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Rev 2071 Rev 2860
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 * is very important and prevents any implicit window
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 * is very important and prevents any implicit window
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 * spill/fill/clean traps in these very core kernel
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 * spill/fill/clean traps in these very core kernel
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 * functions.
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 * functions.
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 */
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 */
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#include <arch/context_offset.h>
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.text
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.text
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.global context_save_arch
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.global context_save_arch
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.global context_restore_arch
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.global context_restore_arch
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.macro CONTEXT_STORE r
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	stx %sp, [\r + OFFSET_SP]
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	stx %o7, [\r + OFFSET_PC]
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	stx %i0, [\r + OFFSET_I0]
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	stx %i1, [\r + OFFSET_I1]
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	stx %i2, [\r + OFFSET_I2]
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	stx %i3, [\r + OFFSET_I3]
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	stx %i4, [\r + OFFSET_I4]
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	stx %i5, [\r + OFFSET_I5]
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	stx %fp, [\r + OFFSET_FP]
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	stx %i7, [\r + OFFSET_I7]
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	stx %l0, [\r + OFFSET_L0]
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	stx %l1, [\r + OFFSET_L1]
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	stx %l2, [\r + OFFSET_L2]
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	stx %l3, [\r + OFFSET_L3]
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	stx %l4, [\r + OFFSET_L4]
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	stx %l5, [\r + OFFSET_L5]
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	stx %l6, [\r + OFFSET_L6]
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	stx %l7, [\r + OFFSET_L7]
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.endm
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.macro CONTEXT_LOAD r
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	ldx [\r + OFFSET_SP], %sp
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	ldx [\r + OFFSET_PC], %o7
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	ldx [\r + OFFSET_I0], %i0
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	ldx [\r + OFFSET_I1], %i1
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	ldx [\r + OFFSET_I2], %i2
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	ldx [\r + OFFSET_I3], %i3
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	ldx [\r + OFFSET_I4], %i4
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	ldx [\r + OFFSET_I5], %i5
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	ldx [\r + OFFSET_FP], %fp
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	ldx [\r + OFFSET_I7], %i7
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	ldx [\r + OFFSET_L0], %l0
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	ldx [\r + OFFSET_L1], %l1
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	ldx [\r + OFFSET_L2], %l2
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	ldx [\r + OFFSET_L3], %l3
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	ldx [\r + OFFSET_L4], %l4
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	ldx [\r + OFFSET_L5], %l5
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	ldx [\r + OFFSET_L6], %l6
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	ldx [\r + OFFSET_L7], %l7
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.endm
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context_save_arch:
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context_save_arch:
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	CONTEXT_STORE %o0
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	CONTEXT_SAVE_ARCH_CORE %o0
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	retl
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	retl
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	mov 1, %o0		! context_save_arch returns 1
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	mov 1, %o0		! context_save_arch returns 1
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context_restore_arch:
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context_restore_arch:
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	#
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	#
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	# Flushing all active windows mitigates this problem
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	# Flushing all active windows mitigates this problem
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	# as CWP - 1 becomes the overlap window.
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	# as CWP - 1 becomes the overlap window.
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	#
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	#
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	flushw
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	flushw
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	CONTEXT_LOAD %o0
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	CONTEXT_RESTORE_ARCH_CORE %o0
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	retl
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	retl
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	xor %o0, %o0, %o0	! context_restore_arch returns 0
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	xor %o0, %o0, %o0	! context_restore_arch returns 0