HelenOSHelenOS-docHelenOS-historic

Català-Valencià – Catalan中文 – Chinese (Simplified)中文 – Chinese (Traditional)Česky – CzechDansk – DanishNederlands – DutchEnglish – EnglishSuomi – FinnishFrançais – FrenchDeutsch – Germanעברית – Hebrewहिंदी – HindiMagyar – HungarianBahasa Indonesia – IndonesianItaliano – Italian日本語 – Japanese한국어 – KoreanМакедонски – Macedonianमराठी – MarathiNorsk – NorwegianPolski – PolishPortuguês – PortuguesePortuguês – Portuguese (Brazil)Русский – RussianSlovenčina – SlovakSlovenščina – SlovenianEspañol – SpanishSvenska – SwedishTürkçe – TurkishУкраїнська – UkrainianOëzbekcha – Uzbek

Compare Revisions

• This comparison shows the changes necessary to convert path

  → /trunk/kernel/arch/sparc64/src/trap/ @ 1881

  → /trunk/kernel/arch/sparc64/src/trap/ @ 1882

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 1881 → Rev 1882

/trunk/kernel/arch/sparc64/src/trap/exception.c
37,6 → 37,7
#include <arch/interrupt.h>
#include <interrupt.h>
#include <arch/asm.h>
#include <arch/register.h>
#include <debug.h>
#include <typedefs.h>
#include <symtab.h>
81,6 → 82,27
panic("%s\n", __FUNCTION__);
}
/** Handle fp_disabled. (0x20) */
void fp_disabled(int n, istate_t *istate)
{
fprs_reg_t fprs;
fprs.value = fprs_read();
if (!fprs.fef) {
fprs.fef = true;
fprs_write(fprs.value);
return;
}
#ifdef CONFIG_FPU_LAZY
scheduler_fpu_lazy_request();
#else
fault_if_from_uspace(istate, "%s\n", __FUNCTION__);
dump_istate(istate);
panic("%s\n", __FUNCTION__);
#endif
}
/** Handle division_by_zero. (0x28) */
void division_by_zero(int n, istate_t *istate)
{

/trunk/kernel/arch/sparc64/src/trap/trap_table.S
82,10 → 82,16
privileged_opcode_tl0:
PREEMPTIBLE_HANDLER privileged_opcode
/* TT = 0x20, TL = 0, fb_disabled handler */
.org trap_table + TT_FP_DISABLED*ENTRY_SIZE
.global fb_disabled_tl0
fp_disabled_tl0:
PREEMPTIBLE_HANDLER fp_disabled
/* TT = 0x24, TL = 0, clean_window handler */
.org trap_table + TT_CLEAN_WINDOW*ENTRY_SIZE
.global clean_window_handler_tl0
clean_window_handler_tl0:
.global clean_window_tl0
clean_window_tl0:
CLEAN_WINDOW_HANDLER
/* TT = 0x28, TL = 0, division_by_zero */
489,8 → 495,8
/* TT = 0x24, TL > 0, clean_window handler */
.org trap_table + (TT_CLEAN_WINDOW+512)*ENTRY_SIZE
.global clean_window_handler_tl1
clean_window_handler_tl1:
.global clean_window_tl1
clean_window_tl1:
CLEAN_WINDOW_HANDLER
/* TT = 0x28, TL > 0, division_by_zero */
688,7 → 694,7
stx %g3, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TNPC]
wrpr %g0, 0, %tl
wrpr %g0, PSTATE_PRIV_BIT, %pstate
wrpr %g0, PSTATE_PRIV_BIT | PSTATE_PEF_BIT, %pstate
SAVE_GLOBALS
/*
705,6 → 711,7
.endif
RESTORE_GLOBALS
rdpr %pstate, %l1 ! we must preserve the PEF bit
wrpr %g0, PSTATE_AG_BIT | PSTATE_PRIV_BIT, %pstate
wrpr %g0, 1, %tl
716,6 → 723,15
ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TNPC], %g3
/*
* Copy PSTATE.PEF to the in-register copy of TSTATE.
*/
and %l1, PSTATE_PEF_BIT, %l1
sllx %l1, TSTATE_PSTATE_SHIFT, %l1
sethi %hi(TSTATE_PEF_BIT), %g4
andn %g1, %g4, %g1
or %g1, %l1, %g1
/*
* Restore TSTATE, TPC and TNPC from saved copies.
*/
wrpr %g1, 0, %tstate
722,6 → 738,7
wrpr %g2, 0, %tpc
wrpr %g3, 0, %tnpc
/*
* If OTHERWIN is zero, then all the userspace windows have been
* spilled to kernel memory (i.e. register window buffer). Moreover,