From c41045a43a08f898ef5490036f761c87a43dcddc Mon Sep 17 00:00:00 2001 From: Egry Gabor <gaboregry@t-online.hu> Date: Sun, 4 Jun 2006 21:22:11 +0100 Subject: [ARM] Trivial typo fixes Trivial typo fixes in Kconfig files (ARM). Signed-off-by: Egry Gabor <gaboregry@t-online.hu> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> --- arch/arm/Kconfig.debug | 2 +- arch/arm/mach-ixp4xx/Kconfig | 2 +- arch/arm/mach-s3c2410/Kconfig | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 5d3acff8c59..d22f38b957d 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-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig index 2a39f9e481a..3b23f43cb16 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-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig index ce7d8100069..970f98dadff 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 -- cgit v1.2.3 From ae5de0ff0bc24664a053109c6caa782ba2ad7c53 Mon Sep 17 00:00:00 2001 From: "David S. Miller" <davem@sunset.davemloft.net> Date: Sun, 4 Jun 2006 21:32:01 -0700 Subject: [SPARC64]: Fix missing fold at end of checksums. Both csum_partial() and the csum_partial_copy*() family of routines forget to do a final fold on the computed checksum value on sparc64. So do the standard Sparc "add + set condition codes, add carry" sequence, then make sure the high 32-bits of the return value are clear. Based upon some excellent detective work and debugging done by Richard Braun and Samuel Thibault. Signed-off-by: David S. Miller <davem@davemloft.net> --- arch/sparc64/lib/checksum.S | 5 +++-- arch/sparc64/lib/csum_copy.S | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/sparc64/lib/checksum.S b/arch/sparc64/lib/checksum.S index ba9cd3ccc2b..1d230f693dc 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 71af4883906..e566c770a0f 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 -- cgit v1.2.3 From e853534e6b94f87e48f29e1701c3f6f8a63669c5 Mon Sep 17 00:00:00 2001 From: Horst Schirmeier <horst@schirmeier.com> Date: Mon, 5 Jun 2006 10:45:30 +0100 Subject: [SERIAL] typo: buad -> baud Replacing mistyped "buad" with "baud" where applicable. Signed-off-by: Horst Schirmeier <horst@schirmeier.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> --- arch/mips/ddb5xxx/ddb5476/dbg_io.c | 2 +- arch/mips/ddb5xxx/ddb5477/kgdb_io.c | 2 +- arch/mips/gt64120/ev64120/serialGT.c | 2 +- arch/mips/gt64120/momenco_ocelot/dbg_io.c | 2 +- arch/mips/ite-boards/generic/dbg_io.c | 2 +- arch/mips/momentum/jaguar_atx/dbg_io.c | 2 +- arch/mips/momentum/ocelot_c/dbg_io.c | 2 +- arch/mips/momentum/ocelot_g/dbg_io.c | 2 +- 8 files changed, 8 insertions(+), 8 deletions(-) (limited to 'arch') diff --git a/arch/mips/ddb5xxx/ddb5476/dbg_io.c b/arch/mips/ddb5xxx/ddb5476/dbg_io.c index 85e9e501367..f2296a99995 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 1d18d590495..385bbdb1017 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 16e34a546e5..8f0d835491f 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 8720bccfdea..f0a6a38fcf4 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 c4f8530fd07..6a7ccaf9350 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/momentum/jaguar_atx/dbg_io.c b/arch/mips/momentum/jaguar_atx/dbg_io.c index 542eac82b63..d7dea0a136a 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 8720bccfdea..f0a6a38fcf4 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 8720bccfdea..f0a6a38fcf4 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; -- cgit v1.2.3 From a7d14f875f03cb78992da8387be81a4c9197f101 Mon Sep 17 00:00:00 2001 From: Steve Yang <steve.yang@windriver.com> Date: Mon, 5 Jun 2006 19:47:17 +0100 Subject: [ARM] 3543/1: [Fwd: PXA270 bootparams address not set] Patch from Steve Yang MACHINE_START struct doesn't have any bootargs location for the mainstone. Result is no kernel command args get passed; no serial driver is selected for console and results in a silent boot failure. Signed-off-by: Steve Yang <steve.yang@windriver.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> --- arch/arm/mach-pxa/mainstone.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c index 02e188d98e7..b307f11951d 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, -- cgit v1.2.3 From c7d2d28b9851d0ffc9924b0e36bac806d18ebf25 Mon Sep 17 00:00:00 2001 From: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Date: Sun, 4 Jun 2006 02:51:34 -0700 Subject: [PATCH] alpha: SMP IRQ routing fix From: Ivan Kokshaysky <ink@jurassic.park.msu.ru> After removal of fixup_cpu_present_map() function Alpha ended up with an empty cpu_present_map, so secondary CPUs on SMP systems are not being started. Worse, on some platforms we route interrupts to secondary CPUs using cpu_possible_map which is still populated properly. As a result, these interrupts go nowhere so the machines like DP264 aren't able to boot even with a primary CPU. Fixed basically by s/cpu_present_mask/cpu_present_map/. Thanks to Ernst Herzberg for reporting the bug and testing the fix. Cc: Ernst Herzberg <list-lkml@net4u.de> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- arch/alpha/kernel/alpha_ksyms.c | 1 - arch/alpha/kernel/process.c | 6 +++--- arch/alpha/kernel/smp.c | 14 ++++---------- arch/alpha/kernel/sys_titan.c | 2 +- 4 files changed, 8 insertions(+), 15 deletions(-) (limited to 'arch') diff --git a/arch/alpha/kernel/alpha_ksyms.c b/arch/alpha/kernel/alpha_ksyms.c index c645c5e1478..2b245ad731e 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 9924fd07743..c760a831fd1 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 185255416e8..4dc273e537f 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 5f84417eeb7..2551fb49ae0 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; -- cgit v1.2.3 From 78b86e579f11e7d7bd45acd90b6a87cd4b7c5a54 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Date: Sun, 4 Jun 2006 02:51:38 -0700 Subject: [PATCH] pmf_register_irq_client() gives sleep with locks held warning From: Benjamin Herrenschmidt <benh@kernel.crashing.org> This fixes request_irq() potentially called from atomic context. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- arch/powerpc/platforms/powermac/pfunc_core.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/platforms/powermac/pfunc_core.c b/arch/powerpc/platforms/powermac/pfunc_core.c index 4baa75b1d36..f08173b0f06 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); -- cgit v1.2.3 From 5cb38bc47bf370570fce81f89e05e5250169060f Mon Sep 17 00:00:00 2001 From: Jeff Dike <jdike@addtoit.com> Date: Sun, 4 Jun 2006 02:51:46 -0700 Subject: [PATCH] uml: fix wall_to_monotonic initialization From: Jeff Dike <jdike@addtoit.com> Initialize wall_to_monotonic correctly. This fixes a problem where sleeps lasted about one secone less than they should. This also called for a bit of code restructuring, following a patch which Blaisorblade had been keeping. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- arch/um/include/kern_util.h | 13 ++----------- arch/um/kernel/time_kern.c | 10 ++++++++++ arch/um/os-Linux/time.c | 10 +--------- 3 files changed, 13 insertions(+), 20 deletions(-) (limited to 'arch') diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h index efa3d33c0be..310980b3217 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 528cf623f8b..86f51d04c98 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/time.c b/arch/um/os-Linux/time.c index 6f7626775ac..280c4fb9b58 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) -- cgit v1.2.3 From f218312582350900443125137e6c5fc484dc1de1 Mon Sep 17 00:00:00 2001 From: Jeff Dike <jdike@addtoit.com> Date: Sun, 4 Jun 2006 02:51:47 -0700 Subject: [PATCH] uml: fix a typo in do_uml_initcalls From: Jeff Dike <jdike@addtoit.com> We had a spurious semicolon somehow. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- arch/um/os-Linux/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c index 3a0ac38e978..90912aaca7a 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++; } -- cgit v1.2.3 From ca34fb1a8786af43457ec4f1bfc101a66d1160e0 Mon Sep 17 00:00:00 2001 From: Al Viro <viro@zeniv.linux.org.uk> Date: Sun, 4 Jun 2006 02:51:47 -0700 Subject: [PATCH] uml: __user annotation in arch_prctl From: Al Viro <viro@zeniv.linux.org.uk> fix uml/amd64 prctl() put_user() there should go to (long __user *)addr, not &addr Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- arch/um/sys-x86_64/syscalls.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c index 6acee5c4ada..6fce9f45dfd 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; -- cgit v1.2.3 From b8719c31a30a4a1054d99fbd51a88c2f6444392a Mon Sep 17 00:00:00 2001 From: Al Viro <viro@zeniv.linux.org.uk> Date: Sun, 4 Jun 2006 02:51:48 -0700 Subject: [PATCH] uml: more __user annotations From: Al Viro <viro@zeniv.linux.org.uk> uml __user annotations Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- arch/um/sys-i386/syscalls.c | 9 +++++---- arch/um/sys-x86_64/signal.c | 24 ++++++++++++++---------- 2 files changed, 19 insertions(+), 14 deletions(-) (limited to 'arch') diff --git a/arch/um/sys-i386/syscalls.c b/arch/um/sys-i386/syscalls.c index 749dd1bfe60..710d5fb807e 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 a4c46a8af00..9edf114faf7 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; -- cgit v1.2.3 From fec468b0c9e0a75b89514408e3b35b1576b57071 Mon Sep 17 00:00:00 2001 From: Jeff Dike <jdike@addtoit.com> Date: Sun, 4 Jun 2006 02:51:49 -0700 Subject: [PATCH] uml: add -ffreestanding to CFLAGS From: Jeff Dike <jdike@addtoit.com> This fixes the undefined reference to strcpy seen when building modules on i386. Tracked down by Al Viro. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- arch/um/Makefile-i386 | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386 index 7a0e04e34bf..b65ca115ef7 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) -- cgit v1.2.3 From 320e6aba26892b016293190e079f15e83a5c28b9 Mon Sep 17 00:00:00 2001 From: Ralf Baechle <ralf@linux-mips.org> Date: Mon, 22 May 2006 14:24:04 +0100 Subject: [MIPS] Fix SMP now that fixup_cpu_present_map is gone. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/smp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index d42f358754a..298f82fe844 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 " -- cgit v1.2.3 From f3bf07b9a367c342bcbc9f47d525d3cf5e8b4f3b Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Date: Tue, 23 May 2006 00:45:07 +0900 Subject: [MIPS] Ignore unresolved weak symbols in modules. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/module.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch') diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c index e54a7f442f8..d7bf0215bc1 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; -- cgit v1.2.3 From 1acf1ca7e906cf7453d76d76a6c953996295c220 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Date: Tue, 23 May 2006 16:42:38 +0900 Subject: [MIPS] Fix modpost warning: Rename op_model_xxx to op_model_xxx_ops. The modpost uses a whitelist for commonly used suffix on checking the section mismatch. Adding "_ops" suffix to op_modex_xxx get rid of this modpost warning. WARNING: arch/mips/oprofile/oprofile.o - Section mismatch: reference to .init.text: from .data after 'op_model_mipsxx' (at offset 0x528) Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/oprofile/common.c | 8 ++++---- arch/mips/oprofile/op_model_mipsxx.c | 32 ++++++++++++++++---------------- arch/mips/oprofile/op_model_rm9000.c | 2 +- 3 files changed, 21 insertions(+), 21 deletions(-) (limited to 'arch') diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c index 91b799d2cd8..c31e4cff64e 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 e7ce9239130..f26a00e1320 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 9b75e41c78e..b7063fefa65 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, -- cgit v1.2.3 From cac4bcbce0e800f2219a27b66aaeb4a33f2e3dbc Mon Sep 17 00:00:00 2001 From: Ralf Baechle <ralf@linux-mips.org> Date: Wed, 24 May 2006 16:51:02 +0100 Subject: [MIPS] Print more information if we're struck by a machine check exception. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/traps.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 35cb08da382..a7564b08eb4 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) -- cgit v1.2.3 From 9370b35175ca43fad7d24bc7b391473f3becbee8 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov <sshtylyov@ru.mvista.com> Date: Fri, 26 May 2006 19:44:54 +0400 Subject: [MIPS] Save write-only Config.OD from being clobbered Save the Config.OD bit from being clobbered by coherency_setup(). This bit, when set, fixes various errata in the early steppings of Au1x00 SOCs. Unfortunately, the bit was write-only on the most early of them. In addition, also restore the bit after a wakeup from sleep. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/au1000/common/sleeper.S | 5 +++++ arch/mips/mm/c-r4k.c | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 39 insertions(+) (limited to 'arch') diff --git a/arch/mips/au1000/common/sleeper.S b/arch/mips/au1000/common/sleeper.S index 44dac3b0df3..683d9da84b6 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/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 6b354176960..4a43924cd4f 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; } } -- cgit v1.2.3 From fef6d6a73a3985e4fdb5ab1910909c0c73539829 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov <sshtylyov@ru.mvista.com> Date: Sat, 27 May 2006 23:36:41 +0400 Subject: [MIPS] Au1xx0: fix prom_getenv() to handle YAMON style environment Alchemy boards use YAMON which passes the environment variables as the tuples of strings (the name followed by the value) unlike PMON which passes "name=<val>" strings. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/au1000/common/prom.c | 24 +++++++++--------------- 1 file changed, 9 insertions(+), 15 deletions(-) (limited to 'arch') diff --git a/arch/mips/au1000/common/prom.c b/arch/mips/au1000/common/prom.c index 9c171afd9a5..ae7d8c57bf3 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) -- cgit v1.2.3 From 7155262e180d3b50fdea0f58f3329d9ae81ef80b Mon Sep 17 00:00:00 2001 From: Thiemo Seufer <ths@networkno.de> Date: Sun, 28 May 2006 15:02:53 +0100 Subject: [MIPS] open() forces O_LARGEFILE for o32 on 64bit kernels open() always sets the O_LARGEFILE flag for the o32 ABI implementation of a 64bit kernel. The appended patch fixes it. Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/scall64-o32.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index b53a9207f53..8efb23a8413 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 -- cgit v1.2.3 From aa32374aaa2e516a9b0719477efae0782a62a79e Mon Sep 17 00:00:00 2001 From: Ralf Baechle <ralf@linux-mips.org> Date: Mon, 29 May 2006 00:02:12 +0100 Subject: [MIPS] SB1: Only pass1 FPUs are broken beyond recovery. The wrong revision number in the check was forcing a fallback to FPU emulation for all SB1 cores in 2.6. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/cpu-probe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index bef3e2dc7c5..8c2c359a05f 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: -- cgit v1.2.3 From b6d7c7a91138c883f890c204cd5300172145b0b3 Mon Sep 17 00:00:00 2001 From: Ralf Baechle <ralf@linux-mips.org> Date: Tue, 30 May 2006 02:13:16 +0100 Subject: [MIPS] IP32: Fix warnings. The expressions are volatile; no need for temporary variables. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/sgi-ip32/ip32-irq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c index de01c9815bd..8ba08047d16 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 -- cgit v1.2.3 From 460c0422c3861ab63a14c2be600a96a9e68b89f2 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Date: Thu, 1 Jun 2006 01:00:39 +0900 Subject: [MIPS] Fix sparse warnings about too big constants. Fix following warnings: linux/arch/mips/kernel/setup.c:249:12: warning: constant 0xffffffff00000000 is so big it is unsigned long linux/arch/mips/kernel/cpu-bugs64.c:209:10: warning: constant 0xffffffffffffdb9a is so big it is unsigned long linux/arch/mips/kernel/cpu-bugs64.c:227:10: warning: constant 0xffffffffffffdb9a is so big it is unsigned long linux/arch/mips/kernel/cpu-bugs64.c:283:10: warning: constant 0xffffffffffffdb9a is so big it is unsigned long linux/arch/mips/kernel/cpu-bugs64.c:299:10: warning: constant 0xffffffffffffdb9a is so big it is unsigned long Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/cpu-bugs64.c | 8 ++++---- arch/mips/kernel/setup.c | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c index 47a087b6c11..d268827c62b 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/setup.c b/arch/mips/kernel/setup.c index bcf1b10e518..faeed5f4cf2 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; -- cgit v1.2.3 From ecf52d3c895c8bc069b9ae07c18acf39d846c2ef Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Date: Thu, 1 Jun 2006 01:00:03 +0900 Subject: [MIPS] Fix compiler warnings (field width, unused variable) Fix following warnings: linux/arch/mips/kernel/setup.c:432: warning: field width is not type int (arg 2) linux/arch/mips/kernel/setup.c:432: warning: field width is not type int (arg 4) linux/arch/mips/kernel/syscall.c:279: warning: unused variable `len' linux/arch/mips/kernel/syscall.c:280: warning: unused variable `name' linux/arch/mips/math-emu/dp_fint.c:32: warning: unused variable `xc' linux/arch/mips/math-emu/dp_flong.c:32: warning: unused variable `xc' linux/arch/mips/math-emu/sp_fint.c:32: warning: unused variable `xc' linux/arch/mips/math-emu/sp_flong.c:32: warning: unused variable `xc' (original patch by Atsushi, slight changes to the setup.c part by me.) Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/setup.c | 13 ++++++++----- arch/mips/kernel/syscall.c | 3 +-- arch/mips/math-emu/dp_fint.c | 4 +++- arch/mips/math-emu/dp_flong.c | 4 +++- arch/mips/math-emu/sp_fint.c | 4 +++- arch/mips/math-emu/sp_flong.c | 4 +++- 6 files changed, 21 insertions(+), 11 deletions(-) (limited to 'arch') diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index faeed5f4cf2..a481be04769 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -419,17 +419,20 @@ 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/syscall.c b/arch/mips/kernel/syscall.c index 8f4fdd94dbd..5e8a18a8e2b 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/math-emu/dp_fint.c b/arch/mips/math-emu/dp_fint.c index a1962eb460f..39a71de16f4 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 eae90a866aa..f08f223e488 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 7aac13afb09..e88e125e01c 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 3d6c1d11c17..26d6919a269 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; -- cgit v1.2.3 From b1c231f5a57cb4a417c38a8a946f1e66db3bb9c0 Mon Sep 17 00:00:00 2001 From: Chad Reese <creese@caviumnetworks.com> Date: Tue, 30 May 2006 17:16:49 -0700 Subject: [MIPS] Fix sparsemem support. Move memory_present() in arch/mips/kernel/setup.c. When using sparsemem extreme, this function does an allocate for bootmem. This would always fail since init_bootmem hasn't been called yet. Move memory_present after free_bootmem. This only marks actual memory ranges as present instead of the entire address space. Signed-off-by: Chad Reese <creese@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> --- arch/mips/kernel/setup.c | 3 +-- arch/mips/mm/init.c | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index a481be04769..397a70e651b 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -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. */ diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index c22308b93ff..33f6e1cdfd5 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++; } -- cgit v1.2.3 From d782f33df706f1b8a4496b41fd7d339c6e23aa59 Mon Sep 17 00:00:00 2001 From: Russell King <rmk@dyn-67.arm.linux.org.uk> Date: Thu, 8 Jun 2006 17:59:31 +0100 Subject: [ARM] Fix Neponset IRQ handling While testing the genirq code on ARM, a condition was found whereby the Neponset IRQ handler was being re-entered, causing the system to deadlock. Under the ARM IRQ code, this would not have been a visible problem because the "simple" IRQ handling had no re-entrancy protection. Resolve this by acknowledging the parent interrupt after we mask it when we are going to handle one of our "special" level-based sources (from ethernet or USAR chip.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> --- arch/arm/mach-sa1100/neponset.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c index 9e02bc3712a..af6d2775cf8 100644 --- a/arch/arm/mach-sa1100/neponset.c +++ b/arch/arm/mach-sa1100/neponset.c @@ -59,6 +59,14 @@ neponset_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *reg if (irr & (IRR_ETHERNET | IRR_USAR)) { desc->chip->mask(irq); + /* + * Ack the interrupt now to prevent re-entering + * this neponset handler. Again, this is safe + * since we'll check the IRR register prior to + * leaving. + */ + desc->chip->ack(irq); + if (irr & IRR_ETHERNET) { d = irq_desc + IRQ_NEPONSET_SMC9196; desc_handle_irq(IRQ_NEPONSET_SMC9196, d, regs); -- cgit v1.2.3 From 0c27c5d5b93339df4def7ced77ea5be26df4d84b Mon Sep 17 00:00:00 2001 From: Richard Purdie <rpurdie@rpsys.net> Date: Thu, 8 Jun 2006 22:44:07 +0100 Subject: [ARM] 3547/1: PXA-OHCI: Allow platforms to specify a power budget Patch from Richard Purdie Add a power budget variable to the PXA OHCI platform data and add a default value for the spitz platform(s) which prevents known failures with certain USB devices. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> --- arch/arm/mach-pxa/spitz.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 19b372df544..44bcb8097c7 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -371,6 +371,7 @@ static int spitz_ohci_init(struct device *dev) static struct pxaohci_platform_data spitz_ohci_platform_data = { .port_mode = PMM_NPS_MODE, .init = spitz_ohci_init, + .power_budget = 150, }; -- cgit v1.2.3 From e2f04e18941dbd3826901540a0be03f1728f8822 Mon Sep 17 00:00:00 2001 From: Matt Reimer <mreimer@vpop.net> Date: Thu, 8 Jun 2006 22:46:48 +0100 Subject: [ARM] 3546/1: PATCH: subtle lost interrupts bug on i.MX Patch from Matt Reimer There is a subtle bug in the GPIO interrupt status register handling in arch/arm/mach-imx/irq.c:imx_gpio_ack_irq(). The documentation states that a 1 should be written to the relevant bit to acknowledge a GPIO interrupt, but that is not what the code does. The problem is that the |= writes back 1s for all the *other* interrupts represented in the register, so interrupts could get lost. For example, if interrupts are pending for GPIO B10 and B12, ISR_B would have the value 0x00001400. Then when the interrupt code handles GPIO B10, it eventually calls imx_gpio_ack_irq(IRQ_GPIOB(10)), which effectively does this: ISR_B |= 1 << 10; with the result that (0x00001400 | 0x00000400) is written, clearing the interrupt status bits for *both* GPIO B10 and B12. The fix is to write 1s only for the interrupts we want to clear. The same problem seems to be occurring in the DMA code; this patch does not address those issues. Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Matt Reimer <mreimer@vpop.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> --- arch/arm/mach-imx/irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-imx/irq.c b/arch/arm/mach-imx/irq.c index eeb8a6d4a39..a5de5f1da9f 100644 --- a/arch/arm/mach-imx/irq.c +++ b/arch/arm/mach-imx/irq.c @@ -127,7 +127,7 @@ static void imx_gpio_ack_irq(unsigned int irq) { DEBUG_IRQ("%s: irq %d\n", __FUNCTION__, irq); - ISR(IRQ_TO_REG(irq)) |= 1 << ((irq - IRQ_GPIOA(0)) % 32); + ISR(IRQ_TO_REG(irq)) = 1 << ((irq - IRQ_GPIOA(0)) % 32); } static void -- cgit v1.2.3 From d44647b0a6e48d18a1402dfa9052d85c4fe98341 Mon Sep 17 00:00:00 2001 From: Andy Currid <ACurrid@nvidia.com> Date: Thu, 8 Jun 2006 00:43:38 -0700 Subject: [PATCH] Fix HPET operation on 32-bit NVIDIA platforms From: "Andy Currid" <ACurrid@nvidia.com> This patch fixes a kernel panic during boot that occurs on NVIDIA platforms that have HPET enabled. When HPET is enabled, the standard timer IRQ is routed to IOAPIC pin 2 and is advertised as such in the ACPI APIC table - but an earlier workaround in the kernel was ignoring this override. The fix is to honor timer IRQ overrides from ACPI when HPET is detected on an NVIDIA platform. Signed-off-by: Andy Currid <acurrid@nvidia.com> Cc: "Brown, Len" <len.brown@intel.com> Cc: "Yu, Luming" <luming.yu@intel.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- arch/i386/kernel/acpi/earlyquirk.c | 23 ++++++++++++++++++++--- arch/i386/kernel/setup.c | 11 +++++++---- 2 files changed, 27 insertions(+), 7 deletions(-) (limited to 'arch') diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c index 2e3b643a4dc..1649a175a20 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 846e1639ef7..dd6b0e3386c 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) -- cgit v1.2.3 From a2ef3a50f19f64d350bdc0aa15c31ae4b8973f57 Mon Sep 17 00:00:00 2001 From: Andy Currid <ACurrid@nvidia.com> Date: Thu, 8 Jun 2006 00:43:39 -0700 Subject: [PATCH] Fix HPET operation on 64-bit NVIDIA platforms From: "Andy Currid" <ACurrid@nvidia.com> This patch fixes a kernel panic during boot that occurs on NVIDIA platforms that have HPET enabled. When HPET is enabled, the standard timer IRQ is routed to IOAPIC pin 2 and is advertised as such in the ACPI APIC table - but an earlier workaround in the kernel was ignoring this override. The fix is to honor timer IRQ overrides from ACPI when HPET is detected on an NVIDIA platform. Signed-off-by: Andy Currid <acurrid@nvidia.com> Cc: "Brown, Len" <len.brown@intel.com> Cc: "Yu, Luming" <luming.yu@intel.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- arch/x86_64/kernel/io_apic.c | 30 +++++++++++++++++++++++++----- 1 file changed, 25 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c index 0de3ea93883..9cc7031b715 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; -- cgit v1.2.3 From fd0a0ac1c5393b226640a30bae753983068136b3 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek <buytenh@wantstofly.org> Date: Thu, 8 Jun 2006 00:43:40 -0700 Subject: [PATCH] ep93xx build fix From: Lennert Buytenhek <buytenh@wantstofly.org> The recent renaming of m48t86's ->readb() and ->writeb() platform driver methods (2d7b20c1884777e66009be1a533641c19c4705f6) to ->readbyte() and ->writebyte() to fix the ia64 build broke the build of the cirrus ep93xx ARM platform. This patch fixes it up. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- arch/arm/mach-ep93xx/ts72xx.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c index 9be01b0c3f4..e24566b88a7 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 = { -- cgit v1.2.3 From 7c85d1f9d358b24c5b05c3a2783a78423775a080 Mon Sep 17 00:00:00 2001 From: Paul Mackerras <paulus@samba.org> Date: Fri, 9 Jun 2006 13:02:59 +1000 Subject: powerpc: Fix machine check problem on 32-bit kernels This fixes a bug found by Dave Jones that means that it is possible for userspace to provoke a machine check on 32-bit kernels. This also fixes a couple of other places where I found similar problems by inspection. Signed-off-by: Paul Mackerras <paulus@samba.org> --- arch/powerpc/kernel/signal_32.c | 11 ++++++++++- arch/powerpc/kernel/signal_64.c | 2 ++ 2 files changed, 12 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index 01e3c08cb55..8fdeca2d459 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -803,10 +803,13 @@ 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)) @@ -908,13 +911,14 @@ 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: @@ -959,6 +963,11 @@ 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 27f65b95184..c2db642f4cd 100644 --- a/arch/powerpc/kernel/signal_64.c +++ b/arch/powerpc/kernel/signal_64.c @@ -182,6 +182,8 @@ static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig, err |= __get_user(msr, &sc->gp_regs[PT_MSR]); 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, -- cgit v1.2.3 From 33b7497794424181dca87f18e43ecbc07f86bba5 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Date: Wed, 7 Jun 2006 12:01:32 +1000 Subject: [PATCH] powerpc: Fix call to ibm,client-architecture-support The code in prom_init.c calling the firmware ibm,client-architecture-support method on pSeries has a bug where it fails to properly pass the instance handle of the firmware object when trying to call a method. Result ranges from the call doing nothing to the firmware crashing. (Found by Segher, thanks !) Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org> --- arch/powerpc/kernel/prom_init.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 41e9ab40cd5..f393a386743 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -822,6 +822,7 @@ 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) -- cgit v1.2.3 From 133dda1e4f757e036fa838cba6804d0344931c4a Mon Sep 17 00:00:00 2001 From: Arnd Bergmann <arnd@arndb.de> Date: Wed, 7 Jun 2006 12:04:18 +1000 Subject: [PATCH] powerpc: Fix cell blade detection The IBM Cell blade firmware might confuse the kernel to think it's a pSeries machine. This fixes it for now. With a bit of luck, the firmware will be updated to avoid that in the future but currently that patch is needed. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org> --- arch/powerpc/kernel/prom_init.c | 9 +++++++++ arch/powerpc/platforms/cell/setup.c | 11 +++++------ arch/powerpc/platforms/pseries/setup.c | 8 ++++++++ 3 files changed, 22 insertions(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index f393a386743..f70bd090dac 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -1623,6 +1623,15 @@ 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/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index 6574b22b3cf..fd3e5609e3e 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/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 5f79f01c44f..3ba87835757 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 */ -- cgit v1.2.3 From 5224e6cc3ab5ae03895bbb67f4a26ce72e62ce58 Mon Sep 17 00:00:00 2001 From: "David S. Miller" <davem@sunset.davemloft.net> Date: Tue, 6 Jun 2006 17:37:41 -0700 Subject: [SPARC64]: Dump local cpu registers in sun4v_log_error() This makes the debugging information more usable. Signed-off-by: David S. Miller <davem@davemloft.net> --- arch/sparc64/kernel/traps.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index 2793a5d8238..563db528e03 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; -- cgit v1.2.3 From 46b304934de417a2238d659ef6459a74cb3f5e6b Mon Sep 17 00:00:00 2001 From: "David S. Miller" <davem@sunset.davemloft.net> Date: Sat, 10 Jun 2006 01:06:25 -0700 Subject: [SPARC64]: Avoid JBUS errors on some Niagara systems. Doing PCI config space accesses to non-present PCI slots can result in fatal JBUS errors if the PCI config access hypervisor call is performed on cpus other than the boot cpu. PCI config space accesses to present PCI slots works just fine. Recursively traverse the OBP device tree under the PCI controller node and record all present device IDs into a small hash table. Avoid the hypervisor call for any PCI config space access attempt for a device not recorded in the hash table. Signed-off-by: David S. Miller <davem@davemloft.net> --- arch/sparc64/kernel/pci_sun4v.c | 124 ++++++++++++++++++++++++++++++++++++++-- 1 file changed, 118 insertions(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c index 2b7a1f316a9..0c089520297 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) -- cgit v1.2.3 From 56f1319e877a969b814b3805c77ea9c31d849f54 Mon Sep 17 00:00:00 2001 From: Russell King <rmk@dyn-67.arm.linux.org.uk> Date: Sat, 10 Jun 2006 12:42:12 +0100 Subject: [ARM] Fix Integrator and Versatile interrupt initialisation Both Integrator and Versatile were using set_irq_handler() and enable_irq(), and working around the initialisation of the chained interrupt, instead of the more correct set_irq_chained_handler() function. Fix Integrator and Versatile to use the right function, and remove these work-arounds. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> --- arch/arm/mach-integrator/integrator_cp.c | 5 +---- arch/arm/mach-versatile/core.c | 5 ++--- 2 files changed, 3 insertions(+), 7 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c index a0724f2b24c..9f55f5ae104 100644 --- a/arch/arm/mach-integrator/integrator_cp.c +++ b/arch/arm/mach-integrator/integrator_cp.c @@ -232,8 +232,6 @@ static void __init intcp_init_irq(void) for (i = IRQ_PIC_START; i <= IRQ_PIC_END; i++) { if (i == 11) i = 22; - if (i == IRQ_CP_CPPLDINT) - i++; if (i == 29) break; set_irq_chip(i, &pic_chip); @@ -259,8 +257,7 @@ static void __init intcp_init_irq(void) set_irq_flags(i, IRQF_VALID | IRQF_PROBE); } - set_irq_handler(IRQ_CP_CPPLDINT, sic_handle_irq); - pic_unmask_irq(IRQ_CP_CPPLDINT); + set_irq_chained_handler(IRQ_CP_CPPLDINT, sic_handle_irq); } /* diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index 799697d32de..cebd48a3dae 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -112,10 +112,9 @@ void __init versatile_init_irq(void) { unsigned int i; - vic_init(VA_VIC_BASE, IRQ_VIC_START, ~(1 << 31)); + vic_init(VA_VIC_BASE, IRQ_VIC_START, ~0); - set_irq_handler(IRQ_VICSOURCE31, sic_handle_irq); - enable_irq(IRQ_VICSOURCE31); + set_irq_chained_handler(IRQ_VICSOURCE31, sic_handle_irq); /* Do second interrupt controller */ writel(~0, VA_SIC_BASE + SIC_IRQ_ENABLE_CLEAR); -- cgit v1.2.3 From 9145bcf63575a8b78590a5beaf604001e9c8d2ef Mon Sep 17 00:00:00 2001 From: "David S. Miller" <davem@sunset.davemloft.net> Date: Sat, 10 Jun 2006 22:02:17 -0700 Subject: [SPARC64]: Set appropriate max_cache_size. Signed-off-by: David S. Miller <davem@davemloft.net> --- arch/sparc64/kernel/smp.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) (limited to 'arch') diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index 4e8cd79156e..f03d52d0b88 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -1287,6 +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) { @@ -1322,6 +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 -- cgit v1.2.3 From 650fb8382287f7990d5127a82a54295139224606 Mon Sep 17 00:00:00 2001 From: Krzysztof Helt <krzysztof.h1@wp.pl> Date: Sat, 10 Jun 2006 22:03:43 -0700 Subject: [SPARC]: Migration cost tune up in sparc smp. This patch sets the max_cache_size value required to tune up scheduler in SMP systems. Otherwise, the calculated migration_cost is too high and task scheduling may lock up. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: David S. Miller <davem@davemloft.net> --- arch/sparc/kernel/smp.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch') diff --git a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c index a93f5da6855..40b42c88e6a 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); } -- cgit v1.2.3 From ccefb5f3f60cd116d9a8ce2fa9e82e67206e49e5 Mon Sep 17 00:00:00 2001 From: "David S. Miller" <davem@sunset.davemloft.net> Date: Sun, 11 Jun 2006 21:00:46 -0700 Subject: [SPARC64]: Do not double-export sys_close() when CONFIG_SOLARIS_EMUL_MODULE It is already exported by fs/open.c Noticed by Ben Collins. Signed-off-by: David S. Miller <davem@davemloft.net> --- arch/sparc64/kernel/sparc64_ksyms.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch') diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c index 62d8a99271e..38e569f786d 100644 --- a/arch/sparc64/kernel/sparc64_ksyms.c +++ b/arch/sparc64/kernel/sparc64_ksyms.c @@ -297,7 +297,6 @@ EXPORT_SYMBOL(svr4_getcontext); EXPORT_SYMBOL(svr4_setcontext); EXPORT_SYMBOL(compat_sys_ioctl); EXPORT_SYMBOL(sparc32_open); -EXPORT_SYMBOL(sys_close); #endif /* Special internal versions of library functions. */ -- cgit v1.2.3