, rmsr - nop andni r11, r11, (MSR_VMS|MSR_UMS) mts rmsr,r11 - nop .endm #endif @@ -233,13 +201,11 @@ swi r30, r1, PTO+PT_R30; \ swi r31, r1, PTO+PT_R31; /* Save current task reg */ \ mfs r11, rmsr; /* save MSR */ \ - nop; \ swi r11, r1, PTO+PT_MSR; #define RESTORE_REGS \ lwi r11, r1, PTO+PT_MSR; \ mts rmsr , r11; \ - nop; \ lwi r2, r1, PTO+PT_R2; /* restore SDA */ \ lwi r3, r1, PTO+PT_R3; \ lwi r4, r1, PTO+PT_R4; \ @@ -273,7 +239,6 @@ swi r1, r0, TOPHYS(PER_CPU(ENTRY_SP)); /* save stack */ \ /* See if already in kernel mode.*/ \ mfs r1, rmsr; \ - nop; \ andi r1, r1, MSR_UMS; \ bnei r1, 1f; \ /* Kernel-mode state save. */ \ @@ -518,11 +483,8 @@ C_ENTRY(full_exception_trap): /* where the trap should return need -8 to adjust for rtsd r15, 8 */ addik r15, r0, ret_from_exc - 8 mfs r6, resr - nop mfs r7, rfsr; /* save FSR */ - nop mts rfsr, r0; /* Clear sticky fsr */ - nop rted r0, full_exception addik r5, r1, PTO /* parameter struct pt_regs * regs */ @@ -555,9 +517,7 @@ C_ENTRY(unaligned_data_trap): /* where the trap should return need -8 to adjust for rtsd r15, 8 */ addik r15, r0, ret_from_exc-8 mfs r3, resr /* ESR */ - nop mfs r4, rear /* EAR */ - nop rtbd r0, _unaligned_data_exception addik r7, r1, PTO /* parameter struct pt_regs * regs */ @@ -587,9 +547,7 @@ C_ENTRY(page_fault_data_trap): /* where the trap should return need -8 to adjust for rtsd r15, 8 */ addik r15, r0, ret_from_exc-8 mfs r6, rear /* parameter unsigned long address */ - nop mfs r7, resr /* parameter unsigned long error_code */ - nop rted r0, do_page_fault addik r5, r1, PTO /* parameter struct pt_regs * regs */ @@ -601,7 +559,6 @@ C_ENTRY(page_fault_instr_trap): /* where the trap should return need -8 to adjust for rtsd r15, 8 */ addik r15, r0, ret_from_exc-8 mfs r6, rear /* parameter unsigned long address */ - nop ori r7, r0, 0 /* parameter unsigned long error_code */ rted r0, do_page_fault addik r5, r1, PTO /* parameter struct pt_regs * regs */ @@ -936,16 +893,12 @@ ENTRY(_switch_to) swi r30, r11, CC_R30 /* special purpose registers */ mfs r12, rmsr - nop swi r12, r11, CC_MSR mfs r12, rear - nop swi r12, r11, CC_EAR mfs r12, resr - nop swi r12, r11, CC_ESR mfs r12, rfsr - nop swi r12, r11, CC_FSR /* update r31, the current-give me pointer to task which will be next */ @@ -984,10 +937,8 @@ ENTRY(_switch_to) /* special purpose registers */ lwi r12, r11, CC_FSR mts rfsr, r12 - nop lwi r12, r11, CC_MSR mts rmsr, r12 - nop rtsd r15, 8 nop @@ -997,10 +948,8 @@ ENTRY(_reset) ENTRY(_break) mfs r5, rmsr - nop swi r5, r0, 0x250 + TOPHYS(r0_ram) mfs r5, resr - nop swi r5, r0, 0x254 + TOPHYS(r0_ram) bri 0 |