- 20 4月, 2008 8 次提交
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由 Adrian Bunk 提交于
On Mon, Apr 14, 2008 at 03:36:24PM +0100, Alan Cox wrote: > On Mon, 14 Apr 2008 17:17:21 +0300 > Adrian Bunk <bunk@kernel.org> wrote: > > > This patch fixes the following build error: > > > > <-- snip --> > > > > ... > > CC [M] drivers/serial/8250.o > > /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/serial/8250.c:95:24: error: asm/serial.h: No such file or directory > > make[3]: *** [drivers/serial/8250.o] Error 1 > > > > <-- snip --> > > > > Signed-off-by: Adrian Bunk <bunk@kernel.org> > > > > --- > > 3cb4ef80d75e118ccfd44f7006aea3db54afb31c diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig > > index b1bbaa0..b0e216d 100644 > > --- a/drivers/serial/Kconfig > > +++ b/drivers/serial/Kconfig > > @@ -11,7 +11,7 @@ menu "Serial drivers" > > # The new 8250/16550 serial drivers > > config SERIAL_8250 > > tristate "8250/16550 and compatible serial support" > > - depends on (BROKEN || !SPARC) > > + depends on (BROKEN || !SPARC) && !AVR32 > > select SERIAL_CORE > > ---help--- > > NAK. > > Add an asm/serial.h to the platform as it has PCI so will have 8250 PCI > devices available to it. A copy of the MIPS one should be right. Patch below. > Alan cu Adrian <-- snip --> This patch fixes the following build error with CONFIG_SERIAL_8250: <-- snip --> ... CC [M] drivers/serial/8250.o /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/serial/8250.c:95:24: error: asm/serial.h: No such file or directory make[3]: *** [drivers/serial/8250.o] Error 1 <-- snip --> Signed-off-by: NAdrian Bunk <bunk@kernel.org> Acked-by: NAlan Cox <alan@redhat.com> Signed-off-by: NHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
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由 Adrian Bunk 提交于
This patch fixes the following compile error with CONFIG_MD_RAID456 on avr32: <-- snip --> ... CC [M] crypto/xor.o /home/bunk/linux/kernel-2.6/git/linux-2.6/crypto/xor.c:23:21: error: asm/xor.h: No such file or directory /home/bunk/linux/kernel-2.6/git/linux-2.6/crypto/xor.c: In function 'calibrate_xor_blocks': /home/bunk/linux/kernel-2.6/git/linux-2.6/crypto/xor.c:131: error: 'XOR_TRY_TEMPLATES' undeclared (first use in this function) /home/bunk/linux/kernel-2.6/git/linux-2.6/crypto/xor.c:131: error: (Each undeclared identifier is reported only once /home/bunk/linux/kernel-2.6/git/linux-2.6/crypto/xor.c:131: error: for each function it appears in.) make[2]: *** [crypto/xor.o] Error 1 <-- snip --> Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
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由 David Brownell 提交于
This combines three patches from David Brownell: * avr32: tclib support * avr32: simplify clocksources * avr32: Turn count/compare into a oneshot clockevent device Register both TC blocks (instead of just the first one) so that the AT32/AT91 tclib code will pick them up (instead of just the avr32-only PIT-style clocksource). Rename the first one and its resources appropriately. More cleanups to the cycle counter clocksource code - Disable all the weak symbol magic; remove the AVR32-only TCB-based clocksource code (source and header). - Mark the __init code properly. - Don't forget to report IRQF_TIMER. - Make the system work properly with this clocksource, by preventing use of the CPU "idle" sleep state in the idle loop when it's used. Package the avr32 count/compare timekeeping support as a oneshot clockevent device, so it supports NO_HZ and high res timers. This means it also supports plugging in other clockevent devices and clocksources. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
Create a new file, pm-at32ap700x.S, in mach-at32ap and move the CPU idle sleep code there. Make it possible to disable the sleep code. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
Move the only thing that was actually implemented and used in asm/intc.h, intc_get_pending(), into asm/irq.h and delete asm/intc.h Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Ben Nizette 提交于
New-style I2C drivers require that motherboard-mounted I2C devices are registered with the I2C core, typically at arch_initcall time. This can be done nice and neat by passing the struct i2c_board_info[] through at32_add_device_twi just like we do for the SPI board info. While we've got the hood up, remove a duplicate declaration of at32_add_device_twi() in board.h. [hskinnemoen@atmel.com: add missing i2c_board_info forward-declaration] Signed-Off-By: NBen Nizette <bn@niasdigital.com> Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Cyrill Gorcunov 提交于
PAGE_SIZE is used both from assembly and C code. We want to have type specifiers when using it from C, but this will make the assembler confused, so we need to make it conditional. This is exactly what the _AC macro is for, so using it allows us to get rid of a few lines of cpp noise. Signed-off-by: NCyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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- 17 4月, 2008 1 次提交
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由 Matthew Wilcox 提交于
Semaphores are no longer performance-critical, so a generic C implementation is better for maintainability, debuggability and extensibility. Thanks to Peter Zijlstra for fixing the lockdep warning. Thanks to Harvey Harrison for pointing out that the unlikely() was unnecessary. Signed-off-by: NMatthew Wilcox <willy@linux.intel.com> Acked-by: NIngo Molnar <mingo@elte.hu>
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- 07 4月, 2008 1 次提交
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由 Stelian Pop 提交于
The atmel_usba_udc driver is being used by several platforms and arches (avr32 and at91 ATM), and each platform may have different endpoint settings. The patch below moves the endpoint declarations into the platform data and make the necessary adjustments for AVR32 (improved by Haavard Skinnemoen <hskinnemoen@atmel.com>). Signed-off-by: NStelian Pop <stelian@popies.net> Acked-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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- 03 4月, 2008 1 次提交
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由 Christian Borntraeger 提交于
Currently include/linux/kvm.h is not considered by make headers_install, because Kbuild cannot handle " unifdef-$(CONFIG_FOO) += foo.h. This problem was introduced by commit fb56dbb3 Author: Avi Kivity <avi@qumranet.com> Date: Sun Dec 2 10:50:06 2007 +0200 KVM: Export include/linux/kvm.h only if $ARCH actually supports KVM Currently, make headers_check barfs due to <asm/kvm.h>, which <linux/kvm.h> includes, not existing. Rather than add a zillion <asm/kvm.h>s, export kvm. only if the arch actually supports it. Signed-off-by: NAvi Kivity <avi@qumranet.com> which makes this an 2.6.25 regression. One way of solving the issue is to enhance Kbuild, but Avi and David conviced me, that changing headers_install is not the way to go. This patch changes the definition for linux/kvm.h to unifdef-y. If unifdef-y is used for linux/kvm.h "make headers_check" will fail on all architectures without asm/kvm.h. Therefore, this patch also provides asm/kvm.h on all architectures. Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Acked-by: NAvi Kivity <avi@qumranet.com> Cc: Sam Ravnborg <sam@ravnborg.org Cc: David Woodhouse <dwmw2@infradead.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 10 3月, 2008 1 次提交
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由 Haavard Skinnemoen 提交于
gcc versions earlier than 4.2 sign-extends the result of le16_to_cpu() and friends when we implement __arch__swabX() using __builtin_bswap_X(). Disable our arch-specific optimizations when those gcc versions are being used. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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- 13 2月, 2008 1 次提交
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由 Haavard Skinnemoen 提交于
The virtual framebuffer driver needs PAGE_SHARED, which is not defined on avr32. Define it. Reported-by: NOliver Zander <ozander@como.com> Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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- 09 2月, 2008 4 次提交
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由 Martin Schwidefsky 提交于
Background: I've implemented 1K/2K page tables for s390. These sub-page page tables are required to properly support the s390 virtualization instruction with KVM. The SIE instruction requires that the page tables have 256 page table entries (pte) followed by 256 page status table entries (pgste). The pgstes are only required if the process is using the SIE instruction. The pgstes are updated by the hardware and by the hypervisor for a number of reasons, one of them is dirty and reference bit tracking. To avoid wasting memory the standard pte table allocation should return 1K/2K (31/64 bit) and 2K/4K if the process is using SIE. Problem: Page size on s390 is 4K, page table size is 1K or 2K. That means the s390 version for pte_alloc_one cannot return a pointer to a struct page. Trouble is that with the CONFIG_HIGHPTE feature on x86 pte_alloc_one cannot return a pointer to a pte either, since that would require more than 32 bit for the return value of pte_alloc_one (and the pte * would not be accessible since its not kmapped). Solution: The only solution I found to this dilemma is a new typedef: a pgtable_t. For s390 pgtable_t will be a (pte *) - to be introduced with a later patch. For everybody else it will be a (struct page *). The additional problem with the initialization of the ptl lock and the NR_PAGETABLE accounting is solved with a constructor pgtable_page_ctor and a destructor pgtable_page_dtor. The page table allocation and free functions need to call these two whenever a page table page is allocated or freed. pmd_populate will get a pgtable_t instead of a struct page pointer. To get the pgtable_t back from a pmd entry that has been installed with pmd_populate a new function pmd_pgtable is added. It replaces the pmd_page call in free_pte_range and apply_to_pte_range. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Brownell 提交于
PWM device setup, and a simple PWM driver exposing a programming interface giving access to each channel's full capabilities. Note that this doesn't support starting several channels in synch. [hskinnemoen@atmel.com: allocate platform device dynamically] [hskinnemoen@atmel.com: Kconfig fix] Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com> Cc: Andrew Victor <linux@maxim.org.za> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Mike Frysinger 提交于
Some arches (like alpha and ia64) already have a clean posix_types.h header. This brings all the others in line by removing all references to __GLIBC__ (and some undocumented __USE_ALL). Signed-off-by: NMike Frysinger <vapier@gentoo.org> Acked-by: NIngo Molnar <mingo@elte.hu> Cc: Ulrich Drepper <drepper@redhat.com> Cc: Roland McGrath <roland@redhat.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Howells 提交于
Move STACK_TOP[_MAX] out of asm/a.out.h and into asm/processor.h as they're required whether or not A.OUT format is available. Signed-off-by: NDavid Howells <dhowells@redhat.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 08 2月, 2008 3 次提交
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由 Mathieu Desnoyers 提交于
Use the new generic cmpxchg_local (disables interrupt) for 8, 16 and 64 bits cmpxchg_local. Use the __cmpxchg_u32 primitive for 32 bits cmpxchg_local. Note that cmpxchg only uses the __cmpxchg_u32 or __cmpxchg_u64 and will cause a linker error if called with 8 or 16 bits argument. Signed-off-by: NMathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: NHaavard Skinnemoen <hskinnemoen@atmel.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 H. Peter Anvin 提交于
struct user.u_ar0 is defined to contain a pointer offset on all architectures in which it is defined (all architectures which define an a.out format except SPARC.) However, it has a pointer type in the headers, which is pointless -- <asm/user.h> is not exported to userspace, and it just makes the code messy. Redefine the field as "unsigned long" (which is the same size as a pointer on all Linux architectures) and change the setting code to user offsetof() instead of hand-coded arithmetic. Cc: Linux Arch Mailing List <linux-arch@vger.kernel.org> Cc: Bryan Wu <bryan.wu@analog.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Håvard Skinnemoen <hskinnemoen@atmel.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Tony Luck <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: NH. Peter Anvin <hpa@zytor.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Kirill A. Shutemov 提交于
asm/elf.h, asm/page.h and asm/user.h don't export to userspace now, so we can drop #ifdef __KERNEL__ for them. [k.shutemov@gmail.com: remove #ifdef __KERNEL_] Signed-off-by: NKirill A. Shutemov <k.shutemov@gmail.com> Reviewed-by: NDavid Woodhouse <dwmw2@infradead.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NKirill A. Shutemov <k.shutemov@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 07 2月, 2008 2 次提交
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由 Jeff Dike 提交于
The declaration and implementation of __const_udelay use different names for the parameter on a number of architectures: include/asm-avr32/delay.h:15:extern void __const_udelay(unsigned long usecs); arch/avr32/lib/delay.c:39:inline void __const_udelay(unsigned long xloops) include/asm-sh/delay.h:15:extern void __const_udelay(unsigned long usecs); arch/sh/lib/delay.c:22:inline void __const_udelay(unsigned long xloops) include/asm-m32r/delay.h:15:extern void __const_udelay(unsigned long usecs); arch/m32r/lib/delay.c:58:void __const_udelay(unsigned long xloops) include/asm-x86/delay.h:16:extern void __const_udelay(unsigned long usecs); arch/x86/lib/delay_32.c:82:inline void __const_udelay(unsigned long xloops) arch/x86/lib/delay_64.c:46:inline void __const_udelay(unsigned long xloops) The units of the parameter isn't usecs, so that name is definitely wrong. It's also not exactly loops, so I suppose xloops is an OK name. This patch changes these names from usecs to xloops. Signed-off-by: NJeff Dike <jdike@linux.intel.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrew Morton 提交于
- All implementations can be __devinit - The function prototypes were in asm/timex.h but they all must be the same, so create a single declaration in linux/timex.h. - uninline the sparc64 version to match the other architectures - Don't bother #defining ARCH_HAS_READ_CURRENT_TIMER to a particular value. [ezk@cs.sunysb.edu: fix build] Cc: "David S. Miller" <davem@davemloft.net> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 06 2月, 2008 3 次提交
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由 Haavard Skinnemoen 提交于
Hmm. Someone removed the timerfd() syscall... Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Benjamin Herrenschmidt 提交于
(with Martin Schwidefsky <schwidefsky@de.ibm.com>) The pgd/pud/pmd/pte page table allocation functions get a mm_struct pointer as first argument. The free functions do not get the mm_struct argument. This is 1) asymmetrical and 2) to do mm related page table allocations the mm argument is needed on the free function as well. [kamalesh@linux.vnet.ibm.com: i386 fix] [akpm@linux-foundation.org: coding-syle fixes] Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NKamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Brownell 提交于
Teach AVR32 to use the "GPIO Library" when exposing its GPIOs, so that signals on external chips (like GPIO expanders) can easily be used. This mostly reorganizes some existing logic, with two minor changes in behavior: - The PSR registers are used instead of the previous "gpio_mask" values, matching AT91 behavior and removing some duplication between that role and that of "pinmux_mask". - NR_IRQs grew to acommodate a bank of external GPIOs. Eventually this number should probably become a board-specific config option. There's a debugfs dump of status for the built-in GPIOs, showing which pins have deglitching, pullups, or open drain drive enabled, as well as the ID string used when requesting each IRQ. Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Acked-by: NHaavard Skinnemoen <hskinnemoen@atmel.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Eric Miao <eric.miao@marvell.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Philipp Zabel <philipp.zabel@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Ben Gardner <bgardner@wabtec.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 01 2月, 2008 1 次提交
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由 Laszlo Attila Toth 提交于
A userspace program may wish to set the mark for each packets its send without using the netfilter MARK target. Changing the mark can be used for mark based routing without netfilter or for packet filtering. It requires CAP_NET_ADMIN capability. Signed-off-by: NLaszlo Attila Toth <panther@balabit.hu> Acked-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 29 1月, 2008 1 次提交
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由 Adrian Bunk 提交于
Remove the deprecated __attribute_used__. [Introduce __section in a few places to silence checkpatch /sam] Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
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- 26 1月, 2008 1 次提交
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由 Andrew Victor 提交于
Add support for Atmel's AT91CAP9 Customizable Microcontroller family. <http://www.atmel.com/products/AT91CAP/Default.asp> Signed-off-by: NStelian Pop <stelian@popies.net> Signed-off-by: NAndrew Victor <linux@maxim.org.za> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 25 1月, 2008 4 次提交
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由 Haavard Skinnemoen 提交于
Change the NMI handler to use the die notifier chain to signal anyone who cares. Add a simple "nmi debugger" which hooks into this chain and that may dump registers, task state, etc. when it happens. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
These are derivatives of the AT32AP7000 chip, which means that most of the code stays the same. Rename a few files, functions, definitions and config symbols to reflect that they apply to all AP700x chips, and exclude some platform devices from chips where they aren't present. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
Add the following fields to /proc/cpuinfo: * chip type and revision (from the JTAG chip id) * cpu MHz (from clk_get_rate()) * features (from the CONFIG0 register) Also rename "cpu family" to "cpu arch" and "cpu type" to "cpu core" to remove some ambiguity. Show chip type and revision at bootup, and clarify that the other kinds of IDs that we're already printing are for the cpu core and architecture. Rename "AP7000" to "AP7" since that's the name of the core. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
Keep track of processes being debugged (including the kernel itself) and turn the OCD system on and off as appropriate. Since enabling debugging turns off some optimizations in the CPU core, this fixes the issue that enabling KProbes support or simply running a program under gdbserver will reduce system performance significantly until the next reboot. The CPU performance will still be reduced for all processes while a process is being debugged, but this is a lot better than reducing the performance forever. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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- 07 12月, 2007 6 次提交
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由 Haavard Skinnemoen 提交于
The current implementation of copy_to_user_page() gives "vaddr" to the cache instruction when trying to sync the icache with the dcache. If vaddr does not exist in the TLB, the CPU will silently abort the operation, which may result in the caches staying out of sync. To fix this, pass the "dst" parameter to flush_icache_range() instead -- we know this is valid because we just wrote to it. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
The current debug trap handling code does a number of things that are illegal according to the AVR32 Architecture manual. Most importantly, it may try to schedule from Debug Mode, thus clearing the D bit, which can lead to "undefined behaviour". It seems like this works in most cases, but several people have observed somewhat unstable behaviour when debugging programs, including soft lockups. So there's definitely something which is not right with the existing code. The new code will never schedule from Debug mode, it will always exit Debug mode with a "retd" instruction, and if something not running in Debug mode needs to do something debug-related (like doing a single step), it will enter debug mode through a "breakpoint" instruction. The monitor code will then return directly to user space, bypassing its own saved registers if necessary (since we don't actually care about the trapped context, only the one that came before.) This adds three instructions to the common exception handling code, including one branch. It does not touch super-hot paths like the TLB miss handler. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
Generate a new set of OCD register definitions in asm/ocd.h and rename __mfdr() and __mtdr() to ocd_read() and ocd_write() respectively. The bitfield definitions are a lot more complete now, and they are entirely based on bit numbers, not masks. This is because OCD registers are frequently accessed from assembly code, where bit numbers are a lot more useful (can be fed directly to sbr, bfins, etc.) Bitfields that consist of more than one bit have two definitions: _START, which indicates the number of the first bit, and _SIZE, which indicates the number of bits. These directly correspond to the parameters taken by the bfextu, bfexts and bfins instructions. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
The 'H' bit is bit 29, while the 'R' bit doesn't exist. Luckily, we don't actually use any of the bits in question. Also update show_regs() to show the Debug Mask and Debug state bits. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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由 Haavard Skinnemoen 提交于
We really need to check TIF_RESTORE_SIGMASK before returning to userspace. The existing code does not necessarily do this. Define the work masks as a bitwise OR of the respective flags instead of a hardcoded hex value to make it easier to spot errors like this in the future. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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- 15 11月, 2007 1 次提交
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由 Haavard Skinnemoen 提交于
The enable bit was missing... Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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- 24 10月, 2007 1 次提交
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由 Haavard Skinnemoen 提交于
The latest sg changes introduce the following build errors on AVR32: include/asm/dma-mapping.h: In function ‘dma_map_sg’: include/asm/dma-mapping.h:220: error: implicit declaration of function ‘sg_page’ include/asm/dma-mapping.h:220: error: invalid operands to binary - include/asm/dma-mapping.h:221: error: implicit declaration of function ‘sg_virt’ include/asm/dma-mapping.h:221: warning: assignment makes pointer from integer without a cast include/asm/dma-mapping.h: In function ‘dma_sync_sg_for_device’: include/asm/dma-mapping.h:330: warning: passing argument 2 of ‘dma_cache_sync’ makes pointer from integer without a cast Fix it by including the correct header file, i.e. linux/scatterlist.h instead of asm/scatterlist.h. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com>
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