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path: root/arch/m68k/mac/psc.c
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2019-05-21treewide: Add SPDX license identifier for missed filesThomas Gleixner
Add SPDX license identifiers to all files which: - Have no license information of any form - Have EXPORT_.*_SYMBOL_GPL inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-09m68k/mac: More printk modernizationFinn Thain
Log message fragments used to be printed on one line but now get split up. Fix this. Also, suppress log spam that merely prints known pointer values. Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-02-09m68k/mac: Clean up interrupt debug macros and printk statementsFinn Thain
Mac interrupt code has been debugged. The Penguin deficiencies that still cause unhandled interrupts aren't fixable here. Besides, interrupts are fast and frequent and these printk statements were never really useful IMO. Remove them. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2015-11-23m68k/mac: Kill psc_presentGeert Uytterhoeven
The presence of the Apple Peripheral System Controller (PSC) can be tested for by just checking its base address pointer. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2015-09-29m68k/mac: Export Peripheral System Controller (PSC) base address to modulesGeert Uytterhoeven
If CONFIG_MACMACE=m: ERROR: psc [drivers/net/ethernet/apple/macmace.ko] undefined! Add the missing export to fix this. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-16genirq: Remove irq argument from irq flow handlersThomas Gleixner
Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-08-01m68k/irq: Prepare irq handlers for irq argument removalThomas Gleixner
The irq argument of most interrupt flow handlers is unused or merily used instead of a local variable. The handlers which need the irq argument can retrieve the irq number from the irq descriptor. Search and update was done with coccinelle and the invaluable help of Julia Lawall. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: linux-m68k@lists.linux-m68k.org
2015-06-25m68k/psc: Fix race in installing chained IRQ handlerThomas Gleixner
Fix a race where a pending interrupt could be received and the handler called before the handler's data has been setup, by converting to irq_set_chained_handler_and_data(). Search and conversion was done with coccinelle: @@ expression E1, E2, E3; @@ ( -if (irq_set_chained_handler(E1, E3) != 0) - BUG(); | -irq_set_chained_handler(E1, E3); ) -irq_set_handler_data(E1, E2); +irq_set_chained_handler_and_data(E1, E3, E2); @@ expression E1, E2, E3; @@ ( -if (irq_set_chained_handler(E1, E3) != 0) - BUG(); ... | -irq_set_chained_handler(E1, E3); ... ) -irq_set_handler_data(E1, E2); +irq_set_chained_handler_and_data(E1, E3, E2); Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Joshua Thompson <funaho@jurai.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: linux-m68k@lists.linux-m68k.org
2013-11-26m68k: Remove superfluous inclusions of <asm/bootinfo.h>Geert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-11-26m68k: Mark functions only called from setup_arch() __initGeert Uytterhoeven
Some functions that are only called (indirectly) from setup_arch() lack __init annotations. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-12-10m68k/mac: cleanup mac_irq_pendingFinn Thain
mac_irq_pending() has only one caller (mac_esp.c). Nothing tests for Baboon, PSC or OSS pending interrupts. Until that need arises, let's keep it simple and remove all the unused abstraction. Replace it with a routine to check for SCSI DRQ. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-12-10m68k/mac: cleanup mac_clear_irqFinn Thain
mac_clear_irq() is dead code and has been dead for as long as I can recall. On certain Mac models, certain irqs can't be cleared this way. Outside of irq dispatch, this code appears be unusable without busy loops or worse, and for irq dispatch we duplicate the same logic. Remove mac_clear_irq() and supporting code. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-11-08m68k/irq: Remove obsolete m68k irq frameworkGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-11-08m68k/mac: Optimize interrupts using chain handlersGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-11-08m68k/mac: Convert Mac to genirqGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-11-08m68k/irq: Rename {,__}m68k_handle_int()Geert Uytterhoeven
- Rename m68k_handle_int() to generic_handle_irq(), and drop the unneeded asmlinkage, - Rename __m68k_handle_int() to do_IRQ(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2010-12-10fix comment typos concerning "consistent"Uwe Kleine-König
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-01-12m68k: mac core - Kill warn_unused_result warningsGeert Uytterhoeven
warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2008-07-20m68k/mac/: possible cleanupsAdrian Bunk
This patch contains the following possible cleanups: - make the following needlessly global code (always) static: - baboon.c: struct baboon - baboon.c: baboon_irq() - config.c: mac_orig_videoaddr - config.c: mac_identify() - config.c: mac_report_hardware() - config.c: mac_debug_console_write() - config.c: mac_sccb_console_write() - config.c: mac_scca_console_write() - config.c: mac_init_scc_port() - oss.c: oss_irq() - oss.c: oss_nubus_irq() - psc.c: psc_debug_dump() - psc.c: psc_dma_die_die_die() - via.c: rbv_clear - remove the unused bootparse.c - #if 0 the following unused functions: - config.c: mac_debugging_short() - config.c: mac_debugging_long() - remove the following unused code: - config.c: mac_bisize - config.c: mac_env - config.c: mac_SCC_init_done - config.c: mac_SCC_reset_done - config.c: mac_init_scca_port() - config.c: mac_init_sccb_port() 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>
2007-05-04m68k: Mac IRQ cleanupFinn Thain
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: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-04m68k: Mac IRQ prepFinn Thain
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: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-04m68k: reverse Mac IRQ damageFinn Thain
Reverse the last of a monumental brown-paper-bag commit that went into the 2.3 kernel. 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>
2006-10-07[PATCH] m68k pt_regs fixesAl Viro
m68k_handle_int() split in two functions: __m68k_handle_int() takes pt_regs * and does set_irq_regs(); m68k_handle_int() doesn't get pt_regs *. Places where we used to call m68k_handle_int() recursively with the same pt_regs have simply lost the second argument, the rest is switched to __m68k_handle_int(). The rest of patch is just dropping pt_regs * where needed. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25[PATCH] m68k: convert mac irq codeRoman Zippel
Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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