FreeCalypso > hg > freecalypso-sw

annotate gsm-fw/sysglue/exceptions.S @ 929:ad6f1504465d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
l1_{dis,en}able_dsp_trace functions: breakage-causing LoCosto-ism fixed
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Sat, 24 Oct 2015 06:54:08 +0000
parents f05ae34f7ca0
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
312
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
1 /*
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
2 * This module contains ARM exception handlers which used to be
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
3 * in chipsetsw/system/Main/int.s in TI's Leonardo code.
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
4 */
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
5
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
6 .section "except_stack","aw",%nobits
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
7 .balign 4
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
8 .space 512
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
9 .globl _Except_Stack_SP
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
10 _Except_Stack_SP:
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
11
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
12 .text
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
13 .code 32
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
14
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
15 @ layout of xdump buffer:
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
16 @ struct xdump_s {
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
17 @ long registers[16] // svc mode registers
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
18 @ long cpsr // svc mode CPSR
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
19 @ long exception // magic word + index of vector taken
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
20 @ long stack[20] // bottom 20 words of usr mode stack
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
21 @ }
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
22
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
23 .globl _arm_undefined
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
24 _arm_undefined:
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
25 @ store r12 for Xdump_buffer pointer, r11 for index
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
26 stmfd r13!,{r11,r12}
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
27 mov r11,#1
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
28 b save_regs
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
29
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
30 .globl _arm_swi
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
31 _arm_swi:
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
32 @ store r12 for Xdump_buffer pointer, r11 for index
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
33 stmfd r13!,{r11,r12}
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
34 mov r11,#2
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
35 b save_regs
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
36
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
37 .globl _arm_abort_prefetch
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
38 _arm_abort_prefetch:
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
39 @ store r12 for Xdump_buffer pointer, r11 for index
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
40 stmfd r13!,{r11,r12}
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
41 mov r11,#3
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
42 b save_regs
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
43
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
44 .globl _arm_abort_data
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
45 _arm_abort_data:
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
46 @ store r12 for Xdump_buffer pointer, r11 for index
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
47 stmfd r13!,{r11,r12}
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
48 mov r11,#4
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
49 b save_regs
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
50
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
51 .globl _arm_reserved
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
52 _arm_reserved:
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
53 ldr r13,=_Except_Stack_SP @ mode unknown
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
54 @ store r12 for Xdump_buffer pointer, r11 for index
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
55 stmfd r13!,{r11,r12}
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
56 mov r11,#5
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
57 b save_regs
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
58
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
59 save_regs:
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
60 ldr r12,=xdump_buffer
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
61 str r14,[r12,#4*15] @ save r14_abt (original PC) into r15 slot
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
62
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
63 stmia r12,{r0-r10} @ save unbanked registers (except r11 and r12)
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
64 ldmfd r13!,{r0,r1} @ get original r11 and r12
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
65 str r0,[r12,#4*11] @ save original r11
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
66 str r1,[r12,#4*12] @ save original r12
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
67 mrs r0,spsr @ get original psr
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
68 str r0,[r12,#4*16] @ save original cpsr
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
69
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
70 mrs r1,cpsr @ save mode psr
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
71 bic r2,r1,#0x1f @ psr with mode bits cleared
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
72 and r0,r0,#0x1f @ get original mode bits
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
73 add r0,r0,r2
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
74
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
75 msr cpsr,r0 @ move to pre-exception mode
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
76 str r13,[r12,#4*13] @ save original SP
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
77 str r14,[r12,#4*14] @ save original LR
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
78 msr cpsr,r1 @ restore mode psr
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
79
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
80 @ r11 has original index
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
81 orr r10,r11,#0xDE<<24 @ r10 = 0xDEAD0000 + index of vector taken
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
82 orr r10,r10,#0xAD<<16
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
83 str r10,[r12,#4*17] @ save magic + index
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
84
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
85 mov r0,r11 @ put index into 1st argument
f05ae34f7ca0 gsm-fw: ARM exception vectors hooked in
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
86 b dar_exception