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2008-10-16x86: unify ack_apic_edgeYinghai Lu
use code in 64 to replace move_native_irq(irq, desc); in 32 bit Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: unify mask_IO_APIC_irqYinghai Lu
use MACRO for 32 bit too Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16io_apic: make 32 bit have io_apic resource in /proc/iomemYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16rename io_apic_64.c and io_apic_32.c to io_apic.cYinghai Lu
The two files are now line by line equal. (sans a printk) Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: make io_apic_32.c the same as io_apic_64.cIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: make io_apic_64.c and io_apic_32.c the sameYinghai Lu
all the same except INTR_REMAPPING related and ioapic io resource. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: remove ioapic_forceYinghai Lu
no user left. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: make 64 handle sis_apic_bug like the 32 bitYinghai Lu
do we have 64bit system with sis chipset? [ mingo@elte.hu: nope, the problem chipset was 32-bit only. The code symmetry is good nevertheless. ] Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: make headers files the same in io_apic_xx.cYinghai Lu
also make no_timer_check to be global on 64 bit, because vmi_32 is using that. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: order variables in io_apic_xx.cYinghai Lu
move first_system_vector to apic_64.c. also add #ifdef CONFIG_INTR_REMAP to prepare 32 bit to use same file. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: ordering functions in io_apic_64.cYinghai Lu
try to make functions have the same order between 32-bit and 64-bit. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: ordering functions in io_apic_32.cYinghai Lu
prepare for unification: try to make functions be of the same order to io_apic_64.c. v2: add calling setup_msi_irq back to arch_setup_msi_irq Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86, io-apic: remove union about dest for log/phyYinghai Lu
let user decide the meaning of the bits. This unifies the 32-bit and 64-bit io-apic code a bit. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: add debug info for 32bit sparse_irqYinghai Lu
so could figure out bugs where we get an interrupt, but vector_irq is not initialized yet. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: make 32bit support per_cpu vectorYinghai Lu
so we can merge io_apic_32.c and io_apic_64.c v2: Use cpu_online_map as target cpus for bigsmp, just like 64-bit is doing. Also remove some unused TARGET_CPUS macro. v3: need to check if desc is null in smp_irq_move_cleanup also migration needs to reset vector too, so copy __target_IO_APIC_irq from 64bit. (the duplication will go away once the two files are unified.) Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: make 32 bit to use sparse_irqYinghai Lu
but actually irq still needs to be less than NR_IRQS, because interrupt[NR_IRQS] in entry.S. need to enable per_cpu vector... Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: make 32bit to use irq_2_pin in irq_cfgYinghai Lu
so it is more like 64 bit. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: make 32bit use irq_cfg_alloc, etcYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: add irq_cfg for 32bitYinghai Lu
it only contains vector ... Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: remove irqbalance in kernel for 32 bitYinghai Lu
This has been deprecated for years, the user space irqbalanced utility works better with numa, has configurable policies, etc... Signed-off-by: Yinghai Lu <yhlu.kernel@gmai.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: use 28 bits irq NR for pci msi/msix and htYinghai Lu
also print out irq no in /proc/interrups and /proc/stat in hex, so could tell bus/dev/func. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86_64: make /proc/interrupts work with dyn irq_descYinghai Lu
loop with irq_desc list Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86_64: separate irq_cfgx from irq_cfgx_freeYinghai Lu
so later don't need to compare with -1U Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86_64: rename irq_desc/irq_desc_allocYinghai Lu
change names: irq_desc() ==> irq_desc_alloc __irq_desc() ==> irq_desc Also split a few of the uses in lowlevel x86 code. v2: need to check if desc is null in smp_irq_move_cleanup Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: check with without_new in show_interruptsYinghai Lu
so we don't get new one that we don't need it. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16generic: add irq_desc in function in parameterYinghai Lu
So we could remove some duplicated calling to irq_desc v2: make sure irq_desc in init/main.c is not used without generic_hardirqs Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16irq: remove >= nr_irqs checking with config_have_sparse_irqYinghai Lu
remove irq limit checks - nr_irqs is dynamic and we expand anytime. v2: fix checking about result irq_cfg_without_new, so could use msi again v3: use irq_desc_without_new to check irq is valid Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86, ioapic: replace loop with nr_irqs with for_each_irq_icfgYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16irq: replace loop with nr_irqs with for_each_irq_descYinghai Lu
There are a handful of loops that go from 0 to nr_irqs and use get_irq_desc() on them. These would allocate all the irq_desc entries, regardless of the need for them. Use the smarter for_each_irq_desc() iterator that will only iterate over the present ones. v2: make sure arch without GENERIC_HARDIRQS work too Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: move kstat_irqs from kstat to irq_descYinghai Lu
based on Eric's patch ... together mold it with dyn_array for irq_desc, will allcate kstat_irqs for nr_irq_desc alltogether if needed. -- at that point nr_cpus is known already. v2: make sure system without generic_hardirqs works they don't have irq_desc v3: fix merging v4: [mingo@elte.hu] fix typo [ mingo@elte.hu ] irq: build fix fix: arch/x86/xen/spinlock.c: In function 'xen_spin_lock_slow': arch/x86/xen/spinlock.c:90: error: 'struct kernel_stat' has no member named 'irqs' Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: put irq_2_pin pointer into irq_cfgYinghai Lu
preallocate 32 irq_2_pin entries, and use get_one_free_irq_2_pin() to get one more and link to irq_cfg if needed. so don't waste one where no irq is enabled. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: add irq_cfg in io_apic_64.cYinghai Lu
preallocate size is 32, and if it is not enough, irq_cfg will more via alloc_bootmem() or kzalloc(). (depending on how early we are in system setup) v2: fix typo about size of init_one_irq_cfg ... should use sizeof(struct irq_cfg) v3: according to Eric, change get_irq_cfg() to irq_cfg() v4: squash add irq_cfg_alloc in Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16generic: sparse irqs: use irq_desc() together with dyn_array, instead of ↵Yinghai Lu
irq_desc[] add CONFIG_HAVE_SPARSE_IRQ to for use condensed array. Get rid of irq_desc[] array assumptions. Preallocate 32 irq_desc, and irq_desc() will try to get more. ( No change in functionality is expected anywhere, except the odd build failure where we missed a code site or where a crossing commit itroduces new irq_desc[] usage. ) v2: according to Eric, change get_irq_desc() to irq_desc() Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86, irq: get nr_irqs from madtYinghai Lu
Until now, NR_IRQS was derived from black magic defines that had to be "large enough" to both accomodate NR_CPUS and MAX_NR_IO_APICs. This resulted in a way too large irq_desc[] array on most x86 systems. Especially with larger CPU masks, the size of irq_desc can spiral out of control quickly. So be smarter about it and use precise allocation instead: determine the default maximum possible IRQ number from the ACPI MADT. Use a minimum limit of at least 32 IRQs for broken BIOSes. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16irq: sparse irqs, fix #3Ingo Molnar
fix non-APIC UP build: arch/x86/kernel/built-in.o: In function `setup_arch': : undefined reference to `pin_map_size' arch/x86/kernel/built-in.o: In function `setup_arch': : undefined reference to `first_free_entry' Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: use dyn_array in io_apic_xx.cYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: use nr_irqsYinghai Lu
also add first_free_entry and pin_map_size, which were NR_IRQS derived constants. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16irq: introduce nr_irqsYinghai Lu
at this point nr_irqs is equal NR_IRQS convert a few easy users from NR_IRQS to dynamic nr_irqs. v2: according to Eric, we need to take care of arch without generic_hardirqs Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: enable dyn_array supportYinghai Lu
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: alloc dyn_array all togetherYinghai Lu
so could spare some memory with small alignment in bootmem also tighten the alignment checking, and make print out less debug info. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16add per_cpu_dyn_array supportYinghai Lu
allow dyn-array in per_cpu area, allocated dynamically. usage: | /* in .h */ | struct kernel_stat { | struct cpu_usage_stat cpustat; | unsigned int *irqs; | }; | | /* in .c */ | DEFINE_PER_CPU(struct kernel_stat, kstat); | | DEFINE_PER_CPU_DYN_ARRAY_ADDR(per_cpu__kstat_irqs, per_cpu__kstat.irqs, sizeof(unsigned int), nr_irqs, sizeof(unsigned long), NULL); after setup_percpu()/per_cpu_alloc_dyn_array(), the dyn_array in per_cpu area is ready to use. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-16x86: add after_bootmem flag for 32bitYinghai Lu
to prepare to use dyn_array support etc. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-14Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c-viapro: Add support for SMBus Process Call transactions i2c: Restore i2c_smbus_process_call function i2c: Do earlier driver model init i2c: Only build Tyan SMBus mux drivers on x86 i2c: Guard against oopses from bad init sequences i2c: Document the implementation details of the /dev interface i2c: Improve dev-interface documentation i2c-parport-light: Don't register a platform device resource hwmon: (dme1737) Convert to a new-style i2c driver hwmon: (dme1737) Be less i2c-centric i2c/tps65010: Vibrator hookup to gpiolib i2c-viapro: Add VX800/VX820 support i2c: Renesas Highlander FPGA SMBus support i2c-pca-isa: Don't grab arbitrary resources i2c/isp1301_omap: Convert to a new-style i2c driver, part 2 i2c/isp1301_omap: Convert to a new-style i2c driver, part 1
2008-10-14x86: register a platform RTC device if PNP doesn't describe itBjorn Helgaas
Most if not all x86 platforms have an RTC device, but sometimes the RTC is not exposed as a PNP0b00/PNP0b01/PNP0b02 device in PNPBIOS or ACPI: http://bugzilla.kernel.org/show_bug.cgi?id=11580 https://bugzilla.redhat.com/show_bug.cgi?id=451188 It's best if we can discover the RTC via PNP because then we know which flavor of device it is, where it lives, and which IRQ it uses. But if we can't, we should register a platform device using the compiled-in RTC_PORT/RTC_IRQ resource assumptions. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Reported-by: Rik Theys <rik.theys@esat.kuleuven.be> Reported-by: shr_msn@yahoo.com.tw Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14arch/m68k/mm/kmap.c: introduce missing kfreeJulia Lawall
Error handling code following a kmalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,l; position p1,p2; expression *ptr != NULL; @@ ( if ((x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...)) == NULL) S | x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); .. if (x == NULL) S ) <... when != x when != if (...) { <+...x...+> } x->f = E ..> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14m68k: init_irq_proc depends on CONFIG_PROC_FSGeert Uytterhoeven
If CONFIG_PROC_FS is not set, I get: | arch/m68k/kernel/ints.c:433: error: redefinition of 'init_irq_proc' | include/linux/interrupt.h:438: error: previous definition of 'init_irq_proc' was here This was introduced by commit 6168a702ab0be181e5e57a0b2d0e7376f7a47f0b ("Declare init_irq_proc before we use it."), which replaced the #ifdef protection of the init_irq_proc() call by a static inline dummy if CONFIG_PROC_FS is not set. Make init_irq_proc() depend on CONFIG_PROC_FS to fix this. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14m68k: remove the dead PCI codeAdrian Bunk
This patch removes the no longer used m68k PCI code. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14m68k: Remove the broken Hades supportAdrian Bunk
This patch removes the Hades support that was marked as BROKEN 5 years ago. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14m68k: Add missing dma_sync_single_range_for_{cpu,device}()Geert Uytterhoeven
| include/linux/ssb/ssb.h: In function 'ssb_dma_sync_single_range_for_cpu': | include/linux/ssb/ssb.h:517: error: implicit declaration of function 'dma_sync_single_range_for_cpu' | include/linux/ssb/ssb.h: In function 'ssb_dma_sync_single_range_for_device': | include/linux/ssb/ssb.h:538: error: implicit declaration of function 'dma_sync_single_range_for_device' Add the missing dma_sync_single_range_for_{cpu,device}(), and remove the `inline' for the non-static function dma_sync_single_for_device(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-14m68k: Define rtc_lock on AtariGeert Uytterhoeven
The nvram and rtc-cmos drivers use the spinlock rtc_lock to protect against concurrent accesses to the CMOS memory. As m68k doesn't support SMP or preempt yet, the spinlock calls tend to get optimized away, but not for all configurations, causing in some rare cases: | ERROR: "rtc_lock" [drivers/rtc/rtc-cmos.ko] undefined! | ERROR: "rtc_lock" [drivers/char/nvram.ko] undefined! Add the spinlock to the Atari core code to avoid this. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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