FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F6.2.0_cvs 2007-01-11T22:54:46Z 2007-01-11T22:54:46Z cvs2svn cvs2svn@FreeBSD.org 2007-01-11T22:54:46Z urn:sha1:201f78d6b90635d961fa373ecd706e3786333b7e 'RELENG_6_2_0_RELEASE'. This commit was manufactured to restore the state of the 6.2-RELEASE image. 2006-10-30T18:03:04Z John Baldwin jhb@FreeBSD.org 2006-10-30T18:03:04Z urn:sha1:901d7bba34778066f0883925fc64caf663894148 (PICs) rather than interrupt sources. As a result, always reset the 8259As on resume and reset the local APIC of the BSP on resume. Approved by: re (hrs) 2006-10-19T14:52:03Z John Baldwin jhb@FreeBSD.org 2006-10-19T14:52:03Z urn:sha1:c7681c3b60df49d2675ed1064464e7b2e633cdef Approved by: re (hrs) 2006-08-17T21:26:56Z Marcel Moolenaar marcel@FreeBSD.org 2006-08-17T21:26:56Z urn:sha1:bc06fad1cd23533d1d5bcf6e396de6917a83422b o Correct PC register number o Implement gdb_cpu_signal() to map SIGTRAP correctly 2006-07-24T23:28:09Z Peter Wemm peter@FreeBSD.org 2006-07-24T23:28:09Z urn:sha1:64e41a2170abf42354fe9f4c6160c6ae9a6934f5 Note: these are defaulting to off for the moment. Use 'sysctl debug.minidump=1' to enable them. These should be turned on relatively soon though. Reminded by: emaste 2006-07-01T09:06:40Z David Xu davidxu@FreeBSD.org 2006-07-01T09:06:40Z urn:sha1:da6aba01b9d3796f17c4b554e2b342d843b3ab9b 2006-04-30T16:44:42Z cvs2svn cvs2svn@FreeBSD.org 2006-04-30T16:44:42Z urn:sha1:801f8c4f29054b3be7e9df20648abdf6c878be70 2006-04-24T18:24:31Z Jung-uk Kim jkim@FreeBSD.org 2006-04-24T18:24:31Z urn:sha1:943b424fcdb13e3525ac2d6136f4b6a4e8a5968f - Print number of physical/logical cores and more CPUID info. - Add newer CPUID definitions for future use. - Correct few MSR addresses while I am here. - Fix spelling mistake. Approved by: re (hrs) 2006-03-10T19:37:35Z John Baldwin jhb@FreeBSD.org 2006-03-10T19:37:35Z urn:sha1:272174a97c6ca574b8824883b21a3d2147c71e39 associated changes. More details below: Remove public declarations of variables that were forgotten when they were made static. Revision Changes Path 1.31 +0 -1 src/sys/sys/interrupt.h Make sure the interrupt is masked before processing it, or bad things can happen. Revision Changes Path 1.10 +3 -3 src/sys/arm/arm/intr.c Reorganize the interrupt handling code a bit to make a few things cleaner and increase flexibility to allow various different approaches to be tried in the future. - Split struct ithd up into two pieces. struct intr_event holds the list of interrupt handlers associated with interrupt sources. struct intr_thread contains the data relative to an interrupt thread. Currently we still provide a 1:1 relationship of events to threads with the exception that events only have an associated thread if there is at least one threaded interrupt handler attached to the event. This means that on x86 we no longer have 4 bazillion interrupt threads with no handlers. It also means that interrupt events with only INTR_FAST handlers no longer have an associated thread either. - Renamed struct intrhand to struct intr_handler to follow the struct intr_foo naming convention. This did require renaming the powerpc MD struct intr_handler to struct ppc_intr_handler. - INTR_FAST no longer implies INTR_EXCL on all architectures except for powerpc. This means that multiple INTR_FAST handlers can attach to the same interrupt and that INTR_FAST and non-INTR_FAST handlers can attach to the same interrupt. Sharing INTR_FAST handlers may not always be desirable, but having sio(4) and uhci(4) fight over an IRQ isn't fun either. Drivers can always still use INTR_EXCL to ask for an interrupt exclusively. The way this sharing works is that when an interrupt comes in, all the INTR_FAST handlers are executed first, and if any threaded handlers exist, the interrupt thread is scheduled afterwards. This type of layout also makes it possible to investigate using interrupt filters ala OS X where the filter determines whether or not its companion threaded handler should run. - Aside from the INTR_FAST changes above, the impact on MD interrupt code is mostly just 's/ithread/intr_event/'. - A new MI ddb command 'show intrs' walks the list of interrupt events dumping their state. It also has a '/v' verbose switch which dumps info about all of the handlers attached to each event. - We currently don't destroy an interrupt thread when the last threaded handler is removed because it would suck for things like ppbus(8)'s braindead behavior. The code is present, though, it is just under #if 0 for now. - Move the code to actually execute the threaded handlers for an interrrupt event into a separate function so that ithread_loop() becomes more readable. Previously this code was all in the middle of ithread_loop() and indented halfway across the screen. - Made struct intr_thread private to kern_intr.c and replaced td_ithd with a thread private flag TDP_ITHREAD. - In statclock, check curthread against idlethread directly rather than curthread's proc against idlethread's proc. (Not really related to intr changes) Tested on: alpha, amd64, i386, sparc64 Tested on: arm, ia64 (older version of patch by cognet and marcel) Revision Changes Path 1.88 +43 -29 src/sys/alpha/alpha/interrupt.c 1.38 +5 -5 src/sys/alpha/isa/isa.c 1.16 +58 -52 src/sys/amd64/amd64/intr_machdep.c 1.6 +1 -1 src/sys/amd64/include/intr_machdep.h 1.16 +2 -2 src/sys/amd64/isa/atpic.c 1.11 +28 -22 src/sys/arm/arm/intr.c 1.462 +2 -2 src/sys/dev/sio/sio.c 1.6 +1 -1 src/sys/dev/uart/uart_kbd_sun.c 1.24 +2 -2 src/sys/dev/uart/uart_tty.c 1.15 +58 -52 src/sys/i386/i386/intr_machdep.c 1.8 +1 -1 src/sys/i386/include/intr_machdep.h 1.21 +2 -2 src/sys/i386/isa/atpic.c 1.52 +32 -25 src/sys/ia64/ia64/interrupt.c 1.180 +3 -2 src/sys/kern/kern_clock.c 1.127 +437 -270 src/sys/kern/kern_intr.c 1.206 +0 -1 src/sys/kern/subr_witness.c 1.6 +3 -3 src/sys/powerpc/include/intr_machdep.h 1.7 +35 -32 src/sys/powerpc/powerpc/intr_machdep.c 1.14 +1 -1 src/sys/sparc64/include/intr_machdep.h 1.24 +43 -36 src/sys/sparc64/sparc64/intr_machdep.c 1.32 +36 -36 src/sys/sys/interrupt.h 1.440 +1 -3 src/sys/sys/proc.h Catch up with interrupt-thread changes. Revision Changes Path 1.32 +1 -1 src/sys/dev/zs/zs.c Catch up with new interrupt handling code. Revision Changes Path 1.16 +3 -3 src/sys/netgraph/bluetooth/drivers/bt3c/ng_bt3c_pccard.c Catch up with new interrupt handling code. Revision Changes Path 1.162 +2 -2 src/sys/dev/cy/cy.c 1.101 +2 -2 src/sys/dev/rc/rc.c Catch up with new interrupt handling code. Revision Changes Path 1.50 +2 -2 src/sys/dev/cx/if_cx.c 1.41 +1 -1 src/sys/dev/sab/sab.c 1.238 +2 -2 src/sys/pc98/cbus/sio.c Add a swi_remove() function to teardown software interrupt handlers. For now it just calls intr_event_remove_handler(), but at some point it might also be responsible for tearing down interrupt events created via swi_add. Revision Changes Path 1.128 +17 -0 src/sys/kern/kern_intr.c 1.33 +1 -0 src/sys/sys/interrupt.h - Use swi_remove() to teardown swi handlers rather than intr_event_remove_handler(). - Remove tty: prefix from a couple of swi handler names. Revision Changes Path 1.51 +1 -1 src/sys/dev/cx/if_cx.c 1.102 +2 -2 src/sys/dev/rc/rc.c 1.42 +1 -1 src/sys/dev/sab/sab.c 1.25 +1 -1 src/sys/dev/uart/uart_tty.c 1.33 +1 -1 src/sys/dev/zs/zs.c 1.17 +2 -2 src/sys/netgraph/bluetooth/drivers/bt3c/ng_bt3c_pccard.c Remove a stray return statement in the interrupt dispatch function that caused a premature exit after calling a fast interrupt handler and bypassing a much needed critical_exit() and the scheduling of the interrupt thread for non-fast handlers. In short: unbreak :-) Revision Changes Path 1.53 +0 -1 src/sys/ia64/ia64/interrupt.c If we get a stray interrupt, return after logging it. In the extremely rare case of a stray interrupt to an unregistered source (such as a stray interrupt from the 8259As when using APIC), this could result in a page fault when it tried to walk the list of interrupt handlers to execute INTR_FAST handlers. This bug was introduced with the intr_event changes, so it's not present in 5.x or 6.x. Submitted by: Mark Tinguely tinguely at casselton dot net Revision Changes Path 1.17 +1 -0 src/sys/amd64/amd64/intr_machdep.c 1.16 +1 -0 src/sys/i386/i386/intr_machdep.c Approved by: re (scottl) 2006-03-07T18:33:21Z John Baldwin jhb@FreeBSD.org 2006-03-07T18:33:21Z urn:sha1:f7ab7e7039215455aca032e114842adfa418e392 to individual CPUs using physical addressing and fixed delivery mode. Approved by: re (scottl)