- 05 May, 2007 29 commits
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Finn Thain authored
Fix the flakiness in the CUDA ADB driver on m68k macs (keypresses getting wedged down or ADB just going AWOL altogether). The only IRQ used by this driver is the VIA shift register IRQ. The PowerMac conditional code disables the other VIA IRQ sources, so don't mess with the other IRQ flags in the common code -- m68k macs need them. When polling, don't disable local interrupts when we only need to disable the CUDA interrupt. Unless polling, don't clear the shift register IRQ flag. On m68k macs this creates a race that often breaks CUDA ADB. Tested on Quadra 840av and LC630 (both m68k); also Beige G3 (powerpc). Signed-off-by:
Finn Thain <fthain@telegraphics.com.au> Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Finn Thain authored
Fix a crash caused by requests placed in the queue with the completed flag already set. This lead to some ADB_SYNC requests returning early and their request structs being popped off the stack while still queued. Stack corruption ensued or an invalid request callback pointer was invoked or both. Eliminate macii_retransmit() and its buggy implementation of macii_write(). Have macii_queue_poll() fully initialise the request queues. Fix a bug in macii_queue_poll() where the last_req pointer was not being set. This caused some requests to leave the queue before being completed (and would also corrupt the stack under certain conditions). Fix a race in macii_start that could set the state machine to "reading" while current_req was null. No longer send poll commands with the ADBREQ_REPLY flag -- doing that caused the replies to be stored in the request buffer where they were forgotten about. Don't autopoll by continuously sending new Talk commands. Get the controller to do that for us. This reduces the ADB interrupt rate on an idle bus to about 5 per second. Only autopoll the devices that were probed. Explicitly clear the interrupt flag when polling. Use disable_irq rather than local_irq_save when polling. Remove excess local_irq_save/restore pairs. Improve bus timeout and service request detection. Remove unused code (last_reply, adb_dir etc) and unneeded code (prefix_len, first_byte etc). Change TIP and TACK to their correct names on this ADB controller (ST_EVEN and ST_ODD). Add some commentry. Add a generous quantity of sanity checks (BUG_ONs). Let m68k macs use the adb_sync boot param too. Tested on Mac II, Mac IIci, Quadra 650, Quadra 700 etc. Signed-off-by:
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Finn Thain authored
There are no slow IRQs on Macs since Roman Zippel's IRQ reorganisation that went into 2.6.16 and removed mac_irq_list[] and the do_mac_irq_list() dispatcher. (They were implemented in do_mac_irq_list() by lowering the IPL.) Hence there's no more use for mutual exclusion in the Mac interrupt dispatchers. Remove it. Signed-off-by:
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Finn Thain authored
Some Macs lack a slot interrupt enable register. So the existing code makes disabled and unregistered slot IRQ lines outputs set high. This seems to work on quadras, but does not work on genuine VIAs (perhaps the card still succeeds in pulling the line low, or perhaps because this increases the settle time on the port A input, meaning that the CA1 IRQ could fire before the slot line reads active). Because of this, the nubus_active flags were used to mask IRQs, which is actually worse than the problem it tries to solve. Any interrupt masked by nubus_active will remain asserted and prevent further transitions on CA1. And so the nubus gets wedged regardless of hardware (emulated VIA ASIC, real VIA chip or RBV). The best solution to this hardware limitation of genuine VIAs is to disable the umbrella SLOTS IRQ when disabling a slot on those machines. Unfortunately, this means all slot IRQs get disabled when any slot IRQ is disabled. But it is only a problem when there's more than 1 device using nubus interrupts. Another potential problem for genuine VIAs is an unregistered nubus IRQ. Eventually it will be possible to enable the CA1 interrupt by installing its handler only _after_ all nubus drivers have loaded but _before_ the kernel needs them, at which time this last problem can be fixed. For now it can be worked around: - disable MacOS extensions - don't boot MacOS (use the Emile bootloader instead) - get the bootloaders to disable ROM drivers (Penguin does this for video cards already, don't know about Emile) - physically remove unsupported cards Signed-off-by: -
Finn Thain authored
Make sure that there are no slot IRQs asserted before leaving the nubus handler. If there are and we don't then the nubus gets wedged because this prevents a CA1 transition, which means no more nubus IRQs. Make the interrupt dispatch loops terminate sooner. Explicitly initialise the VIA latches to make the code more easily understood. Also some cleanups. Signed-off-by:
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Finn Thain authored
Reverse the last of a monumental brown-paper-bag commit that went into the 2.3 kernel. Signed-off-by:
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Finn Thain authored
Fix the support for C/NET nubus ethernet cards etc. Sync up the DP8390 driver with the latest code in the mac68k repo. Signed-off-by:
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Finn Thain authored
Sync the nubus defines with the latest code in the mac68k repo. Some of these are needed for DP8390 driver update in the next patch. Signed-off-by:
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Finn Thain authored
Add some more machines that support A/UX interrupt priorities. There are probably others as well, but I've only tested these ones so far. Signed-off-by:
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Finn Thain authored
The asm-m68k/adb.h header is unused. Some definitions are wrong and the rest are duplicated in linux/adb.h. Remove it. Signed-off-by:
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Geert Uytterhoeven authored
Add missing code to the Amiga A2065 and Ariadne drivers to update net_device_stats.tx_bytes. Signed-off-by:
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Finn Thain authored
Fixes a "static qualifier follows non-static qualifier" error from gcc 4. Signed-off-by:
Roman Zippel <zippel@linux-m68k.org> Signed-off-by:
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Geert Uytterhoeven authored
Workqueue updates for the Atari SCSI driver Signed-off-by:
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Sam Creasey authored
Only attempt to initialize the amount of interrupts a sun3 actually has... Signed-off-by:
Sam Creasey <sammy@sammy.net> Signed-off-by:
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Roman Zippel authored
Add early parameter support and convert current users to it. Signed-off-by:
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Geert Uytterhoeven authored
hilkbd: Kill compiler warning and fix comment dyslexia Signed-off-by:
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Roman Zippel authored
Reformat various m68k files, so they actually look like Linux sources. Signed-off-by:
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Roman Zippel authored
Add missing disable/enable irq variant Signed-off-by:
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Matthias Urlichs authored
Macintosh CS89x0 Ethernet: Netif updates Addition of netif_stop_queue() before transmission by Michael Schmitz skb_copy_{from,to}_linear_data() conversion by Geert Uytterhoeven Signed-off-by: -
Geert Uytterhoeven authored
Recent cross-compilers are called m68k-linux-gnu-gcc instead of m68k-linux-gcc Signed-off-by:
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Michael Schmitz authored
Update the atari fb to 2.6 by Michael Schmitz, Reformatting and rewrite of bit plane functions by Roman Zippel, A few more fixes by Geert Uytterhoeven. Signed-off-by:
Michael Schmitz <schmitz@debian.org> Signed-off-by:
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Michael Schmitz authored
Atari keyboard and mouse support. (reformating and Kconfig fixes by Roman Zippel) Signed-off-by:
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Roman Zippel authored
Atari SCSI driver compile fixes Signed-off-by:
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Roman Zippel authored
Reformat the Atari SCSI driver Signed-off-by:
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Michael Schmitz authored
SCSI should be working on a TT (but someone should really try!) but causes trouble on a Falcon (as in: it ate a filesystem of mine) at least when used concurrently with IDE. I have the notion it's because locking of the ST-DMA interrupt by IDE is broken in 2.6 (the IDE driver always complains about trying to release an already-released ST-DMA). Needs more work, but that's on the IDE or m68k interrupt side rather than SCSI. Signed-off-by:
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git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds authored
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: (44 commits) i2c-s3c2410: Fix bug in releasing driver i2c-s3c2410: Fix I2C SDA to SCL setup time i2c: New i2c-tiny-usb bus driver i2c: Documentation update i2c: SPIN_LOCK_UNLOCKED cleanup i2c: Obsolete i2c-ixp2000, i2c-ixp4xx and scx200_i2c i2c: New Simtec I2C bus driver i2c: Bitbanging I2C bus driver using the GPIO API Use menuconfig objects - I2C i2c: Restore i2c_smbus_read_block_data i2c-pxa: Clean transaction stop i2c-algo-bit: Improve debugging i2c-algo-bit: Implement a 50/50 SCL duty cycle i2c-omap: Switch to static adapter numbering i2c: Blackfin Two Wire Interface driver i2c-algo-sgi: Comment and whitespace cleanups i2c: Make i2c_del_driver a void function i2c: Move i2c-isa-only exported symbol declarations i2c: Document i2c_new_device() i2c: Add i2c_new_probed_device() ... Fixed trivial conflict in Documentation/feature-removal-schedule.txt manually. Signed-off-by:
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Stuart MacDonald authored
I am no longer with CTI. The Support Department will handle all inquiries regarding the WH. Signed-off-by:
Stuart MacDonald <stuartm@connecttech.com> Signed-off-by:
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Report the number of processors in PowerNow-k8 correctly [CPUFREQ] do not declare undefined functions [CPUFREQ] cleanup kconfig options [CPUFREQ] Longhaul - Revert Longhaul ver. 2 [CPUFREQ] Remove deprecated /proc/acpi/processor/performance write support [CPUFREQ] Fix limited cpufreq when booted on battery Fix preemption warnings in speedstep-centrino.c [CPUFREQ] Longhaul - Correct PCI code [CPUFREQ] p4-clockmod: switch to rdmsr_on_cpu/wrmsr_on_cpu
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart: [AGPGART] sworks-agp: Switch to PCI ref counting APIs [AGPGART] Nvidia AGP: Use refcount aware PCI interfaces [AGPGART] Fix sparse warning in sgi-agp.c [AGPGART] Intel-agp adjustments [AGPGART] Move [un]map_page_into_agp into asm/agp.h [AGPGART] Add missing calls to global_flush_tlb() to ali-agp [AGPGART] prevent probe collision of sis-agp and amd64_agp
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- 04 May, 2007 9 commits
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Martin Schwidefsky authored
Signed-off-by:Martin Schwidefsky <schwidefsky@de.ibm.com>
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Michael Holzheu authored
Instead of the deprecated read_conf_data(), implement a new function tape_3590_read_dev_chars(). Signed-off-by:
Michael Holzheu <holzheu@de.ibm.com> Signed-off-by:
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Cornelia Huck authored
Instead of the deprecated read_conf_data(), implement a new function qeth_read_conf_data(). Signed-off-by:
Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by:
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Cornelia Huck authored
Instead of the deprecated read_dev_chars() and read_conf_data_lpm(), implement dasd_generic_read_dev_chars() and dasd_eckd_read_conf_lpm(). These should even recover better from error than the original cio functions. Signed-off-by:
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Cornelia Huck authored
These helper functions are a leftover from 2.4 sync I/O and are a notorious source for bugs. They lead to device driver specific code creeping into cio, and some issues can't really be fixed at all. Device drivers can easily implement those functions themselves in a more robust manner, so let's get rid of them. Signed-off-by:
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Ursula Braun authored
Use atomic_t/atomic64_t to make qdio performance statistics smp safe. Remove temporarily calculation of "total time of inbound actions". Signed-off-by:
Ursula Braun <braunu@de.ibm.com> Signed-off-by:
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Martin Schwidefsky authored
Commit c1821c2e introduced the uaccess structure that is used to select the correct set of user copy functions for the different execution modes (standard vs. noexec vs. z9 optimized user copy). The uaccess symbol is exported with EXPORT_SYMBOL_GPL. This breaks all non-gpl modules that use user copy. To make them work again change the export to EXPORT_SYMBOL. Signed-off-by:
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Jan Glauber authored
Register aes-s390 algorithms with the actual supported max keylen size Signed-off-by:
Jan Glauber <jan.glauber@de.ibm.com> Signed-off-by:
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Christoph Hellwig authored
And here's a port of the powerpc patch to get rid of the notifier chain completely to s390. It's ontop of Martins patch as that one is in mainline already. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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- 01 May, 2007 2 commits
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Ben Dooks authored
When compiled as a module, the i2c-s3c2410 driver does not free either the IRQ or the i2c adapter it attached to the system. As part of this fix, move to the usual kernel style of freeing items as part of the probe error path making the remove process easier. Signed-off-by:
Ben Dooks <ben-linux@fluff.org> Signed-off-by:
Jean Delvare <khali@linux-fr.org>
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Ben Dooks authored
Fix the setup time for SDA to SCL due to the way the S3C24XX I2C controller works. Signed-off-by:
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