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2019-03-25m68k: Call timer_interrupt() with interrupts disabledFinn Thain1-2/+2
Some platforms execute their timer handler with the interrupt priority level set below 6. That means the handler could be interrupted by another driver and this could lead to re-entry of the timer core. Avoid this by use of local_irq_save/restore for timer interrupt dispatch. This provides mutual exclusion around the timer interrupt flag access which is needed later in this series for the clocksource conversion. Reported-by: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/alpine.DEB.2.21.1811131407120.2697@nanos.tec.linutronix.de Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2014-03-20m68k: atari: Fix the last kernel_stat.h falloutThomas Gleixner1-0/+1
Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-01-13m68k/irq - Use polled IRQ flag for MFP timer cascaded interruptsMichael Schmitz1-0/+3
Some Atari hardware has no capacity to raise interrupts (e.g. network or USB adapter hardware attached via ROM port). The driver interrupt routine is called from a timer interrupt (timer D) in these cases, using chained device specific pseudo interrupts (IRQ_MFP_TIMER1 ff.) These interrupts will more often than not, return IRQ_NONE as there is not always work for the device handler when called. Too many unhandled interrupts will result in the interrupt being disabled by the stuck interrupt watchdog. As preferred option to flag interrupts as needing exclusion from the watchdog mechanism, tglx added the IRQ_IS_POLLED flag for use in such a case. Currently, two interrupts need to use this flag. Add more users as needed. Signed-off-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-04-16m68k/atari: EtherNAT - add interrupt chip definition for CPLD interruptsMichael Schmitz1-0/+82
Add a dedicated interrupt chip definition for the EtherNAT CPLD interrupts. SMC91C111 and ISP1160 chips have separate interrupts that can be enabled and disabled in a CPLD register at offset 0x23 from the card base. Note the CPLD interrupt control register is mapped on demand, whenever any interrupt enable/disable action is requested. The EtherNAT USB driver still needs interrupts disabled around reset and start actions. In particular, we cannot entirely rely on the irq_startup being called first. The smc91x and isp116x-hcd drivers will use this feature. Signed-off-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2013-04-16m68k/atari: use dedicated irq_chip for timer D interruptsMichael Schmitz1-0/+70
Add a special irq_chip for the Atari MFP timer D interrupt, which is used as a polling timer for EtherNEC and NetUSBee Signed-off-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2012-04-22m68k/atari: Change VME irq numbers from unsigned long to unsigned intGeert Uytterhoeven1-2/+2
Device interrupts numbers were changed to unsigned int in 1997, the year IRQ_MACHSPEC was killed as well. Also kill a related cast while we're at it. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: netdev@vger.kernel.org
2012-03-28Disintegrate asm/system.h for M68KDavid Howells1-1/+0
Disintegrate asm/system.h for M68K. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Greg Ungerer <gerg@uclinux.org> cc: linux-m68k@lists.linux-m68k.org
2011-12-10m68k/atari: Move declaration of atari_SCC_reset_done to header fileGeert Uytterhoeven1-2/+0
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-11-08m68k/irq: Remove obsolete support for user vector interrupt fixupsGeert Uytterhoeven1-1/+1
It was used on Apollo only, before its conversion to genirq. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-11-08m68k/atari: Remove code and comments about different irq typesGeert Uytterhoeven1-236/+0
This code was obsoleted during the irq restructuring in 2006. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-11-08m68k/irq: Add m68k_setup_irq_controller()Geert Uytterhoeven1-1/+2
This is a wrapper around m68k_setup_irq_chip() that discards its dummy second parameter, to ease the future transition to genirq. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-11-08m68k/irq: Switch irq_chip methods to "struct irq_data *data"Geert Uytterhoeven1-8/+22
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Thomas Gleixner <tglx@linutronix.de>
2011-11-08m68k/irq: Rename irq_controller to irq_chipGeert Uytterhoeven1-8/+7
Make it more similar to the genirq version: - Remove lock (unused as we don't do SMP anyway), - Prepend methods with irq_, - Make irq_startup() return unsigned int. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Thomas Gleixner <tglx@linutronix.de>
2011-01-23m68k/atari: Rename "scc" to "atari_scc"Geert Uytterhoeven1-2/+2
It's a way too generic name for a global #define and conflicts with a variable with the same name, causing build errors like: | drivers/staging/brcm80211/brcmfmac/../util/siutils.c: In function ‘_si_clkctl_cc’: | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1364: error: expected identifier or ‘(’ before ‘volatile’ | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1364: error: expected ‘)’ before ‘(’ token | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1421: error: incompatible types in assignment | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1422: error: invalid operands to binary & | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1423: error: invalid operands to binary & | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1424: error: invalid operands to binary | | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1425: error: aggregate value used where an integer was expected | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1425: error: aggregate value used where an integer was expected | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1425: error: aggregate value used where an integer was expected | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1425: error: aggregate value used where an integer was expected | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1425: error: aggregate value used where an integer was expected | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1425: error: aggregate value used where an integer was expected | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1425: error: aggregate value used where an integer was expected | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1425: error: aggregate value used where an integer was expected | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1425: error: aggregate value used where an integer was expected | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1425: error: aggregate value used where an integer was expected | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1425: error: aggregate value used where an integer was expected | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1425: error: incompatible type for argument 4 of ‘bcmsdh_reg_write’ | drivers/staging/brcm80211/brcmfmac/../util/siutils.c:1428: error: invalid operands to binary & | make[8]: *** [drivers/staging/brcm80211/brcmfmac/../util/siutils.o] Error 1 Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2009-02-22m68k: atari - Rename "mfp" to "st_mfp"Geert Uytterhoeven1-8/+8
http://kisskb.ellerman.id.au/kisskb/buildresult/72115/: | net/mac80211/ieee80211_i.h:327: error: syntax error before 'volatile' | net/mac80211/ieee80211_i.h:350: error: syntax error before '}' token | net/mac80211/ieee80211_i.h:455: error: field 'sta' has incomplete type | distcc[19430] ERROR: compile net/mac80211/main.c on sprygo/32 failed This is caused by | # define mfp ((*(volatile struct MFP*)MFP_BAS)) in arch/m68k/include/asm/atarihw.h, which conflicts with the new "mfp" enum in net/mac80211/ieee80211_i.h. Rename "mfp" to "st_mfp", as it's a way too generic name for a global #define. 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 Bunk1-4/+2
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>
2008-02-05m68k: kill arch/m68k/atari/atari_ksyms.cAdrian Bunk1-0/+3
EXPORT_SYMBOL's belong to the actual code. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07SPIN_LOCK_UNLOCKED cleanup in arch/m68kMilind Arun Choudhary1-1/+1
SPIN_LOCK_UNLOCKED cleanup,use __SPIN_LOCK_UNLOCKED instead Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-10-09[PATCH] m68k/Atari: Interrupt updatesGeert Uytterhoeven1-2/+7
Misc Atari fixes: - initialize correct number of atari irqs - silence vbl interrupt until it's used by atafb - use mdelay() to read clock if necessary Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25[PATCH] m68k: convert atari irq codeRoman Zippel1-236/+42
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>
2006-06-25[PATCH] m68k: separate handler for auto and user vector interruptRoman Zippel1-6/+6
Use separate entry points for auto and user vector interrupts and cleanup naming a little. 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-rc2v2.6.12-rc2Linus Torvalds1-0/+648
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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