From 405f55712dfe464b3240d7816cc4fe4174831be2 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Sat, 11 Jul 2009 22:08:37 +0400 Subject: headers: smp_lock.h redux * Remove smp_lock.h from files which don't need it (including some headers!) * Add smp_lock.h to files which do need it * Make smp_lock.h include conditional in hardirq.h It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT This will make hardirq.h inclusion cheaper for every PREEMPT=n config (which includes allmodconfig/allyesconfig, BTW) Signed-off-by: Alexey Dobriyan Signed-off-by: Linus Torvalds --- arch/mips/kernel/ptrace32.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/mips/kernel') diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c index c4f9ac17474a..32644b4a0714 100644 --- a/arch/mips/kernel/ptrace32.c +++ b/arch/mips/kernel/ptrace32.c @@ -22,7 +22,6 @@ #include #include #include -#include #include #include -- cgit v1.2.3 From 49316cbf0a9875f102f98dc8b7c80cfa142e33cf Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 6 Jul 2009 09:13:17 +0100 Subject: MIPS: Eleminate filenames from comments They tend to get not updated when files are moved around or copied and lack any obvious use. While at it zap some only too obvious comments and as per Shinya's suggestion, add a copyright header to extable.c. Signed-off-by: Ralf Baechle Acked-by: Shinya Kuribayashi Acked-by: Thadeu Lima de Souza Cascardo --- arch/mips/dec/ecc-berr.c | 2 -- arch/mips/dec/int-handler.S | 2 -- arch/mips/dec/ioasic-irq.c | 2 -- arch/mips/dec/kn01-berr.c | 2 -- arch/mips/dec/kn02-irq.c | 2 -- arch/mips/dec/kn02xa-berr.c | 2 -- arch/mips/dec/prom/call_o32.S | 2 -- arch/mips/dec/prom/console.c | 2 -- arch/mips/dec/time.c | 2 -- arch/mips/emma/common/Makefile | 3 --- arch/mips/emma/common/prom.c | 3 --- arch/mips/emma/markeins/Makefile | 3 --- arch/mips/emma/markeins/irq.c | 3 --- arch/mips/emma/markeins/led.c | 3 --- arch/mips/emma/markeins/platform.c | 3 --- arch/mips/emma/markeins/setup.c | 3 --- arch/mips/fw/lib/call_o32.S | 2 -- arch/mips/include/asm/emma/emma2rh.h | 3 --- arch/mips/include/asm/emma/markeins.h | 3 --- arch/mips/kernel/irq_txx9.c | 2 -- arch/mips/kernel/proc.c | 2 -- arch/mips/kernel/stacktrace.c | 2 -- arch/mips/mm/extable.c | 6 +++++- arch/mips/pci/fixup-emma2rh.c | 3 --- arch/mips/pci/fixup-sb1250.c | 2 -- arch/mips/pci/ops-emma2rh.c | 3 --- arch/mips/pci/pci-emma2rh.c | 3 --- arch/mips/pci/pci-tx4927.c | 2 -- arch/mips/pci/pci-tx4938.c | 2 -- arch/mips/pci/pci-tx4939.c | 2 -- arch/mips/pmc-sierra/msp71xx/gpio.c | 2 -- arch/mips/pmc-sierra/msp71xx/gpio_extended.c | 2 -- arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c | 2 -- arch/mips/sibyte/swarm/swarm-i2c.c | 2 -- arch/mips/txx9/generic/mem_tx4927.c | 2 -- arch/mips/txx9/generic/setup.c | 2 -- 36 files changed, 5 insertions(+), 83 deletions(-) (limited to 'arch/mips/kernel') diff --git a/arch/mips/dec/ecc-berr.c b/arch/mips/dec/ecc-berr.c index 6a17c9b508ea..7abce661b90f 100644 --- a/arch/mips/dec/ecc-berr.c +++ b/arch/mips/dec/ecc-berr.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/dec/ecc-berr.c - * * Bus error event handling code for systems equipped with ECC * handling logic, i.e. DECstation/DECsystem 5000/200 (KN02), * 5000/240 (KN03), 5000/260 (KN05) and DECsystem 5900 (KN03), diff --git a/arch/mips/dec/int-handler.S b/arch/mips/dec/int-handler.S index 00cecdcc75f2..82c852818781 100644 --- a/arch/mips/dec/int-handler.S +++ b/arch/mips/dec/int-handler.S @@ -1,6 +1,4 @@ /* - * arch/mips/dec/int-handler.S - * * Copyright (C) 1995, 1996, 1997 Paul M. Antoine and Harald Koerfgen * Copyright (C) 2000, 2001, 2002, 2003, 2005 Maciej W. Rozycki * diff --git a/arch/mips/dec/ioasic-irq.c b/arch/mips/dec/ioasic-irq.c index 3acb133668dc..cb41954fc321 100644 --- a/arch/mips/dec/ioasic-irq.c +++ b/arch/mips/dec/ioasic-irq.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/dec/ioasic-irq.c - * * DEC I/O ASIC interrupts. * * Copyright (c) 2002, 2003 Maciej W. Rozycki diff --git a/arch/mips/dec/kn01-berr.c b/arch/mips/dec/kn01-berr.c index d3b8002bf1e7..b0dc6d53edd6 100644 --- a/arch/mips/dec/kn01-berr.c +++ b/arch/mips/dec/kn01-berr.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/dec/kn01-berr.c - * * Bus error event handling code for DECstation/DECsystem 3100 * and 2100 (KN01) systems equipped with parity error detection * logic. diff --git a/arch/mips/dec/kn02-irq.c b/arch/mips/dec/kn02-irq.c index 02439dc0ba83..ed90a8deabcc 100644 --- a/arch/mips/dec/kn02-irq.c +++ b/arch/mips/dec/kn02-irq.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/dec/kn02-irq.c - * * DECstation 5000/200 (KN02) Control and Status Register * interrupts. * diff --git a/arch/mips/dec/kn02xa-berr.c b/arch/mips/dec/kn02xa-berr.c index 5f04545c3606..07ca5405d48d 100644 --- a/arch/mips/dec/kn02xa-berr.c +++ b/arch/mips/dec/kn02xa-berr.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/dec/kn02xa-berr.c - * * Bus error event handling code for 5000-series systems equipped * with parity error detection logic, i.e. DECstation/DECsystem * 5000/120, /125, /133 (KN02-BA), 5000/150 (KN04-BA) and Personal diff --git a/arch/mips/dec/prom/call_o32.S b/arch/mips/dec/prom/call_o32.S index e523454bda3a..8c8498159e43 100644 --- a/arch/mips/dec/prom/call_o32.S +++ b/arch/mips/dec/prom/call_o32.S @@ -1,6 +1,4 @@ /* - * arch/mips/dec/prom/call_o32.S - * * O32 interface for the 64 (or N32) ABI. * * Copyright (C) 2002 Maciej W. Rozycki diff --git a/arch/mips/dec/prom/console.c b/arch/mips/dec/prom/console.c index 078e1a12421d..caa6e047caf1 100644 --- a/arch/mips/dec/prom/console.c +++ b/arch/mips/dec/prom/console.c @@ -1,6 +1,4 @@ /* - * arch/mips/dec/prom/console.c - * * DECstation PROM-based early console support. * * Copyright (C) 2004, 2007 Maciej W. Rozycki diff --git a/arch/mips/dec/time.c b/arch/mips/dec/time.c index 1359c03ded51..463136e6685a 100644 --- a/arch/mips/dec/time.c +++ b/arch/mips/dec/time.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/dec/time.c - * * Copyright (C) 1991, 1992, 1995 Linus Torvalds * Copyright (C) 2000, 2003 Maciej W. Rozycki * diff --git a/arch/mips/emma/common/Makefile b/arch/mips/emma/common/Makefile index c392d28c1ef1..f27d84d1904f 100644 --- a/arch/mips/emma/common/Makefile +++ b/arch/mips/emma/common/Makefile @@ -1,7 +1,4 @@ # -# arch/mips/emma2rh/common/Makefile -# Makefile for the common code of NEC EMMA2RH based board. -# # Copyright (C) NEC Electronics Corporation 2005-2006 # # This program is free software; you can redistribute it and/or modify diff --git a/arch/mips/emma/common/prom.c b/arch/mips/emma/common/prom.c index 120f53fbdb45..708f08761406 100644 --- a/arch/mips/emma/common/prom.c +++ b/arch/mips/emma/common/prom.c @@ -1,7 +1,4 @@ /* - * arch/mips/emma2rh/common/prom.c - * This file is prom file. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This file is based on the arch/mips/ddb5xxx/common/prom.c diff --git a/arch/mips/emma/markeins/Makefile b/arch/mips/emma/markeins/Makefile index 16e0017ba919..f8ba2508fa2b 100644 --- a/arch/mips/emma/markeins/Makefile +++ b/arch/mips/emma/markeins/Makefile @@ -1,7 +1,4 @@ # -# arch/mips/emma2rh/markeins/Makefile -# Makefile for the common code of NEC EMMA2RH based board. -# # Copyright (C) NEC Electronics Corporation 2005-2006 # # This program is free software; you can redistribute it and/or modify diff --git a/arch/mips/emma/markeins/irq.c b/arch/mips/emma/markeins/irq.c index 43828ae796ec..9504b7ee0b7c 100644 --- a/arch/mips/emma/markeins/irq.c +++ b/arch/mips/emma/markeins/irq.c @@ -1,7 +1,4 @@ /* - * arch/mips/emma2rh/markeins/irq.c - * This file defines the irq handler for EMMA2RH. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This file is based on the arch/mips/ddb5xxx/ddb5477/irq.c diff --git a/arch/mips/emma/markeins/led.c b/arch/mips/emma/markeins/led.c index 377a181b6561..49755896857f 100644 --- a/arch/mips/emma/markeins/led.c +++ b/arch/mips/emma/markeins/led.c @@ -1,7 +1,4 @@ /* - * arch/mips/emma2rh/markeins/led.c - * This file defines the led display for Mark-eins. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This program is free software; you can redistribute it and/or modify diff --git a/arch/mips/emma/markeins/platform.c b/arch/mips/emma/markeins/platform.c index 80ae12ef87db..b05b08b92a34 100644 --- a/arch/mips/emma/markeins/platform.c +++ b/arch/mips/emma/markeins/platform.c @@ -1,7 +1,4 @@ /* - * arch/mips/emma2rh/markeins/platofrm.c - * This file sets up platform devices for EMMA2RH Mark-eins. - * * Copyright(C) MontaVista Software Inc, 2006 * * Author: dmitry pervushin diff --git a/arch/mips/emma/markeins/setup.c b/arch/mips/emma/markeins/setup.c index 67f456500084..335dc8c1a1bb 100644 --- a/arch/mips/emma/markeins/setup.c +++ b/arch/mips/emma/markeins/setup.c @@ -1,7 +1,4 @@ /* - * arch/mips/emma2rh/markeins/setup.c - * This file is setup for EMMA2RH Mark-eins. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This file is based on the arch/mips/ddb5xxx/ddb5477/setup.c. diff --git a/arch/mips/fw/lib/call_o32.S b/arch/mips/fw/lib/call_o32.S index bdf7d1d4081a..e0a68713b3c3 100644 --- a/arch/mips/fw/lib/call_o32.S +++ b/arch/mips/fw/lib/call_o32.S @@ -1,6 +1,4 @@ /* - * arch/mips/dec/prom/call_o32.S - * * O32 interface for the 64 (or N32) ABI. * * Copyright (C) 2002 Maciej W. Rozycki diff --git a/arch/mips/include/asm/emma/emma2rh.h b/arch/mips/include/asm/emma/emma2rh.h index 30aea91de626..2afb2fe11b30 100644 --- a/arch/mips/include/asm/emma/emma2rh.h +++ b/arch/mips/include/asm/emma/emma2rh.h @@ -1,7 +1,4 @@ /* - * arch/mips/include/asm/emma/emma2rh.h - * This file is EMMA2RH common header. - * * Copyright (C) NEC Electronics Corporation 2005-2006 * * This file based on include/asm-mips/ddb5xxx/ddb5xxx.h diff --git a/arch/mips/include/asm/emma/markeins.h b/arch/mips/include/asm/emma/markeins.h index 973b0628490d..2618bf230248 100644 --- a/arch/mips/include/asm/emma/markeins.h +++ b/arch/mips/include/asm/emma/markeins.h @@ -1,7 +1,4 @@ /* - * include/asm-mips/emma2rh/markeins.h - * This file is EMMA2RH board depended header. - * * Copyright (C) NEC Electronics Corporation 2005-2006 * * This file based on include/asm-mips/ddb5xxx/ddb5xxx.h diff --git a/arch/mips/kernel/irq_txx9.c b/arch/mips/kernel/irq_txx9.c index a4d1462c27f7..9b78029bea70 100644 --- a/arch/mips/kernel/irq_txx9.c +++ b/arch/mips/kernel/irq_txx9.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/kernel/irq_txx9.c - * * Based on linux/arch/mips/jmr3927/rbhma3100/irq.c, * linux/arch/mips/tx4927/common/tx4927_irq.c, * linux/arch/mips/tx4938/common/irq.c diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c index e0a4ac18fa07..26109c4d5170 100644 --- a/arch/mips/kernel/proc.c +++ b/arch/mips/kernel/proc.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/kernel/proc.c - * * Copyright (C) 1995, 1996, 2001 Ralf Baechle * Copyright (C) 2001, 2004 MIPS Technologies, Inc. * Copyright (C) 2004 Maciej W. Rozycki diff --git a/arch/mips/kernel/stacktrace.c b/arch/mips/kernel/stacktrace.c index 58f5cd76c8c3..d52ff77baf3f 100644 --- a/arch/mips/kernel/stacktrace.c +++ b/arch/mips/kernel/stacktrace.c @@ -1,6 +1,4 @@ /* - * arch/mips/kernel/stacktrace.c - * * Stack trace management functions * * Copyright (C) 2006 Atsushi Nemoto diff --git a/arch/mips/mm/extable.c b/arch/mips/mm/extable.c index 297fb9f390dc..9d25d2ba4b9e 100644 --- a/arch/mips/mm/extable.c +++ b/arch/mips/mm/extable.c @@ -1,5 +1,9 @@ /* - * linux/arch/mips/mm/extable.c + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1997, 99, 2001 - 2004 Ralf Baechle */ #include #include diff --git a/arch/mips/pci/fixup-emma2rh.c b/arch/mips/pci/fixup-emma2rh.c index fba5aad00d51..0d9ccf4dfc5a 100644 --- a/arch/mips/pci/fixup-emma2rh.c +++ b/arch/mips/pci/fixup-emma2rh.c @@ -1,7 +1,4 @@ /* - * arch/mips/pci/fixup-emma2rh.c - * This file defines the PCI configration. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This file is based on the arch/mips/ddb5xxx/ddb5477/pci.c diff --git a/arch/mips/pci/fixup-sb1250.c b/arch/mips/pci/fixup-sb1250.c index 0ad39e53f7b1..f0bb9146e6c0 100644 --- a/arch/mips/pci/fixup-sb1250.c +++ b/arch/mips/pci/fixup-sb1250.c @@ -1,6 +1,4 @@ /* - * arch/mips/pci/fixup-sb1250.c - * * Copyright (C) 2004, 2006 MIPS Technologies, Inc. All rights reserved. * Author: Maciej W. Rozycki * diff --git a/arch/mips/pci/ops-emma2rh.c b/arch/mips/pci/ops-emma2rh.c index 5947a70b0b7f..710aef5c070e 100644 --- a/arch/mips/pci/ops-emma2rh.c +++ b/arch/mips/pci/ops-emma2rh.c @@ -1,7 +1,4 @@ /* - * arch/mips/pci/ops-emma2rh.c - * This file defines the PCI operation for EMMA2RH. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This file is based on the arch/mips/pci/ops-vr41xx.c diff --git a/arch/mips/pci/pci-emma2rh.c b/arch/mips/pci/pci-emma2rh.c index 2df4190232cd..773e34ff4d1c 100644 --- a/arch/mips/pci/pci-emma2rh.c +++ b/arch/mips/pci/pci-emma2rh.c @@ -1,7 +1,4 @@ /* - * arch/mips/pci/pci-emma2rh.c - * This file defines the PCI configration. - * * Copyright (C) NEC Electronics Corporation 2004-2006 * * This file is based on the arch/mips/ddb5xxx/ddb5477/pci.c diff --git a/arch/mips/pci/pci-tx4927.c b/arch/mips/pci/pci-tx4927.c index aaa900596792..a5807406a7f1 100644 --- a/arch/mips/pci/pci-tx4927.c +++ b/arch/mips/pci/pci-tx4927.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/pci/pci-tx4927.c - * * Based on linux/arch/mips/txx9/rbtx4938/setup.c, * and RBTX49xx patch from CELF patch archive. * diff --git a/arch/mips/pci/pci-tx4938.c b/arch/mips/pci/pci-tx4938.c index 1ea257bc3b8f..20e45f30b2ef 100644 --- a/arch/mips/pci/pci-tx4938.c +++ b/arch/mips/pci/pci-tx4938.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/pci/pci-tx4938.c - * * Based on linux/arch/mips/txx9/rbtx4938/setup.c, * and RBTX49xx patch from CELF patch archive. * diff --git a/arch/mips/pci/pci-tx4939.c b/arch/mips/pci/pci-tx4939.c index 5fecf1cdc325..9ef840693baf 100644 --- a/arch/mips/pci/pci-tx4939.c +++ b/arch/mips/pci/pci-tx4939.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/pci/pci-tx4939.c - * * Based on linux/arch/mips/txx9/rbtx4939/setup.c, * and RBTX49xx patch from CELF patch archive. * diff --git a/arch/mips/pmc-sierra/msp71xx/gpio.c b/arch/mips/pmc-sierra/msp71xx/gpio.c index 69848c5813e2..aaccbe524386 100644 --- a/arch/mips/pmc-sierra/msp71xx/gpio.c +++ b/arch/mips/pmc-sierra/msp71xx/gpio.c @@ -1,6 +1,4 @@ /* - * @file /arch/mips/pmc-sierra/msp71xx/gpio.c - * * Generic PMC MSP71xx GPIO handling. These base gpio are controlled by two * types of registers. The data register sets the output level when in output * mode and when in input mode will contain the value at the input. The config diff --git a/arch/mips/pmc-sierra/msp71xx/gpio_extended.c b/arch/mips/pmc-sierra/msp71xx/gpio_extended.c index fc6dbc6cf1c0..2a99f360fae4 100644 --- a/arch/mips/pmc-sierra/msp71xx/gpio_extended.c +++ b/arch/mips/pmc-sierra/msp71xx/gpio_extended.c @@ -1,6 +1,4 @@ /* - * @file /arch/mips/pmc-sierra/msp71xx/gpio_extended.c - * * Generic PMC MSP71xx EXTENDED (EXD) GPIO handling. The extended gpio is * a set of hardware registers that have no need for explicit locking as * it is handled by unique method of writing individual set/clr bits. diff --git a/arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c b/arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c index caf5e9a0acc7..fc990cb31941 100644 --- a/arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c +++ b/arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c @@ -1,6 +1,4 @@ /* - * arch/mips/pmc-sierra/yosemite/atmel_read_eeprom.c - * * Copyright (C) 2003 PMC-Sierra Inc. * Author: Manish Lachwani (lachwani@pmc-sierra.com) * diff --git a/arch/mips/sibyte/swarm/swarm-i2c.c b/arch/mips/sibyte/swarm/swarm-i2c.c index 4282ac9d01d2..062505054d42 100644 --- a/arch/mips/sibyte/swarm/swarm-i2c.c +++ b/arch/mips/sibyte/swarm/swarm-i2c.c @@ -1,6 +1,4 @@ /* - * arch/mips/sibyte/swarm/swarm-i2c.c - * * Broadcom BCM91250A (SWARM), etc. I2C platform setup. * * Copyright (c) 2008 Maciej W. Rozycki diff --git a/arch/mips/txx9/generic/mem_tx4927.c b/arch/mips/txx9/generic/mem_tx4927.c index ef6ea6e97873..70f9626f8227 100644 --- a/arch/mips/txx9/generic/mem_tx4927.c +++ b/arch/mips/txx9/generic/mem_tx4927.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/txx9/generic/mem_tx4927.c - * * common tx4927 memory interface * * Author: MontaVista Software, Inc. diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c index 3b7d77d61ce0..a205e2ba8e7b 100644 --- a/arch/mips/txx9/generic/setup.c +++ b/arch/mips/txx9/generic/setup.c @@ -1,6 +1,4 @@ /* - * linux/arch/mips/txx9/generic/setup.c - * * Based on linux/arch/mips/txx9/rbtx4938/setup.c, * and RBTX49xx patch from CELF patch archive. * -- cgit v1.2.3 From 484889fc85a223ef56edc31828b86751b2296b7c Mon Sep 17 00:00:00 2001 From: David Daney Date: Wed, 8 Jul 2009 10:07:50 -0700 Subject: MIPS: Avoid clobbering struct pt_regs in kthreads The resume() implementation octeon_switch.S examines the saved cp0_status register. We were clobbering the entire pt_regs structure in kernel threads leading to random crashes. When switching away from a kernel thread, the saved cp0_status is examined and if bit 30 is set it is cleared and the CP2 state saved into the pt_regs structure. Since the kernel thread stack overlaid the pt_regs structure this resulted in a corrupt stack. When the kthread with the corrupt stack was resumed, it could crash if it used any of the data in the stack that was clobbered. We fix it by moving the kernel thread stack down so it doesn't overlay pt_regs. Signed-off-by: David Daney Signed-off-by: Ralf Baechle --- arch/mips/include/asm/processor.h | 5 +++-- arch/mips/kernel/head.S | 3 ++- arch/mips/kernel/process.c | 4 +++- 3 files changed, 8 insertions(+), 4 deletions(-) (limited to 'arch/mips/kernel') diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h index 0f926aa0cb47..087a8884ef06 100644 --- a/arch/mips/include/asm/processor.h +++ b/arch/mips/include/asm/processor.h @@ -311,8 +311,9 @@ extern void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long unsigned long get_wchan(struct task_struct *p); -#define __KSTK_TOS(tsk) ((unsigned long)task_stack_page(tsk) + THREAD_SIZE - 32) -#define task_pt_regs(tsk) ((struct pt_regs *)__KSTK_TOS(tsk) - 1) +#define __KSTK_TOS(tsk) ((unsigned long)task_stack_page(tsk) + \ + THREAD_SIZE - 32 - sizeof(struct pt_regs)) +#define task_pt_regs(tsk) ((struct pt_regs *)__KSTK_TOS(tsk)) #define KSTK_EIP(tsk) (task_pt_regs(tsk)->cp0_epc) #define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[29]) #define KSTK_STATUS(tsk) (task_pt_regs(tsk)->cp0_status) diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S index 492a0a8d70fb..531ce7b16124 100644 --- a/arch/mips/kernel/head.S +++ b/arch/mips/kernel/head.S @@ -188,7 +188,8 @@ NESTED(kernel_entry, 16, sp) # kernel entry point MTC0 zero, CP0_CONTEXT # clear context register PTR_LA $28, init_thread_union - PTR_LI sp, _THREAD_SIZE - 32 + /* Set the SP after an empty pt_regs. */ + PTR_LI sp, _THREAD_SIZE - 32 - PT_SIZE PTR_ADDU sp, $28 set_saved_sp sp, t0, t1 PTR_SUBU sp, 4 * SZREG # init stack pointer diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index c09d681b7181..f3d73e1831c1 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -115,7 +115,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, { struct thread_info *ti = task_thread_info(p); struct pt_regs *childregs; - long childksp; + unsigned long childksp; p->set_child_tid = p->clear_child_tid = NULL; childksp = (unsigned long)task_stack_page(p) + THREAD_SIZE - 32; @@ -132,6 +132,8 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, /* set up new TSS. */ childregs = (struct pt_regs *) childksp - 1; + /* Put the stack after the struct pt_regs. */ + childksp = (unsigned long) childregs; *childregs = *regs; childregs->regs[7] = 0; /* Clear error flag */ -- cgit v1.2.3 From d8e5f9fe5dab0e07985f2456cb6cc57788f53131 Mon Sep 17 00:00:00 2001 From: Kurt Martin Date: Wed, 8 Jul 2009 19:22:35 -0700 Subject: MIPS: SMTC: Move cross VPE writes to after a TC is assigned to VPE. Signed-off-by: Chris Dearman Signed-off-by: Raghu Gandham Signed-off-by: Ralf Baechle --- arch/mips/kernel/smtc.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'arch/mips/kernel') diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c index 8a0626cbb108..c16bb6d6c25c 100644 --- a/arch/mips/kernel/smtc.c +++ b/arch/mips/kernel/smtc.c @@ -465,11 +465,8 @@ void smtc_prepare_cpus(int cpus) smtc_configure_tlb(); for (tc = 0, vpe = 0 ; (vpe < nvpe) && (tc < ntc) ; vpe++) { - /* - * Set the MVP bits. - */ - settc(tc); - write_vpe_c0_vpeconf0(read_vpe_c0_vpeconf0() | VPECONF0_MVP); + if (tcpervpe[vpe] == 0) + continue; if (vpe != 0) printk(", "); printk("VPE %d: TC", vpe); @@ -487,6 +484,12 @@ void smtc_prepare_cpus(int cpus) tc++; } if (vpe != 0) { + /* + * Allow this VPE to control others. + */ + write_vpe_c0_vpeconf0(read_vpe_c0_vpeconf0() | + VPECONF0_MVP); + /* * Clear any stale software interrupts from VPE's Cause */ -- cgit v1.2.3 From 0e66fff883ef1b6e4c5031e8add8827cd0e2a195 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Mon, 13 Jul 2009 11:14:24 +0200 Subject: MIPS: Fix loading of modules with unresolved weak symbols Loading of modules with unresolved weak symbols fails on MIPS since '88173507e4fc1e7ecd111b0565e8cba0cb7dae6d'. Modules: handle symbols that have a zero value The module subsystem cannot handle symbols that are zero. If symbols are present that have a zero value then the module resolver prints out a message that these symbols are unresolved. We have to use IS_ERR_VALUE() to check that a symbol has been resolved or not. Signed-off-by: Gabor Juhos Signed-off-by: Ralf Baechle --- arch/mips/kernel/module.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/mips/kernel') diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c index 3e9100dcc12d..e465851a6163 100644 --- a/arch/mips/kernel/module.c +++ b/arch/mips/kernel/module.c @@ -301,7 +301,7 @@ int apply_relocate(Elf_Shdr *sechdrs, const char *strtab, /* This is the symbol it is referring to */ sym = (Elf_Sym *)sechdrs[symindex].sh_addr + ELF_MIPS_R_SYM(rel[i]); - if (!sym->st_value) { + if (IS_ERR_VALUE(sym->st_value)) { /* Ignore unresolved weak symbol */ if (ELF_ST_BIND(sym->st_info) == STB_WEAK) continue; @@ -341,7 +341,7 @@ int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab, /* This is the symbol it is referring to */ sym = (Elf_Sym *)sechdrs[symindex].sh_addr + ELF_MIPS_R_SYM(rel[i]); - if (!sym->st_value) { + if (IS_ERR_VALUE(sym->st_value)) { /* Ignore unresolved weak symbol */ if (ELF_ST_BIND(sym->st_info) == STB_WEAK) continue; -- cgit v1.2.3 From 6f9fdeb6761a46ded6bf4b799993a3f235ab853d Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Aug 2009 10:50:19 +0100 Subject: MIPS: Module: Make error messages unique. There were three different errors resulting in a "dangerous relocation" message. Add the relocation type to the messgages to make them more useful. Signed-off-by: Ralf Baechle --- arch/mips/kernel/module.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'arch/mips/kernel') diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c index e465851a6163..6f51dda87fce 100644 --- a/arch/mips/kernel/module.c +++ b/arch/mips/kernel/module.c @@ -98,7 +98,8 @@ static int apply_r_mips_32_rela(struct module *me, u32 *location, Elf_Addr v) static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v) { if (v % 4) { - printk(KERN_ERR "module %s: dangerous relocation\n", me->name); + pr_err("module %s: dangerous R_MIPS_26 REL relocation\n", + me->name); return -ENOEXEC; } @@ -118,7 +119,8 @@ static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v) static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v) { if (v % 4) { - printk(KERN_ERR "module %s: dangerous relocation\n", me->name); + pr_err("module %s: dangerous R_MIPS_26 RELArelocation\n", + me->name); return -ENOEXEC; } @@ -222,7 +224,7 @@ static int apply_r_mips_lo16_rel(struct module *me, u32 *location, Elf_Addr v) return 0; out_danger: - printk(KERN_ERR "module %s: dangerous " "relocation\n", me->name); + pr_err("module %s: dangerous R_MIPS_LO16 REL relocation\n", me->name); return -ENOEXEC; } -- cgit v1.2.3 From e2a9cf96a0af24f33206b4bb98cc3a12242260c1 Mon Sep 17 00:00:00 2001 From: Raghu Gandham Date: Fri, 10 Jul 2009 02:01:32 -0700 Subject: MIPS: VPE: Fix compiler warning. Signed-off-by: Raghu Gandham Signed-off-by: Ralf Baechle --- arch/mips/kernel/vpe.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/mips/kernel') diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 07b9ec2c6e3d..3d4ef841d829 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -327,7 +327,8 @@ static void layout_sections(struct module *mod, const Elf_Ehdr * hdr, || (s->sh_flags & masks[m][1]) || s->sh_entsize != ~0UL) continue; - s->sh_entsize = get_offset(&mod->core_size, s); + s->sh_entsize = + get_offset((unsigned long *)&mod->core_size, s); } if (m == 0) -- cgit v1.2.3 From 477c4b07406357ad93d0e32788dbf3ee814eadaa Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Aug 2009 12:26:40 +0100 Subject: MIPS: VPE: Free relocation chain on error. This may happen if a bad sequence of relocations is being encountered. Signed-off-by: Ralf Baechle --- arch/mips/kernel/vpe.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'arch/mips/kernel') diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 3d4ef841d829..245b03e88089 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -462,16 +462,15 @@ static int apply_r_mips_lo16(struct module *me, uint32_t *location, { unsigned long insnlo = *location; Elf32_Addr val, vallo; + struct mips_hi16 *l, *next; /* Sign extend the addend we extract from the lo insn. */ vallo = ((insnlo & 0xffff) ^ 0x8000) - 0x8000; if (mips_hi16_list != NULL) { - struct mips_hi16 *l; l = mips_hi16_list; while (l != NULL) { - struct mips_hi16 *next; unsigned long insn; /* @@ -481,7 +480,7 @@ static int apply_r_mips_lo16(struct module *me, uint32_t *location, printk(KERN_DEBUG "VPE loader: " "apply_r_mips_lo16/hi16: \t" "inconsistent value information\n"); - return -ENOEXEC; + goto out_free; } /* @@ -519,6 +518,16 @@ static int apply_r_mips_lo16(struct module *me, uint32_t *location, *location = insnlo; return 0; + +out_free: + while (l != NULL) { + next = l->next; + kfree(l); + l = next; + } + mips_hi16_list = NULL; + + return -ENOEXEC; } static int (*reloc_handlers[]) (struct module *me, uint32_t *location, -- cgit v1.2.3 From f18b51cc1f97ca290256e8f94127f6856a42d605 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Aug 2009 12:54:35 +0100 Subject: MIPS: VPE: Make various functions static. None of these is used outside the VPE loader. Signed-off-by: Ralf Baechle --- arch/mips/kernel/vpe.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) (limited to 'arch/mips/kernel') diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 245b03e88089..6cbeb2a54527 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -155,10 +155,9 @@ struct { }; static void release_progmem(void *ptr); -extern void save_gp_address(unsigned int secbase, unsigned int rel); /* get the vpe associated with this minor */ -struct vpe *get_vpe(int minor) +static struct vpe *get_vpe(int minor) { struct vpe *v; @@ -174,7 +173,7 @@ struct vpe *get_vpe(int minor) } /* get the vpe associated with this minor */ -struct tc *get_tc(int index) +static struct tc *get_tc(int index) { struct tc *t; @@ -199,7 +198,7 @@ struct tc *get_tc_unused(void) } /* allocate a vpe and associate it with this minor (or index) */ -struct vpe *alloc_vpe(int minor) +static struct vpe *alloc_vpe(int minor) { struct vpe *v; @@ -216,7 +215,7 @@ struct vpe *alloc_vpe(int minor) } /* allocate a tc. At startup only tc0 is running, all other can be halted. */ -struct tc *alloc_tc(int index) +static struct tc *alloc_tc(int index) { struct tc *tc; @@ -232,7 +231,7 @@ out: } /* clean up and free everything */ -void release_vpe(struct vpe *v) +static void release_vpe(struct vpe *v) { list_del(&v->list); if (v->load_addr) @@ -240,7 +239,7 @@ void release_vpe(struct vpe *v) kfree(v); } -void dump_mtregs(void) +static void dump_mtregs(void) { unsigned long val; @@ -551,7 +550,7 @@ static char *rstrs[] = { [R_MIPS_PC16] = "MIPS_PC16" }; -int apply_relocations(Elf32_Shdr *sechdrs, +static int apply_relocations(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex, unsigned int relsec, @@ -596,7 +595,7 @@ int apply_relocations(Elf32_Shdr *sechdrs, return 0; } -void save_gp_address(unsigned int secbase, unsigned int rel) +static inline void save_gp_address(unsigned int secbase, unsigned int rel) { gp_addr = secbase + rel; gp_offs = gp_addr - (secbase & 0xffff0000); -- cgit v1.2.3 From 349c4229ed305146a558008d393c622d715cd11d Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Aug 2009 12:56:39 +0100 Subject: MIPS: VPE: Fix bogus indentation. Signed-off-by: Ralf Baechle --- arch/mips/kernel/vpe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/mips/kernel') diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 6cbeb2a54527..e3687524fdb6 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -73,7 +73,7 @@ static int major; static const int minor = 1; /* fixed for now */ #ifdef CONFIG_MIPS_APSP_KSPD - static struct kspd_notifications kspd_events; +static struct kspd_notifications kspd_events; static int kspd_events_reqd = 0; #endif -- cgit v1.2.3 From ce21f4e86f89d352efecd044958db1917033b49b Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Aug 2009 12:57:52 +0100 Subject: MIPS: VPE: Delete unused function get_tc_unused(). Signed-off-by: Ralf Baechle --- arch/mips/kernel/vpe.c | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'arch/mips/kernel') diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index e3687524fdb6..9a1ab7e87fd4 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -185,18 +185,6 @@ static struct tc *get_tc(int index) return NULL; } -struct tc *get_tc_unused(void) -{ - struct tc *t; - - list_for_each_entry(t, &vpecontrol.tc_list, list) { - if (t->state == TC_STATE_UNUSED) - return t; - } - - return NULL; -} - /* allocate a vpe and associate it with this minor (or index) */ static struct vpe *alloc_vpe(int minor) { -- cgit v1.2.3 From 54822de7793bf9aa56d79cc173281cdb23b37f9f Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Aug 2009 17:27:19 +0100 Subject: MIPS: Wire up accept4 syscall. Signed-off-by: Ralf Baechle --- arch/mips/include/asm/unistd.h | 15 +++++++++------ arch/mips/kernel/scall32-o32.S | 1 + arch/mips/kernel/scall64-64.S | 1 + arch/mips/kernel/scall64-n32.S | 1 + arch/mips/kernel/scall64-o32.S | 1 + 5 files changed, 13 insertions(+), 6 deletions(-) (limited to 'arch/mips/kernel') diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h index b70c49fdda26..e753a777949b 100644 --- a/arch/mips/include/asm/unistd.h +++ b/arch/mips/include/asm/unistd.h @@ -354,16 +354,17 @@ #define __NR_pwritev (__NR_Linux + 331) #define __NR_rt_tgsigqueueinfo (__NR_Linux + 332) #define __NR_perf_counter_open (__NR_Linux + 333) +#define __NR_accept4 (__NR_Linux + 334) /* * Offset of the last Linux o32 flavoured syscall */ -#define __NR_Linux_syscalls 333 +#define __NR_Linux_syscalls 334 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ #define __NR_O32_Linux 4000 -#define __NR_O32_Linux_syscalls 333 +#define __NR_O32_Linux_syscalls 334 #if _MIPS_SIM == _MIPS_SIM_ABI64 @@ -664,16 +665,17 @@ #define __NR_pwritev (__NR_Linux + 290) #define __NR_rt_tgsigqueueinfo (__NR_Linux + 291) #define __NR_perf_counter_open (__NR_Linux + 292) +#define __NR_accept4 (__NR_Linux + 293) /* * Offset of the last Linux 64-bit flavoured syscall */ -#define __NR_Linux_syscalls 292 +#define __NR_Linux_syscalls 293 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */ #define __NR_64_Linux 5000 -#define __NR_64_Linux_syscalls 292 +#define __NR_64_Linux_syscalls 293 #if _MIPS_SIM == _MIPS_SIM_NABI32 @@ -978,16 +980,17 @@ #define __NR_pwritev (__NR_Linux + 294) #define __NR_rt_tgsigqueueinfo (__NR_Linux + 295) #define __NR_perf_counter_open (__NR_Linux + 296) +#define __NR_accept4 (__NR_Linux + 297) /* * Offset of the last N32 flavoured syscall */ -#define __NR_Linux_syscalls 296 +#define __NR_Linux_syscalls 297 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */ #define __NR_N32_Linux 6000 -#define __NR_N32_Linux_syscalls 296 +#define __NR_N32_Linux_syscalls 297 #ifdef __KERNEL__ diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index 20a86e08fd58..b57082123536 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -654,6 +654,7 @@ einval: li v0, -ENOSYS sys sys_pwritev 6 sys sys_rt_tgsigqueueinfo 4 sys sys_perf_counter_open 5 + sys sys_accept4 4 .endm /* We pre-compute the number of _instruction_ bytes needed to diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S index b046130d4c5d..3d866f24e064 100644 --- a/arch/mips/kernel/scall64-64.S +++ b/arch/mips/kernel/scall64-64.S @@ -491,4 +491,5 @@ sys_call_table: PTR sys_pwritev /* 5390 */ PTR sys_rt_tgsigqueueinfo PTR sys_perf_counter_open + PTR sys_accept4 .size sys_call_table,.-sys_call_table diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 15874f9812cc..e855b118a079 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -417,4 +417,5 @@ EXPORT(sysn32_call_table) PTR sys_pwritev PTR compat_sys_rt_tgsigqueueinfo /* 5295 */ PTR sys_perf_counter_open + PTR sys_accept4 .size sysn32_call_table,.-sysn32_call_table diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 781e0f1e9533..0c49f1a660be 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -537,4 +537,5 @@ sys_call_table: PTR compat_sys_pwritev PTR compat_sys_rt_tgsigqueueinfo PTR sys_perf_counter_open + PTR sys_accept4 .size sys_call_table,.-sys_call_table -- cgit v1.2.3