diff options
| author | Paul Mackerras <paulus@samba.org> | 2006-06-12 17:53:34 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-06-12 17:53:34 +1000 |
| commit | 7a0c58d0513c246ac5438ef4a55ce8b93395ae0e (patch) | |
| tree | d18f58349ced242aa62e622e381e60933f71d451 | |
| parent | 6218a761bbc27acc65248c80024875bcc06d52b1 (diff) | |
| parent | 289a1e995e74734b5ec76ca8a5490058f4fecc24 (diff) | |
| download | linux-7a0c58d0513c246ac5438ef4a55ce8b93395ae0e.tar.bz2 | |
Merge branch 'merge'
140 files changed, 1353 insertions, 703 deletions
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt index c61d8b876fdb..4710845dbac4 100644 --- a/Documentation/memory-barriers.txt +++ b/Documentation/memory-barriers.txt @@ -19,6 +19,7 @@ Contents: - Control dependencies. - SMP barrier pairing. - Examples of memory barrier sequences. + - Read memory barriers vs load speculation. (*) Explicit kernel barriers. @@ -248,7 +249,7 @@ And there are a number of things that _must_ or _must_not_ be assumed: we may get either of: STORE *A = X; Y = LOAD *A; - STORE *A = Y; + STORE *A = Y = X; ========================= @@ -344,9 +345,12 @@ Memory barriers come in four basic varieties: (4) General memory barriers. - A general memory barrier is a combination of both a read memory barrier - and a write memory barrier. It is a partial ordering over both loads and - stores. + A general memory barrier gives a guarantee that all the LOAD and STORE + operations specified before the barrier will appear to happen before all + the LOAD and STORE operations specified after the barrier with respect to + the other components of the system. + + A general memory barrier is a partial ordering over both loads and stores. General memory barriers imply both read and write memory barriers, and so can substitute for either. @@ -546,9 +550,9 @@ write barrier, though, again, a general barrier is viable: =============== =============== a = 1; <write barrier> - b = 2; x = a; + b = 2; x = b; <read barrier> - y = b; + y = a; Or: @@ -563,6 +567,18 @@ Or: Basically, the read barrier always has to be there, even though it can be of the "weaker" type. +[!] Note that the stores before the write barrier would normally be expected to +match the loads after the read barrier or data dependency barrier, and vice +versa: + + CPU 1 CPU 2 + =============== =============== + a = 1; }---- --->{ v = c + b = 2; } \ / { w = d + <write barrier> \ <read barrier> + c = 3; } / \ { x = a; + d = 4; }---- --->{ y = b; + EXAMPLES OF MEMORY BARRIER SEQUENCES ------------------------------------ @@ -600,8 +616,8 @@ STORE B, STORE C } all occuring before the unordered set of { STORE D, STORE E | | +------+ +-------+ : : | - | Sequence in which stores committed to memory system - | by CPU 1 + | Sequence in which stores are committed to the + | memory system by CPU 1 V @@ -683,14 +699,12 @@ then the following will occur: | : : | | | : : | CPU 2 | | +-------+ | | - \ | X->9 |------>| | - \ +-------+ | | - ----->| B->2 | | | - +-------+ | | - Makes sure all effects ---> ddddddddddddddddd | | - prior to the store of C +-------+ | | - are perceptible to | B->2 |------>| | - successive loads +-------+ | | + | | X->9 |------>| | + | +-------+ | | + Makes sure all effects ---> \ ddddddddddddddddd | | + prior to the store of C \ +-------+ | | + are perceptible to ----->| B->2 |------>| | + subsequent loads +-------+ | | : : +-------+ @@ -699,73 +713,239 @@ following sequence of events: CPU 1 CPU 2 ======================= ======================= + { A = 0, B = 9 } STORE A=1 - STORE B=2 - STORE C=3 <write barrier> - STORE D=4 - STORE E=5 - LOAD A + STORE B=2 LOAD B - LOAD C - LOAD D - LOAD E + LOAD A Without intervention, CPU 2 may then choose to perceive the events on CPU 1 in some effectively random order, despite the write barrier issued by CPU 1: - +-------+ : : - | | +------+ - | |------>| C=3 | } - | | : +------+ } - | | : | A=1 | } - | | : +------+ } - | CPU 1 | : | B=2 | }--- - | | +------+ } \ - | | wwwwwwwwwwwww} \ - | | +------+ } \ : : +-------+ - | | : | E=5 | } \ +-------+ | | - | | : +------+ } \ { | C->3 |------>| | - | |------>| D=4 | } \ { +-------+ : | | - | | +------+ \ { | E->5 | : | | - +-------+ : : \ { +-------+ : | | - Transfer -->{ | A->1 | : | CPU 2 | - from CPU 1 { +-------+ : | | - to CPU 2 { | D->4 | : | | - { +-------+ : | | - { | B->2 |------>| | - +-------+ | | - : : +-------+ - - -If, however, a read barrier were to be placed between the load of C and the -load of D on CPU 2, then the partial ordering imposed by CPU 1 will be -perceived correctly by CPU 2. + +-------+ : : : : + | | +------+ +-------+ + | |------>| A=1 |------ --->| A->0 | + | | +------+ \ +-------+ + | CPU 1 | wwwwwwwwwwwwwwww \ --->| B->9 | + | | +------+ | +-------+ + | |------>| B=2 |--- | : : + | | +------+ \ | : : +-------+ + +-------+ : : \ | +-------+ | | + ---------->| B->2 |------>| | + | +-------+ | CPU 2 | + | | A->0 |------>| | + | +-------+ | | + | : : +-------+ + \ : : + \ +-------+ + ---->| A->1 | + +-------+ + : : - +-------+ : : - | | +------+ - | |------>| C=3 | } - | | : +------+ } - | | : | A=1 | }--- - | | : +------+ } \ - | CPU 1 | : | B=2 | } \ - | | +------+ \ - | | wwwwwwwwwwwwwwww \ - | | +------+ \ : : +-------+ - | | : | E=5 | } \ +-------+ | | - | | : +------+ }--- \ { | C->3 |------>| | - | |------>| D=4 | } \ \ { +-------+ : | | - | | +------+ \ -->{ | B->2 | : | | - +-------+ : : \ { +-------+ : | | - \ { | A->1 | : | CPU 2 | - \ +-------+ | | - At this point the read ----> \ rrrrrrrrrrrrrrrrr | | - barrier causes all effects \ +-------+ | | - prior to the storage of C \ { | E->5 | : | | - to be perceptible to CPU 2 -->{ +-------+ : | | - { | D->4 |------>| | - +-------+ | | - : : +-------+ + +If, however, a read barrier were to be placed between the load of E and the +load of A on CPU 2: + + CPU 1 CPU 2 + ======================= ======================= + { A = 0, B = 9 } + STORE A=1 + <write barrier> + STORE B=2 + LOAD B + <read barrier> + LOAD A + +then the partial ordering imposed by CPU 1 will be perceived correctly by CPU +2: + + +-------+ : : : : + | | +------+ +-------+ + | |------>| A=1 |------ --->| A->0 | + | | +------+ \ +-------+ + | CPU 1 | wwwwwwwwwwwwwwww \ --->| B->9 | + | | +------+ | +-------+ + | |------>| B=2 |--- | : : + | | +------+ \ | : : +-------+ + +-------+ : : \ | +-------+ | | + ---------->| B->2 |------>| | + | +-------+ | CPU 2 | + | : : | | + | : : | | + At this point the read ----> \ rrrrrrrrrrrrrrrrr | | + barrier causes all effects \ +-------+ | | + prior to the storage of B ---->| A->1 |------>| | + to be perceptible to CPU 2 +-------+ | | + : : +-------+ + + +To illustrate this more completely, consider what could happen if the code +contained a load of A either side of the read barrier: + + CPU 1 CPU 2 + ======================= ======================= + { A = 0, B = 9 } + STORE A=1 + <write barrier> + STORE B=2 + LOAD B + LOAD A [first load of A] + <read barrier> + LOAD A [second load of A] + +Even though the two loads of A both occur after the load of B, they may both +come up with different values: + + +-------+ : : : : + | | +------+ +-------+ + | |------>| A=1 |------ --->| A->0 | + | | +------+ \ +-------+ + | CPU 1 | wwwwwwwwwwwwwwww \ --->| B->9 | + | | +------+ | +-------+ + | |------>| B=2 |--- | : : + | | +------+ \ | : : +-------+ + +-------+ : : \ | +-------+ | | + ---------->| B->2 |------>| | + | +-------+ | CPU 2 | + | : : | | + | : : | | + | +-------+ | | + | | A->0 |------>| 1st | + | +-------+ | | + At this point the read ----> \ rrrrrrrrrrrrrrrrr | | + barrier causes all effects \ +-------+ | | + prior to the storage of B ---->| A->1 |------>| 2nd | + to be perceptible to CPU 2 +-------+ | | + : : +-------+ + + +But it may be that the update to A from CPU 1 becomes perceptible to CPU 2 +before the read barrier completes anyway: + + +-------+ : : : : + | | +------+ +-------+ + | |------>| A=1 |------ --->| A->0 | + | | +------+ \ +-------+ + | CPU 1 | wwwwwwwwwwwwwwww \ --->| B->9 | + | | +------+ | +-------+ + | |------>| B=2 |--- | : : + | | +------+ \ | : : +-------+ + +-------+ : : \ | +-------+ | | + ---------->| B->2 |------>| | + | +-------+ | CPU 2 | + | : : | | + \ : : | | + \ +-------+ | | + ---->| A->1 |------>| 1st | + +-------+ | | + rrrrrrrrrrrrrrrrr | | + +-------+ | | + | A->1 |------>| 2nd | + +-------+ | | + : : +-------+ + + +The guarantee is that the second load will always come up with A == 1 if the +load of B came up with B == 2. No such guarantee exists for the first load of +A; that may come up with either A == 0 or A == 1. + + +READ MEMORY BARRIERS VS LOAD SPECULATION +---------------------------------------- + +Many CPUs speculate with loads: that is they see that they will need to load an +item from memory, and they find a time where they're not using the bus for any +other loads, and so do the load in advance - even though they haven't actually +got to that point in the instruction execution flow yet. This permits the +actual load instruction to potentially complete immediately because the CPU +already has the value to hand. + +It may turn out that the CPU didn't actually need the value - perhaps because a +branch circumvented the load - in which case it can discard the value or just +cache it for later use. + +Consider: + + CPU 1 CPU 2 + ======================= ======================= + LOAD B + DIVIDE } Divide instructions generally + DIVIDE } take a long time to perform + LOAD A + +Which might appear as this: + + : : +-------+ + +-------+ | | + --->| B->2 |------>| | + +-------+ | CPU 2 | + : :DIVIDE | | + +-------+ | | + The CPU being busy doing a ---> --->| A->0 |~~~~ | | + division speculates on the +-------+ ~ | | + LOAD of A : : ~ | | + : :DIVIDE | | + : : ~ | | + Once the divisions are complete --> : : ~-->| | + the CPU can then perform the : : | | + LOAD with immediate effect : : +-------+ + + +Placing a read barrier or a data dependency barrier just before the second +load: + + CPU 1 CPU 2 + ======================= ======================= + LOAD B + DIVIDE + DIVIDE + <read barrier> + LOAD A + +will force any value speculatively obtained to be reconsidered to an extent +dependent on the type of barrier used. If there was no change made to the +speculated memory location, then the speculated value will just be used: + + : : +-------+ + +-------+ | | + --->| B->2 |------>| | + +-------+ | CPU 2 | + : :DIVIDE | | + +-------+ | | + The CPU being busy doing a ---> --->| A->0 |~~~~ | | + division speculates on the +-------+ ~ | | + LOAD of A : : ~ | | + : :DIVIDE | | + : : ~ | | + : : ~ | | + rrrrrrrrrrrrrrrr~ | | + : : ~ | | + : : ~-->| | + : : | | + : : +-------+ + + +but if there was an update or an invalidation from another CPU pending, then +the speculation will be cancelled and the value reloaded: + + : : +-------+ + +-------+ | | + --->| B->2 |------>| | + +-------+ | CPU 2 | + : :DIVIDE | | + +-------+ | | + The CPU being busy doing a ---> --->| A->0 |~~~~ | | + division speculates on the +-------+ ~ | | + LOAD of A : : ~ | | + : :DIVIDE | | + : : ~ | | + : : ~ | | + rrrrrrrrrrrrrrrrr | | + +-------+ | | + The speculation is discarded ---> --->| A->1 |------>| | + and an updated value is +-------+ | | + retrieved : : +-------+ ======================== @@ -901,7 +1081,7 @@ IMPLICIT KERNEL MEMORY BARRIERS =============================== Some of the other functions in the linux kernel imply memory barriers, amongst -which are locking, scheduling and memory allocation functions. +which are locking and scheduling functions. This specification is a _minimum_ guarantee; any particular architecture may provide more substantial guarantees, but these may not be relied upon outside @@ -966,6 +1146,20 @@ equivalent to a full barrier, but a LOCK followed by an UNLOCK is not. barriers is that the effects instructions outside of a critical section may seep into the inside of the critical section. +A LOCK followed by an UNLOCK may not be assumed to be full memory barrier +because it is possible for an access preceding the LOCK to happen after the +LOCK, and an access following the UNLOCK to happen before the UNLOCK, and the +two accesses can themselves then cross: + + *A = a; + LOCK + UNLOCK + *B = b; + +may occur as: + + LOCK, STORE *B, STORE *A, UNLOCK + Locks and semaphores may not provide any guarantee of ordering on UP compiled systems, and so cannot be counted on in such a situation to actually achieve anything at all - especially with respect to I/O accesses - unless combined @@ -1016,8 +1210,6 @@ Other functions that imply barriers: (*) schedule() and similar imply full memory barriers. - (*) Memory allocation and release functions imply full memory barriers. - ================================= INTER-CPU LOCKING BARRIER EFFECTS diff --git a/Documentation/serial/driver b/Documentation/serial/driver index df82116a9f26..88ad615dd338 100644 --- a/Documentation/serial/driver +++ b/Documentation/serial/driver @@ -214,12 +214,13 @@ hardware. The interaction of the iflag bits is as follows (parity error given as an example): Parity error INPCK IGNPAR - None n/a n/a character received - Yes n/a 0 character discarded - Yes 0 1 character received, marked as + n/a 0 n/a character received, marked as TTY_NORMAL - Yes 1 1 character received, marked as + None 1 n/a character received, marked as + TTY_NORMAL + Yes 1 0 character received, marked as TTY_PARITY + Yes 1 1 character discarded Other flags may be used (eg, xon/xoff characters) if your hardware supports hardware "soft" flow control. diff --git a/MAINTAINERS b/MAINTAINERS index 74d71cafb17c..c3c5842402df 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -568,6 +568,18 @@ L: linuxppc-dev@ozlabs.org W: http://www.penguinppc.org/ppc64/ S: Supported +BROADCOM BNX2 GIGABIT ETHERNET DRIVER +P: Michael Chan +M: mchan@broadcom.com +L: netdev@vger.kernel.org +S: Supported + +BROADCOM TG3 GIGABIT ETHERNET DRIVER +P: Michael Chan +M: mchan@broadcom.com +L: netdev@vger.kernel.org +S: Supported + BTTV VIDEO4LINUX DRIVER P: Mauro Carvalho Chehab M: mchehab@infradead.org @@ -1877,6 +1889,11 @@ L: linux-kernel@vger.kernel.org W: http://www.atnf.csiro.au/~rgooch/linux/kernel-patches.html S: Maintained +MULTIMEDIA CARD SUBSYSTEM +P: Russell King +M: rmk+mmc@arm.linux.org.uk +S: Maintained + MULTISOUND SOUND DRIVER P: Andrew Veliath M: andrewtv@usa.net @@ -1,8 +1,8 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 17 -EXTRAVERSION =-rc5 -NAME=Lordi Rules +EXTRAVERSION =-rc6 +NAME=Crazed Snow-Weasel # *DOCUMENTATION* # To see a list of typical targets execute "make help" diff --git a/arch/alpha/kernel/alpha_ksyms.c b/arch/alpha/kernel/alpha_ksyms.c index c645c5e14786..2b245ad731ee 100644 --- a/arch/alpha/kernel/alpha_ksyms.c +++ b/arch/alpha/kernel/alpha_ksyms.c @@ -182,7 +182,6 @@ EXPORT_SYMBOL(smp_num_cpus); EXPORT_SYMBOL(smp_call_function); EXPORT_SYMBOL(smp_call_function_on_cpu); EXPORT_SYMBOL(_atomic_dec_and_lock); -EXPORT_SYMBOL(cpu_present_mask); #endif /* CONFIG_SMP */ /* diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index 9924fd07743a..c760a831fd1a 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -94,7 +94,7 @@ common_shutdown_1(void *generic_ptr) if (cpuid != boot_cpuid) { flags |= 0x00040000UL; /* "remain halted" */ *pflags = flags; - clear_bit(cpuid, &cpu_present_mask); + cpu_clear(cpuid, cpu_present_map); halt(); } #endif @@ -120,8 +120,8 @@ common_shutdown_1(void *generic_ptr) #ifdef CONFIG_SMP /* Wait for the secondaries to halt. */ - cpu_clear(boot_cpuid, cpu_possible_map); - while (cpus_weight(cpu_possible_map)) + cpu_clear(boot_cpuid, cpu_present_map); + while (cpus_weight(cpu_present_map)) barrier(); #endif diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index 185255416e85..4dc273e537fd 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -68,7 +68,6 @@ enum ipi_message_type { static int smp_secondary_alive __initdata = 0; /* Which cpus ids came online. */ -cpumask_t cpu_present_mask; cpumask_t cpu_online_map; EXPORT_SYMBOL(cpu_online_map); @@ -439,7 +438,7 @@ setup_smp(void) if ((cpu->flags & 0x1cc) == 0x1cc) { smp_num_probed++; /* Assume here that "whami" == index */ - cpu_set(i, cpu_present_mask); + cpu_set(i, cpu_present_map); cpu->pal_revision = boot_cpu_palrev; } @@ -450,11 +449,10 @@ setup_smp(void) } } else { smp_num_probed = 1; - cpu_set(boot_cpuid, cpu_present_mask); } - printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_mask = %lx\n", - smp_num_probed, cpu_possible_map.bits[0]); + printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_map = %lx\n", + smp_num_probed, cpu_present_map.bits[0]); } /* @@ -473,7 +471,7 @@ smp_prepare_cpus(unsigned int max_cpus) /* Nothing to do on a UP box, or when told not to. */ if (smp_num_probed == 1 || max_cpus == 0) { - cpu_present_mask = cpumask_of_cpu(boot_cpuid); + cpu_present_map = cpumask_of_cpu(boot_cpuid); printk(KERN_INFO "SMP mode deactivated.\n"); return; } @@ -486,10 +484,6 @@ smp_prepare_cpus(unsigned int max_cpus) void __devinit smp_prepare_boot_cpu(void) { - /* - * Mark the boot cpu (current cpu) as online - */ - cpu_set(smp_processor_id(), cpu_online_map); } int __devinit diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c index 5f84417eeb7b..2551fb49ae09 100644 --- a/arch/alpha/kernel/sys_titan.c +++ b/arch/alpha/kernel/sys_titan.c @@ -66,7 +66,7 @@ titan_update_irq_hw(unsigned long mask) register int bcpu = boot_cpuid; #ifdef CONFIG_SMP - cpumask_t cpm = cpu_present_mask; + cpumask_t cpm = cpu_present_map; volatile unsigned long *dim0, *dim1, *dim2, *dim3; unsigned long mask0, mask1, mask2, mask3, dummy; diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 5d3acff8c596..d22f38b957db 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -101,7 +101,7 @@ config DEBUG_S3C2410_UART help Choice for UART for kernel low-level using S3C2410 UARTS, should be between zero and two. The port must have been - initalised by the boot-loader before use. + initialised by the boot-loader before use. The uncompressor code port configuration is now handled by CONFIG_S3C2410_LOWLEVEL_UART_PORT. diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c index 9be01b0c3f48..e24566b88a78 100644 --- a/arch/arm/mach-ep93xx/ts72xx.c +++ b/arch/arm/mach-ep93xx/ts72xx.c @@ -111,21 +111,21 @@ static void __init ts72xx_map_io(void) } } -static unsigned char ts72xx_rtc_readb(unsigned long addr) +static unsigned char ts72xx_rtc_readbyte(unsigned long addr) { __raw_writeb(addr, TS72XX_RTC_INDEX_VIRT_BASE); return __raw_readb(TS72XX_RTC_DATA_VIRT_BASE); } -static void ts72xx_rtc_writeb(unsigned char value, unsigned long addr) +static void ts72xx_rtc_writebyte(unsigned char value, unsigned long addr) { __raw_writeb(addr, TS72XX_RTC_INDEX_VIRT_BASE); __raw_writeb(value, TS72XX_RTC_DATA_VIRT_BASE); } static struct m48t86_ops ts72xx_rtc_ops = { - .readb = ts72xx_rtc_readb, - .writeb = ts72xx_rtc_writeb, + .readbyte = ts72xx_rtc_readbyte, + .writebyte = ts72xx_rtc_writebyte, }; static struct platform_device ts72xx_rtc_device = { diff --git a/arch/arm/mach-ixp23xx/core.c b/arch/arm/mach-ixp23xx/core.c index 092ee12ced42..affd1d5d7440 100644 --- a/arch/arm/mach-ixp23xx/core.c +++ b/arch/arm/mach-ixp23xx/core.c @@ -178,8 +178,12 @@ static int ixp23xx_irq_set_type(unsigned int irq, unsigned int type) static void ixp23xx_irq_mask(unsigned int irq) { - volatile unsigned long *intr_reg = IXP23XX_INTR_EN1 + (irq / 32); + volatile unsigned long *intr_reg; + if (irq >= 56) + irq += 8; + + intr_reg = IXP23XX_INTR_EN1 + (irq / 32); *intr_reg &= ~(1 << (irq % 32)); } @@ -199,17 +203,25 @@ static void ixp23xx_irq_ack(unsigned int irq) */ static void ixp23xx_irq_level_unmask(unsigned int irq) { - volatile unsigned long *intr_reg = IXP23XX_INTR_EN1 + (irq / 32); + volatile unsigned long *intr_reg; ixp23xx_irq_ack(irq); + if (irq >= 56) + irq += 8; + + intr_reg = IXP23XX_INTR_EN1 + (irq / 32); *intr_reg |= (1 << (irq % 32)); } static void ixp23xx_irq_edge_unmask(unsigned int irq) { - volatile unsigned long *intr_reg = IXP23XX_INTR_EN1 + (irq / 32); + volatile unsigned long *intr_reg; + + if (irq >= 56) + irq += 8; + intr_reg = IXP23XX_INTR_EN1 + (irq / 32); *intr_reg |= (1 << (irq % 32)); } diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig index 2a39f9e481ad..3b23f43cb160 100644 --- a/arch/arm/mach-ixp4xx/Kconfig +++ b/arch/arm/mach-ixp4xx/Kconfig @@ -141,7 +141,7 @@ config IXP4XX_INDIRECT_PCI 2) If > 64MB of memory space is required, the IXP4xx can be configured to use indirect registers to access PCI This allows for up to 128MB (0x48000000 to 0x4fffffff) of memory on the bus. - The disadvantadge of this is that every PCI access requires + The disadvantage of this is that every PCI access requires three local register accesses plus a spinlock, but in some cases the performance hit is acceptable. In addition, you cannot mmap() PCI devices in this case due to the indirect nature diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c index 02e188d98e7d..b307f11951df 100644 --- a/arch/arm/mach-pxa/mainstone.c +++ b/arch/arm/mach-pxa/mainstone.c @@ -493,6 +493,7 @@ static void __init mainstone_map_io(void) MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)") /* Maintainer: MontaVista Software Inc. */ .phys_io = 0x40000000, + .boot_params = 0xa0000100, /* BLOB boot parameter setting */ .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, .map_io = mainstone_map_io, .init_irq = mainstone_init_irq, diff --git a/arch/arm/mach-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig index ce7d81000695..970f98dadffc 100644 --- a/arch/arm/mach-s3c2410/Kconfig +++ b/arch/arm/mach-s3c2410/Kconfig @@ -170,7 +170,7 @@ config S3C2410_PM_DEBUG depends on ARCH_S3C2410 && PM help Say Y here if you want verbose debugging from the PM Suspend and - Resume code. See `Documentation/arm/Samsing-S3C24XX/Suspend.txt` + Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt> for more information. config S3C2410_PM_CHECK diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c index 2e3b643a4dc4..1649a175a206 100644 --- a/arch/i386/kernel/acpi/earlyquirk.c +++ b/arch/i386/kernel/acpi/earlyquirk.c @@ -5,17 +5,34 @@ #include <linux/init.h> #include <linux/kernel.h> #include <linux/pci.h> +#include <linux/acpi.h> + #include <asm/pci-direct.h> #include <asm/acpi.h> #include <asm/apic.h> +#ifdef CONFIG_ACPI + +static int nvidia_hpet_detected __initdata; + +static int __init nvidia_hpet_check(unsigned long phys, unsigned long size) +{ + nvidia_hpet_detected = 1; + return 0; +} +#endif + static int __init check_bridge(int vendor, int device) { #ifdef CONFIG_ACPI - /* According to Nvidia all timer overrides are bogus. Just ignore - them all. */ + /* According to Nvidia all timer overrides are bogus unless HPET + is enabled. */ if (vendor == PCI_VENDOR_ID_NVIDIA) { - acpi_skip_timer_override = 1; + nvidia_hpet_detected = 0; + acpi_table_parse(ACPI_HPET, nvidia_hpet_check); + if (nvidia_hpet_detected == 0) { + acpi_skip_timer_override = 1; + } } #endif if (vendor == PCI_VENDOR_ID_ATI && timer_over_8254 == 1) { diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index 846e1639ef7c..dd6b0e3386ce 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -1547,15 +1547,18 @@ void __init setup_arch(char **cmdline_p) if (efi_enabled) efi_map_memmap(); -#ifdef CONFIG_X86_IO_APIC - check_acpi_pci(); /* Checks more than just ACPI actually */ -#endif - #ifdef CONFIG_ACPI /* * Parse the ACPI tables for possible boot-time SMP configuration. */ acpi_boot_table_init(); +#endif + +#ifdef CONFIG_X86_IO_APIC + check_acpi_pci(); /* Checks more than just ACPI actually */ +#endif + +#ifdef CONFIG_ACPI acpi_boot_init(); #if defined(CONFIG_SMP) && defined(CONFIG_X86_PC) diff --git a/arch/mips/au1000/common/prom.c b/arch/mips/au1000/common/prom.c index 9c171afd9a53..ae7d8c57bf3f 100644 --- a/arch/mips/au1000/common/prom.c +++ b/arch/mips/au1000/common/prom.c @@ -1,10 +1,9 @@ /* * * BRIEF MODULE DESCRIPTION - * PROM library initialisation code, assuming a version of - * pmon is the boot code. + * PROM library initialisation code, assuming YAMON is the boot loader. * - * Copyright 2000,2001 MontaVista Software Inc. + * Copyright 2000, 2001, 2006 MontaVista Software Inc. * Author: MontaVista Software, Inc. * ppopov@mvista.com or source@mvista.com * @@ -49,9 +48,9 @@ extern char **prom_argv, **prom_envp; typedef struct { - char *name; -/* char *val; */ -}t_env_var; + char *name; + char *val; +} t_env_var; char * prom_getcmdline(void) @@ -85,21 +84,16 @@ char *prom_getenv(char *envname) { /* * Return a pointer to the given environment variable. - * Environment variables are stored in the form of "memsize=64". */ t_env_var *env = (t_env_var *)prom_envp; - int i; - - i = strlen(envname); - while(env->name) { - if(strncmp(envname, env->name, i) == 0) { - return(env->name + strlen(envname) + 1); - } + while (env->name) { + if (strcmp(envname, env->name) == 0) + return env->val; env++; } - return(NULL); + return NULL; } inline unsigned char str2hexnum(unsigned char c) diff --git a/arch/mips/au1000/common/sleeper.S b/arch/mips/au1000/common/sleeper.S index 44dac3b0df3b..683d9da84b66 100644 --- a/arch/mips/au1000/common/sleeper.S +++ b/arch/mips/au1000/common/sleeper.S @@ -112,6 +112,11 @@ sdsleep: mtc0 k0, CP0_PAGEMASK lw k0, 0x14(sp) mtc0 k0, CP0_CONFIG + + /* We need to catch the ealry Alchemy SOCs with + * the write-only Config[OD] bit and set it back to one... + */ + jal au1x00_fixup_config_od lw $1, PT_R1(sp) lw $2, PT_R2(sp) lw $3, PT_R3(sp) diff --git a/arch/mips/ddb5xxx/ddb5476/dbg_io.c b/arch/mips/ddb5xxx/ddb5476/dbg_io.c index 85e9e5013679..f2296a999953 100644 --- a/arch/mips/ddb5xxx/ddb5476/dbg_io.c +++ b/arch/mips/ddb5xxx/ddb5476/dbg_io.c @@ -86,7 +86,7 @@ void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop) /* disable interrupts */ UART16550_WRITE(OFS_INTR_ENABLE, 0); - /* set up buad rate */ + /* set up baud rate */ { uint32 divisor; diff --git a/arch/mips/ddb5xxx/ddb5477/kgdb_io.c b/arch/mips/ddb5xxx/ddb5477/kgdb_io.c index 1d18d590495b..385bbdb10170 100644 --- a/arch/mips/ddb5xxx/ddb5477/kgdb_io.c +++ b/arch/mips/ddb5xxx/ddb5477/kgdb_io.c @@ -86,7 +86,7 @@ void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop) /* disable interrupts */ UART16550_WRITE(OFS_INTR_ENABLE, 0); - /* set up buad rate */ + /* set up baud rate */ { uint32 divisor; diff --git a/arch/mips/gt64120/ev64120/serialGT.c b/arch/mips/gt64120/ev64120/serialGT.c index 16e34a546e54..8f0d835491ff 100644 --- a/arch/mips/gt64120/ev64120/serialGT.c +++ b/arch/mips/gt64120/ev64120/serialGT.c @@ -149,7 +149,7 @@ void serial_set(int channel, unsigned long baud) #else /* * Note: Set baud rate, hardcoded here for rate of 115200 - * since became unsure of above "buad rate" algorithm (??). + * since became unsure of above "baud rate" algorithm (??). */ outreg(channel, LCR, 0x83); outreg(channel, DLM, 0x00); // See note above diff --git a/arch/mips/gt64120/momenco_ocelot/dbg_io.c b/arch/mips/gt64120/momenco_ocelot/dbg_io.c index 8720bccfdea2..f0a6a38fcf4d 100644 --- a/arch/mips/gt64120/momenco_ocelot/dbg_io.c +++ b/arch/mips/gt64120/momenco_ocelot/dbg_io.c @@ -73,7 +73,7 @@ void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop) /* disable interrupts */ UART16550_WRITE(OFS_INTR_ENABLE, 0); - /* set up buad rate */ + /* set up baud rate */ { uint32 divisor; diff --git a/arch/mips/ite-boards/generic/dbg_io.c b/arch/mips/ite-boards/generic/dbg_io.c index c4f8530fd07e..6a7ccaf93502 100644 --- a/arch/mips/ite-boards/generic/dbg_io.c +++ b/arch/mips/ite-boards/generic/dbg_io.c @@ -72,7 +72,7 @@ void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop) /* disable interrupts */ UART16550_WRITE(OFS_INTR_ENABLE, 0); - /* set up buad rate */ + /* set up baud rate */ { uint32 divisor; diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c index 47a087b6c11b..d268827c62bd 100644 --- a/arch/mips/kernel/cpu-bugs64.c +++ b/arch/mips/kernel/cpu-bugs64.c @@ -206,7 +206,7 @@ static inline void check_daddi(void) "daddi %0, %1, %3\n\t" ".set pop" : "=r" (v), "=&r" (tmp) - : "I" (0xffffffffffffdb9a), "I" (0x1234)); + : "I" (0xffffffffffffdb9aUL), "I" (0x1234)); set_except_vector(12, handler); local_irq_restore(flags); @@ -224,7 +224,7 @@ static inline void check_daddi(void) "dsrl %1, %1, 1\n\t" "daddi %0, %1, %3" : "=r" (v), "=&r" (tmp) - : "I" (0xffffffffffffdb9a), "I" (0x1234)); + : "I" (0xffffffffffffdb9aUL), "I" (0x1234)); set_except_vector(12, handler); local_irq_restore(flags); @@ -280,7 +280,7 @@ static inline void check_daddiu(void) "daddu %1, %2\n\t" ".set pop" : "=&r" (v), "=&r" (w), "=&r" (tmp) - : "I" (0xffffffffffffdb9a), "I" (0x1234)); + : "I" (0xffffffffffffdb9aUL), "I" (0x1234)); if (v == w) { printk("no.\n"); @@ -296,7 +296,7 @@ static inline void check_daddiu(void) "addiu %1, $0, %4\n\t" "daddu %1, %2" : "=&r" (v), "=&r" (w), "=&r" (tmp) - : "I" (0xffffffffffffdb9a), "I" (0x1234)); + : "I" (0xffffffffffffdb9aUL), "I" (0x1234)); if (v == w) { printk("yes.\n"); diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index bef3e2dc7c52..8c2c359a05f4 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -655,7 +655,7 @@ static inline void cpu_probe_sibyte(struct cpuinfo_mips *c) case PRID_IMP_SB1: c->cputype = CPU_SB1; /* FPU in pass1 is known to have issues. */ - if ((c->processor_id & 0xff) < 0x20) + if ((c->processor_id & 0xff) < 0x02) c->options &= ~(MIPS_CPU_FPU | MIPS_CPU_32FPR); break; case PRID_IMP_SB1A: diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c index e54a7f442f8a..d7bf0215bc1d 100644 --- a/arch/mips/kernel/module.c +++ b/arch/mips/kernel/module.c @@ -288,6 +288,9 @@ int apply_relocate(Elf_Shdr *sechdrs, const char *strtab, sym = (Elf_Sym *)sechdrs[symindex].sh_addr + ELF_MIPS_R_SYM(rel[i]); if (!sym->st_value) { + /* Ignore unresolved weak symbol */ + if (ELF_ST_BIND(sym->st_info) == STB_WEAK) + continue; printk(KERN_WARNING "%s: Unknown symbol %s\n", me->name, strtab + sym->st_name); return -ENOENT; @@ -325,6 +328,9 @@ int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab, sym = (Elf_Sym *)sechdrs[symindex].sh_addr + ELF_MIPS_R_SYM(rel[i]); if (!sym->st_value) { + /* Ignore unresolved weak symbol */ + if (ELF_ST_BIND(sym->st_info) == STB_WEAK) + continue; printk(KERN_WARNING "%s: Unknown symbol %s\n", me->name, strtab + sym->st_name); return -ENOENT; diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index b53a9207f530..8efb23a84131 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -209,7 +209,7 @@ sys_call_table: PTR sys_fork PTR sys_read PTR sys_write - PTR sys_open /* 4005 */ + PTR compat_sys_open /* 4005 */ PTR sys_close PTR sys_waitpid PTR sys_creat diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index bcf1b10e518f..397a70e651b5 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -246,7 +246,7 @@ static inline int parse_rd_cmdline(unsigned long* rd_start, unsigned long* rd_en #ifdef CONFIG_64BIT /* HACK: Guess if the sign extension was forgotten */ if (start > 0x0000000080000000 && start < 0x00000000ffffffff) - start |= 0xffffffff00000000; + start |= 0xffffffff00000000UL; #endif end = start + size; @@ -355,8 +355,6 @@ static inline void bootmem_init(void) } #endif - memory_present(0, first_usable_pfn, max_low_pfn); - /* Initialize the boot-time allocator with low memory only. */ bootmap_size = init_bootmem(first_usable_pfn, max_low_pfn); @@ -410,6 +408,7 @@ static inline void bootmem_init(void) /* Register lowmem ranges */ free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(size)); + memory_present(0, curr_pfn, curr_pfn + size - 1); } /* Reserve the bootmap memory. */ @@ -419,17 +418,20 @@ static inline void bootmem_init(void) #ifdef CONFIG_BLK_DEV_INITRD initrd_below_start_ok = 1; if (initrd_start) { - unsigned long initrd_size = ((unsigned char *)initrd_end) - ((unsigned char *)initrd_start); + unsigned long initrd_size = ((unsigned char *)initrd_end) - + ((unsigned char *)initrd_start); + const int width = sizeof(long) * 2; + printk("Initial ramdisk at: 0x%p (%lu bytes)\n", (void *)initrd_start, initrd_size); if (CPHYSADDR(initrd_end) > PFN_PHYS(max_low_pfn)) { printk("initrd extends beyond end of memory " "(0x%0*Lx > 0x%0*Lx)\ndisabling initrd\n", - sizeof(long) * 2, - (unsigned long long)CPHYSADDR(initrd_end), - sizeof(long) * 2, - (unsigned long long)PFN_PHYS(max_low_pfn)); + width, + (unsigned long long) CPHYSADDR(initrd_end), + width, + (unsigned long long) PFN_PHYS(max_low_pfn)); initrd_start = initrd_end = 0; initrd_reserve_bootmem = 0; } diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index d42f358754ad..298f82fe8440 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -247,6 +247,9 @@ void __init smp_prepare_cpus(unsigned int max_cpus) current_thread_info()->cpu = 0; smp_tune_scheduling(); plat_prepare_cpus(max_cpus); +#ifndef CONFIG_HOTPLUG_CPU + cpu_present_map = cpu_possible_map; +#endif } /* preload SMP state for boot cpu */ @@ -442,7 +445,7 @@ static int __init topology_init(void) int cpu; int ret; - for_each_cpu(cpu) { + for_each_present_cpu(cpu) { ret = register_cpu(&per_cpu(cpu_devices, cpu), cpu, NULL); if (ret) printk(KERN_WARNING "topology_init: register_cpu %d " diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c index 8f4fdd94dbd0..5e8a18a8e2bd 100644 --- a/arch/mips/kernel/syscall.c +++ b/arch/mips/kernel/syscall.c @@ -276,8 +276,7 @@ void sys_set_thread_area(unsigned long addr) asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3) { - int tmp, len; - char __user *name; + int tmp; switch(cmd) { case MIPS_ATOMIC_SET: diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 35cb08da3820..a7564b08eb4d 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -819,15 +819,30 @@ asmlinkage void do_watch(struct pt_regs *regs) asmlinkage void do_mcheck(struct pt_regs *regs) { + const int field = 2 * sizeof(unsigned long); + int multi_match = regs->cp0_status & ST0_TS; + show_regs(regs); - dump_tlb_all(); + + if (multi_match) { + printk("Index : %0x\n", read_c0_index()); + printk("Pagemask: %0x\n", read_c0_pagemask()); + printk("EntryHi : %0*lx\n", field, read_c0_entryhi()); + printk("EntryLo0: %0*lx\n", field, read_c0_entrylo0()); + printk("EntryLo1: %0*lx\n", field, read_c0_entrylo1()); + printk("\n"); + dump_tlb_all(); + } + + show_code((unsigned int *) regs->cp0_epc); + /* * Some chips may have other causes of machine check (e.g. SB1 * graduation timer) */ panic("Caught Machine Check exception - %scaused by multiple " "matching entries in the TLB.", - (regs->cp0_status & ST0_TS) ? "" : "not "); + (multi_match) ? "" : "not "); } asmlinkage void do_mt(struct pt_regs *regs) diff --git a/arch/mips/math-emu/dp_fint.c b/arch/mips/math-emu/dp_fint.c index a1962eb460f8..39a71de16f47 100644 --- a/arch/mips/math-emu/dp_fint.c +++ b/arch/mips/math-emu/dp_fint.c @@ -29,7 +29,9 @@ ieee754dp ieee754dp_fint(int x) { - COMPXDP; + u64 xm; + int xe; + int xs; CLEARCX; diff --git a/arch/mips/math-emu/dp_flong.c b/arch/mips/math-emu/dp_flong.c index eae90a866aa1..f08f223e488a 100644 --- a/arch/mips/math-emu/dp_flong.c +++ b/arch/mips/math-emu/dp_flong.c @@ -29,7 +29,9 @@ ieee754dp ieee754dp_flong(s64 x) { - COMPXDP; + u64 xm; + int xe; + int xs; CLEARCX; diff --git a/arch/mips/math-emu/sp_fint.c b/arch/mips/math-emu/sp_fint.c index 7aac13afb09a..e88e125e01c2 100644 --- a/arch/mips/math-emu/sp_fint.c +++ b/arch/mips/math-emu/sp_fint.c @@ -29,7 +29,9 @@ ieee754sp ieee754sp_fint(int x) { - COMPXSP; + unsigned xm; + int xe; + int xs; CLEARCX; diff --git a/arch/mips/math-emu/sp_flong.c b/arch/mips/math-emu/sp_flong.c index 3d6c1d11c178..26d6919a269a 100644 --- a/arch/mips/math-emu/sp_flong.c +++ b/arch/mips/math-emu/sp_flong.c @@ -29,7 +29,9 @@ ieee754sp ieee754sp_flong(s64 x) { - COMPXDP; /* <--- need 64-bit mantissa temp */ + u64 xm; /* <--- need 64-bit mantissa temp */ + int xe; + int xs; CLEARCX; diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 6b3541769602..4a43924cd4fc 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -1161,6 +1161,31 @@ static void __init setup_scache(void) c->options |= MIPS_CPU_SUBSET_CACHES; } +void au1x00_fixup_config_od(void) +{ + /* + * c0_config.od (bit 19) was write only (and read as 0) + * on the early revisions of Alchemy SOCs. It disables the bus + * transaction overlapping and needs to be set to fix various errata. + */ + switch (read_c0_prid()) { + case 0x00030100: /* Au1000 DA */ + case 0x00030201: /* Au1000 HA */ + case 0x00030202: /* Au1000 HB */ + case 0x01030200: /* Au1500 AB */ + /* + * Au1100 errata actually keeps silence about this bit, so we set it + * just in case for those revisions that require it to be set according + * to arch/mips/au1000/common/cputable.c + */ + case 0x02030200: /* Au1100 AB */ + case 0x02030201: /* Au1100 BA */ + case 0x02030202: /* Au1100 BC */ + set_c0_config(1 << 19); + break; + } +} + static inline void coherency_setup(void) { change_c0_config(CONF_CM_CMASK, CONF_CM_DEFAULT); @@ -1181,6 +1206,15 @@ static inline void coherency_setup(void) case CPU_R4400MC: clear_c0_config(CONF_CU); break; + /* + * We need to catch the ealry Alchemy SOCs with + * the write-only co_config.od bit and set it back to one... + */ + case CPU_AU1000: /* rev. DA, HA, HB */ + case CPU_AU1100: /* rev. AB, BA, BC ?? */ + case CPU_AU1500: /* rev. AB */ + au1x00_fixup_config_od(); + break; } } diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index c22308b93ff0..33f6e1cdfd5b 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -227,7 +227,7 @@ void __init mem_init(void) for (tmp = 0; tmp < max_low_pfn; tmp++) if (page_is_ram(tmp)) { ram++; - if (PageReserved(mem_map+tmp)) + if (PageReserved(pfn_to_page(tmp))) reservedpages++; } diff --git a/arch/mips/momentum/jaguar_atx/dbg_io.c b/arch/mips/momentum/jaguar_atx/dbg_io.c index 542eac82b63c..d7dea0a136aa 100644 --- a/arch/mips/momentum/jaguar_atx/dbg_io.c +++ b/arch/mips/momentum/jaguar_atx/dbg_io.c @@ -73,7 +73,7 @@ void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop) /* disable interrupts */ UART16550_WRITE(OFS_INTR_ENABLE, 0); - /* set up buad rate */ + /* set up baud rate */ { uint32 divisor; diff --git a/arch/mips/momentum/ocelot_c/dbg_io.c b/arch/mips/momentum/ocelot_c/dbg_io.c index 8720bccfdea2..f0a6a38fcf4d 100644 --- a/arch/mips/momentum/ocelot_c/dbg_io.c +++ b/arch/mips/momentum/ocelot_c/dbg_io.c @@ -73,7 +73,7 @@ void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop) /* disable interrupts */ UART16550_WRITE(OFS_INTR_ENABLE, 0); - /* set up buad rate */ + /* set up baud rate */ { uint32 divisor; diff --git a/arch/mips/momentum/ocelot_g/dbg_io.c b/arch/mips/momentum/ocelot_g/dbg_io.c index 8720bccfdea2..f0a6a38fcf4d 100644 --- a/arch/mips/momentum/ocelot_g/dbg_io.c +++ b/arch/mips/momentum/ocelot_g/dbg_io.c @@ -73,7 +73,7 @@ void debugInit(uint32 baud, uint8 data, uint8 parity, uint8 stop) /* disable interrupts */ UART16550_WRITE(OFS_INTR_ENABLE, 0); - /* set up buad rate */ + /* set up baud rate */ { uint32 divisor; diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c index 91b799d2cd88..c31e4cff64e0 100644 --- a/arch/mips/oprofile/common.c +++ b/arch/mips/oprofile/common.c @@ -14,8 +14,8 @@ #include "op_impl.h" -extern struct op_mips_model op_model_mipsxx __attribute__((weak)); -extern struct op_mips_model op_model_rm9000 __attribute__((weak)); +extern struct op_mips_model op_model_mipsxx_ops __attribute__((weak)); +extern struct op_mips_model op_model_rm9000_ops __attribute__((weak)); static struct op_mips_model *model; @@ -83,11 +83,11 @@ int __init oprofile_arch_init(struct oprofile_operations *ops) case CPU_74K: case CPU_SB1: case CPU_SB1A: - lmodel = &op_model_mipsxx; + lmodel = &op_model_mipsxx_ops; break; case CPU_RM9000: - lmodel = &op_model_rm9000; + lmodel = &op_model_rm9000_ops; break; }; diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c index e7ce92391303..f26a00e13204 100644 --- a/arch/mips/oprofile/op_model_mipsxx.c +++ b/arch/mips/oprofile/op_model_mipsxx.c @@ -23,7 +23,7 @@ #define M_COUNTER_OVERFLOW (1UL << 31) -struct op_mips_model op_model_mipsxx; +struct op_mips_model op_model_mipsxx_ops; static struct mipsxx_register_config { unsigned int control[4]; @@ -34,7 +34,7 @@ static struct mipsxx_register_config { static void mipsxx_reg_setup(struct op_counter_config *ctr) { - unsigned int counters = op_model_mipsxx.num_counters; + unsigned int counters = op_model_mipsxx_ops.num_counters; int i; /* Compute the performance counter control word. */ @@ -62,7 +62,7 @@ static void mipsxx_reg_setup(struct op_counter_config *ctr) static void mipsxx_cpu_setup (void *args) { - unsigned int counters = op_model_mipsxx.num_counters; + unsigned int counters = op_model_mipsxx_ops.num_counters; switch (counters) { case 4: @@ -83,7 +83,7 @@ static void mipsxx_cpu_setup (void *args) /* Start all counters on current CPU */ static void mipsxx_cpu_start(void *args) { - unsigned int counters = op_model_mipsxx.num_counters; + unsigned int counters = op_model_mipsxx_ops.num_counters; switch (counters) { case 4: @@ -100,7 +100,7 @@ static void mipsxx_cpu_start(void *args) /* Stop all counters on current CPU */ static void mipsxx_cpu_stop(void *args) { - unsigned int counters = op_model_mipsxx.num_counters; + unsigned int counters = op_model_mipsxx_ops.num_counters; switch (counters) { case 4: @@ -116,7 +116,7 @@ static void mipsxx_cpu_stop(void *args) static int mipsxx_perfcount_handler(struct pt_regs *regs) { - unsigned int counters = op_model_mipsxx.num_counters; + unsigned int counters = op_model_mipsxx_ops.num_counters; unsigned int control; unsigned int counter; int handled = 0; @@ -187,37 +187,37 @@ static int __init mipsxx_init(void) reset_counters(counters); - op_model_mipsxx.num_counters = counters; + op_model_mipsxx_ops.num_counters = counters; switch (current_cpu_data.cputype) { case CPU_20KC: - op_model_mipsxx.cpu_type = "mips/20K"; + op_model_mipsxx_ops.cpu_type = "mips/20K"; break; case CPU_24K: - op_model_mipsxx.cpu_type = "mips/24K"; + op_model_mipsxx_ops.cpu_type = "mips/24K"; break; case CPU_25KF: - op_model_mipsxx.cpu_type = "mips/25K"; + op_model_mipsxx_ops.cpu_type = "mips/25K"; break; #ifndef CONFIG_SMP case CPU_34K: - op_model_mipsxx.cpu_type = "mips/34K"; + op_model_mipsxx_ops.cpu_type = "mips/34K"; break; case CPU_74K: - op_model_mipsxx.cpu_type = "mips/74K"; + op_model_mipsxx_ops.cpu_type = "mips/74K"; break; #endif case CPU_5KC: - op_model_mipsxx.cpu_type = "mips/5K"; + op_model_mipsxx_ops.cpu_type = "mips/5K"; break; case CPU_SB1: case CPU_SB1A: - op_model_mipsxx.cpu_type = "mips/sb1"; + op_model_mipsxx_ops.cpu_type = "mips/sb1"; break; default: @@ -233,12 +233,12 @@ static int __init mipsxx_init(void) static void mipsxx_exit(void) { - reset_counters(op_model_mipsxx.num_counters); + reset_counters(op_model_mipsxx_ops.num_counters); perf_irq = null_perf_irq; } -struct op_mips_model op_model_mipsxx = { +struct op_mips_model op_model_mipsxx_ops = { .reg_setup = mipsxx_reg_setup, .cpu_setup = mipsxx_cpu_setup, .init = mipsxx_init, diff --git a/arch/mips/oprofile/op_model_rm9000.c b/arch/mips/oprofile/op_model_rm9000.c index 9b75e41c78ef..b7063fefa65b 100644 --- a/arch/mips/oprofile/op_model_rm9000.c +++ b/arch/mips/oprofile/op_model_rm9000.c @@ -126,7 +126,7 @@ static void rm9000_exit(void) free_irq(rm9000_perfcount_irq, NULL); } -struct op_mips_model op_model_rm9000 = { +struct op_mips_model op_model_rm9000_ops = { .reg_setup = rm9000_reg_setup, .cpu_setup = rm9000_cpu_setup, .init = rm9000_init, diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c index de01c9815bdd..8ba08047d164 100644 --- a/arch/mips/sgi-ip32/ip32-irq.c +++ b/arch/mips/sgi-ip32/ip32-irq.c @@ -31,12 +31,12 @@ /* issue a PIO read to make sure no PIO writes are pending */ static void inline flush_crime_bus(void) { - volatile unsigned long junk = crime->control; + crime->control; } static void inline flush_mace_bus(void) { - volatile unsigned long junk = mace->perif.ctrl.misc; + mace->perif.ctrl.misc; } #undef DEBUG_IRQ diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 5908690d0868..57d8a16438a0 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -776,6 +776,7 @@ static void __init prom_send_capabilities(void) /* try calling the ibm,client-architecture-support method */ if (call_prom_ret("call-method", 3, 2, &ret, ADDR("ibm,client-architecture-support"), + root, ADDR(ibm_architecture_vec)) == 0) { /* the call exists... */ if (ret) @@ -1541,6 +1542,15 @@ static int __init prom_find_machine_type(void) if (strstr(p, RELOC("Power Macintosh")) || strstr(p, RELOC("MacRISC"))) return PLATFORM_POWERMAC; +#ifdef CONFIG_PPC64 + /* We must make sure we don't detect the IBM Cell + * blades as pSeries due to some firmware issues, + * so we do it here. + */ + if (strstr(p, RELOC("IBM,CBEA")) || + strstr(p, RELOC("IBM,CPBW-1.0"))) + return PLATFORM_GENERIC; +#endif /* CONFIG_PPC64 */ i += sl + 1; } } diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index 237faeec2ec2..d73b25e22fca 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -808,10 +808,13 @@ static int do_setcontext(struct ucontext __user *ucp, struct pt_regs *regs, int if (__get_user(cmcp, &ucp->uc_regs)) return -EFAULT; mcp = (struct mcontext __user *)(u64)cmcp; + /* no need to check access_ok(mcp), since mcp < 4GB */ } #else if (__get_user(mcp, &ucp->uc_regs)) return -EFAULT; + if (!access_ok(VERIFY_READ, mcp, sizeof(*mcp))) + return -EFAULT; #endif restore_sigmask(&set); if (restore_user_regs(regs, mcp, sig)) @@ -913,13 +916,14 @@ int sys_debug_setcontext(struct ucontext __user *ctx, { struct sig_dbg_op op; int i; + unsigned char tmp; unsigned long new_msr = regs->msr; #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) unsigned long new_dbcr0 = current->thread.dbcr0; #endif for (i=0; i<ndbg; i++) { - if (__copy_from_user(&op, dbg, sizeof(op))) + if (copy_from_user(&op, dbg + i, sizeof(op))) return -EFAULT; switch (op.dbg_type) { case SIG_DBG_SINGLE_STEPPING: @@ -964,6 +968,11 @@ int sys_debug_setcontext(struct ucontext __user *ctx, current->thread.dbcr0 = new_dbcr0; #endif + if (!access_ok(VERIFY_READ, ctx, sizeof(*ctx)) + || __get_user(tmp, (u8 __user *) ctx) + || __get_user(tmp, (u8 __user *) (ctx + 1) - 1)) + return -EFAULT; + /* * If we get a fault copying the context into the kernel's * image of the user's registers, we can't just return -EFAULT diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c index 66a5fbe31989..6e75d7ab6d4d 100644 --- a/arch/powerpc/kernel/signal_64.c +++ b/arch/powerpc/kernel/signal_64.c @@ -184,6 +184,8 @@ static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig, err |= __get_user(v_regs, &sc->v_regs); if (err) return err; + if (v_regs && !access_ok(VERIFY_READ, v_regs, 34 * sizeof(vector128))) + return -EFAULT; /* Copy 33 vec registers (vr0..31 and vscr) from the stack */ if (v_regs != 0 && (msr & MSR_VEC) != 0) err |= __copy_from_user(current->thread.vr, v_regs, diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index 6574b22b3cf3..fd3e5609e3e0 100644 --- a/arch/powerpc/platforms/cell/setup.c +++ b/arch/powerpc/platforms/cell/setup.c @@ -125,14 +125,13 @@ static void __init cell_init_early(void) static int __init cell_probe(void) { - /* XXX This is temporary, the Cell maintainer will come up with - * more appropriate detection logic - */ unsigned long root = of_get_flat_dt_root(); - if (!of_flat_dt_is_compatible(root, "IBM,CPBW-1.0")) - return 0; - return 1; + if (of_flat_dt_is_compatible(root, "IBM,CBEA") || + of_flat_dt_is_compatible(root, "IBM,CPBW-1.0")) + return 1; + + return 0; } /* diff --git a/arch/powerpc/platforms/powermac/pfunc_core.c b/arch/powerpc/platforms/powermac/pfunc_core.c index 4baa75b1d36f..f08173b0f065 100644 --- a/arch/powerpc/platforms/powermac/pfunc_core.c +++ b/arch/powerpc/platforms/powermac/pfunc_core.c @@ -11,6 +11,7 @@ #include <linux/kernel.h> #include <linux/spinlock.h> #include <linux/module.h> +#include <linux/mutex.h> #include <asm/semaphore.h> #include <asm/prom.h> @@ -546,6 +547,7 @@ struct pmf_device { static LIST_HEAD(pmf_devices); static spinlock_t pmf_lock = SPIN_LOCK_UNLOCKED; +static DEFINE_MUTEX(pmf_irq_mutex); static void pmf_release_device(struct kref *kref) { @@ -864,15 +866,17 @@ int pmf_register_irq_client(struct device_node *target, spin_lock_irqsave(&pmf_lock, flags); func = __pmf_find_function(target, name, PMF_FLAGS_INT_GEN); - if (func == NULL) { - spin_unlock_irqrestore(&pmf_lock, flags); + if (func) + func = pmf_get_function(func); + spin_unlock_irqrestore(&pmf_lock, flags); + if (func == NULL) return -ENODEV; - } + mutex_lock(&pmf_irq_mutex); if (list_empty(&func->irq_clients)) func->dev->handlers->irq_enable(func); list_add(&client->link, &func->irq_clients); client->func = func; - spin_unlock_irqrestore(&pmf_lock, flags); + mutex_unlock(&pmf_irq_mutex); return 0; } @@ -881,16 +885,16 @@ EXPORT_SYMBOL_GPL(pmf_register_irq_client); void pmf_unregister_irq_client(struct pmf_irq_client *client) { struct pmf_function *func = client->func; - unsigned long flags; BUG_ON(func == NULL); - spin_lock_irqsave(&pmf_lock, flags); + mutex_lock(&pmf_irq_mutex); client->func = NULL; list_del(&client->link); if (list_empty(&func->irq_clients)) func->dev->handlers->irq_disable(func); - spin_unlock_irqrestore(&pmf_lock, flags); + mutex_unlock(&pmf_irq_mutex); + pmf_put_function(func); } EXPORT_SYMBOL_GPL(pmf_unregister_irq_client); diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index ee89d19c436a..1e28518c6121 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -389,6 +389,7 @@ static int __init pSeries_probe_hypertas(unsigned long node, static int __init pSeries_probe(void) { + unsigned long root = of_get_flat_dt_root(); char *dtype = of_get_flat_dt_prop(of_get_flat_dt_root(), "device_type", NULL); if (dtype == NULL) @@ -396,6 +397,13 @@ static int __init pSeries_probe(void) if (strcmp(dtype, "chrp")) return 0; + /* Cell blades firmware claims to be chrp while it's not. Until this + * is fixed, we need to avoid those here. + */ + if (of_flat_dt_is_compatible(root, "IBM,CPBW-1.0") || + of_flat_dt_is_compatible(root, "IBM,CBEA")) + return 0; + DBG("pSeries detected, looking for LPAR capability...\n"); /* Now try to figure out if we are running on LPAR */ diff --git a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c index a93f5da6855d..40b42c88e6a7 100644 --- a/arch/sparc/kernel/smp.c +++ b/arch/sparc/kernel/smp.c @@ -69,6 +69,17 @@ void __init smp_store_cpu_info(int id) "clock-frequency", 0); cpu_data(id).prom_node = cpu_node; cpu_data(id).mid = cpu_get_hwmid(cpu_node); + + /* this is required to tune the scheduler correctly */ + /* is it possible to have CPUs with different cache sizes? */ + if (id == boot_cpu_id) { + int cache_line,cache_nlines; + cache_line = 0x20; + cache_line = prom_getintdefault(cpu_node, "ecache-line-size", cache_line); + cache_nlines = 0x8000; + cache_nlines = prom_getintdefault(cpu_node, "ecache-nlines", cache_nlines); + max_cache_size = cache_line * cache_nlines; + } if (cpu_data(id).mid < 0) panic("No MID found for CPU%d at node 0x%08d", id, cpu_node); } diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S index 3eadac5e171e..31c5892f5acc 100644 --- a/arch/sparc64/kernel/head.S +++ b/arch/sparc64/kernel/head.S @@ -10,6 +10,7 @@ #include <linux/config.h> #include <linux/version.h> #include <linux/errno.h> +#include <linux/threads.h> #include <asm/thread_info.h> #include <asm/asi.h> #include <asm/pstate.h> @@ -493,6 +494,35 @@ tlb_fixup_done: call prom_init mov %l7, %o0 ! OpenPROM cif handler + /* Initialize current_thread_info()->cpu as early as possible. + * In order to do that accurately we have to patch up the get_cpuid() + * assembler sequences. And that, in turn, requires that we know + * if we are on a Starfire box or not. While we're here, patch up + * the sun4v sequences as well. + */ + call check_if_starfire + nop + call per_cpu_patch + nop + call sun4v_patch + nop + +#ifdef CONFIG_SMP + call hard_smp_processor_id + nop + cmp %o0, NR_CPUS + blu,pt %xcc, 1f + nop + call boot_cpu_id_too_large + nop + /* Not reached... */ + +1: +#else + mov 0, %o0 +#endif + stb %o0, [%g6 + TI_CPU] + /* Off we go.... */ call start_kernel nop diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c index 2b7a1f316a93..0c0895202970 100644 --- a/arch/sparc64/kernel/pci_sun4v.c +++ b/arch/sparc64/kernel/pci_sun4v.c @@ -599,18 +599,128 @@ struct pci_iommu_ops pci_sun4v_iommu_ops = { /* SUN4V PCI configuration space accessors. */ -static inline int pci_sun4v_out_of_range(struct pci_pbm_info *pbm, unsigned int bus, unsigned int device, unsigned int func) +struct pdev_entry { + struct pdev_entry *next; + u32 devhandle; + unsigned int bus; + unsigned int device; + unsigned int func; +}; + +#define PDEV_HTAB_SIZE 16 +#define PDEV_HTAB_MASK (PDEV_HTAB_SIZE - 1) +static struct pdev_entry *pdev_htab[PDEV_HTAB_SIZE]; + +static inline unsigned int pdev_hashfn(u32 devhandle, unsigned int bus, unsigned int device, unsigned int func) { - if (bus == pbm->pci_first_busno) { - if (device == 0 && func == 0) - return 0; - return 1; + unsigned int val; + + val = (devhandle ^ (devhandle >> 4)); + val ^= bus; + val ^= device; + val ^= func; + + return val & PDEV_HTAB_MASK; +} + +static int pdev_htab_add(u32 devhandle, unsigned int bus, unsigned int device, unsigned int func) +{ + struct pdev_entry *p = kmalloc(sizeof(*p), GFP_KERNEL); + struct pdev_entry **slot; + + if (!p) + return -ENOMEM; + + slot = &pdev_htab[pdev_hashfn(devhandle, bus, device, func)]; + p->next = *slot; + *slot = p; + + p->devhandle = devhandle; + p->bus = bus; + p->device = device; + p->func = func; + + return 0; +} + +/* Recursively descend into the OBP device tree, rooted at toplevel_node, + * looking for a PCI device matching bus and devfn. + */ +static int obp_find(struct linux_prom_pci_registers *pregs, int toplevel_node, unsigned int bus, unsigned int devfn) +{ + toplevel_node = prom_getchild(toplevel_node); + + while (toplevel_node != 0) { + int ret = obp_find(pregs, toplevel_node, bus, devfn); + + if (ret != 0) + return ret; + + ret = prom_getproperty(toplevel_node, "reg", (char *) pregs, + sizeof(*pregs) * PROMREG_MAX); + if (ret == 0 || ret == -1) + goto next_sibling; + + if (((pregs[0].phys_hi >> 16) & 0xff) == bus && + ((pregs[0].phys_hi >> 8) & 0xff) == devfn) + break; + + next_sibling: + toplevel_node = prom_getsibling(toplevel_node); + } + + return toplevel_node; +} + +static int pdev_htab_populate(struct pci_pbm_info *pbm) +{ + struct linux_prom_pci_registers pr[PROMREG_MAX]; + u32 devhandle = pbm->devhandle; + unsigned int bus; + + for (bus = pbm->pci_first_busno; bus <= pbm->pci_last_busno; bus++) { + unsigned int devfn; + + for (devfn = 0; devfn < 256; devfn++) { + unsigned int device = PCI_SLOT(devfn); + unsigned int func = PCI_FUNC(devfn); + + if (obp_find(pr, pbm->prom_node, bus, devfn)) { + int err = pdev_htab_add(devhandle, bus, + device, func); + if (err) + return err; + } + } + } + + return 0; +} + +static struct pdev_entry *pdev_find(u32 devhandle, unsigned int bus, unsigned int device, unsigned int func) +{ + struct pdev_entry *p; + + p = pdev_htab[pdev_hashfn(devhandle, bus, device, func)]; + while (p) { + if (p->devhandle == devhandle && + p->bus == bus && + p->device == device && + p->func == func) + break; + + p = p->next; } + return p; +} + +static inline int pci_sun4v_out_of_range(struct pci_pbm_info *pbm, unsigned int bus, unsigned int device, unsigned int func) +{ if (bus < pbm->pci_first_busno || bus > pbm->pci_last_busno) return 1; - return 0; + return pdev_find(pbm->devhandle, bus, device, func) == NULL; } static int pci_sun4v_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn, @@ -1063,6 +1173,8 @@ static void pci_sun4v_pbm_init(struct pci_controller_info *p, int prom_node, u32 pci_sun4v_get_bus_range(pbm); pci_sun4v_iommu_init(pbm); + + pdev_htab_populate(pbm); } void sun4v_pci_init(int node, char *model_name) diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c index 005167f82419..9cf1c88cd774 100644 --- a/arch/sparc64/kernel/setup.c +++ b/arch/sparc64/kernel/setup.c @@ -220,7 +220,7 @@ char reboot_command[COMMAND_LINE_SIZE]; static struct pt_regs fake_swapper_regs = { { 0, }, 0, 0, 0, 0 }; -static void __init per_cpu_patch(void) +void __init per_cpu_patch(void) { struct cpuid_patch_entry *p; unsigned long ver; @@ -280,7 +280,7 @@ static void __init per_cpu_patch(void) } } -static void __init sun4v_patch(void) +void __init sun4v_patch(void) { struct sun4v_1insn_patch_entry *p1; struct sun4v_2insn_patch_entry *p2; @@ -315,6 +315,15 @@ static void __init sun4v_patch(void) } } +#ifdef CONFIG_SMP +void __init boot_cpu_id_too_large(int cpu) +{ + prom_printf("Serious problem, boot cpu id (%d) >= NR_CPUS (%d)\n", + cpu, NR_CPUS); + prom_halt(); +} +#endif + void __init setup_arch(char **cmdline_p) { /* Initialize PROM console and command line. */ @@ -332,16 +341,6 @@ void __init setup_arch(char **cmdline_p) conswitchp = &prom_con; #endif - /* Work out if we are starfire early on */ - check_if_starfire(); - - /* Now we know enough to patch the get_cpuid sequences - * used by trap code. - */ - per_cpu_patch(); - - sun4v_patch(); - boot_flags_init(*cmdline_p); idprom_init(); diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index 90eaca3ec9a6..f03d52d0b88d 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -1264,7 +1264,6 @@ void __init smp_tick_init(void) boot_cpu_id = hard_smp_processor_id(); current_tick_offset = timer_tick_offset; - cpu_set(boot_cpu_id, cpu_online_map); prof_counter(boot_cpu_id) = prof_multiplier(boot_cpu_id) = 1; } @@ -1288,6 +1287,40 @@ int setup_profiling_timer(unsigned int multiplier) return 0; } +static void __init smp_tune_scheduling(void) +{ + int instance, node; + unsigned int def, smallest = ~0U; + + def = ((tlb_type == hypervisor) ? + (3 * 1024 * 1024) : + (4 * 1024 * 1024)); + + instance = 0; + while (!cpu_find_by_instance(instance, &node, NULL)) { + unsigned int val; + + val = prom_getintdefault(node, "ecache-size", def); + if (val < smallest) + smallest = val; + + instance++; + } + + /* Any value less than 256K is nonsense. */ + if (smallest < (256U * 1024U)) + smallest = 256 * 1024; + + max_cache_size = smallest; + + if (smallest < 1U * 1024U * 1024U) + printk(KERN_INFO "Using max_cache_size of %uKB\n", + smallest / 1024U); + else + printk(KERN_INFO "Using max_cache_size of %uMB\n", + smallest / 1024U / 1024U); +} + /* Constrain the number of cpus to max_cpus. */ void __init smp_prepare_cpus(unsigned int max_cpus) { @@ -1323,6 +1356,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) } smp_store_cpu_info(boot_cpu_id); + smp_tune_scheduling(); } /* Set this up early so that things like the scheduler can init @@ -1345,18 +1379,6 @@ void __init smp_setup_cpu_possible_map(void) void __devinit smp_prepare_boot_cpu(void) { - int cpu = hard_smp_processor_id(); - - if (cpu >= NR_CPUS) { - prom_printf("Serious problem, boot cpu id >= NR_CPUS\n"); - prom_halt(); - } - - current_thread_info()->cpu = cpu; - __local_per_cpu_offset = __per_cpu_offset(cpu); - - cpu_set(smp_processor_id(), cpu_online_map); - cpu_set(smp_processor_id(), phys_cpu_present_map); } int __devinit __cpu_up(unsigned int cpu) @@ -1433,4 +1455,7 @@ void __init setup_per_cpu_areas(void) for (i = 0; i < NR_CPUS; i++, ptr += size) memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start); + + /* Setup %g5 for the boot cpu. */ + __local_per_cpu_offset = __per_cpu_offset(smp_processor_id()); } diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index 2793a5d82380..563db528e031 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -1797,7 +1797,9 @@ static const char *sun4v_err_type_to_str(u32 type) }; } -static void sun4v_log_error(struct sun4v_error_entry *ent, int cpu, const char *pfx, atomic_t *ocnt) +extern void __show_regs(struct pt_regs * regs); + +static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent, int cpu, const char *pfx, atomic_t *ocnt) { int cnt; @@ -1830,6 +1832,8 @@ static void sun4v_log_error(struct sun4v_error_entry *ent, int cpu, const char * pfx, ent->err_raddr, ent->err_size, ent->err_cpu); + __show_regs(regs); + if ((cnt = atomic_read(ocnt)) != 0) { atomic_set(ocnt, 0); wmb(); @@ -1862,7 +1866,7 @@ void sun4v_resum_error(struct pt_regs *regs, unsigned long offset) put_cpu(); - sun4v_log_error(&local_copy, cpu, + sun4v_log_error(regs, &local_copy, cpu, KERN_ERR "RESUMABLE ERROR", &sun4v_resum_oflow_cnt); } @@ -1910,7 +1914,7 @@ void sun4v_nonresum_error(struct pt_regs *regs, unsigned long offset) } #endif - sun4v_log_error(&local_copy, cpu, + sun4v_log_error(regs, &local_copy, cpu, KERN_EMERG "NON-RESUMABLE ERROR", &sun4v_nonresum_oflow_cnt); @@ -2200,7 +2204,6 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw) void die_if_kernel(char *str, struct pt_regs *regs) { static int die_counter; - extern void __show_regs(struct pt_regs * regs); extern void smp_report_regs(void); int count = 0; diff --git a/arch/sparc64/lib/checksum.S b/arch/sparc64/lib/checksum.S index ba9cd3ccc2b2..1d230f693dc4 100644 --- a/arch/sparc64/lib/checksum.S +++ b/arch/sparc64/lib/checksum.S @@ -165,8 +165,9 @@ csum_partial_end_cruft: sll %g1, 8, %g1 or %o5, %g1, %o4 -1: add %o2, %o4, %o2 +1: addcc %o2, %o4, %o2 + addc %g0, %o2, %o2 csum_partial_finish: retl - mov %o2, %o0 + srl %o2, 0, %o0 diff --git a/arch/sparc64/lib/csum_copy.S b/arch/sparc64/lib/csum_copy.S index 71af48839064..e566c770a0f6 100644 --- a/arch/sparc64/lib/csum_copy.S +++ b/arch/sparc64/lib/csum_copy.S @@ -221,11 +221,12 @@ FUNC_NAME: /* %o0=src, %o1=dst, %o2=len, %o3=sum */ sll %g1, 8, %g1 or %o5, %g1, %o4 -1: add %o3, %o4, %o3 +1: addcc %o3, %o4, %o3 + addc %g0, %o3, %o3 70: retl - mov %o3, %o0 + srl %o3, 0, %o0 95: mov 0, GLOBAL_SPARE brlez,pn %o2, 4f diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386 index 7a0e04e34bf9..b65ca115ef77 100644 --- a/arch/um/Makefile-i386 +++ b/arch/um/Makefile-i386 @@ -33,5 +33,9 @@ include $(srctree)/arch/i386/Makefile.cpu # prevent gcc from keeping the stack 16 byte aligned. Taken from i386. cflags-y += $(call cc-option,-mpreferred-stack-boundary=2) +# Prevent sprintf in nfsd from being converted to strcpy and resulting in +# an unresolved reference. +cflags-y += -ffreestanding + CFLAGS += $(cflags-y) USER_CFLAGS += $(cflags-y) diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h index efa3d33c0be6..310980b32173 100644 --- a/arch/um/include/kern_util.h +++ b/arch/um/include/kern_util.h @@ -120,20 +120,11 @@ extern int is_syscall(unsigned long addr); extern void free_irq(unsigned int, void *); extern int cpu(void); +extern void time_init_kern(void); + /* Are we disallowed to sleep? Used to choose between GFP_KERNEL and GFP_ATOMIC. */ extern int __cant_sleep(void); extern void segv_handler(int sig, union uml_pt_regs *regs); extern void sigio_handler(int sig, union uml_pt_regs *regs); #endif - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/kernel/time_kern.c b/arch/um/kernel/time_kern.c index 528cf623f8b4..86f51d04c98d 100644 --- a/arch/um/kernel/time_kern.c +++ b/arch/um/kernel/time_kern.c @@ -84,6 +84,16 @@ void timer_irq(union uml_pt_regs *regs) } } + +void time_init_kern(void) +{ + unsigned long long nsecs; + + nsecs = os_nsecs(); + set_normalized_timespec(&wall_to_monotonic, -nsecs / BILLION, + -nsecs % BILLION); +} + void do_boot_timer_handler(struct sigcontext * sc) { struct pt_regs regs; diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c index 3a0ac38e978b..90912aaca7aa 100644 --- a/arch/um/os-Linux/main.c +++ b/arch/um/os-Linux/main.c @@ -59,7 +59,7 @@ static __init void do_uml_initcalls(void) initcall_t *call; call = &__uml_initcall_start; - while (call < &__uml_initcall_end){; + while (call < &__uml_initcall_end){ (*call)(); call++; } diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c index 6f7626775acb..280c4fb9b585 100644 --- a/arch/um/os-Linux/time.c +++ b/arch/um/os-Linux/time.c @@ -81,20 +81,12 @@ void uml_idle_timer(void) set_interval(ITIMER_REAL); } -extern void ktime_get_ts(struct timespec *ts); -#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts) - void time_init(void) { - struct timespec now; - if(signal(SIGVTALRM, boot_timer_handler) == SIG_ERR) panic("Couldn't set SIGVTALRM handler"); set_interval(ITIMER_VIRTUAL); - - do_posix_clock_monotonic_gettime(&now); - wall_to_monotonic.tv_sec = -now.tv_sec; - wall_to_monotonic.tv_nsec = -now.tv_nsec; + time_init_kern(); } unsigned long long os_nsecs(void) diff --git a/arch/um/sys-i386/syscalls.c b/arch/um/sys-i386/syscalls.c index 749dd1bfe60f..710d5fb807e1 100644 --- a/arch/um/sys-i386/syscalls.c +++ b/arch/um/sys-i386/syscalls.c @@ -99,11 +99,12 @@ long sys_ipc (uint call, int first, int second, switch (call) { case SEMOP: - return sys_semtimedop(first, (struct sembuf *) ptr, second, - NULL); + return sys_semtimedop(first, (struct sembuf __user *) ptr, + second, NULL); case SEMTIMEDOP: - return sys_semtimedop(first, (struct sembuf *) ptr, second, - (const struct timespec *) fifth); + return sys_semtimedop(first, (struct sembuf __user *) ptr, + second, + (const struct timespec __user *) fifth); case SEMGET: return sys_semget (first, second, third); case SEMCTL: { diff --git a/arch/um/sys-x86_64/signal.c b/arch/um/sys-x86_64/signal.c index a4c46a8af008..9edf114faf79 100644 --- a/arch/um/sys-x86_64/signal.c +++ b/arch/um/sys-x86_64/signal.c @@ -21,7 +21,7 @@ #include "skas.h" static int copy_sc_from_user_skas(struct pt_regs *regs, - struct sigcontext *from) + struct sigcontext __user *from) { int err = 0; @@ -54,7 +54,8 @@ static int copy_sc_from_user_skas(struct pt_regs *regs, return(err); } -int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp, +int copy_sc_to_user_skas(struct sigcontext __user *to, + struct _fpstate __user *to_fp, struct pt_regs *regs, unsigned long mask, unsigned long sp) { @@ -106,10 +107,11 @@ int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp, #endif #ifdef CONFIG_MODE_TT -int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext *from, +int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext __user *from, int fpsize) { - struct _fpstate *to_fp, *from_fp; + struct _fpstate *to_fp; + struct _fpstate __user *from_fp; unsigned long sigs; int err; @@ -124,13 +126,14 @@ int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext *from, return(err); } -int copy_sc_to_user_tt(struct sigcontext *to, struct _fpstate *fp, +int copy_sc_to_user_tt(struct sigcontext __user *to, struct _fpstate __user *fp, struct sigcontext *from, int fpsize, unsigned long sp) { - struct _fpstate *to_fp, *from_fp; + struct _fpstate __user *to_fp; + struct _fpstate *from_fp; int err; - to_fp = (fp ? fp : (struct _fpstate *) (to + 1)); + to_fp = (fp ? fp : (struct _fpstate __user *) (to + 1)); from_fp = from->fpstate; err = copy_to_user(to, from, sizeof(*to)); /* The SP in the sigcontext is the updated one for the signal @@ -158,7 +161,8 @@ static int copy_sc_from_user(struct pt_regs *to, void __user *from) return(ret); } -static int copy_sc_to_user(struct sigcontext *to, struct _fpstate *fp, +static int copy_sc_to_user(struct sigcontext __user *to, + struct _fpstate __user *fp, struct pt_regs *from, unsigned long mask, unsigned long sp) { @@ -169,7 +173,7 @@ static int copy_sc_to_user(struct sigcontext *to, struct _fpstate *fp, struct rt_sigframe { - char *pretcode; + char __user *pretcode; struct ucontext uc; struct siginfo info; }; @@ -188,7 +192,7 @@ int setup_signal_stack_si(unsigned long stack_top, int sig, frame = (struct rt_sigframe __user *) round_down(stack_top - sizeof(struct rt_sigframe), 16) - 8; - frame = (struct rt_sigframe *) ((unsigned long) frame - 128); + frame = (struct rt_sigframe __user *) ((unsigned long) frame - 128); if (!access_ok(VERIFY_WRITE, fp, sizeof(struct _fpstate))) goto out; diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c index 6acee5c4ada6..6fce9f45dfdc 100644 --- a/arch/um/sys-x86_64/syscalls.c +++ b/arch/um/sys-x86_64/syscalls.c @@ -45,7 +45,7 @@ static long arch_prctl_tt(int code, unsigned long addr) case ARCH_GET_GS: ret = arch_prctl(code, (unsigned long) &tmp); if(!ret) - ret = put_user(tmp, &addr); + ret = put_user(tmp, (long __user *)addr); break; default: ret = -EINVAL; diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c index 0de3ea938830..9cc7031b7151 100644 --- a/arch/x86_64/kernel/io_apic.c +++ b/arch/x86_64/kernel/io_apic.c @@ -271,6 +271,18 @@ __setup("enable_8254_timer", setup_enable_8254_timer); #include <linux/pci_ids.h> #include <linux/pci.h> + +#ifdef CONFIG_ACPI + +static int nvidia_hpet_detected __initdata; + +static int __init nvidia_hpet_check(unsigned long phys, unsigned long size) +{ + nvidia_hpet_detected = 1; + return 0; +} +#endif + /* Temporary Hack. Nvidia and VIA boards currently only work with IO-APIC off. Check for an Nvidia or VIA PCI bridge and turn it off. Use pci direct infrastructure because this runs before the PCI subsystem. @@ -317,11 +329,19 @@ void __init check_ioapic(void) return; case PCI_VENDOR_ID_NVIDIA: #ifdef CONFIG_ACPI - /* All timer overrides on Nvidia - seem to be wrong. Skip them. */ - acpi_skip_timer_override = 1; - printk(KERN_INFO - "Nvidia board detected. Ignoring ACPI timer override.\n"); + /* + * All timer overrides on Nvidia are + * wrong unless HPET is enabled. + */ + nvidia_hpet_detected = 0; + acpi_table_parse(ACPI_HPET, + nvidia_hpet_check); + if (nvidia_hpet_detected == 0) { + acpi_skip_timer_override = 1; + printk(KERN_INFO "Nvidia board " + "detected. Ignoring ACPI " + "timer override.\n"); + } #endif /* RED-PEN skip them on mptables too? */ return; diff --git a/block/as-iosched.c b/block/as-iosched.c index e25a5d79ab27..a7caf35ca0c2 100644 --- a/block/as-iosched.c +++ b/block/as-iosched.c @@ -1648,17 +1648,17 @@ static void as_exit_queue(elevator_t *e) * initialize elevator private data (as_data), and alloc a arq for * each request on the free lists */ -static int as_init_queue(request_queue_t *q, elevator_t *e) +static void *as_init_queue(request_queue_t *q, elevator_t *e) { struct as_data *ad; int i; if (!arq_pool) - return -ENOMEM; + return NULL; ad = kmalloc_node(sizeof(*ad), GFP_KERNEL, q->node); if (!ad) - return -ENOMEM; + return NULL; memset(ad, 0, sizeof(*ad)); ad->q = q; /* Identify what queue the data belongs to */ @@ -1667,7 +1667,7 @@ static int as_init_queue(request_queue_t *q, elevator_t *e) GFP_KERNEL, q->node); if (!ad->hash) { kfree(ad); - return -ENOMEM; + return NULL; } ad->arq_pool = mempool_create_node(BLKDEV_MIN_RQ, mempool_alloc_slab, @@ -1675,7 +1675,7 @@ static int as_init_queue(request_queue_t *q, elevator_t *e) if (!ad->arq_pool) { kfree(ad->hash); kfree(ad); - return -ENOMEM; + return NULL; } /* anticipatory scheduling helpers */ @@ -1696,14 +1696,13 @@ static int as_init_queue(request_queue_t *q, elevator_t *e) ad->antic_expire = default_antic_expire; ad->batch_expire[REQ_SYNC] = default_read_batch_expire; ad->batch_expire[REQ_ASYNC] = default_write_batch_expire; - e->elevator_data = ad; ad->current_batch_expires = jiffies + ad->batch_expire[REQ_SYNC]; ad->write_batch_count = ad->batch_expire[REQ_ASYNC] / 10; if (ad->write_batch_count < 2) ad->write_batch_count = 2; - return 0; + return ad; } /* diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 11ce6aaf1bd0..a46d030e092a 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -133,6 +133,7 @@ struct cfq_data { mempool_t *crq_pool; int rq_in_driver; + int hw_tag; /* * schedule slice state info @@ -500,10 +501,13 @@ static void cfq_resort_rr_list(struct cfq_queue *cfqq, int preempted) /* * if queue was preempted, just add to front to be fair. busy_rr - * isn't sorted. + * isn't sorted, but insert at the back for fairness. */ if (preempted || list == &cfqd->busy_rr) { - list_add(&cfqq->cfq_list, list); + if (preempted) + list = list->prev; + + list_add_tail(&cfqq->cfq_list, list); return; } @@ -664,6 +668,15 @@ static void cfq_activate_request(request_queue_t *q, struct request *rq) struct cfq_data *cfqd = q->elevator->elevator_data; cfqd->rq_in_driver++; + + /* + * If the depth is larger 1, it really could be queueing. But lets + * make the mark a little higher - idling could still be good for + * low queueing, and a low queueing number could also just indicate + * a SCSI mid layer like behaviour where limit+1 is often seen. + */ + if (!cfqd->hw_tag && cfqd->rq_in_driver > 4) + cfqd->hw_tag = 1; } static void cfq_deactivate_request(request_queue_t *q, struct request *rq) @@ -879,6 +892,13 @@ static struct cfq_queue *cfq_set_active_queue(struct cfq_data *cfqd) cfqq = list_entry_cfqq(cfqd->cur_rr.next); /* + * If no new queues are available, check if the busy list has some + * before falling back to idle io. + */ + if (!cfqq && !list_empty(&cfqd->busy_rr)) + cfqq = list_entry_cfqq(cfqd->busy_rr.next); + + /* * if we have idle queues and no rt or be queues had pending * requests, either allow immediate service if the grace period * has passed or arm the idle grace timer @@ -1458,7 +1478,8 @@ retry: * set ->slice_left to allow preemption for a new process */ cfqq->slice_left = 2 * cfqd->cfq_slice_idle; - cfq_mark_cfqq_idle_window(cfqq); + if (!cfqd->hw_tag) + cfq_mark_cfqq_idle_window(cfqq); cfq_mark_cfqq_prio_changed(cfqq); cfq_init_prio_data(cfqq); } @@ -1649,7 +1670,7 @@ cfq_update_idle_window(struct cfq_data *cfqd, struct cfq_queue *cfqq, { int enable_idle = cfq_cfqq_idle_window(cfqq); - if (!cic->ioc->task || !cfqd->cfq_slice_idle) + if (!cic->ioc->task || !cfqd->cfq_slice_idle || cfqd->hw_tag) enable_idle = 0; else if (sample_valid(cic->ttime_samples)) { if (cic->ttime_mean > cfqd->cfq_slice_idle) @@ -1740,14 +1761,24 @@ cfq_crq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq, cfqq->next_crq = cfq_choose_req(cfqd, cfqq->next_crq, crq); + cic = crq->io_context; + /* * we never wait for an async request and we don't allow preemption * of an async request. so just return early */ - if (!cfq_crq_is_sync(crq)) + if (!cfq_crq_is_sync(crq)) { + /* + * sync process issued an async request, if it's waiting + * then expire it and kick rq handling. + */ + if (cic == cfqd->active_cic && + del_timer(&cfqd->idle_slice_timer)) { + cfq_slice_expired(cfqd, 0); + cfq_start_queueing(cfqd, cfqq); + } return; - - cic = crq->io_context; + } cfq_update_io_thinktime(cfqd, cic); cfq_update_io_seektime(cfqd, cic, crq); @@ -2165,10 +2196,9 @@ static void cfq_idle_class_timer(unsigned long data) * race with a non-idle queue, reset timer */ end = cfqd->last_end_request + CFQ_IDLE_GRACE; - if (!time_after_eq(jiffies, end)) { - cfqd->idle_class_timer.expires = end; - add_timer(&cfqd->idle_class_timer); - } else + if (!time_after_eq(jiffies, end)) + mod_timer(&cfqd->idle_class_timer, end); + else cfq_schedule_dispatch(cfqd); spin_unlock_irqrestore(cfqd->queue->queue_lock, flags); @@ -2221,14 +2251,14 @@ static void cfq_exit_queue(elevator_t *e) kfree(cfqd); } -static int cfq_init_queue(request_queue_t *q, elevator_t *e) +static void *cfq_init_queue(request_queue_t *q, elevator_t *e) { struct cfq_data *cfqd; int i; cfqd = kmalloc(sizeof(*cfqd), GFP_KERNEL); if (!cfqd) - return -ENOMEM; + return NULL; memset(cfqd, 0, sizeof(*cfqd)); @@ -2258,8 +2288,6 @@ static int cfq_init_queue(request_queue_t *q, elevator_t *e) for (i = 0; i < CFQ_QHASH_ENTRIES; i++) INIT_HLIST_HEAD(&cfqd->cfq_hash[i]); - e->elevator_data = cfqd; - cfqd->queue = q; cfqd->max_queued = q->nr_requests / 4; @@ -2286,14 +2314,14 @@ static int cfq_init_queue(request_queue_t *q, elevator_t *e) cfqd->cfq_slice_async_rq = cfq_slice_async_rq; cfqd->cfq_slice_idle = cfq_slice_idle; - return 0; + return cfqd; out_crqpool: kfree(cfqd->cfq_hash); out_cfqhash: kfree(cfqd->crq_hash); out_crqhash: kfree(cfqd); - return -ENOMEM; + return NULL; } static void cfq_slab_kill(void) diff --git a/block/deadline-iosched.c b/block/deadline-iosched.c index 399fa1e60e1f..3bd0415a9828 100644 --- a/block/deadline-iosched.c +++ b/block/deadline-iosched.c @@ -613,24 +613,24 @@ static void deadline_exit_queue(elevator_t *e) * initialize elevator private data (deadline_data), and alloc a drq for * each request on the free lists */ -static int deadline_init_queue(request_queue_t *q, elevator_t *e) +static void *deadline_init_queue(request_queue_t *q, elevator_t *e) { struct deadline_data *dd; int i; if (!drq_pool) - return -ENOMEM; + return NULL; dd = kmalloc_node(sizeof(*dd), GFP_KERNEL, q->node); if (!dd) - return -ENOMEM; + return NULL; memset(dd, 0, sizeof(*dd)); dd->hash = kmalloc_node(sizeof(struct list_head)*DL_HASH_ENTRIES, GFP_KERNEL, q->node); if (!dd->hash) { kfree(dd); - return -ENOMEM; + return NULL; } dd->drq_pool = mempool_create_node(BLKDEV_MIN_RQ, mempool_alloc_slab, @@ -638,7 +638,7 @@ static int deadline_init_queue(request_queue_t *q, elevator_t *e) if (!dd->drq_pool) { kfree(dd->hash); kfree(dd); - return -ENOMEM; + return NULL; } for (i = 0; i < DL_HASH_ENTRIES; i++) @@ -653,8 +653,7 @@ static int deadline_init_queue(request_queue_t *q, elevator_t *e) dd->writes_starved = writes_starved; dd->front_merges = 1; dd->fifo_batch = fifo_batch; - e->elevator_data = dd; - return 0; + return dd; } static void deadline_put_request(request_queue_t *q, struct request *rq) diff --git a/block/elevator.c b/block/elevator.c index 8768a367fdde..a0afdd317cef 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -121,16 +121,16 @@ static struct elevator_type *elevator_get(const char *name) return e; } -static int elevator_attach(request_queue_t *q, struct elevator_queue *eq) +static void *elevator_init_queue(request_queue_t *q, struct elevator_queue *eq) { - int ret = 0; + return eq->ops->elevator_init_fn(q, eq); +} +static void elevator_attach(request_queue_t *q, struct elevator_queue *eq, + void *data) +{ q->elevator = eq; - - if (eq->ops->elevator_init_fn) - ret = eq->ops->elevator_init_fn(q, eq); - - return ret; + eq->elevator_data = data; } static char chosen_elevator[16]; @@ -181,6 +181,7 @@ int elevator_init(request_queue_t *q, char *name) struct elevator_type *e = NULL; struct elevator_queue *eq; int ret = 0; + void *data; INIT_LIST_HEAD(&q->queue_head); q->last_merge = NULL; @@ -202,10 +203,13 @@ int elevator_init(request_queue_t *q, char *name) if (!eq) return -ENOMEM; - ret = elevator_attach(q, eq); - if (ret) + data = elevator_init_queue(q, eq); + if (!data) { kobject_put(&eq->kobj); + return -ENOMEM; + } + elevator_attach(q, eq, data); return ret; } @@ -722,13 +726,16 @@ int elv_register_queue(struct request_queue *q) return error; } +static void __elv_unregister_queue(elevator_t *e) +{ + kobject_uevent(&e->kobj, KOBJ_REMOVE); + kobject_del(&e->kobj); +} + void elv_unregister_queue(struct request_queue *q) { - if (q) { - elevator_t *e = q->elevator; - kobject_uevent(&e->kobj, KOBJ_REMOVE); - kobject_del(&e->kobj); - } + if (q) + __elv_unregister_queue(q->elevator); } int elv_register(struct elevator_type *e) @@ -780,6 +787,7 @@ EXPORT_SYMBOL_GPL(elv_unregister); static int elevator_switch(request_queue_t *q, struct elevator_type *new_e) { elevator_t *old_elevator, *e; + void *data; /* * Allocate new elevator @@ -788,6 +796,12 @@ static int elevator_switch(request_queue_t *q, struct elevator_type *new_e) if (!e) return 0; + data = elevator_init_queue(q, e); + if (!data) { + kobject_put(&e->kobj); + return 0; + } + /* * Turn on BYPASS and drain all requests w/ elevator private data */ @@ -806,19 +820,19 @@ static int elevator_switch(request_queue_t *q, struct elevator_type *new_e) elv_drain_elevator(q); } - spin_unlock_irq(q->queue_lock); - /* - * unregister old elevator data + * Remember old elevator. */ - elv_unregister_queue(q); old_elevator = q->elevator; /* * attach and start new elevator */ - if (elevator_attach(q, e)) - goto fail; + elevator_attach(q, e, data); + + spin_unlock_irq(q->queue_lock); + + __elv_unregister_queue(old_elevator); if (elv_register_queue(q)) goto fail_register; @@ -837,7 +851,6 @@ fail_register: */ elevator_exit(e); e = NULL; -fail: q->elevator = old_elevator; elv_register_queue(q); clear_bit(QUEUE_FLAG_ELVSWITCH, &q->queue_flags); diff --git a/block/noop-iosched.c b/block/noop-iosched.c index f370e4a7fe6d..56a7c620574f 100644 --- a/block/noop-iosched.c +++ b/block/noop-iosched.c @@ -65,16 +65,15 @@ noop_latter_request(request_queue_t *q, struct request *rq) return list_entry(rq->queuelist.next, struct request, queuelist); } -static int noop_init_queue(request_queue_t *q, elevator_t *e) +static void *noop_init_queue(request_queue_t *q, elevator_t *e) { struct noop_data *nd; nd = kmalloc(sizeof(*nd), GFP_KERNEL); if (!nd) - return -ENOMEM; + return NULL; INIT_LIST_HEAD(&nd->queue); - e->elevator_data = nd; - return 0; + return nd; } static void noop_exit_queue(elevator_t *e) diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index abbdb37a7f5f..f36db22ce1ae 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -577,6 +577,8 @@ acpi_processor_register_performance(struct acpi_processor_performance return_VALUE(-EBUSY); } + WARN_ON(!performance); + pr->performance = performance; if (acpi_processor_get_performance_info(pr)) { @@ -609,7 +611,8 @@ acpi_processor_unregister_performance(struct acpi_processor_performance return_VOID; } - kfree(pr->performance->states); + if (pr->performance) + kfree(pr->performance->states); pr->performance = NULL; acpi_cpufreq_remove_file(pr); diff --git a/drivers/char/Makefile b/drivers/char/Makefile index f5b01c6d498e..fb919bfb2824 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -41,9 +41,9 @@ obj-$(CONFIG_N_HDLC) += n_hdlc.o obj-$(CONFIG_AMIGA_BUILTIN_SERIAL) += amiserial.o obj-$(CONFIG_SX) += sx.o generic_serial.o obj-$(CONFIG_RIO) += rio/ generic_serial.o -obj-$(CONFIG_HVC_DRIVER) += hvc_console.o obj-$(CONFIG_HVC_CONSOLE) += hvc_vio.o hvsi.o obj-$(CONFIG_HVC_RTAS) += hvc_rtas.o +obj-$(CONFIG_HVC_DRIVER) += hvc_console.o obj-$(CONFIG_RAW_DRIVER) += raw.o obj-$(CONFIG_SGI_SNSC) += snsc.o snsc_event.o obj-$(CONFIG_MMTIMER) += mmtimer.o diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c index ede365d05387..b9371d5bf790 100644 --- a/drivers/char/n_tty.c +++ b/drivers/char/n_tty.c @@ -1384,8 +1384,10 @@ do_it_again: * longer than TTY_THRESHOLD_UNTHROTTLE in canonical mode, * we won't get any more characters. */ - if (n_tty_chars_in_buffer(tty) <= TTY_THRESHOLD_UNTHROTTLE) + if (n_tty_chars_in_buffer(tty) <= TTY_THRESHOLD_UNTHROTTLE) { + n_tty_set_room(tty); check_unthrottle(tty); + } if (b - buf >= minimum) break; diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c index 128b2632512d..eab5394da666 100644 --- a/drivers/char/pcmcia/cm4000_cs.c +++ b/drivers/char/pcmcia/cm4000_cs.c @@ -149,7 +149,7 @@ struct cm4000_dev { #define ZERO_DEV(dev) \ memset(&dev->atr_csum,0, \ sizeof(struct cm4000_dev) - \ - /*link*/ sizeof(struct pcmcia_device) - \ + /*link*/ sizeof(struct pcmcia_device *) - \ /*node*/ sizeof(dev_node_t) - \ /*atr*/ MAX_ATR*sizeof(char) - \ /*rbuf*/ 512*sizeof(char) - \ diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c index 8a23fb54c693..5413dc43b9f1 100644 --- a/drivers/ieee1394/sbp2.c +++ b/drivers/ieee1394/sbp2.c @@ -845,7 +845,7 @@ static struct scsi_id_instance_data *sbp2_alloc_device(struct unit_directory *ud &sbp2_highlevel, ud->ne->host, &sbp2_ops, sizeof(struct sbp2_status_block), sizeof(quadlet_t), 0x010000000000ULL, CSR1212_ALL_SPACE_END); - if (!scsi_id->status_fifo_addr) { + if (scsi_id->status_fifo_addr == ~0ULL) { SBP2_ERR("failed to allocate status FIFO address range"); goto failed_alloc; } diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c index a54da42849ae..8406839b91cf 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c @@ -275,6 +275,7 @@ static void ipoib_ib_handle_wc(struct net_device *dev, spin_lock_irqsave(&priv->tx_lock, flags); ++priv->tx_tail; if (netif_queue_stopped(dev) && + test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags) && priv->tx_head - priv->tx_tail <= ipoib_sendq_size >> 1) netif_wake_queue(dev); spin_unlock_irqrestore(&priv->tx_lock, flags); diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 9080853fe283..a30084076ac8 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -1605,6 +1605,21 @@ mpt_resume(struct pci_dev *pdev) } #endif +static int +mpt_signal_reset(int index, MPT_ADAPTER *ioc, int reset_phase) +{ + if ((MptDriverClass[index] == MPTSPI_DRIVER && + ioc->bus_type != SPI) || + (MptDriverClass[index] == MPTFC_DRIVER && + ioc->bus_type != FC) || + (MptDriverClass[index] == MPTSAS_DRIVER && + ioc->bus_type != SAS)) + /* make sure we only call the relevant reset handler + * for the bus */ + return 0; + return (MptResetHandlers[index])(ioc, reset_phase); +} + /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /* * mpt_do_ioc_recovery - Initialize or recover MPT adapter. @@ -1885,14 +1900,14 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag) if ((ret == 0) && MptResetHandlers[ii]) { dprintk((MYIOC_s_INFO_FMT "Calling IOC post_reset handler #%d\n", ioc->name, ii)); - rc += (*(MptResetHandlers[ii]))(ioc, MPT_IOC_POST_RESET); + rc += mpt_signal_reset(ii, ioc, MPT_IOC_POST_RESET); handlers++; } if (alt_ioc_ready && MptResetHandlers[ii]) { drsprintk((MYIOC_s_INFO_FMT "Calling alt-%s post_reset handler #%d\n", ioc->name, ioc->alt_ioc->name, ii)); - rc += (*(MptResetHandlers[ii]))(ioc->alt_ioc, MPT_IOC_POST_RESET); + rc += mpt_signal_reset(ii, ioc->alt_ioc, MPT_IOC_POST_RESET); handlers++; } } @@ -3267,11 +3282,11 @@ mpt_diag_reset(MPT_ADAPTER *ioc, int ignore, int sleepFlag) if (MptResetHandlers[ii]) { dprintk((MYIOC_s_INFO_FMT "Calling IOC pre_reset handler #%d\n", ioc->name, ii)); - r += (*(MptResetHandlers[ii]))(ioc, MPT_IOC_PRE_RESET); + r += mpt_signal_reset(ii, ioc, MPT_IOC_PRE_RESET); if (ioc->alt_ioc) { dprintk((MYIOC_s_INFO_FMT "Calling alt-%s pre_reset handler #%d\n", ioc->name, ioc->alt_ioc->name, ii)); - r += (*(MptResetHandlers[ii]))(ioc->alt_ioc, MPT_IOC_PRE_RESET); + r += mpt_signal_reset(ii, ioc->alt_ioc, MPT_IOC_PRE_RESET); } } } @@ -5706,11 +5721,11 @@ mpt_HardResetHandler(MPT_ADAPTER *ioc, int sleepFlag) if (MptResetHandlers[ii]) { dtmprintk((MYIOC_s_INFO_FMT "Calling IOC reset_setup handler #%d\n", ioc->name, ii)); - r += (*(MptResetHandlers[ii]))(ioc, MPT_IOC_SETUP_RESET); + r += mpt_signal_reset(ii, ioc, MPT_IOC_SETUP_RESET); if (ioc->alt_ioc) { dtmprintk((MYIOC_s_INFO_FMT "Calling alt-%s setup reset handler #%d\n", ioc->name, ioc->alt_ioc->name, ii)); - r += (*(MptResetHandlers[ii]))(ioc->alt_ioc, MPT_IOC_SETUP_RESET); + r += mpt_signal_reset(ii, ioc->alt_ioc, MPT_IOC_SETUP_RESET); } } } diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c index f2a4d382ea19..3201de053943 100644 --- a/drivers/message/fusion/mptspi.c +++ b/drivers/message/fusion/mptspi.c @@ -831,6 +831,7 @@ mptspi_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) return rc; } +#ifdef CONFIG_PM /* * spi module resume handler */ @@ -846,6 +847,7 @@ mptspi_resume(struct pci_dev *pdev) return rc; } +#endif /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ diff --git a/drivers/message/i2o/exec-osm.c b/drivers/message/i2o/exec-osm.c index 5ea133c59afb..7bd4d85d0b42 100644 --- a/drivers/message/i2o/exec-osm.c +++ b/drivers/message/i2o/exec-osm.c @@ -55,6 +55,7 @@ struct i2o_exec_wait { u32 m; /* message id */ struct i2o_message *msg; /* pointer to the reply message */ struct list_head list; /* node in global wait list */ + spinlock_t lock; /* lock before modifying */ }; /* Work struct needed to handle LCT NOTIFY replies */ @@ -87,6 +88,7 @@ static struct i2o_exec_wait *i2o_exec_wait_alloc(void) return NULL; INIT_LIST_HEAD(&wait->list); + spin_lock_init(&wait->lock); return wait; }; @@ -125,6 +127,7 @@ int i2o_msg_post_wait_mem(struct i2o_controller *c, struct i2o_message *msg, DECLARE_WAIT_QUEUE_HEAD(wq); struct i2o_exec_wait *wait; static u32 tcntxt = 0x80000000; + long flags; int rc = 0; wait = i2o_exec_wait_alloc(); @@ -146,33 +149,28 @@ int i2o_msg_post_wait_mem(struct i2o_controller *c, struct i2o_message *msg, wait->tcntxt = tcntxt++; msg->u.s.tcntxt = cpu_to_le32(wait->tcntxt); + wait->wq = &wq; + /* + * we add elements to the head, because if a entry in the list will + * never be removed, we have to iterate over it every time + */ + list_add(&wait->list, &i2o_exec_wait_list); + /* * Post the message to the controller. At some point later it will * return. If we time out before it returns then complete will be zero. */ i2o_msg_post(c, msg); - if (!wait->complete) { - wait->wq = &wq; - /* - * we add elements add the head, because if a entry in the list - * will never be removed, we have to iterate over it every time - */ - list_add(&wait->list, &i2o_exec_wait_list); - - wait_event_interruptible_timeout(wq, wait->complete, - timeout * HZ); + wait_event_interruptible_timeout(wq, wait->complete, timeout * HZ); - wait->wq = NULL; - } + spin_lock_irqsave(&wait->lock, flags); - barrier(); + wait->wq = NULL; - if (wait->complete) { + if (wait->complete) rc = le32_to_cpu(wait->msg->body[0]) >> 24; - i2o_flush_reply(c, wait->m); - i2o_exec_wait_free(wait); - } else { + else { /* * We cannot remove it now. This is important. When it does * terminate (which it must do if the controller has not @@ -186,6 +184,13 @@ int i2o_msg_post_wait_mem(struct i2o_controller *c, struct i2o_message *msg, rc = -ETIMEDOUT; } + spin_unlock_irqrestore(&wait->lock, flags); + + if (rc != -ETIMEDOUT) { + i2o_flush_reply(c, wait->m); + i2o_exec_wait_free(wait); + } + return rc; }; @@ -213,7 +218,6 @@ static int i2o_msg_post_wait_complete(struct i2o_controller *c, u32 m, { struct i2o_exec_wait *wait, *tmp; unsigned long flags; - static spinlock_t lock = SPIN_LOCK_UNLOCKED; int rc = 1; /* @@ -223,23 +227,24 @@ static int i2o_msg_post_wait_complete(struct i2o_controller *c, u32 m, * already expired. Not much we can do about that except log it for * debug purposes, increase timeout, and recompile. */ - spin_lock_irqsave(&lock, flags); list_for_each_entry_safe(wait, tmp, &i2o_exec_wait_list, list) { if (wait->tcntxt == context) { - list_del(&wait->list); + spin_lock_irqsave(&wait->lock, flags); - spin_unlock_irqrestore(&lock, flags); + list_del(&wait->list); wait->m = m; wait->msg = msg; wait->complete = 1; - barrier(); - - if (wait->wq) { - wake_up_interruptible(wait->wq); + if (wait->wq) rc = 0; - } else { + else + rc = -1; + + spin_unlock_irqrestore(&wait->lock, flags); + + if (rc) { struct device *dev; dev = &c->pdev->dev; @@ -248,15 +253,13 @@ static int i2o_msg_post_wait_complete(struct i2o_controller *c, u32 m, c->name); i2o_dma_free(dev, &wait->dma); i2o_exec_wait_free(wait); - rc = -1; - } + } else + wake_up_interruptible(wait->wq); return rc; } } - spin_unlock_irqrestore(&lock, flags); - osm_warn("%s: Bogus reply in POST WAIT (tr-context: %08x)!\n", c->name, context); @@ -322,14 +325,9 @@ static DEVICE_ATTR(product_id, S_IRUGO, i2o_exec_show_product_id, NULL); static int i2o_exec_probe(struct device *dev) { struct i2o_device *i2o_dev = to_i2o_device(dev); - struct i2o_controller *c = i2o_dev->iop; i2o_event_register(i2o_dev, &i2o_exec_driver, 0, 0xffffffff); - c->exec = i2o_dev; - - i2o_exec_lct_notify(c, c->lct->change_ind + 1); - device_create_file(dev, &dev_attr_vendor_id); device_create_file(dev, &dev_attr_product_id); @@ -523,6 +521,8 @@ static int i2o_exec_lct_notify(struct i2o_controller *c, u32 change_ind) struct device *dev; struct i2o_message *msg; + down(&c->lct_lock); + dev = &c->pdev->dev; if (i2o_dma_realloc @@ -545,6 +545,8 @@ static int i2o_exec_lct_notify(struct i2o_controller *c, u32 change_ind) i2o_msg_post(c, msg); + up(&c->lct_lock); + return 0; }; diff --git a/drivers/message/i2o/iop.c b/drivers/message/i2o/iop.c index 492167446936..febbdd4e0605 100644 --- a/drivers/message/i2o/iop.c +++ b/drivers/message/i2o/iop.c @@ -804,8 +804,6 @@ void i2o_iop_remove(struct i2o_controller *c) /* Ask the IOP to switch to RESET state */ i2o_iop_reset(c); - - put_device(&c->device); } /** @@ -1059,7 +1057,7 @@ struct i2o_controller *i2o_iop_alloc(void) snprintf(poolname, sizeof(poolname), "i2o_%s_msg_inpool", c->name); if (i2o_pool_alloc - (&c->in_msg, poolname, I2O_INBOUND_MSG_FRAME_SIZE * 4, + (&c->in_msg, poolname, I2O_INBOUND_MSG_FRAME_SIZE * 4 + sizeof(u32), I2O_MSG_INPOOL_MIN)) { kfree(c); return ERR_PTR(-ENOMEM); diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 003b077c2324..45bcf098e762 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -84,7 +84,7 @@ config MMC_WBSD config MMC_AU1X tristate "Alchemy AU1XX0 MMC Card Interface support" - depends on SOC_AU1X00 && MMC + depends on MMC && SOC_AU1200 help This selects the AMD Alchemy(R) Multimedia card interface. If you have a Alchemy platform with a MMC slot, say Y or M here. diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c index ecccca35c6f4..d1c705b412c2 100644 --- a/drivers/net/e1000/e1000_ethtool.c +++ b/drivers/net/e1000/e1000_ethtool.c @@ -870,13 +870,16 @@ e1000_intr_test(struct e1000_adapter *adapter, uint64_t *data) *data = 0; /* Hook up test interrupt handler just for this test */ - if (!request_irq(irq, &e1000_test_intr, 0, netdev->name, netdev)) { + if (!request_irq(irq, &e1000_test_intr, SA_PROBEIRQ, netdev->name, + netdev)) { shared_int = FALSE; } else if (request_irq(irq, &e1000_test_intr, SA_SHIRQ, netdev->name, netdev)){ *data = 1; return -1; } + DPRINTK(PROBE,INFO, "testing %s interrupt\n", + (shared_int ? "shared" : "unshared")); /* Disable all the interrupts */ E1000_WRITE_REG(&adapter->hw, IMC, 0xFFFFFFFF); diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index ed15fcaedaf9..97e71a4fe8eb 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -3519,7 +3519,7 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter, buffer_info = &rx_ring->buffer_info[i]; while (rx_desc->status & E1000_RXD_STAT_DD) { - struct sk_buff *skb, *next_skb; + struct sk_buff *skb; u8 status; #ifdef CONFIG_E1000_NAPI if (*work_done >= work_to_do) @@ -3537,8 +3537,6 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter, prefetch(next_rxd); next_buffer = &rx_ring->buffer_info[i]; - next_skb = next_buffer->skb; - prefetch(next_skb->data - NET_IP_ALIGN); cleaned = TRUE; cleaned_count++; @@ -3668,7 +3666,7 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter, struct e1000_buffer *buffer_info, *next_buffer; struct e1000_ps_page *ps_page; struct e1000_ps_page_dma *ps_page_dma; - struct sk_buff *skb, *next_skb; + struct sk_buff *skb; unsigned int i, j; uint32_t length, staterr; int cleaned_count = 0; @@ -3697,8 +3695,6 @@ e1000_clean_rx_irq_ps(struct e1000_adapter *adapter, prefetch(next_rxd); next_buffer = &rx_ring->buffer_info[i]; - next_skb = next_buffer->skb; - prefetch(next_skb->data - NET_IP_ALIGN); cleaned = TRUE; cleaned_count++; diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 705e1229d89d..feb5b223cd60 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -2615,6 +2615,18 @@ static int nv_nway_reset(struct net_device *dev) return ret; } +#ifdef NETIF_F_TSO +static int nv_set_tso(struct net_device *dev, u32 value) +{ + struct fe_priv *np = netdev_priv(dev); + + if ((np->driver_data & DEV_HAS_CHECKSUM)) + return ethtool_op_set_tso(dev, value); + else + return value ? -EOPNOTSUPP : 0; +} +#endif + static struct ethtool_ops ops = { .get_drvinfo = nv_get_drvinfo, .get_link = ethtool_op_get_link, @@ -2626,6 +2638,10 @@ static struct ethtool_ops ops = { .get_regs = nv_get_regs, .nway_reset = nv_nway_reset, .get_perm_addr = ethtool_op_get_perm_addr, +#ifdef NETIF_F_TSO + .get_tso = ethtool_op_get_tso, + .set_tso = nv_set_tso +#endif }; static void nv_vlan_rx_register(struct net_device *dev, struct vlan_group *grp) diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index 66e74f740261..bf58db29e2ed 100644 --- a/drivers/net/netconsole.c +++ b/drivers/net/netconsole.c @@ -107,7 +107,7 @@ static int init_netconsole(void) if(!configured) { printk("netconsole: not configured, aborting\n"); - return -EINVAL; + return 0; } if(netpoll_setup(&np)) diff --git a/drivers/net/pcmcia/nmclan_cs.c b/drivers/net/pcmcia/nmclan_cs.c index 4260c2128f47..a8f6bfc96fd2 100644 --- a/drivers/net/pcmcia/nmclan_cs.c +++ b/drivers/net/pcmcia/nmclan_cs.c @@ -1204,7 +1204,7 @@ static int mace_rx(struct net_device *dev, unsigned char RxCnt) dev->last_rx = jiffies; lp->linux_stats.rx_packets++; - lp->linux_stats.rx_bytes += skb->len; + lp->linux_stats.rx_bytes += pkt_len; outb(0xFF, ioaddr + AM2150_RCV_NEXT); /* skip to next frame */ continue; } else { diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c index 475dc930380f..0d101a18026a 100644 --- a/drivers/net/pppoe.c +++ b/drivers/net/pppoe.c @@ -861,6 +861,9 @@ static int __pppoe_xmit(struct sock *sk, struct sk_buff *skb) * give dev_queue_xmit something it can free. */ skb2 = skb_clone(skb, GFP_ATOMIC); + + if (skb2 == NULL) + goto abort; } ph = (struct pppoe_hdr *) skb_push(skb2, sizeof(struct pppoe_hdr)); diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 49ad60b72657..862c226dbbe2 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -69,8 +69,8 @@ #define DRV_MODULE_NAME "tg3" #define PFX DRV_MODULE_NAME ": " -#define DRV_MODULE_VERSION "3.58" -#define DRV_MODULE_RELDATE "May 22, 2006" +#define DRV_MODULE_VERSION "3.59" +#define DRV_MODULE_RELDATE "June 8, 2006" #define TG3_DEF_MAC_MODE 0 #define TG3_DEF_RX_MODE 0 @@ -4485,9 +4485,8 @@ static void tg3_disable_nvram_access(struct tg3 *tp) /* tp->lock is held. */ static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind) { - if (!(tp->tg3_flags2 & TG3_FLG2_SUN_570X)) - tg3_write_mem(tp, NIC_SRAM_FIRMWARE_MBOX, - NIC_SRAM_FIRMWARE_MBOX_MAGIC1); + tg3_write_mem(tp, NIC_SRAM_FIRMWARE_MBOX, + NIC_SRAM_FIRMWARE_MBOX_MAGIC1); if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) { switch (kind) { @@ -4568,13 +4567,12 @@ static int tg3_chip_reset(struct tg3 *tp) void (*write_op)(struct tg3 *, u32, u32); int i; - if (!(tp->tg3_flags2 & TG3_FLG2_SUN_570X)) { - tg3_nvram_lock(tp); - /* No matching tg3_nvram_unlock() after this because - * chip reset below will undo the nvram lock. - */ - tp->nvram_lock_cnt = 0; - } + tg3_nvram_lock(tp); + + /* No matching tg3_nvram_unlock() after this because + * chip reset below will undo the nvram lock. + */ + tp->nvram_lock_cnt = 0; if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 || GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 || @@ -4727,20 +4725,25 @@ static int tg3_chip_reset(struct tg3 *tp) tw32_f(MAC_MODE, 0); udelay(40); - if (!(tp->tg3_flags2 & TG3_FLG2_SUN_570X)) { - /* Wait for firmware initialization to complete. */ - for (i = 0; i < 100000; i++) { - tg3_read_mem(tp, NIC_SRAM_FIRMWARE_MBOX, &val); - if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1) - break; - udelay(10); - } - if (i >= 100000) { - printk(KERN_ERR PFX "tg3_reset_hw timed out for %s, " - "firmware will not restart magic=%08x\n", - tp->dev->name, val); - return -ENODEV; - } + /* Wait for firmware initialization to complete. */ + for (i = 0; i < 100000; i++) { + tg3_read_mem(tp, NIC_SRAM_FIRMWARE_MBOX, &val); + if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1) + break; + udelay(10); + } + + /* Chip might not be fitted with firmare. Some Sun onboard + * parts are configured like that. So don't signal the timeout + * of the above loop as an error, but do report the lack of + * running firmware once. + */ + if (i >= 100000 && + !(tp->tg3_flags2 & TG3_FLG2_NO_FWARE_REPORTED)) { + tp->tg3_flags2 |= TG3_FLG2_NO_FWARE_REPORTED; + + printk(KERN_INFO PFX "%s: No firmware running.\n", + tp->dev->name); } if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) && @@ -9075,9 +9078,6 @@ static void __devinit tg3_nvram_init(struct tg3 *tp) { int j; - if (tp->tg3_flags2 & TG3_FLG2_SUN_570X) - return; - tw32_f(GRC_EEPROM_ADDR, (EEPROM_ADDR_FSM_RESET | (EEPROM_DEFAULT_CLOCK_PERIOD << @@ -9210,11 +9210,6 @@ static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val) { int ret; - if (tp->tg3_flags2 & TG3_FLG2_SUN_570X) { - printk(KERN_ERR PFX "Attempt to do nvram_read on Sun 570X\n"); - return -EINVAL; - } - if (!(tp->tg3_flags & TG3_FLAG_NVRAM)) return tg3_nvram_read_using_eeprom(tp, offset, val); @@ -9447,11 +9442,6 @@ static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf) { int ret; - if (tp->tg3_flags2 & TG3_FLG2_SUN_570X) { - printk(KERN_ERR PFX "Attempt to do nvram_write on Sun 570X\n"); - return -EINVAL; - } - if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) { tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl & ~GRC_LCLCTRL_GPIO_OUTPUT1); @@ -9578,15 +9568,19 @@ static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp) pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL, tp->misc_host_ctrl); + /* The memory arbiter has to be enabled in order for SRAM accesses + * to succeed. Normally on powerup the tg3 chip firmware will make + * sure it is enabled, but other entities such as system netboot + * code might disable it. + */ + val = tr32(MEMARB_MODE); + tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE); + tp->phy_id = PHY_ID_INVALID; tp->led_ctrl = LED_CTRL_MODE_PHY_1; - /* Do not even try poking around in here on Sun parts. */ - if (tp->tg3_flags2 & TG3_FLG2_SUN_570X) { - /* All SUN chips are built-in LOMs. */ - tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT; - return; - } + /* Assume an onboard device by default. */ + tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT; tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val); if (val == NIC_SRAM_DATA_SIG_MAGIC) { @@ -9686,6 +9680,8 @@ static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp) if (nic_cfg & NIC_SRAM_DATA_CFG_EEPROM_WP) tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT; + else + tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT; if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) { tp->tg3_flags |= TG3_FLAG_ENABLE_ASF; @@ -9834,16 +9830,8 @@ static void __devinit tg3_read_partno(struct tg3 *tp) int i; u32 magic; - if (tp->tg3_flags2 & TG3_FLG2_SUN_570X) { - /* Sun decided not to put the necessary bits in the - * NVRAM of their onboard tg3 parts :( - */ - strcpy(tp->board_part_number, "Sun 570X"); - return; - } - if (tg3_nvram_read_swab(tp, 0x0, &magic)) - return; + goto out_not_found; if (magic == TG3_EEPROM_MAGIC) { for (i = 0; i < 256; i += 4) { @@ -9874,6 +9862,9 @@ static void __devinit tg3_read_partno(struct tg3 *tp) break; msleep(1); } + if (!(tmp16 & 0x8000)) + goto out_not_found; + pci_read_config_dword(tp->pdev, vpd_cap + PCI_VPD_DATA, &tmp); tmp = cpu_to_le32(tmp); @@ -9965,37 +9956,6 @@ static void __devinit tg3_read_fw_ver(struct tg3 *tp) } } -#ifdef CONFIG_SPARC64 -static int __devinit tg3_is_sun_570X(struct tg3 *tp) -{ - struct pci_dev *pdev = tp->pdev; - struct pcidev_cookie *pcp = pdev->sysdata; - - if (pcp != NULL) { - int node = pcp->prom_node; - u32 venid; - int err; - - err = prom_getproperty(node, "subsystem-vendor-id", - (char *) &venid, sizeof(venid)); - if (err == 0 || err == -1) - return 0; - if (venid == PCI_VENDOR_ID_SUN) - return 1; - - /* TG3 chips onboard the SunBlade-2500 don't have the - * subsystem-vendor-id set to PCI_VENDOR_ID_SUN but they - * are distinguishable from non-Sun variants by being - * named "network" by the firmware. Non-Sun cards will - * show up as being named "ethernet". - */ - if (!strcmp(pcp->prom_name, "network")) - return 1; - } - return 0; -} -#endif - static int __devinit tg3_get_invariants(struct tg3 *tp) { static struct pci_device_id write_reorder_chipsets[] = { @@ -10012,11 +9972,6 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) u16 pci_cmd; int err; -#ifdef CONFIG_SPARC64 - if (tg3_is_sun_570X(tp)) - tp->tg3_flags2 |= TG3_FLG2_SUN_570X; -#endif - /* Force memory write invalidate off. If we leave it on, * then on 5700_BX chips we have to enable a workaround. * The workaround is to set the TG3PCI_DMA_RW_CTRL boundary @@ -10312,8 +10267,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp) if (tp->write32 == tg3_write_indirect_reg32 || ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) && (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 || - GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) || - (tp->tg3_flags2 & TG3_FLG2_SUN_570X)) + GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701))) tp->tg3_flags |= TG3_FLAG_SRAM_USE_CONFIG; /* Get eeprom hw config before calling tg3_set_power_state(). @@ -10594,8 +10548,7 @@ static int __devinit tg3_get_device_address(struct tg3 *tp) #endif mac_offset = 0x7c; - if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 && - !(tp->tg3_flags & TG3_FLG2_SUN_570X)) || + if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) || (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) { if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID) mac_offset = 0xcc; @@ -10622,8 +10575,7 @@ static int __devinit tg3_get_device_address(struct tg3 *tp) } if (!addr_ok) { /* Next, try NVRAM. */ - if (!(tp->tg3_flags & TG3_FLG2_SUN_570X) && - !tg3_nvram_read(tp, mac_offset + 0, &hi) && + if (!tg3_nvram_read(tp, mac_offset + 0, &hi) && !tg3_nvram_read(tp, mac_offset + 4, &lo)) { dev->dev_addr[0] = ((hi >> 16) & 0xff); dev->dev_addr[1] = ((hi >> 24) & 0xff); diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h index 0e29b885d449..ff0faab94bd5 100644 --- a/drivers/net/tg3.h +++ b/drivers/net/tg3.h @@ -2184,7 +2184,7 @@ struct tg3 { #define TG3_FLAG_INIT_COMPLETE 0x80000000 u32 tg3_flags2; #define TG3_FLG2_RESTART_TIMER 0x00000001 -#define TG3_FLG2_SUN_570X 0x00000002 +/* 0x00000002 available */ #define TG3_FLG2_NO_ETH_WIRE_SPEED 0x00000004 #define TG3_FLG2_IS_5788 0x00000008 #define TG3_FLG2_MAX_RXPEND_64 0x00000010 @@ -2216,6 +2216,7 @@ struct tg3 { #define TG3_FLG2_HW_TSO (TG3_FLG2_HW_TSO_1 | TG3_FLG2_HW_TSO_2) #define TG3_FLG2_1SHOT_MSI 0x10000000 #define TG3_FLG2_PHY_JITTER_BUG 0x20000000 +#define TG3_FLG2_NO_FWARE_REPORTED 0x40000000 u32 split_mode_max_reqs; #define SPLIT_MODE_5704_MAX_REQ 3 diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_dma.c b/drivers/net/wireless/bcm43xx/bcm43xx_dma.c index bbecba02e697..d0318e525ba7 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_dma.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_dma.c @@ -624,25 +624,28 @@ err_destroy_tx0: static u16 generate_cookie(struct bcm43xx_dmaring *ring, int slot) { - u16 cookie = 0x0000; + u16 cookie = 0xF000; /* Use the upper 4 bits of the cookie as * DMA controller ID and store the slot number - * in the lower 12 bits + * in the lower 12 bits. + * Note that the cookie must never be 0, as this + * is a special value used in RX path. */ switch (ring->mmio_base) { default: assert(0); case BCM43xx_MMIO_DMA1_BASE: + cookie = 0xA000; break; case BCM43xx_MMIO_DMA2_BASE: - cookie = 0x1000; + cookie = 0xB000; break; case BCM43xx_MMIO_DMA3_BASE: - cookie = 0x2000; + cookie = 0xC000; break; case BCM43xx_MMIO_DMA4_BASE: - cookie = 0x3000; + cookie = 0xD000; break; } assert(((u16)slot & 0xF000) == 0x0000); @@ -660,16 +663,16 @@ struct bcm43xx_dmaring * parse_cookie(struct bcm43xx_private *bcm, struct bcm43xx_dmaring *ring = NULL; switch (cookie & 0xF000) { - case 0x0000: + case 0xA000: ring = dma->tx_ring0; break; - case 0x1000: + case 0xB000: ring = dma->tx_ring1; break; - case 0x2000: + case 0xC000: ring = dma->tx_ring2; break; - case 0x3000: + case 0xD000: ring = dma->tx_ring3; break; default: @@ -839,8 +842,18 @@ static void dma_rx(struct bcm43xx_dmaring *ring, /* We received an xmit status. */ struct bcm43xx_hwxmitstatus *hw = (struct bcm43xx_hwxmitstatus *)skb->data; struct bcm43xx_xmitstatus stat; + int i = 0; stat.cookie = le16_to_cpu(hw->cookie); + while (stat.cookie == 0) { + if (unlikely(++i >= 10000)) { + assert(0); + break; + } + udelay(2); + barrier(); + stat.cookie = le16_to_cpu(hw->cookie); + } stat.flags = hw->flags; stat.cnt1 = hw->cnt1; stat.cnt2 = hw->cnt2; diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 1456759936c5..10e1a905c144 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -285,9 +285,9 @@ static int pci_device_suspend(struct device * dev, pm_message_t state) * Default resume method for devices that have no driver provided resume, * or not even a driver at all. */ -static void pci_default_resume(struct pci_dev *pci_dev) +static int pci_default_resume(struct pci_dev *pci_dev) { - int retval; + int retval = 0; /* restore the PCI config space */ pci_restore_state(pci_dev); @@ -297,18 +297,21 @@ static void pci_default_resume(struct pci_dev *pci_dev) /* if the device was busmaster before the suspend, make it busmaster again */ if (pci_dev->is_busmaster) pci_set_master(pci_dev); + + return retval; } static int pci_device_resume(struct device * dev) { + int error; struct pci_dev * pci_dev = to_pci_dev(dev); struct pci_driver * drv = pci_dev->driver; if (drv && drv->resume) - drv->resume(pci_dev); + error = drv->resume(pci_dev); else - pci_default_resume(pci_dev); - return 0; + error = pci_default_resume(pci_dev); + return error; } static void pci_device_shutdown(struct device *dev) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 2329f941a0dc..12286275b1c8 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -461,9 +461,23 @@ int pci_restore_state(struct pci_dev *dev) { int i; + int val; - for (i = 0; i < 16; i++) - pci_write_config_dword(dev,i * 4, dev->saved_config_space[i]); + /* + * The Base Address register should be programmed before the command + * register(s) + */ + for (i = 15; i >= 0; i--) { + pci_read_config_dword(dev, i * 4, &val); + if (val != dev->saved_config_space[i]) { + printk(KERN_DEBUG "PM: Writing back config space on " + "device %s at offset %x (was %x, writing %x)\n", + pci_name(dev), i, + val, (int)dev->saved_config_space[i]); + pci_write_config_dword(dev,i * 4, + dev->saved_config_space[i]); + } + } pci_restore_msi_state(dev); pci_restore_msix_state(dev); return 0; diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 48d3b3d30c21..74b3124e8247 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -1143,6 +1143,12 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) { struct pcmcia_socket *s = pcmcia_get_socket(skt); + if (!s) { + printk(KERN_ERR "PCMCIA obtaining reference to socket %p " \ + "failed, event 0x%x lost!\n", skt, event); + return -ENODEV; + } + ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n", event, priority, skt); diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c index f6e7ee04f3dc..8c0d1a6739ad 100644 --- a/drivers/rtc/rtc-m48t86.c +++ b/drivers/rtc/rtc-m48t86.c @@ -48,33 +48,33 @@ static int m48t86_rtc_read_time(struct device *dev, struct rtc_time *tm) struct platform_device *pdev = to_platform_device(dev); struct m48t86_ops *ops = pdev->dev.platform_data; - reg = ops->readb(M48T86_REG_B); + reg = ops->readbyte(M48T86_REG_B); if (reg & M48T86_REG_B_DM) { /* data (binary) mode */ - tm->tm_sec = ops->readb(M48T86_REG_SEC); - tm->tm_min = ops->readb(M48T86_REG_MIN); - tm->tm_hour = ops->readb(M48T86_REG_HOUR) & 0x3F; - tm->tm_mday = ops->readb(M48T86_REG_DOM); + tm->tm_sec = ops->readbyte(M48T86_REG_SEC); + tm->tm_min = ops->readbyte(M48T86_REG_MIN); + tm->tm_hour = ops->readbyte(M48T86_REG_HOUR) & 0x3F; + tm->tm_mday = ops->readbyte(M48T86_REG_DOM); /* tm_mon is 0-11 */ - tm->tm_mon = ops->readb(M48T86_REG_MONTH) - 1; - tm->tm_year = ops->readb(M48T86_REG_YEAR) + 100; - tm->tm_wday = ops->readb(M48T86_REG_DOW); + tm->tm_mon = ops->readbyte(M48T86_REG_MONTH) - 1; + tm->tm_year = ops->readbyte(M48T86_REG_YEAR) + 100; + tm->tm_wday = ops->readbyte(M48T86_REG_DOW); } else { /* bcd mode */ - tm->tm_sec = BCD2BIN(ops->readb(M48T86_REG_SEC)); - tm->tm_min = BCD2BIN(ops->readb(M48T86_REG_MIN)); - tm->tm_hour = BCD2BIN(ops->readb(M48T86_REG_HOUR) & 0x3F); - tm->tm_mday = BCD2BIN(ops->readb(M48T86_REG_DOM)); + tm->tm_sec = BCD2BIN(ops->readbyte(M48T86_REG_SEC)); + tm->tm_min = BCD2BIN(ops->readbyte(M48T86_REG_MIN)); + tm->tm_hour = BCD2BIN(ops->readbyte(M48T86_REG_HOUR) & 0x3F); + tm->tm_mday = BCD2BIN(ops->readbyte(M48T86_REG_DOM)); /* tm_mon is 0-11 */ - tm->tm_mon = BCD2BIN(ops->readb(M48T86_REG_MONTH)) - 1; - tm->tm_year = BCD2BIN(ops->readb(M48T86_REG_YEAR)) + 100; - tm->tm_wday = BCD2BIN(ops->readb(M48T86_REG_DOW)); + tm->tm_mon = BCD2BIN(ops->readbyte(M48T86_REG_MONTH)) - 1; + tm->tm_year = BCD2BIN(ops->readbyte(M48T86_REG_YEAR)) + 100; + tm->tm_wday = BCD2BIN(ops->readbyte(M48T86_REG_DOW)); } /* correct the hour if the clock is in 12h mode */ if (!(reg & M48T86_REG_B_H24)) - if (ops->readb(M48T86_REG_HOUR) & 0x80) + if (ops->readbyte(M48T86_REG_HOUR) & 0x80) tm->tm_hour += 12; return 0; @@ -86,35 +86,35 @@ static int m48t86_rtc_set_time(struct device *dev, struct rtc_time *tm) struct platform_device *pdev = to_platform_device(dev); struct m48t86_ops *ops = pdev->dev.platform_data; - reg = ops->readb(M48T86_REG_B); + reg = ops->readbyte(M48T86_REG_B); /* update flag and 24h mode */ reg |= M48T86_REG_B_SET | M48T86_REG_B_H24; - ops->writeb(reg, M48T86_REG_B); + ops->writebyte(reg, M48T86_REG_B); if (reg & M48T86_REG_B_DM) { /* data (binary) mode */ - ops->writeb(tm->tm_sec, M48T86_REG_SEC); - ops->writeb(tm->tm_min, M48T86_REG_MIN); - ops->writeb(tm->tm_hour, M48T86_REG_HOUR); - ops->writeb(tm->tm_mday, M48T86_REG_DOM); - ops->writeb(tm->tm_mon + 1, M48T86_REG_MONTH); - ops->writeb(tm->tm_year % 100, M48T86_REG_YEAR); - ops->writeb(tm->tm_wday, M48T86_REG_DOW); + ops->writebyte(tm->tm_sec, M48T86_REG_SEC); + ops->writebyte(tm->tm_min, M48T86_REG_MIN); + ops->writebyte(tm->tm_hour, M48T86_REG_HOUR); + ops->writebyte(tm->tm_mday, M48T86_REG_DOM); + ops->writebyte(tm->tm_mon + 1, M48T86_REG_MONTH); + ops->writebyte(tm->tm_year % 100, M48T86_REG_YEAR); + ops->writebyte(tm->tm_wday, M48T86_REG_DOW); } else { /* bcd mode */ - ops->writeb(BIN2BCD(tm->tm_sec), M48T86_REG_SEC); - ops->writeb(BIN2BCD(tm->tm_min), M48T86_REG_MIN); - ops->writeb(BIN2BCD(tm->tm_hour), M48T86_REG_HOUR); - ops->writeb(BIN2BCD(tm->tm_mday), M48T86_REG_DOM); - ops->writeb(BIN2BCD(tm->tm_mon + 1), M48T86_REG_MONTH); - ops->writeb(BIN2BCD(tm->tm_year % 100), M48T86_REG_YEAR); - ops->writeb(BIN2BCD(tm->tm_wday), M48T86_REG_DOW); + ops->writebyte(BIN2BCD(tm->tm_sec), M48T86_REG_SEC); + ops->writebyte(BIN2BCD(tm->tm_min), M48T86_REG_MIN); + ops->writebyte(BIN2BCD(tm->tm_hour), M48T86_REG_HOUR); + ops->writebyte(BIN2BCD(tm->tm_mday), M48T86_REG_DOM); + ops->writebyte(BIN2BCD(tm->tm_mon + 1), M48T86_REG_MONTH); + ops->writebyte(BIN2BCD(tm->tm_year % 100), M48T86_REG_YEAR); + ops->writebyte(BIN2BCD(tm->tm_wday), M48T86_REG_DOW); } /* update ended */ reg &= ~M48T86_REG_B_SET; - ops->writeb(reg, M48T86_REG_B); + ops->writebyte(reg, M48T86_REG_B); return 0; } @@ -125,12 +125,12 @@ static int m48t86_rtc_proc(struct device *dev, struct seq_file *seq) struct platform_device *pdev = to_platform_device(dev); struct m48t86_ops *ops = pdev->dev.platform_data; - reg = ops->readb(M48T86_REG_B); + reg = ops->readbyte(M48T86_REG_B); seq_printf(seq, "mode\t\t: %s\n", (reg & M48T86_REG_B_DM) ? "binary" : "bcd"); - reg = ops->readb(M48T86_REG_D); + reg = ops->readbyte(M48T86_REG_D); seq_printf(seq, "battery\t\t: %s\n", (reg & M48T86_REG_D_VRT) ? "ok" : "exhausted"); @@ -157,7 +157,7 @@ static int __devinit m48t86_rtc_probe(struct platform_device *dev) platform_set_drvdata(dev, rtc); /* read battery status */ - reg = ops->readb(M48T86_REG_D); + reg = ops->readbyte(M48T86_REG_D); dev_info(&dev->dev, "battery %s\n", (reg & M48T86_REG_D_VRT) ? "ok" : "exhausted"); diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index 74a257b23383..e210f89a2449 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -45,11 +45,11 @@ struct pgid { union { __u8 fc; /* SPID function code */ struct path_state ps; /* SNID path state */ - } inf; + } __attribute__ ((packed)) inf; union { __u32 cpu_addr : 16; /* CPU address */ struct extended_cssid ext_cssid; - } pgid_high; + } __attribute__ ((packed)) pgid_high; __u32 cpu_id : 24; /* CPU identification */ __u32 cpu_model : 16; /* CPU model */ __u32 tod_high; /* high word TOD clock */ diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c index 180b3bf8b90d..49ec562d7f60 100644 --- a/drivers/s390/cio/device_fsm.c +++ b/drivers/s390/cio/device_fsm.c @@ -749,7 +749,7 @@ ccw_device_irq(struct ccw_device *cdev, enum dev_event dev_event) /* Unit check but no sense data. Need basic sense. */ if (ccw_device_do_sense(cdev, irb) != 0) goto call_handler_unsol; - memcpy(irb, &cdev->private->irb, sizeof(struct irb)); + memcpy(&cdev->private->irb, irb, sizeof(struct irb)); cdev->private->state = DEV_STATE_W4SENSE; cdev->private->intparm = 0; return; diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c index fee843fab1c7..108910f512e4 100644 --- a/drivers/scsi/ppa.c +++ b/drivers/scsi/ppa.c @@ -982,6 +982,12 @@ static int device_check(ppa_struct *dev) return -ENODEV; } +static int ppa_adjust_queue(struct scsi_device *device) +{ + blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH); + return 0; +} + static struct scsi_host_template ppa_template = { .module = THIS_MODULE, .proc_name = "ppa", @@ -997,6 +1003,7 @@ static struct scsi_host_template ppa_template = { .cmd_per_lun = 1, .use_clustering = ENABLE_CLUSTERING, .can_queue = 1, + .slave_alloc = ppa_adjust_queue, }; /*************************************************************************** diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c index f7264fd611c2..cb9082fd7e2f 100644 --- a/drivers/scsi/sata_sil24.c +++ b/drivers/scsi/sata_sil24.c @@ -454,7 +454,7 @@ static int sil24_softreset(struct ata_port *ap, int verbose, */ msleep(10); - prb->ctrl = PRB_CTRL_SRST; + prb->ctrl = cpu_to_le16(PRB_CTRL_SRST); prb->fis[1] = 0; /* no PM yet */ writel((u32)paddr, port + PORT_CMD_ACTIVATE); @@ -551,9 +551,9 @@ static void sil24_qc_prep(struct ata_queued_cmd *qc) if (qc->tf.protocol != ATA_PROT_ATAPI_NODATA) { if (qc->tf.flags & ATA_TFLAG_WRITE) - prb->ctrl = PRB_CTRL_PACKET_WRITE; + prb->ctrl = cpu_to_le16(PRB_CTRL_PACKET_WRITE); else - prb->ctrl = PRB_CTRL_PACKET_READ; + prb->ctrl = cpu_to_le16(PRB_CTRL_PACKET_READ); } else prb->ctrl = 0; diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c index 941c1e15c899..62f8cb7b3d2b 100644 --- a/drivers/scsi/scsi_devinfo.c +++ b/drivers/scsi/scsi_devinfo.c @@ -165,6 +165,7 @@ static struct { {"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD}, {"HP", "C1557A", NULL, BLIST_FORCELUN}, {"HP", "C3323-300", "4269", BLIST_NOTQ}, + {"HP", "C5713A", NULL, BLIST_NOREPORTLUN}, {"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN}, {"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, {"IBM", "2105", NULL, BLIST_RETRY_HWERROR}, diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 764a8b375ead..faee4757c03a 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -367,7 +367,7 @@ static int scsi_req_map_sg(struct request *rq, struct scatterlist *sgl, int nsegs, unsigned bufflen, gfp_t gfp) { struct request_queue *q = rq->q; - int nr_pages = (bufflen + PAGE_SIZE - 1) >> PAGE_SHIFT; + int nr_pages = (bufflen + sgl[0].offset + PAGE_SIZE - 1) >> PAGE_SHIFT; unsigned int data_len = 0, len, bytes, off; struct page *page; struct bio *bio = NULL; diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index 8b6d65e21bae..f3b16066387c 100644 --- a/drivers/scsi/scsi_transport_sas.c +++ b/drivers/scsi/scsi_transport_sas.c @@ -955,7 +955,8 @@ static int sas_user_scan(struct Scsi_Host *shost, uint channel, list_for_each_entry(rphy, &sas_host->rphy_list, list) { struct sas_phy *parent = dev_to_phy(rphy->dev.parent); - if (rphy->scsi_target_id == -1) + if (rphy->identify.device_type != SAS_END_DEVICE || + rphy->scsi_target_id == -1) continue; if ((channel == SCAN_WILD_CARD || channel == parent->port_identifier) && @@ -977,7 +978,6 @@ static int sas_user_scan(struct Scsi_Host *shost, uint channel, #define SETUP_TEMPLATE(attrb, field, perm, test) \ i->private_##attrb[count] = class_device_attr_##field; \ i->private_##attrb[count].attr.mode = perm; \ - i->private_##attrb[count].store = NULL; \ i->attrb[count] = &i->private_##attrb[count]; \ if (test) \ count++ diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index 953eb8c171d6..47ba1a79adcd 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -1745,7 +1745,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir, fbcon_redraw_move(vc, p, 0, t, count); ypan_up_redraw(vc, t, count); if (vc->vc_rows - b > 0) - fbcon_redraw_move(vc, p, b - count, + fbcon_redraw_move(vc, p, b, vc->vc_rows - b, b); } else fbcon_redraw_move(vc, p, t + count, b - t - count, t); diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index 85d166cdcae4..b55b4ea9a676 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -67,12 +67,13 @@ static struct inode *debugfs_get_inode(struct super_block *sb, int mode, dev_t d static int debugfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev) { - struct inode *inode = debugfs_get_inode(dir->i_sb, mode, dev); + struct inode *inode; int error = -EPERM; if (dentry->d_inode) return -EEXIST; + inode = debugfs_get_inode(dir->i_sb, mode, dev); if (inode) { d_instantiate(dentry, inode); dget(dentry); diff --git a/fs/namei.c b/fs/namei.c index 96723ae83c89..d6e2ee251736 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -1080,8 +1080,8 @@ static int fastcall do_path_lookup(int dfd, const char *name, nd->flags = flags; nd->depth = 0; - read_lock(¤t->fs->lock); if (*name=='/') { + read_lock(¤t->fs->lock); if (current->fs->altroot && !(nd->flags & LOOKUP_NOALT)) { nd->mnt = mntget(current->fs->altrootmnt); nd->dentry = dget(current->fs->altroot); @@ -1092,33 +1092,35 @@ static int fastcall do_path_lookup(int dfd, const char *name, } nd->mnt = mntget(current->fs->rootmnt); nd->dentry = dget(current->fs->root); + read_unlock(¤t->fs->lock); } else if (dfd == AT_FDCWD) { + read_lock(¤t->fs->lock); nd->mnt = mntget(current->fs->pwdmnt); nd->dentry = dget(current->fs->pwd); + read_unlock(¤t->fs->lock); } else { struct dentry *dentry; file = fget_light(dfd, &fput_needed); retval = -EBADF; if (!file) - goto unlock_fail; + goto out_fail; dentry = file->f_dentry; retval = -ENOTDIR; if (!S_ISDIR(dentry->d_inode->i_mode)) - goto fput_unlock_fail; + goto fput_fail; retval = file_permission(file, MAY_EXEC); if (retval) - goto fput_unlock_fail; + goto fput_fail; nd->mnt = mntget(file->f_vfsmnt); nd->dentry = dget(dentry); fput_light(file, fput_needed); } - read_unlock(¤t->fs->lock); current->total_link_count = 0; retval = link_path_walk(name, nd); out: @@ -1127,13 +1129,12 @@ out: nd->dentry->d_inode)) audit_inode(name, nd->dentry->d_inode, flags); } +out_fail: return retval; -fput_unlock_fail: +fput_fail: fput_light(file, fput_needed); -unlock_fail: - read_unlock(¤t->fs->lock); - return retval; + goto out_fail; } int fastcall path_lookup(const char *name, unsigned int flags, diff --git a/include/asm-alpha/smp.h b/include/asm-alpha/smp.h index 9950706abdf8..e1432102be05 100644 --- a/include/asm-alpha/smp.h +++ b/include/asm-alpha/smp.h @@ -45,10 +45,8 @@ extern struct cpuinfo_alpha cpu_data[NR_CPUS]; #define hard_smp_processor_id() __hard_smp_processor_id() #define raw_smp_processor_id() (current_thread_info()->cpu) -extern cpumask_t cpu_present_mask; -extern cpumask_t cpu_online_map; extern int smp_num_cpus; -#define cpu_possible_map cpu_present_mask +#define cpu_possible_map cpu_present_map int smp_call_function_on_cpu(void (*func) (void *info), void *info,int retry, int wait, cpumask_t cpu); diff --git a/include/asm-arm/arch-ixp23xx/memory.h b/include/asm-arm/arch-ixp23xx/memory.h index 6e19f46d54d1..c85fc06a043c 100644 --- a/include/asm-arm/arch-ixp23xx/memory.h +++ b/include/asm-arm/arch-ixp23xx/memory.h @@ -49,7 +49,7 @@ static inline int __ixp23xx_arch_is_coherent(void) { extern unsigned int processor_id; - if (((processor_id & 15) >= 2) || machine_is_roadrunner()) + if (((processor_id & 15) >= 4) || machine_is_roadrunner()) return 1; return 0; diff --git a/include/asm-arm/arch-l7200/serial_l7200.h b/include/asm-arm/arch-l7200/serial_l7200.h index 238c595d97ea..b1008a9d23e5 100644 --- a/include/asm-arm/arch-l7200/serial_l7200.h +++ b/include/asm-arm/arch-l7200/serial_l7200.h @@ -28,7 +28,7 @@ #define UARTDR 0x00 /* Tx/Rx data */ #define RXSTAT 0x04 /* Rx status */ #define H_UBRLCR 0x08 /* mode register high */ -#define M_UBRLCR 0x0C /* mode reg mid (MSB of buad)*/ +#define M_UBRLCR 0x0C /* mode reg mid (MSB of baud)*/ #define L_UBRLCR 0x10 /* mode reg low (LSB of baud)*/ #define UARTCON 0x14 /* control register */ #define UARTFLG 0x18 /* flag register */ diff --git a/include/asm-arm/arch-l7200/uncompress.h b/include/asm-arm/arch-l7200/uncompress.h index 9fcd40aee3e3..04be2a088639 100644 --- a/include/asm-arm/arch-l7200/uncompress.h +++ b/include/asm-arm/arch-l7200/uncompress.h @@ -6,7 +6,7 @@ * Changelog: * 05-01-2000 SJH Created * 05-13-2000 SJH Filled in function bodies - * 07-26-2000 SJH Removed hard coded buad rate + * 07-26-2000 SJH Removed hard coded baud rate */ #include <asm/hardware.h> diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index 358e4d309ceb..c2059a3a0621 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -159,17 +159,8 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres #define lazy_mmu_prot_update(pte) do { } while (0) #endif -#ifndef __HAVE_ARCH_MULTIPLE_ZERO_PAGE +#ifndef __HAVE_ARCH_MOVE_PTE #define move_pte(pte, prot, old_addr, new_addr) (pte) -#else -#define move_pte(pte, prot, old_addr, new_addr) \ -({ \ - pte_t newpte = (pte); \ - if (pte_present(pte) && pfn_valid(pte_pfn(pte)) && \ - pte_page(pte) == ZERO_PAGE(old_addr)) \ - newpte = mk_pte(ZERO_PAGE(new_addr), (prot)); \ - newpte; \ -}) #endif /* diff --git a/include/asm-mips/addrspace.h b/include/asm-mips/addrspace.h index 42520cc84b0f..1386af1cb7d9 100644 --- a/include/asm-mips/addrspace.h +++ b/include/asm-mips/addrspace.h @@ -129,6 +129,7 @@ #if defined (CONFIG_CPU_R4300) \ || defined (CONFIG_CPU_R4X00) \ || defined (CONFIG_CPU_R5000) \ + || defined (CONFIG_CPU_RM7000) \ || defined (CONFIG_CPU_NEVADA) \ || defined (CONFIG_CPU_TX49XX) \ || defined (CONFIG_CPU_MIPS64) diff --git a/include/asm-mips/delay.h b/include/asm-mips/delay.h index 64dd45150f64..928f30f8c45c 100644 --- a/include/asm-mips/delay.h +++ b/include/asm-mips/delay.h @@ -19,20 +19,22 @@ static inline void __delay(unsigned long loops) { if (sizeof(long) == 4) __asm__ __volatile__ ( - ".set\tnoreorder\n" - "1:\tbnez\t%0,1b\n\t" - "subu\t%0,1\n\t" - ".set\treorder" + " .set noreorder \n" + " .align 3 \n" + "1: bnez %0, 1b \n" + " subu %0, 1 \n" + " .set reorder \n" : "=r" (loops) : "0" (loops)); else if (sizeof(long) == 8) __asm__ __volatile__ ( - ".set\tnoreorder\n" - "1:\tbnez\t%0,1b\n\t" - "dsubu\t%0,1\n\t" - ".set\treorder" - :"=r" (loops) - :"0" (loops)); + " .set noreorder \n" + " .align 3 \n" + "1: bnez %0, 1b \n" + " dsubu %0, 1 \n" + " .set reorder \n" + : "=r" (loops) + : "0" (loops)); } diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h index a1eab136ff6c..4035ec79ecd4 100644 --- a/include/asm-mips/page.h +++ b/include/asm-mips/page.h @@ -139,9 +139,11 @@ typedef struct { unsigned long pgprot; } pgprot_t; #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) +#ifndef CONFIG_SPARSEMEM #ifndef CONFIG_NEED_MULTIPLE_NODES #define pfn_valid(pfn) ((pfn) < max_mapnr) #endif +#endif #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) diff --git a/include/asm-mips/pgtable-32.h b/include/asm-mips/pgtable-32.h index 4d6bc45df594..087c20769256 100644 --- a/include/asm-mips/pgtable-32.h +++ b/include/asm-mips/pgtable-32.h @@ -177,48 +177,67 @@ pfn_pte(unsigned long pfn, pgprot_t prot) ((swp_entry_t) { ((type) << 10) | ((offset) << 15) }) /* - * Bits 0, 1, 2, 9 and 10 are taken, split up the 27 bits of offset - * into this range: + * Bits 0, 4, 8, and 9 are taken, split up 28 bits of offset into this range: */ -#define PTE_FILE_MAX_BITS 27 +#define PTE_FILE_MAX_BITS 28 -#define pte_to_pgoff(_pte) \ - ((((_pte).pte >> 3) & 0x3f ) + (((_pte).pte >> 11) << 8 )) +#define pte_to_pgoff(_pte) ((((_pte).pte >> 1 ) & 0x07) | \ + (((_pte).pte >> 2 ) & 0x38) | \ + (((_pte).pte >> 10) << 6 )) -#define pgoff_to_pte(off) \ - ((pte_t) { (((off) & 0x3f) << 3) + (((off) >> 8) << 11) + _PAGE_FILE }) +#define pgoff_to_pte(off) ((pte_t) { (((off) & 0x07) << 1 ) | \ + (((off) & 0x38) << 2 ) | \ + (((off) >> 6 ) << 10) | \ + _PAGE_FILE }) #else /* Swap entries must have VALID and GLOBAL bits cleared. */ +#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32) +#define __swp_type(x) (((x).val >> 2) & 0x1f) +#define __swp_offset(x) ((x).val >> 7) +#define __swp_entry(type,offset) \ + ((swp_entry_t) { ((type) << 2) | ((offset) << 7) }) +#else #define __swp_type(x) (((x).val >> 8) & 0x1f) -#define __swp_offset(x) ((x).val >> 13) +#define __swp_offset(x) ((x).val >> 13) #define __swp_entry(type,offset) \ - ((swp_entry_t) { ((type) << 8) | ((offset) << 13) }) + ((swp_entry_t) { ((type) << 8) | ((offset) << 13) }) +#endif /* defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32) */ +#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32) /* - * Bits 0, 1, 2, 7 and 8 are taken, split up the 27 bits of offset - * into this range: + * Bits 0 and 1 of pte_high are taken, use the rest for the page offset... */ -#define PTE_FILE_MAX_BITS 27 +#define PTE_FILE_MAX_BITS 30 -#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1) - /* fixme */ -#define pte_to_pgoff(_pte) (((_pte).pte_high >> 6) + ((_pte).pte_high & 0x3f)) -#define pgoff_to_pte(off) \ - ((pte_t){(((off) & 0x3f) + ((off) << 6) + _PAGE_FILE)}) +#define pte_to_pgoff(_pte) ((_pte).pte_high >> 2) +#define pgoff_to_pte(off) ((pte_t) { _PAGE_FILE, (off) << 2 }) #else -#define pte_to_pgoff(_pte) \ - ((((_pte).pte >> 3) & 0x1f ) + (((_pte).pte >> 9) << 6 )) +/* + * Bits 0, 4, 6, and 7 are taken, split up 28 bits of offset into this range: + */ +#define PTE_FILE_MAX_BITS 28 + +#define pte_to_pgoff(_pte) ((((_pte).pte >> 1) & 0x7) | \ + (((_pte).pte >> 2) & 0x8) | \ + (((_pte).pte >> 8) << 4)) -#define pgoff_to_pte(off) \ - ((pte_t) { (((off) & 0x1f) << 3) + (((off) >> 6) << 9) + _PAGE_FILE }) +#define pgoff_to_pte(off) ((pte_t) { (((off) & 0x7) << 1) | \ + (((off) & 0x8) << 2) | \ + (((off) >> 4) << 8) | \ + _PAGE_FILE }) #endif #endif +#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32) +#define __pte_to_swp_entry(pte) ((swp_entry_t) { (pte).pte_high }) +#define __swp_entry_to_pte(x) ((pte_t) { 0, (x).val }) +#else #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) +#endif #endif /* _ASM_PGTABLE_32_H */ diff --git a/include/asm-mips/pgtable-64.h b/include/asm-mips/pgtable-64.h index 82166b254b27..2faf5c9ff127 100644 --- a/include/asm-mips/pgtable-64.h +++ b/include/asm-mips/pgtable-64.h @@ -224,15 +224,12 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) /* - * Bits 0, 1, 2, 7 and 8 are taken, split up the 32 bits of offset - * into this range: + * Bits 0, 4, 6, and 7 are taken. Let's leave bits 1, 2, 3, and 5 alone to + * make things easier, and only use the upper 56 bits for the page offset... */ -#define PTE_FILE_MAX_BITS 32 +#define PTE_FILE_MAX_BITS 56 -#define pte_to_pgoff(_pte) \ - ((((_pte).pte >> 3) & 0x1f ) + (((_pte).pte >> 9) << 6 )) - -#define pgoff_to_pte(off) \ - ((pte_t) { (((off) & 0x1f) << 3) + (((off) >> 6) << 9) + _PAGE_FILE }) +#define pte_to_pgoff(_pte) ((_pte).pte >> 8) +#define pgoff_to_pte(off) ((pte_t) { ((off) << 8) | _PAGE_FILE }) #endif /* _ASM_PGTABLE_64_H */ diff --git a/include/asm-mips/pgtable.h b/include/asm-mips/pgtable.h index 174a3cda8c26..d0af2a3b0152 100644 --- a/include/asm-mips/pgtable.h +++ b/include/asm-mips/pgtable.h @@ -70,7 +70,15 @@ extern unsigned long zero_page_mask; #define ZERO_PAGE(vaddr) \ (virt_to_page(empty_zero_page + (((unsigned long)(vaddr)) & zero_page_mask))) -#define __HAVE_ARCH_MULTIPLE_ZERO_PAGE +#define __HAVE_ARCH_MOVE_PTE +#define move_pte(pte, prot, old_addr, new_addr) \ +({ \ + pte_t newpte = (pte); \ + if (pte_present(pte) && pfn_valid(pte_pfn(pte)) && \ + pte_page(pte) == ZERO_PAGE(old_addr)) \ + newpte = mk_pte(ZERO_PAGE(new_addr), (prot)); \ + newpte; \ +}) extern void paging_init(void); @@ -345,8 +353,9 @@ static inline pgprot_t pgprot_noncached(pgprot_t _prot) #if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1) static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { - pte.pte_low &= _PAGE_CHG_MASK; - pte.pte_low |= pgprot_val(newprot); + pte.pte_low &= _PAGE_CHG_MASK; + pte.pte_high &= ~0x3f; + pte.pte_low |= pgprot_val(newprot); pte.pte_high |= pgprot_val(newprot) & 0x3f; return pte; } diff --git a/include/asm-mips/smp.h b/include/asm-mips/smp.h index 75c6fe7c2126..e14e4b69de21 100644 --- a/include/asm-mips/smp.h +++ b/include/asm-mips/smp.h @@ -48,7 +48,6 @@ extern struct call_data_struct *call_data; #define SMP_CALL_FUNCTION 0x2 extern cpumask_t phys_cpu_present_map; -extern cpumask_t cpu_online_map; #define cpu_possible_map phys_cpu_present_map extern cpumask_t cpu_callout_map; @@ -86,9 +85,9 @@ extern void prom_init_secondary(void); extern void plat_smp_setup(void); /* - * Called after init_IRQ but before __cpu_up. + * Called in smp_prepare_cpus. */ -extern void prom_prepare_cpus(unsigned int max_cpus); +extern void plat_prepare_cpus(unsigned int max_cpus); /* * Last chance for the board code to finish SMP initialization before diff --git a/include/asm-mips/sparsemem.h b/include/asm-mips/sparsemem.h new file mode 100644 index 000000000000..795ac6c23203 --- /dev/null +++ b/include/asm-mips/sparsemem.h @@ -0,0 +1,14 @@ +#ifndef _MIPS_SPARSEMEM_H +#define _MIPS_SPARSEMEM_H +#ifdef CONFIG_SPARSEMEM + +/* + * SECTION_SIZE_BITS 2^N: how big each section will be + * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space + */ +#define SECTION_SIZE_BITS 28 +#define MAX_PHYSMEM_BITS 35 + +#endif /* CONFIG_SPARSEMEM */ +#endif /* _MIPS_SPARSEMEM_H */ + diff --git a/include/asm-s390/futex.h b/include/asm-s390/futex.h index 40c25e166a9b..1802775568b9 100644 --- a/include/asm-s390/futex.h +++ b/include/asm-s390/futex.h @@ -11,23 +11,24 @@ #define __futex_atomic_fixup \ ".section __ex_table,\"a\"\n" \ " .align 4\n" \ - " .long 0b,2b,1b,2b\n" \ + " .long 0b,4b,2b,4b,3b,4b\n" \ ".previous" #else /* __s390x__ */ #define __futex_atomic_fixup \ ".section __ex_table,\"a\"\n" \ " .align 8\n" \ - " .quad 0b,2b,1b,2b\n" \ + " .quad 0b,4b,2b,4b,3b,4b\n" \ ".previous" #endif /* __s390x__ */ #define __futex_atomic_op(insn, ret, oldval, newval, uaddr, oparg) \ - asm volatile(" l %1,0(%6)\n" \ - "0: " insn \ - " cs %1,%2,0(%6)\n" \ - "1: jl 0b\n" \ + asm volatile(" sacf 256\n" \ + "0: l %1,0(%6)\n" \ + "1: " insn \ + "2: cs %1,%2,0(%6)\n" \ + "3: jl 1b\n" \ " lhi %0,0\n" \ - "2:\n" \ + "4: sacf 0\n" \ __futex_atomic_fixup \ : "=d" (ret), "=&d" (oldval), "=&d" (newval), \ "=m" (*uaddr) \ diff --git a/include/asm-s390/lowcore.h b/include/asm-s390/lowcore.h index db0606c1abd4..bea727904287 100644 --- a/include/asm-s390/lowcore.h +++ b/include/asm-s390/lowcore.h @@ -98,8 +98,8 @@ #define __LC_KERNEL_ASCE 0xD58 #define __LC_USER_ASCE 0xD60 #define __LC_PANIC_STACK 0xD68 -#define __LC_CPUID 0xD90 -#define __LC_CPUADDR 0xD98 +#define __LC_CPUID 0xD80 +#define __LC_CPUADDR 0xD88 #define __LC_IPLDEV 0xDB8 #define __LC_JIFFY_TIMER 0xDC0 #define __LC_CURRENT 0xDD8 diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index c44e7466534e..cd464f469a2c 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h @@ -689,6 +689,23 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *p #define pte_clear(mm,addr,ptep) \ set_pte_at((mm), (addr), (ptep), __pte(0UL)) +#ifdef DCACHE_ALIASING_POSSIBLE +#define __HAVE_ARCH_MOVE_PTE +#define move_pte(pte, prot, old_addr, new_addr) \ +({ \ + pte_t newpte = (pte); \ + if (tlb_type != hypervisor && pte_present(pte)) { \ + unsigned long this_pfn = pte_pfn(pte); \ + \ + if (pfn_valid(this_pfn) && \ + (((old_addr) ^ (new_addr)) & (1 << 13))) \ + flush_dcache_page_all(current->mm, \ + pfn_to_page(this_pfn)); \ + } \ + newpte; \ +}) +#endif + extern pgd_t swapper_pg_dir[2048]; extern pmd_t swapper_low_pmd_dir[2048]; diff --git a/include/asm-um/irqflags.h b/include/asm-um/irqflags.h new file mode 100644 index 000000000000..659b9abdfdba --- /dev/null +++ b/include/asm-um/irqflags.h @@ -0,0 +1,6 @@ +#ifndef __UM_IRQFLAGS_H +#define __UM_IRQFLAGS_H + +/* Empty for now */ + +#endif diff --git a/include/asm-um/uaccess.h b/include/asm-um/uaccess.h index bea5a015f667..16c734af9193 100644 --- a/include/asm-um/uaccess.h +++ b/include/asm-um/uaccess.h @@ -41,11 +41,11 @@ #define __get_user(x, ptr) \ ({ \ - const __typeof__(ptr) __private_ptr = ptr; \ + const __typeof__(*(ptr)) __user *__private_ptr = (ptr); \ __typeof__(x) __private_val; \ int __private_ret = -EFAULT; \ (x) = (__typeof__(*(__private_ptr)))0; \ - if (__copy_from_user((void *) &__private_val, (__private_ptr), \ + if (__copy_from_user((__force void *)&__private_val, (__private_ptr),\ sizeof(*(__private_ptr))) == 0) { \ (x) = (__typeof__(*(__private_ptr))) __private_val; \ __private_ret = 0; \ @@ -62,7 +62,7 @@ #define __put_user(x, ptr) \ ({ \ - __typeof__(ptr) __private_ptr = ptr; \ + __typeof__(*(ptr)) __user *__private_ptr = ptr; \ __typeof__(*(__private_ptr)) __private_val; \ int __private_ret = -EFAULT; \ __private_val = (__typeof__(*(__private_ptr))) (x); \ diff --git a/include/linux/elevator.h b/include/linux/elevator.h index ad133fcfb239..1713ace808bf 100644 --- a/include/linux/elevator.h +++ b/include/linux/elevator.h @@ -21,7 +21,7 @@ typedef void (elevator_put_req_fn) (request_queue_t *, struct request *); typedef void (elevator_activate_req_fn) (request_queue_t *, struct request *); typedef void (elevator_deactivate_req_fn) (request_queue_t *, struct request *); -typedef int (elevator_init_fn) (request_queue_t *, elevator_t *); +typedef void *(elevator_init_fn) (request_queue_t *, elevator_t *); typedef void (elevator_exit_fn) (elevator_t *); struct elevator_ops diff --git a/include/linux/i2o.h b/include/linux/i2o.h index dd7d627bf66f..c115e9e840b4 100644 --- a/include/linux/i2o.h +++ b/include/linux/i2o.h @@ -1114,8 +1114,11 @@ static inline struct i2o_message *i2o_msg_get(struct i2o_controller *c) mmsg->mfa = readl(c->in_port); if (unlikely(mmsg->mfa >= c->in_queue.len)) { + u32 mfa = mmsg->mfa; + mempool_free(mmsg, c->in_msg.mempool); - if(mmsg->mfa == I2O_QUEUE_EMPTY) + + if (mfa == I2O_QUEUE_EMPTY) return ERR_PTR(-EBUSY); return ERR_PTR(-EFAULT); } diff --git a/include/linux/m48t86.h b/include/linux/m48t86.h index 9065199319d0..915d6b4f0f89 100644 --- a/include/linux/m48t86.h +++ b/include/linux/m48t86.h @@ -11,6 +11,6 @@ struct m48t86_ops { - void (*writeb)(unsigned char value, unsigned long addr); - unsigned char (*readb)(unsigned long addr); + void (*writebyte)(unsigned char value, unsigned long addr); + unsigned char (*readbyte)(unsigned long addr); }; diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h index 6a7621b2b12b..f5fdca1d67e6 100644 --- a/include/linux/mempolicy.h +++ b/include/linux/mempolicy.h @@ -36,6 +36,7 @@ #include <linux/nodemask.h> struct vm_area_struct; +struct mm_struct; #ifdef CONFIG_NUMA diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 36740354d4db..2d8337150493 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -15,6 +15,7 @@ #include <linux/seqlock.h> #include <linux/nodemask.h> #include <asm/atomic.h> +#include <asm/page.h> /* Free memory management - zoned buddy allocator. */ #ifndef CONFIG_FORCE_MAX_ZONEORDER diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h index 4877e35ae202..936ef82ed76a 100644 --- a/include/linux/pci-acpi.h +++ b/include/linux/pci-acpi.h @@ -50,7 +50,7 @@ extern acpi_status pci_osc_control_set(acpi_handle handle, u32 flags); extern acpi_status pci_osc_support_set(u32 flags); #else -#if !defined(acpi_status) +#if !defined(AE_ERROR) typedef u32 acpi_status; #define AE_ERROR (acpi_status) (0x0001) #endif diff --git a/mm/slab.c b/mm/slab.c index d31a06bfbea5..f1b644eb39d8 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -207,11 +207,6 @@ typedef unsigned int kmem_bufctl_t; #define BUFCTL_ACTIVE (((kmem_bufctl_t)(~0U))-2) #define SLAB_LIMIT (((kmem_bufctl_t)(~0U))-3) -/* Max number of objs-per-slab for caches which use off-slab slabs. - * Needed to avoid a possible looping condition in cache_grow(). - */ -static unsigned long offslab_limit; - /* * struct slab * @@ -1356,12 +1351,6 @@ void __init kmem_cache_init(void) NULL, NULL); } - /* Inc off-slab bufctl limit until the ceiling is hit. */ - if (!(OFF_SLAB(sizes->cs_cachep))) { - offslab_limit = sizes->cs_size - sizeof(struct slab); - offslab_limit /= sizeof(kmem_bufctl_t); - } - sizes->cs_dmacachep = kmem_cache_create(names->name_dma, sizes->cs_size, ARCH_KMALLOC_MINALIGN, @@ -1780,6 +1769,7 @@ static void set_up_list3s(struct kmem_cache *cachep, int index) static size_t calculate_slab_order(struct kmem_cache *cachep, size_t size, size_t align, unsigned long flags) { + unsigned long offslab_limit; size_t left_over = 0; int gfporder; @@ -1791,9 +1781,18 @@ static size_t calculate_slab_order(struct kmem_cache *cachep, if (!num) continue; - /* More than offslab_limit objects will cause problems */ - if ((flags & CFLGS_OFF_SLAB) && num > offslab_limit) - break; + if (flags & CFLGS_OFF_SLAB) { + /* + * Max number of objs-per-slab for caches which + * use off-slab slabs. Needed to avoid a possible + * looping condition in cache_grow(). + */ + offslab_limit = size - sizeof(struct slab); + offslab_limit /= sizeof(kmem_bufctl_t); + + if (num > offslab_limit) + break; + } /* Found something acceptable - save it away */ cachep->num = num; diff --git a/mm/vmscan.c b/mm/vmscan.c index 4649a63a8cb6..440a733fe2e9 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1061,7 +1061,7 @@ static unsigned long balance_pgdat(pg_data_t *pgdat, unsigned long nr_pages, loop_again: total_scanned = 0; nr_reclaimed = 0; - sc.may_writepage = !laptop_mode, + sc.may_writepage = !laptop_mode; sc.nr_mapped = read_page_state(nr_mapped); inc_page_state(pageoutrun); diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index ad1c7af65ec8..f5d47bf4f967 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -300,25 +300,20 @@ int br_add_bridge(const char *name) rtnl_lock(); if (strchr(dev->name, '%')) { ret = dev_alloc_name(dev, dev->name); - if (ret < 0) - goto err1; + if (ret < 0) { + free_netdev(dev); + goto out; + } } ret = register_netdevice(dev); if (ret) - goto err2; + goto out; ret = br_sysfs_addbr(dev); if (ret) - goto err3; - rtnl_unlock(); - return 0; - - err3: - unregister_netdev(dev); - err2: - free_netdev(dev); - err1: + unregister_netdevice(dev); + out: rtnl_unlock(); return ret; } diff --git a/net/ethernet/Makefile b/net/ethernet/Makefile index 69b74a9a0fc3..7cef1d8ace27 100644 --- a/net/ethernet/Makefile +++ b/net/ethernet/Makefile @@ -3,6 +3,5 @@ # obj-y += eth.o -obj-$(CONFIG_SYSCTL) += sysctl_net_ether.o obj-$(subst m,y,$(CONFIG_IPX)) += pe2.o obj-$(subst m,y,$(CONFIG_ATALK)) += pe2.o diff --git a/net/ethernet/sysctl_net_ether.c b/net/ethernet/sysctl_net_ether.c deleted file mode 100644 index 66b39fc342d2..000000000000 --- a/net/ethernet/sysctl_net_ether.c +++ /dev/null @@ -1,14 +0,0 @@ -/* -*- linux-c -*- - * sysctl_net_ether.c: sysctl interface to net Ethernet subsystem. - * - * Begun April 1, 1996, Mike Shaver. - * Added /proc/sys/net/ether directory entry (empty =) ). [MS] - */ - -#include <linux/mm.h> -#include <linux/sysctl.h> -#include <linux/if_ether.h> - -ctl_table ether_table[] = { - {0} -}; diff --git a/net/ipv4/tcp_highspeed.c b/net/ipv4/tcp_highspeed.c index b72fa55dfb84..ba7c63ca5bb1 100644 --- a/net/ipv4/tcp_highspeed.c +++ b/net/ipv4/tcp_highspeed.c @@ -135,7 +135,8 @@ static void hstcp_cong_avoid(struct sock *sk, u32 adk, u32 rtt, /* Do additive increase */ if (tp->snd_cwnd < tp->snd_cwnd_clamp) { - tp->snd_cwnd_cnt += ca->ai; + /* cwnd = cwnd + a(w) / cwnd */ + tp->snd_cwnd_cnt += ca->ai + 1; if (tp->snd_cwnd_cnt >= tp->snd_cwnd) { tp->snd_cwnd_cnt -= tp->snd_cwnd; tp->snd_cwnd++; diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 743016baa048..f33c9dddaa12 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -642,7 +642,7 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss * eventually). The difference is that pulled data not copied, but * immediately discarded. */ -static unsigned char *__pskb_trim_head(struct sk_buff *skb, int len) +static void __pskb_trim_head(struct sk_buff *skb, int len) { int i, k, eat; @@ -667,7 +667,6 @@ static unsigned char *__pskb_trim_head(struct sk_buff *skb, int len) skb->tail = skb->data; skb->data_len -= len; skb->len = skb->data_len; - return skb->tail; } int tcp_trim_head(struct sock *sk, struct sk_buff *skb, u32 len) @@ -676,12 +675,11 @@ int tcp_trim_head(struct sock *sk, struct sk_buff *skb, u32 len) pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) return -ENOMEM; - if (len <= skb_headlen(skb)) { + /* If len == headlen, we avoid __skb_pull to preserve alignment. */ + if (unlikely(len < skb_headlen(skb))) __skb_pull(skb, len); - } else { - if (__pskb_trim_head(skb, len-skb_headlen(skb)) == NULL) - return -ENOMEM; - } + else + __pskb_trim_head(skb, len - skb_headlen(skb)); TCP_SKB_CB(skb)->seq += len; skb->ip_summed = CHECKSUM_HW; diff --git a/net/irda/irlap.c b/net/irda/irlap.c index 7029618f5719..a16528657b4c 100644 --- a/net/irda/irlap.c +++ b/net/irda/irlap.c @@ -884,7 +884,8 @@ static void irlap_change_speed(struct irlap_cb *self, __u32 speed, int now) if (now) { /* Send down empty frame to trigger speed change */ skb = dev_alloc_skb(0); - irlap_queue_xmit(self, skb); + if (skb) + irlap_queue_xmit(self, skb); } } diff --git a/net/sysctl_net.c b/net/sysctl_net.c index 55538f6b60ff..58a1b6b42ddd 100644 --- a/net/sysctl_net.c +++ b/net/sysctl_net.c @@ -37,14 +37,6 @@ struct ctl_table net_table[] = { .mode = 0555, .child = core_table, }, -#ifdef CONFIG_NET - { - .ctl_name = NET_ETHER, - .procname = "ethernet", - .mode = 0555, - .child = ether_table, - }, -#endif #ifdef CONFIG_INET { .ctl_name = NET_IPV4, diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 21dad415b896..90b4cdc0c948 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -4422,6 +4422,7 @@ void selinux_complete_init(void) /* Set up any superblocks initialized prior to the policy load. */ printk(KERN_INFO "SELinux: Setting up existing superblocks.\n"); + spin_lock(&sb_lock); spin_lock(&sb_security_lock); next_sb: if (!list_empty(&superblock_security_head)) { @@ -4430,19 +4431,20 @@ next_sb: struct superblock_security_struct, list); struct super_block *sb = sbsec->sb; - spin_lock(&sb_lock); sb->s_count++; - spin_unlock(&sb_lock); spin_unlock(&sb_security_lock); + spin_unlock(&sb_lock); down_read(&sb->s_umount); if (sb->s_root) superblock_doinit(sb, NULL); drop_super(sb); + spin_lock(&sb_lock); spin_lock(&sb_security_lock); list_del_init(&sbsec->list); goto next_sb; } spin_unlock(&sb_security_lock); + spin_unlock(&sb_lock); } /* SELinux requires early initialization in order to label |