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heicarstMartin Schwidefsky
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s390: remove SALIPL loader
There is no known user, therefore remove the code. Acked-by: Rob Van Der Heij <[email protected]> Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
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arch/s390/kernel/head.S

Lines changed: 8 additions & 79 deletions
Original file line numberDiff line numberDiff line change
@@ -60,19 +60,6 @@ __HEAD
6060
.long 0x020006e0,0x20000050
6161

6262
.org 0x200
63-
#
64-
# subroutine to set architecture mode
65-
#
66-
.Lsetmode:
67-
mvi __LC_AR_MODE_ID,1 # set esame flag
68-
slr %r0,%r0 # set cpuid to zero
69-
lhi %r1,2 # mode 2 = esame (dump)
70-
sigp %r1,%r0,0x12 # switch to esame mode
71-
bras %r13,0f
72-
.fill 16,4,0x0
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0: lmh %r0,%r15,0(%r13) # clear high-order half of gprs
74-
sam31 # switch to 31 bit addressing mode
75-
br %r14
7663

7764
#
7865
# subroutine to wait for end I/O
@@ -160,7 +147,14 @@ __HEAD
160147
.long 0x02200050,0x00000000
161148

162149
iplstart:
163-
bas %r14,.Lsetmode # Immediately switch to 64 bit mode
150+
mvi __LC_AR_MODE_ID,1 # set esame flag
151+
slr %r0,%r0 # set cpuid to zero
152+
lhi %r1,2 # mode 2 = esame (dump)
153+
sigp %r1,%r0,0x12 # switch to esame mode
154+
bras %r13,0f
155+
.fill 16,4,0x0
156+
0: lmh %r0,%r15,0(%r13) # clear high-order half of gprs
157+
sam31 # switch to 31 bit addressing mode
164158
lh %r1,0xb8 # test if subchannel number
165159
bct %r1,.Lnoload # is valid
166160
l %r1,0xb8 # load ipl subchannel number
@@ -269,71 +263,6 @@ iplstart:
269263
.align 8
270264
.Lcpuid:.fill 8,1,0
271265

272-
#
273-
# SALIPL loader support. Based on a patch by Rob van der Heij.
274-
# This entry point is called directly from the SALIPL loader and
275-
# doesn't need a builtin ipl record.
276-
#
277-
.org 0x800
278-
ENTRY(start)
279-
stm %r0,%r15,0x07b0 # store registers
280-
bas %r14,.Lsetmode # Immediately switch to 64 bit mode
281-
basr %r12,%r0
282-
.base:
283-
l %r11,.parm
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l %r8,.cmd # pointer to command buffer
285-
286-
ltr %r9,%r9 # do we have SALIPL parameters?
287-
bp .sk8x8
288-
289-
mvc 0(64,%r8),0x00b0 # copy saved registers
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xc 64(240-64,%r8),0(%r8) # remainder of buffer
291-
tr 0(64,%r8),.lowcase
292-
b .gotr
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.sk8x8:
294-
mvc 0(240,%r8),0(%r9) # copy iplparms into buffer
295-
.gotr:
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slr %r0,%r0
297-
st %r0,INITRD_SIZE+ARCH_OFFSET-PARMAREA(%r11)
298-
st %r0,INITRD_START+ARCH_OFFSET-PARMAREA(%r11)
299-
j startup # continue with startup
300-
.cmd: .long COMMAND_LINE # address of command line buffer
301-
.parm: .long PARMAREA
302-
.lowcase:
303-
.byte 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07
304-
.byte 0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f
305-
.byte 0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17
306-
.byte 0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f
307-
.byte 0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27
308-
.byte 0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f
309-
.byte 0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37
310-
.byte 0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f
311-
.byte 0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47
312-
.byte 0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f
313-
.byte 0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57
314-
.byte 0x58,0x59,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f
315-
.byte 0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67
316-
.byte 0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f
317-
.byte 0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77
318-
.byte 0x78,0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7f
319-
320-
.byte 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87
321-
.byte 0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f
322-
.byte 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97
323-
.byte 0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f
324-
.byte 0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7
325-
.byte 0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf
326-
.byte 0xb0,0xb1,0xb2,0xb3,0xb4,0xb5,0xb6,0xb7
327-
.byte 0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0xbe,0xbf
328-
.byte 0xc0,0x81,0x82,0x83,0x84,0x85,0x86,0x87 # .abcdefg
329-
.byte 0x88,0x89,0xca,0xcb,0xcc,0xcd,0xce,0xcf # hi
330-
.byte 0xd0,0x91,0x92,0x93,0x94,0x95,0x96,0x97 # .jklmnop
331-
.byte 0x98,0x99,0xda,0xdb,0xdc,0xdd,0xde,0xdf # qr
332-
.byte 0xe0,0xe1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7 # ..stuvwx
333-
.byte 0xa8,0xa9,0xea,0xeb,0xec,0xed,0xee,0xef # yz
334-
.byte 0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7
335-
.byte 0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff
336-
337266
#
338267
# startup-code at 0x10000, running in absolute addressing mode
339268
# this is called either by the ipl loader or directly by PSW restart

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