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/ *
* This f i l e i s s u b j e c t t o t h e t e r m s a n d c o n d i t i o n s o f t h e G N U G e n e r a l P u b l i c
* License. S e e t h e f i l e " C O P Y I N G " i n t h e m a i n d i r e c t o r y o f t h i s a r c h i v e
* for m o r e d e t a i l s .
*
* Copyright ( C ) 1 9 9 4 , 1 9 9 5 , 1 9 9 6 , 1 9 9 8 , 1 9 9 9 , 2 0 0 2 , 2 0 0 3 R a l f B a e c h l e
2011-04-04 14:15:29 -07:00
* Copyright ( C ) 1 9 9 6 D a v i d S . M i l l e r ( d a v e m @davemloft.net)
2009-01-08 16:46:40 -08:00
* Copyright ( C ) 1 9 9 4 , 1 9 9 5 , 1 9 9 6 , b y A n d r e a s B u s s e
* Copyright ( C ) 1 9 9 9 S i l i c o n G r a p h i c s , I n c .
* Copyright ( C ) 2 0 0 0 M I P S T e c h n o l o g i e s , I n c .
* written b y C a r s t e n L a n g g a a r d , c a r s t e n l @mips.com
* /
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# include < a s m / a s m . h >
# include < a s m / e x p o r t . h >
# include < a s m / a s m - o f f s e t s . h >
# include < a s m / m i p s r e g s . h >
# include < a s m / r e g d e f . h >
# include < a s m / s t a c k f r a m e . h >
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/ *
* task_ s t r u c t * r e s u m e ( t a s k _ s t r u c t * p r e v , t a s k _ s t r u c t * n e x t ,
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* struct t h r e a d _ i n f o * n e x t _ t i )
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* /
.align 7
LEAF( r e s u m e )
.set octeon
mfc0 t 1 , C P 0 _ S T A T U S
LONG_ S t 1 , T H R E A D _ S T A T U S ( a0 )
cpu_ s a v e _ n o n s c r a t c h a0
LONG_ S r a , T H R E A D _ R E G 3 1 ( a0 )
# if C O N F I G _ C A V I U M _ O C T E O N _ C V M S E G _ S I Z E > 0
/* Check if we need to store CVMSEG state */
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dmfc0 t 0 , $ 1 1 ,7 / * C v m M e m C t l * /
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bbit0 t 0 , 6 , 3 f / * I s u s e r a c c e s s e n a b l e d ? * /
/* Store the CVMSEG state */
/* Extract the size of CVMSEG */
andi t 0 , 0 x3 f
/* Multiply * (cache line size/sizeof(long)/2) */
sll t 0 , 7 - L O N G L O G - 1
2013-01-22 12:59:30 +01:00
li t 1 , - 3 2 7 6 8 / * B a s e a d d r e s s o f C V M S E G * /
LONG_ A D D I t 2 , a0 , T H R E A D _ C V M S E G / * W h e r e t o s t o r e C V M S E G t o * /
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synciobdma
2 :
.set noreorder
LONG_ L t 8 , 0 ( t 1 ) / * L o a d f r o m C V M S E G * /
subu t 0 , 1 / * D e c r e m e n t l o o p v a r * /
LONG_ L t 9 , L O N G S I Z E ( t 1 ) / * L o a d f r o m C V M S E G * /
LONG_ A D D U t 1 , L O N G S I Z E * 2 / * I n c r e m e n t l o c i n C V M S E G * /
LONG_ S t 8 , 0 ( t 2 ) / * S t o r e C V M S E G t o t h r e a d s t o r a g e * /
LONG_ A D D U t 2 , L O N G S I Z E * 2 / * I n c r e m e n t l o c i n t h r e a d s t o r a g e * /
bnez t 0 , 2 b / * L o o p u n t i l w e ' v e c o p i e d i t a l l * /
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LONG_ S t 9 , - L O N G S I Z E ( t 2 ) / * S t o r e C V M S E G t o t h r e a d s t o r a g e * /
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.set reorder
/* Disable access to CVMSEG */
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dmfc0 t 0 , $ 1 1 ,7 / * C v m M e m C t l * /
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xori t 0 , t 0 , 0 x40 / * B i t 6 i s C V M S E G u s e r e n a b l e * /
2015-01-15 16:11:08 +03:00
dmtc0 t 0 , $ 1 1 ,7 / * C v m M e m C t l * /
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# endif
3 :
2013-06-17 19:36:07 +00:00
Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables
The changes to automatically test for working stack protector compiler
support in the Kconfig files removed the special STACKPROTECTOR_AUTO
option that picked the strongest stack protector that the compiler
supported.
That was all a nice cleanup - it makes no sense to have the AUTO case
now that the Kconfig phase can just determine the compiler support
directly.
HOWEVER.
It also meant that doing "make oldconfig" would now _disable_ the strong
stackprotector if you had AUTO enabled, because in a legacy config file,
the sane stack protector configuration would look like
CONFIG_HAVE_CC_STACKPROTECTOR=y
# CONFIG_CC_STACKPROTECTOR_NONE is not set
# CONFIG_CC_STACKPROTECTOR_REGULAR is not set
# CONFIG_CC_STACKPROTECTOR_STRONG is not set
CONFIG_CC_STACKPROTECTOR_AUTO=y
and when you ran this through "make oldconfig" with the Kbuild changes,
it would ask you about the regular CONFIG_CC_STACKPROTECTOR (that had
been renamed from CONFIG_CC_STACKPROTECTOR_REGULAR to just
CONFIG_CC_STACKPROTECTOR), but it would think that the STRONG version
used to be disabled (because it was really enabled by AUTO), and would
disable it in the new config, resulting in:
CONFIG_HAVE_CC_STACKPROTECTOR=y
CONFIG_CC_HAS_STACKPROTECTOR_NONE=y
CONFIG_CC_STACKPROTECTOR=y
# CONFIG_CC_STACKPROTECTOR_STRONG is not set
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y
That's dangerously subtle - people could suddenly find themselves with
the weaker stack protector setup without even realizing.
The solution here is to just rename not just the old RECULAR stack
protector option, but also the strong one. This does that by just
removing the CC_ prefix entirely for the user choices, because it really
is not about the compiler support (the compiler support now instead
automatially impacts _visibility_ of the options to users).
This results in "make oldconfig" actually asking the user for their
choice, so that we don't have any silent subtle security model changes.
The end result would generally look like this:
CONFIG_HAVE_CC_STACKPROTECTOR=y
CONFIG_CC_HAS_STACKPROTECTOR_NONE=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y
where the "CC_" versions really are about internal compiler
infrastructure, not the user selections.
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-06-14 12:21:18 +09:00
# if d e f i n e d ( C O N F I G _ S T A C K P R O T E C T O R ) & & ! d e f i n e d ( C O N F I G _ S M P )
2013-10-07 12:14:26 +01:00
PTR_ L A t 8 , _ _ s t a c k _ c h k _ g u a r d
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LONG_ L t 9 , T A S K _ S T A C K _ C A N A R Y ( a1 )
LONG_ S t 9 , 0 ( t 8 )
# endif
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/ *
* The o r d e r o f r e s t o r i n g t h e r e g i s t e r s t a k e s c a r e o f t h e r a c e
* updating $ 2 8 , $ 2 9 a n d k e r n e l s p w i t h o u t d i s a b l i n g i n t s .
* /
move $ 2 8 , a2
cpu_ r e s t o r e _ n o n s c r a t c h a1
2014-05-28 23:52:04 +02:00
PTR_ A D D U t 0 , $ 2 8 , _ T H R E A D _ S I Z E - 3 2
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set_ s a v e d _ s p t 0 , t 1 , t 2
mfc0 t 1 , C P 0 _ S T A T U S / * D o w e r e a l l y n e e d t h i s ? * /
li a3 , 0 x f f01
and t 1 , a3
LONG_ L a2 , T H R E A D _ S T A T U S ( a1 )
nor a3 , $ 0 , a3
and a2 , a3
or a2 , t 1
mtc0 a2 , C P 0 _ S T A T U S
move v0 , a0
jr r a
END( r e s u m e )
/ *
* void o c t e o n _ c o p2 _ s a v e ( s t r u c t o c t e o n _ c o p2 _ s t a t e * a0 )
* /
.align 7
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.set push
.set noreorder
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LEAF( o c t e o n _ c o p2 _ s a v e )
dmfc0 t 9 , $ 9 ,7 / * C v m C t l r e g i s t e r . * /
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/* Save the COP2 CRC state */
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dmfc2 t 0 , 0 x02 0 1
dmfc2 t 1 , 0 x02 0 2
dmfc2 t 2 , 0 x02 0 0
sd t 0 , O C T E O N _ C P 2 _ C R C _ I V ( a0 )
sd t 1 , O C T E O N _ C P 2 _ C R C _ L E N G T H ( a0 )
/* Skip next instructions if CvmCtl[NODFA_CP2] set */
bbit1 t 9 , 2 8 , 1 f
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sd t 2 , O C T E O N _ C P 2 _ C R C _ P O L Y ( a0 )
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/* Save the LLM state */
dmfc2 t 0 , 0 x04 0 2
dmfc2 t 1 , 0 x04 0 A
sd t 0 , O C T E O N _ C P 2 _ L L M _ D A T ( a0 )
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1 : bbit1 t 9 , 2 6 , 3 f / * d o n e i f C v m C t l [ N O C R Y P T O ] s e t * /
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sd t 1 , O C T E O N _ C P 2 _ L L M _ D A T + 8 ( a0 )
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/* Save the COP2 crypto state */
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/* this part is mostly common to both pass 1 and later revisions */
dmfc2 t 0 , 0 x00 8 4
dmfc2 t 1 , 0 x00 8 0
dmfc2 t 2 , 0 x00 8 1
dmfc2 t 3 , 0 x00 8 2
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sd t 0 , O C T E O N _ C P 2 _ 3 D E S _ I V ( a0 )
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dmfc2 t 0 , 0 x00 8 8
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sd t 1 , O C T E O N _ C P 2 _ 3 D E S _ K E Y ( a0 )
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dmfc2 t 1 , 0 x01 1 1 / * o n l y n e c e s s a r y f o r p a s s 1 * /
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sd t 2 , O C T E O N _ C P 2 _ 3 D E S _ K E Y + 8 ( a0 )
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dmfc2 t 2 , 0 x01 0 2
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sd t 3 , O C T E O N _ C P 2 _ 3 D E S _ K E Y + 1 6 ( a0 )
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dmfc2 t 3 , 0 x01 0 3
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sd t 0 , O C T E O N _ C P 2 _ 3 D E S _ R E S U L T ( a0 )
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dmfc2 t 0 , 0 x01 0 4
sd t 1 , O C T E O N _ C P 2 _ A E S _ I N P 0 ( a0 ) / * o n l y n e c e s s a r y f o r p a s s 1 * /
dmfc2 t 1 , 0 x01 0 5
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sd t 2 , O C T E O N _ C P 2 _ A E S _ I V ( a0 )
dmfc2 t 2 , 0 x01 0 6
sd t 3 , O C T E O N _ C P 2 _ A E S _ I V + 8 ( a0 )
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dmfc2 t 3 , 0 x01 0 7
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sd t 0 , O C T E O N _ C P 2 _ A E S _ K E Y ( a0 )
dmfc2 t 0 , 0 x01 1 0
sd t 1 , O C T E O N _ C P 2 _ A E S _ K E Y + 8 ( a0 )
dmfc2 t 1 , 0 x01 0 0
sd t 2 , O C T E O N _ C P 2 _ A E S _ K E Y + 1 6 ( a0 )
dmfc2 t 2 , 0 x01 0 1
sd t 3 , O C T E O N _ C P 2 _ A E S _ K E Y + 2 4 ( a0 )
2015-01-15 16:11:07 +03:00
mfc0 v0 , $ 1 5 ,0 / * G e t t h e p r o c e s s o r I D r e g i s t e r * /
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sd t 0 , O C T E O N _ C P 2 _ A E S _ K E Y L E N ( a0 )
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li v1 , 0 x00 0 d00 0 0 / * T h i s i s t h e p r o c e s s o r I D o f O c t e o n P a s s1 * /
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sd t 1 , O C T E O N _ C P 2 _ A E S _ R E S U L T ( a0 )
/* Skip to the Pass1 version of the remainder of the COP2 state */
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beq v0 , v1 , 2 f
sd t 2 , O C T E O N _ C P 2 _ A E S _ R E S U L T + 8 ( a0 )
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2013-01-22 12:59:30 +01:00
/* the non-pass1 state when !CvmCtl[NOCRYPTO] */
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dmfc2 t 1 , 0 x02 4 0
dmfc2 t 2 , 0 x02 4 1
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ori v1 , v1 , 0 x95 0 0 / * l o w e s t O C T E O N I I I P r I d * /
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dmfc2 t 3 , 0 x02 4 2
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subu v1 , v0 , v1 / * p r i d - l o w e s t O C T E O N I I I P r I d * /
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dmfc2 t 0 , 0 x02 4 3
sd t 1 , O C T E O N _ C P 2 _ H S H _ D A T W ( a0 )
dmfc2 t 1 , 0 x02 4 4
sd t 2 , O C T E O N _ C P 2 _ H S H _ D A T W + 8 ( a0 )
dmfc2 t 2 , 0 x02 4 5
sd t 3 , O C T E O N _ C P 2 _ H S H _ D A T W + 1 6 ( a0 )
dmfc2 t 3 , 0 x02 4 6
sd t 0 , O C T E O N _ C P 2 _ H S H _ D A T W + 2 4 ( a0 )
dmfc2 t 0 , 0 x02 4 7
sd t 1 , O C T E O N _ C P 2 _ H S H _ D A T W + 3 2 ( a0 )
dmfc2 t 1 , 0 x02 4 8
sd t 2 , O C T E O N _ C P 2 _ H S H _ D A T W + 4 0 ( a0 )
dmfc2 t 2 , 0 x02 4 9
sd t 3 , O C T E O N _ C P 2 _ H S H _ D A T W + 4 8 ( a0 )
dmfc2 t 3 , 0 x02 4 A
sd t 0 , O C T E O N _ C P 2 _ H S H _ D A T W + 5 6 ( a0 )
dmfc2 t 0 , 0 x02 4 B
sd t 1 , O C T E O N _ C P 2 _ H S H _ D A T W + 6 4 ( a0 )
dmfc2 t 1 , 0 x02 4 C
sd t 2 , O C T E O N _ C P 2 _ H S H _ D A T W + 7 2 ( a0 )
dmfc2 t 2 , 0 x02 4 D
sd t 3 , O C T E O N _ C P 2 _ H S H _ D A T W + 8 0 ( a0 )
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dmfc2 t 3 , 0 x02 4 E
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sd t 0 , O C T E O N _ C P 2 _ H S H _ D A T W + 8 8 ( a0 )
dmfc2 t 0 , 0 x02 5 0
sd t 1 , O C T E O N _ C P 2 _ H S H _ D A T W + 9 6 ( a0 )
dmfc2 t 1 , 0 x02 5 1
sd t 2 , O C T E O N _ C P 2 _ H S H _ D A T W + 1 0 4 ( a0 )
dmfc2 t 2 , 0 x02 5 2
sd t 3 , O C T E O N _ C P 2 _ H S H _ D A T W + 1 1 2 ( a0 )
dmfc2 t 3 , 0 x02 5 3
sd t 0 , O C T E O N _ C P 2 _ H S H _ I V W ( a0 )
dmfc2 t 0 , 0 x02 5 4
sd t 1 , O C T E O N _ C P 2 _ H S H _ I V W + 8 ( a0 )
dmfc2 t 1 , 0 x02 5 5
sd t 2 , O C T E O N _ C P 2 _ H S H _ I V W + 1 6 ( a0 )
dmfc2 t 2 , 0 x02 5 6
sd t 3 , O C T E O N _ C P 2 _ H S H _ I V W + 2 4 ( a0 )
dmfc2 t 3 , 0 x02 5 7
sd t 0 , O C T E O N _ C P 2 _ H S H _ I V W + 3 2 ( a0 )
2013-01-22 12:59:30 +01:00
dmfc2 t 0 , 0 x02 5 8
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sd t 1 , O C T E O N _ C P 2 _ H S H _ I V W + 4 0 ( a0 )
2013-01-22 12:59:30 +01:00
dmfc2 t 1 , 0 x02 5 9
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sd t 2 , O C T E O N _ C P 2 _ H S H _ I V W + 4 8 ( a0 )
dmfc2 t 2 , 0 x02 5 E
sd t 3 , O C T E O N _ C P 2 _ H S H _ I V W + 5 6 ( a0 )
dmfc2 t 3 , 0 x02 5 A
sd t 0 , O C T E O N _ C P 2 _ G F M _ M U L T ( a0 )
dmfc2 t 0 , 0 x02 5 B
sd t 1 , O C T E O N _ C P 2 _ G F M _ M U L T + 8 ( a0 )
sd t 2 , O C T E O N _ C P 2 _ G F M _ P O L Y ( a0 )
sd t 3 , O C T E O N _ C P 2 _ G F M _ R E S U L T ( a0 )
2015-01-15 16:11:07 +03:00
bltz v1 , 4 f
sd t 0 , O C T E O N _ C P 2 _ G F M _ R E S U L T + 8 ( a0 )
/* OCTEON III things*/
dmfc2 t 0 , 0 x02 4 F
dmfc2 t 1 , 0 x00 5 0
sd t 0 , O C T E O N _ C P 2 _ S H A 3 ( a0 )
sd t 1 , O C T E O N _ C P 2 _ S H A 3 + 8 ( a0 )
4 :
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jr r a
2015-01-15 16:11:07 +03:00
nop
2009-01-08 16:46:40 -08:00
2013-01-22 12:59:30 +01:00
2 : /* pass 1 special stuff when !CvmCtl[NOCRYPTO] */
2009-01-08 16:46:40 -08:00
dmfc2 t 3 , 0 x00 4 0
dmfc2 t 0 , 0 x00 4 1
dmfc2 t 1 , 0 x00 4 2
dmfc2 t 2 , 0 x00 4 3
sd t 3 , O C T E O N _ C P 2 _ H S H _ D A T W ( a0 )
dmfc2 t 3 , 0 x00 4 4
sd t 0 , O C T E O N _ C P 2 _ H S H _ D A T W + 8 ( a0 )
dmfc2 t 0 , 0 x00 4 5
sd t 1 , O C T E O N _ C P 2 _ H S H _ D A T W + 1 6 ( a0 )
dmfc2 t 1 , 0 x00 4 6
sd t 2 , O C T E O N _ C P 2 _ H S H _ D A T W + 2 4 ( a0 )
dmfc2 t 2 , 0 x00 4 8
sd t 3 , O C T E O N _ C P 2 _ H S H _ D A T W + 3 2 ( a0 )
dmfc2 t 3 , 0 x00 4 9
sd t 0 , O C T E O N _ C P 2 _ H S H _ D A T W + 4 0 ( a0 )
dmfc2 t 0 , 0 x00 4 A
sd t 1 , O C T E O N _ C P 2 _ H S H _ D A T W + 4 8 ( a0 )
sd t 2 , O C T E O N _ C P 2 _ H S H _ I V W ( a0 )
sd t 3 , O C T E O N _ C P 2 _ H S H _ I V W + 8 ( a0 )
sd t 0 , O C T E O N _ C P 2 _ H S H _ I V W + 1 6 ( a0 )
2013-01-22 12:59:30 +01:00
3 : /* pass 1 or CvmCtl[NOCRYPTO] set */
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jr r a
2015-01-15 16:11:07 +03:00
nop
2009-01-08 16:46:40 -08:00
END( o c t e o n _ c o p2 _ s a v e )
2015-01-15 16:11:07 +03:00
.set pop
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/ *
* void o c t e o n _ c o p2 _ r e s t o r e ( s t r u c t o c t e o n _ c o p2 _ s t a t e * a0 )
* /
.align 7
.set push
.set noreorder
LEAF( o c t e o n _ c o p2 _ r e s t o r e )
2013-01-22 12:59:30 +01:00
/* First cache line was prefetched before the call */
pref 4 , 1 2 8 ( a0 )
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dmfc0 t 9 , $ 9 ,7 / * C v m C t l r e g i s t e r . * /
2013-01-22 12:59:30 +01:00
pref 4 , 2 5 6 ( a0 )
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ld t 0 , O C T E O N _ C P 2 _ C R C _ I V ( a0 )
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pref 4 , 3 8 4 ( a0 )
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ld t 1 , O C T E O N _ C P 2 _ C R C _ L E N G T H ( a0 )
ld t 2 , O C T E O N _ C P 2 _ C R C _ P O L Y ( a0 )
/* Restore the COP2 CRC state */
dmtc2 t 0 , 0 x02 0 1
2013-01-22 12:59:30 +01:00
dmtc2 t 1 , 0 x12 0 2
2009-01-08 16:46:40 -08:00
bbit1 t 9 , 2 8 , 2 f / * S k i p L L M i f C v m C t l [ N O D F A _ C P 2 ] i s s e t * /
dmtc2 t 2 , 0 x42 0 0
/* Restore the LLM state */
ld t 0 , O C T E O N _ C P 2 _ L L M _ D A T ( a0 )
ld t 1 , O C T E O N _ C P 2 _ L L M _ D A T + 8 ( a0 )
dmtc2 t 0 , 0 x04 0 2
dmtc2 t 1 , 0 x04 0 A
2 :
bbit1 t 9 , 2 6 , d o n e _ r e s t o r e / * d o n e i f C v m C t l [ N O C R Y P T O ] s e t * /
nop
/* Restore the COP2 crypto state common to pass 1 and pass 2 */
ld t 0 , O C T E O N _ C P 2 _ 3 D E S _ I V ( a0 )
ld t 1 , O C T E O N _ C P 2 _ 3 D E S _ K E Y ( a0 )
ld t 2 , O C T E O N _ C P 2 _ 3 D E S _ K E Y + 8 ( a0 )
2013-01-22 12:59:30 +01:00
dmtc2 t 0 , 0 x00 8 4
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ld t 0 , O C T E O N _ C P 2 _ 3 D E S _ K E Y + 1 6 ( a0 )
2013-01-22 12:59:30 +01:00
dmtc2 t 1 , 0 x00 8 0
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ld t 1 , O C T E O N _ C P 2 _ 3 D E S _ R E S U L T ( a0 )
2013-01-22 12:59:30 +01:00
dmtc2 t 2 , 0 x00 8 1
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ld t 2 , O C T E O N _ C P 2 _ A E S _ I N P 0 ( a0 ) / * o n l y r e a l l y n e e d e d f o r p a s s 1 * /
dmtc2 t 0 , 0 x00 8 2
ld t 0 , O C T E O N _ C P 2 _ A E S _ I V ( a0 )
2013-01-22 12:59:30 +01:00
dmtc2 t 1 , 0 x00 9 8
2009-01-08 16:46:40 -08:00
ld t 1 , O C T E O N _ C P 2 _ A E S _ I V + 8 ( a0 )
2013-01-22 12:59:30 +01:00
dmtc2 t 2 , 0 x01 0 A / * o n l y r e a l l y n e e d e d f o r p a s s 1 * /
2009-01-08 16:46:40 -08:00
ld t 2 , O C T E O N _ C P 2 _ A E S _ K E Y ( a0 )
2013-01-22 12:59:30 +01:00
dmtc2 t 0 , 0 x01 0 2
2009-01-08 16:46:40 -08:00
ld t 0 , O C T E O N _ C P 2 _ A E S _ K E Y + 8 ( a0 )
dmtc2 t 1 , 0 x01 0 3
ld t 1 , O C T E O N _ C P 2 _ A E S _ K E Y + 1 6 ( a0 )
dmtc2 t 2 , 0 x01 0 4
ld t 2 , O C T E O N _ C P 2 _ A E S _ K E Y + 2 4 ( a0 )
dmtc2 t 0 , 0 x01 0 5
ld t 0 , O C T E O N _ C P 2 _ A E S _ K E Y L E N ( a0 )
dmtc2 t 1 , 0 x01 0 6
ld t 1 , O C T E O N _ C P 2 _ A E S _ R E S U L T ( a0 )
dmtc2 t 2 , 0 x01 0 7
ld t 2 , O C T E O N _ C P 2 _ A E S _ R E S U L T + 8 ( a0 )
2013-01-22 12:59:30 +01:00
mfc0 t 3 , $ 1 5 ,0 / * G e t t h e p r o c e s s o r I D r e g i s t e r * /
2009-01-08 16:46:40 -08:00
dmtc2 t 0 , 0 x01 1 0
2015-01-15 16:11:07 +03:00
li v0 , 0 x00 0 d00 0 0 / * T h i s i s t h e p r o c e s s o r I D o f O c t e o n P a s s1 * /
2009-01-08 16:46:40 -08:00
dmtc2 t 1 , 0 x01 0 0
2015-01-15 16:11:07 +03:00
bne v0 , t 3 , 3 f / * S k i p t h e n e x t s t u f f f o r n o n - p a s s1 * /
2009-01-08 16:46:40 -08:00
dmtc2 t 2 , 0 x01 0 1
2013-01-22 12:59:30 +01:00
/* this code is specific for pass 1 */
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ld t 0 , O C T E O N _ C P 2 _ H S H _ D A T W ( a0 )
ld t 1 , O C T E O N _ C P 2 _ H S H _ D A T W + 8 ( a0 )
ld t 2 , O C T E O N _ C P 2 _ H S H _ D A T W + 1 6 ( a0 )
dmtc2 t 0 , 0 x00 4 0
ld t 0 , O C T E O N _ C P 2 _ H S H _ D A T W + 2 4 ( a0 )
dmtc2 t 1 , 0 x00 4 1
ld t 1 , O C T E O N _ C P 2 _ H S H _ D A T W + 3 2 ( a0 )
dmtc2 t 2 , 0 x00 4 2
ld t 2 , O C T E O N _ C P 2 _ H S H _ D A T W + 4 0 ( a0 )
dmtc2 t 0 , 0 x00 4 3
ld t 0 , O C T E O N _ C P 2 _ H S H _ D A T W + 4 8 ( a0 )
dmtc2 t 1 , 0 x00 4 4
ld t 1 , O C T E O N _ C P 2 _ H S H _ I V W ( a0 )
dmtc2 t 2 , 0 x00 4 5
ld t 2 , O C T E O N _ C P 2 _ H S H _ I V W + 8 ( a0 )
dmtc2 t 0 , 0 x00 4 6
ld t 0 , O C T E O N _ C P 2 _ H S H _ I V W + 1 6 ( a0 )
dmtc2 t 1 , 0 x00 4 8
dmtc2 t 2 , 0 x00 4 9
2013-01-22 12:59:30 +01:00
b d o n e _ r e s t o r e / * u n c o n d i t i o n a l b r a n c h * /
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dmtc2 t 0 , 0 x00 4 A
2013-01-22 12:59:30 +01:00
3 : /* this is post-pass1 code */
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ld t 2 , O C T E O N _ C P 2 _ H S H _ D A T W ( a0 )
2015-01-15 16:11:07 +03:00
ori v0 , v0 , 0 x95 0 0 / * l o w e s t O C T E O N I I I P r I d * /
2009-01-08 16:46:40 -08:00
ld t 0 , O C T E O N _ C P 2 _ H S H _ D A T W + 8 ( a0 )
ld t 1 , O C T E O N _ C P 2 _ H S H _ D A T W + 1 6 ( a0 )
dmtc2 t 2 , 0 x02 4 0
ld t 2 , O C T E O N _ C P 2 _ H S H _ D A T W + 2 4 ( a0 )
dmtc2 t 0 , 0 x02 4 1
ld t 0 , O C T E O N _ C P 2 _ H S H _ D A T W + 3 2 ( a0 )
dmtc2 t 1 , 0 x02 4 2
ld t 1 , O C T E O N _ C P 2 _ H S H _ D A T W + 4 0 ( a0 )
dmtc2 t 2 , 0 x02 4 3
ld t 2 , O C T E O N _ C P 2 _ H S H _ D A T W + 4 8 ( a0 )
dmtc2 t 0 , 0 x02 4 4
ld t 0 , O C T E O N _ C P 2 _ H S H _ D A T W + 5 6 ( a0 )
dmtc2 t 1 , 0 x02 4 5
ld t 1 , O C T E O N _ C P 2 _ H S H _ D A T W + 6 4 ( a0 )
dmtc2 t 2 , 0 x02 4 6
ld t 2 , O C T E O N _ C P 2 _ H S H _ D A T W + 7 2 ( a0 )
dmtc2 t 0 , 0 x02 4 7
ld t 0 , O C T E O N _ C P 2 _ H S H _ D A T W + 8 0 ( a0 )
dmtc2 t 1 , 0 x02 4 8
ld t 1 , O C T E O N _ C P 2 _ H S H _ D A T W + 8 8 ( a0 )
dmtc2 t 2 , 0 x02 4 9
ld t 2 , O C T E O N _ C P 2 _ H S H _ D A T W + 9 6 ( a0 )
dmtc2 t 0 , 0 x02 4 A
ld t 0 , O C T E O N _ C P 2 _ H S H _ D A T W + 1 0 4 ( a0 )
dmtc2 t 1 , 0 x02 4 B
ld t 1 , O C T E O N _ C P 2 _ H S H _ D A T W + 1 1 2 ( a0 )
dmtc2 t 2 , 0 x02 4 C
ld t 2 , O C T E O N _ C P 2 _ H S H _ I V W ( a0 )
dmtc2 t 0 , 0 x02 4 D
ld t 0 , O C T E O N _ C P 2 _ H S H _ I V W + 8 ( a0 )
dmtc2 t 1 , 0 x02 4 E
ld t 1 , O C T E O N _ C P 2 _ H S H _ I V W + 1 6 ( a0 )
dmtc2 t 2 , 0 x02 5 0
ld t 2 , O C T E O N _ C P 2 _ H S H _ I V W + 2 4 ( a0 )
dmtc2 t 0 , 0 x02 5 1
ld t 0 , O C T E O N _ C P 2 _ H S H _ I V W + 3 2 ( a0 )
dmtc2 t 1 , 0 x02 5 2
ld t 1 , O C T E O N _ C P 2 _ H S H _ I V W + 4 0 ( a0 )
dmtc2 t 2 , 0 x02 5 3
ld t 2 , O C T E O N _ C P 2 _ H S H _ I V W + 4 8 ( a0 )
dmtc2 t 0 , 0 x02 5 4
ld t 0 , O C T E O N _ C P 2 _ H S H _ I V W + 5 6 ( a0 )
dmtc2 t 1 , 0 x02 5 5
ld t 1 , O C T E O N _ C P 2 _ G F M _ M U L T ( a0 )
dmtc2 t 2 , 0 x02 5 6
ld t 2 , O C T E O N _ C P 2 _ G F M _ M U L T + 8 ( a0 )
dmtc2 t 0 , 0 x02 5 7
ld t 0 , O C T E O N _ C P 2 _ G F M _ P O L Y ( a0 )
dmtc2 t 1 , 0 x02 5 8
ld t 1 , O C T E O N _ C P 2 _ G F M _ R E S U L T ( a0 )
dmtc2 t 2 , 0 x02 5 9
ld t 2 , O C T E O N _ C P 2 _ G F M _ R E S U L T + 8 ( a0 )
dmtc2 t 0 , 0 x02 5 E
2015-01-15 16:11:07 +03:00
subu v0 , t 3 , v0 / * p r i d - l o w e s t O C T E O N I I I P r I d * /
2009-01-08 16:46:40 -08:00
dmtc2 t 1 , 0 x02 5 A
2015-01-15 16:11:07 +03:00
bltz v0 , d o n e _ r e s t o r e
dmtc2 t 2 , 0 x02 5 B
/* OCTEON III things*/
ld t 0 , O C T E O N _ C P 2 _ S H A 3 ( a0 )
ld t 1 , O C T E O N _ C P 2 _ S H A 3 + 8 ( a0 )
dmtc2 t 0 , 0 x00 5 1
dmtc2 t 1 , 0 x00 5 0
2009-01-08 16:46:40 -08:00
done_restore :
jr r a
nop
END( o c t e o n _ c o p2 _ r e s t o r e )
.set pop
/ *
* void o c t e o n _ m u l t _ s a v e ( )
* sp i s a s s u m e d t o p o i n t t o a s t r u c t p t _ r e g s
*
2015-01-15 16:11:05 +03:00
* NOTE : This i s c a l l e d i n S A V E _ T E M P i n s t a c k f r a m e . h . I t c a n
* safely m o d i f y v1 ,k 0 , k 1 ,$ 1 0 - $ 1 5 , a n d $ 2 4 . I t w i l l
* be o v e r w r i t t e n w i t h a p r o c e s s o r s p e c i f i c v e r s i o n o f t h e c o d e .
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* /
2015-01-15 16:11:05 +03:00
.p2align 7
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.set push
.set noreorder
LEAF( o c t e o n _ m u l t _ s a v e )
2015-01-15 16:11:05 +03:00
jr r a
2009-01-08 16:46:40 -08:00
nop
2015-01-15 16:11:05 +03:00
.space 30 * 4 , 0
octeon_mult_save_end :
EXPORT( o c t e o n _ m u l t _ s a v e _ e n d )
END( o c t e o n _ m u l t _ s a v e )
2009-01-08 16:46:40 -08:00
2015-01-15 16:11:05 +03:00
LEAF( o c t e o n _ m u l t _ s a v e 2 )
/* Save the multiplier state OCTEON II and earlier*/
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v3 m u l u k 0 , $ 0 , $ 0
v3 m u l u k 1 , $ 0 , $ 0
2013-01-22 12:59:30 +01:00
sd k 0 , P T _ M T P ( s p ) / * P T _ M T P h a s P 0 * /
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v3 m u l u k 0 , $ 0 , $ 0
sd k 1 , P T _ M T P + 8 ( s p ) / * P T _ M T P + 8 h a s P 1 * /
ori k 1 , $ 0 , 1
v3 m u l u k 1 , k 1 , $ 0
sd k 0 , P T _ M T P + 1 6 ( s p ) / * P T _ M T P + 1 6 h a s P 2 * /
v3 m u l u k 0 , $ 0 , $ 0
2013-01-22 12:59:30 +01:00
sd k 1 , P T _ M P L ( s p ) / * P T _ M P L h a s M P L 0 * /
2009-01-08 16:46:40 -08:00
v3 m u l u k 1 , $ 0 , $ 0
sd k 0 , P T _ M P L + 8 ( s p ) / * P T _ M P L + 8 h a s M P L 1 * /
jr r a
sd k 1 , P T _ M P L + 1 6 ( s p ) / * P T _ M P L + 1 6 h a s M P L 2 * /
2015-01-15 16:11:05 +03:00
octeon_mult_save2_end :
EXPORT( o c t e o n _ m u l t _ s a v e 2 _ e n d )
END( o c t e o n _ m u l t _ s a v e 2 )
LEAF( o c t e o n _ m u l t _ s a v e 3 )
/* Save the multiplier state OCTEON III */
v3 m u l u $ 1 0 , $ 0 , $ 0 / * r e a d P 0 * /
v3 m u l u $ 1 1 , $ 0 , $ 0 / * r e a d P 1 * /
v3 m u l u $ 1 2 , $ 0 , $ 0 / * r e a d P 2 * /
sd $ 1 0 , P T _ M T P + ( 0 * 8 ) ( s p ) / * s t o r e P 0 * /
v3 m u l u $ 1 0 , $ 0 , $ 0 / * r e a d P 3 * /
sd $ 1 1 , P T _ M T P + ( 1 * 8 ) ( s p ) / * s t o r e P 1 * /
v3 m u l u $ 1 1 , $ 0 , $ 0 / * r e a d P 4 * /
sd $ 1 2 , P T _ M T P + ( 2 * 8 ) ( s p ) / * s t o r e P 2 * /
ori $ 1 3 , $ 0 , 1
v3 m u l u $ 1 2 , $ 0 , $ 0 / * r e a d P 5 * /
sd $ 1 0 , P T _ M T P + ( 3 * 8 ) ( s p ) / * s t o r e P 3 * /
v3 m u l u $ 1 3 , $ 1 3 , $ 0 / * P 4 - P 0 = M P L 5 - M P L 1 , $ 1 3 = M P L 0 * /
sd $ 1 1 , P T _ M T P + ( 4 * 8 ) ( s p ) / * s t o r e P 4 * /
v3 m u l u $ 1 0 , $ 0 , $ 0 / * r e a d M P L 1 * /
sd $ 1 2 , P T _ M T P + ( 5 * 8 ) ( s p ) / * s t o r e P 5 * /
v3 m u l u $ 1 1 , $ 0 , $ 0 / * r e a d M P L 2 * /
sd $ 1 3 , P T _ M P L + ( 0 * 8 ) ( s p ) / * s t o r e M P L 0 * /
v3 m u l u $ 1 2 , $ 0 , $ 0 / * r e a d M P L 3 * /
sd $ 1 0 , P T _ M P L + ( 1 * 8 ) ( s p ) / * s t o r e M P L 1 * /
v3 m u l u $ 1 0 , $ 0 , $ 0 / * r e a d M P L 4 * /
sd $ 1 1 , P T _ M P L + ( 2 * 8 ) ( s p ) / * s t o r e M P L 2 * /
v3 m u l u $ 1 1 , $ 0 , $ 0 / * r e a d M P L 5 * /
sd $ 1 2 , P T _ M P L + ( 3 * 8 ) ( s p ) / * s t o r e M P L 3 * /
sd $ 1 0 , P T _ M P L + ( 4 * 8 ) ( s p ) / * s t o r e M P L 4 * /
2009-01-08 16:46:40 -08:00
jr r a
2015-01-15 16:11:05 +03:00
sd $ 1 1 , P T _ M P L + ( 5 * 8 ) ( s p ) / * s t o r e M P L 5 * /
octeon_mult_save3_end :
EXPORT( o c t e o n _ m u l t _ s a v e 3 _ e n d )
END( o c t e o n _ m u l t _ s a v e 3 )
2009-01-08 16:46:40 -08:00
.set pop
/ *
* void o c t e o n _ m u l t _ r e s t o r e ( )
* sp i s a s s u m e d t o p o i n t t o a s t r u c t p t _ r e g s
*
2015-01-15 16:11:05 +03:00
* NOTE : This i s c a l l e d i n R E S T O R E _ T E M P i n s t a c k f r a m e . h .
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* /
2015-01-15 16:11:05 +03:00
.p2align 7
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.set push
.set noreorder
LEAF( o c t e o n _ m u l t _ r e s t o r e )
2015-01-15 16:11:05 +03:00
jr r a
nop
.space 30 * 4 , 0
octeon_mult_restore_end :
EXPORT( o c t e o n _ m u l t _ r e s t o r e _ e n d )
END( o c t e o n _ m u l t _ r e s t o r e )
2009-01-08 16:46:40 -08:00
2015-01-15 16:11:05 +03:00
LEAF( o c t e o n _ m u l t _ r e s t o r e 2 )
ld v0 , P T _ M P L ( s p ) / * M P L 0 * /
ld v1 , P T _ M P L + 8 ( s p ) / * M P L 1 * /
ld k 0 , P T _ M P L + 1 6 ( s p ) / * M P L 2 * /
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/* Restore the multiplier state */
2015-01-15 16:11:05 +03:00
ld k 1 , P T _ M T P + 1 6 ( s p ) / * P 2 * /
mtm0 v0 / * M P L 0 * /
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ld v0 , P T _ M T P + 8 ( s p ) / * P 1 * /
2015-01-15 16:11:05 +03:00
mtm1 v1 / * M P L 1 * /
ld v1 , P T _ M T P ( s p ) / * P 0 * /
mtm2 k 0 / * M P L 2 * /
mtp2 k 1 / * P 2 * /
mtp1 v0 / * P 1 * /
2009-01-08 16:46:40 -08:00
jr r a
2015-01-15 16:11:05 +03:00
mtp0 v1 / * P 0 * /
octeon_mult_restore2_end :
EXPORT( o c t e o n _ m u l t _ r e s t o r e 2 _ e n d )
END( o c t e o n _ m u l t _ r e s t o r e 2 )
LEAF( o c t e o n _ m u l t _ r e s t o r e 3 )
ld $ 1 2 , P T _ M P L + ( 0 * 8 ) ( s p ) / * r e a d M P L 0 * /
ld $ 1 3 , P T _ M P L + ( 3 * 8 ) ( s p ) / * r e a d M P L 3 * /
ld $ 1 0 , P T _ M P L + ( 1 * 8 ) ( s p ) / * r e a d M P L 1 * /
ld $ 1 1 , P T _ M P L + ( 4 * 8 ) ( s p ) / * r e a d M P L 4 * /
.word 0x718d0008
/* mtm0 $12, $13 restore MPL0 and MPL3 */
ld $ 1 2 , P T _ M P L + ( 2 * 8 ) ( s p ) / * r e a d M P L 2 * /
.word 0x714b000c
/* mtm1 $10, $11 restore MPL1 and MPL4 */
ld $ 1 3 , P T _ M P L + ( 5 * 8 ) ( s p ) / * r e a d M P L 5 * /
ld $ 1 0 , P T _ M T P + ( 0 * 8 ) ( s p ) / * r e a d P 0 * /
ld $ 1 1 , P T _ M T P + ( 3 * 8 ) ( s p ) / * r e a d P 3 * /
.word 0x718d000d
/* mtm2 $12, $13 restore MPL2 and MPL5 */
ld $ 1 2 , P T _ M T P + ( 1 * 8 ) ( s p ) / * r e a d P 1 * /
.word 0x714b0009
/* mtp0 $10, $11 restore P0 and P3 */
ld $ 1 3 , P T _ M T P + ( 4 * 8 ) ( s p ) / * r e a d P 4 * /
ld $ 1 0 , P T _ M T P + ( 2 * 8 ) ( s p ) / * r e a d P 2 * /
ld $ 1 1 , P T _ M T P + ( 5 * 8 ) ( s p ) / * r e a d P 5 * /
.word 0x718d000a
/* mtp1 $12, $13 restore P1 and P4 */
2009-01-08 16:46:40 -08:00
jr r a
2015-01-15 16:11:05 +03:00
.word 0x714b000b
/* mtp2 $10, $11 restore P2 and P5 */
octeon_mult_restore3_end :
EXPORT( o c t e o n _ m u l t _ r e s t o r e 3 _ e n d )
END( o c t e o n _ m u l t _ r e s t o r e 3 )
2009-01-08 16:46:40 -08:00
.set pop
