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https://github.com/joel16/android_kernel_sony_msm8994_rework.git
synced 2024-12-29 07:44:24 +00:00
[MIPS] TRACE_IRQFLAGS_SUPPORT support.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
parent
8d197f3d17
commit
192ef36619
@ -1,5 +1,9 @@
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menu "Kernel hacking"
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config TRACE_IRQFLAGS_SUPPORT
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bool
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default y
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source "lib/Kconfig.debug"
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config CROSSCOMPILE
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@ -113,6 +113,21 @@ FEXPORT(restore_all) # restore full frame
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RESTORE_AT
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RESTORE_STATIC
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FEXPORT(restore_partial) # restore partial frame
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#ifdef CONFIG_TRACE_IRQFLAGS
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SAVE_STATIC
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SAVE_AT
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SAVE_TEMP
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LONG_L v0, PT_STATUS(sp)
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and v0, 1
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beqz v0, 1f
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jal trace_hardirqs_on
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b 2f
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1: jal trace_hardirqs_off
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2:
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RESTORE_TEMP
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RESTORE_AT
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RESTORE_STATIC
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#endif
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RESTORE_SOME
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RESTORE_SP_AND_RET
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.set at
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@ -7,6 +7,7 @@
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#include <asm/asm.h>
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#include <asm/errno.h>
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#include <asm/irqflags.h>
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#include <asm/mipsregs.h>
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#include <asm/regdef.h>
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#include <asm/stackframe.h>
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@ -120,6 +121,7 @@
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LONG_S $31, GDB_FR_REG31(sp)
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CLI /* disable interrupts */
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TRACE_IRQS_OFF
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/*
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* Followed by the floating point registers
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@ -13,6 +13,7 @@
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#include <asm/asm.h>
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#include <asm/asmmacro.h>
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#include <asm/cacheops.h>
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#include <asm/irqflags.h>
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#include <asm/regdef.h>
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#include <asm/fpregdef.h>
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#include <asm/mipsregs.h>
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@ -128,6 +129,7 @@ handle_vcei:
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NESTED(handle_int, PT_SIZE, sp)
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SAVE_ALL
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CLI
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TRACE_IRQS_OFF
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PTR_LA ra, ret_from_irq
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move a0, sp
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@ -216,6 +218,7 @@ NESTED(except_vec_vi_handler, 0, sp)
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_ehb
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#endif /* CONFIG_MIPS_MT_SMTC */
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CLI
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TRACE_IRQS_OFF
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move a0, sp
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jalr v0
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j ret_from_irq
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@ -288,11 +291,13 @@ NESTED(nmi_handler, PT_SIZE, sp)
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.endm
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.macro __build_clear_sti
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TRACE_IRQS_ON
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STI
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.endm
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.macro __build_clear_cli
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CLI
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TRACE_IRQS_OFF
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.endm
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.macro __build_clear_fpe
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@ -300,6 +305,7 @@ NESTED(nmi_handler, PT_SIZE, sp)
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li a2, ~(0x3f << 12)
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and a2, a1
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ctc1 a2, fcr31
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TRACE_IRQS_ON
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STI
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.endm
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@ -5,7 +5,7 @@
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*
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* Copyright (C) 1994, 1995 Waldorf Electronics
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* Written by Ralf Baechle and Andreas Busse
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* Copyright (C) 1994, 95, 96, 97, 98, 99, 2003 Ralf Baechle
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* Copyright (C) 1994 - 99, 2003, 06 Ralf Baechle
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* Copyright (C) 1996 Paul M. Antoine
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* Modified for DECStation and hence R3000 support by Paul M. Antoine
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* Further modifications by David S. Miller and Harald Koerfgen
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@ -18,6 +18,7 @@
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#include <asm/asm.h>
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#include <asm/asmmacro.h>
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#include <asm/irqflags.h>
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#include <asm/regdef.h>
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#include <asm/page.h>
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#include <asm/mipsregs.h>
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@ -3,13 +3,14 @@
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1995, 96, 97, 98, 99, 2000, 01, 02 by Ralf Baechle
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* Copyright (C) 1995-99, 2000- 02, 06 Ralf Baechle <ralf@linux-mips.org>
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* Copyright (C) 2001 MIPS Technologies, Inc.
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* Copyright (C) 2004 Thiemo Seufer
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*/
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#include <linux/errno.h>
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#include <asm/asm.h>
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#include <asm/asmmacro.h>
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#include <asm/irqflags.h>
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#include <asm/mipsregs.h>
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#include <asm/regdef.h>
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#include <asm/stackframe.h>
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@ -27,6 +28,18 @@
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NESTED(handle_sys, PT_SIZE, sp)
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.set noat
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SAVE_SOME
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#ifdef CONFIG_TRACE_IRQFLAGS
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TRACE_IRQS_ON
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#ifdef CONFIG_64BIT
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LONG_L $8, PT_R8(sp)
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LONG_L $9, PT_R9(sp)
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#endif
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LONG_L $7, PT_R7(sp)
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LONG_L $6, PT_R6(sp)
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LONG_L $5, PT_R5(sp)
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LONG_L $4, PT_R4(sp)
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LONG_L $2, PT_R2(sp)
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#endif
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STI
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.set at
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@ -10,6 +10,7 @@
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#include <linux/errno.h>
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#include <asm/asm.h>
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#include <asm/asmmacro.h>
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#include <asm/irqflags.h>
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#include <asm/mipsregs.h>
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#include <asm/regdef.h>
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#include <asm/stackframe.h>
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@ -33,6 +34,7 @@ NESTED(handle_sys64, PT_SIZE, sp)
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*/
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.set noat
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SAVE_SOME
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TRACE_IRQS_ON
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STI
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.set at
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#endif
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@ -10,6 +10,7 @@
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#include <linux/errno.h>
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#include <asm/asm.h>
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#include <asm/asmmacro.h>
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#include <asm/irqflags.h>
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#include <asm/mipsregs.h>
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#include <asm/regdef.h>
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#include <asm/stackframe.h>
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@ -32,6 +33,7 @@ NESTED(handle_sysn32, PT_SIZE, sp)
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#ifndef CONFIG_MIPS32_O32
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.set noat
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SAVE_SOME
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TRACE_IRQS_ON
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STI
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.set at
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#endif
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@ -16,6 +16,7 @@
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#include <linux/errno.h>
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#include <asm/asm.h>
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#include <asm/asmmacro.h>
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#include <asm/irqflags.h>
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#include <asm/mipsregs.h>
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#include <asm/regdef.h>
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#include <asm/stackframe.h>
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@ -27,6 +28,7 @@
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NESTED(handle_sys, PT_SIZE, sp)
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.set noat
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SAVE_SOME
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TRACE_IRQS_ON
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STI
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.set at
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ld t1, PT_EPC(sp) # skip syscall on return
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@ -96,6 +96,7 @@ FEXPORT(__smtc_ipi_vector)
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/* Save all will redundantly recompute the SP, but use it for now */
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SAVE_ALL
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CLI
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TRACE_IRQS_OFF
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move a0,sp
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/* Function to be invoked passed stack pad slot 5 */
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lw t0,PT_PADSLOT5(sp)
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@ -22,8 +22,8 @@
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#ifndef _ASM_ATOMIC_H
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#define _ASM_ATOMIC_H
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#include <linux/irqflags.h>
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#include <asm/cpu-features.h>
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#include <asm/interrupt.h>
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#include <asm/war.h>
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typedef struct { volatile int counter; } atomic_t;
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@ -31,7 +31,7 @@
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#ifdef __KERNEL__
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#include <asm/interrupt.h>
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#include <linux/irqflags.h>
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#include <asm/sgidefs.h>
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#include <asm/war.h>
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@ -8,13 +8,15 @@
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* Copyright (C) 1999 Silicon Graphics
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* Copyright (C) 2000 MIPS Technologies, Inc.
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*/
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#ifndef _ASM_INTERRUPT_H
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#define _ASM_INTERRUPT_H
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#ifndef _ASM_IRQFLAGS_H
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#define _ASM_IRQFLAGS_H
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#ifndef __ASSEMBLY__
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#include <asm/hazards.h>
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__asm__ (
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" .macro local_irq_enable \n"
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" .macro raw_local_irq_enable \n"
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" .set push \n"
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" .set reorder \n"
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" .set noat \n"
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@ -35,10 +37,10 @@ __asm__ (
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" .set pop \n"
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" .endm");
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static inline void local_irq_enable(void)
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static inline void raw_local_irq_enable(void)
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{
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__asm__ __volatile__(
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"local_irq_enable"
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"raw_local_irq_enable"
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: /* no outputs */
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: /* no inputs */
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: "memory");
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@ -63,7 +65,7 @@ static inline void local_irq_enable(void)
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* Workaround: mask EXL bit of the result or place a nop before mfc0.
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*/
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__asm__ (
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" .macro local_irq_disable\n"
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" .macro raw_local_irq_disable\n"
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" .set push \n"
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" .set noat \n"
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#ifdef CONFIG_MIPS_MT_SMTC
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@ -84,17 +86,17 @@ __asm__ (
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" .set pop \n"
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" .endm \n");
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static inline void local_irq_disable(void)
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static inline void raw_local_irq_disable(void)
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{
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__asm__ __volatile__(
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"local_irq_disable"
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"raw_local_irq_disable"
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: /* no outputs */
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: /* no inputs */
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: "memory");
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}
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__asm__ (
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" .macro local_save_flags flags \n"
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" .macro raw_local_save_flags flags \n"
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" .set push \n"
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" .set reorder \n"
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#ifdef CONFIG_MIPS_MT_SMTC
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@ -105,13 +107,13 @@ __asm__ (
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" .set pop \n"
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" .endm \n");
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#define local_save_flags(x) \
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#define raw_local_save_flags(x) \
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__asm__ __volatile__( \
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"local_save_flags %0" \
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"raw_local_save_flags %0" \
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: "=r" (x))
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__asm__ (
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" .macro local_irq_save result \n"
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" .macro raw_local_irq_save result \n"
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" .set push \n"
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" .set reorder \n"
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" .set noat \n"
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@ -135,15 +137,15 @@ __asm__ (
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" .set pop \n"
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" .endm \n");
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#define local_irq_save(x) \
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#define raw_local_irq_save(x) \
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__asm__ __volatile__( \
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"local_irq_save\t%0" \
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"raw_local_irq_save\t%0" \
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: "=r" (x) \
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: /* no inputs */ \
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: "memory")
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__asm__ (
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" .macro local_irq_restore flags \n"
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" .macro raw_local_irq_restore flags \n"
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" .set push \n"
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" .set noreorder \n"
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" .set noat \n"
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@ -182,40 +184,42 @@ __asm__ (
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" .set pop \n"
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" .endm \n");
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#define local_irq_restore(flags) \
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#define raw_local_irq_restore(flags) \
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do { \
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unsigned long __tmp1; \
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\
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__asm__ __volatile__( \
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"local_irq_restore\t%0" \
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"raw_local_irq_restore\t%0" \
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: "=r" (__tmp1) \
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: "0" (flags) \
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: "memory"); \
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} while(0)
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static inline int irqs_disabled(void)
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static inline int raw_irqs_disabled_flags(unsigned long flags)
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{
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#ifdef CONFIG_MIPS_MT_SMTC
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/*
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* SMTC model uses TCStatus.IXMT to disable interrupts for a thread/CPU
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*/
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unsigned long __result;
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__asm__ __volatile__(
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" .set noreorder \n"
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" mfc0 %0, $2, 1 \n"
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" andi %0, 0x400 \n"
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" slt %0, $0, %0 \n"
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" .set reorder \n"
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: "=r" (__result));
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return __result;
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return flags & 0x400;
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#else
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unsigned long flags;
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local_save_flags(flags);
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return !(flags & 1);
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#endif
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}
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#endif /* _ASM_INTERRUPT_H */
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#endif
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/*
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* Do the CPU's IRQ-state tracing from assembly code.
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*/
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#ifdef CONFIG_TRACE_IRQFLAGS
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# define TRACE_IRQS_ON \
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jal trace_hardirqs_on
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# define TRACE_IRQS_OFF \
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jal trace_hardirqs_off
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#else
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# define TRACE_IRQS_ON
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# define TRACE_IRQS_OFF
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#endif
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#endif /* _ASM_IRQFLAGS_H */
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@ -1417,7 +1417,7 @@ change_c0_##name(unsigned int change, unsigned int new) \
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#else /* SMTC versions that manage MT scheduling */
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#include <asm/interrupt.h>
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#include <linux/irqflags.h>
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/*
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* This is a duplicate of dmt() in mipsmtregs.h to avoid problems with
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@ -13,13 +13,13 @@
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#define _ASM_SYSTEM_H
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#include <linux/types.h>
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#include <linux/irqflags.h>
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#include <asm/addrspace.h>
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#include <asm/cpu-features.h>
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#include <asm/dsp.h>
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#include <asm/ptrace.h>
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#include <asm/war.h>
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#include <asm/interrupt.h>
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/*
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* read_barrier_depends - Flush all pending reads that subsequents reads
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