From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Grant Grundler <grundler@parisc-linux.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>,
Kyle McMartin <kyle@parisc-linux.org>,
linuxppc-dev@ozlabs.org, Brice Goglin <brice@myri.com>,
shaohua.li@intel.com, linux-pci@atrey.karlin.mff.cuni.cz,
"David S. Miller" <davem@davemloft.net>,
"Eric W. Biederman" <ebiederm@xmission.com>
Subject: Re: [RFC/PATCH 0/16] Ops based MSI Implementation
Date: Sat, 27 Jan 2007 08:58:03 +1100 [thread overview]
Message-ID: <1169848684.24996.162.camel@localhost.localdomain> (raw)
In-Reply-To: <20070126074833.GF328@colo.lackof.org>
> Hrm ok. IRQ migration shouldn't surprise anyone.
> I expect the "virq" (linux IRQ #) would hide the values changing
> in a Suspend/resume event. If the code isn't doing that for platforms
> that support suspend/resume, then I agree it's broken.
All if this is entirely backend business at this point. Michael's latest
code drop is apparently still missing suspend/resume hooks though, we
need to fix that. What those hooks do is backend specific. For example,
on MPIC machines, the vector will stay the same and it's really only a
matter of re-programming the HW with the same values. On RTAS (if we
ever implement suspend-to-something on pSeries), we would probably get
different vectors and thus have to update the virq->vector mapping.
Since virtual IRQs are something implemented by each platform
differently, none of that can be put in the generic code anyway.
Ben.
next prev parent reply other threads:[~2007-01-26 21:58 UTC|newest]
Thread overview: 178+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-25 8:34 [RFC/PATCH 0/16] Ops based MSI Implementation Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 1/16] Replace pci_msi_quirk with calls to pci_no_msi() Michael Ellerman
2007-01-25 22:33 ` patch msi-replace-pci_msi_quirk-with-calls-to-pci_no_msi.patch added to gregkh-2.6 tree gregkh
2007-01-25 8:34 ` [RFC/PATCH 3/16] Combine pci_(save|restore)_msi/msix_state Michael Ellerman
2007-01-25 22:33 ` patch msi-combine-pci__msi-msix_state.patch added to gregkh-2.6 tree gregkh
2007-01-25 8:34 ` [RFC/PATCH 2/16] Remove pci_scan_msi_device() Michael Ellerman
2007-01-25 22:33 ` patch msi-remove-pci_scan_msi_device.patch added to gregkh-2.6 tree gregkh
2007-01-25 8:34 ` [RFC/PATCH 4/16] Abstract MSI suspend Michael Ellerman
2007-01-25 22:33 ` patch msi-abstract-msi-suspend.patch added to gregkh-2.6 tree gregkh
2007-01-28 8:27 ` [RFC/PATCH 4/16] Abstract MSI suspend Eric W. Biederman
2007-01-29 7:22 ` Michael Ellerman
2007-01-29 8:45 ` Eric W. Biederman
2007-01-29 9:47 ` Michael Ellerman
2007-01-29 16:52 ` Grant Grundler
2007-01-29 16:57 ` Roland Dreier
2007-01-29 17:02 ` Roland Dreier
2007-01-29 17:25 ` Eric W. Biederman
2007-01-29 17:32 ` Roland Dreier
2007-01-29 22:03 ` Grant Grundler
2007-01-29 17:20 ` Eric W. Biederman
2007-02-01 4:24 ` Greg KH
2007-01-25 8:34 ` [RFC/PATCH 5/16] Ops based MSI implementation Michael Ellerman
2007-01-25 21:52 ` Greg KH
2007-01-25 22:05 ` Roland Dreier
2007-01-25 22:10 ` Greg KH
2007-01-26 1:02 ` Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 6/16] Add bare metal MSI enable & disable routines Michael Ellerman
2007-01-26 5:35 ` Eric W. Biederman
2007-01-25 8:34 ` [RFC/PATCH 7/16] Rip out the existing powerpc msi stubs Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 9/16] RTAS MSI implementation Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 8/16] Enable MSI on Powerpc Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 10/16] Add a pci_irq_fixup for MSI via RTAS Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 11/16] Activate MSI via RTAS on pseries Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 12/16] Tell firmware we support MSI Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 13/16] MPIC MSI allocator Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 15/16] Enable MSI mappings for MPIC Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 14/16] MPIC MSI backend Michael Ellerman
2007-01-26 6:43 ` Grant Grundler
2007-01-26 7:02 ` Eric W. Biederman
2007-01-26 8:47 ` Segher Boessenkool
2007-01-26 16:32 ` Eric W. Biederman
2007-01-26 17:19 ` Grant Grundler
2007-01-26 17:56 ` Eric W. Biederman
2007-01-26 22:48 ` Benjamin Herrenschmidt
2007-01-27 7:01 ` Michael Ellerman
2007-01-26 22:40 ` Benjamin Herrenschmidt
2007-01-27 2:11 ` David Miller
2007-01-26 22:08 ` Benjamin Herrenschmidt
2007-01-27 6:54 ` Michael Ellerman
2007-01-26 20:50 ` Benjamin Herrenschmidt
2007-01-26 22:46 ` Paul Mackerras
2007-01-27 2:46 ` Eric W. Biederman
2007-01-27 3:02 ` David Miller
2007-01-27 4:28 ` Eric W. Biederman
2007-01-27 18:30 ` Grant Grundler
2007-01-27 20:02 ` Benjamin Herrenschmidt
2007-01-26 20:41 ` Benjamin Herrenschmidt
2007-01-26 9:11 ` Segher Boessenkool
2007-01-27 6:33 ` Michael Ellerman
2007-01-25 8:34 ` [RFC/PATCH 16/16] Activate MSI for the MPIC backend on U3 Michael Ellerman
2007-01-25 21:53 ` [RFC/PATCH 0/16] Ops based MSI Implementation Greg KH
2007-01-25 21:55 ` David Miller
2007-01-26 1:05 ` Michael Ellerman
2007-01-26 1:03 ` Michael Ellerman
2007-01-26 6:18 ` Eric W. Biederman
2007-01-26 6:56 ` Grant Grundler
2007-01-26 7:15 ` Eric W. Biederman
2007-01-26 7:48 ` Grant Grundler
2007-01-26 15:26 ` Eric W. Biederman
2007-01-26 21:58 ` Benjamin Herrenschmidt [this message]
2007-01-26 8:57 ` Segher Boessenkool
2007-01-26 17:27 ` Grant Grundler
2007-01-26 20:57 ` Benjamin Herrenschmidt
2007-01-26 21:24 ` Benjamin Herrenschmidt
2007-01-27 5:41 ` Michael Ellerman
2007-01-28 6:16 ` Eric W. Biederman
2007-01-28 8:12 ` Michael Ellerman
2007-01-28 8:36 ` Eric W. Biederman
2007-01-28 20:14 ` Benjamin Herrenschmidt
2007-01-28 20:53 ` Eric W. Biederman
2007-01-28 21:17 ` Benjamin Herrenschmidt
2007-01-28 22:36 ` Eric W. Biederman
2007-01-28 23:17 ` Benjamin Herrenschmidt
2007-01-28 23:38 ` Eric W. Biederman
2007-01-28 23:51 ` David Miller
2007-01-29 0:58 ` Benjamin Herrenschmidt
2007-01-29 1:13 ` David Miller
2007-01-29 3:17 ` Benjamin Herrenschmidt
2007-01-29 4:19 ` David Miller
2007-01-29 4:44 ` Benjamin Herrenschmidt
2007-01-29 5:46 ` Eric W. Biederman
2007-01-29 6:08 ` Benjamin Herrenschmidt
2007-01-31 6:52 ` David Miller
2007-01-31 7:40 ` Eric W. Biederman
2007-02-01 0:55 ` David Miller
2007-01-29 0:26 ` Benjamin Herrenschmidt
2007-01-29 0:59 ` Michael Ellerman
2007-01-28 23:31 ` David Miller
2007-01-28 23:59 ` Benjamin Herrenschmidt
2007-01-28 23:26 ` David Miller
2007-01-28 23:25 ` David Miller
2007-01-27 4:59 ` Michael Ellerman
2007-01-28 19:40 ` [PATCH 0/6] MSI portability cleanups Eric W. Biederman
2007-01-28 19:40 ` Eric W. Biederman
2007-01-28 19:42 ` [PATCH 1/6] msi: Kill msi_lookup_irq Eric W. Biederman
2007-01-28 19:42 ` Eric W. Biederman
2007-01-28 19:44 ` [PATCH 2/6] msi: Remove msi_lock Eric W. Biederman
2007-01-28 19:44 ` Eric W. Biederman
2007-01-28 19:45 ` [PATCH 3/6] msi: Fix msi_remove_pci_irq_vectors Eric W. Biederman
2007-01-28 19:45 ` Eric W. Biederman
2007-01-28 19:47 ` [PATCH 4/6] msi: Remove attach_msi_entry Eric W. Biederman
2007-01-28 19:47 ` Eric W. Biederman
2007-01-28 19:52 ` [PATCH 5/6] msi: Kill the msi_desc array Eric W. Biederman
2007-01-28 19:52 ` Eric W. Biederman
2007-01-28 19:56 ` [PATCH 6/6] msi: Make MSI useable more architectures Eric W. Biederman
2007-01-28 19:56 ` Eric W. Biederman
2007-02-01 6:08 ` patch msi-make-msi-useable-more-architectures.patch added to gregkh-2.6 tree gregkh
2007-02-01 6:07 ` patch msi-kill-the-msi_desc-array.patch " gregkh
2007-02-01 6:08 ` patch msi-remove-attach_msi_entry.patch " gregkh
2007-02-01 6:07 ` patch msi-fix-msi_remove_pci_irq_vectors.patch " gregkh
2007-02-01 6:08 ` patch msi-remove-msi_lock.patch " gregkh
2007-01-28 22:01 ` [PATCH 1/6] msi: Kill msi_lookup_irq Paul Mackerras
2007-01-28 22:01 ` Paul Mackerras
2007-01-28 22:18 ` Eric W. Biederman
2007-01-28 22:18 ` Eric W. Biederman
2007-02-01 6:07 ` patch msi-kill-msi_lookup_irq.patch added to gregkh-2.6 tree gregkh
2007-01-28 20:23 ` [PATCH 0/6] MSI portability cleanups Benjamin Herrenschmidt
2007-01-28 20:23 ` Benjamin Herrenschmidt
2007-01-28 20:47 ` Jeff Garzik
2007-01-28 20:47 ` Jeff Garzik
2007-01-28 21:20 ` Eric W. Biederman
2007-01-28 21:20 ` Eric W. Biederman
2007-01-28 21:26 ` Ingo Molnar
2007-01-28 21:26 ` Ingo Molnar
2007-01-28 22:09 ` Benjamin Herrenschmidt
2007-01-28 22:09 ` Benjamin Herrenschmidt
2007-01-28 23:26 ` Eric W. Biederman
2007-01-28 23:26 ` Eric W. Biederman
2007-01-28 23:37 ` David Miller
2007-01-28 23:37 ` David Miller
2007-01-29 5:18 ` Eric W. Biederman
2007-01-29 5:18 ` Eric W. Biederman
2007-01-29 5:25 ` David Miller
2007-01-29 5:25 ` David Miller
2007-01-29 5:58 ` Eric W. Biederman
2007-01-29 5:58 ` Eric W. Biederman
2007-01-29 6:05 ` Benjamin Herrenschmidt
2007-01-29 6:05 ` Benjamin Herrenschmidt
2007-01-29 8:28 ` Eric W. Biederman
2007-01-29 8:28 ` Eric W. Biederman
2007-01-29 9:03 ` Eric W. Biederman
2007-01-29 9:03 ` Eric W. Biederman
2007-01-29 10:11 ` Michael Ellerman
2007-01-29 10:11 ` Michael Ellerman
2007-01-29 20:32 ` Benjamin Herrenschmidt
2007-01-29 20:32 ` Benjamin Herrenschmidt
2007-01-29 23:29 ` Paul Mackerras
2007-01-29 23:29 ` Paul Mackerras
2007-01-29 23:40 ` Benjamin Herrenschmidt
2007-01-29 23:40 ` Benjamin Herrenschmidt
2007-01-29 20:22 ` Benjamin Herrenschmidt
2007-01-29 20:22 ` Benjamin Herrenschmidt
2007-01-29 23:05 ` Paul Mackerras
2007-01-29 23:05 ` Paul Mackerras
2007-01-30 19:32 ` Segher Boessenkool
2007-01-30 19:32 ` Segher Boessenkool
2007-01-29 1:33 ` Benjamin Herrenschmidt
2007-01-29 1:33 ` Benjamin Herrenschmidt
2007-02-01 4:29 ` Greg KH
2007-02-01 4:29 ` Greg KH
2007-01-28 23:44 ` David Miller
2007-01-28 23:44 ` David Miller
2007-01-28 22:11 ` Eric W. Biederman
2007-01-28 22:11 ` Eric W. Biederman
2007-01-28 23:42 ` David Miller
2007-01-28 23:42 ` David Miller
2007-01-28 21:34 ` Eric W. Biederman
2007-01-28 21:34 ` Eric W. Biederman
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