- 20 Jan, 2005 40 commits
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Tom Rini authored
When the update_process_times call was moved out of do_timer for the UP case, the replicator didn't track down the hiding and just added ifndef SMP. This removes the ifdefs and the indirection of calling another file for one function in a third file. I also removed the per-cpu multipler and counter. On some architectures (x86 and sparc64) these are set via /proc/profile setup_profiling_timer to increase the timer interrupt by a factor over HZ. However, this was not not implemented for ppc (like several other architectures), so it was just decrementing, testing, and setting per-cpu variables back to 1. Signed-off-by:
Milton Miller <miltonm@bga.com> Signed-off-by:
Tom Rini <trini@kernel.crashing.org> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Tom Rini authored
There is a problem in the TLB Miss (and Error, as they jump to the Miss handler) handlers. The problem is that when an app spans more than one L1 entry, we don't have all of the correct information, and do_page_fault() things a protection fault happened, when it didn't really. The fix for this is to modify the handlers slightly to force a TLB Error in this case. Lots of suggestions from: Joakim Tjernlund <joakim.tjernlund@lumentis.se> Signed-off-by:
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Tom Rini authored
Replace save_flags()/resore_flags() with spin_lock_irqsave() / spin_unlock_irqrestore() and document reasons for locking in the Qspan PCI code. Signed-off-by:
James Nelson <james4765@gmail.com> Signed-off-by:
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Tom Rini authored
Replace cli() function call with local_irq_disable() in shutdown code for MPC8xx platforms. Signed-off-by:
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Tom Rini authored
Replace cli() function calls with local_irq_disable() in shutdown / restart code for pal4. Signed-off-by:
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Tom Rini authored
Replace cli() function call with local_irq_disable() in restart code on APUS. Signed-off-by:
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Tom Rini authored
Replace save_flags()/resore_flags() with spin_lock_irqsave()/spin_unlock_irqrestore() and document reasons for locking. Signed-off-by:
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Tom Rini authored
Replace save_flags()/resore_flags() with spin_lock_irqsave()/spin_unlock_irqrestore() and document reasons for locking. Signed-off-by:
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Tom Rini authored
Replace save_flags()/restore_flags() with spin_lock_irqsave()/spin_unlock_irqrestore() and document reasons for using spinlocks. Signed-off-by:
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Kumar Gala authored
Convert gianfar ethernet driver from using an OCP to platform_device. Signed-off-by:
Kumar Gala <kumar.gala@freescale.com> Signed-off-by:
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Kumar Gala authored
Convert MPC8540 ADS, MPC8560 ADS, MPC8555 CDS and SBC8560 reference boards from using OCP to platform_device. Signed-off-by:
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Kumar Gala authored
- Described all devices available on current MPC85xx CPUs (mem & irq) - Added cpu descriptions for the MPC8540, MPC8541, MPC8541, MPC8555, MPC8555E, and MPC8560. * Removed OCP usage from MPC85xx sub-arch Signed-off-by:
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Kumar Gala authored
On most embedded PPC systems we either have a core CPU and chipset (MPC10x, TSI10x, Marvell, etc.) or a system-on-chip device (4xx, 8xx, 82xx, 85xx, etc.). Some of these sub-archs have been using the On Chip Peripheral (OCP) driver model. The functionality that OCP provide has been replaced by the generic driver model and platform_device. Also, some of these device may exist across a number of architectures (PPC, MIPS, ARM) such that some information that is shared between the architecture and driver needs to exist outside of either. The ppc_sys changes add a standard way for PowerPC systems to describe the devices and systems that exist in the sub-arch. Additionally, we are able to discover which system we are and manage which devices are actually registered and any platform specific fixups that may be needed. Signed-off-by:
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Benjamin Herrenschmidt authored
This patch fixes a warning by adding a missing function prototype for enable_kernel_altivec(). Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Benjamin Herrenschmidt authored
This patch updates the ppc32 cpu state save/restore code to deal with the Motorola/Freescale MPC7447A, used, among others, on recent Apple laptops. Signed-off-by:
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James Morris authored
This patch adds Netlink message types related to the TC action code, allowing finer grained SELinux control of this. Author: jamal <hadi@cyberus.ca> Signed-off-by:
James Morris <jmorris@redhat.com> Signed-off-by:
Stephen Smalley <sds@epoch.ncsc.mil> Signed-off-by:
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Serge Hallyn authored
The audit control messages are sent over netlink. Permission checks are done on the process receiving the message, which may not be the same as the process sending the message. This patch switches the netlink_send security hooks to calculate the effective capabilities based on the sender. Then audit_receive_msg performs capability checks based on that. It also introduces the CAP_AUDIT_WRITE and CAP_AUDIT_CONTROL capabilities, and replaces the previous CAP_SYS_ADMIN checks in audit code with the appropriate checks. - Simplified dummy_netlink_send given that dummy now keeps track of capabilities. - Many fixes based on feedback from <linux-audit@redhat.com> list. - Removed the netlink_msg_type helper function. - Switch to using CAP_AUDIT_WRITE and CAP_AUDIT_CONTROL. Signed-off-by:
Serge Hallyn <serue@us.ibm.com> Signed-off-by:
Chris Wright <chrisw@osdl.org> Signed-off-by:
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Oleg Nesterov authored
Introduces a __mod_page_state(offset, delta) function and converts mod_page_state() to use it. Unexports and staticizes page_states per cpu variable. text data bss dec hex filename 1818704 615884 0 2434588 25261c vmlinux-old 1817632 615884 0 2433516 2521ec vmlinux-new 1072 bytes. (Adds 64 bytes without CONFIG_SMP). Signed-off-by:
Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by:
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Paul Mackerras authored
This patch lets us use TIOCMIWAIT and TIOCGICOUNT from a 32-bit process on a 64-bit processor. TIOCMIWAIT uses the argument as a bitmap of things to wait for. The argument for TIOCGICOUNT points to a struct serial_icounter_struct, which only contains ints and arrays of int. Signed-off-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
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Benjamin Herrenschmidt authored
The recent oprofile changes for Motorola e500 broke oprofile for other CPUs. This patch fixes the build. Proper support for the G3/G4 PMCs would be interesting, and making sure the basic interrupt PC sampling still works on CPUs that don't have supported PMCs too... Signed-off-by:
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Daniel McNeil authored
This is a patch to generic_file_buffered_write() to correctly handle partial O_DIRECT writes (because of unallocated blocks) when there is more than 1 iovec. Without this patch, the code is writing the wrong iovec (it writes the first iovec a 2nd time). Included is a test program dio_bug.c that shows the problem by: writing 4k to offset 4k writing 4k to offset 12k writing 8k to offset 4k The result is that 8k write writes the 1st 4k of the buffer twice. $ rm f; ./dio_bug f wrong value offset 8k expected 0x33 got 0x11 wrong value offset 10k expected 0x44 got 0x22 with patch $ rm f; ./dio_bug f #define _GNU_SOURCE #include <sys/types.h> #include <unistd.h> #include <stdlib.h> #include <fcntl.h> #include <sys/uio.h> main(int argc, char **argv) { int fd; char *buf; int i; struct iovec v[2]; fd = open(argv[1], O_DIRECT|O_RDWR|O_CREAT, 0666); if (fd < 0) { perror("open"); exit(1); } buf = valloc(8192); lseek(fd, 0x1000, SEEK_SET); memset(buf, 0x11, 2048); memset(buf+2048, 0x22, 2048); i = write(fd, buf, 4096); /* 4k write of 0x11 and 0x22 at 4k */ lseek(fd, 0x3000, SEEK_SET); memset(buf, 0x55, 2048); memset(buf+2048, 0x66, 2048); i = write(fd, buf, 4096); /* 4k write of 0x55 and 0x66 at 12k */ lseek(fd, 0x1000, SEEK_SET); i = read(fd, buf, 4096); memset(buf+4096, 0x33 , 2048); memset(buf+4096+2048, 0x44 , 2048); v[0].iov_base = buf; v[0].iov_len = 4096; v[1].iov_base = buf + 4096; v[1].iov_len = 4096; lseek(fd, 0x1000, SEEK_SET); i = writev(fd, v, 2); /* 8k write of 0x11, 0x22, 0x33, 0x44 at 4k */ lseek(fd, 0x2000, SEEK_SET); i = read(fd, buf, 4096); if (buf[0] != 0x33) printf("wrong value offset 8k expected 0x33 got 0x%x\n", buf[0]); if (buf[2048] != 0x44) printf("wrong value offset 10k expected 0x44 got 0x%x\n", buf[2048]); } Signed-off-by: -
Steve Longerbeam authored
It appears that this statement got lost during patch merging. We don't want to free the node which we just added. Signed-off-by:
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Chris Wright authored
Mips RLIMIT_MEMLOCK incorrectly defaults to unlimited, it was confused with RLIMIT_NPROC. Found while consolidating resource.h headers. Signed-off-by:
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Andrew Morton authored
drivers/acpi/debug.c:22: parse error before string constant drivers/acpi/debug.c:22: warning: type defaults to `int' in declaration of `__MODULE_INFO' drivers/acpi/debug.c:22: warning: function declaration isn't a prototype drivers/acpi/debug.c:22: warning: data definition has no type or storage class drivers/acpi/debug.c:23: parse error before string constant drivers/acpi/debug.c:23: warning: type defaults to `int' in declaration of `__MODULE_INFO' drivers/acpi/debug.c:23: warning: function declaration isn't a prototype drivers/acpi/debug.c:23: warning: data definition has no type or storage class Signed-off-by:
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bk://linux-dj.bkbits.net/agpgartLinus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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Dave Jones authored
Spotted by Marco Cipullo Signed-off-by:Dave Jones <davej@redhat.com>
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bk://linux-dj.bkbits.net/cpufreqLinus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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Dave Jones authored
From: Hendrik Muhs Signed-off-by: -
bk://bk.arm.linux.org.uk/linux-2.6-rmkLinus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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Ben Dooks authored
Patch from Ben Dooks Remove static mapping for serial ports and change to using UPF_IOREMAP to allow the serial driver to automatically ioremap() the ports for us. Signed-off-by: Ben Dooks Signed-off-by: Russell King
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Ben Dooks authored
Patch from Ben Dooks _find_first_zero_bit_le and _find_next_zero_bit_le are missing the const from their pointer arguments, causing the following warnings: In file included from mm/page_alloc.c:34: include/linux/nodemask.h: In function `__first_unset_node': include/linux/nodemask.h:246: warning: passing arg 1 of `_find_first_zero_bit_le' discards qualifiers from pointer target type Signed-off-by: Ben Dooks Signed-off-by: Russell King
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Ingo Molnar authored
This re-implements the nonintrusive spin-polling loop for the SMP+PREEMPT spinlock/rwlock variants, using the new *_can_lock() primitives. (The patch also adds *_can_lock() to the UP branch of spinlock.h, for completeness.) build- and boot-tested on x86 SMP+PREEMPT and SMP+!PREEMPT. Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Ingo Molnar authored
This renames the x86 implementation of the spinlock_t's 'lock' field to 'slock', to protect against spinlock_t/rwlock_t type mismatches. This way, if you use a spinlock where a rwlock is expected (or vice versa), you'll get an obvious compile failure. build- and boot-tested on x86 SMP+PREEMPT and SMP+!PREEMPT. Signed-off-by:
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Linus Torvalds authored
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Linus Torvalds authored
Trivial but untested (but also currently unused - wait for BKL PREEMPT to start using them soon).
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Linus Torvalds authored
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Ingo Molnar authored
This introduces the following 3 new locking primitives: spin_can_lock(lock) read_can_lock(lock) write_can_lock(lock) which are a nonintrusive test to check whether the real (intrusive) trylock op would succeed or not. Semantics and naming is completely symmetric to the trylock counterpart. Architectures that want to support PREEMPT will need to add these definitions. Signed-off-by:
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Ingo Molnar authored
cleanup: remove stale semicolon from linux/spinlock.h and stale space from asm-i386/spinlock.h. Ingo Signed-off-by:
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Linus Torvalds authored
It's a bootup dependancy, you can't just increase it randomly, and it breaks booting with LILO. Pointed out by Janos Farkas and Adrian Bunk. Cset exclude: ak@suse.de[torvalds]|ChangeSet|20050115232300|01174
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Linus Torvalds authored
rwlocks can't be "locked". They can be "locked for read", or "locked for write", but not both. The confusion this caused is evident in the long discussion about this on linux-kernel ;)
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