lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[MIPS] TRACE_IRQFLAGS_SUPPORT support.

Browse Source 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
2006-07-07 14:07:18 +01:00
parent 8d197f3d17
commit 192ef36619
15 changed files with 91 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
arch/mips/kernel/entry.S
View File

@@ -113,6 +113,21 @@ FEXPORT(restore_all) # restore full frame
RESTORE_AT
RESTORE_STATIC
FEXPORT(restore_partial) # restore partial frame
#ifdef CONFIG_TRACE_IRQFLAGS
SAVE_STATIC
SAVE_AT
SAVE_TEMP
LONG_L v0, PT_STATUS(sp)
and v0, 1
beqz v0, 1f
jal trace_hardirqs_on
b 2f
1: jal trace_hardirqs_off
2:
RESTORE_TEMP
RESTORE_AT
RESTORE_STATIC
#endif
RESTORE_SOME
RESTORE_SP_AND_RET
.set at

2
arch/mips/kernel/gdb-low.S
View File

@@ -7,6 +7,7 @@
#include <asm/asm.h>
#include <asm/errno.h>
#include <asm/irqflags.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>
#include <asm/stackframe.h>
@@ -120,6 +121,7 @@
LONG_S $31, GDB_FR_REG31(sp)
CLI /* disable interrupts */
TRACE_IRQS_OFF
/*
* Followed by the floating point registers

6
arch/mips/kernel/genex.S
View File

@@ -13,6 +13,7 @@
#include <asm/asm.h>
#include <asm/asmmacro.h>
#include <asm/cacheops.h>
#include <asm/irqflags.h>
#include <asm/regdef.h>
#include <asm/fpregdef.h>
#include <asm/mipsregs.h>
@@ -128,6 +129,7 @@ handle_vcei:
NESTED(handle_int, PT_SIZE, sp)
SAVE_ALL
CLI
TRACE_IRQS_OFF
PTR_LA ra, ret_from_irq
move a0, sp
@@ -216,6 +218,7 @@ NESTED(except_vec_vi_handler, 0, sp)
_ehb
#endif /* CONFIG_MIPS_MT_SMTC */
CLI
TRACE_IRQS_OFF
move a0, sp
jalr v0
j ret_from_irq
@@ -288,11 +291,13 @@ NESTED(nmi_handler, PT_SIZE, sp)
.endm
.macro __build_clear_sti
TRACE_IRQS_ON
STI
.endm
.macro __build_clear_cli
CLI
TRACE_IRQS_OFF
.endm
.macro __build_clear_fpe
@@ -300,6 +305,7 @@ NESTED(nmi_handler, PT_SIZE, sp)
li a2, ~(0x3f << 12)
and a2, a1
ctc1 a2, fcr31
TRACE_IRQS_ON
STI
.endm

3
arch/mips/kernel/head.S
View File

@@ -5,7 +5,7 @@
*
* Copyright (C) 1994, 1995 Waldorf Electronics
* Written by Ralf Baechle and Andreas Busse
* Copyright (C) 1994, 95, 96, 97, 98, 99, 2003 Ralf Baechle
* Copyright (C) 1994 - 99, 2003, 06 Ralf Baechle
* Copyright (C) 1996 Paul M. Antoine
* Modified for DECStation and hence R3000 support by Paul M. Antoine
* Further modifications by David S. Miller and Harald Koerfgen
@@ -18,6 +18,7 @@
#include <asm/asm.h>
#include <asm/asmmacro.h>
#include <asm/irqflags.h>
#include <asm/regdef.h>
#include <asm/page.h>
#include <asm/mipsregs.h>

15
arch/mips/kernel/scall32-o32.S
View File

@@ -3,13 +3,14 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1995, 96, 97, 98, 99, 2000, 01, 02 by Ralf Baechle
* Copyright (C) 1995-99, 2000- 02, 06 Ralf Baechle <ralf@linux-mips.org>
* Copyright (C) 2001 MIPS Technologies, Inc.
* Copyright (C) 2004 Thiemo Seufer
*/
#include <linux/errno.h>
#include <asm/asm.h>
#include <asm/asmmacro.h>
#include <asm/irqflags.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>
#include <asm/stackframe.h>
@@ -27,6 +28,18 @@
NESTED(handle_sys, PT_SIZE, sp)
.set noat
SAVE_SOME
#ifdef CONFIG_TRACE_IRQFLAGS
TRACE_IRQS_ON
#ifdef CONFIG_64BIT
LONG_L $8, PT_R8(sp)
LONG_L $9, PT_R9(sp)
#endif
LONG_L $7, PT_R7(sp)
LONG_L $6, PT_R6(sp)
LONG_L $5, PT_R5(sp)
LONG_L $4, PT_R4(sp)
LONG_L $2, PT_R2(sp)
#endif
STI
.set at

2
arch/mips/kernel/scall64-64.S
View File

@@ -10,6 +10,7 @@
#include <linux/errno.h>
#include <asm/asm.h>
#include <asm/asmmacro.h>
#include <asm/irqflags.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>
#include <asm/stackframe.h>
@@ -33,6 +34,7 @@ NESTED(handle_sys64, PT_SIZE, sp)
*/
.set noat
SAVE_SOME
TRACE_IRQS_ON
STI
.set at
#endif

2
arch/mips/kernel/scall64-n32.S
View File

@@ -10,6 +10,7 @@
#include <linux/errno.h>
#include <asm/asm.h>
#include <asm/asmmacro.h>
#include <asm/irqflags.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>
#include <asm/stackframe.h>
@@ -32,6 +33,7 @@ NESTED(handle_sysn32, PT_SIZE, sp)
#ifndef CONFIG_MIPS32_O32
.set noat
SAVE_SOME
TRACE_IRQS_ON
STI
.set at
#endif

2
arch/mips/kernel/scall64-o32.S
View File

@@ -16,6 +16,7 @@
#include <linux/errno.h>
#include <asm/asm.h>
#include <asm/asmmacro.h>
#include <asm/irqflags.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>
#include <asm/stackframe.h>
@@ -27,6 +28,7 @@
NESTED(handle_sys, PT_SIZE, sp)
.set noat
SAVE_SOME
TRACE_IRQS_ON
STI
.set at
ld t1, PT_EPC(sp) # skip syscall on return

1
arch/mips/kernel/smtc-asm.S
View File

@@ -96,6 +96,7 @@ FEXPORT(__smtc_ipi_vector)
/* Save all will redundantly recompute the SP, but use it for now */
SAVE_ALL
CLI
TRACE_IRQS_OFF
move a0,sp
/* Function to be invoked passed stack pad slot 5 */
lw t0,PT_PADSLOT5(sp)