1 files changed, 0 insertions, 118 deletions
diff --git a/arch/mips/sgi-ip22/ip22-irq.S b/arch/mips/sgi-ip22/ip22-irq.S
deleted file mode 100644
index 6ccbd9e1d967..000000000000
--- a/arch/mips/sgi-ip22/ip22-irq.S
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * ip22-irq.S: Interrupt exception dispatch code for FullHouse and
- *             Guiness.
- *
- * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
- */
-#include <asm/asm.h>
-#include <asm/mipsregs.h>
-#include <asm/regdef.h>
-#include <asm/stackframe.h>
-/* A lot of complication here is taken away because:
- *
- * 1) We handle one interrupt and return, sitting in a loop and moving across
- *    all the pending IRQ bits in the cause register is _NOT_ the answer, the
- *    common case is one pending IRQ so optimize in that direction.
- *
- * 2) We need not check against bits in the status register IRQ mask, that
- *    would make this routine slow as hell.
- *
- * 3) Linux only thinks in terms of all IRQs on or all IRQs off, nothing in
- *    between like BSD spl() brain-damage.
- *
- * Furthermore, the IRQs on the INDY look basically (barring software IRQs
- * which we don't use at all) like:
- *
- *      MIPS IRQ        Source
- *      --------        ------
- *             0        Software (ignored)
- *             1        Software (ignored)
- *             2        Local IRQ level zero
- *             3        Local IRQ level one
- *             4        8254 Timer zero
- *             5        8254 Timer one
- *             6        Bus Error
- *             7        R4k timer (what we use)
- *
- * We handle the IRQ according to _our_ priority which is:
- *
- * Highest ----     R4k Timer
- *                  Local IRQ zero
- *                  Local IRQ one
- *                  Bus Error
- *                  8254 Timer zero
- * Lowest  ----     8254 Timer one
- *
- * then we just return, if multiple IRQs are pending then we will just take
- * another exception, big deal.
- */
-        .text
-        .set    noreorder
-        .set    noat
-        .align  5
-        NESTED(indyIRQ, PT_SIZE, sp)
-        SAVE_ALL
-        CLI
-        .set    at
-        mfc0    s0, CP0_CAUSE           # get irq mask
-        /* First we check for r4k counter/timer IRQ. */
-        andi    a0, s0, CAUSEF_IP7
-        beq     a0, zero, 1f
-         andi   a0, s0, CAUSEF_IP2      # delay slot, check local level zero
-        /* Wheee, a timer interrupt. */
-        jal     indy_r4k_timer_interrupt
-         move   a0, sp                  # delay slot
-        j       ret_from_irq
-         nop                            # delay slot
-1:
-        beq     a0, zero, 1f
-         andi   a0, s0, CAUSEF_IP3      # delay slot, check local level one
-        /* Wheee, local level zero interrupt. */
-        jal     indy_local0_irqdispatch
-         move   a0, sp                  # delay slot
-        j       ret_from_irq
-         nop                            # delay slot
-1:
-        beq     a0, zero, 1f
-         andi   a0, s0, CAUSEF_IP6      # delay slot, check bus error
-        /* Wheee, local level one interrupt. */
-        jal     indy_local1_irqdispatch
-         move   a0, sp                  # delay slot
-        j       ret_from_irq
-         nop                            # delay slot
-1:
-        beq     a0, zero, 1f
-         andi   a0, s0, (CAUSEF_IP4 | CAUSEF_IP5)       # delay slot
-        /* Wheee, an asynchronous bus error... */
-        jal     indy_buserror_irq
-         move   a0, sp                  # delay slot
-        j       ret_from_irq
-         nop                            # delay slot
-1:
-        /* Here by mistake? It is possible, that by the time we take
-         * the exception the IRQ pin goes low, so just leave if this
-         * is the case.
-         */
-        beq     a0, zero, 1f
-         nop                            # delay slot
-        /* Must be one of the 8254 timers... */
-        jal     indy_8254timer_irq
-         move   a0, sp                  # delay slot
-1:
-        j       ret_from_irq
-         nop                            # delay slot
-        END(indyIRQ)

diff --git a/arch/mips/sgi-ip22/ip22-irq.S b/arch/mips/sgi-ip22/ip22-irq.S deleted file mode 100644 index 6ccbd9e1d967..000000000000 --- a/arch/mips/sgi-ip22/ip22-irq.S +++ /dev/null
@@ -1,118 +0,0 @@
1	/*
2	* ip22-irq.S: Interrupt exception dispatch code for FullHouse and
3	* Guiness.
4	*
5	* Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
6	*/
7
8	#include <asm/asm.h>
9	#include <asm/mipsregs.h>
10	#include <asm/regdef.h>
11	#include <asm/stackframe.h>
12
13	/* A lot of complication here is taken away because:
14	*
15	* 1) We handle one interrupt and return, sitting in a loop and moving across
16	* all the pending IRQ bits in the cause register is _NOT_ the answer, the
17	* common case is one pending IRQ so optimize in that direction.
18	*
19	* 2) We need not check against bits in the status register IRQ mask, that
20	* would make this routine slow as hell.
21	*
22	* 3) Linux only thinks in terms of all IRQs on or all IRQs off, nothing in
23	* between like BSD spl() brain-damage.
24	*
25	* Furthermore, the IRQs on the INDY look basically (barring software IRQs
26	* which we don't use at all) like:
27	*
28	* MIPS IRQ Source
29	* -------- ------
30	* 0 Software (ignored)
31	* 1 Software (ignored)
32	* 2 Local IRQ level zero
33	* 3 Local IRQ level one
34	* 4 8254 Timer zero
35	* 5 8254 Timer one
36	* 6 Bus Error
37	* 7 R4k timer (what we use)
38	*
39	* We handle the IRQ according to _our_ priority which is:
40	*
41	* Highest ---- R4k Timer
42	* Local IRQ zero
43	* Local IRQ one
44	* Bus Error
45	* 8254 Timer zero
46	* Lowest ---- 8254 Timer one
47	*
48	* then we just return, if multiple IRQs are pending then we will just take
49	* another exception, big deal.
50	*/
51
52	.text
53	.set noreorder
54	.set noat
55	.align 5
56	NESTED(indyIRQ, PT_SIZE, sp)
57	SAVE_ALL
58	CLI
59	.set at
60	mfc0 s0, CP0_CAUSE # get irq mask
61
62	/* First we check for r4k counter/timer IRQ. */
63	andi a0, s0, CAUSEF_IP7
64	beq a0, zero, 1f
65	andi a0, s0, CAUSEF_IP2 # delay slot, check local level zero
66
67	/* Wheee, a timer interrupt. */
68	jal indy_r4k_timer_interrupt
69	move a0, sp # delay slot
70	j ret_from_irq
71	nop # delay slot
72
73	1:
74	beq a0, zero, 1f
75	andi a0, s0, CAUSEF_IP3 # delay slot, check local level one
76
77	/* Wheee, local level zero interrupt. */
78	jal indy_local0_irqdispatch
79	move a0, sp # delay slot
80
81	j ret_from_irq
82	nop # delay slot
83
84	1:
85	beq a0, zero, 1f
86	andi a0, s0, CAUSEF_IP6 # delay slot, check bus error
87
88	/* Wheee, local level one interrupt. */
89	jal indy_local1_irqdispatch
90	move a0, sp # delay slot
91	j ret_from_irq
92	nop # delay slot
93
94	1:
95	beq a0, zero, 1f
96	andi a0, s0, (CAUSEF_IP4 \| CAUSEF_IP5) # delay slot
97
98	/* Wheee, an asynchronous bus error... */
99	jal indy_buserror_irq
100	move a0, sp # delay slot
101	j ret_from_irq
102	nop # delay slot
103
104	1:
105	/* Here by mistake? It is possible, that by the time we take
106	* the exception the IRQ pin goes low, so just leave if this
107	* is the case.
108	*/
109	beq a0, zero, 1f
110	nop # delay slot
111
112	/* Must be one of the 8254 timers... */
113	jal indy_8254timer_irq
114	move a0, sp # delay slot
115	1:
116	j ret_from_irq
117	nop # delay slot
118	END(indyIRQ)