0197f21ca5
Prefetch early exception data. There is unused space in our exception handler cache line anyway, so this is almost free. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
38 lines
580 B
ArmAsm
38 lines
580 B
ArmAsm
! entry.S macro define
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.macro cli
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stc sr, r0
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or #0xf0, r0
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ldc r0, sr
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.endm
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.macro sti
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mov #0xf0, r11
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extu.b r11, r11
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not r11, r11
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stc sr, r10
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and r11, r10
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#ifdef CONFIG_CPU_HAS_SR_RB
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stc k_g_imask, r11
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or r11, r10
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#endif
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ldc r10, sr
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.endm
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.macro get_current_thread_info, ti, tmp
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#ifdef CONFIG_CPU_HAS_SR_RB
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stc r7_bank, \ti
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#else
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mov #((THREAD_SIZE - 1) >> 10) ^ 0xff, \tmp
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shll8 \tmp
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shll2 \tmp
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mov r15, \ti
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and \tmp, \ti
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#endif
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.endm
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#if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH4)
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# define PREF(x) pref @x
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#else
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# define PREF(x) nop
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#endif
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